US386142A - Convertible chair and cot - Google Patents

Convertible chair and cot Download PDF

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US386142A
US386142A US386142DA US386142A US 386142 A US386142 A US 386142A US 386142D A US386142D A US 386142DA US 386142 A US386142 A US 386142A
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seat
foot
rest
chair
legs
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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C1/00Chairs adapted for special purposes
    • A47C1/02Reclining or easy chairs
    • A47C1/031Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03255Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest with a central column, e.g. rocking office chairs

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  • Myinvention relates to improvements in that class of convertible chairs and cots shown in a prior application filed by me on November 30, 1886, Serial No. 220,292; and it consists of the peculiar combination ofdevices and novel construction and arrangement ofthe various parts for service, as will be hereinafter fully described, and particularly pointed out in the claims.
  • the primary object of my invention is-to provide a convertible chair and cot with mechanism for lowering the back at a very slow rate and with entire safety, which is very desirable with invalids to avoid alarming them, and which will retain or hold the back in any desirable position.
  • a further object of my invention is to provide the chair with springs connected to the arms and base for returning the back to its normal position, so that when the weight of the occupant is taken off the back the springs will elevate the back to its proper position, which may b either a vertical or an inclined one, as may llCdOSll't'tl.
  • These return-springs are of sufficient stren th to elevate the back, which is pivoted to the seat and capable of a swinging movementthereon, so that the occupant of the chair can swing back and forth therein.
  • a further object of my invention is to provide a foot-rest with legs which are capable of a folding movement, so that when they are opened they adapt the foot-rest for service as an ottoman,which can be placed at any suitable point; and a further object is to provide the foot-rest with means wherein a pair of folding rackbars can be compactly folded and entirely concealed from view.
  • Figure 1 is a side elevation showing my invention adjusted for service as a cot.
  • Fig. 2 is a top plan view of the same.
  • Fig. 3 is a vertical sectional view through the same.
  • Fig. 4 is a side elevation of the device adjusted for service as a chair.
  • Fig. 5 is a vertical transverse sectional view on the line 00 a" of Fig. 4.
  • Fig. (3 is a detached perspective View of the foot-rest in an inverted position, showing one of the legs thereof unfolded.
  • Fig. 7 is a vertical sectional view through the foot-rest on the line 3 y of Fig.
  • Fig.8 is a detail View.
  • Fig. 9 represents detail perspective views of parts of the clamping mechanism.
  • Fig. 10 represents detail perspective views of parts of the coupling for the seat and frame.
  • Fig. 11 is an enlarged sectional elevation of the regulating elampsiu connection with the chairbase.
  • Fig. 12 is an enlarged detail view to show more clearly thepivotal connection between the rackbars that support the foot-rest.
  • A designates the base of a convertible chair and cot embodying my present invention, and A the oscillating or rocking seat, which is mounted on and connected to the base in the manner which I will now proceed to describe.
  • the coupling or connection B has a baseplate, I), which is affixed to the base, and with this base-plate is cast a post or standard, I); or it may be made separate from the plate and secured thereto in any suitable manner.
  • the post or standard is fitted in thelower end of a a seam movable socket, b, which is made hollow to receive the post, and the socket is flared at its lower end, so as to permit the said end to move freely over the upper end of the post when the seat A is oscillated, to which seat, the socket is connected.
  • a plate, 1) is rigidly affixed to the lower side of the oscillating seat and has a countersunk or recessed portion at or near its middle, into which the upper closed end of the socket b is fitted, the socket and the fixed seat plate being pivotally connected together by a pin or bolt, which passes through the socket and seat-plate, as shown.
  • the fixed'post or standard I) is provided with a longitudinal slot, b, and through this slot passesabolt, b which is fixed in the socket.
  • O are the coiled springs,whieh are arranged between the base and the oscillating seat and on opposite sides of the coupling B.
  • These springs are each formed of a single piece of elastic or spring wire of considerable tensile strength, and they are bent upon themselves to form the coilsc, the free ends of the springs being bent to form the prongs a, one of which is fitted in an openinginthebase and theother in the seat, to thereby hold the springs from displacement.
  • thecoupling B permits the seat to have a limited vertical movement, and at the same time an oscillating movement, with the pin or bolt of the socket and seat plate as a center, and that the coiled springs O normallyhold and retain the seat in its horizontal elevated position, as the tension of the springs is about equal.
  • a coiled spring 0, (indicated'in full lines in Fig.4c of the drawings,)may be fitted over the post, to prevent the socket from descending too far under the weight of alarge heavy person in the chair.
  • the springs are compressed according to the weight of the person in the chair.
  • the springs will be compressed but slightly, and an easy motion is insured thereto; and if a heavy person is seated therein the springs will of course be compressed to a greater extent, and be thereby rendered stronger and stiffer to resist any further weight, and also insure an easy resili- 7r,
  • ' D are the arms, which are arranged on opposite sides of the seat and back, and one end ofeach of said arms is pivoted to the back 0 3 at an intermediate point of its length, while to the other ends of the arms are pivoted the upper ends of links E, connected to the oscillating seat.
  • the outer ends of the arms D are provided with recessed portions d, formed in their lower sides, the rear wall of which is gradually inclined toward the lower edge of the arm, while the front wall is comparatively abrupt, and in this recess is fitted and pivoted the upper end of the link E.
  • braces which are pivoted at their upper ends to the links E at an intermediate point of the length of the latter, said braces [0 being arranged in inclined positions on oppo-. site sides of the seat and base.
  • the lower ends of these braces are passed through and held in their various adjusted positions by clamping devices G, which are connected by ⁇ [0 an intermediate device for simultaneous operation, so that when only one of the handwheels of the clamping devices is operatedboth of the devices will be caused to bind on the braces and hold the latter against move- :1
  • Each of the clamping devices has a rod or bar, 9, which is passed horizontally through an opening in the side of the seat A, and the outer ends of the rods are formed with en- 12o larged portions, through which are formed eyes or openings 9, which are of a size to permit the braces to pass freely therethrough.
  • These enlarged apertured portions of the rods are arranged .eXteriorly to the seat, and the lower free ends of the braces are fitted in and passed through the eyes or apertures of the said rods, to be clamped in place therein by the hand-wheels G, washers h h being interposed between the enlarged portion of the rod, the 1 0 hand-wheel, and the seat of the chair.
  • the handwheels are each provided with a threaded boss, If, which works on the threaded extension and bears against the washer h, to cause the latter to bind on one of the braces, which is in turn pressed against the inner side of the eye in the rod, thereby holding the braces in place by frictional contact alone and permitting them to be easily and rapidly adjusted.
  • the washers h h are each provided with a slot, into which the enlarged portion of the rod or bar takes,thereby permitting the washer h to ride over the same and bearfirmly against its braces.
  • the inner ends of the rods or bars 9 of the clamping devices are exteriorly screw-threaded in reverse directions, and these bars are coupled by an intermediate sleeve, H, which is provided with right and left hand screwthreads on its inner wall, and into which the ends of the rods are screwed.
  • H intermediate sleeve
  • the rods or bars of the clamping devices can be extended or shortened at will to adapt the device to chairs of different widths, and to permit the ready adaptation ofthe devices to the chairs, and that the devices are connected together by the coupling-sleeve, so that an. endwise movement is imparted to the rodswhen only one of the hand-wheels is turned, to thereby draw the enlarged portion of the other clamping device upon the other brace.
  • each clamping device can be independently operated to clamp the braces,while at the same time but one of the hand-wheels need be rotated tosimultaneonsly clamp its brace and draw the rod or bar of the other clamping device inwardly upon its brace and clamp the same, as will be understood.
  • This adj Listing-sleeve performs another and more important function. By turning the sleeve the ends of the rods or bars 9 are drawn gradually together until the inner side of the slot 9' is just flush or even with the outside of the washer b. When adjusted in this way, the clamping device will work to perfection.
  • each spring is formed of a single piece of spring'wire, and at its middle it is coiled upon itself, as at '5, while the ends are provided with loops or eyes i.
  • the upper end of each spring is fitted in a recess or slot, 1?, formed in the lower side of the arm and out of line with the other recess, (1, therein, the other end of the spring being pivoted to the same, as at 2*.
  • the eye at the lower end of the spring is fitted over a collar or boss, 9', formed on a wear-plate or washer, J, and this washer is held in place by a screw, which is passed through the same and its boss into the base, the head of the screw being greater in diameter than the boss to confine the lower end of the spring.
  • This washer and its boss serve as a very secure connection for the spring to the base, and at the same time they serve to throw the lower and coiled portion of the spring out of the line of movement of the back, so that the spring will not be damaged by or even come in contact with the back.
  • springs are of sufficient strength to instantly return the back of the chair to its normal position when partially relieved of the weight of the occupant, and the occupant can rock back and forth in the chairby alternately pressing against the back, which will conr press the springs, and then by partially raising or lifting his person, so as to relieve the back of part of the weight, the springs will serve to return the back, which is due to the recoil action of the same.
  • K designates a check or stop intermediate of the base and the oscillating seat thereon.
  • These check-plates are arranged within the seat and its base in rear of the springs C, and they are loosely connected to the base and seat, to permit the latter to have a limited oscillating or rocking movement 011 the base and pre vent it from slipping and becoming displaced thereon.
  • the upper ends of the checkplates are pivoted to the rockers of the oscillating seat, while in the lower ends of the said plates r p IO:
  • a threaded eyebolt, R is litted in an aperture in one of the sides of the base, with the eye on its inner side of the latter and the threaded end projecting beyond the base.
  • a hand or clamping wheel, r having a threaded boss, is fitted on the threaded extended end of the eyebolt, and a washer, i", is also fitted on the bolt and between the boss of the binding-wheel and the outer face of the base, to prevent the boss from defacing the base.
  • a link, R is pivoted at its upper end to the inner side of one of the rockers of the oscillating seat and passes at its free end through the eye of the bolt, and this link is tapered longitudinally, so that its free end is ofgreater thickness than its pivoted end.
  • L designates the foot-rest or ottoman, which is detachably and adjustably connected to the seat at the end opposite to the back.
  • This foot-rest comprises a frame, which is suitably upholstered and finished, and to opposite sides of the frame at one end thereof are connected extensible plates Z, that are provided with hooks Z, that are adapted to take over headed studs or screws Z on the seat, and thus detachably connect the foot-rest to the seat.
  • extensible plates Z that are provided with hooks Z, that are adapted to take over headed studs or screws Z on the seat, and thus detachably connect the foot-rest to the seat.
  • longitudinal recesses or slots m In the lower edges of opposite sides of the frame of the foot-rest are formed longitudinal recesses or slots m, and lateral openings m m are also formed in the said sides of the frame, near the ends of the recesses therein.
  • Folding rack bars M are adapted to be housed or inclined within these recesses, so as to be entirely concealed from view.
  • These rack-bars are made in two sections, M M, which are pivoted together by a cross or tie bar, a, so that one end of the section M will overlap the corresponding end of the other
  • the sec-v sections M of each rack bar are pivoted within one end of one of the longitudinal recesses of the frame of the foot-rest, while in the lower edge of the other section of the rackbar is formed a series of notches, into which fixed pins on the base A are adapted to take to prevent the foot-rest from dropping when in use.
  • the rack-bars thereof are extended so that the sections are in line with each other, after which sliding sleeves N are adjusted over the joint between the sections to prevent the rack-bars from collapsing.
  • the extensible plates are then connected to the fixed studs on the seat, and the rack-bars are connected to the studs of the base, the footrest being elevated or depressed to the desired position and held in place by the rack-bars.
  • the footrest is further provided with folding legs 0, preferably four in number, which are connected thereto by hinges P, (shown in detail in Fig. 8,) which permit the legs to have a sliding movement in addition to the usual swinging movement.
  • hinges P are each made in two leaves or sections, and one. leaf has two aligned ears, 0, which are spaced apart a distance considerably greater than the width of the single ear 0.of the other leaf or section, so as to permit the ear 0 to slide back and forth between the ears 0 on the pintle 0 connecting the two leaves or sections.
  • each leg of the foot-rest is capable of a compound movement-an independent swinging and sliding movement on the pintle of the hinge.
  • Each leg is further provided or formed with a shoulder, 19, on one side thereof, adjoining one side of the frame, and this shoulder is adapted to fit or take beneath the edge of the frame after the leg has been turned to a vertical position and adjusted laterally on the pintle of the hinge, the shoulder thus preventing theleg. from collapsing.
  • the legs on opposite sides of the foot-res are adapted to fold inwardly toward each other, so that their inner ends overlap, and they are held in this position by means of a suitable catch, 1)", which preferably comprises a swinging plate that is pivoted to the frame of the foot-rest, one of these catches being provided for each pair of the legs.
  • the rack-bars When the device is adapted for service in connection with the seat to form a reclining chair or cot, the rack-bars are extended and the legs are folded in the manner hereinbefore referred to; but when the foot-rest is detached from the seat the legs are unfolded by releasing the catches 19 so that the legs will swing down, and they can then be moved on the pintles of the hinge to adj ust the shoulders thereof beneath the frame of the foot-rest, and the rackbars are folded together and housed within the recesses of the frame.
  • the foot-rest is adapted for service as a footstool or ottoman, and to prevent the legs from sliding when the stool is pushed over the floor, and thereby accidentally displace the shoulders thereof,
  • I provide a 'detent, Q, which is thrown into position in rear of the leg, said detent consisting of a pivoted plate or button, as shown in Figs. 5 and (3, a spring, or other suitable device.
  • my invention is as follows: To use the device as an ordinary chair, the back is turned to its normal upright position and the clamping devices operated to hold the braces in place against movement, when the back will become fixed to the seat, and the latter can be oscillated or rocked back and forth on the base without hinderance, the coiled springs B and the return springs serving to assist the operator in rocking.
  • the occupant seated in the chair can lower the hack thereof to any desired incli nation or position by merely loosening the hand-wheels of one or both of the clamping devices and leaning against the back, so as to throw the weight thereon, thereby drawing the arms and links rearwardly and pushing the braces through the clamping devices, the weight on the back serving to force the braces into and through the clamping devices as rapidly as the hand-wheelsare turned, thereby giving the operator complete control of the device and insuring entire safety in lowering himsel f, it being understood thatthe holding device R has first been operated to hold the seat against movement on the base.
  • the holding device B is first adjusted to prevent the seat from oscillation
  • the foot-rest is connected to the seat and adjusted to the desired elevation or inclination, after which the rack-bars are connected to the pins of the base to prevent the foot-rest from dropping, and the back is then adjusted either at an inclination to or in line with the seat, as may be preferred, in the manner hereinbefore described, and the clamping devices are then operated to prevent the back from being elevated by thereturn-springs.
  • the back 'bars are disconnected from the seat and base of the chair, and the rack-bars are folded upon themselves.
  • the sliding sleeves on the rackbars are forced toward pivoted ends of the sections M, which are first housed within the recesses of the frame, so that the tie-bar rests in the openings at and the sleeves in the openings W, and the notched ends of the sections M are then fitted over the pins or studs 12, while their free ends are pressed down flush with the sections M, after which the sleeves are adjusted to prevent said free ends from dropping.
  • the rack-bars are thus compactly folded and concealed within the recesses of the foot-rest, and the legs of the latter are unfolded and locked into operative position, so that they will not collapse under the weight of a person seated thereon.
  • the device is shown adjusted for service as a reclining rocking-chair in Fig. t of the drawings, in which position the back is adjusted at the desired angle and held by the coupled clamping devices against changing its relative position to the seat, while the foot-rest is adjusted to the required angle at the opposite end of the seat.
  • the clamping device R is released to permit the seat to rock back and forth on the base, and with it the back and foot-rest, without danger to the occupant.
  • each rackbar can be folded up against the other sections thereof, and the rack-bars then dropped to the floor to support the foot-rest in its proper po sition, as indicated in dotted lines in Fig. 4.
  • the convertible foot-rest and ottoman detachably connected directly to the seat, and adjustable bars connecting the opposite end of the foot-rest to the base, and folding legs connected to the foot-rest,whereby when the footrest is to be used as an ottoman it can be detached from the seat and-base, the adjustable bars folded within the frame of the foot-rest, and the hinged legs let down to support the ottoman, and when used as a foot-rest the legs are folded within the ottoman-frame, the adjustable bars are let down, and connection is.
  • the herein-described combined ottoman and foot-rest comprising a frame suitably covered or upholstered and provided with devices for detachably connecting the frame to a chair to form afootrest, aseries of legs connected to the frame by hinges P, one leaf of which is secured to the frame and the other leaf is secured to the legs, one leaf of the hinge sliding on the other, so as to give both a sliding and a swinging movement to the legs,sa1d legs being provided with shoulders to engage the frame of the foot rest when the article is employed as an ottoman, and the folding bars, also connected to the foot-rest frame, said bars to connect with the chair when the article is to be used as a foot-rest, as set forth.
  • the foot-rest having the longitudinal recesses and the lateral openings at, and thefolding rack-bars pivoted at one end of the footrest, and connected by an intermediate tie-bar to fit in the lateral openings, as and for the purpose described.
  • a foot-rest having the folding legs 0 hiuged thereto and provided with the shoulders p, the hinges P, permitting the legs to havealateral movementindependently of their swinging movement, and the buttons Q and stops P, for locking the legs in a vertical position, substantially as described.
  • the foot-rest L having the recessed legs O independently hinged inside thereof and adapted to slide on the hinge-pintles, to engage the frame of the foot-rest when the legs are supported in their vertical positions, each pair of legs being adapted to fold compactly within the body of the rest and overlap one another, and the locking device 1)", to hold the legs against movement when folded, as set forth.

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  • General Health & Medical Sciences (AREA)
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Description

(No Model.) 3 SheetsSheet 1 P. 0: LEWIS.
, CONVERTIBLE CHAIR AND GOT.
-No. 386,142. Patented July 1'7, 1888.
N PETERS. Phulwl'flhographcr. wanhinginn. D C.
(No Model.) 3 Sheets-Sheet 2.
P. O. LEWIS.
CONVERTIBLE CHAIR AND GOT.
No. 386,142. Patented July 17, 1888.
(No Model.) 3 Sheets-Sheet 3.
P. G. LEWIS.
CONVERTIBLE CHAIR AND 001?.
No. 386,142. Patented July 17, 1888.
UNTTne STATES PATENT @TTTQE.
PEARL 0. LFAVIS, OF CATSKILIJ, NE\V YORK.
CONVERTIBLE CHAIR AND COT.
SPECIFICATION forming part of Letters Patent No. 386,142, dated July 1'7, 1888.
(No model.)
To all whom it may concern:
Be it known that I, PEARL 0. Lnwrs, a citizen of the United States, residing at Catskill, in the county ofGrecnc and State of New York, have invented a new and useful Improvement in Convertible Chairs and (lots, of which the following is a specification.
Myinvention relates to improvements in that class of convertible chairs and cots shown in a prior application filed by me on November 30, 1886, Serial No. 220,292; and it consists of the peculiar combination ofdevices and novel construction and arrangement ofthe various parts for service, as will be hereinafter fully described, and particularly pointed out in the claims.
The primary object of my invention is-to provide a convertible chair and cot with mechanism for lowering the back at a very slow rate and with entire safety, which is very desirable with invalids to avoid alarming them, and which will retain or hold the back in any desirable position.
In the majority of chairs of this class it is usual to provide pivoted links connected with the arms and independent clamping devices on the base for holding the links in place; but it frequently happens that but one ofthese clamping devices is tightened on the links when the back is adjusted, so that when the occupant leans against the back the pivots of the latter and other parts of the chair are umlulystrained and wrenched, thereby weakening the chair very materially. I11 my improved mechanism I obviate this very serious objection by connecting the clampingdeviccs, so that when eitherdevice is tightened the connecting mech anism draws upon the other untightened de vice, and both devices are thereby simultaneously operated to brace the back to an equal degree on both sides of the chair.
A further object of my invention is to provide the chair with springs connected to the arms and base for returning the back to its normal position, so that when the weight of the occupant is taken off the back the springs will elevate the back to its proper position, which may b either a vertical or an inclined one, as may llCdOSll't'tl. These return-springs are of sufficient stren th to elevate the back, which is pivoted to the seat and capable of a swinging movementthereon, so that the occupant of the chair can swing back and forth therein.
A further object of my invention is to provide a foot-rest with legs which are capable of a folding movement, so that when they are opened they adapt the foot-rest for service as an ottoman,which can be placed at any suitable point; and a further object is to provide the foot-rest with means wherein a pair of folding rackbars can be compactly folded and entirely concealed from view.
In the accompanying drawings, which illustrate a convertible chair and cot embodying my present invention, Figure 1 is a side elevation showing my invention adjusted for service as a cot. Fig. 2 is a top plan view of the same. Fig. 3 is a vertical sectional view through the same. Fig. 4 is a side elevation of the device adjusted for service as a chair. Fig. 5 is a vertical transverse sectional view on the line 00 a" of Fig. 4. Fig. (3 is a detached perspective View of the foot-rest in an inverted position, showing one of the legs thereof unfolded. Fig. 7 is a vertical sectional view through the foot-rest on the line 3 y of Fig. 6, with the rack bars folded within recesses in the sides of the frame thereon, and with the legs unfolded to adapt the device for service as an ottoman. Fig.8 is a detail View. Fig. 9 represents detail perspective views of parts of the clamping mechanism. Fig. 10 represents detail perspective views of parts of the coupling for the seat and frame. Fig. 11 is an enlarged sectional elevation of the regulating elampsiu connection with the chairbase. Fig. 12 is an enlarged detail view to show more clearly thepivotal connection between the rackbars that support the foot-rest.
Referring to the drawings, in which like letters of reference denote corresponding parts in all the figures, A designates the base of a convertible chair and cot embodying my present invention, and A the oscillating or rocking seat, which is mounted on and connected to the base in the manner which I will now proceed to describe.
The coupling or connection B has a baseplate, I), which is affixed to the base, and with this base-plate is cast a post or standard, I); or it may be made separate from the plate and secured thereto in any suitable manner. The post or standard is fitted in thelower end ofa a seam movable socket, b, which is made hollow to receive the post, and the socket is flared at its lower end, so as to permit the said end to move freely over the upper end of the post when the seat A is oscillated, to which seat, the socket is connected. A plate, 1)", is rigidly affixed to the lower side of the oscillating seat and has a countersunk or recessed portion at or near its middle, into which the upper closed end of the socket b is fitted, the socket and the fixed seat plate being pivotally connected together bya pin or bolt, which passes through the socket and seat-plate, as shown.
The fixed'post or standard I) is provided with a longitudinal slot, b, and through this slot passesabolt, b which is fixed in the socket.
I), to thereby connect the socket and post together, and at the same time permit the socket to move vertically very freely.
O are the coiled springs,whieh are arranged between the base and the oscillating seat and on opposite sides of the coupling B. These springs are each formed of a single piece of elastic or spring wire of considerable tensile strength, and they are bent upon themselves to form the coilsc, the free ends of the springs being bent to form the prongs a, one of which is fitted in an openinginthebase and theother in the seat, to thereby hold the springs from displacement.
It will be seen that thecoupling B permits the seat to have a limited vertical movement, and at the same time an oscillating movement, with the pin or bolt of the socket and seat plate as a center, and that the coiled springs O normallyhold and retain the seat in its horizontal elevated position, as the tension of the springs is about equal. Thusavertical spring action is imparted to the seat when a person seats himself therein, as the tendency of the seat is todescend under the weight of the person and compress the springs, which insures an easy and resilient movement to the seat, and at the same time the occupant can rock himself back and forth in the same, in which event the springs assist the motion of the seat, as during-the rearward movement of the seat the front spring is distended and the rear one contracted, and vice versa.
If desired, a coiled spring, 0, (indicated'in full lines in Fig.4c of the drawings,)may be fitted over the post, to prevent the socket from descending too far under the weight of alarge heavy person in the chair.
By providing my improved socket-coupling between the base and the oscillating seat I entirely dispense with the use of rockers, and at the same time provide a rocking seat which cannot become accidentally displaced on the base.
It will be noticed, further, that the springs are compressed according to the weight of the person in the chair. Thus, for instance, if a child is seated therein, the springs will be compressed but slightly, and an easy motion is insured thereto; and if a heavy person is seated therein the springs will of course be compressed to a greater extent, and be thereby rendered stronger and stiffer to resist any further weight, and also insure an easy resili- 7r,
stered and finished at a much less cost,al though 3 it can be upholstered in the ordinary manner, if desired.
' D are the arms, which are arranged on opposite sides of the seat and back, and one end ofeach of said arms is pivoted to the back 0 3 at an intermediate point of its length, while to the other ends of the arms are pivoted the upper ends of links E, connected to the oscillating seat. The outer ends of the arms D are provided with recessed portions d, formed in their lower sides, the rear wall of which is gradually inclined toward the lower edge of the arm, while the front wall is comparatively abrupt, and in this recess is fitted and pivoted the upper end of the link E.
It will be seen that when the back 0 is lowered the arms will be carried rearwardly therewith, and that the links will be free to ride or move in the recesses of the arms, and
thereby permit the arms and links to fold 10c compactly and-be wholly out of the way when the device is adjusted for service as a cot.
F are the braces, which are pivoted at their upper ends to the links E at an intermediate point of the length of the latter, said braces [0 being arranged in inclined positions on oppo-. site sides of the seat and base. The lower ends of these braces are passed through and held in their various adjusted positions by clamping devices G, which are connected by {[0 an intermediate device for simultaneous operation, so that when only one of the handwheels of the clamping devices is operatedboth of the devices will be caused to bind on the braces and hold the latter against move- :1
ment.
Each of the clamping devices has a rod or bar, 9, which is passed horizontally through an opening in the side of the seat A, and the outer ends of the rods are formed with en- 12o larged portions, through which are formed eyes or openings 9, which are of a size to permit the braces to pass freely therethrough. These enlarged apertured portions of the rods are arranged .eXteriorly to the seat, and the lower free ends of the braces are fitted in and passed through the eyes or apertures of the said rods, to be clamped in place therein by the hand-wheels G, washers h h being interposed between the enlarged portion of the rod, the 1 0 hand-wheel, and the seat of the chair.
The rods or bars gareprovided with threaded extensions h on the outer side of the enlarged eyed portion thereof, and on these threaded extensions are fitted the washers h and the hand-wheels. The handwheels are each provided with a threaded boss, If, which works on the threaded extension and bears against the washer h, to cause the latter to bind on one of the braces, which is in turn pressed against the inner side of the eye in the rod, thereby holding the braces in place by frictional contact alone and permitting them to be easily and rapidly adjusted.
The washers h h are each provided with a slot, into which the enlarged portion of the rod or bar takes,thereby permitting the washer h to ride over the same and bearfirmly against its braces. The washers hare fitted on the rods 9 of the clamping devices to bearon the outer sides of the seat-frame, and these washers have elliptical openings h, to permit the enlarged portion of the rods to play freely therethrough in adjusting the clamping devices.
The inner ends of the rods or bars 9 of the clamping devices are exteriorly screw-threaded in reverse directions, and these bars are coupled by an intermediate sleeve, H, which is provided with right and left hand screwthreads on its inner wall, and into which the ends of the rods are screwed. It will thus be seen that the rods or bars of the clamping devices can be extended or shortened at will to adapt the device to chairs of different widths, and to permit the ready adaptation ofthe devices to the chairs, and that the devices are connected together by the coupling-sleeve, so that an. endwise movement is imparted to the rodswhen only one of the hand-wheels is turned, to thereby draw the enlarged portion of the other clamping device upon the other brace. The hand-wheel of each clamping device can be independently operated to clamp the braces,while at the same time but one of the hand-wheels need be rotated tosimultaneonsly clamp its brace and draw the rod or bar of the other clamping device inwardly upon its brace and clamp the same, as will be understood. This adj Listing-sleeve performs another and more important function. By turning the sleeve the ends of the rods or bars 9 are drawn gradually together until the inner side of the slot 9' is just flush or even with the outside of the washer b. When adjusted in this way, the clamping device will work to perfection. Of course, if the adjustment is not exactly right and is left a little too long, for instance, it will be seen that when the wheel on the right-hand side is tightened the slotted shoulder 9 would be drawn into the washer h on that side and bind it securely; but from the fact that I did not adjust it or make it short enough underneath the chair the shoulder g on the opposite side would not be drawn into the washer h,- consequently that side of the chair would not be bound at all. The braces are made wedge-shaped, or, in other words, they are tapered longitudinally, and on this form of my invention ll lay special stress.
In order to prevent the braces from slipping in the clamping devices when they are made of uniform thickness throughout, the handwheels of the clamping devices have to be tightened to a very great degree, which is sometimes impossible with a weak person or invalid, and unless the requisite pressure is exerted by the clamping devices on the braces the latter are liable to slip through the clamping devices, and thus permit the back to fall or descend under the weight of the person. By tapering the braces from the end where they are pivoted toward their free ends this tendency of the braces to have an endwise movement is obviated, as it will be seen that they will tighten themselves in the clamping devices. Bylooseningthe hand-wheelsslowly and throwing the weight on the back the occupant can lower himself and the back of the chair very slowly and with entire safety.
I designates the return-springs, which are arranged on opposite sides of the seat, and these springs are connected at one end to the arms, and at their opposite ends to the stationary base A. Each spring is formed of a single piece of spring'wire, and at its middle it is coiled upon itself, as at '5, while the ends are provided with loops or eyes i. The upper end of each spring is fitted in a recess or slot, 1?, formed in the lower side of the arm and out of line with the other recess, (1, therein, the other end of the spring being pivoted to the same, as at 2*. The eye at the lower end of the spring is fitted over a collar or boss, 9', formed on a wear-plate or washer, J, and this washer is held in place by a screw, which is passed through the same and its boss into the base, the head of the screw being greater in diameter than the boss to confine the lower end of the spring. This washer and its boss serve as a very secure connection for the spring to the base, and at the same time they serve to throw the lower and coiled portion of the spring out of the line of movement of the back, so that the spring will not be damaged by or even come in contact with the back. These springs are of sufficient strength to instantly return the back of the chair to its normal position when partially relieved of the weight of the occupant, and the occupant can rock back and forth in the chairby alternately pressing against the back, which will conr press the springs, and then by partially raising or lifting his person, so as to relieve the back of part of the weight, the springs will serve to return the back, which is due to the recoil action of the same.
K designates a check or stop intermediate of the base and the oscillating seat thereon. These check-plates are arranged within the seat and its base in rear of the springs C, and they are loosely connected to the base and seat, to permit the latter to have a limited oscillating or rocking movement 011 the base and pre vent it from slipping and becoming displaced thereon. The upper ends of the checkplates are pivoted to the rockers of the oscillating seat, while in the lower ends of the said plates r p IO:
are formed longitudinal slots 75, through which are passed limiting pins or screws it, that are fixed in the base, as shown.
B designates the device for holding the seat against oscillation on the base when it is desired to use the device as a cot or as a reclining-chair. A threaded eyebolt, R, is litted in an aperture in one of the sides of the base, with the eye on its inner side of the latter and the threaded end projecting beyond the base. A hand or clamping wheel, r, having a threaded boss, is fitted on the threaded extended end of the eyebolt, and a washer, i", is also fitted on the bolt and between the boss of the binding-wheel and the outer face of the base, to prevent the boss from defacing the base. A link, R, is pivoted at its upper end to the inner side of one of the rockers of the oscillating seat and passes at its free end through the eye of the bolt, and this link is tapered longitudinally, so that its free end is ofgreater thickness than its pivoted end.
In order to hold the seat from oscillation on the base, it is only necessary to tighten the binding-Wheel on the threaded eyebolt and draw the latter outwardly, so that the sides of the eye therein will bind against the link, and thereby prevent the latter from end wise movement, and consequently the seat. -\Vhen it is desired to rock the seat, the hand wheel is loosened, to permit the eyebolt to be moved inwardly, and the link reciprocates freely through the eye in the boltduring the oscillations of the seat.
L designates the foot-rest or ottoman, which is detachably and adjustably connected to the seat at the end opposite to the back. This foot-rest comprises a frame, which is suitably upholstered and finished, and to opposite sides of the frame at one end thereof are connected extensible plates Z, that are provided with hooks Z, that are adapted to take over headed studs or screws Z on the seat, and thus detachably connect the foot-rest to the seat. In the lower edges of opposite sides of the frame of the foot-rest are formed longitudinal recesses or slots m, and lateral openings m m are also formed in the said sides of the frame, near the ends of the recesses therein.
Folding rack bars M are adapted to be housed or inclined within these recesses, so as to be entirely concealed from view. These rack-bars are made in two sections, M M, which are pivoted together by a cross or tie bar, a, so that one end of the section M will overlap the corresponding end of the other The sec-v sections M of each rack bar are pivoted within one end of one of the longitudinal recesses of the frame of the foot-rest, while in the lower edge of the other section of the rackbar is formed a series of notches, into which fixed pins on the base A are adapted to take to prevent the foot-rest from dropping when in use.
Vhen it is desired to use the foot-rest in connection with the chair,the rack-bars thereof are extended so that the sections are in line with each other, after which sliding sleeves N are adjusted over the joint between the sections to prevent the rack-bars from collapsing. The extensible plates; are then connected to the fixed studs on the seat, and the rack-bars are connected to the studs of the base, the footrest being elevated or depressed to the desired position and held in place by the rack-bars.
The footrest is further provided with folding legs 0, preferably four in number, which are connected thereto by hinges P, (shown in detail in Fig. 8,) which permit the legs to have a sliding movement in addition to the usual swinging movement. These hinges are each made in two leaves or sections, and one. leaf has two aligned ears, 0, which are spaced apart a distance considerably greater than the width of the single ear 0.of the other leaf or section, so as to permit the ear 0 to slide back and forth between the ears 0 on the pintle 0 connecting the two leaves or sections. The leaf having the ear 0 is affixed to the leg of the foot-rest, and the leaf having the ears 0 are secured to the frame of the foot-rest, whereby each leg of the foot-rest is capable of a compound movement-an independent swinging and sliding movement on the pintle of the hinge. Each leg is further provided or formed with a shoulder, 19, on one side thereof, adjoining one side of the frame, and this shoulder is adapted to fit or take beneath the edge of the frame after the leg has been turned to a vertical position and adjusted laterally on the pintle of the hinge, the shoulder thus preventing theleg. from collapsing. In order to prevent the legs of the foot rest or stool from swaying when a person is seated thereon, and thereby further relieve the hinges of'strain, I
provide fixed blocks or stops P on the under side of the frame and in juxtaposition to the legs to bear against one side of the latter. These blocks serve to hold the legs from swaying, and thereby brace the same very materially, one side of the leg bearing against one side of the frame, while the fixed block bears against the other side of the leg.
The legs on opposite sides of the foot-res are adapted to fold inwardly toward each other, so that their inner ends overlap, and they are held in this position by means of a suitable catch, 1)", which preferably comprises a swinging plate that is pivoted to the frame of the foot-rest, one of these catches being provided for each pair of the legs.
When the device is adapted for service in connection with the seat to form a reclining chair or cot, the rack-bars are extended and the legs are folded in the manner hereinbefore referred to; but when the foot-rest is detached from the seat the legs are unfolded by releasing the catches 19 so that the legs will swing down, and they can then be moved on the pintles of the hinge to adj ust the shoulders thereof beneath the frame of the foot-rest, and the rackbars are folded together and housed within the recesses of the frame. XVhen in this position, the foot-rest is adapted for service as a footstool or ottoman, and to prevent the legs from sliding when the stool is pushed over the floor, and thereby accidentally displace the shoulders thereof, I provide a 'detent, Q, which is thrown into position in rear of the leg, said detent consisting of a pivoted plate or button, as shown in Figs. 5 and (3, a spring, or other suitable device.
The operation of my invention is as follows: To use the device as an ordinary chair, the back is turned to its normal upright position and the clamping devices operated to hold the braces in place against movement, when the back will become fixed to the seat, and the latter can be oscillated or rocked back and forth on the base without hinderance, the coiled springs B and the return springs serving to assist the operator in rocking. The occupant seated in the chair can lower the hack thereof to any desired incli nation or position by merely loosening the hand-wheels of one or both of the clamping devices and leaning against the back, so as to throw the weight thereon, thereby drawing the arms and links rearwardly and pushing the braces through the clamping devices, the weight on the back serving to force the braces into and through the clamping devices as rapidly as the hand-wheelsare turned, thereby giving the operator complete control of the device and insuring entire safety in lowering himsel f, it being understood thatthe holding device R has first been operated to hold the seat against movement on the base.
To adapt t e device for service as areclining chair or e t, the holding device B is first adjusted to prevent the seat from oscillation,
and the foot-rest is connected to the seat and adjusted to the desired elevation or inclination, after which the rack-bars are connected to the pins of the base to prevent the foot-rest from dropping, and the back is then adjusted either at an inclination to or in line with the seat, as may be preferred, in the manner hereinbefore described, and the clamping devices are then operated to prevent the back from being elevated by thereturn-springs. To retu rn the back 'bars are disconnected from the seat and base of the chair, and the rack-bars are folded upon themselves. The sliding sleeves on the rackbars are forced toward pivoted ends of the sections M, which are first housed within the recesses of the frame, so that the tie-bar rests in the openings at and the sleeves in the openings W, and the notched ends of the sections M are then fitted over the pins or studs 12, while their free ends are pressed down flush with the sections M, after which the sleeves are adjusted to prevent said free ends from dropping. The rack-bars are thus compactly folded and concealed within the recesses of the foot-rest, and the legs of the latter are unfolded and locked into operative position, so that they will not collapse under the weight of a person seated thereon.
The device is shown adjusted for service as a reclining rocking-chair in Fig. t of the drawings, in which position the back is adjusted at the desired angle and held by the coupled clamping devices against changing its relative position to the seat, while the foot-rest is adjusted to the required angle at the opposite end of the seat. After the occupant has taken position in the chair and the parts of the latter are properly adjusted for his comfort, the clamping device R is released to permit the seat to rock back and forth on the base, and with it the back and foot-rest, without danger to the occupant. To rock the chair while in this reclining position, it is only necessary for the occupant to press with his feet upon the foot-rest, and thus throw the weight into the back of the chair, which will thereby cause the seat to rock in one direction on the base, and the pressure on the foot rcst is then released, and thereby permit the return-springs to react and elevate the back and the occupant of the chair to thus rock the seat and the parts connected thereto in the reverse direction. The occupant can thus very freely and readily rock himself in the chair while in a reclining position with entire safety and a minimum of effort.
If desired, one of the sections of each rackbar can be folded up against the other sections thereof, and the rack-bars then dropped to the floor to support the foot-rest in its proper po sition, as indicated in dotted lines in Fig. 4.
XVhile Idcem the mechanism herein shown and described as best adapted for carrying my invention into practice, I would not desire to confine myself to the exact form and proportions of parts and details of construction, as I am aware that changes may be made without departing from the spirit of my invention.
Having thus described my invention, what I claim as new is- 1. The combination, with a stationary base, of an oscillating seat mounted thereon and supported above the same, a back pivotally connected to the same, the arms pivoted to both the seat and the back, and also pivoted together, and the return-springs arranged on opposite sides of the seat and connected to the base and the arms, as and for the purpose described.
2. The combination of a base, anoscillating seat mounted thereon, the arms D and links E, an adjustable back pivoted to the free ends of the arms and the seat, and the return-springs pivotally connected to the base and the arms at an intermediate point of the same, as and for the purpose described.
3. In a reclining-chair, the combination, with an adjustable back and the arms, of the coupled clamping devices and the wedgeshaped braces pivoted to the arms and passing through the clamping devices, the braces being tapered from their point of connection with the arms toward their free ends, as and for the purpose set forth.
4. In a reclining-chair, the combination, with the adjustable back and the arms, of a pair of clamping devices and the longitudinally-tapered braces pivoted to the arms and passing through the clamping devices, as and for the purpose described.
5. In a reclining-chair, the combination, with the adjustable back and the arms, of the tapered braces pivoted to the arms and the clamping devices, each having the coupled rods provided with eyes for the passage of the braces, and thebinding-wheels, as and for the purpose described.
6. In a reclining-chair, the combination, with an adjustable back and the arms connected to the back and the seat by intermediate links, of the tapered braces pivoted to the links, and clamping devices having the rods thereof coupled together, and each provided with the eye and the threaded extension, the slotted washers, and the bindingwheels fitted on the threaded extension,as and for thepnrpose described.
7. In a chair of the class described,the combination, with the adjustable back and arms, of the braces, and the clamping devices for the braces, having the oppositely-threaded rods, and the threaded coupling-sleeve into which the rods are screwed, as and for the purpose set forth.
8. In combination with the base, the seat, the convertible foot-rest and ottoman detachably connected directly to the seat, and adjustable bars connecting the opposite end of the foot-rest to the base, and folding legs connected to the foot-rest,whereby when the footrest is to be used as an ottoman it can be detached from the seat and-base, the adjustable bars folded within the frame of the foot-rest, and the hinged legs let down to support the ottoman, and when used as a foot-rest the legs are folded within the ottoman-frame, the adjustable bars are let down, and connection is.
made between the foot-rest frame and the base and seat, as set forth.
9. The herein-described combined ottoman and foot-rest, comprising a frame suitably covered or upholstered and provided with devices for detachably connecting the frame to a chair to form afootrest, aseries of legs connected to the frame by hinges P, one leaf of which is secured to the frame and the other leaf is secured to the legs, one leaf of the hinge sliding on the other, so as to give both a sliding and a swinging movement to the legs,sa1d legs being provided with shoulders to engage the frame of the foot rest when the article is employed as an ottoman, and the folding bars, also connected to the foot-rest frame, said bars to connect with the chair when the article is to be used as a foot-rest, as set forth.
10. The foot-rest having the longitudinal recesses and the lateral openings at, and thefolding rack-bars pivoted at one end of the footrest, and connected by an intermediate tie-bar to fit in the lateral openings, as and for the purpose described.
11. A foot-rest having the folding legs 0 hiuged thereto and provided with the shoulders p, the hinges P, permitting the legs to havealateral movementindependently of their swinging movement, and the buttons Q and stops P, for locking the legs in a vertical position, substantially as described.
12. The foot-rest L, having the recessed legs O independently hinged inside thereof and adapted to slide on the hinge-pintles, to engage the frame of the foot-rest when the legs are supported in their vertical positions, each pair of legs being adapted to fold compactly within the body of the rest and overlap one another, and the locking device 1)", to hold the legs against movement when folded, as set forth.
13. The combination, with the foot-rest or ottoman L, the hinges P, adapted to have a sliding movement, having one leaf attached to the foot-rest, and the legs 0, having the other leaf of the hinge connected thereto, whereby the said legs are independently hinged inside the foot-rest, the leaf of the hinge that is attached to the legs sliding on the pintle of the leaf that is secured to the foot-rest frame, whereby the legs are given both a sliding and a swinging movement, the shoulders on the legs engaging the frame of the foot-rest to lock the legs in position, as set forth.
14. The combination, with the foot-rest or ottoman L, the shouldered legs, and the hinges P, for independently hinging the legs inside the foot-rest, the said hinges having one leaf secured to the foot-rest and the other leaf secured to the legs, said hinge-leaves sliding upon the pintles, and also having a swinging movement, whereby the legs are given both a sliding and swinging movement, the shouldered portion of the legs engaging the footrest frame, and the stops for locking the legs pivoted to the seat and fitted in the eye of the and when the pressure of the foot is relieved bolt, as and for the purpose described. the return-springs are caused to react to bring 17, In combination with the stationary base, the back and the seat to the former position, 1
an oscillating seat mounted thereon, a back i as set forth.
pivotally connected to the seat the returnl In testimony thatIelaim the foregoing as my springs I, connected to the base and acting on own I have hereto affixed mysignature in presthe back, and the foot-rest L, connected to the ence of three witnesses. seat, whereby the oecu pant can rock the chair while in a reclining position by pressing the foot upon the outer end of the foot-rest, and thus throwing his weight into the back of the chair, causing the seat to rock in one direction,
PEARL 0. LEWIS. \Vitnesses:
E. G. SIGGERs, \VM. W. MOORE, H. J. ENNIS.
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2535138A (en) * 1945-03-12 1950-12-26 Dorothy K S Johnson Resiliently supported reclining chair
US2618318A (en) * 1949-06-15 1952-11-18 Matilda D Welsh Seat for baby furniture
US3537674A (en) * 1967-11-06 1970-11-03 Gen Motors Corp Adjustable vehicle seat
US4889385A (en) * 1988-03-09 1989-12-26 American Seating Company Chair seat-and-back support
US10021984B2 (en) 2015-04-13 2018-07-17 Steelcase Inc. Seating arrangement
US10194750B2 (en) 2015-04-13 2019-02-05 Steelcase Inc. Seating arrangement
US10966527B2 (en) 2017-06-09 2021-04-06 Steelcase Inc. Seating arrangement and method of construction
US11259637B2 (en) 2015-04-13 2022-03-01 Steelcase Inc. Seating arrangement

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2535138A (en) * 1945-03-12 1950-12-26 Dorothy K S Johnson Resiliently supported reclining chair
US2618318A (en) * 1949-06-15 1952-11-18 Matilda D Welsh Seat for baby furniture
US3537674A (en) * 1967-11-06 1970-11-03 Gen Motors Corp Adjustable vehicle seat
US4889385A (en) * 1988-03-09 1989-12-26 American Seating Company Chair seat-and-back support
US10575648B2 (en) 2015-04-13 2020-03-03 Steelcase Inc. Seating arrangement
US10194750B2 (en) 2015-04-13 2019-02-05 Steelcase Inc. Seating arrangement
US10021984B2 (en) 2015-04-13 2018-07-17 Steelcase Inc. Seating arrangement
US11096497B2 (en) 2015-04-13 2021-08-24 Steelcase Inc. Seating arrangement
US11259637B2 (en) 2015-04-13 2022-03-01 Steelcase Inc. Seating arrangement
US11324325B2 (en) 2015-04-13 2022-05-10 Steelcase Inc. Seating arrangement
US11553797B2 (en) 2015-04-13 2023-01-17 Steelcase Inc. Seating arrangement
US11963621B2 (en) 2015-04-13 2024-04-23 Steelcase Inc. Seating arrangement
US10966527B2 (en) 2017-06-09 2021-04-06 Steelcase Inc. Seating arrangement and method of construction
US11825955B2 (en) 2017-06-09 2023-11-28 Steelcase Inc. Seating arrangement and method of construction

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