US1151731A - Suction carpet-sweeper. - Google Patents

Description

To all whom it may concern .Teams M. sPivGLnfa, or CANTON, onze, Assrenon ro THE HOOVER. suorron swnnnnn COMPANY, OF New ennarn, Ome, A CORPORATION or Onro.

sUcTIoiv onnrnr-swsnrna.

Speccation of Letters Patent.

Patented. Aug. 31, 1915.

Beit known that I, JAMEs'M. SrAivGLER, a citizen oi' the United States, reslding at Canton,.in the county of Stark and State oi' Ohio, have invented anew and useful Suction Carpet-Sweeper, of which the following is a specification. l

This invention relates to improvements 1n carpet sweepers provided with means for producing a suction or strong lnrusn of air into' the device, which inrush of air operates in conjunction with the brush lfor the purpose of brushing and pneumatically .clean ing floors and 'licor coverings and similar surfaces.

The objects of this invention areto generally improve devices of the character mentioned and to provide a construction which wilA be composed of few and simple parts put together in a practical, mechanical p manner, the various parts being so exactly and peculiarly adapted to each other that they combine to reduce a very superior, substantial and efiicient carpet sweeper.

Onev of the important Objects of the in vention is to provide a brush and brush adjustment in oombipation with a h driving wheel and sweeperv supporting adJustment for the purposeof regulating and adjusting the sweeper in accordance with the class of work which it is intended to do and to accommodate vthe natural wear of the brush.

, These objects, together with other objects apparent to those skilled in the art may be attained by the construction illustrated in the accompanaying drawings, ,although the invention may be embodied in other forms, the construction illustrated being chosen by way of example.

In the drawings Figure 1 is a perspective view of a suction carpet sweeper embodying my invention. Fig. 2 is an inside perspective view of one of the driving wheels rcmoved `from its bearing. Fig. 3 is an outside end, fragmentary elevation of one of the front corners of the device. Fig. l is a similar' View showing the driving wheel removed. Fig. 5'is a sectional View taken on the line 5-5 of Fig. 3. Fig. 6 is a view similar to Fig. 3, but with both driving wheel, wheel plate and brush hanger removed. Fig. 7 is an inner side elevation of one of the wheel plates and the brush Yhanger connected thereto. Fig. 8 is a per-. spective view oi one of the brush hangers.

Fig. 9 is a 'perspective view of the wheelplate. Fig. 10 is a perspective view of the lubricating' packing and wheel retaining screw and washer. Fig. li is a sectional view through the brush casing on the line Elddili ll-ll of Fig'G. Fig. 12 isa longitudinal i sectional view through the brush.

Throughout the several views similar reference numeralsindicate similar parts.

More specifically describing the construction illustrated in said drawings, the numeral l indicates the .main casing of the carpet sweeper within which is mounted a fan, llsuch as is well known to those sldlled in the art and which isadapted to exhaust the air from said easing into the dust bag 2,

which is connected to the outlet 3 of the casing and serves as a receptacle for the dirt and dust lifted by the device. Said fan is preferably driven by an electric motor a mounted upon the casing, the flexible conductor 5 leading through the switch 6 serving to transmit the current from any suitable source to the motor. The handle 7 4is pivotally connected to the casing 1 by means of the yoke 8 and is employed for manually moving the sweeper over the floor or surface to be cleaned. v

The forward portion of the casing 1 is provided with a brush casing 9 which eX- tends transversely and is arranged at' a somewhat lower level than the main portion of the casing l. The interior of said casing 9 is substantially cylindrical, but the .side of said casing adjacent the floor is somewhat squared olf on a lane parallel with the floor, as shown in Fig. 6, and a slotelike rush and intake opening at 10 extending parallel with the axis of cylindricity of the to accomplish its work more thoroughly and to assist said inrush of air in picking up particles which have a tendency to adhere to the surfacel being cleaned. The motor and fun portion oi: the device having been properly constructed and-adjusted by the manufacturer require little or no attention to the end of the casing 9, the slotted character of the apertures 29 and 30 permitting some rotary adjustment of the wheel plate about theJ axis of curvature of said casing 9 and the said'screws being adapted to clamp the plate to the 'fiange 14 in any desired adjustment.

For the purpose `of holding the wheel plate in proper position with reference to the axis of curvature of the casing 9 the inner side of the wheel plate is provided with integral curved .ribs 33 which engage the inner edge of the tlange 14, as clearly illustrated in Figll.

Qn the outer side of the wheel plate substantially at the center of the portion 27 is arranged the outstanding wheel stud 34 for the attachment of the driving wheel. At its free end said stud is provided with a recess 35, from which recess an oil conducting aperture 36 leads to the outer bearing surface o'f the stud. From the bottom of said recess 35 a screw threaded aperture 37 leads entirely'through the wheel plate. Y

On the inner side of each wheel plate is arranged a brush hanger, one of said hangers being illustrated in Fig. S. It will be noted that said hanger is provided with a connecting arm 38 andan adjusting head 39 'and intermediate said head and said arm an outward extending pinion housing 40 is pro-y vided. Said housing 40 is adapted to eX- tend through the aperture 28 of the wheel plate to whichthe hanger is attached and said housing is cut away at the side adjacent the arm 38. An end wall 41 forms an integral portion of said housing 40 and an aperture 42 in said wall 41 is adapted to'receive y the end of the shaft 20. Said aperture 42 may be round or elongated, at least' one of the ends of the shaft 2O being correspondingly elongated or shaped to prevent rotation of the shaft 20. A screw 43 extending through the aperture 44 in the end of the arm 38 and into ture 37 pivotally connects thebrush hanger to the wheel plate, the aXis of said pivotal connection being co-incident with the axis of the'stud 34. In the forward part of the portion 26 of the wheel plate is a slot 45 of curved form through which the screw 46 eX- tends from the outer side of the wheel plate into the scr w threaded aperture 47 in the head 39. The screw 46 being adjustable within the slot 45 permits the brush hanger to be pivotally moved upon the screw as a center so to move the pinion housing 40 up and down within the aperture 28, and said screw 46 may be drawn down firmly to hold the brush hanger in any desired adjustment within the limits of the slot From an inspection of Fig. 11 1t w1ll be noted that the pinions 25 extend into the the screw threaded aperhousing 40 and the sides of the housing 40 adjacent the arms 3S -being cut away said pinions are partially exposed upon the outer .side of the wheel plate, as clearly shown in Fig. 4.

The driving wheels are each of the form particularly illustrated in Figs. 2 and 5. It

will be noted that said wheels comprise an outer disk portion 48 provided with a peripheral inturned'iange 49 upon which is suitably mounted a rubber or other friction tire 50. On the inner side of the disk portion 48 is fiXedly mounted a pinion 51. EX- tending centrally through said pinion 51 and disk 48 is a bearing aperture 52 adapted to rotatably receive the stud 34. On the outer side of the disk 48 is a circular recess at 53 concentric with the aperture 52 and a retaining washer 54 is adapted to be rotatably arranged within said recess. A; felt or other lubricating holding packing 55 is adapted to be arranged within the recess 35 in the wheel stud and has a central aperture 56 through which the retaining screw 57 extends, as well as thrbugh the washer 54, said screw 57 being adapted to fit the screw threaded aperture 37, as illustrated in Fig.

5. The stud 34 is of suilicient length to per mit the driving wheel to freely rotate there- .95 the pinion 51 is adapted to meshwith the on when connected thereto as described, and

wheels and lwill be free to rotate in `acpordance with the direction of rotation of'said driving wheel.

.To move the casing 9 toward or from the surface to be cleaned it is only necessary'to slightly loosen the screws 31 and 32 and rotate the wheel plates about the axis of curvature of the casing 9, the ribs 33 retaining the plates in proper position regardless of their regular adjustment. In this way the driving wheels may be. raised or lowered with reference to the casing for the purpose of adjusting the intake slot with reference to the surface to be cleaned. Such adjustment of the driving wheels, however, does not necessarily alter the adjustmentfof the brush. To adjust the brush with reference with the wheel plate it is onlymecessary tjowf to hold the brush in its new adjustment. It' is' thus possible to adjust the brush and traveling wheels with relation to each other and to adjust either brush or wheels with relation to the casing 9.

Attention should be called-to the packing 55 which when thoroughly saturated with oil feeds a proper quantity of the same through the'oil aperture 36 to the externalv surface of the Wheel stud and thus' properly lubricates the driving Wheel hearing.

I claim z f l. A suction carpet sweeper comprising an elongated rotatable brush, a brush casing; therefor having on its underside a cleaningA vintake opening, said casing atthe ends provided with end walls having circular end openings adapted to pernnt endwise re- Inoval of said brush therethrough, Wheely plates connected to the ends of said v"brush casing on the outer sides of said end Walls and having inwardly disposed ribs engagi 'ing the curved edges of said end openings "ing, 'wheel plates adjustably connected to said casing, traveling wheels rotatably mounted upon said Wheel. plates, and-a rotatable brush arranged' within said easing and 'adjustably connected to said wlfieel-plates..

3. A suctioncarpet sweeper comprising a casing provided with a cleaning intale' opening, wheel plates connected tosaid casing and adapted for rotary adjustment with relation to said casing, traveling Wheels rotatably connected to said Wheel plates upon an aXiseccentric with reference to the axis of saidrotary adjustment, a rot'talolebrush arranged in said casing at said intake opening, brush hanging means pivotally con 'nected to said Wheel plates In the axis of ,said traveling wheels, said brush connected to saidr brush hanging means eccentrically With reference to the axis of said ivotal connectiomand means for operative y con Y necting said Wheels to said brush.

l 4; suction carpetsweeper comprising an elongated rotatable brush, a casing therefor provided on its underside with a cleaning intake opening, said casing open at the ends and provided at each end with an inwardly disposed, integral, complete, circular flange.

definingv a circular opening adapted to perzmit endwise'removal of said brush therethrough, wheel plates on Ithe outer sides of said flanges, closing said circularopenings, and provided on their inner sides with portions engaging the edges of said openin s to permit rotary adjustment of said p ates .about centers common with the centers of said openings, traveling Wheels rotatably mounted on the outer sides of saidwhee'l plates upon axes eccentric with reference to said centers, and said brush, having its ends extended through said Wheel plates and o eratively connected to said traveling whee s. In testimony that I claim the above, I

have hereunto ,subscribed my presence of two witnesses.

y JAMES M. SPANGLER.

Witnesses.:

WILLIAM H. MILLER, Jenn H. BISHOP.

name'in the l.

Images