US1469054A - Typewriting machine - Google Patents

Description

. C. E. SMITH TYPEWRITING MACHINE Sept. 25 1923.

Filed Feb. 21, 1922 2 Sheets-Sheet 1 WlTNESSES Q @za Sept. 25,1923.

C. E. SMITH IfYPEWRIT ING MACHI NE WITNESSES awvwtoz' /6M A 1min:

331 A) Gwen/14% W4 3M use an i a-i rice;

GHARLES'E. SMITH, OE"BR,QOKLYN, N'EKV YORK," ASSIGNOR TO REMINGTON TYPE- WBITER COMPANY, OF ILION, NEW YORK, A CORPORATION NEW YORK.

I rrvrnwnirrne MACHINE.

Application filed February 21, 1922', Serial 1%. 538,267.

To all whom it may concern:

Be it known that I, CHARLES E. SMITH, a citizen of theUnited States, and resident of the borough of Brooklyn, city of New 5 York,';in the county of Kings and State of New York, have invented certain new and 4 useful Improvements in Typewriting Machines, of which the following isa specifi' cation. r v My invention relates to typewriting machines and more particularly to means for 1, ensuring that the machine is in proper condition to be received withinfits inelosing case before the case is. closed. To the above and other ends whichwill hereinafter appear, my, invention consists in the features of construction, arrange-v ments ofv parts,and combinations of devices set forth in the followingdescription and particularly pointed out in the appended claims. y i J In the drawings, wherein like reference characters indicate corresponding parts in the different views, 1

Figure 1 is a fragmentaryvertical foreand-aft sectional view of a Remington-portable machine -embodyingrmy invention, the machine being shown collapsed and partly inclosed within its case. f

FigureQ is a like view of the machine shown expanded and the case removed.

Figure 3 is a fragmentary detail plan view, with portions broken away, of the platen shifting mechanism and some of the as 5 sociated parts. p 1 t Figure 4 is an enlarged detail fragmentary. perspective view of the automatically actuated caseshift lock-releasing device and some of the. associated parts. V v ,Iiigure 5 is a like view of the'same showing also the shift lock key depressed, and,

the parts locked in shifted position. y In all of the views I have omitted parts of the machine unnecessary to an understanding of my inventionin its embodiment therein. p a H V v .My invention relates more particularly to light portable machines and is shown in the present instance embodied in a Remington-portablemachine-which in many respects .is; like the machines shown in the following patents: A; W, Smith, 1,342,518,"

June 8, 1920; J. BLITOlden, 1,386,256, Aug. 2,1921; In the Remington-portable machine the carriage is supported against movement from its normal or lower-case position by the cover of the inclosing case when the latter is closed. This prevents the carriage fromrshifting backward and forward when the machine is being transported in its case, thus preventing injury to the machine which might result from such shifting ,of the carriage. If, however, the, operator should leave the carriage locked in its shifted position, it would interfere with and prevent the cover frombeing closed." Any forcible attempt to close the cover at this time might result in injury to the machine or to the cover, or both., a,

By my invention I overcome this difliculty and ensure the proper return of the carriage to normal position before the cover I isfclosed, and thereafter render the case shift locking means ineffective so long as the machine is" in condition to be inclosed within its casing. The act of. expanding the machine, or rendering it in condition for'use, is effective to automatically withdrawithe means by which thecase shift lock- 1 mg means are rendered ineffective, so that such locking means are again in condition for use.

Theframe of'the machine comprises an outer sheet metal frame 1 and an inner $5 sheet metal frame 2 attached to the frame 1 and by which the various working parts of the machine are supported. A series of segmentally arranged type bars 3 are mounted in guide'slots of a type bar segment 4, 99

secured to the inner frame 2 and carrying a pivot wire 5 on which the type-bars are mounted. Eachtype barhas a heel with segmentally arranged gear teeth 6, 'with V which similar teeth 7 on a companion subleverS are adapted to mesh. The sub-levers 8 are pivoted on a pivot wire 9 carried by a suitably'fixed slotted support or segment,

not shown. The forward end of each sub-' lever 8, is pivoted to a depending link 10 100 which vin turn is pivoted to a second subl ever 11- jfulcrumed at its forward end on a sheet, metal combined guide comb andfulcrum plate, designated as a whole by the reference numeral12. This plate is secured in place at its ends by screws 13and 14 that are received in tapped openings in ears 15 and 16, respectively, on the side plates of the inner frame 2. Each sub-lever 11 is connected to a depending link 17 which in turn; is connected to a keylever 18, pivoted on a pivotwire 19. The rear end of each key lever is guided by and held on its pivot by a guide comb 20 which supports the pivot wire on a fixed part of the machine,

whereas the forward end portion of each key lever extends through a guide slot 21 in the'forward guide comb 12. V

. The type bars are adapted to be turned on their pivot wire 5 from the inoperative position, shown in Fig. 1, where they remain collapsed relatively to the remainder of the machine on a fixed t 3e rest a to the 0 3era- J 7 tive position, or position of use, indicated in Fig. 2. Tnthis last mentioned position the type bars are expanded upwardly from the body of the machine, and each is in a posi tion to be moved rearwardly and clownwardly to the printing position, and to strike against the top of a platen 22, when the com panion printing key is depressed to actuate its lever 18. The hand actuated means, 0p-

erable at will and by which the type bars are turned from their inoperative position shown inFig. 1 to their operative position shown in Fig. 2, comprises a rock shaft 23 mounted atits ends in the side plates of the inner frame 2. One end portion of the shaft has -tendstransversely across the machine to points near the sides thereof. The frame 28 is formed with depending guide arms 29 that are mounted to move up and down in companion grooved guides 30, carried by the mounted Ffor vertical shifting movement from the Fig. 1fto the Fig. 2 position, and vice versa, carries a segmental pad 31 arranged beneath the type bars, and cooper,-

type barv segment 4. The frame 28 thus ative therewith to control the movements of' the type bars 2L1OllIlCllill6ll pivot toeither of the two positions shown. Each of the type bars carries a lower case type 32 and an up per case type 33, andin the Remington-portable machine a case shifting movement of the platen may be effected to bringeither set of types into use. In Figs. .1 and'2 it will be seen that a sheet metal case shift frame e),-

tends fore-and-aft of the machine and comprises side plates 84, Each of these plates is pivoted at its forward end, as at, 35, to a depending link 36, mounted on a pivot pin 37 projectinginwardly from a side plate of the frame 2, and prevented from accidental detachment from-its pivot'by a cotter pin 38.

The rear-end portion of each plate 3 1 is bent to form a horizontahy disposed flange 39,130

which is-seeured, by screws 40, a casting 41. This casting is pivoted at 4:2 to upright crank arms 43, carried by a rock shaft 14, received at its endsin bearing openings in the side plates of the frame 2. The casting carries sheet metal grooved tracks45 and46, which receive bearing rollers 47 that also coact with grooved tracks 18 and 49of a carriage bed 50 whichsupports the platen22. The entire carriage, with its platen, is thus supported to travel 'laterally overthesupport or casting {T1, and'to receive a bodily 'foreand-aft shift mg movement with the case shift frame, of which the support 41 forms a part. Suitable stops (not shown) areemployed to limit the case shifting movements of the parts, and springs .51 return the shifted parts to normal, or lower case, posit on when they are not held in the uppercase position against the force of said springs.

In the present construction, the key actuated means for controlling the case shifting movements of the, parts, comprises a case shift key lever 52'provided with akey 53 and fulcrumed on the pivot wire 19. This key lever is guided at its" forward end portion in a guide slot 54in the comb plate 12. The lever 52 is connected to an upwardly extending link55, which in turn is connected, at 56,

to abell crank lever The lever 57 is pivoted on a pin or support 58 which is carried by and projects inwardly from theleft-hand sideplate frame 2. The depending arm of the bell crank 57 extends in front of apiin 59- which projects inwardly from the left hand side plate 34: of the shift frame. The

depending arm of the bell 'cranl'r lever 51 thus transmits a rearward movement toithe shift frame and the parts carried therebywhen the shift key 53 is depressed. A shift lockkey 60 is carried by. an angular lever 61 which is pivotedat 62 to the lever 52, onthe outer side thereof. The lever 61" has a de- V pending arm which terminates in a hooklike engaging or looking member or catch63,

preferably offset slightly to theleft of the plane of the main body portion of the lever '61, as best shown in Fig. 5. The pivot 62 which unites the levers 61 and 52 is in the nature of a shouldered screw bolt, secured by a nut 64 to the ,lever 52 and forming-a pivot bearing for the. lever 61. A- spring 65 is coiled around the shank of the screw bolt and has one free end 66 thereof turnedover and bearing against the bottom edge of the lever" 61, its other free end 67 hearing against the 7 upper edge of the lever52. The force of this spring is thus exerted to return the lever .61 on its pivot62 to the Fig.1 pos tion and to normally maintain it relatively to the lever 52 in the position shown in this figure.

lug 68 formed on'and extending laterally from the lower edge of the lever 61pro eets under the lever 52, and. coacts therewith" to limit the return movement of the lever 61 relatively to the lever 52. I r

A sheet metal locking platefor member 69- is secured in front of the comb plate 12 at the left-hand end-thereof, as best shown fore-and-aft of the, machine,by forcing it rearwardly or allowing it to spring forwardly under control of the left-hand screw 14. Thus this screw is in the nature of a headed screw, the shank of which passes through an opening in the lower endportion of the member 69 and effects a fore-and-aft adjustment of the lower end of the locking member or plate 69. It will be seen that this plate is mounted to the left'ofthe slot 54 in the comb plate 12, and that its-lower engaging edge 71 extends below and forward of the lower edge ofthe comb plate. I Pres sure applied directly to the shift lock key will first. turn the lever 61 on its pivot 62 until the hook-like end 63 of said leverbears against the front faceof the plate69. Since the lever 61 can turn no further at this time, the pressure exerted onthe key 60 will carry the key lever 52 down with it until the bill of the hook reaches theedge 71 of the plate. The hook will then be forced beneath said edge, and; engaging the latter will prevent a return. movement of the lever 61,"shift' lever 52 and the parts controlled thereby; and will lock the carriage in its case shifted position. In order to release the locking lever 61 and enable the parts to return to normal position, it is merely necessary, with the parts thus far described, to depress the shift key, 53. This relieves the engaging pressure exerted by the bill of the hook against the edge 71 of the locking plate. The lever 61 being thus freed from further 7 restraint willbe returned by its spring 65 to normalposition relatively to the lever 52. This results inwithdrawing the bill .of the hook from-beneath the edge 71 of the lockingrplate, and whenpressure of the opera ators finger is released from the depressed shift key 53, the key lever 52 and the parts controlled-thereby are returned to normal position by thereturning springs 51. 1

v The Remington-portable machine is provided with a carrying caseinwhich themachine may be inclosed before-transporting it. The inclosing case includes a baseboard 72, on which the machine is fixedly secured, if

and a detachable cover 73 having arearwall 7 1.:- Rearwardly projecting fingers are securedto the baseboard and are adaptedto enter openings 76 in plates 77 secured to the backwall 76L of the cover. When the ma-. chine is collapsed, the carriage properly centered, and in normal, or lower. case position, the cover maybe alinedv withthe baseboard in the rear thereof, with the projeo' tions extending into the openings 76. The cover may thenbe given a pivotal movement on said projections resulting in swing ing the coverforward and down around the rear edge of the baseboard to inclose the machine. The rear wall 74: of the cover, as usual, is provided with contacts 78,; which in the presentinstanoe, are in the nature of rubber blocks secured to and projectinginwardly from the wall 7 4, near each side wall. These contacts are alined with the end plates 7 9 of the carriage when the latter is centered on the machine. Thepurpose of these contacts is to bear against the end plates 79 of the carriage when the cover is closed, and support the weight of the*.car-.

riage in normal. or lower case position, and i prevent the carriage from shifting from said position while the machine-is being carried 7' in the case, rear end lowermost. This pre vents the-carriage from shifting backand forth while the machine is being transported in its case, and prevents theresultant' injury to the machine that might follow from such shifting movement of the carriage, However, it will be understood, from a-conslderation of Figs. 1 and 2, that if the oper: ator should: leave the case. shifting mechas nism locked, asindicated in Fig. 2, the car-.

riage would be held in its'rearmostkshifted position, increasing. the lengthwise: dimen 'sions ofthe machine at" this point. This.

would. result in the rear ends of the. plates 79 of thecarriage being maintained in the pathof the projections 7 S on the cover,and preventvthe cover from being closedh The use of, any considerableforce .to close the cover at this time'might result in injury to the machine, or to the cover, or to both.

The featuresrthus far described were'not invented by me. The purpose of my present nvention in the main is to overcome the difiiculty pointed out above, and render it impossible to injurethe machine or its cover,

by providing automatically. operating means,

for releasing the case shift locking means preliminary vto inclosing the machine, and thereafter renderthe ease shift lock inefl'ee? tive until such time as the machine is again in condition for use. It will of course be understood. that it is necessary tocollapse the machine before itcan beinclosed in its case. In-thepresent instanceI utilize the means for collapsing the machine to auto matically effect a release of the case shift buckle 83; This enables thefparts of" the to lengthen or shorten the link.

link to beadjusted relatively to each other The for ward'end of the link 82 is pivoted at 84 to areleasing or controlling member 85,- pivoted at 86 on a sheet metal angular bracket 87,

se'curedin place by any suitable means. In

the present instance I secure the bracket in place with theaid of the left-hand screw 14 and: a nut 88. This member 85- extends through and works in the slot 541111116 comb plate 12, and has a cam face 89 and a conl the member 85 works in the slot 54, and is V to the right and beneath the key lever 52.:

tact 90; It'will be understood that this member 85 turns on its pivot in a fore-andaft plane, and'in a plane coincident with the plane of the case shift key lever 52. While supported and guided by the side walls thereof, it is nevertheless situated at a point which'is low enough to prevent it from in.

terfering withthe operation of the key lever.

52 which works inthe same slot. The plane of'the lever 61 is parallel with and to the left of the member 85, and lever 61 carries near the lower end of its depending arm a laterally projectingpin 91 extending therefrom The position of the pin 9121's such that when 7 the shift lock key ()0 is depressed and main tained looked, as indicated in Fig.2, said pin will be in front of the cam 89, and adapted to be acted on thereby when the cam carrying member is moved from the Fig. 2 to the Fig. 1 position. The effect of this movement of the cam face 89 is to effect a downward and forward camming action on the pin" 91, thereby turning the lever 61 on its pivot 62 until the bill of the hook is freed from the'edge 71 of the locking plate.

The spring 65 is then immediately effective to restore the lever 61 to the'position, it normally bears to the lever 52, and the latter being freed from further restraint will, to gether with the parts controlled thereby, re turn to normal position; Theelfectfofthis is that the carriage will move forward from the Fig. 2 position to that indicated in Fig,

. 1, and said carriage will nolonger offer an obstruction to the closing of the cover t i close the machine. 1

hen the hand controlled rock shaft 23,1

and the parts controlled thereby',-are moved from the Figg2 to the Fig; 1 position, and 7 result in automatically releasing thecase shifting locking means as stated, th emembfer 'will be retained 'in the position shown in Fig. 1 until the shaft 23 and the parts con-1 trolled thereby are againmoved to restore the machine to the condition of use,shown in Fig. 2. The member85 being thusreta-i ned in-the Fig. 1 position presents the contact face or edge thereof ina position where it will be inthepath of and coact with the pin 91, toprevent an engagement of thelocking hook of the lever 61 with the edge 71 of the locking plate. It'follows therefore that if, after the case shift lock isautomaticallyreleased in the manner stated, the operator should again depress the shift lock key 60, it willbeinefiective to lockthe ease shift mechanism, and it doesnot again become effective unti1-theme1nber85 is auto maticallywithdrawn by actuating the shaft 23 to place the machine in condition for use, j

as shownin Fig. 2. It will be observed that even ,ifYthe case shift mechanismbe not locked-in the-upper case position prior to' collapsingthe machine, there isnothing to prevent the operator from actuating the. case shift mechanism after the machine hasbeen collapsed,but before inclosing itin its case. If the case shift mechanism could be locked in its shifted position atthis time, and in the manner indicated, it would prevent the cover from being closed, notwithstanding the 'ma-' chine is collapsed. However, since the member 85 'is maintained'in the effective position so long as the machine remainscollapsed, this renders-the locking means ineffective. If therefore the operator at this time should depress the shift lock key 60, the lock would not engage, and when pressure of the opera tors finger is released from saidkey the shifted parts will return to normal position, and the cover may be closed without any injurious result. r

The adjustment of the link 82 enables me to regulate the point of release in the operation of the member 85. and to compensate for any adjustment of the lower end of'the plate 69 that maybe effected.

In the Remington-portable machine sev eral specifically different forms of case'shifting means and case shift locking means have been employed, the means shown representing' one form-of such mechanism. It should 7 be understood however that'the devices of my invention, with possible slight modification'in the construction and arrangement of the-parts. may be applied to the different forms referred'to. V

- As he'reinbefore indicated I have shown only so much of the Remington-portable machine, as at present constructed, as may be necessary to arrive at an understanding of my invention in its embodiment therein.

The invention may be readily embodied in that machine without modifying or. materially modifying the structural features thereof as they now exist, the'change in the main being the addition of the parts 85,

87, 82,80 and 91. Nevertheless, I desire to have it understood that the invention is not restricted to its embodiment ina machine of the character shown. Sofar as I am aware I am the first to provide in combinacertain features thereof may be employed tion with a part of a typewriting machine,

Without others.

What I claim asnew and desire to secure by Letters Patent. is

1. In a typewriting or like machine, the combination of, a'platen, printing instrumentalities, means for effecting a relative case shifting movement between the two,

means for locking the shiftable part in its shifted position, means operable at will for releasing said locking means, and antennatically operating means for releasingsaid locking means preliminary to inclosing the machine within its case.

I "2. Ina typewriting orlike machine, the combination of a platen, printing instrumentalities, means for effecting a relative case shifting movement betweenthe two,

means for locking theshiftable part in its shifted position, means for collapsing a.

- portion of'said machine, and means controlled bys'aid collapsing means for releasing said locking means. r

3. In a typewriting or like machine. the combination of a platen, printing instrumentalities, means for effecting a relative case shifting movement between the two, means for locking the shiftable part in its shifted position, means operable at will for releasing said locking means, and automa- -tically operating means for maintaining indefinitely said locking means inoperative.

l, In atypewriting or like machine, the combination of a platen,printinig instru-' mentalities, means for effecting a relative case, shifting movement between the two,

means for locking the shiftable part in its shifted position, means for collapsing aportion of said machine,-and means controlled bysaid collapsing means' for releasing said locking means and rendering it inefiective so long as said portion of remains collapsed.

5 Thecombination of a platen of a typewriting or like machine, printing instruthe machine mentalities, means for effecting a relative case shifting movement between'the two,

means for locking the shiftable part in its shifted position, means for collapsing a por tion of said machine, a casing in whichthe machine may be inclosed and which is pre' vented from belng closed when saidlocking' means retains said shifted part jinthe abnormal or shifted position, and means controlledby said collapsing means for releasingsaid locking means and allowing the shifted part to return to normal position} in order thatthe casingmay be closed and inclose the machine. r

6. In a typewritingor like machine, the combination ofa platen, means foreffecting a substantially horizontal case shifting movementof the platen thereby increasing the fore-anjd-aft dimensions of the machine at this point, case shift locking means Qfofr retaining the platen in its shifted position, means operable at will for relea'sing said locking means, and automatically operating means for releasing said locking means and permitting the position. v

7 In a typewritin platen to return to normal or like machine, the

combination .of a platen, means for effecting a case shifting movementof the platen thereby increasing the dimensions of the machine" at this point,-case shift locking'meansforretaining the platen initsshifted position,-a

partthat'is movable into' and. out of con tractedrelationship with the machine, and

means controlled bythe movement of said part into contracted relationship for releasing said locking means.

8. In a typewriting or like machine, the combinationof a platen, means for effecting a case shifting movement of the platen there by increasing the dimensions of the machine at this point, caseshift locking means for retaining the platen in its shifted position, a part that is movable into and out of contracted relationship with the machine, and.

means controlled by the movement of said part into contracted relationship for releasing said locking means and for thereafter rendering said locking means ineffective so long as said part remains in its contracted position.

9. In a typewriting or like machine, the

combination of a platen, means for effecting a case shifting movement of the platen, case shift locking means for retaining the platen in its shiftedposition, a series of type bars movable into and out of contracted relationship with the remainder of the machine,

means for thus moving said type bars, and means controlled by said moving means for automatically releasing said locking means. 7 10. In a typewriting or like machine, the combination of a platen, printing instrumentalities, means for effecting a relative ease shifting movement between the two, means includinga key actuated catch movable by its key into locking position for lockingfsaid shiftable part in its'shifted position, means operable at'will for releasing said catch, and means independent of a printing operation ofithe machine and of said: first mentioned releasing means'for automatically moving said catch to its releasing position. 7

,11. In a typewriting or like machine, the

combination of a platen, printing instrumentalities, means for effecting a relative case shifting movement between the two,

, means including a key actuated catch moved position, means operable able by its key into locking position for locking said shiftablepart in its shifted position, means operable atwill for'releasand automatireleasing sald it to return to leasing said locking means, cally operating means for locking means and allowing normal position. I

13. In a typewriting or like'machine, the

combination of a series of key controlled type bars, controlling means for simultaneously moving said type bars from the1r nor mal positio-nof use into a more compact relation with. referenceto the remainder of the machine and where theyareineffective for operation by their keys, a platen, means for effecting a case shift movement of said platen, locking inieans for holding the platen in its case shifted position, and means controlled by said controlling means for releasing said locking means when the controllin means are actuated to move the a: Y t )e bars into com aact relation.

14. In a typewriting or like machine, the combination of a series of key actuated type bars, controlling means for simultaneously moving said type bars from their normal position of-use into a more compact relation with reference to the remainder of the machine, a p?aten,' means for effecting a at will for re a aesa I case shift movement offsai'd platen, locking meansfor l1olding the platen in its, case shifted position, and means controlled by said controlling means for releasing said locking means when the'controllmg means are actuated to move the type bars into com-. pact relation vand for. thereafter rendering. said locking means ineffective-until the controlling means are againactuated to return the type bars to the normal position of use,

15. Ina collapsible typewr-iting or like machine, the combination of means including a rock shaft operable at will for con trolling the collapsing movement offparts of the machine,-typebars, a platen, means for effecting a relative ease shifting movement between the platenand type bars, locking means for-locking the shifted'part in case shifted'positio-n, and means controlled by saidrock shaft for releasing said locking meanswhen the shaft is rocked to collapse the machine. i 1 r I a 16; In a collapsibletypewriting or like machine, the combination of means .inc luding a rock' shaft operable at will for controlling the collapsing movement of parts of the machine, type bars, a platen, means for effecting airelative case shifting move ment between the platen and type'bars,lock-f ing means for locking the shifted part in case shifted; position, and means controlled by said rock shaft for releasing said locking means whenthe shaft is rocked to collapse the machineand for preventing the locking means from being efi'ective solong as the machine remains collapsed,

17. The combination'of a platen, printing instrumentalitiemg. means for effecting a relative ease shifting movement between the two, and automaticallyoperating: means for V ensuringthat the case shifting member is in normal position before the machine can be inclosed in its case. a i v V 18. The combination of a platen, printing instrumentalities, means for effecting a relative case shiftingmo-vement between the two, an :inclosing case for-the machine having a part that holds the shiftable member against case shifting movement from normal position when the casing is closed, and automatically operating means for ensuring that the case shifting memberis in normal position before the machine can be inclosed in its case i V 19. The-combination of a carriage mounted for case shifting miovement, an inclosing casing havingacover with a contact thereon that coacts with the carriage to support it in normal position against case shifting movement, and automatically actuated means for ensuring that the carriageis in normal case position before the cover can be closed on the machine 20. In a, typewriting or lik must, at I combination of a part thereof Which in the ordinary operation of the machine may be shifted to and locked in an abnormal position and Which when in saidabnormal position. prevents the case for the machine from being closed, and automatically operating means for ensuring the restoration of said part to normal position before the case is closed.

21. The combination of casshiftingmechanis'm for a typewriting or like machine, means for locking said case shifting means to hold the shiftable part in case shifted position, a casing for inclosing said machine, a

I CHARLES E. SMITH. v

Witnesses: 1

LILLIAN NELSON, .E. W LLS.

Images