US1468274A - Typewriting machine - Google Patents

Description

,1 H. E. BRIDGWATER Sept. 18, 1923.

T YPEWRI TING MACHINE Filed March 16. 1922 5 Sheets-Sheet 1 am uemtoz WITNESSES W 7 WM 6.1 J n L v abto'wuut Sept. 18, 1923. 1,468,274

H. E. BRIDGWATER TYPEWRITTNG MACHINE Filed March 1922 s Sheets-Shee t B WITNESSES avwentoz W gzwmw Sept. 18 1923.

. r 1,468,274 H. E. BRIDGWATER TYPEWRITING MACHINE Filed March 16 L 1922 3 Sheets-Sheet 5 WITNESSES I I svwentoz 4 vi'W 11,44 j W 331 LL 61mm;

Patented Sept. 18, 1923.

UNITE err-as HERBERT E. surest/verse, or SYRACUSE, NEVJ YORK, ess'reuoe fro -3EMINGTON TYPEWRITER COMPANY, OF ILION,

NEW YORK, A CORPORATION OF N'EVV"*YOlE/K. V

'IY'PEWBITING' MACHINE.

Application ifiled lglarch 16, 1922. serial in, 544,161.

.To all whom it may concern:

. Beit. known that 1,. warnn,, citizen of the resident of Syracuse, in'the county of Onondaga and-State of'Ne-w York,,have invented certain new and Typewriting Machines, lowing is aspecification;

;of. which" the 1501- to light or portable typewriters ofthe collapsible or compactible style, and has tor its "main object to provide new and improved type bar "actuating mechanism which 7 "is especially adapted for p portable typewriting machine whereln the type bars are collapsible; stated the object of my closed in my prior application Serial No. 532,983, filed January"31,'1922, to a col lapsible typewriting machine wherein the i a fixed or non-shiftable, support asin the well-"- type barsv themselves are pivoted on known Remington portable typewriter.

hereinafter appear, my consists in the features of construction c'om- Fbinations of device s and arrangements of 1 parts hereinafter described and particularly pointed outin the appended claims. 7 The preferred able typewriter. :In said drawings, i

with parts in section, 7 able typewriting machine embodying my invention, only so much of the machine be,- ing shown ass-is necessary to a complete understanding of the invention.

of said machine and approximately. on a plane, indicated by the section line 1- 1 fin fore-and-aft vertical sectype system raisedand the machine expand-' ed ready for use.

Figure 4 is a fragmentarysectional view showing the central type bar action eti'Fig. 3 1n operated posltiornthe' lowercase type HE BE T E. Bums: United States, and

'seful Improvements in employment in. a

To the above and other ends which present invention form of my present inven- 'tion is illustrated in the-accompanying drawings as applled to the Rem1 ngton port- Figure 1 is a fragmentary top wplanfview, 'of acollapsibleporb,

being shown printing contaict with'the laten. 4 n i Figures isa fragmentary transverse v cartical sectional view taken "on aplane-indi 'cated by the section'line 2-2 in; l a'nd'j looking rearward in the 4 direction of the:

arrow at said line, but omitting some of'the V v parts shown in Fig; '2. My present invention relates particularly f In the Remingtonportabletypewriting machine, whose construction corresponds generally with;the disclosures in'the patent I A. W. Smith, No. 1,342,513, ranted June 8, 1920, andJ. B. Holden, granted August 2, 1921, the main frame isg composed largelyof sheet metal, comprising More specifically I invention is to adapt'type bar mechanism of the kind/ch8 right and left handg side plates 1 ofjsuit-j, able form, which are" connected'at the front by a 'bar or plate2iprovided with" parallel casting' 3 which difier'sQsome'What in form from usual:casting fthetRemington portable machine, andfico rnprisejs an. inner segmental'portion a, and an outer segmental 1 om v:7

portion' 5 of larger 'diaineterjbutl concentric with the inner segmental" l'portiongj f H which it is spaced apart. Side' p'ortionsfor outward, their; end faces i receivingi headed lati'onship.- An outer' sheet metal 'casing 8 inclose's the hframework, comprising the plates 1 and'2, and the cast ng 3;; A top plate 9' is suitably secured to'certa'inof the webs 6 'connect 'the' SegmentaLportiQns'. 4 and '5 at their. endsandextend'laterally frame members, its'rear, edge beingtorined i on an arc OfZJCIlClQ except at the sides 7 wh ch are, straight. The platen lO gwhich 5 is diagrammatically illustrated, is mounted. Figure 2 is a. fragmentary fore-and-att vertical sectional view taken about centrally on a traveling carriage which is shiftabl'e to change. case in a directionfore and aftjof rest device or su'pport is providedas in the Remington portable machine, said dev ce comprising atype rest proper or'pad 11 which may be of felt, and a segment 12 oil sheet metalQQOn, top or the segment 7 lZisarranged awider segmentalplate or dust shield 13,"the forvfvard edgefotf said shield being I contiguoustothe rear' edge' of the top plate 9- when thelmach ine is (101- 1 lapsed. Beneath the segment l2is secured a 'plateflla of sheet metalfformedwith a trough or seat 15 atits r ea'r side which recs;-

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ceives the rest or pad 11, the latter being ,their lower ends being [pivoted at 23 to on the side platesl.

confined in the seat by the downwardly bent rear edge of the shield 13. The rest 11 is movable up and down andto this end the outer end portions of the segment 12 are provided with vertical ears or standards 16 which are received in and slidably cooperate with flanged or U-shaped guides 17 vertically arranged and provided at their lower ends with horizontal base portions 18 secured to the" under side of the'webs 6 by screws 19. 'Tlie rest device or lifter is inovable to predetermined set positions by means that; co-operate with ears :20 bent downward from the ends or" thesegment 12 and to which are pivotally connected at 21 the upper ends of links said links at crank arms 24 fixed to a rock shaft 25 arranged transversely of the machine in its base, said fsha ft {being rotatably supported The hand-controlled l-means for ro'c'king the shaft comprises a crank arm 26 fixed to the right-hande1id of :the shaft outside the adjacent side plate 1*. i The outer end of said cran'k arm terminates in a laterally projecting head '27 which 'hou sesa poppet Stud and also supports a convenient finger piece. The housing "or head 27' is bored out as'indicated at 28 to re- ;ce'ive a poppet stud or pin 29 which is pro.- vitledfwith a flange 30fand carries out-side "the housing acap 31' which fits over they end iof'the housing and serves as a finger jpiece forpulhn the. poppet stud longitudinally outward against theforce of its spring 32,

and also for adjusting the crank .arin The inner end o'f'thestudis adapted to. co

operate with'two'holes 33 'formed in the righthand side plate 1 to lock th'ec'rank arm. 26 and the parts connecting the rock shaft with the'shifta-ble'rest device inset positions. Anfa rcuate slot 8 in the righthead 27 hand plate 8 aifords passa e-wa for the during swinging movements "of the crank arm 26. The crank arms 24 and the links 22 constitute pairs of toggles which are broken when the machine iscollapsed as in Fig. 3, but which, when straightenedas in Fig. 2'by operation of the finger piece or key 31, elevate the rest 11 and expand the machine. Fixed centrallytothe rear por- 7 tion of the casting 3 by s'crews 34' is a stationary centel guide member 35 which is inclined rearward andslightly upward and terminates in a guide opening indicated 'at36'with which the type ends of the type bars'are'adapted to co-operate as they near the printing point on the top of the platen.

Said type bars, each designatedby the. numeral 37, are arranged 111 an arc of a circle forward of the platen, being received I in vertical slots indicated at 38 formed radially in the front and under portion of the segment 1', these guide'slots radiating from lower end of the guide opening 36. Only a. few of the guide slots or kerfs 38 are illustrated in the drawings but it is'to be understood that the segment a is cut or; formed with a full seriesof such slots sufficient to receive and guide a complete set of type bars 37. These type bars are mounted ona common arcuate pivot wire 39 which is received and housed in a slot l0 formed horizontally in the upper'porti'on of the segment l. The free end of each type bar is pro vided with a typeblockil having two types;

one lowercase andone uppercase, the lower a 7 case types C0Op6l'3 t11 1g Wltl1 the platen nor-' mally and the upper case types coming into use when the platen is shifted. the under a common center on the type guide 35 at the i side of the type bar opposite the type block I is a rounded projection or nose 42 which,

when themachine is compacted or collapsed as in Fig. 3,' may contact with a pad of compressed felt or the like which is secured in .a depression or countersinkintheftop plate 9, said padbeing arcuate and extendin from one side of the top plate 't'o'the jot er. WVhenthus compactedrit will be understood that the "machine and the type bars are in a condition of disuse, thc body portions of'th'e type bars being recumbent or substantially horizontally ends'oii' the rest orpa'd 11fwhich-is -in2its depressed or lowermost position.

surface of the shield 13 a-ndthe under edgcs V 7 disposed-and resting betweenth'eiri pivots and their type v g The top corner of the paid properproject's above the 1 iii) of the type bars areso shaped that-"they w contact only with the rest 11 and thcfpad lll sothat when the lifting device'11 15 is raised the type bars will -slide freely;over the restor"pad'.-11'-which rises vertically. The heel portions of the type bars, or those Portions fltthe pposite "sidesof their ful through the'guide' slots'38. The heel ot each type bar is provided 'with'a time or curved actuating slot indicated 'at 44; Co-operr-- tively engaging with saidslot is a headed actuating pin 45 "whichpi'ojects laterally fro'nithe rear end of an operating member or sub-lever 46, said lever underlying the;

associate type bar and having a yielding or i jecting from the sides ofthe -key levers, the

links 48 being perforated to fit over said pins and being prevented from becoming accidentally detached by spring clips 51 crums from the body portions, 'curve 'or ,extend downward when the typ bars are in disused position, said heel portions passing secured to the sides of the key levers 50. Said key levers extend horizontally foreand-aft of the'machine and at their rear ends are formed with open-mouthed slots 52 to fit over and 'co-operate with a fulcrum rod 53 which is mounted on a slotted angle-bar 54 secured byscrews 55 to the under side of the casting 3. Near their front ends said key levers pass through and are guided by the comb plate 2, said key levers terminating in upright portions or stems 50 which receive finger keys or buttons 56. The stems of the keylevers are varied in height so as to provide rows or banks of different heights as is usual, there being four banks of keys in the present case.

As stated, the type bars'are adapted to be elevated into a position for use by the elevation of the rest 11 \Vith the type bars having a pin and slot or direct connection with'their sub-levers it was found to be necessary in: order to enable the partsto move freely during the expansion of the machine and to prevent cramping or binding, to provide a yielding fulcrum or shifta'ble supporting means for the sub-levers. In

by individual fulcrum arms57, one for each sub-lever 46. The fulcrum arms, which are nearly upright when the machine is in collapsed condition, are provided each at its upper end with an open-mouthed slot indicated at 58 which receives a headed fulcrum pin 59 projecting laterally from the side of the associate.operatinglever 46 bethe slot, there beingthusprovided a-fulcruin for the lever 46. The fulcrum arms 57 are 'pivotally supported attheir lower ends on an arcuate pivot wire 60 common to all of the fulcrum arms, and mounted on a detachable bar or member 61 which is segmental in shape and comprises a forward plate-like segment o stepped down so that the under face ofthe" portion 62 and "a thicker rear portion 63; the

rear portion being formed with radial guide slots indicated at 64 in which-the fulcrum arms 57 are received. also provided with a horizontal openmouthedslot indicated at 65 in which the wire 60 is seated. The plate-like'part 62 of the bar 61 rests on the top. ofthe' stationary and is detachably secured thereto by headed screws 66, the heads of said screws being received in counters/inks indi cated at 67 on the top of the plate 62. "The rear portion "of the segment 5 is depressed or portion 63 of thebar 61 may rest on it.

The construction is such that when the screws 66 are threaded into place and tightened the detachable fulcrum member 61 is rigidly connected to the frame segment 5.

There is thus providedfa bearing member for the entire set of fulcrum arms which is detachable and attachable independently of Said P rtion 63 is the'type bar segment, thu's'promoting conv enience in manufacturing and assembling,

The casting 3 andthe member 61 constitute a two-part support; for the type bars and the sub-levers. The guide slots 64 are radially formed and have'the same center'as the slots 38 in the segment t, the two sets of slots being aligned with each other as clearly app pears from Fig. 1. It is to beunderstood that while for convenienceof illustration the fullshowi'ng of the slots64c'has been omitted from "thedrawings yet there is a slots corresponding in number to theslots" 38 in the segment' l. It will be seen that-the type bars togetherl with part of their type actions comprising the leversf46, .radiate from a common center, while the *key levers extend fore-andaft of the machine in substantial. parallelism, although slightly fanned outwardat the sides of the system in order properly to space the'keys in the keyboard.

Also it will be apparent-that the links 48 maybe bent 3 or twisted'in'order .properlyto connect the sub-levers 5L6 with the present instance" such means is afforded vided with separate spring restoring means that may comprise a coiledspring 68 booked at its upper end in a hole infthe associate said spri ng extending downward "and being anchored at its lower end to an arcuate' spring plate=69 I Said 'plate is suitably se'-, cured to the under" faceof thesegment' '5 and tween its ends and resting in the'bottom of 's'ub-lever e6 backfof the fulcrum thereof,

has its inner" edge portion 70' inclined up= ward and rearward and forinedwitha' series of holes through whichthe lower .e ndsof the springs 681 are hooked -Th e pl ate-like part 62 of themembertil has suitably seward. at its inner edge toprovide aastop or 7 support for the sub levers 57 when-the machine is in use, sa-i'd subdeversli'aving move mentswhich may be said to be more or less fore-and-aft' or horizontal; during the eX- 13211181011 and compaction of the machine, as distinguished from the vertical shifting movements ofthe rest 11 or lifting device;

The forward edge portion oftheplate 71 adapted to serve as a locking device, preventing operation of'th'e typeactions when the machine is-compa'cted as in Fig. 3,

shoulder or hook 4 8 on each link 48"con-e ,taeting at this time with the plate 71 so as to prevent downward movement of the link if it be lever.

.lt' will be understood that when the ma- "chine is compacted-as in Fig. 2 the poppet stud 29 is engaged with theforward of the attempted to depress its 7 associate key two holes 33, thus setting the toggle ele-.

ments 22 and 24, and'the lifter' l l lti in depressed'posi'tion with the typebarsiecumbent and locked against operation by the plate 71. When it is desired to expand the machine for use, the poppet 29 is pulled out of engagement with theforward hole 33 and the crank arm 26 is swung rearward until the poppet is brought opposite the rear hole 33, the poppet then being released to engage in said hole and re-lock the parts. This rearward movement of the crank arm rocks the shaft and straightens the toggles in Fig. causing the lifterto be .moved or shifted ivei'tically upward on its traclrways and swinging the type bars upward and rearward on their pivots 39 into position for use. It will be observed that this swinging movement of the type bars is whollypivotal as distinguished ti'oma bodily movement, the pivotal support of the type bars being fixed. From 2 it will be noted that while the type bars have not been brought to an exactly vertical position yet they are substantially upright and I are supported by the rest 11 above their pivots in position to be actuated to print when-the key levers 50 are depressed. The

raising or elevation of the type bars and the consequent expansion of the machine are. permitted by reason of the fact that the fulcruins of the levers 46 are floating or .yieldingly mounted so that said le- 'vers may-all simultaneously move'or yield tothe shifting of the type bars, thesemovements carrying said levers from the Fig.

7 position radially outward to the Fig. 2-posi- 'tion'. The levers 46 near the middle of the 7 machine will have a substantially forward [movement While themotions of the outer leverslot' the series will include lateral or sidewise components, vyetfto a considerable extent their movement is also forward. The

fiulcrums 59 of the levers or sub lev'ers 46 also move forward and at the same time are slightly lowered, due to the fact that the :tulcrumarms o7 swing downward from a substantially upright position to the in clinedposition illustrated in Fig.2. This forward movementof the sublevers swings the upper end oortio'ns otthe links 48 forward about their pivotal connections 49, the

latter remaining stationary, and such swinging movement clears the locking shoulders 48 from the locking plate 71, thus unlocking the type actions.

lVhen one of the printing key levers 50 is depressed the parts of the type action will be moved from the Fig. 2 positionto the position illustrated in Fig. 4:, the link 48 pulling down the forward arm of the sub-lever 16 and raising the rear arm thereof, causing the actuating pin 45 to traverse the cam slot '44 and swing the type. bar downward with an accelerating motion due to the relationship of the pin-'andslot connection between the type bar and its sublever. Such accelerating action continues until the type bar is within an inch or so of the platen and the pin has approached the end of the slot .44 and the type bar pivot 39, after which the pin begins to recede from the type bar pivot. The accelerating action is similar in results to that of the No. 10 Remington machine type bar action. With the parts'rela'ted as inFigs. 2 and l, the platen at this time is in its forward or lower case position and the in neror lower case type on'the'type bar will. a

make the imprint. It will be understood that to pr nt niuppercase the platen is shifted rearward to the dotted line' po-' sition of Figs. 2 and 4- and that this case shitting movement of the platen is entirely distinct from and independent of the shifting movements for compacting and eXpanding the machine. It is further to be noted that during the printing actuation of the type bar the bodily location of the fulcrum arm 57 will remain unaltered, said armrereleasing the depressed printingkey the type action will be restored to normal position hytlie spring 68. I r I f The machine is compacted or compressed and the type bars simultaneously restored from the position of use (Fig. 2) to the position or" disuse (Fig. 3) by manipulating naining in contact with the plate 71. On

the finger piece or key 31,.swinging, the crankarin forward again and raising the "toggles 22, 2e, loweringthe lifter 11 15 and causing the typebars to slide down from the raised positionto theirilower or recumbent position.

Variouschangesm-av .be made without de parting from my invention. c lVhat I- claim as new .anddesire to secure 1y Letters. Patent,:is

1. In a collapsible typewriting machine,

IOU

the combination of a setoftype bars, means for actuating the type bars comprising a set Of'Sllbt'lQVQl'S, and means for expanding the mach ne for use by simultaneously swinging the type bars'on their pivots to a new position and atthesame time bodily shifting said sub-levers, said expanding ncans comprising a type bar rest settablein a plurality of positions.

. change case, a set offtype bars eachlprovided with two types, one type on each type bar coroperating with theplaten in one of its shift positions and the other type cooperating with the platen in the other ofits shift positions, a fixed segment on which said type bars are pivoted, means for actuj ating said type bars comprising a set of shiftable sub-levers, and means for expand ing the, machine for use by moving'all of the type bars on their pivots simultaneously and at the same time bodily shifting said sub-levers. v

4. In a collapsible typewriting machine, the combination of a platen shiftable to change case, a set of type bars each provided with two types, one typeon each type bar co-operating with the platen in one of its shift positions and the other type co-operating with the platen in the other of'its shift positions, a fixed segment on which said type bars are pivoted, means for actuating said type bars comprising'a set of shiftable sub-levers, and means for expanding the machine for use by moving all of the-type bars on their pivots simultaneously and:at the same time bodily shifting said sub-levers, said last recited means comprising a type bar rest settable by hand and against which the type bars are adapted to lie in both their collapsed and expanded positions. 7 5. In a collapsible typewri-ting machine, the combination of a set of type bars, a fixed support on which said type bars are pivotally mount-ed, means for actuating the type bars comprising a set of sublevers having shiftable pivots, and means for expanding the machine for use by-pivotally moving all of the type bars and at the same time automatically shifting said sub-levers and their pivots, said last recited means comprisinga type bar rest settablebyhand and against which the type bars are adapted to liein both their collapsed and expanded positions. 7 6. In a typewriting machine, the combi nation of a platen shiftable to change case, a set of type bars each provided with a plurality of types, one of which is' adapted to co-operate with the platen normally, and the other with the platen when it is shifted, key operated means for actuating saidtype bars, comprising a set of sub-levers, means for shiftably supporting said sub-levers, and means comprising a shiftable type bar rest. for simultaneously moving said type bars on their pivots to a new position and at the same time automatically shifting said sup- 7 porting means for said sub-levers. 7 In a typewriting machine, the combination of at set of type bars, keyoperated means for operating said type bars compris- 7 ing a set of sub-levers, swinging fulcrum arms on which said suh-levers are pivotally 7' supported, and means for moving. said type. 7.

bars and automatically swinging said fulcrum arms to shift the. pivotsof said sublevers, said means comprising a hand-controlled type bar rest.

8 Ina typewriting machine,.the combi-. nation of a set'of-type bars; sub-levers having pin-and-slot'connections with said type bars; pivoted fulcrum arms each providing 7 a pivotal support for one of said sub-levers;

key levers; links connecting said key levers wlth said sub-levers; and means for moving said type bars and simultaneously swinging said fulcrumarms to shift the pivots of the sub-levers, said means comprising a rest for supporting the type bars between their pivots and their type ends when said type bars are in collapsed position, a finger piece or key, and connections between said key and saidtype bar rest for shifting it to expand the machine for use. Y

9. In a top strike machine, the combination of a platen shiftable'tochange case; aset of type bars each provided with two types, one co-operative with the platen nor- I mally and the other when the platen is shift ed; sublevers having pin-and-slot connections with said type bars; pivotally mount ed fulcrum arms on which said sub-levers are fulcrumed; key levers; links connecting I said key levers with said sub-levers; and" means for moving said type bars and simultaneouslyshifting said fulcrum arms, said;

means comprising a rest for supporting the type bars between their pivots and their type ends'when said type bars are in'coliapsedposition, a finger piece or key, and connections between said key and said type bar rest for shifting it to expand the machinefor use. i V

10. In a typewriting machine, the combination of a type bar support formed with radial slots, a set of type bars seated in said slots, key levers, connections between said key'levers and said type bars comprising sub-levers, fulcrum arms for said sub-levers,

a second support provided with radial slots in which said fulcrum arms are seated, the slots in the two supports radiating from a common center, and means for 'detachably fixingsaid second support to said typebar support.

Signed at Syracuse, in the county of Onondaga, and State of New York, this 14 day of March, A. D. 1922. f

HERBERT E. BRIDGWATER.

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