US893422A - Type-writing machine. - Google Patents

Description

No. 893,422. PATENTE-"D JULY14, 1908. ERBARNBY.

TYPE WRITING MACHINE. APPLIUATION FILED JULY 12. 1905.

2 SHEETS-SHEET 1.

1415 "www No. 893,422. PATEN-TED JULY I4, 1908.

E. El. BARNEY. TYPE WRITING MACHINE.

APPLICATION FILED JULY 12, 1905.

2 SHEETS-SHEET 2.

MA1-m1551555: FI G. 7. INVENTEIFQ: 7 70k twg W HIS Amma 'narran erariale ieiarnrtr ernten.

EDWIN E. BARNEY, Ol SYRAOUSE,

OOMPANY, OF SYRAOUSE,

NEW YORK, ASSIGNOR TO 'lI-IE MONAROII TYPEWRITEP.`

NEW YORK, A CORPORATION OF NEW YORK.

TYPE-WRITING MACHINE Specification of Letters Patent.

Patented July 14,' 1908. v

Application filed July 12, 1905. Serial No. 269,359.

My invention relates more particularly to parts the means employed in typewriting machines lor spacing between words.

I'litherto it has been the custom to so. adjust the universal bar relative to the escapement mechanism that the action ot both space bar and character keys on said universal bar was the same, and the release of the stepping dog from the tooth of the. escapementwheel was ell'ected by a movement of the dog rocker which was ol' the same extent whether caused b v character key or space bar, sothat the holding dog moved the same distance into the escapement wheel in both cases. The result was that in constructions wherein the holding dog was provided with. an inclined or beveled face and the space'bar was usually supported upon two levers of light weight, one pivoted at each side of the keyboard, the depression of the space bar under a slow or hesitatious stroke would sometimes cause the beveled face of the dog to strike the tooth of the escapement wheel, and the spring or give ot the parts would ermit the rocker to be cammed backward. In such )rior constructions the carriage was frequently caused to move one or more letter space distances before the space key was released by the operator. Furthermore, in visible writing machines it has hitherto been usual to connect the means for vibrating the ribbon with the universal bar so that the space key or bar, bar, would raise the ribbon to cover the printing point just as said ribbon is raised when a character key is depressed. This vibration 'of the ribbon by the space bar was a useless operation and one more or less annoying to the operator, especially when' the carriage was moved or shifted from one column field to another by the repeated actuation of the space bar as is the practice of some operators.

The maiinbject of this invention is to obviate these defects, my improved construction providing in the iirst place means whereactmg on said universal ment mechanism independently ot' the universal bar, which is operable only bythe character keys and in the second place means whereby the ribbon vibrating mechanism is operated independently olthe space bar or key. Other objects will subsequently apear.

the features of construction, arrangement of and combinations ot devices herein-at-` ter fully described and particularly pointed out in the claims. l,

.In the accompanyingr drawings, Figure 1 is a vertical front to rearsectional view, taken about centrally, of a4 typewriting machine embodying my invention, such vparts of the machine as are unnecessary to a complete understanding of my improvements being omitted. Fig. 2 is a fragmentary l'ront yelevation of the upper part of the machine, certain parts being omitted. Fig. 3 is an enlarged detail ments, showing their relation when a character key is depressed. F ig. 4 is a top plan view corresponding to Fig. 3, parts 'being .omitted Fig. 5 is a view similar to Fig. 3

To the above ends, the invention resides in side view of the eseapement eleshowing the relation of the parts when the space bar oi* key is depressed. Eig. 6.. isa top plan view of Fig. 5, partsbeing omitted. Fig. 7 is a sectional view taken on a plane represented by the line in Fig.. 1.

In the drawingsthe frame of the machine is shown as comprising a base l, corner posts 2 and a top plate 3. Key levers -l a'relfulcrumed on a fulcrum pllate 5 in the rear ol" the base, each key restoring spring 6 and having pivoted to itat 7 a sub-lever 8, the lower end'whereof` is slotted to cooperate with a fixedV abutment and the u er end whereof-is connected byfa link l0 witi a type bar 1l. The type bars are. circularly arranged, each, as herein shown, being guided` in a radial slotf '1'2" termed in a segmental type bar support' and being pivotally supported on,J a l'ulc'runi rod i4 seated in' a groove cut in the topol' "said segment i3. Any other known method* 'of su porting the type bars 4on the segment may e employed and said segment, though it is preferably connected with a lmou/nform of shitting mechanism, may be either ol the' shil table or nonshiftable kind.` y r The typebars are designed to be moved up-f wardly and rearwardly to cooperate. with the by rthe space bar or key operates `tl'rerescapel front face of a rotary cylindrical platen 15 lever being provided with a and 26 are carried at the top of mounted in a carriage 16, the rear bar 17 whereof is grooved'longitudinally to receive antifriotion balls 18 which also coperate with grooved guide ways 1 9 secured to brackets 2O fixed tothe top plate of the machine. A-rack 21 is supported in the carriage and normally meshes with a feed pinion 22 operatably connected with an escapement W leel 23, the teeth 24 whereof coperate with a pivoted feed or stepping dog 25 and a fixed or holding dog 26 W iich last face formed with a bevel 27. The dogs 25 a pivoted dog rocker 28 provided with a restoring spring 29v and having a horiz'ontally disposed arm 30. An adjustable link 31 is pivotally connected at 32 with the free end of the arm 30 of the near its ends and extend lversal bar 49`which is also 'Y of its length with the central rearwardly ex dog rocker 28, the lower end of said link 31 being operably connected in a manner presently to be described withv the printing keys and the space bar.

' An ink ribbon 34 is wound u on and has its ends connected to ribbon spoo s 35 arranged one at each side of the machine above the top `plate and forward of the platen 15. The ribon spools are suitably secured at the tops of vertically disposed shafts 36 adapted to be vturned in fixed bearings 37 by a known construction of ribbon feeding mechanism. Between the spools the ribbon 34 is threaded -through a ribbon carrier or vibrator 3.8

guided and supported in a bracket 39 and connected at its lower end with the forward arm of an operating lever 40 pivoted at 41 in a lu 42 depending from the top plate of'the mac ine. A link -43 is connected at its upper end with the operating lever 40 and at its lower end with an arm 44, extending rear .wardly fr om the center of a rock shaft 45 .40

having pivot bearings 46 secured in brackets 47 depending from the top of the base 1. Arms 48 are secured to the rock shaft 45 towards the rear, their vfree ends being connected by a uniconnected midway tending arm 44. Themrockshaft 45, arm 44.,

' arms 48 and'universal bar 49 comprise a universal bar frame which vibrates vabout the pivots 46 and underlies the rear portions of all of the series of vkey levers 4, the side members of the series of key levers having a lateral in-4 clination and being offset laterally and outwardly forward of the pivots 46,` asbest appears in Fig.v 7. The rear end of the arm 44 extends somewhat behind the universal bar 49 'and the front end of said arm extends.

somewhat forward of the rock shaft 45, said forward arm cooperating with a coiled restoring spring 50, disposed between the arm 44 and a bracket51 dependingfrom the base 1.

The arts hereinbefore described are sub- 'st'antia y similar inl construction and arrangement to those of the structure commercially known as the Monarch typewriter,

has a working sea/lea though differing somewhat in detail from' that machine, and it is, therefore, not deemed necessary to describe them with any greater degree of particularity. It is to be understood, however, that although I have shown my invention as applied to the Monarch typewriter, said invention may be adapted to any other writing machine suitable for the purose. p .A space bar or key 52, preferably of wood, isv arranged at the front of the base and for vward of the character keys, being secured at the forward ends of apair of arms 53. The rear ends of the arms 53 are formed with col lar portions .54 which are perforated to receive a rock shaft 55 to which saidcollar portions are suitably secured as by rivets 56.

The ends 57 of the rock shaft are reduced in diameter and are received in vperforations in bearing brackets 58, said brackets being secured by screws 59 to the side walls of the base 1. Centrally of the rock shaft 55 is a collar 60 secured to said rock shaft by a set screw 61, and integral with said collar is a rearwardly extending arm 62. Springs 63 are coiled around the ends Vof the 55, one end of each of said s rings engaging with a pin 64 fixed in the roc shaft and the other end of each spring hooking over one of the brackets 58. A buffer or limiting stop 65- is secured to the under side of the space bar 52 at about its center and the springs 63 maintain said buffer normally Qin i contact with an overhangingl lip 66 on the front of the base 1. The positions in which the space bar 52, thearms 53 and the arm 62 are normally maintained vby the coiled spring 63 are shown in Fig. 1. Cushioned limiting stops 67 are secured to the front of the base by screws 68 and serve to limit the downward movement of the space bar 52.V

Arranged above and in contact with the arm 62 near its free end is a small anti-friction roll or wheel 69 Ipivoted on aheaded pin 69 .projecting latera ly from the forward end of alever 70, which lever is fulcrumed on a pivot screw 71 secured in a lug 72 extending downwardly from the central arm 44 of the universal bar frame. The pivot screw 71 is directly beneath the rock shaft 45, and the construction is such that the rock shaft 45 is not effected by the movement of the lever 70. The rear end of the actuating lever 'is pivotally connected at 73 with the lower end of the link 31. Between the pivot 73 and the pivot 71 the rear arm of the actuating lever 7 0 is formed with a laterally projecting ledge or lip 70a which underlies the arm 44 near the rear end of the latter. The

lip 7 0a is formed with a threaded perforation which receives a contact screw 74, the end whereof stands normally beneath the under edge of the ar`m 44, so that when said arm is slightly depressed it will contact withA the screw. The screw 74 is provided with a rock shaftl iofo tic

Vby the reference character a.

seaaea lock nut 74aL and is adjustable so that the ari'n 44 may engage it at different points in the travel of said arm.

From the above description it will be understood that when any one. of the 1printing key levers 4 is adequately depressed, the type bar 11 which is connected with said key lever through the link 1() and sub-lever 8, will be moved unwardly and rearwardly in a known manner to cooperate with the front face cf the platen l5. As the key lever 4 swings downwardly its under edge contacts with the universal bar-49, swinging the latter downwardly about the pivots 46 and causing the ribbon vibrator 38, which is connected with' said universal bar through the operating lever 40, link 43 and arm 44, to move upwardly and interpose the ribbon between the front face of the platen and the type on the actuated type bar.

lt will be recalled that therear end of the arm 44 of the universal bar frame is vnormally slightly above the contact screw 74 on the actuating lever 70. Consequently as the arm 44 is swung downwardly about the pivots 46 it contacts with the screw 74 and swings the rear arm of the actuating lever 70 downwarchthereby causing the link 31'to actuate the dog rocker 2S. The dog rocker swinging-forward willimove the stepping dog' 25 forwardly out of engagement with the tooth 24 of the escapement wheel 23 and will cause the holding dog 26 to engage with the same tooth of the escapement wheel inthemanner indicated in Figs. 3 and 4, wherein it will be noted that the rear or holding dog 26 enters the escapement wheel far enough to bring the beveled face 27 just past the rear edge of the tooth 24, the dep'th of contact on the Hat of the dog being indicated in Fig.. 4 It is to be understood that each key lever 4 of the series of printing key levers is so adjusted in respect of the universal bar 49 that thel dog rocker will be swung forwardly the same distance when the key 1s fully depressed and the holding dog 26 will have the same depth of contact a with the tooth 24 of the escapement wheel when actuatedby any one of the key levers. From an inspection of Fig. 1, it

will be seen that the key lever therein shown will be moved downwardly some distance before it contacts with the universal bar 49 so that the latter will remain quiescent during the first portion of the stroke of the key lever. normally exists'between the under edge of each key lever and the top 'of the universal bar that the uniformity above referred to 1n' the forward movement of the 'dog rocker is obtained. Furthermore, the universal bar will in turn be moved some little distance before it contacts with the screw' 74 and startsl the dog rocker forward. As is well understood this gradual taking up of the load by j far enough to bring It 1s by regulating the space which the 'key lever after said lever has itself acquired momentum conduces toA an advantageous key touch.

When the depressed key lever is released the dog rocker will be restored to normal position under the innuence of the dog rocker spring 29, which, acting through the link 31 on the lever 7 O, tends to restore the latter to normal position with the roll69 in contact with the arm 62. is restored to normal position by the restoring spring 50 and as it returns acts on the ribbon vibrator 38 through the lever 40 and link 43 and restores said vibrator to its normal position. 1t will be noted that during the movements of the actuating member or lever 7 0 under the infiuence of the universal bar 49, the roll'69 on the forward end of said lever 70 first moves upward, separating from y the lever arm 62, and then downward again into contact with said. lever arm, and during the movement of the roll 69 and the lever 7 0 the arm 62y and the other parts positively connected with the space key or bar will remainquiescent. When the space depressed the space key frame7 comprising the bar 52, the side lever arms 53, the rock shaft 55 and the rearwardly projecting arm 62, will be actuated, the parts moving about the longitudinal axis of the rock shaft 55 as a center, the lever arms 53 swinging downward about said axis and the arm 62 upward. As the arm 62 starts upward it acts on the roll 69 which is normally in contact with it and thereby actuates the lever 70, causing the rear arm of said lever to pull down lche link 3l The universal bar frame c key or bar 52 is adequately i and rock the dog rocker 28 forward.l The l parts are so proportioned and adjusted that the' dog rocker will be swung forward until the beveled face 27 pf lthe rear dorf 26 has wholly entered the escape'ment wheely and the tooth of said escapement wheel will contact `'with the straight face of said rear dog to a depth indicated by the reference character b in Fig. 6.

It will be apparent from an inspection and comparison of Figs. 5 and 6 with Figs. 3 and f4 tha t the forward-extent 0f movement of the dog A* rocker under the actuation of the space key or barl will be greater than the for ward movement under the actuation of the printing keys. When the space bar is actuated the rear dog enters the escapement wheel the plain or; flat working face of said dog well in' contact with the escapement wheel tooth, so that even under a slow stroke the flat face of the rear dog will contact with the wheel tooth and there is no tendency to cam the dog'rocker rearwardly as there would be if the rear dog landed with its bevel in contact with the tooth as sometimes happensgfunder a slowstroke. The consequence isthat although the space har or key and its frarnlare very light and although there is considerable spring or` give-in the contact Z1 affords a margin of safety such that though the space bar or key vbe held down,

there will be no tendency 'on the part of the carriage to move ra idly leftward under the in'liuence of the usua carriage power or spring drum 75 with which said carriage is coni ne'cted by band or stra 76 in a known manner. When 4the space ey is released, it and the space key frame will be returned to normal position by the restoringsprings. 63, andthe arm 62 as it moves downward will permit the actuating lever 7 0 to be moved back also to normall position along with the dog rocker under the influence of the dog rocker'spring 29.

It will be observed that during the actuation of the lever 7 0 by ,the space bar the screw 74 on the lever 70V moves downwardly away from thearm 44 of the universal bar frame, so that the latter .remains quiescent,

' and consequently the ribbon vibrator 38 will' also remain quiescent and the ribbon will not be vibrated.

By my invention I provide escapement devices which are operated by an actuatin member or lever 7 (Y which in turn is operated by duplex means, one of said duplex means comprising a space bar or key 52 and the frame on which it is mounted, said frame being composed of thelarms 53, rock shaft 55 and arm' 62, andthe other of said duplex means comprising the universal bar frame and the printingkey levers which are ada ted to actuate the'universal bar 49 forming part of saiduniversal bar frame. f One of the duplex means, comprising the lever arm 44,

is-operative u on 'the actuating lever 70 near one of its ens and the other of the duplex means, com rising thelever arm 62, is operative-upon' t 1e actuating lever near its other cnd. said duplex means is operated, the otherof the duplex means remains .uiescent and inf operative and lthat when tie means operative by the space key is actuated the ribbon vibrator and the ribbon remainl in normal position below and away from the printing point on the laten. The lcarriage spacing ldevices, it wil be noted, comprise a plvoted member or dog` rocker and Athe extent of movement of said pivoted member or dog .rocker .under the iniiuence of one of the key operated duplex means is different from the extent of uch movement when the other of said key oerated means is em loyed. v

Various changes may be e ected in the construction 'and arrangement ofv the parts within the sc ope of my invention. 'I

What I claim as new and desire to secure by Letters Patent, is l l l. In a typewriting machine, the combination of printing keys; a space key; carriage feeding devices including a pivoted member; duplex means for moving said pivoted mem- It will be noted that whenv either of' ber, one of said duplex means being operative by the space key and the other by the printing keys, lthe extent to which said ivoted member is moved by one of said uplex means differing fromv the extent to whichit is moved by the other of the du lex means.

2. In a typewriting machine, tlie combination of printingkeys a space key; .carriage feeding devices including. a dog rocker; du; plex means for rocking said dog rocker, one ofsaid duplex `means being operative by the space key and the other by the printing keys,

lthe extent to which said dog rocker is rocked 'by oneof said du lex means differing from the extent to whicli itis rocked by the other of the duplex means.

3. In atypewriting machine, the'combination of a ribbon vibrator, carriage feeding devices, a member adapted to actuate said devices, means including a universal bar for o erating said member, said means being a sooperative on said ribbon vibrator, and other means fory operating said member, said last mentioned means being inoperative to move said vibrator to the rinting point.

4. In a typewriting mac iine, the combination of carriage feeding devices including a dog rocker; an actuating lever 3 connections between said actuating lever and'said dog rocker; a space key operative on said actuating lever; a universal bar frame operative directly o n said actuatin lever; and printing keys operative on sai universal bar.

5. In a ty ewriting machine, the combination of a ribbon vibrator; carriage feeding devices including a dog rocker; an actuating lever; connections between said actu ating. lever and sald dog rocker; a lever arm operai tive upon said actu-ating lever near one of its ends and another lever arm operative upon said actuating lever near its other end, one of said' lever arms being also operative upon said ribbon vibrator.

6. In a typewriting machine, the combination of printing keys; a pivoted universal bar frame operative by said printing keys; an actuating lever fulcrumed on said universal bar frame; carriagefeeding devices; and connections between said carriage feeding devices and said actuating lever.

7. In a typewriting machine, the combination of printing keys; a pivoted universal bar frame operative by said printing keys; an actuating lever fulcrumed on said univer sal bar frame; carriage feeding devices; con# nections between said carriage feeding dee vices and said actuating lever; and a space key-operative upon said actuating lever.

8. In a typewriting machine, the /combinaan actuating lever fulcrumed on said universal bar frame; carriage feeding devices; lconnectlons between saidcarriage feeding des vices and said actuating lever; aA rock shaft;

sesaaa lever arms projecting forwardly therefrom; a space bar connecting said lever arms; and a lever arm vprojecting'rearwardly from said ro'ckshaft and operative upon said actuating lever. j

*9u Ijn" atypewriting machine, the combinatioirof a rock shaft; lever arms projecting therefrom; a universal bar secured to said leverwarms; printing keys operative on' said universal bar; a ribbon vibrator; connec tions between said ribbon vibrator and one of said lever arms; an actuating lever; connections between said yactuating lever and one of said lever arms; carriage feeding devices; and connections between said carriage feeding devices and said actuating lever.

10. In a typewriting machine, the combination ofa rock shaft; lever arms projecting therefrom; a universal bar secured to said lever arms; printing keys operative on said universal bar; a ribbon vibrator; connections between said ribbon vibrator and one of said lever arms; an actuating lever; connections between said actuating lever and one of said lever arms; carriage feeding devices; connections between said carriage feeding devices and said actuating lever.; a second rock shaft forward of the first rock shaft; le ver arms projecting from said second rock shaft; a space bar connecting said lever arms; and a lever arm projecting oppositely from said second rock shaft and operative upon said actuating lever,

11. In a'typewriting machine, the combination of a rock shaft; lever arms projecting therefrom; a universal bar secured to said lever arms; printing keys operative on said universal bar; a ribbon vibrator; connections between said ribbon vibrator and one of said lever arms; an actuating lever; connections between said actuating lever and one of said lever arms; carriage feeding devices; connections between said carriage feeding devices and said actuatinglever; a second rock shaft forward of the first rock shaft; lever arms projecting from said second rock shaft; a space bar connecting said lever arms; a lever arm projecting oppositely from said second rock shaft and operative upon said actuating lever, the parts being so arranged that when the space bar is operated the ribbon vibrator is inoperative but when the printing keys are operated they act to operate the ribbon vibrator.

12. In a typewriting machine, the combination of a space key; a rock shaft operated thereby; a lever. arm on said rock shaft; a pivoted universal bar frame; an actuating lever operative by said lever arm; carriage feeding devices operative by said actuating lever; a 4-ribbon vibrator operative by said universal bar frame; and printing keys operative on said universal'bar frame to actuate said ribbon vibratorand said carriage feeding devices, said space bar being inoperative upon said ribbon vibrator.

13. Ina typewriting machine, the combination of a key operated pivoted universal bar frame; an actuating lever fulcrumed on said universal bar frame and operative by saidframe; carriage feeding devices operative -by said actuating lever; and separate key actuated means operative upon said actuating lever and inoperative to move said universal bar frame. j

14. In a typewriting machine7 the combination of a key actuated pivoted universal bar frame; a ribbon vibrator;jconnections between said vibrator and said universal bar frame; an actuating lever fulcrumed on said universal bar frame; carriage feeding devices i connections between said carriage feeding devices and said actuating lever; a space bar; connections between said space bar and said actuating lever whereb said actuating lever may be operated whie said universal bar frame and said ribbon vibrator4 remain quies ccent.

15. In a typewriting machine; the combination of a platen carrier; an escapement wheel operatively connected therewith; a dog rocker carrying escapement dogs adapted to co-act with said escapement wheel; a universal bar rock shaft arms extending'therefrom and carrying a universal bar; a ribbon vibrator connected to operate with the universal bar; an actuating lever fulcrumed on one of said arms and having a part adapted to contact with said arm; a space key rock shaft; an arm projecting 4therefrom and normally in contact with said actuating lever; lever arms projecting forwardly from said rock shaft; and a lspace key or bar secured to -the forward ends of said lever arm.

16. In a typewriting machine, the combination of a platen carrier; an escapement wheel operatively connected therewith; a dog rocker carrying escapement dogs adapted to co-act with said escapement wheel a universal bar rock shaft; arms extending therefrom and carrying a universal bar; a ribbon vif brator connected to operate with said universal bar; an actuating lever fulcrumed on one of said arms and having a part adapted to contact with said arm; a space key rock shaft; an arm projecting rearwardly therefrom; arms projecting forwardly therefrom and connected by a space key or bar at their forward ends; and springs adapted to maintain said rearwardly projecting arm and said actuating lever normally in contact with each other.

17. In l,a typewriting machine, the combination of a key actuated universal bar frarne; a space key; carriage feeding devices; and an actuating ever therefor pivoted to said universal bar frame and provided on-one arm with an adjustable contact screw and pro- @5 i I i @neme videdon the other erm With an anti-friction nected te .certain cf the letter feeding devices roll; theuniversal bar frame being operative and ade ted to be actuated by the universal" on the contact screw and the space key being ber; an e spacev key 'also adapted to actnate operative on the anti-friction r'oll. I said lever independently of the universa1loar. y 41 5@ 5 18. In a typewriting machine,- 'the combb' Signed at Syracuse, in the county of Ononnation of a peper carriage, letter feeding deda a, and State ofNeW York, this 5th day cf vices therefor; printing mechanism including Ju y A. 1905.

s, 'series of key levers; a universal bal` ar- EDWIN l-ARNEY;T

ranged vbeneath the key levers; a ribbon vi- Witnesses: e l 10 bretcr;'connections between the ribbon vi- W. J. LOGAN,

brator and the universal ber; an lever conl H. A. CUMENT. *I

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