US1054998A - Type-writing machine. - Google Patents

Description

B. G. STICEZKEY. TYPE WHITIIW; IWAGHINE, APPLICATION FIL R. 21, 1903.

1,054,998. Patented Mar. 4, 1913.

WITNESSfS M// cwz- I MENTOR their on .e Mia.-

BURNHAM C. STICKNEY, OF ELIZABETH, NEW JERSEY, ASSIGNOR T0 UNDERWOOD TYPEWBITER COMPANY. OF NEW YORK, N. L, A CORPORATION OF DELAWARE.

TYPE-WRITING hIACZ-ZINE.

Specification of Letters Patent;

Application filed ilpril 21,

Fatented Mar. at. 13.

1903. Serial No. 153,617.

To all w/w'm Zi may content:

Be it known that l. Bt'nxnmt C. STICK- KEY, a citizen of the United States, and resident of the city of Elizabeth, county of Union, and State of New Jersey, have inented certain new and useful ,iniprove-l ments in Typell'riting Machines, of which the following is a specification.

This invention relates to writing machines, and particularly to the mechanism for controlling the letter-feeding movements of the paper or other carriage; and its principal object is to enable the carriage to feed accurately at high speed, and to avoid liability of blurring of the type impressions.

My inventionconsists in certain teatures of construction and combinations of devices, which will be hereinafter fully described and particularly pointed out in the concluding claims.

In the drawings forming part of this specification, Figure 1 is a rear view of a portion of a type-writing machine, showing a carriagefeedingmechanism and part of a carriage, and illustrating a connection from the type-operating keys or levers to the carriage-feeding mechanism: the parts being in normal position. Fig. is sectional view taken at about the line U-ZU of Fig. 1. Fig. 3 is a. view of a.inoditicatioi1. Figs. 4, 5 and 6 illustrate successive stages in the action of the feeding mechanism. Fig. 7 is a diagrammatic representation of a conventional system of. typewriter type-actions.

My invention may be applied to ,anyvariety of paper or other carriage 1, propelled by ni'eansof a spring-barrel 2 and strap 3 or otherwise, and having an escap'einent or feeding rack 4, which may be either straight, as illustrated, or curved, as a wheel. The rack tooth or teeth may be of any suitable construction. Y

In engagement-with the rack is a dog 5, which extends along the rack and is provided witha tooth 6 for engaging the-rack teeth, and is pivoted upon gudgeons 7,

-which are supported one at each side of the rack upon the ,"upstanding arms 8 of a bracket 9; said dog having upwardly extending ears 10, one at each side of the rec,

which are slotted at 11 for engaging said' .gudgeons; said slots permitting limited play of the dog longitudinally of the rack. Qne

ear ,is prolonged to form an upwardly exnism is operated.

tending arm 12, into the upper end whereot" direction from that in which the carriage and rack are propelled by the superior spring and preferably the relation of spring 13, arn1 12 and dog 5 are such that the same spring also tends to press the tooth 6 into engagementwith the rack teeth, the body 5 and the arm 12 of the dog forming a hell-crank for this purpose. It desired, the upward movement of the dog may be. limited by an overlying stop 15, supported upon a fixture 16 rising-from the usuahtop 'plate 17 of the typewriter, so that when the rack at is lifted it may become disengaged from the dog. thereby releasing the carriage.

Upon an extension 18 of the dog, over which lies said stop 15, is formed at its tip a series offine teeth 19. for engagement with a set of tine ratchet-teeth 20; all of said fine teeth extending in. a direction transverse to thecarriage racks, and the function of the ratchet teeth 20 being to pull the dog down out of engagement with the rack teeth. The teeth 20 are formed upon an operating ratchet member or pawl 21 which is pivoted at 22 upon an arm 23, the latter being mounted at 24 upon a hanger 25 and provided with a shoulder 27 and stop The arm and pawlarc operated in this instance by means of a universal-bar 29 extending transversely above upwardly movable keys or key-levers 30 forming parts of the printing devices, 2'. 6., p

the deviceswhich operate the types or type bars; said universal bar being connected by a link 31 to a pin 32 on said-arm 23, and the link being slotted at 33 where it engages said pin, so asto permit some lost} motion of the keys before the feed mecha- A draw spring3e is attached at 35 to the ratchet member 21 between its ends, and extends diagonally to a point of connection with a, fixture 36, in a manner to pulldown thepawl and the arm 23 after actuation, and alsoto press the ratchet teeth 20 toward the dog tooth or teeth 19; a stop 3'Z tor the ratchet pawl 21 being provided however upon the top .plate, to prevent said pawl from following the dog during thelhackward movement of the so that the f tiq l et may finish its return 2 parts are inthe Fig, 4 position, the dog 5 not being moved-during the printing stroke. Upon the return stroke of the key, type and universal bar, the spring 34' pulls down the pawl, together with the dog, in opposition to "the tensionlof the spring -1"3; Whe1"eby the escapement member or toothfi is disengaged from the cooperating escapement or rack 4, as at Fig. 5. Upon the escapement of the dogfrom the rack, it is instantly snapped .'.back along ,the rack bythe spring l3, as far as permitted by length of 'the""'slot"11,.

whereby the dog teeth 19 are withdrawn from the ratchet 20, ,and the dog is released,

stroke 'independentlyof the dog, and the latter is pressed back into reengag'ement with thefrack l independently of the ratchet 5 the key-operated parts return ng to norma1 position,-and the carriage advancing underthe tension of spr1ng2, carryin with it the dog 5 in opposition to: the-tenslon of spring 13, until the-dog and carriage are arrested by 'the contact of-the gudgeons 7 .with the rear ends of th'slots 1 1, the parts being again brought to the Figal position.

It will. be seen that the dog is. normally I disconnected from the keys, 'in the sense that the 'keys'do notaffect-the dog during their printing st-rokes, and that the period during which the dogis connected to the keys isvery brief, and only sufficient to enable the dog to be disengaged from the rack all of thes subsequent operations of the dog being automatic, -viz its release from the control of the keys, its reengagement with the-rack, and its return to normal position, whereby at the completion of the. carriage movement, the dog is in position for re-actuation during the return-stroke of the next-' op'erated'key. By making these movements of the dog independent of the key move- -'ments,the advantage is secured of speed and certainty of operation; while by having only one rack-releasing dog-movement instead of two as in the usual construction,

ease and speed of operation are-insured? The dog maybe provided ,with only-one tooth1 9', and a single clutch tooth mayibe: used in place of the .clutci ng ratchet 20; but-I prefer to use the fincteeth as illllS-r trated,because of the variations in t ex-l tent of movement of the universal? sates) given by the differentkeys; these variations much/the pawl 21 is elevated during the theprinting stroke in engagement with the dogtooth or teeth 19, and'since the teeth '20 are fine, only a short portion of the return movement of the universal-bar is used in freeing the dog tooth 6 from therack-{so .that the carriage is'promptly released and enabledto complete its feeding movement in time to receive the next type impression in some machines being very-great. Itwill 1 be seen that nomatter how little or how f key stroke, it-is always at the completion of at the correct point, even at the highest speed of operation. To this end of course the tooth 6 should be formed andmounted to dip into the rack to a slight extent only,

so that it can be disengaged by a short .stroke. It will. be perceived further, that the machine is fully adapted for slow operation, since the dog 6 holds the rack positively during the printing stroke; so that no blurring of the type impressions can occur.

iAt Fig. 3 the pawlor dog 5 is mounted upon ani idle link 38, pivoted at 39 to car 40 rising from the top plate 17; said link being provided with cars 41 and 4-2, adapted to contact with stops 43 and 44;..thelink permitting'play of the dog longitudinally. of

the rack, and the stops being adjustable for limiting the extent of the play. It will thus"- be'seen that the dog-disengaging means 20 is movable transversely of the rack and is releasable from the dog by the movemhnt of the latter longitudinally of the rack by the i spring 13; that at Fig. 4 the dog-disengag ing means 20 is;b eginning its return stroke,

and that the dog is held in engagement therewith by the rack- 1 6., if therack,

were pressed'back at said figure, the dog would be moved by spring 13 out of en'- gagement with the ratchet 20, 'soflthat' the latter could not afi'ect it; that the play of the I dog along the rack is less than the extent of the feeding movement of the rack, that is,

less than --thedistance between vadjolning teeth 5; that the (log is cself-releasing fr'om the ratchet 20 and is self-setting to position forreengagement thereby, as distinguished from ordinary escapement mechanisms, in which both the rack-releasing andthe rackreengaging movements of the dogor dogs are controlled 'by the universal bar, the

-latter being key-controlled ;'that the arm- 12 extends. transversely of thera'ck 4;.tha't the key-controlled reciprocatory member. 20; is

movable idly with relation'to the dog dur .ing one stroke, and co-nnectible with the dog during the other stroke, and that the dog is, restored to its normal position independ ently' of said reciprocato'ry member; that;

the 1'1-1eans fyvhich .releases the do from said member 20 isso constructed "as to rendered effective by the rack-disengaging movement;

of the dog; andtha-t' the dog lsrele'ased-frc the' ra ck .bynmans of a "pawl-and-r'atci';

mechanism. which may be made in a great variety of forms.

By the termpawl-and-ratchct mechanism I mean to include any equivalent clutching mechanism one member whereof is movableidle with relation to the dog'5 during onestroke, which may be of variable extent, and always automatically connects with the dog at the initial portion 'ofthe other stroke.

Very many variations other than those above alluded to may be made within the scope of my invention in the construct-ion, arrangement, anddetails of operation of the parts; and portions of my improvements may be used without others.

Having thus described my invention, '1 claim:

1. The combination with a power-driven carriage of an escapement rack, a single dog engageable with and disengageable from the rack and also capable of limited movement longitudinally thereof, and dog-disengaging means movable transversely of the rack and releasable from the dog by the movement of the latter longitudinally of the rack; the dog lieing movable to initial position by the action of said rack thereon.

The combination with a power-driven carriage of an escapement rack. a smgledog,

means for disengaging the dog from the rack. and means for causing the dog to snap bacls upon disengaging from the rack; the dog being releasable from said disengaging means by reason of such snapping movement. and being movable to initial position by the action of said rack thereon.

3. The combination with a power-driven carriage of an escapement rack, a single loose or yielding dog. means for disengaging the dog from the rack. and means operating automatically upon the escape of the rack from the dog. for releasing the latter from the control of said disengagingmeans.

4. The combination with a power-driven carriage of an escapement rack, 11 single loose or yielding dog. and dog-disengaging means with which the dog is held in engagement by the rack: the dog being releasable from said disengaging means.

5. The combination with a power-driven carriage of an escapement rack. a single loose or yielding dog, dog-disengaging means, and a spring for withdrawing the dog from the control of said disengaging neans; the dog being movable by the rack into position for actuation by' said disengaging means. Y

6. The combination with a-power-driven carriage of an escapementrack, a single dog which is'spring-pressedboz-h into engagement with said rack and also in a direction contrary to that of the feed of said rack; and means for disen a ing the dog from the rack; said (108 itsel eing releasable from said disengaging means by a backward movement along the rack, and being movable to initial position by the action of the rack.

7. The combination with apower-driven carriage of an escapement rack, a single dog having a play longitudinally of the rack for a distance less than the extent of feeding.

movement of the rack, said dog being springpressed both into engagement with said rack and also in a backward direction: and dogdisengaging means with which the dog is held in connection by the rack pressure upon the dog; said. dog being releasable from said disengaging means by a backward movement along the rack, and being movable to initial position by the action of the rack.

8. The combination witha power-drivencarriage of an escapement rack,-a singledog pivotally mounted at its rear end and ex tendlngalong the rack and having a tooth for engagement with the rack. means ton pressing said tooth into the rack and pressing the dog in a backward direction. and

means movable transversely of the rack for disengaging said dog from the rack; said dog being releasable from said disengaging means by reason of its backward movement when it escapes from the rack. and being movable to initial position by the action of the rack.

9. The combination with a power-driven carriage, of an escapement rack, a pivotally mounted yielding or loose dog which spring-pressed both into engagement with said rack and also in a backward direction longitudinally of the rack: and an actuating member mounted for engagement with said dog to disengage the latter from the rack; said dog being mounted for backward movement along the rack and being released fromthe control of said actuating member by means of such backward movement, and means being provided for restoring the control of the actuating member over the dog.

10. The combination with a power-driven carriage. of an escapem ent rack. a single dogfa ratchet member mounted for engage ment with the dog to disengage the latter from the'rack, and dog-releasing means. comprising means for. causing the dog to snap back for a limited distance along the rack upon escapement from the latter; the dog being movable to initial posit-ion by the :action of the rack thereon.

11. The combination with a power-driven carriage of an escapementrackp a single dog, and means for forcing the dog out of engagement with the rack; said dog being spring-released from said forcing means, and setby the rack to position for reengagement by said forcing means.

12. The combination with a power-drivencarriage of an esca-pement' rack, a dog and 45- carriage, of an escapement rack, a dog'pivwith the dog tofo' rce the latter out of en-.

" engagement with the rack, said dog being capable of limited play along the rack,

ratchet member for disengagingthe dog from the rack, a spring which presses said tooth into engagement with the rack and also forces the dog away from said ratchet I member and back along the rack when disengagedfrom thelatter.

1s. The combination with a'power-driven carriage of an escapementrack, a dog pivotally mounted and extending along therack and having a tooth for engagement with the rack, said dog being capable of a limited backward movement along the rack; means,

including a ratchet member, for disengag- 2'5 ing the dog fromthe rack; and means for yieldingly pressing said dogbothinto engagement witl1 the rack and in a backward direction; so as to disengage the dog from theratchet member when the latter disen- 30 gages the dog from the rack. 15. The combination with a power-driven carriage of an escapement rack, a dog .piv-' qtally mounted and extending along the rack an having a tooth for engagement with the '35 rack; a slot. being provided at the pivotof the dog for permitting backward play of thejdog along the rack; a ratchet membery for. disengaging the dog fromthe rack, and

a 'springfor pressing said dog bothinto en- 40' gagement with the rack and in a backward direction so as to'disengage the dog from the ratchet member when the latter disen- I gages thedog from the rack. '16. The combination with a power dr-iven "'o'tallymounted and extending along the rack and having a tooth for engagement withthe rack, and being capable of limited backward play along the: rack; a ratchet member fordisengaging-the dog'from the rack; a

spring; and an arm upon said-dog to which said spring is connected; .said arm extending transversely of -the rack and in such a direction that the pressure of the spring thereon both forces-the dog into engagement j with' the rack and uponrelease of the dog from the rackforces the'do'g away from s aid ratchet member back along the rack.

17.;In atypewriting' machine, the combination'with a power-drivencarriageof an with said do'g' during the other stroke for disg.

escapement rack, a dog therefor, a key-controlled reciprocatoryf'member which moves idly with relation to said dog during the printing stroke of the key, means for 0011- nect-ing said member with said dog during the returnstroke of the key, to disengage the dogfrom the rack, and means for restoring the dog to its normal position.-

' 19. In a typewritin machine,.the combi nation with a powerr ven carriage, of an escapement rack, a loose or yielding dog, a

clutch for disengaging the dog from the;

rack, and means dependent upon such disengagement for efiecting disengagement oi the dogfrom the clutch.

esoapement rack, a loose or yielding dog,

and a ratchet member to control the rack releasing. movement ofsaid dog. v '21. In a typewriting' machine, the combination with a carriage of a rack and an escapement mechanism therefor. including a dog, a ratchet member for operating said dog, and means for releasing the dog from the control of the ratchet member.

.22. In atypewriting machine, the combi- I nation with a carriage of means for propel ling the same, a rack, and anescapement .mechanism comprising a dog, afratchet inembe'r for operating. the dog, means for releasing the-dog fromthe control of the ratchet member, and a re'turning spring for the dog; said releasing means being so 'con .structed as to be rendered efi'ective by the rack-disengaging movement of the dog.

ios

23, In atypewritin -machine, the-combi nation with a powerrivencarriage of an escapement rack, a pivotally mounted clog whichis spring-pressedboth into engageinent'with said rack and also in a backward backward movement along the rack, and being releasable from the control of said ratchet member by reason of'such backward movement.

- 24. In a typewriting machine," the combination with a power-driven carriage and an escapement rack, of a dog, and a ratchet member for, forcing the dog out of engage ment with the rack; said dog being springreleased from said' ratchet member, and ad.- vanced by the rack to normal position.

eioapement rack, a dog therefor, a key-cont with'therack, and being capable of limited from the rack; said dog being mounted for a v p 85 20. in a typewrltlng machine, the combl nation with a power-driven carriage of anbackward play along the rack; means ror yieldingly pressing said dog both into engagement with the rack,and in a. backward direction; and a ratchet member for disengaging the dog from the rack; the dog being releasable from the control of said ratchet member by reason of its backward movement at its escape from the rack.

In a. typewriting machine, the combir0 nation with a power-driven carriage of an escapement rack, a dog pivotally mounted and extending along the rack and having a tooth for engagement with the rack, and being capable of limited backward play along the rack; means for yieldingly pressing said dog both into engagement with the rack and in a backward direction; an extension upon said dog beyond said tooth; and a key-controlled ratchet mounted for engagement with a tooth which is provided upon said extension; the dog being releasable from the control of said ratchet by reason of its backward movement at its escape from the rack.

:2". in a typewriting machine, the combination with a power-driven carriage of an ement r ck, a dog pivotally mounted along the rack and having a gement with the rack, and be-. r limited backward playalong means for yieldingly pressin said dog both into engagement with the rack and in a backward direction a keyoperated arm; a ratchet pivoted upon sa so arm; a spring for pres l i toward said dog; step movement or the ratchet out. 1 of said'spring; and'a tooth upon u for engagement by said ratchet; the dog so being releasable from the control of said ratchet by reason ofits backward movement 'ts escape from the rack.

In a typewriting machine, the combi- -n with a carriage of a rack,. anescapel mechanism therefor including a dog, ie-operating keys, a ratchet member for operating saidedog, said ratchet member being connected by a lost-motion construction to said keys, and means for releasing the dog from the control of the ratchet member. 29. In a typewriting machine, the co-mbi nation with a power-driven carriage of an escapement rack, a single dog, means for disengaging the dog from the rack, means operating automatically upon the escape of the rack 'it'rom the d0g,'for releasing the lattax: from the control of said disengagingmeans, and means for releasing the rack and carriage from the control'of the'dog; the dog being movable to initial position by the action of said rack thereon.

30. The combination of a carriage, a power-driven rack, 21 single yielding dog, and dog-disengaging means from whichihe nation with'a carriage and a reciprocating dog is spring-released upon disengagement ofthe dog from the rack.

31. The combination with the carriage and powerriven means for propelling the same, of a rack, and a loose yielding single dog which holds the rack and is caused to release the raclt'by the action of the key, so that the rack is free to move, and automatically reengages the rack by means or" a spring to prevent the same from moving more than one space.

32. The combination with a spring-pro pelled carriage having an escapement rack, of a loose or yielding dog and a ratchet member for the dog, the dog escaping from i the raclr'and immediately from the ratchet member, and arresting, the rack independently of the ratchet member.

33. In a typewriting machine havinga rack, the combination of a dog having a tooth 6 to engage the rack, and a slot 11 to engage a pivot, and an arm 1:2 connected to a spring '18, and a stop 15 for the dog, and means to pull the dog out pf the rack and releasethe dog from the pulling means.

3%. In a typewriting machine, the combination with a universal bar, of a key-operated ratchet member 21 having a spring 3%, and a dog first operable by and then releasable from said member 21 to "feed the carriage, so that'the dog may return to normal position in advance or the retnrn'stroke of the ratchet member.

In a typewrlting machine, the combinniversal bar operated by the keys, of: a carriage-feeding device which remains station during one stroke of the universal bar, and means to enable the universal bar at any portion of its other stroke to efiect the complete operation of the carriage'feedingdevice.

36. In a typewriting machine, the combination with a carriage escapementrack 4 and an escapement dog 5 having a ratchet tooth 6, a dog spring 13 and teeth 19, of a dog-operating ratchet member having a returning spring 34, and pivoted upon an op erating arm 28 provided with a stop28.

37. In a 'typewriting machine, the'combination of a'dog 5, means for regulating both the forward and backward strokes thereof, a carriage racl -engageable thereby, means for disengaging the dog from thecarriage, and a spring to automatically release'the dog from the disengaging means upon being released from the rack.

we 38. In a typewriting machine, the combination with a power driven rack, of a feeding dog loosely mounted oh a ivot, a sprin tending to move said dog bodily backwar along the rack and also up into engagement with the rack, the dog being loosely mounted to permit unlimited bodily movement backward'alongthe rack, and means disengagethe dog from the rack.-

39. In 'a typewriting machine, the combi nation with a power-driven carriage rack, of a key-operated universal bar, a clutching- I mechanism operated by said universal bar,

anda feeding mechanism operated by said clutching-mechanism,- and including a part which releases the clutching mechanism.

when the feeding mechanism 'is released from the rack. v i

40. In a typewriting machine, the combination of an escapement member; a universal bar; means connecting said universal barnormally with said escapement member;

and means for automatically disconnecting said connecting means. 4 v

41. In a typewriting machine, the combination of an escapement member; a universal bar; means for actuating said universal bar; means for normally connecting said universal bar with said escapement member; and means for disconnecting said connecting means while the universal bar is being returned to normal position. 5

L2. In a typewriting machine, the combination of-an escapement member; a universal bar; a clutch normally operative; means connecting said universal bar with said clutch; means connecting said escapement member wi said clutch; and means for operating said clutch to disconnect said universal bar from said'escapement member.

43. In a typewriting machine, the combination of an escapement rackor member; avsingle escapement dog; a universal bar;- a clutch; means connecting said. universal bar with said clutch; means connecting said escapement dog with said clutch; means for operating said clutch to disconnect said universal bar from said "escapement dog; and

means for operating said clutch to cause it to reconnect said universal bar wlth said escapement dog.

44. In a typewrlting ,machi'ne, the combination of an escapement rack or member;

a single escapement dog; a universal bar; a

' clutch; means connecting said universal bar with said clutch, means connecting saidescapement dog with said clutch; and means for operating said clutch to alternately connect and disconnect said universal bar and said escapement dog.

45. In a typewriting machine,'the combiiiation of an escapement rack or member; a single escapement dog; a universal bar; means for causing said universal bar and said escapement dog to move in unison; and

means for automatically disconnecting said universal bar from said escapement' dog. 46. In a typewriting machine,'thecombination of acarriage; escapement mechanism comprising a stepping or feed dog and a rack member with which said feed dog is normally engaged; printing devices which operate staid:- i'es'c'ape'ment" mechanism; and

means for causing the feeding of the carriage in'letter-space fdirection during the return-of said printing devices.

47.111 a typewriting machine,'the com-' bination of a carriage, escapement members comprising a' feed member; printing devices; a universal b'a'r operative by said I 8 print ng devices; means normally connecting said universal bar positively with said feed member; and means for disconnecting said universal bar from said 'feed'member during the return movement of said printing devices.

48.'In a typewriting machine, the com-- bination of a carriage; an escapement device; printing devices; a universal bar; means normally connecting said universal bar'with said escapement device; and means for disconnecting said universal bar from the escapement device at'the beginning of movement of a printingdevice in one direc-' tionand to disconnect the connected parts during movement in the opposite direction.

50. In a typewriting machine, the combination of an escapement-rack or member; an escapement dog; a universal bar; and

means adapted toconn'ect'said escapement Y dog with said universal bar normally and durlng bar, so that said dog is thereafter free to move independently.

51. In a typewriting machine, the com:

bination of an escapementmember; a universal bar; and a clutch which is adapted to' connect said universal bar and said escapement member during. movement of the universal bar in one directlon and to disconnect the connected part at the'revei sal of the direction of movement of the universal bar.

52. In a typewriting machine, the combination of a carriage, escapement mechanism comprising a stepping or feed dog and a rack member with which said feed dog is normally engaged; printing devices "for operating said escapement mechanism; and

means for causing the feeding of the can riage' in letter space direction during the return of any oiisaid printing devices.

53. In a typewriting machine, the combination of a carriage; escapement members comprising a feed member; printing devicesmeans connectin said rintin de- 7 b .b

the first half of. its movement and which is adapted to disconnect the connected dog by further movement of said universal LOQAJWE viccs posiii v. with said feeding escapemember.

54.. in s typewriting machine, the com binstion ozia carriage; eecapement members comprising a feeding member; printing de-v mittent end a universal bar opera vices; msins connecting ssid printing devices positively with said feedin member; and means for disconnecting ssi printing devices at the beginnin of their'return movement fromssid feeding member.

55. In a typewriting machine, the combinotion of s power-driven carriage an es: capement device therefor; rint' "devices; a universal bar operable y ssi ,printin devices; a positive connection between sa'i universal bar and said escapement device; and means for breaking said connection during'the operation of t e printing devices.

:36. In a typewriting machine, the combination of a wer-driven carriage; an escapement device therefor' rinting devices'.

bi b each of sai printins. devices and adapts to be interl y connected positively withsaid escspement device during the operation of the machine.

57. In a typcwriting machine, the combinstion of cscspem'nt members; a, universal bar; means normally connecting said univsrsel her with certain of said escnvoment members; and means for eutomaticsily disconnecting said connecting means. 7

58. In a typcwriting machine, the combinntion of cscapement members; a universal bar; a. normally operative clutch; means connecting said universal bar with said clutch; means connecting certain of said escapement members with said clutch and means for operating said clutch to disconncct said universai bar from said last named escnpcmnt member.

60. In a typewriting machine the combination-of escapement members; a universal bar; a clutch" means connecting said universnl'bnr with said clutch; means connect, ing certain of said escapement members with said clutch; means for operating said clutch to disconnect said universal bar from said is. t named escspement members; and means for operating said clutch to cause it to reconnectsaid universal bar with said escapemono members. I

(SO. in s typewriting machine, the combination of cscapcmcnt members; a universal bar; a clutch means connecting said unis vcrsal bar with said clutch; means connecting certain of said escnpement members with said clutch: and means for operating said, ctntch to slternstniy connect and disconnect Said universal her and said last named eecscement ea. As a .tyi cewriting machine, the oombination of 'escapemeht members; a universal bur; means for causing said universal bar and certain of said escapement members to move in unison; and means for automaticallv disconnecting said universal bar from said last named. escspement member.

62. Ina typewriting machine, the combination of escarpment members; sumverssl her; and mesns adapted to connect certa n of said escspeinent ineinberswith ssid umversnl bsr ncrmsilvniid during the first half of their movement end which is adepted to disconnect the connected pests by the reverssLof the direction of movement of scidparts-so that said parts are thereafter free to move independently. I

63. In a typewriting machine, the combination of escepement members; a universal bar; and a. clutchv which is adapted to connectssid universal bar and certain of said escapement members normally and durin movement of the parts in one direction an to disconnect the connected parts by the reversal of the direction of movement.

64. In a typewrit-ing machine, the combination of s carriage, a. spring constantly tending to draw said carriage in one direction, a single cscapement rack, a single dog controlling the motion of said rack under the impulse of said spring, and means for moving said dog out of end into engage ment with said rack once onlyst each operetion of said escspement.

65. In a typewriting machine, the combination of a carriage, s single escs ement engagement with said rack, said operating devices including a hook, and means for unhooking said hook and thus disconnecting said dog from said operating devices when said dog is moved out. of engagement with said rack.

(ii. In a typewriting machine, the combination of a motor-driven carriage, a single escupement rack, 8. single dog controlling said rack, a carrier on which said dog is movubly mounted, a sprin tending to move said do in 0p osition to tfimour e motor means or wit drawing said dog, rom said rack, and a snap-oil connection between said dog and said withdrawing means, said snapofi connection being operated by said spring.

- 68. In 1 typewriting machine, the combination of a carriage, an escapement rack, a dog ior controlling said reck,printing keys,

connection ii'ith .said dog whereb apring withdraws said dog from-said rackburing' the return stroke of said universal 1. 69. In a typewriting machine, th

nation of printing keys, a carriage, a'single controlling said rack, means for withdrawing said (7 :g l

escapement rack, 11 single do stroke 0 a key restorin said pendent y of sai said saidrac said combi- Witnesses from'en agement with said rack on the up and means for automatically to en eg1ng position indewith rawing means when 1:

dog moves out of engagement with BURNHAM c. STICKNE Y.

SAMUEL R. OGDEN, LIIDA Ross.

Copies of this patent n ay be obtained for he cents each, by addressing the "Commissioner at ?etents,

Washington, D. C.

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