US954843A

US954843A - Type-writing machine.

Info

Publication number: US954843A
Application number: US52762909A
Authority: US
Inventors: Oscar Woodward
Original assignee: YOST WRITING MACHINE CO
Current assignee: YOST WRITING MACHINE CO
Priority date: 1909-11-12
Filing date: 1909-11-12
Publication date: 1910-04-12
Anticipated expiration: 1927-04-12

Description

0. WOODWARD. TYPE WRITING MACHINE.

APPLICATION FILED HOV.12, 19Q9 Patented Apr. 12, 1910.

\A/ITNEEEEE:

TTEIRNEY O. WOODWARD.

TYPE WRITING MACHINE.

urmonnm FILED NOV. 12, I909.

954,843. Pat nted Apr. 12, 1910.

3 SEEEISSHEB'I 2.

'7' r7" IIIIIIIIIIIIIII o i \o \/\/ITNEEEEE= INVENTEIR wiv- O. WOODWARD.

TYPE WRITING MACHINE. BPFLIOATION FILED rmv.12,19o9,

Patented Apr. 12, 1910.

- BSHEETS-SHEET 3.

INVENTEIR PATENT oscm, woonwinn, or .rroivTcLAm, NEW." J'ERsEY, .n'ssienon r Yosr WRITING 111 0 1 111: COMIPANYIJO'FH ILION, NEW YORK,

To-fall whom {mag tangent? Be it.;k'nownthat .LOsom WOODWARD,

citizenlof theUnited States, andresident of Montclair; inytheFcounty of Essex and State of Ndw'Jersefi'have invented certain new and useful; Improvements in Type-Writing Machines, of whichthe following is a specification.

My invention relates to typewriting' machines and moreparticularly to-line spacing mechanism for such machines.

The present invention-is in thehature of an improvement on the construction disclosed in the patent 'to Arthur NV. X0. 911,275, dated February. 2nd, 1909.

Y The invention consists "in the features of construction, arrangements of parts and com- :binations of devices to behereinafter described and particularly pointed out in the appended claims. I 131%,! In the acompanymg drawings wherein like reference characters indicate correv .Fig.3 and showing sponding partsv in-the various views, Figure 1 is a fragmentary plan View of a carriage equipped with the line spacing devices of my invention. Fig. 2 is a fragmentary end view of thesame with parts sectioned away and parts broken, away. F ig. 3 isa fragmentary top plan view ofthe platen and its espacing mechanism, the parts being shown as they appear when the line spacing pawl is just about to engage the line spacing view corresponding to wheeli Fig.7 4 is a the line spacing pawl a line spacing movecooperating with a linespacing at the completion of meat and i stop. Fig. 5 is'a view corresponding to Fig.

:1 stop set differently.

looliing in the direction 50 4 ;butshowing'the adjustable line spacing Fig. Bis a view corres ending to Fig.4 but showing the ad'ustalil'e linespa'cing stop setjdiiferently rom the positions in which'they are set in Figs. 4 and 5. Figs. 7, 8, 9, 10, 11, 12 and 13 are perspective views showing different portions of theline spacing mechanism, the views being on an enlarged scale. Fig. 14 is an enlargeddetail fragmentary sectional view"'taken on the line of Fig 1 and of, the arrow at said line. "Fig'. is anjenlarged detail front elevation, partly in section, showing the arrestingstop for the line spacing pawl and the means for supportingand adjusting said p i The sane-renames; sup ers fixed being united by across bar 13. A platen drical platenl5. Each end of the Smith in the arm 29 for I ryrn-wlu'rine- Maenmn.

{ilspeeiiication of team-S Patent. Patented Apr. 12,1910. g a ncatibn filed November 12, 1909; Serial in. 527,629. I

guide rails 2 groovedto receive bearing rollwhich are likewise received in oppositely grooved faces of carriage guide or track bars 4. End plates 5 are connected with the guide bars Land have parallel links 6' and 7 "pivoted thereto at 8 and 9- respectively. The forward ends of these links are pivoted at 10 and 11,, respectively, to end plates 12 of the platen frame, the end plates shaft 14 extends through bearing openings in the platen-frame and supports a cylinplaten shaft has a finger wheel 16 fixed thereto and by which the platen may berotated.

' The right-hand end plate of the platen is formed as a line spacing wheel with peripheral teeth 17 and crown teeth .18. A springpressed roller 'detent 19 is mounted on the forward end of a leaf spring 20 secured by a screw 21 to a member 22 .connected to the cross bar 13 by a pin :23. The sp'ringpressed roller detent bears against the peripheral teeth 17 of the line spacing wheel to assure the proper positioning of the platen at each line spacing movement. hand end plate 12 of the platen frameiis provided with an outwardly extending pin 24 which extends through a slot 25 in the platen frame to limit the case shifting movements of the platen. The right-hand end plate 12 of the platen frame is also extended. forwardly to form a bracket arm 26 with a vertical bearing opening extending therethrough, A line spacing lever 27 is formed at its rear end with a bifurcation 28 to pro vide arms 29 and-3O which extend on oppo-' site sidesof the bearing in the supporting hracketarm 26. A chamber 31 is formed the reception of the head of a shouldered pivot screw 82,' the barrel of the screw passing through the bearing opening in the bracket at its threaded end 33 in? a tapped opening 3% in the-arm of the line spacing-lever, the head of the screw closing the 1 chamber 31. A wall'of the chamberjfilfislicut outas indicated at-35't'o receive one 36 ofa coiled spring 37 (contained W1 ii itheicham- ,1;

.105 The oppositeiend. 3 8 of, the

ber 31 and surrounding the barrelfof the pivot'screw' 32. spring is received in' an opening in'theup; per side of the supporting bracl'zet "26, as indicated irrFig. 14. The coildspring 37 is thus connected at one endfto the platen 110 The right-.

arm 26 and engaging frame and at its opposite end to the line spacing lever to restore the line spacing lever to normal position. The bracket 26 is provided with a shoulder orstop 39 (Fig.

3) against which a stop or shoulder 40 .45 of the pivot screw 42 is received in a tapped opening 46 in the line spacing lever the pawl turning on the screw as a pivot and Working within the bifurcated opening 47 formed in the lever. A coiled spring 48 surrounds the screw 45 and is contained within the chamber 41 and one end 49 of this spring is seated within an opening 50 in the line spacing pawl, the other end 51 of the spring be ng seated in a cutut 52 in the line spacing lever. Thus one end of the coiled spring 48 is connected to the line spacing pawl and the other end of the spring is connected to the line spacing lever so as to restore-the line spacing pawl to normal position with reference'to the line spacing lever. From an inspection of Fig. 3, it will be seen that a lug or projection 53 is provided on the line spacing pawl for coiiperation with the bottom wall 54. of the bifurcated portion 47 within which the line spacing pawl works, so as to provide stops between the line spacing pawl and lever to limit the movement of the pawl with reference to the lever in one'direction. A cut-- out 55 is provided in the line spacing pawl and one end wall 56 of this cut-out constitutes a stop for cot'rperation with a stop pin 57 carried by the line spacing lever and extending thro'ugh'the space 47. The end wall or stop 56 and the -sto pin 57 coi perate to limit the movement 0 the pawl with reference to the line spacing lever in an opposite direction from that previously described so that the

stops

56 and 57 limit the movement of the pawl with reference to the line spacing lever in one direction and the stops 53 and 54 limit the movement of the pawl with reference to the line spacing lever in the opposite direction.

From the foregoing description it will be understood that the heads of the pivot screws 32 and 42 close the chambers 31 and 41, respectively, in the line spacing lever so that the

coiled springs

37 and 48 are com pletely housed within said chambers. Moreover, it will be seen that the construction of the parts is such that theymay be readily assembled or disconnected when desired.

The right-hand end plate 12 of the platen frame is tapped to receive a threaded collar spacing pawl.

or sleeve 58 through which a spindle 59 extends and by which the spindle is supported for rotative adjustment. The inner end of the spindle has a head 60 fixed thereto, the head having three inclined engaging surfaces 61, 62 and 63 thereon. The periphery of the head also has index numerals 64 thereon, these index numerals being preferably three in number to correspond to the three engaging faces 61, 62 and 63 and preferably consisting of the

numerals

1, 2 and 3. The right-hand end of the spindle carries a knurled head or finger piece 65 by which the spindle 59 can be turned so as to present any of the contact faces 61, 62 or 63 for-cotiperation with an inclined face 66 on the line spacing pawl. Flattened faces 67, 68 and 69 are provided on the peripher of the head 60 for cooperation with a lea spring 70 secured at one end to a bracket or proj ection 71 on'the platen frame by a screw 72. This detent spring 70 retains the head 60 in any one of the three positions to which it may be turnedin order to bring any one of the three contact faces into position to cooperate with the inclined face 66 on the line The various contact faces 61, 62 and 63 determine the extent of line spacing movement whigh maybe transmitted to the line spacing pawl 44 and causes the line spacing pawl tobe jammed at the last portion of its line spacing movement so as to limit the movement of the line spacing pawl and to lock the line spacing pawl in the teetlv 18 of the line spacing ratchet 1 wheel and thus prevent an overthrow of the platen. An adjustment of the threaded supporting sleeve 58 in the direction of the axis of'the spindle SQ-eifects a minute adjust- A ment of the stop member 60 independently 1 5 .of that afforded-f by a. turning movement of the spindle so as to nicelyregulate the engagement of the line spacing pawl with the ratchet wheel and to compensate for any wear that might take place between the con-' 11o tact faces 61, 62 and 63 of the stop member and the inclined face 66 on the line spacing awl.

What I claim-as new and desire to secure by Letters Patent, is':.j 1. In a typewriting machine, the combination of a platen frame a rotary platen; a line spacing ratchet wheel operativelyconnected with said platen; a line spacin lever journaled on said platen frame and aving a bifurcated portion embracing its journal; a line spacing pawl, said lever also having another bifurcated ortion which receives the pivot end. of sai pawl; and stops carried by said lever for limiting the movement of the pawl relatively to said lever in both directions.

2. In a typewriting machine, the combination of a platen frame; a rotary platen; a line spacing ratchet wheel operatively con- 13o pawl'pivoted on said lever; a limiting stop spring for turning the lever on the platen on the frame for said lever; cooperative stops on the pawl and lever for limiting the movements of thef-pawl relatively to the lever in both directions; a spring for turn ing thepawl' on the lever; and a separate spring for turning the lever on the platen frame and against the limiting stop on theplaten frame.

3. In a typewriting machine, the combinat ion of a platen frame; a rotary platen; a

hne spacing ratchet wheel operatively con- :necte with said platen; a line spacing lever pivoted on said platen frame; a lme spacing pawl pivoted on'sald lever; means for lim tmg. the movement of the'pawl relatively to.

the lever in both directions; a spring for turning the pawl on said lever; a separate frame; a bearing sleeve adjustably mounted in the platen frame; and a pawl stop rotata ble in said bearing sleeve" and having a plurality of stop faces.

4. In a typewriting machine, the combination of a platen'frame; a rotative platen; a line space wheel; a linespace lever pivoted on the platen frame; a pawl pivoted to said lever, the lever havingtwo chambers; a re-' storing spring for theylevercontained and entirely inclosed withinone of the chambers in said lever; and a restoring spring for the pawl contained and entirely inclosed within the other chamber in said lever.

5. In a typewriting machine, the combination of a platen frame;.a rotative platen; a line space wheel; .a line space lever pivoted onthe platen frame; a pawl pivoted to said lever; two chambers, one of which surrounds the pivot for the lever and the other of which surrounds the pivot for the pawl; and coiled springs which are contained within said chambers and which surround said pivots, one of said sprin s being a restoring spring for the lever and the other being a restoring spring for the pawl.

6. In a typewriting machine, the combmation of a rotative platen; a platen frame; a

linespace'wheel; a line space lever; a linev space pawl; two shouldered headed p1vot screws,; one of which COI'lStltlltQS a pivot to pivotally connect the line spacing lever with the platen frame and the other pivotally connecting the line space pawl with said lever; a chamber surrounding each screw; and a coiled, spring contained within each chamber and surrounding the screwtherein,

the heads of the screws closing said chambers.

7 In a typewrit ing machine, the combination of a rotativeplaten; a platen frame; a line space wheel; a line space lever; a lme space pawl; two shouldered headed pivot screws, one of which constitutes a pivot to pivotally connect'the line spacing lever with the platen frame and the other pivotally connecting the line space pawl "with said lever, said lever having a chamber surrounding each screw; and a coiled spring contained within each chamber and surrounding the screw therein, one spring being connected at one end to the lever and at the other end to said pawl, and the other spring being connected at one'end to said lever and at the other end to the platen frame, theheads of the screws closing said chambers.

Signed at the borough of Manhattan, cityof New York, in the county of New York, and State of NewY-ork, this 11th .day of November, A. D. 1909.

' OSCAR WOODIVARD. \Vitnesses:

CHARLES E. SMITH,

E. M. Vents.