US980273A

US980273A - Type-writing machine.

Info

Publication number: US980273A
Application number: US55349510A
Authority: US
Inventors: Ward S Ireland
Original assignee: Individual
Current assignee: Individual
Priority date: 1910-04-05
Filing date: 1910-04-05
Publication date: 1911-01-03
Anticipated expiration: 1928-01-03

Description

wps. IRELAND.

TYPE WRITING MACHINE. APBLIUATION F ILED APR. 6, 1910.

Patented Jan. 3, 1911.

2 SHEETS-$11331 1.

R Ilium m4 I'll W W Y M, 7

I I Atjorney v:-

@W. S. IRELAND. TYPE WRITING MACHINE.

I APPLICATION TILED APR. 5, 1910. 980,273, Patented Jan. 3, 1911.

2 SHEETS-SHEBT 2. 1/7 .5.

WITNESSES INVENTOR Attorney 'rYrE-wnrrmo maonnm Specification of- Letters ratcnt.

wann s, IRELAND, or DALLAS; rams.

Patented Jan. 3, 1911.

a 'ncaean'mca s in 5, rain. serial no. 553,495.

To all-whomii concern:v

Be it known that I, WARD S. Iii'nnann, of

Dallas, in the'county of Dallas and State of- Texas, have .invented certain. new and useful Im rovements' in Type-WV'ritin Machines; an I dohereby declare the fol owing to be a full, clear, and exact description of the invention, such as will enable others skilled- .in the art to which it appertains to make and use the same.

This invention relates to improvements in typewriting machines and more particularly to such as are adapted for stenographic writing,- t-he object of my present invention being to provide simple andefiicient means for feeding the paper sheet or strip progressively at each manipulation of a key or keys.

A further object 'is to provide eflicient means for feeding the paper into the machine and at the same time avoid conflict between the paper and the inking ribbon.

With these and other objects in View the invention consists in certain 'novelfeatures of construction and combinations of parts as hereinafter set forth and pointedout in the claims. p 1

In the accompanying drawings; Figure 'l is a longitudinal sectional View showing a portion of a typewriting machine and illustrating the application of my improvements thereto. Fig. 2 is a detail sectional view of the feed mechanism showing parts in position to grip the paper sheet or strip for feed I ing the same over the platen, and also showing different positions of the devices for raising the inking ribbonand for operating the platen to feedthe paper stripinto themachine. Fig. '3 is a view showing a portion of the-frame in section and the paper feed mechanism in rear elevation, and Fig. i is a plan view. V j 1 represents the main frame of the machine, within whi'ch a supplemental frame 2 45*- is supported by means o transverse rods 3, the latter bein secured at their-respective ends to the'si e walls of the main frame. These transverse rods 3 may be threaded for the accommodation of nuts 4. whereby-the supplemental frame 2 can be properly adjusted and secured within the main frame of the machine. The side plates of the frame 2 are provided with bearings for a shaft 5 which is rigidly secured near its ends to said side plates and 'assistsjin maintaining the latter rigid. A platen roller 6 is mounted to freely rotate on the shaft 5 and in order to reduce hereinafter explained.

the resistance to the rotation of this roller, A

shown in dotted lines in Fig. 1. A sheet metal guide plate .8 partially embraces the platen ball bearings 7 will preferably be provided, as

roller. 6 and, extending rearwardly. there-- .fronnis secured toa flange 9 near the rear;

end of the main frame 1 and this guide plate is providedJdirectlY under the platen roller, with an elongated slot 10, for 'a' purpose An inking ribbon 11' asses over the platen roller 6 and under gui e wheels, such as indicated at 12, but the mechanism for operating this inking ribbon is not shown'and will not be described as the same constitutes no part of the inventionembodied in this application.

A series of key-bars, one of which shown in elevationat 13, Fig. 1, is mounted in the lower portion of the frame-work and maintained normally'elevat'ed by means of springs such as shown at 14:. Type-bars 15 are pivotally mounted in theupper forward portlon of-the framework and project over the platen 'roller 6,-said 'type-ba-rs'bein'g prov ded at their freeends with suitable lett'ersor characters, as shown at 16 Fig; 1. The type-bars are connected with the eybars by means of adjustable rods '17 and the springs 14: which retain the key-barsele vated also serve to maintain the type-bars normally raised. The key-bars are provided with'finger pieces or buttons,as at 17 for operatin them to'cause the type-bars to descend an engaging the inking ribbon, causean impression to be made upon the paper strip passing over the platen roller.

A transverse shaft 18 is mounted at its ends in the side walls of the main frame 1 and passes through the rear lower portion of-thesupplemental frame 2; This shaft is provided with two fixed arms 19 near the re spective ends thereof and with these arms e upper ends of rods 20 are 'connected,, the lower ends of said rods being attached 'to;a universal bar 21 extending transversely across the lower portion of the machine directly under the key-bars 13 and maintained against displacement bymeans of lugs 22 depending-from the key-bars 13 ;Eltrespective' ends of the series of; key-bars.

- The depending arms of a frame 23 are loosely inounted at their lower ends uponthe shaft 18 ad'acent to but outside of the side plates of t e frame 2 and in order to prevent lateral: displacement of this loosely bell-cranks the de endin arm of a frame 27.

is pivotall attac 16d. prings 28 are suitably attac ed at one end to a fixed part of the framework and at their other ends to the depending arms of the bell-cranks 26,-

1 ell-oranksi-n a direction to ress the crossbar of the frame 27 upwardly against the cross-bar of the loosely mounted frame 23.

Movement of the cross-bar of frame 27 rearwardlybeyond the cross-har ot frame 23 is prevented by means of pins 29 depending from the latter, and forward movement of of the sheet metal .i above and below said said frames 2327 is limited by fixed pins 27 and 27 i Paper enters the machine from a supply roll 30 having its trunnions mounted in arms 31 attached to the rear port-ion of the main frame 1' and is guided around the platen roller and under the inking ribbon by means guide 8. The. paper strip or sheet 32; after passing over the platen roller, as shown'in Fig. l, is carried through the frames 23 and 27s0 that the cross-bars of these frames will be disposed respectively paper strip or sheet. The

frames

23 and 27 cooperate to constitute a gripping paper. feed. When one or any number .of the key-bars .13 isdepressed, motion will be transmitted through the medium of the universal bar 21, rods 20 and arms 19 to the shaft 18 for turning the lat ter. The bell-cranks 26, being secured to the shaft 18, will also be turned and the frame 27 will be moved downwardly and carried forwardly, the loosely mounted frame 23 being caused to follow it by the action of the weighted arm'25. a key-bar is depressed the cross-bar of the frame 27 will be moved away from the press the latter against the crosscross-har ot the frame 23 and both of said frames caused to move forwardly without active engagement with the pa er sheet or strip. As soon' as the key-bar as been released, the frame 27 will be caused to move upwardly by theaction of the springs 28 and its cross-bar to cooperate with the crossbar of the ,-frame 23 to grip the aper and ar of the frame 23 sufliciently to cause the latter to move rearwardly wlth the frame 27. During such rearward movement of the frames 23 and'27 with the paper sheet or strip gripped between their cross-bars, said paper strip or sheet will be fed the distance of one line of writing. In order 'tovprev'en t retrograde movement of the paper sheet or strip saidasprings normally tending to turn the- Thus when seams weighted arm 39 as clearly shown in Figs. 1 and 2. From this construct on and arrangement of parts, it. is apparent that the paper strip or sheet will pass freely between the fingers 33 and 3e dur ng the rearward feeding movement of the

gripping frames

23 and 27, but that said fingers will efi'ectually revent movement of the strip or sheet w en the gripping frames are moving toward'the platen roller. I I

In order to facilitate the ready insertion of the paper into the machine in the first instance, the devices now to be described will be employed. 'It will be recalled that the platen roller, durin the normal operation of the'machine is fine to rotate but when the paper is to be inserted into the machine itis desirable to cause the positive rotation of the said platen roller and to'raiset'he ink- -ing' ribbon outof the-way of the incoming edge or end of the paper sheet or strip. A loiigit-udinally movable shaft 40 is mounted in the side plates of the frame 2 and pro,

'vided with a spur wheeler-l to. mesh with a similar wheel 42 on the platen roller 6. During the normal operation of the machine, the shaft 40 is pressed in a direction to retain the wheel 41 out of mesh with the wheel 42,- by means of a spring 43. The shaft 40 is extended beyond the side of the main frame and provided: at its end with a knob 44 for moving it longitudinally to cause the wheel 41 to mesh with the wheel 42 and to turn said wheel for positively imparting motion to the platen roller. Below the shaft 40, a shaft 45 is located and provided with rearwardly projecting arms 46 in the free ends of which a roller 47 is mounted and this roller is maintained, during the normal operation of the machine,

out of contact with the platen rol-ler by the engagementofarm 48 projecting from the shaft 45 with the shaft 40. Acam collar -19 is secured to the shaft 40 sol, that when the latter is moved longitudinally, the engagement of said camwith the arm 48 will cause the shaft 45 to be turned'andthe roller 47 to be raised sufficiently the slot or opening 10 in the guide plate 8 and engage the latenroller. VVhen the shaft 40 is rotate the paper strip, with its paper passingover the finger 34, by means of a to enter end presented at the juncture. of the laten posiand,

roller with the roller 47 will be move tively by the rotation of these. rollers roller; under the inking rihbo'n and itcan then be readily threaded through the grip ping frames 23'27. v

. A shaft 50 is loosely mounted in the frame 2 near the platen roller and provided with:

rojecting arms 51 disposed be rear wardly yond the en s of'the' platenroller and under '.ment 'of'a cam 54 on saidshaft.

guided by the curved portion of the plate 8 will he moved around .and over the laten the inkin' ribbon; Theshaft 50 is alsoprovided wit a'defpend-ing arm 53 which passesbeyo nd'theisha $0 audit! the path ofn10Ve shaft 40 is moved longitudinally for positively operating the laten roller-as above explained,, the cam 5 "will engage the arm 53 so as to turn thefshaft- 50fand itaise the arms 51 to elevate the inking ribbon out of to. restrict myself the way of the incoming edge of the-paper strip or sheet and permit the latter to freelypass under the inking ribbon'without da nger of conflict with the'lat-ter.

Slight changes might be" ade. in the 11etails of construction'of nay invention with out departing from the spirit, thereof or limiting its scope and hence I- (lonot wish to theprecise details herein set forth.

. Having fully,describedjmyinvention what nation of two frames mounted independentlyof each other, .means' l'connected with one of said v frames-for positively operating'it toward andfiaway from the-other to grlpo'r release a -'pap'er strip ;or sheet, and means for. movin said frames simultaneously in dne direction or the other.

3. Ina paper .feed meehan-1s1n;-'t'he c0mbi-v nation with a' shaft, a frame loosely mounted thereon, means normally tending ,to a swingsaid frame forwardly, crank arms fixed to said shaft a'frame connected with said crank-arms and cooperating with the secured to said shaftand connected with the loosely mounted frame, means for moving the cross-bar of one ofsaid frames-relatively tothe cross-bar of the other to grip or re leasea paper strip or sheetgand means for simultaneously inovingbo'th of said frames .in' one direction or the-other;

4. In a paper feeding mechanism, the combination "-with a shaft and-means for oscillating' the samepof two gripping frames having their cross-bars in position to co;

operate with each other one of-said gripping frames mounted loosels on said shaft andprovided-"with a weighted arm', bell-cranks When the neously.

i r feedpcomprising two.

frames *sinnil-ta'neously.

other grippingframe, and springs connected with the other arms of said bellcranks.

' '5, In a paper feeding anechanism, the combination'witha shaft and means for oscillating the sanleyof bell-cranks attached to said shaftftwo gripping frames, one mounted loosely on the shaft and the other con 'nected with said sell-cranks,flthe' crossbar of the last mentioned frame "adapted to cooperate with-the. cross-bar of the loosely mounted frame'to grip a paper strip and move said l'oosely'mounted frame nearwardly with the paper strip, meanstending normally t'o move thenloosely m'ounted frame forwardly, andsprings col 'nectedi with said bell-cranks;

. [6i 'In' a 'pa'per feeding mechanism, the

combination a with two gripping, frames mounted lndependently "of each other, of means for positively moving one of said' gripping frames relativelyto'the otherto grip or releasefapaper strip, and means for osc llatlng said gripping frames simulta- I 17; In 'a-i paper feeding mechanism; the combination with two independently mountto cctiperate to grip a paper-strip, pins proed frames having their.cross-barsdisposed jeoting from the crossbar of one frame to he engaged by {the cross-bar of the other} frame, means for moving one of said frames relatively, to the other to'grip or rel'e'ase the paper strip' and means for oscillating. said 8. In a paper feeding.mechanismpthe -com-binatiofn with oscillatory feeding devices for gripping a'strip ofpaper to feed the same step 'by'step. in one direction, of means for preventing movement of the strip in reverse direction, "said means comprising a fixed finger over which the strip of paper passes, and a weighted fingerto press upon.

the paper over vthe fixed finger-4 9. In paper feeding 'meehanism for type- 1 writingllnachi'nes; the combinationwith'a platen roller mounted to rotate freely during the normal operation of-the machine, and means for feeding a paper strip past said freely rotatable platen roller, of means for posltively rotating said platen roller to start the feeding of a strip of paper over the same,

and means for retaining said platen operating means normallyout of operative relation to theplaten.

. 10. In paper feeding mechanism for type-- platen'roller mounted to rotate freely and meansfor movin a strip of paper past said platen roller to eed sai'd'stri step 'by'step,

"of agu ide partially embracing the platen roller and having an openin therein, a roller disposed below' said opening and-non mally out of engagement with'the platen platen roller, a

roller, a spur wheel on the shaft mounted adjacent "to the platen roller,

"Writing machines, the combination with :1

iao

a spur Wheel on-said shaft, means for normally maintaining said spur wheels out of mesh, means for moving said shaft longitudinally to place said spur wheels into mesh with each other, and means cooperating with said shaftto raise the roller below the platen roller to cooperate with the latter to feed the paper strip around the platen roller when said shaft is rotated.

11. In paper feeding mechanism for typewriting machines, the combination with a platen rolle'r mounted to normally rotate freely, and a spurwheel carried by said platen roller, of a guide plate partially embracing said platen and provided with an opening below the same, a longitudinally movable shaft, a spur wheel thereon normally out of mesh with the spur wheel on the platen roller, a cam on saul shaft, a shaft mounted below the first mentioned shaft and provlded with rearwardly pro ec-tn1g arms and with an upwardly projecting arm, the

latter being disposed in position to be moved ing witnesses.

by theoam on the first mentioned shaft, and

a roller carried by said rearwardly projectfreely and an inking ribbon over said platen roller, a feed roller, means for positively rotating the platen roller, means for raising the inking ribbon, means formoring all. of said first mentioned means into operative positions, and means for normally retaining them out of operative position.

In testimony whereof, I have signed this specification in the presence of two subscrib- IVARD S'. IRELAN D. it-messes S. G. NOTTINGHAM, GEO. F. DO\VNING.