US979355A - Type-writing machine. - Google Patents

Description

Patented Dec. 20, 1910.

2 SEEETB-SHEET 1.

F. J. TANNER.

TYPE WRITING MAGHINE.

APPLICATION FILED JUNE 25,1907. 979,355.

jmmmtoz 1 Hfovmu o v F. LEANNER. TYPE WRITING MACHINE.

APPLICATION FILED 511N325, 1907,.

979,355. Patented Dec. 20, 1910.

2 SHEETS-SHEET 2.

10 21 X i Hug \g gb WHHHIHL lIIHW IHHHH IIIHHHHHIHH UNITED sm i'rns PATENT oases.

FRANKJ. m nivan, or scnnnron, PENNSYLVANIA, Ass'renon TO INTERNATIONAL SY ANIA.

Specification of Letters Patent.

TE '1. BOOK COMPANY, OF SCRANTCN, PENNSYLVANIA, A CORPORATIOFI OF PENN- TYPE-WRITING MACHINE.

Application filed June 25, 1907, Serial No. 380,659.

To all whomit may concern:

Be it known that I, FRANK J. TANNER, a citizen of the United States, and resident of Scranton, Lackawanna county, State of Pennsylvania, have invented certain new and useful Improvements in Type-Writing Machines, of which the following is a specifi;

cation.

The present invention relates to improvements in typewriting machines and particularly to the type action or means for moving the type bars against the platen, and will be described in connection'with the accompanying drawing, in which,

Figure 1. isa vertical sectional view through a typewriting machine having a type action embodying the present invention applied thereto, partsof the machine not directly involving the invention being shown more or less conventionally; Fig. 2 is a view of a single type bar and its actuating devices, showing a different form of connection between the key operated lever and sublever; Fig. 3 is a similar view of a slightly different construction, and Fig. 4: illustrates in detail the construction of link preferably employed for connecting the sub-levers, and type bars. i

In the drawings the invention. is shown as embodied in a front strike machine, or a machine of that class in which the type bars are mounted to swing rearwardly against the platen conventionally illustrated at l.

The type bars 2 are each pivotally supported at 3 in a suitable segment 4:.carried by the frame 5 of themachine and the outer ends of said bars are normally supported by a cushion 6 in the ordinary manner. Each type bar is connected by a link 7 with the upper end of a sub-lever 8 which is pivotally supported at itslower end upon a rod 9 extending across the. base of the machine and supporting all of the sub'levers. As shown the sub-levers are substantially upright and the upper portion of each sublever is deflected laterallyas may be required to bring it directly back or in line with the type bar connected thereto. Key operated levers 10 are fulcrnmed upon a rod 11 arranged in front of the series of sublevers and each of said key operated levers is provided at its inner end with a depending arm 12 arranged to bear on a vertical edge of the. co-actmg sub-lever 8. Suitable spring means are provided for returning the parts to normal position shown in full lines in the. drawings.

In the embodiment of the invention illustrated in Fig. 1, a coiled spring 18 connects each of the sub-levers withithe frame or support for the segment a and a leaf spring 19 connected with said frame passes through a loop 20 on the key-operated lever 10. The form and arrangement of the spring may, however, lee-varied and as shown in theembodiment of the invention illustrated in Fig. 2, a single bow spring 13 having its ends connected to the pivot-rod 11 and a stud 21 may be used. lnsteadlof making the extended bearing surface at the inner end of the key operated lever 10 extend continuously throughout the length of the member 12 of said lever, the arm or member may have the form shown in Fig. 2 in which its rear edge is provided with two separated contact portions 14%, 15, adapted to successively bear upon the forward vertical edge of the sub-lever as the key lever is depressed.

A universal bar 16 is arranged in rear of the series of sub-levers and suitably connected with the devices controlling the feed of the typewriter carriage, conventionally illustrated at 17 in a well known manner.

As shown in 1 and 2, the keys '22, are carried by arms integral with the key operated levers 10. However, this construction may be varied and as shown in F g. 3 the keys may be carried by stems 9.3 independently pivoted as at 24 to the frame of the machine and pivotally connected at withthe forward end of the lever 10. In

this construction the key operated lever is arm 12 at the inner end of said lever eX- tends substantially at right'angles to the body thereof instead of being inclined for ward slightly as shown in Figs. 1 and 2.

The link T employed for connecting the sub-levers and type bars is preferably constructed as shown in detail in Fig. i. That is, said link comprises two members each formed from a single blank of sheet metal. The blank forming the main link and which is connected with the type bar has at one end a central ear 26 andlside ears 275 28, while at its opposite end it is bifurcated and provided with two similar cars 29. The blank is so folded that the ears 29 are brought into parallelism and the Patented Dec. 24), 19M).

body of the,

npel'l'nx'es lhewin aline on opposite sides 01 the FilOL' farmed at that end of (he hnlc. The

said section of link extend in plane: 2." .ght angles toeach other and one of the w s the slot formed by the ears 26, 27 and reinforcecl or made of greater Elli-ll than the other. The ntheaf memhw link is provided at one encl. (Eh s ears 30 between which the upper e lh-lever extends and the epposlle end. said member is fomnecl into an epertured linl-z 31, the aperture in which exlends ml right angles to the slot sepa nfjng the en 30, and is adapted to nline with the ape];- lmes at The inner and of the member of the link first deserilnzd. The link members suitably (-mmeuted by telling means.

Having (lesmihed the invention, Whal' i3 elahnml when: and desired to be secured by Le 'tei's Patent is:

1. In a typewriter, the combination 0: 3 a pivelnlly n'mnnted type bar, a sub-lever e0na rn'et or other 1518- nected with the type-bar, a. key one? to en we the azuh PlllQIh :1 pix'oinll v mounted type-hm, :1 snl lever Operating nbonli a fixed pivotal point and connected to the type hm, a lever :11-

Ci to actuate the sub-level", anal 21 he llfll independenily of and connected 1 :he lastsaiql lever.

ln a typewriter, the cmnbinal'ian )l'lliflll, n pivelally mounted type ha 1' M lls inner enn. "zen 215m plied. to em dge of ihe sub. lever 5110i pmnis 1*; IS achmled, and a key am upon a elem nvolinlly snpperteil inclepen lenlilv of said levers and having connection with the aforesaid lever.

In testimony Wherefif l afiix my signature in presence of l'WO FlijllSSfiS. FER Elli J. Til I

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