US1153959A - Type-writing machine. - Google Patents

Description

M. B. SARGENT & A. E: KAHLBERG.

TYPE WRITING MACHINE.

APPLICATION FILED OCT. 9. 1914.

1,1 53,959, Patented Sept. 21, 1915.

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Be it known that we, us}; GENT and Anvil) Euaeu'nr. Rumour. citi-- Zens oi the United States, and res nts of Indianapolis, in the county of l rich and w ,r. t btate 0t indiana, ha re invented certain new and useful Improvements in llypel riting Machines; and we do hereby declare the following to be a full, clear, and exact descrip tion of the invention, such as will enable others skilled in the art to which it apper-- tains to-make and use the same.

This invention relates to ribbon mochanism for typewriting machines and more particularly to improvements upon that type of such mechanism shown and described in Letters Patent No. 1,105 0S1, granted to on the 28th day of July l the obicct at our present invention bein SK) simpli and reduce the cost of manufacture oi the llItCllanism and at the same time enhance its efficiency.

With this and other objects in view, he invent-ion consists in certain novel features of construction and combinations of parts as hereinafter set forth and pointed out in the claim.

In the accompanying drawings; Figure l is a front elevation partly in section she wing the application or our improvements; Fig. 2 is a plan View, and Fig. 3 is a separate view of the shifting or reversing device.

1 represents the main frame or casing; of the machine, and 2 a notched bar secured therein and in which the type lovers of the machine are lnOlll'ltG(l,-Stll(l type levers being actuated by key levers and the latter being caused to operate a universal bar for devices, all as shown and described in our patent hereinbefore referred to.

A transverse frame is secured wit in the main. frame or casino 1 and prorgj ed with bearings for Vertical shai'ts 2 to which latter, ribbon reels 5 are secured and the inking ribbon 6 is caused to from one reel to the other and in front of the type by means of suitable guide devices.

Bevel pinions 7 are secured to the lower ends of the ve 'tical shafts i and mesh with smaller bevel pinions 8 scorn-ml to short shafts 9, said short shafts being mounted in suitable bearings 10 on the transvtu'se frame 3. The short shafts are provided 'ith clutch members 11, 12 and on the inner por- Specification of Letters Patent.

'ts, a sieeve 13 is loingly mounted on the latter is i 145 prermel at its respecclutch teeth or members 15, operate with the. clutch members 11, 2. A ratchet wheel 17 is made rigid with the sieevel-l and is actuated by a suitable dog .18 connected. with the universal bar of the machine, as fully shown and described in our patent hereinbettore referred to.

i1 hollow, elongated hlOCK is made rigidv with the frame 3, and from this block, a,

shifting or rerersing device or yoke 20 is suszended by means of pivoted links 21 so that it is capable of being oscillated. The yol made with depending arms 22 l loo" y embrace the ratchet wheel 17, and an operating;' arm 23 projecting upwardly from yoke, passes through the hollow bl ch and through a slot in the upper edge thereof, and projects above the same so as to be in position to be grasped by the operator w dch it is desired to oscillate the yoke to it the ratchet wheel and clutch devices and thus manually reverse the ribbon :feodin mechanism. The yoke 20 is also 1.21OViiflMi at respective sides or its center, with upwardly projecting arms 24. These arms pass upwardly through the hollow block and through slots in the upper edge thereof. terminating at their upper ends slightly above the upper edge of the block, where they are provided, in their inner with notches 25, for a purpose hereinafter described.

Each ribbon reel is provided with a hub 26 which depends below the reelas shown in l igg. 1. Each these hubs is made with a recess 2?, which is normally spanned by a spring-- actuated hinged section 28,the spring tending to open the hinged section when the ribbon shall have become exhaust ed fi'ron'l the reel, but when the ribbon is on the reel, the hinged section 28 will be held closed by the ribbon.

'Elwo horizontally-disposed L-shaped con trol it rs 29 are pivotally attached at their rear ends to the notched block 2 and project forwardly over the hollow block 19, said les also passing eely through the notches 4" in the arms 24% of the yoke 20, in which notches said levers are guided in their move-- usonts. The short arms 30 of the control levers project laterally tor ard the hubs of the ribbon and are provided at their free via ends with small rollers 31 which normally ride on said hubs. Springs 32 are attached to the respective control levers and to the frame of the machine and these springs tend to press the control levers toward the ribbon reel hubs. v

When the inking ribbon shall have become exhausted from one of the reels, the hinged section 28 of" the hub of that reel, will be opened by the action of its spring and the adjacent spring-actuated controlling lever Will be so moved (by its spring 32) as to cause its roller 31 to enter the recess 27 of the reel hub. Such lateral movement for the controlling lever will, by its engagement with one of the arms 24: of yoke 20, cause the yoke to be shifted laterally and motion will thus be imparted to the yoke to shift the ratchet wheel and clutch devices and shift ,the direction of operation of the ribbon reel mechanism, as previously explained.

During the normal operation of the ma gaging in one or another oftwo notches in the operating arm 23. c

Having fully described our invention What We claim as new and desire to secure by Let- '5 ters-Patent, is

The combination with ribbon reels, gearing for actuating the same, and clutch devices cooperable with said gearing, of a fixed block, a shifting yoke for the clutch devices 40 supported by said block, said yoke having arms projecting upwardly through said block and movable therein, said arms ha ing notches near their upper ends, horizontal control levers pivoted at one end to a fixed support and projecting over said block and guided in the notches in the yoke arms, au' tomatically operable controlling means for said control levers, and springs connected with said levers and a fixed support and tending to move said levers toward said automatically operable controlling means for actuating .the shifting yoke.

In testimony whereof, We have signed this specification in the presence of two subscribmg witnesses.

MARSHALL BIDWELL sAReEur. ARVID EMANUEL KARLBERG.

Witnesses: W. F. McCLoUn, W. R. 000K.

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