US453941A

US453941A - keason

Info

Publication number: US453941A
Authority: US
Publication date: 1891-06-09
Anticipated expiration: 1908-06-09

Description

(No Model.) 2 Sheets-Sheet 2. W. M. REASON.

TYPE WRITING MACHINE. I No. 453,941. Patented June 9,1891.

(in Model.) 2 sheets-sheet 1. W. M. REASON.

TYPE WRITING MACHINE.

No. 453,941. Patented June 9,1891.

77 335? {PM mm Inn-atop.

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UNITED STATES PATENT. OFFICE.

IVALTER M. REASON, OF OARO, MICHIGAN, ASSIGNOR OF ONE-HALF TO TIMOTHY O. QUINN, LUKE H. OOROORAN, ARTHUR T. SLAGI-IT, AND JOHN F. SEELEY, ALL OF SAME PLACE.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 453,941, dated June 9, 1891.

Application filed April 2, 1890. Serial No. 346,310. (No model.

To all whom it may concern.-

Be it known that I, WALTER M. REASON, of Oaro, in the c'ounty of Tuscola and State of Michigan, have invented a new and useful Improvement in Type-Writers, of which the following is a specification.

Myinvention relates to type-Writers; and the object of my improvements is to adapt a typewriting machine to write either capital or small letters with one set of keys. I attain this object in the device illustrated in the accompanying drawings, in Which Figure 1 is a plan view of a type-writing machine embodying my invention, the papercarriage and all but one pair of the type-bars being removed. Fig. 2 is a section on the line 00 01:, Fig. 1. Fig. 3 is a plan view of the shifting-ring, and Fig. 4 is a perspective View of one pair of type-bars and a part of the operating mechanism.

Similar letters of reference refer to similar parts throughout the several views.

A is the frame of the machine.

13 is the opening at the periphery of which the type-bars are secured.

I is a type-bar which carries a capital letter, and i is a type-bar which carries a small letter. Said type-bars are pivoted upon a rod to, which rod is secured to the top plate of the machine near the periphery of the opening B. The other type-bars are secured in the same way and are similarly arranged, a bar carrying a small letter adjoining a bar carrying the corresponding capital letter.

I d e, i d f are the bell-crank levers, pivoted at b 0, upon the long arms I 2' on which the type are carried, and e f are wrists extending from the free ends of the webs (Z (Z toward each other, their free ends coming together with their centers in line. The free ends of the wrists e f are beveled in opposite directions, as shown in Fig. 4:.

J is a Wire connecting the wrists e f with the lever of the key which operates the typebars I and v I j is a loop formed in the end of the wire J, passing over and adapted to slide along the wrists e f.

a key at said lower end.

. S is a bar along which the wheel travels which supports the front of the paper-carriage.

T is a lug extending from the lower part of the rod S at its center to the center of the opening B.

O is a hub pivoted on the end of the lug T concentric with the opening B. An aperture is formed through the center of the hub O to permit the type to pass to strike the paper upon the platen.

D D D are arms extending radially from thehub O beyond the periphery of the opening 13. The arm D, which extends toward the front of the machine, passes through an aperture formed for that purpose through the rod S.

F is a ring provided with radial slots g. Said ring is supported with its center directly below the center of the opening B by rods E E, extending vertically downward from the ends of the arms D D through slots R, formed through the top plate of the machine. The wire J passes through one of the slots g, and is adapted to move freely in the direction of its length in said slot.

II is a lever pivoted at the lower end of the hanger G and extending at its lower end to one side of the key-board, and provided with The upper end of the lever H engages with a slot in the periphery of the ring F, as shown in Fig. 3.

w is a spring secured to the hanger G and acting to press the upper end of the lever I-I backward.

P P are radial slots formed in the ring F at that part of its periphery which is farthest toward the rear of the machine and at a distance apart equal to the distance between the 0 and adapted to engage with the slots P P in the ring F when said block is drawn down.

K is the letter-space-ratchet rocking frame.

The operation of the above-described device is as follows: lVhen the small letter is being used, the upper end of the lever II is held back by the spring V. The wire J is held by the slot g in the ring F, through which it passes, in that position which holds the loop j upon the wrist fot the crank which operates the type-bar which carries the small letter. When the key U is struck, a small letter is written. If: the operator wishes to write a capital letter, he presses upon the key upon the end of the lever I], thus oscillating said lever about its pivot h and turning the ring F about the bearing of the hub C in the lug T. By the movement of said ring the wire J is carried sidewise, carrying the loop j over upon the wrist of the crank which operates the type-bar carrying the capital letter, so that when the key U is struck a capital letter is written. When the lever II is released, the spring w forces it back, carrying the ring F with it and moving the loop j back onto the wrist of the crank which operates the bar carrying the small letter. Every time a letterkey is struck the arm L is drawn downward, carrying with it the block 0, thus drawing the tooth 13 into the slot P when a capital letter is written and into the slot P when a small letter is written. when the tooth p is in one of the slots P P, the ring F is prevented from turning. Therefore the ring F cannot move except when both the type-bars are down and the wrist f is in line with the wrist 6. This description of the operation of the device in respect to the type-bars I 2' applies to all the other type-bars.

Having fully described my invention, what 0 I claim, and desire to secure by Letters Patcut, is-

1. The combination, in a type-writing machine, of a pair of separately-movable typelevers, one carrying the capital and the other the small letter, a key for each pair of type levers, a rod normally connecting said key with the type-lever carrying the small letter, a rotatable ring connected with all said connecting-rods, and locking mechanism operating on said ring and connected with all the key-levers, substantially as shown and described.

2. In a type-writing machine, a pair of independently-movable levers pivoted side by side, one carrying a capital letter and another the same letter in small type, a pivoted key, a connecting-rod pivoted to said key and normally engaging with the lever carrying the small character, and means, substantiallysuch as described, for shifting said connecting-rod from one type-lever to the other, substantially as shown and described.

3. In a type-writing machine, the combination of pairs of separately-movable type-levers, a key for each pair, a rod positively connected with each of said keys and shiftably connected with one of the type-levers, a slot ted rotatable ring adapted to shift the said rods, and a spring-retracted lever adapted to 70 rotate said ring, substantially as described.

\VALTER M. REASON.