US1000019A - Type-writing machine. - Google Patents

Description

L. W. LABOFISH.

TYPE WRITING MACHINE.

APPLICATION rum: MAY 12.1910.

1,900,019, v Patented Au 8, 1911.

Q. N Q. L:

l N'V'ENTEJR f%% 4 Q f amw 14E ATTUFQNEY UNLTED taTATES PATENT OFFICE.

LOUIS W. LABOFISH, OF WASHINGTON, DISTRICT OF COLUMBIA, ASSltG-NQR TO UNION TYPEVVRITER COMPANY. OF ILION, NEW YORK, A CORPORATION OF NE? YORK.

TYPE-WRITING MACHINE.

To at! whom it may concern:

Be it known that L Lens \V. lmnorisn, citizen ot the l nited States. and resident of lil'ightwood Park, city of \Vashington, District of Columbia, have invented certain new and nselnl lmprovements in Type-'riting Machines, of which the following a specification.

My invention relates to typewriting machines and more partieularhv to means for maintaining a fixed relation between antitriction rollers for supporting the carriage and for maintaining a proper relation between said rollers and the carriage and between the rollers and the frame of the ma chine during the travel of the carriage.

The main object of my invention is to provide simple. etlicient and inexpensive means of the ehararter speeitied.

A further object of my invention is to provide llltlIlS of the charaetcr speeitied which may be readily applied to existing forms of typewriting nnnrhines without attering the structural 'l eatnres of said machines as they now exist.

To the above and other ends which will hereinafter appear. my invention consists in the t'eatnres ot construction, arrangements of parts and combinations ot devices to he hereinafter described and particularly pointed out in the appended claim.

in the :u-eompanying drawings wherein lil 'e reference rliarm'ters ind' tale corresponding parts in the various views, l igure l is a tragmentary vertical fore and aft seetional view showing so much ot' one term of typewriting machine as is necessary to illusirate my invention in its embodiment therein. Fig. 2 is a t'ragmentary hottom'view showing portions of the carriage and its supporting means, together with the means for controlling the position t he anti-trietion rollers. Fig. 2) is a detail rear view of the anti-t'rietion rollers aml the separator theret'or, together with a. pinion carried by said separator. Fig. t is an enlarged detail transverse seetional view lillttll through the front carriage trucks.

1 have shown my llIVtlltlUll applied in the present instance to a No. 10 Remington inachine in which the invention maybe readily embodied without. changing the structural 'teatnres of said machine as they now exist. It. should be understood, however, that the Specification of Letters Patent.

Application filed May 12. 1610. Serial No. 560,838.

Patented Aug. 8, 1911.

invention may be embodied in other styles of typewriting, machines.

The corner posts 1 of the machine support a top plate 2 from which upwardly extending lugs 23 project. Front and rear fixed carriage tracks or rails 4 are supported on the lugs 23 and have grooved faees, as indicated at 5, for the reception of and cooperation with anti-friction rollers (3 and T. The rollers (l and T for each of these taeks turn on pivots and 9 respectively which are arranged at substantially right angles to each other, the pivots 9 being received in sheet metal arms 10 ot a roll holder or separator. The planes of the arms 10 are substantially at right angles to the planes of the pivot receiving arms 11 formed integral with the arms 10. The arms it are riveted at 12 to parallel plates 13 which. together with the arms 10 and 11. constitute a roll holder or separator for maintaining the rollers in fixed relation one to another. A pair of crossed anti t'riction rollers t3 and T are provided at each end to the roller separator as shown in l ig. 3. The rollers (i and 7 cooperate with tront' and rear rails or tracks 14 formed on front and rear Cl'Us-l bars of a earriage 15. The tracks ll are grooved at 16 for the rereption of and coi'ipcration with the anti-friction rollers ti and T. The antitriction rollers thus support the carriage and guide it in its movement. from side to sideot the machine over the top plate. lCaeh rollerseparator has a block 17 interposed between the parallel plates 13 and se- .e.ure.d thereto by rivets 18. A vertically dis posed opening is drilled through each block 17 and through the edge of one of the parallel plates 13 for the reception of a spindle 19, riveted or headed at 20, to rigidly connect the spindle with the roller separator. llach spind elt) extends downwardly from its roller separator through the space provided between the associated tracks 4 and 14. A pinion 21 is mounted to turn freely on each spindle l9 and is supported in plaee bv the lower headed end 22 of the spindle.

The etl'eetive diameter of each pinion 21 is,

shown in the present instance as about the same diameter as the anti-friction rollers (i and 7, although the diameter of the pinions may be varied at. will. Pinions of about;

the size of those shown in the present in stance lend themselves readily to embodiment in the No. 10 Remington machine. Racks 23 are fixed by screws 2a to the bottom of the fixed tracks a and are each arranged to mesh with the associated pinion 21 on one side thereof. Oppositely disposed racks 25 are fixed to the tracks 14: on the carriage by screws 26, the teeth of each rack 25 engaging with the associated pinion 21 on the side thereof opposite the companion rack 3.

The construction and arrangement of the parts are such that a movement of the carriage will produce a relative movement between the racks 25 and and the engagement between these racks and the pinions 21 will. cause the pinions to travel one half the distance of the carriage'in its movement from side to side of the machine and to produce a corresponding movement of the roller separators and the anti-friction rollers carried thereby. The construction is therefore effective to prevent an undue displacement: ()It the anti-friction rollers 6 and T and to maintain a fixed relation between said. rollers and the carriage, and between parallel plates of .the separator, a sp ndle said rollers and the fixed frame of the machine at any given point in the travel of the carriage. That is to say, When the carriage is centrally positioned on the frame, for example, as shown in Fig. 2, then the rollers for each companion pair of tracks will be in the positions shown relatively to the carriage and relatively to the frame, and these positions of the rollers will always be the same when the carriage is centered.

\Vhen I refer herein to anti-friction rollei-s, this term is used in a broad sense and is intended to apply to such rollers, what-- ever may he the shape thereof.

The carriage and the manner of supporting and guiding it is the same as the con.-

struction usually embodied in the No. 10 Remington machine,'altlmugh the platen ET is merely conventionally shown in Fig. 1. It will be understood that it is merely new sary to add the spindles lt pinion i l and racks 23 and 25 to the ordinary equipnns-nt of the No. 10 Remington machine in order to embody my invention in such machine, and that I have provided simple and ellieient means for maintaining the proper relation between the anti-friction rollers and the frame of the machine and carriage.

lVhat I claim as new and desire to secure by Letterslatent, is:-

In a typewriting machine, the combination of a carriage, a grooved track carried by the tarriage, a grooved track carried by the fame of the machine, said tracks being spaced apart horizontally, anti-triethm carriage supporting rollers in said grooved tracks, a separator con'iprising parallel plates between which said rollers are received and to which they are pivoted to maintain a fixed relation between the rollers, a block between and secured to the mounted in said block and passin r through the space between said tracks, a pinion carried by said spindle, a rack fixed to the carriage an'd"cooperative with said pinion on one side thereof, and a second rack fixed to the frame of the n'iachine and coinaerative vith said pinion on the opposite side thereof.

Signed at city of lV-ashington, .l)istrict of Columbia, this 9th day of May, A. .D. 1910.

LOUIS N. LAM I l.

Witnesses W M. H. in: Mom, Ci-ras. E. Cnua'rnixn.

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