US1522011A - Typewriting machine - Google Patents

Description

Jan, 6,

G. G. GOING TYPEWRITING MACHINE v 2 smug-sheet 1 Filed April 9, 1921 INVENTOR G. G. GOING TYFEWRITING MACHINE Filed April 9, 1921 llll llllllllllllll III LI|| I 2 Shoots-Shut. 2

INVENTQR ATTORNEY Patented Jan. 6, 1925.

UNITED STATES GEORGE GOULD GOING, OF MIDDLETOWN,

CONNECTICUT, ASSIGNOR, BY MESNE AS- SIGNMENTS, TO REMINGTON-NOISELESS TYPEWRITER CORPORATION, A CORPORA- TION OF NEW YORK.

TYPE'WRITING -MACHINE.

Application filed April 9,

To all whom it may concern:

Be it known that I, GEORGE GOULD GOING, a citizen of the United States, residing at Middletown, in the county of Middlesex and State of Connecticut, have invented certain new and useful Improvements in Typewriting Machines, of which the following is a full, clear, and exact description, 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 bearings for typewriting machines, and in some of its details more particularly to bearings for carriage mechanisms of such machines.

It is an object of the invention to provide a bearing of the class mentioned which is simple in construction, inexpensive in manufacturing costs, not easily subjected to damage, and efficient and reliable in use.

A further object is to provide an 1mproved bearing construction of the class mentioned which will support the carriage of a typewriting machine in accurate alignment at all times and in all positions thereof and which is practically frictionless and noiseless in operation.

Other objects will be in part pointed outin connection with the following detailed description and in part obvious in connection therewith.

In the accompanying drawings wherein an illustrative but preferred embodiment ofthe invention is illustrated,

Figure 1 is an elevational view showing the platen carriage of a typewriting machine mounted in accordance with this invention;

Fig. :2 is an end elevation of the same;

Fig. 3 is a fragmentary detail view of the bearing;

Fig. 4 is an enlarged end elevation of the same;

Fig, 5 is an enlarged fragmentary view of the bearing, parts being broken away more clearly to disclose the structure; and

Fig. 6 is an end view of the ball retaining cage.

As shown in the drawing the invention is applied to a typewriting machine having a base plate 1 and a platen carriage 2 supported for horizontal movement transversely of the base by means of a bearing 3 constructed in accordance with the in- 1921. Serial No. 459,921.

supporting means for permitting vertical movement of a platen carriage or as a support for the type carriage or segment.

The platen carriage includes side plates 4 carrying a platen roll 5 and is adapted to be moved longitudinally transversely of the base of the writing machine by any approved feeding mechanism (not shown) being resiliently urged in this movement by a spring pressed drum 6 having a flexible member 7 wound thereon and connected to the carriage. The plates 4 are secured in spaced relationship by suitableframe members, such as shown at 8 and 8'. The main supporting bearing 3 of the platen carriage comprises a tubelike supporting member or ball rail 9 preferably of pressed metal bent to have a cross-section approximating a closed geometrical figure but left slightly open at one place to provide an open or slotted side in the member, the form. shown, being substantially triangular in cross-section and provided along one side thereof with a longitudinally extending opening 10. The ball rail ispro-vided internally thereof substantially at the angles with longitudinally extending ball races or grooves 11, being preferably pressed into the metal. The ball rail is also provided with longitudinal stiffening ribs: 12 pressed therein, one of these ribs being extended for attachment to a supporting standard 12 secured to the base of the machine.

Integral lugs or extensions 14 on the side plates 4 of the carriage extend into the open ing 10 of the ball rail and attached to the same as by screws 15 is a ball rod 16 adapted to lie within the tubular b-all rail in central position relatively to the ball races.

This rod is preferably of hard steel and circular in cross-section being adapted to contact with hearing balls 17 co-operating with the ball races. If desired, however, the ball rod may be provided with longitudinal grooves providing ball races, aligning with the ball races in the ball rail. Groups of these bearing balls are preferably spaced at a plurality of points longitudinally of the bearing so as to support the carriage in accurate alignment at all times irrespective of its transverse position.

This spacing is accomplished by means of ball cages 18 spaced apart the desired distance and connected together by integral straps 19 and forming in effect a single unitary cage. This ball cage is construct .d by stamping the same from a sheet of flat metal, the ball retaining portions at either end being provided with laterally extending arms 18, the openings for accommodating the balls being punched in the desired spaced relationship. The blank for the cage is then formed into substantially triangularsliape corresponding'to the shape of the ball race as shown in Figs. 4 and 6.

It will be understood that tllG'flIltIlD carriage support 3'will be disposed in a vertical plane extending approximately through the center of gravity 'of the platen carriage and attached elements whereby the carriage is substantia ly balanced upon the bearing and practically the entire weight is'carried thereby. However, in order 'tosupportthe carriage from pivotal movement about the bearing 3 an angular guiding plate 20, shown in dotted lines in Fig. 2, is'secured to a standard 21 and disposed so to contact with the transverse member 8 of the carriage, an upwardly extending flange 20 contacting with the member 8 so as to pro-- vent pivotal movement in one direction. The carriage is. prevented from rotating in the opposite direction by engagement of the frame member 8 with the bracket '20 or with the standard 21.

It will'thus be seen the carriage is sup ported in balanced position, the weight thereof being principally carried by the bearing-3 which is; particularly designed to support the carriage in "accurate =alignment at all times. The bearing construction described is also practicallyfrictionless and noiseless in operationaiid may' be subjected to long periods of service without appreciable wear or deterioration.

As many changes could be inade in the above construction-and 'inany apparently tendedto cover all of the generic and specific features of the invention herein de scribed, and all statements of the scope of the invent-ion which, as a-inatter of language, might be said to falltherebetween.

Having describedmy invention, what I claim as new and desire to secure by Letters Patent is 1. A ball rail comprising sheet material bent to be substantially triangular in crosssection and having an opening extending along one side thereof and provided with internal ball races disposed; substantially in the vertices thereof.

2. A ballrail comprising a sheet of pressed metal bent to be substantially triangular in cross-sectionand provided with an opening along one side thereof and ball races pressedin the inner surface of said rail and disposed substantially in "the 'vertices thereof.

3. A' support including, incombination. a ball 'rail-of-sheet material bent to have a longitudinal opening in one side thereof. ball races extending longitudinally internal- 1y thereof, a ball rod disposed within said ball rail, a supported member, lugs on said supported member extended through said opening and secured to-said ball rod, bGZlT- ing balls spaced longitudinally ofsaid ball rail and-a unitary cage for supporting said balls in spaced relationship comprising spaced ball retaining:members and an integral strap connecting the same.

4. A support including, in'combination, a

ball rail of pressed metal' substantially triangular -in'cross-section having an open ing extending along oneside thereof, ball races. disposed substantially at the-angles of said ball rail internally thereof, a bal rod disposed within said ball rail, a typewriter carriage provided with lugs extending into said opening and secured to said ball rod, bear ng balls spaced longitudinally within said ballrail and contactingwith said rail and rod, andmeans forsupporting said balls'in loi'igitudinally spaced rela-ti'onship.

In testimony whereof I affix my signature in the presence of two witnesses.

GEORGE GOULD GOING. lVitnesses A. AUSTIN, *N. M. SEiF-ERMAN.

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