US1138931A - Type-writing machine. - Google Patents

Description

A. J. BRIGGS.

TYPE WRITING MACHINE. APPLICATION FILED 050.10, 1912.

Patented May 11, 1915.

I WITNESSES:

INVENTEIFQ;

I-IISATTEIRNEV UNITED STATES PATENT OFFICE.

ARTHUR J. BRIGGS, 0E SYRACUSE, NEW xonx; jAS$Il3lNOJi .LBY MnsNE ASSIGNMENTS, T0 nnmmeron rrrnwm'rnn comrm, or ILION, new YORK, a CORPORATION on NEW YORK.

TYPE-WRITING macnmn.

Specification of Letters Patent.- Patented 11, 1915.

p m-ma med retainer 10, 151k? sei-iai no. 735,885.

v To a m it 'mayi'concem':

Be it known that I, Antrhun'Jgfimccs, a

' citizen of the United States, and resident of Syracuse, in the county of Onondaga andtype bars and hangers and methods of assembling and fitting or adjusting-said type bars-and hangers.

To the above and other ends my inven tion consists in the features of construction,

combinations of devices and arrangementsof parts hereinafter described and particularly pointed out in the claims:

In the accompanying-- drawing, Figure 1 is a side elevation of a type bar and hanger embodying my invention. Fig. 2 is a fragmentary front elevation partly in section showinga plurality of type bars and hangers and the segmental su'pport therefor. Fig. 3 is anenlarged fragmentary side view illustrating the hanger and the bearing ortion of the type bar shown in Fig. 1. ig. 4 is a horizontal sectionalview taken on a plane indicated by the dotted line Hin Fig. 3 and looking in the direction of the arrows at said line. Fig.5 is a sectional view taken axially "of elements ofthe' type bar bearing or joint. F igl 6 is a sectional view illustrating the method of assembling the type bar bearing or joint.-

able mechanism to coiiperate With the front face of the platen (not shown). This is the usual front-strike arrangement, but itis to be understood that my imp'rovements' are adaptable to other arrangements of type bars and" hangers; and further that saidimprovements-may be employed to provide bearings or joints for, other moving parts of writing machines."

The bearing end po 'tion of the type bar is shaped to provide a circular enlargement.

- 01" head fi'which is formed'witha' slotted lug 7. to which" is connected an element or link 8' comprised the actuating" mechanism, said link being received in'the slot in said lug to which it is pivotally connected. The head 6 is formedwith a circular opening or eye 9, the face of which is shaped to provide an internal; V-grooVe'," bearing surface or race-Way 10 fora set'or plurality of antifriction balls or rollers 11 The rollers or ballsl'l also co'iipe'rate'with an inner stationary bearing or race-way composed of a pair of heating elements, coned-disks or pieces 12, the" peripheries whereof are opositely con'ed or beveled as indicated at 13.

hese faces1'3"together with the V-groove 10 n rovide a four-point bearing for. each ba Thei'di'sks 12 are formed'with'holes to fit'ov'er a bushin or supporting and'spacing sleeve 14 provi edwith a central circular flange or spacing device 15 with the sides of which the disksare' adaptedtd engage as clearly shown iii'Figg- 5. As will be seen from thisfi'gure' the ends of the sleeve 14 project beyond the outer faces of the disks and are adapted to be" spread or headed over seas to permanently connect the disks .with the sleeve; The outerfaces of the disks are slightly depressed, countersunk or beveledaround the holes as indicated at 16 so as to facilitate the heading of the sleeve,

as a result of which operation the three parts are rigidly fastened together and the relationship of the-disks 12'permanently fi x'e'd; that is to say, the parts are held in a fixed or setirelationship so as to provide a unitary device, it being necessary to compress one of the parts comprised in said device or permanently alter the shape of or.

distort it in order to' 'eflfect a variation in such relationship. Thesleeve is preferably of brass or very soft'steel while the disks are of hardened steel. The sleeve 14 is bored out centrally as indicated at 17 to receive a in or rivet 18 which connects the sleeve air through it the type bar with the hanger 2. The r vet is supported at its ends in cars 2 projecting rearward from the upper ends of the hanger and the outer ends of said rivet are upset or headed to prevent displacement of the parts after they have been assembled.

In assembling the parts comprised in my improved bearing or joint the balls 11 are arran ed' in the race-way 10, being prevente from dropping out by one of the coned disks 12 while it and its associate sleeve 14 are held in place by the assembler. Then the other cone or disk 12 is arranged on the sleeve, the ends of which at this time, it will be understood, have not been upset, the sleeve being in the condition illustrated in Fig. 5. The parts are then placed in a suitable assembling fixture and in register with two dies 19 (Fig. 6), the 0 erating faces whereof have suitably shape depressions or countersinks 20, the side faces of said countersinks being sloped or inclined. Next the die faces are forced toward each other by screw pressure or otherwise and the inclined or beveled faces of the depressions 20 will engage with the ends of the'sleeve 14, forcing these ends down toward the outer faces of the coned disks 12 and also outward laterally. The result will be that the ends of the sleeve will be s read, filling the countersinks 16 and slig tly overlapping the faces of the disks. This spreading permits the faces of the dies 19 to'engagethe outer faces of the disks 12 and press said disks toward each other. The flange or separating device 15 is made a trifle wide so that initially or prior to applying pressure to the disks the bearing is a little loose, that is, the balls are not in close contact with the bearing surfaces 13 and with the race-way 10, said faces being too far apart at this time to give a close fit. As a result-of applying pressure to the disks through the dies 19 the flange 15 is squeezed and slightly compressed, lessening the distance between the bearing surfaces 13. During this compression the spreading of the ends of the sleeve will continue so that when compression ceases the disks 12 will be tight on the sleeve. A very fine adjustment of the type bar may be obtained by employing the described construction and assembling it in the manner described. .During the time that the dies are gradually approaching each other the assembler .swlngs the type bar back andfor'th with his fingers and is enabled to determine by the feel of the bar when the proper adjustment has been secured. At this instant he arrests the dies, thereafter removing the bar. At this time it will he understood'that the ball bearing joint is completely assembled but that the'rivet 18 is not in place. The type bar device composed of the member ortype bar proper 1, the inner hearing or bearing member comprising the disks 12 and sleeve 14 and the interposed balls, is self-contained, the balls preventing the inner hearing from dropping out while said bearing itself prevents displacement of the balls. The assembler next arranges the type bar between the side walls of the hanger 2 and passes the pin or rivet 18 success1ve y through the hole in one of the ears 2 thereof, through'the hole 17 in the sleeve, and through the hole in the other ear 2. The ends. of the rivet are then upset, forcing the inner faces of the ears 2- to engage tightly with the upset ends of the sleeve 14,

the -result being that the bearing member or device comprising the sleeve 14 and the disks 12 is rigidly secured in the hanger 2. When the hanger is secured in place on the segment 4 by the screw 3 the bearing surfaces 13 provide a fixed bearing for the balls 11 on which said balls may run back and forth during actuations of the type bar.

Among the advantages of the described construction are simplicity and economy. Furthermore a very fine and accurate adjustment of the ball bearing joint is obtainable prior to' assembling the type bar in its hanger. If the joint becomes-defective or loose through wear or otherwise it may readily be repaired by substituting a new sleeve .and re-assembling the parts in the manner described.

Various changes may be made without departing from my invention.

What I claim as new and desire to secure by Letters Patent, is

1. In a typewriting machine, the combination of a type bar provided with an eye, anti-friction rollers therein, bearing. elements within said eye with which said rollers cooperate, and. a compressible spacing member on which said elementsare mounted, said member and said elements being rigidly secured, together under compression.

2. In a typewriting machine, the combination of a type bar provided with an eye, anti-friction rollers therein, bearing elements within said eye with which said rollers cooperate, a compressible spacing member on which said elements are mounted, said member and said elements being rigidly secured together under compression, a type bar hanger, and means for connecting said spacing member to said hanger.

3. In a typewriting machine, the combination of a type bar member, a bearing member, anti-friction rollers between said members, one of said members comprising two relatively adjustable parts for taking up lost motionin the bearing, and compressiblemeans operative independently of said rollers to secure said parts set permanently in a fixed relationship obtained by forcing said parts toward each other against the resistance of said compressible means, a type bar hanger, and means for connecting said bearing'member with said hanger.

4. In a typewriting machine, the combination of a type bar member, abearing member, one -o said membe'rsfbeing provided with alleys and the other comprising two adjustable part6, compressible means for securing said parts permanently in a.

fixed relationship obtained by -;forcing said parts toward each other against the resistance of said compressible means, anti-friction rollers within said eye and cooperating with said parts, said means being Operative independently of said rollers to fix said a compressible sleeve provided with a device' for spacing said disks apart, said disks and said sleeve being rigidly secured together under compression.

6. In a typewriting machine, the combination of a type bar provided'with an eye, anti-friction rollers therein, a pair of disks within said eye having incline faces with which said rollers coiiperate, a compressible sleeve provided with a device for spacing said disks apart, said disks and said sleeve being rigidly secured together under compression,'.a typebar hanger, and means for securing said sleeve on said hanger.

7. In a typewriting machine, the combination of a type bar provided with an eye, anti-friction rollers therein,- a pair of disks within said eye I having inclined bearing faces with which said rollers cooperate, a compressible sleeve provided with a device for spacing said disks apart, said disks and said sleeve being rigidly secured together under compression, a U-shaped hanger, and

a rivet for securing said sleeve fixedly between the walls of said hanger.

8. In a typewriting machine, the combination of atype bar provided with an eye,

disks are mounted, said sleeve being proanti-friction rollers therein, a pair of disks within said eye having inclined bearing faces with which said rollers cooperate, and a'sleeve on which said disks are mounted, said sleeve being provided with a central flange which spaces said disks, the ends of said sleeve being spread to rigidly secure the.disks in place thereon.

9. In a typewriting- 'machine, the combination of a type bar having an eye formed with a V-groove, anti-friction balls within said groove, two oppositely coned bearing 1 disks coiiperat'ng with said balls, and a member, one of sleeve of relatively soft metal on which said vided with a compressible flange which,

spaces said disks. and the endsoffsaid sleeve being upset to secure, said diskfsin place.

d bearing 'unitaryt device on said support.

1051a a typewriting machine, the combination of a type bar having an eye formed with a .V-groove, anti-friction balls within saidgroove, two oppositely coned bearing disks coiiperating with said balls, a sleeve of relatively soft metal on which said disks are mounted, said. sleeve being provided with a compressible flange which spaces said disks and the ends of said sleeve being upset to secure saiddisks in place, a'U-shaped type bar hanger between the walls of which said type bar is arranged, and means connecting said walls and passing through said sleeve.

11. In a typewriting machine, the combination of a type bar havingan eye formed with a V-groove, anti-friction balls within said groove, two ppositely coned bearing disks coiiperating with said balls, a sleeve of relativel-ysoft metal on which said disks are mounted, said sleeve being provided with a compressible flange which spaces said disks and the ends of said sleeve being upset to secure said disks in place, a U-sliaped type bar hanger between the walls of which said type bar is arranged,'and a rivet connecting 7 said "walls and passingthrough said sleeve, said rivet securing said sleeve. in fixed relationship with said hanger.

12. In a typewrltmg machine, the combination of a type bar provided with an eye, anti-friction rollers therein, bearing elements within said eye with which said roll: ers cooperate, a compressible spacing member on which said elements are mounted, said spacing member and said elementsbeing secured together in a fixed relationship so as to provide a unitary device changeable only by altering the shape or structure of one of the parts comprised in said device, a type bar hanger, means for connecting said spacing member tosaid hanger, a supporting member .and means for detachably seguring said hanger to said supporting mem- 13. Ina typewritin-g machine, the combi-' nation of a plurality of type bars, each type bar being provided with an eye, anti-friction rollers in said eye, .bearing elements within said eye. with which said rollers cooperate, acompressible spacing member on which said elements are mounted, said member and said elements being secured together in a fixed relationship soas to provide a uni tary device changeable only by altering the shape or structure of said device, a support for said .type bars, and means for detachably mounting each type bartogether with its 14. In aftypewriting machine, the combination of a type bar member, a bearing said members being provided with an'eye and the other comprising two adjustable parts and compressible meansfor fixing the relationship between said parts so as to provide a. unitary device,

ble, which consists in permanently fixing it being necessary after said parts have been once adjusted to alter the shape of said,

bearing for a type bar comprising a race' way composed of a plurality of relatively adjustable parts one of which is compressithe relationship of such parts by altering the shape of said compressible part iii such a way that the type bar may be turned back andforth on its axis during such fixing operation, said parts as a result of said fixing I operation being held against displacement either toward or away from each other except by an alteration in the shape or structure of said means.

17. The method of assembling a roller bearing for a type bar comprising a raceway composed of a plurality of parts and of a device compressible at the opposite sides of each of said parts to permanently fix the relationship between said parts by com'pres-f sion, which consists in compressing saiddevice and fixing such relationship in such a way that the type barmay be turned back and forth on its axis during the compress ing operation.-

18; The method of assembling a type bar device comprisinga type bar proper having a race-way for anti-friction rollers, two parts provided with inclined bearing surfaces, and

a relatively soft spacing sleeve provided" with a separating flange which maintains said two parts separated to such an extent that there-is an initial looseness in the be'aring, which consists in partially spreading orupsetting the ends of the spacing sleeve and then forcing said two parts toward each other and compressing said flange until the looseness in the bearing is taken up.

1,1'se,eer

19. The method of assembling a type bar and hanger comprising a type bar proper providedwith a ball race, two parts'related to provide a. second ball race, and a relatively soft spacing sleeve having a flange for maintaining the two parts initially separated so that there is looseness in the bearing, which consists in partially spreading or upsetting the ends of the spacing sleeve, then completing the spreading operation and concurrently forcing saidtwo parts toward each other, compressing said flange until the looseness in the bearing is taken up, then riveting said sleeve and the type bar hanger together.

20. In a typewriting machine, the combination of a type bar provided with a raceway, a plurality of relatively adjustable parts composing a second race-way, rollers cooperative with said race-ways, and a single piece cooperative with each of said plurality of parts at the opposite faces of each part to fix the relationship of said parts permanently in respect to each other and also'in respect to said piece, said piece in itself alone so fixing each of said parts.

21. In a typewriting machine, the combination of a type bar provided with an eye, anti-friction rollers therein, bearing elements within said. eye with which said rollers cooperate, and a single piece on which said elements are mounted, said piece serv ing both to properly space said elements apart and also to permanently fix or look said elements on said piece.

22. The method of assembling a type bar and a plurality of parts comprising a bearing device therefor, which consists in interlocking certain of said parts by compression so as to fix the relationships between all of said parts and provide a single unitary rigid bearingidevice, the compressing operation taking place .prior to the securing of said type bar and said fdevice in the type bar hanger so that-the type bar maybe turned back and forth on. its axis during the compressing operation.

Signed at Syracuse, in the county of Onondaga, and State of New York, this sixth day of December A. D. 1912.v

V ARTHUR J. BRIGGS. W'itnessesF l a x E. S. BOYNTON,

' H. A. CARHART.

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