US978944A - Type-writing machine. - Google Patents

Description

G. A. SEIB & J. W; KOERNER..

TYPE WRITING MACHINE. APPLIOATION FILED JUNE 14, 1907 Yatented Dec. 20, 1910.

INVENTURJEH MW r THEIR ATmRNEY U IT ns ArEs PATENT-entice enemas SEIB AND JOHN w. KOERNER,

- 'rronjor NEW YORK.

To ell it-may concern:

Jenn W. Kenning-{citizens of the". United "States; and; residents of Syracuse, in the countyof Onondagaand-State of New York, 7 have invented certain: new and useful. Im-

provementsfin Type-\Vrit-ing Machines, of which theffollowing is a specification.

3Qnr- "1nvention mlates to type bar pivots ahd hearh v and our 'mai'n objects are to produce a. tight but -freely operating pivotal o'muor the type bar;,to provide a construction,-in' which the fpivots and .bearings are A flhfe ld in properv workin' 1 tension; to provide-"arse i a 3 or one: in-Twhich the wear. is automatically compensatedftor; to provide; aconstruction which the. type 'bar' isflenahled to take a L '"tssbear nguge n hm gh the an g dish "out of true 11d: 'alsoto provide a construction of ivot '11 by which the partsm'ay be oiledan fby'which there isprob-th :agd'other'eilds our invention consists in the -featuresof construction a'nd'oom- I bi'natiOn of parts hereinafter more fully described; and particularly'pointed out in the ap ndedclaims. I f

' n the accompanyingdrawings, Figure 1 ;"is'.-.a' side sectional view of type bars and hangers :embodying our improvements, the

View alsoshowmg a'type bar segment,-type bar rest,- laten and otherpar-ts'of a typeper end of the type bar segment and showmg three type bar hangers'fand typ'e bars,

the latter being. in section, and the type bars and hangers embodying ourimprovements;

. Fig; '3-is an enlargedfront sectional view of'a type-bar, its lateral=piv0ts and fragments of=the" armsof a type b'ar hanger.

" Fig. 4 is a perspective view of one of the shorter type bar hangers. Fig. 5 is a diagrammatic View of one 0f -the hanger arms and'ione end-ofa type bar pivot. "Fig, 6 is a fragmentaryfview of the-pivotal end of type bar of a different style. Fig. 7 is a f fragmentary view in. section through the 'axi's off-one. of the pivotal bearings,aiidjon' -a l enlarged'scale.r-- In the'various views the same parts will eegage nent under:

I jnsting' hearing,

or 'srR AcUsE, NEW YORK, ASSIGNORS T0 1 THEMONARGH TYPEWRITEK COMPANY, or SYRACUSE; NEW YORK, A Coltrane-- rrrn-wmrms MACHINE.

4 v f befound designated by the same numerals Beiit known that we, GEORGE'A. SEIB and of reference.

7 Specification of Letters Patent. Patented Dec. 20, 1910. 'Kpplication filed-June 14,1907. Seria1 No. 379,083.'

Q 1- designates the type bar segment of. the construction embodied in the Monarch machine, 2 the longer type bar hangers and- 3 the shorter typebar hangers, the' hangers being secured to the segment-by screws 4.

:The hangers '2 are similar tothe longer hangers used in the'Monarch machine, but

the hangers '3 are difierently'constructed,

' will presently be explained. The hangers? H arepreferably formed from a strip of sheet steel folded so as-"to provide the double shank portion 5, contracted neck 6 and parall'el arms 7, 7.-' These arms are provided with a rivet-S'headedat each end and'pref- ,erably countersunk, orpartially. so,'.w1 th;i1i, I

depressions in the outer sides of theha'nger arms; The shortenhang'ersfi are also pref "i1 7 rably made from a'strip' of steel and bent' into' general U form so as to provide par-lallelarms 9. Rivets 10 similar to the r vets 8 connect the arms 9. The hanger-arms 9.

terminate at their free-ends in Wliatvvecall' C Q wardl'y ektending portion 11 and a tor-.7.

,goose necks, each 'of which jcomprises a rearwvardly extending portion 12. These por'.

tions are produced by forming the armst) with. enlargements and slotting or cutting.

through the middle at 13. The-purpose and eflect of 'this construction is to provide at. the bearing ends of the hanger arms, long,-' "narrow sect-ions having resilient properties. r The type bar pivots and thebearings for-- the pivots'are made alike for both styles of hangers: Preferably the pivots 14 are in -serted in. the type bars 15, and preferably also these pivots are made of asingle pieceofsteel passed throughand secured in an 95.. projecting portions on each side of the type bar. These ,projecting.portions are madeopening in the type bar, so that there are tapering or conicahasshbwn' -at 1 6. The

polnts or extremities of these tapering portions on each side of the type banare dulled or rounded, as at .1'(,. for a purpose which will presently appear e U y The beari sfor the pivots or pivotaliport-ions16 are I i 'the long hangers and in the overhanging or ned'in the hanger arms 7.

portions l2-formed 'integral with the, hanger arms 9 otfthe shorter -hangers'. T hese been ngs- 18 are produced on or n the nnersid r or {races of the hanger arms and directly-op POSltG each other in each hanger. The said bearings are in the nature of conical or tapering depressions circular in cross section and running to -a sharp point in the body of the metal, but terminating therein 5 without reaching to the outside of the stock.- The taper of the pivot is greater, sharper or more acute than that of the hearing so that- .the pivots do not fit the bearings for .the 5 against the bottom of the depression, but

bcarsagainst the tapering sides of said depression, and there is asmall space remainmg between the bottom of the bearing and g the end of the pivot, which space is utilized as an oil, vaselcne or other lubricant recepf tacle 19. By constructing the parts in this way dan er of breaking the point of the pivotis 0 vi'ated. If the point of the pivot .5 were sharp and bottomed in vthe point-of the l depression itwonld be liable to break.

In practice we prefer to so form the deircssions iii the hanger arms as that the.

arings have considerable more divergence than the pivots. and in carrying out our invention we have provided for a ditl'erence Q of 20 in divergence between these two members. .\s shown in the drawings the hear- 1 ing depressions iii the hangers and the taper V ing ends of the pivots have the .form of cones. and each of said depressions has between two opposite elements of the cone an angle of about- T2 whereas the opposing elcments of the pivot are formed on an anglcot about as indicated at Fig. We pref fer to make the rounded ends of the pivots Ill the manner shown in the drawings; that I is to say, with the curved or spherical surface at'the extreme end of the pivot constitilting a smooth continuation of the conical surface. When the hanger arms are in par allclism and the pivots are at right angles to the hanger arms there would then be a space of 10 on each side of the pivot between it and the adjacent wall of the haiwcr.

At Fig. 3 itwill-be observed that the pivot is arranged centrally to the hearing or deprcssion, and while this is the proper relation that the pivot should have to the bearings in the hanger, nevertheless it this true relationship should be disturbed either in the manufacturing, assembling or alining, any slight deflection atthe bearing faces of the hanger will not be detrimental to the} action of the type bar.

Fig. 5 shows a pivot connecting with the 5 bearin faces of a hanger wall that has been a distance equal to .r. This distortwisted ity' 'witlio'i'it special ii though "It: has been'found desii-able'toghavea tion will not diminish -the.tension at the 1 hearing faces and will not throw the type 1 bar out of its true path. -The effect of the twist. is'to diminish the space a. and proportionately increase the space I), but the point of the pivot still maintains a proper-seat: and is operative and the type will not be thrown ontof alinement. This is the main object of providing the clearance of 10 all the way around the conical faces of .the pivot.

The type bars are preferably inserted in f the hangers by springing apart slightlythe hanger arms so that the pivots on each side of the type bars may enter the depressions in the arms. 'Therivts are'then set so as to. produce the requiredtension in the arms and a'tension that will permit the bar to 5 drop freely of its own weight. 'hen ;the

parts are thus assembled the free ends of the hanger-arms will have a tension toward 3 each other and endwise of the type bar pivots and will press against the rounded ends of the pivots ons'opposite sides of the bar.-

and-this tension is sufiicient to enable the hanger ar n's to -'take; up automatically any wear thatmay occur between the-ends of the pivots and their seats or bearnigs. In thei long hangers 2 the hanger arms are of suflicientdengtlnto.proyidealierrequisite slight'separation between the inwardly bent sections constituting the neck portion 6 of the hanger. Inasmuch as the ordinary-short f hanger does notpossess the desired amountof resiliency we have devised the special construction of short hanger heretofore de- .scribed. and which by reason of its looping back '01 goose neck form gives. in effect.

; hanger arms of greater length, 'though the distance measured directly between the pivot point. and the rivet is the same as in the ordinary short hanger. Still, so far as one feature of our invention is concerned. the short hangers may be otherwise made, as for ex ample, the arms may be thinner or more elas-.

Iic l)( \'t llltl' the rivetpointwithout embodying the goose neck construction, andas far i as the long hangers are concerned they may he otherwise constructed also, it; being imma- -terial. broadly consideredrliow the desired resiliency or tension is obtained. Of-course it will he understood that iii some styles ofmachines it may be unnecessary to have more than one form of hanger and that. of uniform size. l

The bearing surfaces are hardened to increase their durability. It will be noted that the pivots of the type hats contact with the bearings .18 only at or near the extreme ends I of said' pivots at which points said pivots are of very small diameter. It results from 'this construction that the contacting surfaces are verv close to the axis of rotation of the llit) type bar and that when the type bar is operated the motion of the pivot at its bearing points is very slight and the wear is thus reduced to a minimum.

The principle of our type bar bearing is applicable to those constructions in which the pointed pivot is mounted on the hanger arm and the co-acting bearing depression is in the type bar. Such a construction is shown in Fig. 6 which represents the pivot end of atype bar such as is used in the Smith Premier machine, for example. In saidfigure, 21 represents the type bearing arm of the type bar; 22, the axleof said type ban; 23, the actuating arm that is connected by a link with the key lever; and 2st, the hanger arms. Pivot points 25 are threaded through. the hanger arms and engage bearing depressions 26 in the ends of the axle 22. The pivot points 25 and the bearing depressions 26 are tapered as in the other form of our in-' vention, and as before the taper of the points 25 is greateror sharper than that-of the depressions 26 and the extreme end of each of the pivot points 25 is slightly rounded before. The hanger arms24 are SO;C01,1". structed as to afford the necessary resilience. The pivot points 25may be adjusted toward and from each other and is contemplated that this adjustment shall be such as to place the hanger arms under suitable tension toward each other.

Various other changes may be made in the details of construction and arrangementwithout departing from our invention.

What We claim as new and desire to cure by Letters Patent, is

. 1. In a typewriting machine, the combination of a type bar, a pivotal support there- 'for having a fixed pivotal axis, the pivotbearing comprising a tapered pivot and a tapered depression against the tapered sides of which said tapered pivot bears and. only close to'said pivotal axis, the taper of said pivot being sharper than the taper of said depression and the point oft-he pivot terminating short of the bottom of the tapered depression; and resilient means for pressing said pivot and,depression togetherlen'gtlr wise of said axis.

2. In a typewriting machine, the combination of a type bar, a pivotal support therefor having a fixed pivotal axis,ithe pivot bearingcomprising a conical pivot. having a small rounded. end the rounded .urfaceoft which is a smooth continuation or the conical surface, and a tapered. depression against the tapering sides of which the rounded end of said conical pivot bears, the taper of said -pivot being sharper than the taper of said depression; and resilient means for pressing said pivot and depression together lengthwise of said axis.

3. In a typewriting machine, the combina-. tion of a type bar, a pivotal support therefor tion of a type bar bearing comprising a tapered pivot having its end rounded, and a tapered depression against the tapering sides of which the rounded end of said tapered pivot bears, the taper of said pivot being sharper than the taper of said depression, and resilient means for pressing said tapered ,pivot and said tapered bearing depression together endwise. 1

In a typewriting machine, the combination of a resilient hanger arm, a type bar,. and a pivotal connection between said hanger arm and type bar, said pivotal connection comprising a tapered pivot havingarounded end, and a tapered depression against the. tapering sides of which the rounded end of said tapered pivot bears, the taper of said pivot being sharper than the taper of said depression and said lcsilie'nt hangerarm being under tension to press saidtapered pivot andsaid bearing depression together endwlse.

' 6. In a typewriting machine, the combination of a type bar, a pair of resilient ranger arms,.and a pivotal connection between said type bar and said hangerarms comprising tapered pivots and tapered bearings, the taper of each of said pivots being sharper than the taper of the bearing, theend of each pivot engaging the tapering sides only of its bearing, the point of each pivot terminating short of the bottom of the tapered depression, and said resilient hanger arms being under tension to press said tapered pivots and said bearings together endwise.

,7. In a ty pewriting machine, the combina tion of a pair of resilient hanger arms, a type bar mounted between said hanger arms, and a pivotal connection between said type bar and said hanger arms comprising tapered pivots on said type bar and tapered bearing depressions in said hanger arms, the taper of each of said pivots being sharper than that of theco-acting depression, the

end of each pivot engaging the tapering sides only or its bearing, the point of each pivot terminating short of the bottom of the tapered depression, and said resilient hanger arms being under tension toward each other 8. In a typewriting machine,v the combinm tion'ot a typo bar, a two-armed hanger as. said type bar, and a pivotal connection between said type bar and hanger comprising a tapered pivot on each side oi said type bar and a tapered bearing depression in each of the arms of'said hanger, the taper of each of hanger arms under tension toward each said pivots being sharper than the taper of the depression, the point of each pivot terminating short of the bottom of the tapered depression, and said pivot bearing againstthe tapering sides only of said depresslon, and means joining the arms of said hanger t'or putting said hanger arms under tension toward each other.

9. In a typewriting machine, a type bar hanger arm made in goose-neck form to increase the resilience of said hanger arm.

10. In a typewriting machine, the combination of a type bar, a hanger arm made in goose-neck form to increase its resilience, and means for putting said hanger arm under tension.

11. In a typewriting machine, a U-shaped hanger having-its arms made in goose-neck form for the purpose set forth. a

12. In a typewriting machine, the combination with a type bar and its piv0t,'of a U-shaped hanger in the arms of which said pivot bears, and means for placing said hanger arms under tension,said hanger arms being of goose-neck form to increase their resilience.

13. In a typewriting machine, the combination with a type bar and its pivot, of a U-shaped hanger in the arms of which said pivot bears, and means fonplacing said other, each of said hanger arms having a cut-out 13, for the purpose set forth.

.14.- In a typewriting machine, the combination with a type bar and its pivot, of a U-shaped hanger having a connecting derice, as a rivet, between the arms thereof and having said type bar pivot bearing in said arms, said'arms bein cut or split between said connecting devlce and said pivot so that the actual length of each of said arms beyond. said connecting device is materially greater than the direct distance from said connecting device to the end of said arm, for the purpose set 'forth.

15. In a typewvriting machine, the combination of resllient hanger. arms having circular tapering depress1ons, and a type bar having ivots which bear only near their ends an against the sides only of said depressions, and each pivot terminating short of the bottom of the tapered depression.

Signed at Syracuse, in the county of Onondaga and State of New York, this 11th day of June A. D. 1907. a

GEORGE A. SEIB. JOHN W. KOERNER.

Vitnesses V. G. HAY, JOHN H. HAMEL.

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