US1815894A - Timing gear - Google Patents

Description

A. J. BAKER 1 July 2-8, 1 931.

TIMING GEAR Filed Dec. 17, 1923 I N V EN TOR. flrfh 0/ J. Baker? tively hard which term is intended herein flangedv member 17 is recessedito receive the peripheral edge portion of the disc 16,as

shown in Figs. III and VII. Thejdisc is provided with a sleeve or hub 19 inserted; to be understood that this showing and deuponthe portion of thegenerator shaft and is securedby a 'key 21 rigidupon the shaft and projecting into the slot 22 formed "in said sleeve. The non-metallic orflber ring 18 is providedpreferably with four holes or recesses 23, two of which are adapted to receive plns or pro]ect1-ons 24 extendmg inwardlyfrom the disc 16, and the other two adapted toreceive similar pins or projections extending in anopposite direction from V plied, by means of a non-metallic}driving dis'clG. The-washer serves. to both hold the v the flanged member 17, Through the me dium of these pins, thev flanged member 17 is fthus producin ,the over-hang mentioned above. One 0 the important features of the present invention is the combination of this particular type of generator mounting and .e an anti-thrash gear of the kindshown'and described herein. r 1 1 While .I have shown in considerable detail,

I a specific embodiment of my invention, itjis scription are illustrative only, andthat I do not regard the invention as limited tothe details of construction illustrated or de- "s'crib'ed, exceptinsofar as I have included such limitations within the terms of the followingclaims,.in which it is myintention to claim all novelty inherent in" myiginvention broadly, as well'as specificallyrf' I claim as my inventions. e 1; In combination, a, power shaftja gear :upon the shaft including a'Vrelatively-rigid non-metalliclring and two oppositely-posiadapted to drive the fiber ring .18, and the tioned'members, each ofwhich is independlatter to drive the disc 16, which' in turn -dri veswthe generator shaft 12.; Thus power is transmitted to the generator shaft or to any other shaft to which the gear may be apring located Within the' enclosure or chamber formed by the fittingtogether of the disc 16 and flanged member 17, thelatter of which is provided with a bore large enough to re ceivethe free end of the sleeve 19 on thedisc 18. The pins or projections 24 and 25"are ,pref'erablyriveted in position upon thedisc and flanged memberasindicatedat 26 in Figs. III and VII. V 1

v ,The gearreceiving portion 20 of the generator shaft is provided with a shoulder 27 "adapted to prevent inward movement of the gear, while outward movement of the gear is prevented by awasher 28 on the reduced portion 29 of the shaft, the washer being secured by anut 30, and sufiicient'playbeing allowed between theshoulder andw'asher to prevent clamping :of the-flanged member 17 upon the several partsofthe'gear in assembled posi- 5 tion, and to prevent outward displacement of flthe'fsame upon the shaft, it beingonly necesf degree of hardnessand rigidity.

f's'ary toloosely assemble'the several portions 7. of the :shaftg A V V a The driving ring l8imay be constructed of slightly yieldable material, but preferably -2 comprises a fiber ring having the desired gear before applyingthe latterto the f I "The generator 11, as before statedpis sup '-;]'ported by whatis known as theS. A. E. mounting, being secured atits'frontlend to the-portion 15jof1 the engine'easing contain; in'g'the timing gears, as by means of the bolts ;31 shown in Figs. I and VIII.- The generir ator is; therefore supported at its front end only and is held in spacedlrelation .to-the fgiengine frame orcasingf at all other points,

ently connected 'with'the ring and, one" of whichfis provided with teeth,anda clamping member serving to hold the parts of the gear together and adapted toprevent longitudinal displacement of said .parts upon the shaft,

2.=In combination, a power shaft,--'a gear upon one end of the'shaftfincludinga fiber ring and'driving and driven members independently connected therewith at points substantially equidistant from theoenter of the ring, and meansfupon said shaft end for clamping-the gear thereon; e. 1

3., In combination,a1.power-shaft, a gear upon; one end of the shaft including three separate members, two of which are provided with independently mounted pins priojecting in opposite directions, the freeends of e the pins being disposed within recesses formed in the thirdmember, and common means upon said shaft ,end for holding said members together and for holding :them againstdisplacement uponthe shaft. ,7 i

upon one endof-theshaft comprismgia nonmetallic' ring :separate members I mounted upon {each side of l-the ring and forming an enclosure-therefor, each'j of" said members having pins projecting therefromv info ,re-

'- ce'sses formed in the-ring, thefpins of eaohgof saidmembers terminatingshort of the opposite member, and: oommonimeansefor holding ,said parts together andfor securing gthem 'upon'said shaft. -V

5.V In combination, a power shaft,;a gear -V uponone end' of the shaftincluding a disc 7 keyedthereto, a flanged member adapted: to

receive the disoand having 'teethi formed thereon, a non-metallic ring. interposedbedtweenthe disc and flanged member, pins extendmgin opposite directions fromsaid disc l-and sai'd flanged" member andadaptedto en; gage said ring mrecesses formed therein, a

4;;In combination, "apowe rnshaft, a gear 7 H I} washer upon the iree of the shaft, and

'Fmeans for clamping said washer upon said a Y gear.

;6 In combination,a power shafQ a' gear 7 comprising a plurality ofinter-engaging porr tionsfas'sembled upon; one endofthe shaft and including a'shock absorbing: ring, and

; common means i for holding said portions to 6' tu'dinal gether and forretaining. themagainst longidisplacement upon the end of the shaft; r 3

'7. In combinationya gearicomprising a i disc having a sleeveadapted to be keyed upon to receive the peripheral portionof the disc, aring constructed of relatively hard, non

'a' flshaft, a flanged" member having teeth formed thereon andfprovided with a bore" adapted to'receiveIt-he free end of said-sleeve and'also having a recessed portion adapted metallic material positioned between I said discand flanged member: and'adapted to surround said sleeve, mea'nspoperatively connecting'saidflanged member with said-ring,

means operatively connecting the ringr'with said disc, and clampingmeans :for maintainv I ingthe assembledrelation Of the gear parts, said clamping means having a stop for pre-' venting cramping'of said parts. r

8; In combination, ,a gear comprising a disc having ajsleeve adapted to be keyed upon a shaft, a flanged'memberhaving teeth 'formedthereon and provided with'a recess 1 adaptedfto receive the peripheral portion of said disc, a ring constructed of relatively hard, non-metallic, material inserted upon sa'idisleeve between thefdiscand flanged meniber, driving connections ibetween the flanged j ,9;- In comb'nation', a gear comprising two t tween them, a relatively hard "non-metall c connectionsbetween one of saidsections and I thering, independentidrivlng connect ons between the ring'and the otherllof smd metal fsectlon's, a'n'dmeansin'engagement-with thej, a

restrain ng relative axial i 'inetal sections for "movement. q

testimony whereof I afliXEIny signature.) ARTHURJ. BAKER.

member, and the ring and between the ring and saidfdisc mean'sfor holdingfithe gear r parts in'llassemble'd relation, a'nd means for preventing the cramping ofthe ringbetween thdi e and'fianged member. .r

metal sectio'ns positioned "one upon another I and'adapted' to formfa' closed chamber berin'g. disposed withinl said chamber, driving

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