US1250571A - Belt-replacing device. - Google Patents

Description

A. P. FAY.

BE-LTREPLACING DEVICE.

APPLICATION FILED Nov. I, IQIa.

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BELT-nnrnaoimy DEVICE.

Toi all whomz't may concern .vv

Be it known that I, AUGUSTINE bury, in the county of Suii'olk and 'State of Massachusetts, have invented an. Improvement in Belt-ReplacingDev-ices, of Which the following `is a speciticationf In many instancesit is a;commoneXpedi ent to slip a belt oil' of a pulleyonto .the shaft or counter-shaft bearing the pulley, and to permit it to rest loosely onvsaid shaft, and then tov replace it on the pulley When desired oruse. In replacing a belt onl a pulley While the latter is rotating requires the eX- ercise of considerable skill, and there is much danger attending the operation.`

This invention has Vfor its object the construct-ion of an implement especially adapted yfor this purpose, by which a belt, Which is loosely supportedk on the counter-shaft, may be engaged and 'placed inV engagement With the pulley and there held'untilit has become correctly arranged on the periphery thereof, the operation being/accomplished easily and quickly and Without danger.

f Figure 1 is aside elevation of a belt-re-` placing. implement employing this invention.

i' Fig. 2 is a similar viewillustrating the devicein use. Y.

Fig.f3 is an ,enlarged vievv'of they .device With a side plate removed to uncover thev parts concealed by it.

Fig. 4 is an enlarged plan vvievvfoi` the a round belt.

Figs. 7 andr8 are. side-and bottomplan views,respectively,f of another form of belt-y engaging member. V

Fig. .9 is a detail view of a ,pulley4 guide Which may be associated with the device.

In the drawings an implementis shovvn forthe purpose of illustratingone embodiment of my invention. 10 represents a pole,

which may behollovv. and ofany desired length, and having-.one otits end-portions bentlor curved in thearc 4ofa circle', as at 12,l or" otherwise formedyso that .lts upper ende` Pv. `FAY,a citizen of the United States, residing at Rox-l Sviieae 0f Lit-tera menti liatentedalleeel, 191mf .Appncationnieanovember1,1916. srfia1 No. 123,532; "5

be composed? of fseveral "strips ofA vvoodfsei cured'together,orin lieu'thereof, it maybej. made of .-metal;t Itmayfbe `made' hollovv` =tor the Whole ora part ofits-length. At the eX-` tremity-ofits curved 'orforvvar'dly projecting end-'portion a belt-engaging element is' ar` rangedf.--Said element mayconsist of abloc'kf 15,1adapted'tosupportla belt-engaging mem;l ber` on its under side.k The belt-engaging member may consistfof afplate 18, see Fig. 5,' having arranged thereon atfoneend a boss, 19, which is adapted to [enter av correspondingly shaped recess, transversely arranged in the underside of the block l5, so that it may be .securely-held bytheblock.' When the boss isAV arranged {ginits recess the plate 18.4 Will bef-extended laterally from the block 15,- asan arm, for a distance equal'to thelvvidth of a belt to be engagedby it, or a greater invention no other means on the block 15. v Y

rThe .block and plate supported by-y it, as here shown, provides an arm extended lat erallylfrom a supportyvvhich" arm'is adapt# edto engage the under side ofa belt, but so far as my invention isfconcerne'd said beltengaging elementgmayi be otherwise 4formed to l provide avlaterally'extended arm for en.-v gagement With'the under side of the belt.

7o distance'so that belts of different Widths may beLengaged; In a simple embodiment of'my needbe arranged Said belt-engaging'jelement `is adapted "tobe connected Withy the-pole in 'such manner'as to be movablerelative thereto, yet its connectingvmeans is `preferably so 'constructed' as to act to automatically return the'belt-4 engagingelement to normal position.

As hereshown, the block 15 is connected to one end of 'a `long flexible vstrip 20, he' shown as aflat metallic strip, or'inwli'eV l thereof any other form of `flexible connbtidhll" may be employedyand'the -otherfnd f said strip is connectedto'lone endlljolfth lnlgtspiral: spring 22,' the otherendlif saidfspriii'gi being connectedk to a xedip'oint! 'l SaidstripI and spring arelshown'lasfarralhgedliri tll'l'elhL lovvv compartments or 'bore'oi'th'ef polebat' ltlie" upper end-portion) iihlerol andxtntldpvvnl-O Ward fonia nonsiddraldlevdistanee;las repi'eI sented'in Fig. 3. The normal tendency of the spring is to contract and. to draw the strip and block attached thereto inward un"-r til the block engages the end ofthe pole which is its normal position. rl`he block has a shoulder 1G, adapted toabutmagaiiistmthe` end of the pole totthusilin'iit `itsinov'ement side of the belt, by which the belt may be lifted-from the jcountersh-.ift to the pee riphery ofthe pulley; the flexible strip adf mits of a movementl of the arm bodily .with

relation tothe pole in any desired direction,

sothat the arm may engage the periphery of the pulley and follow therewithin acirculary path, and thespring acts asan elasticl means which.permits'relative movement of theV arrn and automatically:returns the arm to normal position.

'When using the implement constructed, as so far described, the person manipulating the saine places the projecting portion of the plate 18, or arm, beneath the loosely supported belt and lifts the belt .into engagement wlith'the periphery of the rotating pulley, as represented, in F ig. 1,'resting said plate or'arm directly on said periphery, and when in such position, the. belt'. is extended over the top of the plate orarm to hold the plate or arm in4 engagement with the pulley, whereupon the rotating movement of. the pulley is utilized to carry said plate or arm, and block to which it is attached,-aroiind with it, the flexible` ,connecting strip Y29 bending, and the spring stretching,V to admitlof such movement, of the platev or Varm and block, as represented in Fig. 2. As soon as the plate has carried `the belt, say. onelialf of a revolution or thereabout,.and when it arrives at that portion ofthe periphery of the pulley that .the -belt ordinarily leaves said periphery, the Vplate orarm will be freed, whereupon the spring- Will contract and draw inward the flexible strip, and cause the plate, and block to which itis attached, to return to normal position. Y Y

lThe transverse recess in the block 15 eX-` tends froniside to side thereof, so. that the boss 19.1011' the belt-engaging arm maybe'- thrust inward from either side of the block,

and the arm V1S extended laterally there-V from in either direction. .In F ig. 5, the arm 18 is adapted for engagement with a flat belt, but in Fig. 6 another form isshown having a curved arm 25 for engagement with a round belt. As the belteengaging arm'is adapted for engagement with the periphery of a pulley andv to beheld thereon while the v belt is being replacedfthefarm may have YAYIn lieu-ofproviding` for the reversal of the laterally extended belt-engaging arm, a

doubldarined member may be employed (see Figsx? and 8) wherein a plate 40 isshown,

, having its `boss 4:.1 Qi-iother attaching-means arranged intermediate its length, Y so Mthat arms are provided which extendiat kopposite Waysf i,l v l. y

Yl`here1`niaybei associated with. saidV imple-v ment, belt-Vguiding,means whereby,when-Ithe belt-engaging element. is placed'lin engage-A ment with the undersideofthe. belt, Lillie-belt' itself, at a pointbelow; the pulley, maybe received in the guide, and Vthus l'guided -into positionwhile it .isbeing lifted. r`As repre sented in Fig. 1, said belt-guide[comprises ay pair'of arms 50,50, which jarerigidly at-V` tached to the pole, at 'apointjbelowtlie'jor wardly extended end-portion thereof, said arms. extending forward ,andd being spaced apart suiliciently to receive between tl'ieint'he belt. for detachable connection withfa Vcross-.bar 52 arrangedY onVV the pole so thatfi't ymaybe connected .with either end-portion` offthel cross-bar.

, There may be ment, a. suitable pulley-guide (seeflligslfand 9^).V ASaid pulleyguide lconsistsfofan ai'in 60, slidably arranged!Y in la recess Y in a blockY 61,which has 'a boss 62 thereon', adaptingf'itf to `eiigagekthe transverse v'recessintlie under side of the block 15, adj s'i'centY the belt-engag ing element'.` Thearin-GO' has `at its, entita projecting pin 65, adapted toengagethe edge of' the iriinl 'of-tli'e'fpulley. his' arm may 'beaad'just'ed tof different sliding posi'- tions for pnlleys ofdifereiitfwidthsy* .l i anim; f e

A belt replacing {deviee comprising a'pole having a'- `curved end portiomaa retractile springarranged within said pole belowY the curved end portion thereof and securedjati one end, to said pole,a bloclg removablyar-4 ranged in the ycurved end Vportion of said pole, alug'forme'd on said block arrangedto lit within a socket formed in theciirvedend of saidpole', whereby said blockfis normally maintained "in a Vpredetern'iiind- Lrelative fengaging position with said pole, meansieare Said belt-guide 50 may be arrangedv associated with" the *impleVY ried by said block arranged to Vengage fabelt,`

and p a V flexible strip extended V'througlntheV` curved end portion of said ypole and connect-V ed to the free endof said retractile spring;

and said block, whereby saidY spring serves to Anormally maintain vsaid'b'locliin 'engagei ment with the end of said pole, and is eX- l In testimony whereof, I have signed my tended by the bodily movement of said block name to this specification, in the presence of away from the end of said pole in the open two. subsoribingwitnesses. ation of replacing a belt, and retracts, sub- AUGUSTINE P. FAY.V

sequent to the belt replacing operation, to re- Witnesses place said block in normall engagement with B. J. NOYES, the end of said pole. t `H. B. DAVIS.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents.,

Washington, D. C.

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