US1383940A - Bumper for looms and the like - Google Patents

Description

O, P. HARGROVE.

BUMPER FOR LOOMS AND THE LIKE.

APPLICATION FILED JUNE I5. 19m

'1 ,383,9O Patented July 5, 1921..

6 g l I e 6* m/vrm I I e ran/d e g 5 7 narrate srarris Application filed June 15,

T0 all whom it may concern:

Be it known that I, ORLANDO P. HAR- enovn, a citizen of the United States, residing at \Vayland, in the county of Steuben and State of New York, have invented a new and useful Improvement in Bumpers for Looms and the like, of which the following is a specification.

This invention relates to bumpers of the kind with which the picking stick of a loom is adapted to cooperate to stop the movement of the picking stick after the shuttle has been sent acrossthe loom.

Bumpers of this kind as hertofore made frequently consist of a body or block of resilient material secured to the frame of the loom, and these bumpers are objectionable because they do not possess sufficient res1l1- ency and consequently cause frequent breaking of the picking stick. Other bumpers consist of a strip of leather or the like stretched across a pair of rigid arms. These bumpers were objectionable for the reason that the leather strips andthe arms to which they are secured frequently break due to the continual shocks to which they were subjected to and to the fact that these bumpers do not possess suflicient resiliency. V

The objects of this invention are to provide a bumper of this kind which will offer a gradually increasing resistance to the movement of the picking stick in such a manner as to materially reduce the tendency of the picking sticks to break and greatly increase the durability of the bumper; also to improve the construction of bumpers of this kind in other respects hereinafter specified.

In the accompanying drawings:

Figure 1 is an elevation showing a bumper embodying the invention in operative relation to a part of the frame of a loom, and a picking stick.

Fig. 2 is a side elevation of the bumper on an enlarged scale.

Fig. 3 is a front elevation thereof.

Fig. 4 is a top plan view thereof.

Fig. 5 is a section thereof on line 5-5, Fig. 4, on a reduced scale.

Referring to Fig. 1, A represents a part Specification of Letters Patent.

ORLANDO 1?. I-IABGROVE, OF WAYLAND, NEW YORK.

1920. Serial No. 389,060.

of the frame of a loom and B the picking stick which is pivoted at its lower end and the upper end of which is adapted to strike The bumper shown more in detail in Figs;

2 to 5 includes,- a frame member D which may be of any suitable or desired construc tion and which in the construction shown has an intermediate fiat portion adapted Patented July 5, 19a;

to be secured to the frame of the loom, and I end portions d which extend outwardlyf from the portion (Z. The frame D in the construction shown is made of a strip of metal having the end portions cl bent outwardly and twisted through a quarter of a revolution so that the ends thereof lie substantially in horizontal planes. A frame of any other suitable construction may be used if desired. I V

The picking stick is adapted to strike against a strap or band E which may be made of leather or any other suitable flexible material and which. is yieldingly stretched across the space between the outwardly projecting ends of the frame member in such a manner as to offer a gradually increasing resistanceto the movement of the picking stick after the stick strikes the intermediate portion of the strap. Any suitable means may be provided for holding the strap taut between the ends of the bumper frame and for permitting the strap to yield. In the construction shown for this purpose the ends of the strap or band E pass around the outer portions of pulleys or rollers F arranged on the projecting ends of the bumper frame.

Any suitable means may be provided for the construction shown'is provided at opposite ends with "loops or eyes 9 through which rods 9' extend. These rods are suitably connected to the ends of the strap by means of lacing g means for connecting the ends of the spring Any other 7 suitable with the ends iof the strap B may, however, be used. Whenthe picking stick strikes the L f of 'thepicking-stick," as indicatedin dotted lines in Fig. at, thus stretching the spring G and turning the rollers or pulleys F slightly 'flbollt: their pivots. The strap or bandjE offers a'g'radually increasing resistance tend- 7 ingto; cheek the movement of the picking" stick, thisfre'sista'nce increasing as the strap aogis-nioved from its straightline position'and .forexan v V. anda-and th'] strap is also preferably-held'f K the movement of the picking asthe stretch at the spring isincreased.

\ V V In order to hold the: strap E in thep'ropen i; s Lrelation with reference f/e'rs F, the strap-is preferably secured to each to the pulleys orrolloft-he pulleys by any suitable-means, vsuch ple as ascrewjorjpin e, Figs.'2

out of engageof the pulleys.

I "By means or this arrangement the buffer 'oifersi a gradually increasing resistance to stlck and stops the' 'picking stick gradually; The strap E not being rigidly secured atits ends yields by stretching the spring G and turns; the pulleys F so that in case'the picking stick strikes the buffer an exceptionally heavy blow,. no damage'results', and the blow is taken "up by the stretching of the springG.

V The buffer described, therefordsaves breakf ends of'the arms id areibent to lie in the a so that the tendenriy 7 age of the leather straps heretofore used in, place of the strap E and also 'savesbreakage of the picking sticks; Thebu'fierframe' made as described also has the advantage of great strength due to the fact that the plane in which the pull of the strap E acts,

greatly 'i'reduced. ue to they construction jected to such severe shocks'as wouldbe the case ifthe strapwere rigidly secured to the frame. The buffer also has the advantage that when it is desiredto renew thestrap,

spring from the ends of'the strap connestinglthe strap from the'pulleys, and

(The pulleys or rollers" F maybe pivotally mounted on the arms d this can easily be done by detaching the to be struck.

' stick,

to break these arms. is for'stretching the same across said space and I I resisting movement thereof. described, the arms 03 are however not sub-' and disof the bumper frame any suitable 'means, for example, rollers may be pivoted on pins 7", the lower ends of which are rigidly secured to the arms 7 i v way between the pulleys and encounters com-' .paratively little resistance in moving the V strap out ofthe plane in which it" is r -stretched The resistance, however, in-' middle portion or the strap or band E, this n-2 p will be; pushed inwardly bythe: force creases veryfrapidly .due to the action of the I claim as my invention due to the direc- 'tionin wh'ich'theforces-act;

1. The combinationwith the'nlime loom and a picking stick, of'a 1 bumper .ifor

said picking stick including 7 I a fiameih'gm-fl beradapted to be secured lZQ'SZLld loom. frame and'having arms extending outwardlytrom r theloom nam -a flexible member adapted by said pickingstick', 'part's on" said arms aerosswhich'said flexiblemember is stretchedtyanda sp ring connecting the ends of said flexible member for stretching .i;

a body 'portionradapted tobe secured to the loom frame andvhavlng arm'sextenldingoutsaid flexible; member and extending trans "versely ofsaidarms. q

2. j A- picking stick bumper for looms and the like, including a frame 7 emes; havin wardly beyond said body portionya flexible I.

member stretched between ;sa;id;arms'and resilient means also arranged be-1' adapted toreceive'the blows-htthe picking tween "said; arms, and cO'IiI BQtin'g with the 7 clujdinga frame having rollers and ,co'nnectingtheends of said band comprising a. strip of metal provided with I ends of said flexible inember for'f stretjching said flex ble member acrosssaid arms, A bumper for" looms and the" like; 111-] 115 r 4. Abumper for looms and thelike5 finQfj .cluding a frame a rear portionfhaving. its 1 fiat faces arranged in v substantially Qvertical planes and provided with arms whichare 1 20 twisted 'to lie' in substantia'llyhorizontal-i l1 planes, a band of fleXible mate'riaL aha "leans for stretching said: bandiacro s's v the; space'between said arms and forLyieldingly resisting movement of said band 1 5. A bumper for looms; and the like in cluding'a framecomprlsi n'galstripjof met l provided with aqrear portionhaving its 105 pairof outwardly r extending iarmsj a pair I of rollers pivotedflon said arms 'a-n'd spaced apart, albandjoi j flexible material extending across th spaee between' said' rollers and extending partly around the same, and" resilient 'ineans also. 'extending ac'ross the space between. said flat faces arranged in substantially vertical and means for resiliently opposing the planes and provided With arms which are movement of said band.

twisted to lie in substantially horizontal Witness my hand this 11th day of June, planes, rollers pivotally mounted on said 1920.

arms and adapted to turn about substan- ORLANDO P. HARGROVE. tially vertical axes, a band of flexible ma- Witnesses:

terial extending partly around said rollers GEORGE H. STAIMARIUS,

and across the space between said rollers, WILLARD H. DEITZEL.

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