US1436724A - Belt splicer - Google Patents

Description

I. IVI. PRUDDEN.

BELTISPLICER. APPLICATION FILED FEB.2I. 1921.

11,436,724; I Patented Nov. 28,1922.

7 v. I s Flgl.,

l .r y 5255,/ A

Patented Nov. 28, 1922.

Tnnonoiafn M. r'nunnnn, or GRAFTON, MASSACHUSETTS.

:BELT SPLICER.

Application mea February 21, 192i. serial in. 446,648.

To all coi/toncit mayconccrit: i

Be it known that I, Trrnononn M.` PRUD- DnN, a citizen of the United States, and resident of Grafton, county of Worcester, `State of Massachusetts, have invented an Improvement in BeltSplicers, of which the following description, in connection, with the accompanying drawingyis a specification, like characters on` the drawing representing like .10 parts.

j This invention relates toimprovements in belt splicers and the object thereof is to provide a novel and simplified one-piece metallic ldevice for splicing belts, particularly such .1,5 lbelts as the tapes which are used fory driving the spindles of spinning or twisting machines. l j

The usual method of splicing tapes for spinning machines and many other belts consists in lapping over `,the edges ofthe tape or belt to be spliced `and sewing the overlappedportionsof the belt together by a fportable sewing vmachinel rlhe splice thus formed requires about 2 inches of tape to A form the joint and the sewing of the same is diijlicult after the tape has beenlapped over the several pulleys which it drives as ,but little slack is available to allow manipulation of the tape ink the `sewing machines.

. -llhen the tape wearsit usually breaks at, the

sewed joint. The tape is then too short to be used unless a piece is spliced into it. The

splicing of tapes in this manner, in any event, requires the use of a skilled sewing machine operator and considerable time is consumed in transporting the sewing machine from place to place about the spinning or twisting room.

The present invention contemplates the `40 production of a metallic tape splicer which will fasten `together the ends of the belt without the necessity of having extended overlapping ends. j

In. the splicing of such belts as tapes for spinning and'twisting machines and the like it is desirable that vthe strength of the splice or joint shall not exceed that of the tape itself so that if any breakage occurs it shall be in the splice.` rlhe present invention is k designed to produce a splice which will give way under less strain than that which would be required to break the tape and which can be readily replaced without the necessity of splicing on an additional piece of tape.

In am aware that heretofore metallic splicers have been used, but such splicers `have consisted of two or more parts which have to be assembled. `Such devices require more or less skill in assembling and the parts thereof frequently become lost so that con siderable difficulty is encountered in using them.

The object of the present invention is to provide a one-piece `metallic belt splicer which can be readily applied by the usual operator of the spinning machine. t

A further object of the invention is to provide a metallic belt splicer which will grip `the end portions of the belt ywitha toggle-like clamping action when the belt splicer is appliedthereto. y

A further object of the invention is to provide a belt splicer of the character described which will lie upon the outer face of the belt and which `will not contact with either the face or the flanges of the driving pulleys when in use. i.

A further feature of the invention consists in providing abelt splicer 'of the character `specified in which the body of the belt splicer will cover andv conceal the ends of the belt which are being secured together.

Other objects andy features of the invention will more fully appear from the following description. and the annexed drawings and will be pointed out in the accompanying claims.

Preferred embodiments of my invention areillustrated in the annexed drawings, in which,

Fig. l is a perspective view of one form of a one-piece metallic tape splicer in position to be appliedto the ends of the tape;

Fig. 2 is avertical longitudinal sectional view through the joint formed by the tape splicer;

Fig. 3 is a perspective view of a different form of tape splicer embodying my invention;

Fig. 4 is a longitudinal sectional view through the tape splicer and tape showing the oint made by the splicer illustrated in Fig. 3;

,Fig 5 is a detail view showing the tape endete be spliced inserted in the tape splicer in the 4position in which the splicer is adaptedto be clamped upon the tape, the jaws of the clamping instrument being shownin cross section.;

Fig. 6 isa similar view illustrating the CIK joint formed when the tape splicer has been clamped upon the tape by the jaws of the clamping tool; and,

Fig. 7 is a side elevation of a clamping tool showing the manner in which the splicer is applied to the tape.

The tape splicer which is illustrated in Fig. 1 comprises a b-ody 1, preferably of sheet metal, which is desirably of slightly less width than the width of the tape to be spliced, 'and provided with `a central rectangular opening 2 to receive the ends 3 and 4 of the tape `or belt. The body portion 1 is provided with upturned ends 5 and 6 which desirably converge toward each other. One tof the sides ofthe body portion desirably is provided with an integral extension 7 of a width slightly less than the distance between the bases of the upturned ends 5 and '6, theeXtension 7 being connected to said side by a relatively narrow strip 8 which is `easily bent to enable the extension 7 to be folded ldown between the ends 5 and 6.

The extension 7 is bent into the form of an arch or an inverted V so that the sides 9 and 10 thereof form angularly disposed clamping elements, the edges of which are adapted to engage the end portions of the `tape and when bent toward parallelism with Ythe base, or toward the same plane, will produce a toggle-like action which will clamp the ends of the belt firmly against therupturned ends v5 and 6 ofthe body portion.

The ends 5 and 6 may then be bentdownwardly to cover the ends of the tape and Ato aid in retaining the clamping elements rigidly in clamping position.

By reason of this arched or V-shaped construction ofthe extension 7 the clamping elements 9 and 10 are in effect eXtensible, since as the extension v7 is bent toward parallelism with the base the edges of the `clamping elements are forced outwardly away from each other into the clamping relation with the lianges of the body portion above described.

Another embodiment of the same inventive idea is illustrated in Figs. 3, 4, 5, 6 and '7 in which the tape splice is in the form of a sheet metal piece having a body 11 and upwardly turned flanges 12 and 13 which are the clamping elements and are disposed in Vangular rela-tion to the base and to each other.y When the clamping elements 12 and 13 are, bent downwardly toward parallelism with vthe base, and consequently toward parallelism with each other, the adjacent edges 11l and 15 are forced toward each other and grip the ends of the belt, which are placed `between them, with a toggle-like action.

The manner in ywhich the splicer, illustrated in Fig. 3, is applied to the ends of the tape is illustrated in Figs. 5, 6 and 7 in which the clamping tool is illustrated as a pair of pliers having jaws 16 and 17, the

jaw 17 being provided with an open ended slot 18 of suificient width to receive the two ends of the belt to be spliced.

In operation the ends of the belt are slipped edgewise into the slotI 18, a suflicient amount ofthe tape protruding between the jaws to provide a suitable anchorage for the splicer. The splicer is then slipped endwise over the ends 'of the tape as illustrated in F ig. 5- The clamping jaws of the pliers are then squeezed together causing the clamping elements 12 and 13 to be bent toward the base 11. As 'the clamping yelements 12 and 13 are thus bent toward the Vbase 11 the adjacent edges are lcaused to approach each other and yengage the outer faces ofthe ends of the tape with a togglelike :action increasing in pressure as V)said elements approach parallelism or alinement. When the tape splicer has been fully .compressed upon ythe ends of the tape-:the ends are wholly enclosed within the splicer.

It will be noted that in `splicing a `tape by either of the constructions above described the splicer will lie wholly upon the outside of the tape and will, therefore, not come in contact with the face of the pulley.` By forming the belt splicer of less vlength than the width of the tape the 'edges of the splicer will be prevented from engaging the {ianges of the driving pulley. l y

When the splice formed by ra splicer of the character above described becomes broken a new splicer may be readily 'applied since at most only a ver short vportion of 4one or rboth of the ends of the Ibelt or 'tape will be broken off or will -need to be removed and the stretching of t'he tape or belt when in use wil-l readily tsupply the additional amount of stock required for the application of a new splicer.

Belt'splicers of this character may also be employed for taking up the slack, in such belts as driving tape for kspinning machine spindles, by merely forming a 'bight in the loose belt and forcing the same upwardly through the jaws of the splicing tool and applying the splicer to said bight in a manner above described.

It will be understood that the embodiments Aof the invention disclosed hereinare illustrative and Vnot restrictive and that various changes in form and `construction `may be made within the spirit and scope ofthe invention covered by the following claims which are intended to cover any form of one-piece belt splicers in which the clamping elements 'exert a toggle-like l'action upon the end portions of the belt or tape which are to be secured together.

Having thus described my invention, what I claim as new, and vdesire 'to secure by Letters Patent, is:

1. A belt splicer comprising a base `adapted to cover the ends of the belt'to be spliced,

pliable gripping elements disposed in angular relation to said base adapted, when said elements are bent toward parallelism, to exert a toggle-like clamp-ing action upon the ends of the belt and also to clamp the end portions of the belt against said base.

2. A one-piece belt splicer, adapted to cover the ends of the belt to be spliced together, comprising a member having extensible angularly disposed elements provided With belt-engaging edges adapted to engage the saine face of the end portions oi' the belt and operating when bent toward the same plane to exert a toggle-like clamping action upon the engaged ends of the belt Which will clamp the end portions of the belt against each other between said belt engaging edges and Will also clamp the ends of the belt against said base.

3. A belt splicer comprising a metallic plate bent transversely into substantially U- shape and presenting angularly converging elements having their edges spaced apart to receive the parts of the belt to be united therebetween and adapted, when bent toward the saine plane, to clamp the parts of the belt therebetween and against each other with a toggle-like clamping action.

In testimony whereof7 I have signed my name to this speciiication.

THEODORE M. PRUDDEN.

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