US2265604A - Belt splice and method of making the same - Google Patents

Description

De@ 9, 1941.v VT, P, KNQEDLER zaal-1,604

BELT SPLICE AND METHOD OF MAKING THE SAME Filed April 10, 1959 1 k 'f///////////1///////////////// 1. 5` \x\\\\\\\\\\\-\\\\\\\\\\\\\\\\\\v if za fr l?" i INVNTOR.

BY neva/aref poen/(ef,

Patented Dec. 9, 119,41

BELT SPLICE AND METHOD `GIF MAKING THE SAME Theodore P. Knoedler, Columbus, Ind., assignor to Reeves Pulley Company, Columbus, Ind., a corporation of Indiana Application April 10, 1939, Serial N0.'267,197

4 Claims. (Cl. 24--31) The present invention relates to a belt splice and a method of making the same. It has particular applicability to belts of the type used in Reeves variable speed transmissions which consist of a strip of fabric or a series of parallel, longitudinally extending strands encased in a cover, and which are provided with transverse stilfener blocks. These belts are subjected to heavy duty, and the provision of a splice which shall be strong and solid and which shall still permit ready ilexing of the belt about relatively small-diameter pulleys has always been a serious problem in the commercial art.

The primary object of the present invention, then, is to provide a novel splice for a belt of the above-identified character, having the above specified and other desirable characteristics.

To the accomplishment of the above and related objects, my invention may be embodied in the form illustrated in the accompanying drawing, attention being called to the fact, however, that the drawing is illustrative only, and that change may be made in the specific construction illustrated and described, so long as the scope of the appended claims is not violated.

Fig. l is a fragmentary view of a belt of the character to which the present invention pertains, a ap of cover being stripped away and turned back;

Fig. 2 is a longitudinal section through a completed splice prepared in accordance with the present invention;

Fig. 3 is a section through belt ends prepared for a splice, fabric being used as the belt base; and

Fig. 4 is a view similar to Fig. 3 and showing a different arrangement of the fabric ends.

Referring more particularly to the drawing, it will be seen that I have illustrated a portion of a belt indicated generally by the reference numeral I and consisting of a plurality of parallel, longitudinally extending strands II which may be cord of any desired characteristics, encased in a cover I2 which may preferably be rubber-impregnated cloth. In preparing this splice in accordance with the present invention, the cover is stripped back as at I3 to expose the extremities of the strands at each end of the belt, and thereafter the extremities of such strands are displaced from the general plane of the belt, in any desired manner. In Fig. 2, for instance, I have shown the strand extremity I4 rolled back upon its own upper surface, and have shown the next adjacent strand extremity I5 rolled back upon its own lower surface. Thereby, prctrusions beyond `v`tremities of alternate strands in opposite directions from the plane ofthe belt, I do not believe that that is essential to the accomplishment of at least some of the objects of the present in vention.- Essentially, certain of the extremities of the strands at each end of the belt are displaced from the plane of the belt to form protrusions beyond the plane of the belt.

After the strand ends have been suitably displaced, the cover flap I3 may be folded back over the displaced extremities; and thereafter a block I6 of rubber or the like is vulcanized onto the belt end, embedding in itself the displaced strand extremities. Where, as in the illustrated embodiment, the alternate strand extremities are displaced in opposite directions from the plane of the belt, the block I6 will project oppositely beyond the plane of the belt, certain of the strand extremities being embedded in one projecting portion of the block and the other displaced strand extremities being embedded in the oppositely projecting portion of the block.

The opposite end of the belt is similarly treated, the displaced strand ends being embedded in a similar block I'I of vulcanized rubber, or the like; and preferably the two blocks I6 and I'I will be allochiral.

A block of wood or similar suitable material I 8, similar in external size and shape to the transverse stiffener blocks 25 applied at intervals to the outer surface of the belt, is formed with a socket or cavity I 9 shaped to receive the portions of the blocks I6 and I'I projecting from the outer surface of the belt; and a cooperating block 20, similar to the transverse stiffener blocks 26 applied at intervals to the inner surface of the belt, is formed with a socket or cavity 2| shaped to receive the portions of the blocks I6 and II which project from the inner surface of the belt ends.

'A bolt 22, having a rivet head 23, is now passed through the blocks 2li and I9, the head 23 seating against the inner surface of the block 2B; and a nut 24 is applied to the projecting end of the bolt 22, seating against the outer surface of the block I8. Preferably, a plurality of the bolts 22 and nuts 24 will be used to clamp the blocks I8 and 20 to the opposite surfaces of the belt, the sockets I9 and 2l embracing the projecting portions of the blocks I6 and II to hold the same together.

I have found that the structure disclosed and each consisting of a plurality of parallel strands; Y'

the free extremities of certain of the strands of each belt end being rolled back uponktliemselves v15 to form protrusions beyond planeof the bel-t in one direction and the free extremities of others of the strands of each belt end .beingrolled back upon themselves to form protrusions beyond the plane of the belt in the opposite direction; means holding vthe strand extremities in theirrrolled-up condition', l and clamping means engaging the holding means of both belt 'ends and preventing relative movement between the holding means of the respective belt ends'.`

2.*VIn a belt having a continuous Vbase` and a cover, a reinforced belt fend comprising a portion of an end of saidVV base rolled` back upon itself to forinva protrusion in one direction beyond said' cover, another portion of said end of said base rolled back upon itself to form a protrusion in the opposite direction beyond said cover, and a block of rubber or like material fused to said cover, embedding both of said rolled-back portions, and projecting oppositely beyond said cover.

3. In a belt having a b-ase, comprising a plurality `of continuous strands, and a clover, a reiniorced belt end comprising end portions of certain of said strands rolled back upon themselves to form protrusions in one direction beyond said cover, corresponding end portions of others of said Strands rolled back upon themselves to form protrusions in the opposite direction beyond said cover, andlablockof rubber or like material fused to said cover, embedding all of said rolled-back portions, and projecting oppositely beyond said cover.l

(l. Injavbelt having a base, comprising a plurality of continuous strands, and a cover, a reinforced belt end comprising end portions ofralt'ernate ones of saidstrands rolled back upon thernselves to form protrusions respectively in opposite directions beyond said cover, and a block of rub# ber or like material fused to'said cover. eiib'd'-v ding all of said rolled-back portions, and pro'- jecting cppositely beyond said cover.

Images