US2039501A - Trunnion clamp for conductors - Google Patents

Description

May 5, 1936. J. J. TAYLOR TRUNNION CLAMP FOR CONDUCTORS Filed May 29, 1935 Patented May 5, 1936 UNITED STATES PATENT OFFICE The Ohio Brass Company,

corporation of Ohio Mansfield, Ohio, a

Application May 29, 1935, Serial No. 24,006

2 Claims.

This invention relates to supports for electrical conductors and has for one of its objects the provision of a trunnion type clamp for conductors which is economical to manufacture and efficient in use and in which the trunnion may be formed of a different material from the body of the clamp.

A further object of the invention is to provide a. device of the class named which shall be of improved construction and operation.

Other objects and advantages will appear from the following description.

The invention is exemplified by the combination and arrangement of parts shown in the accompanying drawing and described in the following specification, and it is more particularly pointed out in the appended claims.

In the drawing:

Fig. 1 is an elevation with parts in section showing one embodiment of the present invention.

Fig. 2 is a transverse section on line 22 of Fig. 1.

Fig. 3 is a fragmentary section on line 33 of Fig. 2.

Referring to the drawing, the numeral in designates a seat member for supporting an electrical conductor, the member being channel shaped in cross section and curved downwardly at its ends to permit the cable to leave the seat on a line tangent to the curve in the seat. The cable is held in the seat by a keeper piece ll clamped against the cable by J-bolts l2 and I3. The side walls of the seat are extended outwardly adjacent the center of the clamp, providing pockets l4 and 15 in Which the J-bolts are located. Extending up from the floor of these pockets and cast integral with the seat H] are ears [6 and I1 disposed one at each side of the cable seat. The ears I6 and I! and the side walls of the pockets l4 and [5 are provided with alined openings for receiving trunnion pins l8 and I9. Each of the pins l8 and I9 is provided with a reduced middle 20, which reduced portions engage openings 2| in supporting links 22. The openings 2| are of sufiicient size to permit the flanges on the ends of the pintle pins l8 and I9 to pass therethrough.

In assembling the device, the links 22 are inserted in the openings between the walls of the pockets l4 and I5 and the respective ears I6 and I1 and move downwardly until the openings 2| aline with the openings in the side walls and ears. The pintle pins 18 and H! are then placed in position and the links 22 raised until the reduced middle portions 20 of the pins engage the lower peripheries of the openings 2|. Cotter pins 23 are then secured in perforations in the links 22 above the upper edges of the ears l6 and I! and the side walls of the pockets. This arrangement will lock the pintle pins I8 and I9 in position with their outer ends substantially flush with the outer faces of the side walls of the pockets.

In a device of this kind, it has been found desirable to make the pintle pin of a strong noncorroding material, such as stainless steel, but because of the high cost of this material and because it is not as easily worked as other materials, it is evidently impractical to form the whole body of the support of stainless steel. With the construction shown and described above, it is possible to make the pintle entirely separate from the other parts of the clamp so that the body of the clamp may be formed of malleable iron or other suitable material while the pintle itself may be formed of stainless steel. The arrangement described above makes it possible to assemble the device thus formed so that the pintle, although a separate piece, is securely locked in place and performs its function as well or better than if it were formed integral with the other parts.

I claim:

1. A conductor support comprising a pair of members supported one from the other, one of said members having spaced portions, the other of said members having a tongue extending between said spaced portions, said spaced portions and tongue having circular openings therethrough all of substantially the same diameter and adapted to be moved into alinement, a pintle pin extending through said openings and having cylindrical end portions of approximately the same diameter as said circular openings but movable freely through said openings and having a reduced middle portion for engaging the opening in said tongue to permit said members to be shifted to bring said openings out of exact alinement for locking said pin in said openings and a stop for holding said members in their shifted position with said openings sufficiently offset to retain said pin in place.

2. A conductor support comprising a seat member having pockets at opposite sides thereof, links extending into said pockets, said links and the Walls of said pockets having circular openings all of substantially the same diameter arranged to be moved into registration with one another, pintle pins for engaging said openings to connect said links with said seat member, said pintle pins having cylindrical end portions of approximately the same diameter as the circular openings but movable freely through said openings and having reduced middle portions to permit said links to be shifted transversely to the axis of the said opening after the pintle pins are in place to lock said pintle pins in position, and stops for locking said links in their shifted position relative to said pockets with the openings in said links offset relative to the openings in the walls of said pockets to lock said pins in said openings.

JOHN J. TAYLOR.

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