US1798777A - Cross-arm wire clamp - Google Patents

Description

y March 31, 1931. F. J. ANDERSON CROSS ARM WIRE CLAMP Filed Jan. 20, 1930 Patented Mar. 3.1, 1931 'stares FRANKJOHN annnnson, on FORT ponen, IOWA onces-emu wma CLAMP Application led January 1930. Serial No. 422,063.

The object of my invention is to provide a cross arm wire clamp which is simple, durable and comparatively inexpensive to manufacture.

More particularly it is my ob] ect to provide a cross arm wire clamp comprising a body member adapted to be secured to a cross arm and clamp means on the body member to re tain a pair of wires extending in opposite d1- 10 rections from the cross arm, means being provided on the body member to receive an end ofv A further object is to provide a wire clamp with retaining means whereby wires `may be clamped and easily spliced adjacent across arm by a lineman seated on the arm without reaching way out to the endk of the tackle block or wire stretcher when splicing wires together. p

Another object is to providea toggle lever and link means for clamping the two parts of the wire clamp together around a cross arm.

lVith these and other objects in view my in vention consists in the construction, arrangement and combination of the various parts of my device, whereby the objects contemplated are attained as hereinafter more fully set forth, pointed out in my claims, and illustrated in the accompanying drawings in which: Y v l Figure 1 is a perspective arm wire clamp.

view of my cross trating it clamped around a cross arm on a pole and showing a block and tackle connected with the cross arm wire clamp for pulling a wire taut.

Figure 3 is an end elevation of the wire Figure 2 is a side elevation of the same illus-4 clainp as viewedfrom the right hand side of Figure 2.

Figure l is a cross sectional View on the line 4 4 of Figure 1. Y On the" accompanying drawings I have used the reference character 10 to indicate an electric,telephone, or other-type of pole toV which a cross arm 12 is secured. An insulator 1li is illustrated in mounted position on the cross arm 12.

My cross arm wire clamp is referred to generallyby the reference character A and comprises a U shaped portion 16 and a handle portion 18 hinged thereto by'a hinge connection 20. rlhe U shaped portion 16 is adaptedv to lit under the cross arm 12, `and the handle portion `18 is provided withan upward bulge 22 adapted to fit over the'top ofthel crossv arm 12. l

The handle portion 18 .is adapted to be clamped to the U shaped portion 16 by av toggle lever`24c and link 26. One end of the link` 26 is pivoted to the toggle lever and the other is pivoted to a lug 28 on the under side of vthe handle 18. The upper end of the` toggle lever 24: is adapted to coact with a hook portion 8O on the U shaped member 16 asbest shown in' Figure 2 of the drawings. he toggle lever is held in the'position illustrated due to the link 26 passing over center with respect to the pivotal engagement bed tween the upper end of the toggle lever and the linl:` 30 when the toggle lever is moved to clampedposition.

Wire retaining means is providedon the top of the handle portion 18 and consists of a wedge retainer 32 secured' tothe handle portion 18. The shape of the wedge container is best illustrated in Figure L of the drawings. A pair 'of wedge members 34 is mounted in the wedge retainer 32 and are oppositely inclined. Projections 36 on the small ends of the wedges prevent their removal from the' .wedge retainer 32. The under surfaces o-f the wedges 34 are preferably lcorrugated or serrated. Beneath the wedges 34: the top of the handle portion 18 may be built up as indicated at 38. K

-An eye L10 is formed on the U shaped portion 16 of the cross arm wire clamp A and an eye 42 is formed in the outer end of the handle portion 18 as clearly illustrated in Figure l. The eyes 40 and 42 are adapted to receive one end of a wire pulling mechanism 44 which may be either a block and tackle structure or a wire stretcher. The other end of the wire pulling mechanism 44 is adapted to be clamped to the wire 4G as illustrated for instance in Fig. 2 so that such wire can be pulled taut and then clamped by one of the wedges 34. The wire. pulling mechanism 34 can then be shifted to the other eye and a second wire 48 pulled taut and clamped. The wires 46 and 4S can now be easily spliced adjacent the cross arm l2 by a line-man sitting on the cross arm.

The wire pulling mechanism can also be used for pulling a wire taut which is to be secured to the insulator 14. Instead of using a wirepulling mechanism the wire can be eX- tended between the portions 38 and 34 and down tothe ground from where it can be vpulled taut by the line-man and when released the wedge will tighten on the wire and clamp it relative to the cross arm wire clamp.

Some changes may be made in the construction and arrangement of the parts of my device without departing from therreal spirit and purpose of my invention, and it is my intention to cover by my claims, any modiiied forms of structure or use vof -mechanical equivalents, which Vmay Y be reasonably ineluded within their scope.

I claim as my invention IIl. A cross arm wire clamp comprising a body member adapted to be secured t0 a cross arm, means on said body member to receive one end of a wire pulling mechanism and clamp means on said body member to retain'a wire after being pulled taut by said mechanism.

2. A cross arm wire clamp comprising a two part body member, toggle lever and link means for clamping the two parts of said member together around a cross arm and clamp means on one of said parts to receive and retain a wire.

3. A cross arm Wire clamp comprising a two part body member, means on one of said parts to receive one end of a wire pulling mechanism, means for clamping the two parts of said member together around a cross arm and clamp means on one of said arts to receive and retain a wire after eing pulled taut by 4said mechanism.

4. A cross arm wire clamp comprising a two part body member, means on one of said parts 'to receive one end of a wire pulling mechanism, means for clamping the two parts of said member together around across arm and clamp means on one of said parts to receive and retain a pair of wires extending in opposite directions from said cross arms after said wires have been drawn taut by 'said mechanism.

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