US2107594A - Pole bracket and insulator - Google Patents

Description

ZJQ'LSSM M a Attorney5 F. BECKNESE ET AND INSULA'IOR Filed March 3, 1936 79412;? Bic/r216;

POLE BRACK Feb, 8, 19380 Ji llilll 99999 .l

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Patented Feb. 8, 1938 UNITED STATES PATENT OFFICE 1 Claim.

This invention is a bracket or clamp adapted to be applied to a telegraph pole for supporting telegraph wires or other wires of high conductivity and the object of the invention is to provide a bracket or clamp of this character which when used on telegraph poles will serve to so support the conductor as in the event the same becomes heavy due to the accumulation of ice, sleet and the like thereon, the conductor wire by reason of the added weight will readily free itself of the clamp or bracket and drop to the ground for the entire length of the conductor, thereby preventing looping of the wire at intervals as now generally occurs because of the weight added thereto by the accumulation above mentioned.

The invention together with its objects and advantages will be best understood from a study of the following description taken in connection with the accompanying drawing wherein:

Figure l is a perspective view illustrating the application of the invention.

Figure 2 is a longitudinal sectional view through one form of my improved clamp or bracket, and

Figure 3 is a view similar to Figure 2 illustrating a slightly modified form of clamp or bracket.

Figure 4 is a detail elevational view illustrating the application of the invention to the curved cross arm of a telegraph pole.

Referring to the drawing by reference numerals it will be seen that in both forms thereof the improved clamp or bracket indicated generally by the reference numeral 5 comprises a pair of cornplemental slightly longitudinally curved or bowed clamping jaws 6, I respectively preferably formed a of spring metal or other suitable material.

The jaw 6 is formed from a relatively elongated strip of the desired material bent and shaped to provide a body plate 4 from one end of which extends the jaw 6 and from the other end of which projects an upstanding attaching flange 8 through the medium of which and suitable fastening means 9 the bracket is secured to the telegraph pole or post III.

The other jaw I is formed from a shorter length of the desired material which latter is bent so as to provide a body plate from one end of which the jaw I extends in operative position to the jaw 6. The plate II rests on the plate 4 and is secured to the latter through the medium of a suitable fastening element or elements I2.

Thus it will be seen that when suitably applied to the post ID the jaws 6 and I of the bracket will be spaced laterally therefrom to accommodate therebetween the conductor wire I3.

At the free end thereof the jaws I are provided with heads I4 of insulating material. These heads I4 are applied to the jaws in any suitable manner preferably by having end portions of the jaws embedded within the material of the head as suggested for example in the form of the invention shown in Figures 1 and 2, although it will be understood, and as shown in Figure 3 the free ends of the jaws 5' and I may be applied to the outer faces of the heads designated in said figure by the reference numeral Ma and secured to said heads by rivets or the like I 5.

In the form of the invention shown in Figures 1 and 2 the heads I4 have upper beveled ends I6 which when the jaws are in closed position form therebetween a groove for receiving wire I3 as clearly shown in Figure 2. Also, the heads I 4 taper longitudinally toward their free ends and have beveled confronting faces II which form therebetween a guide channel which facilitates the introduction of the wire I3 between the heads of the jaws for engaging the wire or cable I3 with the clamp, as is thought to be apparent. In the form of the invention shown in Figure 3 the heads Ma at their free ends have beveled confronting faces I'Ia, to facilitate the introduction of the wire or conductor I3 therebetween, and at their inner ends the head Ma are blunt or squared as shown. Adjacent said inner ends the heads Ida have the meeting or confronting faces thereof complementarily grooved as at I8 to positively receive therebetween the wire I3 as clearly shown.

It will be apparent that with either construction, and in the event the wire I3 becomes excessively heavy due to the accumulation of ice, sleet or the like thereon the weight of the wire will tend to cause the latter to move downwardly between the heads of the jaws, the jaws readily spreading apart to permit the wire or conductor I3 to pass downwardly therebetween and drop to the ground.

From the above it will be seen that I have pro- Vided an efiicient clamp or bracket for supporting telegraph wires or analogous conductors from poles in such a manner as will preclude the breaking or snapping of the wires when placed under stress due to accumulations of snow, sleet or the like thereon.

In Figure 4 is illustrated the application of the clamp or bracket to the curved cross arm of a telegraph pole, and in applying either type of clamp it will be apparent that all that will be necessary is to twist the clamp slightly where the parts 4 and I I of the complemental members of the clamp are riveted together, and as will be believed to be clear to those skilled in the art.

Having thus described the invention, what is claimed as new is:

Means for suspending and insulating a conductor from a telegraph pole consisting of a pair of strap members having angularly extending upper ends secured to each other and provided at said upper ends with means for attaching the strap members in suspended spaced parallel relation to a pole, said strap members having free curved ends forming complemental jaws, heads of insulating material on the free ends of said jaws, said heads having inner beveled ends providing a substantially V-shaped groove therebetween to receive a conductor or line wire.

FRANK BICKNESE.

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