US1956526A - Insulated support for electric cables - Google Patents

Description

April 24, 1934.

.1. ELLMANN I INSULATED SUPPORT FOER ELECTRIC CABLES Filed April 29, 1932 device.

Patented Apr. 24, 1 934 U ITED STATES I INSULATED SUPPORT FOR. memo 01m ns I John 1. Ellmann, Washington, D. 0., assignor to Ellmann Inc., W

ashlngton, D. C.

Application April 29, 1932, Serial No. 808,279 g 2 Claims. (01. 173-314) This invention relates to means for suspending an electric current conducting cable from a messenger cable or other support. I

One of the objects is to provide a simple article of this character that can be inexpensively manufactured, is readily applied both to the conducting and supporting cables with ease and expedition, and without the necessity of the employment of tools, thus making it particularly handy for workmen.v

A further and important object is to provide a structure that is adapted to be easily opened for the admission of thecable without danger of. the parts becoming detached, and when in position and supporting a cable, is effectively locked against dismemberment and disengagement from its support.

The preferred embodiment of the invention is illustrated in the accompanying drawing, wherein:

Figure 1 is a side elevation of a portion of a conducting cable and messenger cable with the former suspended from the latter by the new device.

Figure 2 is an end elevation of the suspending Figures 3 and 4 are cross sectional views respectively on the lines 33 and 4-4 of Figure 2.

In the embodiment disclosed, an insulator is provided made up of duplicate sections 6, which are generally semi-circular in form. Each is provided with an internal passageway '7 that together produce an opening for the passage of the cable, which opening may be of cross sectional area, conforming to the shape of the cable. On one side of the passageway 7 of each section there isformed a socket 8, and on the other side the section is, provided with an outstanding lug 9. The peripheryv of the insulator is provided with a groove 10, the main portions of which are outwardly restricted, or in other words, these portions are of dovetail formation in cross section, as will be clear by reference to Figure 3.

A suspending member. is provided, which is preferably formed of a single piece of metal and includes a ring portion 11 that is of dovetail form in cross section, and is engaged in the groove 10. Obviously this formation causes the ring to have an interlocking engagement with the secwhich are divergently disposed, providing between them. a throat 14. Each of the arms 13 terminates in a-hook 15 that is turned outwardly away from the other arm and downwardly.

As will be clear'by reference to Figure 2 the Joints 16 between the insulator sections are vertically disposed so that the upper joint lies 'in' a plane between the arms 12-43 and below the downwardly tapered throat 14. A portion of a current-conducting cable is shown at 17, and an overhanging messenger or supporting cable is shown at 18.

In applying the device, it will be evident that if the current-conducting cable is passed downwardly through the throat 14, it will spread apart 7 the arr'ns 12-13 and will open the upper Joint 16 between the insulating sections. In other words, by spreading the arms sufiiciently apart, the cable 1'7 can be passed through the joint 16 and into the opening '7. The insulator sections cannot fall out of the ring because of their interlocking mountingv thereon. When the cable 17 is in position, it is only necessary to press the arms 13 towards each other and bring,the hooks over the support or messenger cable 18, whereupon the device will be effectively locked in position and the insulator sections held closed around the cable.

Inasmuch as the two sections 6 of the insulator are duplicates, but one form is necessary for both. There are thus only two distinctively different parts required in production, to wit, the insulator and the suspending member. As shown the dovetail form of the latter extends only around the portion engaged with the insulator sections. The remaining portion forming the arms 12-13 and the hooks 15 are preferably smaller in cross sectional area and may be square as will be clear by reference to Figure 4.

From the foregoing, it is thought that the construction, operation and many advantages of the herein described invention will be apparent to those skilled in the art without further description, and it will be understood that various changes in the size, shape, proportion and minor details of construction may be resorted to without departing from the spirit or sacrificing any ofthe advantages of the invention.

What I claim, is:

I A cable hanger for overhead support from a messenger cable or the like comprising a suspending member having a lower ring-like por-' tion with upstanding arms that can be relatively moved apart to .permit the entrance of a cable tdibe suspend said-arms having means at no their upper ends for engagement over a messenger cable or the like and suspending the hanger therefrom, and an insulator member located in and supported by the ring-like portion, said insulator comprising sections defining a passageway for the cable to be suspended by the hanger and comprising separable sections, each associ-- ated with one of the arms and having a joint between them that extends upwardly between the arms and opens when the arms are separated to permit the entrance therethrough to the passageway of a cable passed between the arms, said arms when suspended from the messenger cable being held against separation and thereby holding the insulator members together about the cable located in the passageway.

2. A cable hanger for overhead support from a messenger cable or the like comprising a suspending member having a lower ring-like'portion with upstanding arms that can be relatively moved to separated positions to permit the entrance of a cable to be suspended, said arms having lower portions upwardly 'convergently disposed and their upper portions upwardly divergently disposed and terminating in outwardly turned hooks for opposite engagement over a messenger cable or the like and suspending the hanger therefrom, and an insulator member located in and supported by the ring-like portion below said convergently disposed portions of the side arms, said insulator comprising sections defining a passageway for the cable to be suspended by the hanger and comprising separable sections, each associated with one of the arms and having a joint between them that extends upwardly between the arms and opens when the arms are separated to permit the entrance therethrough to the passageway of a cable passed between the arms, said arms when hooked over a messenger cable clamping the insulator sections together about a cable in the passageway and holding the upwardly extending joint between said sections against opening.

JOHN I. ELLMANN.

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