US1022226A - Cable-hanger. - Google Patents

Description

J. DAVIS.

CABLE HANGER.

1121101111011 FILED APR. 11, 1911.

1,022,226. Patented Apr. 2, 1912.

' 1m JUBgE Q 1 (Q i UNITED STATES PATENT OFFICE.

JOHN DAVIS, OF AURORA, ILLINOIS.

CABLE-HANGER.

To all whom it may concern:

Be it known that I, JOHN DAVIS, a citizen of the United States, and resident of Aurora, county of Kane, and State of Illinois, have invented certain new and useful Improvements in Cable-Hangers, of which the following is a specification.

The present invention relates to cable hangers, particularly useful in supporting aerial cables upon span wires and the like, and the principal object of the invention is to provide a simple device which can be readily manufactured and employed.

In carrying out my invention, I construct the hanger out of a single blank of sheet metal; provide a central loop for closely engaging the cable and bend the extended ends into hooks which are arranged to interlock so that the hanger can be clamped in position upon the cable before being attached to the span wire; and so construct the parts that the act of placing the hanger upon its support will not decrease, but will instead increase, the grip of the hanger upon the cable, and so that when once in place, it cannot be readily pulled oil. the support.

The details of the device will be best understood from a consideration of the following description taken in connection with the accompanying drawing, and the scope of the invention will be particularly pointed out in the appended claims.

In the drawing, Figure 1 is a plan view of the blank from which the preferred form of my invention is constructed; Fig. 2 is an end elevation of the preferred form of the hanger with its hooks separated and intel-locked; Fig.7 3 is a similar View showing the closer engagement of the hooks brought about upon the placing of the hanger upon its span wire; Fig. 1 is a side elevation of the hanger with the outer hook cut away so as to illustrate more clearly the inner hook and the opening through which it passes; and Fig. 5 is a view similar to Fig. 2 of a modified form of the invention.

Throughout these figures, like characters refer to like parts.

Referring to the drawing in detail, A designates the blank generally, from which the hanger is constructed. This blank is bent up so as to form a central loop 10 of a cliameter suited to the size of the cable upon which the hanger is to be used. The ex tended ends of the blank are bent up so as Specification of Letters Patent.

Application filed April 17, 1911.

Patented Apr. 2, 1912.

Serial No. 621,602.

to form an inner hook 11 and an outer hook 12. These hooks are of similar configuration and have substantially the same degree of curvature at the bends 13, 141-. l'Vhen the blank A is formed, it has a U-shaped slot 15 punched out of it. This provides a tongue 16 which may be bent over the free end of the outer hook 12 to more firmly lock the parts together when the hanger is in po sition upon the span wire 1'7, as illustrated in Fig. 3. The U-shaped slot 15 also provides a rectangular opening 18 in the shank of the outer hook 12. This opening cooperates with the end of the inner hook 11 which is contracted in width, as shown at the righthand of Fig. 1 and in Fig. 1. The size of the opening 18 is such as to allow the contracted end of the hook 11 to pass through it, and the parts are all so related that the upper edge of the opening 18 is slightly below the upper face of the bond 13 of the hook 11, so that when the hook is moved from the dotted line position of Fig. 2 to its full line position, the bend 13, under the resiliency of the material, is snapped into the position illustrated in full lines. In this way, the hooks 11 and 12 may be locked together when the hanger is applied to the cable. As illustrated in Fig. 2, it will be noticed that when in this position, the hooks 11 and 12 are not in as close engagement as in Fig. 3, where the parts are shown in position upon the span wire 17.

By constructing the parts so that they will occupy the position of Fig. 2 when clamped upon the cable and before being placed upon the span wire 17 the latter act, in bringing the hooks 11 and 12 into closer engagement, increases the grip of the hanger upon the cable. In addition, it will be noticed that the hooks 11 and 12 are so shaped that when the hanger is slipped over the span wire, the outer ends of the hooks will be forced outward away -from their shanks and will then return to their normal position when the span wire is in place. This of itself will prevent the hanger from being readily detached from the span wire. The resiliency of the hooks 11v and 12 will always have to be overcome in removing the hanger. In the form of the invention illustrated in Fig. 5, this shaping of the hooks l1 and 12 is alone relied upon to hold the hanger from ready detachment from the span wire. In the other figures, however, the locking tongue 16, being bent over the end of the tongue 12 after the parts are in position, still further adds to the difliculty of removing the hanger from the span wire and also increases the grip of the hanger upon the span wire. This, it is believed, is of considerable importance where the hangers are in use for years in the open air, as is the practice with such devices. It will be noted that the hook 11 near its bend 13 is provided with an off-set 19 so as to allow the hooks 11 and 12 to come into closer engagement.

From what has been said heretofore, it will be seen that in operation the hooks of the hanger are normally in the dotted line position of .Fig. 2, and when in this position the hanger may be readily slipped over the cable so as to bring it into the loop 10. Then the hook 11 may be moved from its dotted line position to its full line position, the bend 13 passing under the upper limiting edge of the opening 18 and snapping into position, thereby locking the hanger upon the cable. The hooks 11 and 12 may then be slipped over the span wire or like support, and when this is done, the grip upon the cable is still further increased by the hooks 11 and 12 coming into closer engagement. In the form of the invention illustrated in Fig. 5, this is all that is necessary to apply the device. here the additional locking tongue 16 of the other figures is employed, however, such tongue must be bent up into the position illustrated in Fig. 3 in order to be utilized. This act, as be fore pointed out, more firmly locks the parts together and also increases the grip of the hanger upon the span wire.

In carrying out my invention, it will be apparent that certain alterations and changes may be made without departing from the spirit of the invention, but I aim to cover such alterations and changes by the terms of the appended claims.

WVhat I claim as new and desire to secure by Letters Patent of the United States is:

1. An integralv cable hanger consisting of a band of metal bent at its center into an inclosing loop for closely engaging the cable and having its ends bent into nesting inner and outer hooks, the outer hook having an opening in its shank and the inner hook having a contracted end adapted to pass through said opening to bring said hooks into nesting relation.

2. An integral cable hanger consisting of a band of metal bent at its center into an inclosing loop for closely engaging the cable and having its extended ends ,bent into hooks, the one passing through an opening in the other and adapted to nest with it, and a tongue extending from one end of said opening and adapted to be bent over one of said hooks to lock the parts.

3. An integral cable hanger consisting of a band of metal bent at its center into an inclosing loop for closely engaging the cable and having its extended ends bent back upon themselves to form hooks to engage the support, said hooks having at their bends substantially the same radius of curvature and one of said hooks having an elongated opening between its bend and said loop and the other of said hooks being narrowed from the corresponding point in its length outward to its end, whereby it may be passed through said opening and nest with the other hook and the two hooks thereby locked together.

4. An integral cable hanger consisting of a band of metal bent at its center into an inclosing loop for closely engaging the cable and having its extended ends bent back upon themselves to form hooks to engage the support, said hooks having at their bends substantially the same radius of curvature and one of said hooks having an elongated opening between its bend and said loop and the other of said hooks being narrowed from the corresponding point in its length outward to its end, whereby it may be passed through said opening and nest with the other hook and the two hooks thereby locked together, and a tongue extending from one end of said opening and adapted to be bent over one of said hooks to further lock the parts.

5. An integral cable hanger consisting of a band of metal bent at its center into an inclosing loop for closely engaging the cable and having its extended ends formed into interlocking hooks, the bend in one hook extending through an opening in the other and fitting snugly within the bend in the other to lock the parts when in nested po sition.

6. An integral cable hanger consisting of a band of metal bent at its center into an inclosing loop for closely engaging the cable and having its extended ends formed into interlocking nesting hooks, and a tongue located on one hook and adapted to be bent over the other after the parts are in position, to additionally lock them.

In witness whereof, I hereunto subscribe my name this 14th day of April, 1911.

JOHN DAVIS. Vitnesses CAROLYN VEBER, ISABELLA l L FERGUSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. G.

Images