US1007432A - Cable-carrier. - Google Patents

Description

J. DAVIS.

CABLE CARRIER.

APPLIUATION FILED JULY 29, 1910.

Patented Oct. 31, 1911.

so wire and held with it.

UNITE TATE PATENT @FFIQ.

JOHN DAVIS, OF AURORA, ILLINOIS.

CABLE-CARRIER.

12) 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, State of Illinois, have invented certain new and useful Improvements in Cable-Carriers, of which the following is a specification.

The present invention relates tocablecarriers such as are employed in stringing in aerial and other cables.

The object of the invention is to provide a carrier which will be simple in construction and economical to manufacture, while at the same time bringing about, by reason of its use, a considerable reduction in the is suspended from it by means of hangers which are positioned at regular intervals. It has been the practice heretofore in string ing such cable to suspend hangers or carriers from the messenger wire and to pull the cable through these hangers or carriers.

In carrying out my invention, I have pro vided a carrier which may be clamped to the cable and will move along with it instead of being clamped to the messenger In this way, the carriers may be attached to the cable at regular intervals as it leaves the reel on which it is wound and then properly set upon the messenger wire over which they will travel "as the cable is pulled.

The full character and nature of the invention will be best understood upon reference to the following detailed 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 side elevation of the preferred form of my invention,

viewed in position upon the messenger wire and clamped to the cable; Fig. 2 is a view at right angles to that of Fig. 1, parts being shown in section; Fig. 3 is a fragmentary sectional view similar to Fig. 2, illustrating an the position of the parts when a cable of smaller size is employed; and Figs. 4 and 5 are a side elevation and central vertical section, respectively, of the third clamping member employed in the device. Throughout these figures, like characters refer to like parts.

Specification of Letters Patent.

Application filed July 29, 1910.

Patented'flct. 31, 1911.

Serial No. 574,536.

Referring to the drawing in detail, it will be observed that the carrier in the preferred form of construction consists of a long strip 10 of suitable resilient material such as steel, Lent back upon itself at its upper end so as to form a bearing for the grooved wheel 11, which rides upon the messenger wire 12. At its lower end, the strip 10 is similarly bent back upon itself so as to form two clamping members 13, 14. At the lower end of the device, the strip is given a relatively large turn at 15, so as to add to the resiliency of the members l3, 14. These latter members, together with the third clamping member 16, are adapted to engage the cable 17 and to clamp it securely in position. A clasp 1S, pivoted at 19 to the upper end of the member 14, is provided on its under edge with a plurality of teeth 20, which are adapted to engage the member 13 to hold the parts in variously adjusted positions. A slot 21 is provided in the member 13 for the passage of the clasp 18. The clamping members 13, 14, are curved outward slightly so as to form a better seat for the cable 17 or 17. Likewise the upper face of the third clamping member 16 is gouged out so as to more closely engage the cable. The lower portions 22, 23, of the outwardly curved portions of the members 13, 14, provide downwardly converging faces against which the faces 24, 25 of the wedge-shaped portion of the member 16 are adapted to engage.

It will be seen that when the members 13, 14, are a considerable distance apart, as in Fig. 2, these faces 22, 23, allow the member 16 to drop down, while, when the members 13 and 14 are drawn closer together, as in Fig. 3, these faces, cooperating with the faces 24, 25, cause the third clamping member 16 to move upward. It will also be seen that the adjustment of the members 13 and 14 by hand brings about an automatic adjustment of the third clampingmember 16. By reason of this action, the three clamping members 13, 14 and 16 readily adjust themselves according to the size of the cable which they embrace. In order to guide the member 16 in its toand-fro movement, it is provided at its ends with ribs 26, which bear against the edges of the members 13 and 14. In order to prevent the member 16 from dropping too far down, it is provided with a slot 27, through which extends a bolt 28 having a nut 29 secured to its threaded end. This nut is only screwed on the thread a short distance, thereby providing a loose pin and slot connection between the parts and allowing room for the separation of the members 13, 14.

It is obvious that the clamping member 16 might be guided and held in position for actuation by the movement of the clamping members 13 and 1 1 through some other agency than the rib 16 and the bolt 28. This is a detail which may be readily modified without departing from my invention. It will also be apparent that other means might be employed for holding the clamping members 13, 14-, in their dili'erent adjusted positions. It will also be apparent that these clamping members 13 and 14: might be given their resilient action in some other way than illustrated and that it is not necessary that they be all made of one strip such as strip 10. It will also be apparent that the grooved wheel 11, which is to ride upon the messenger wire 1:2, might be replaced by other suitable means. These modifications will readily suggest themselves to one skilled in this art. In view of these possible changes, I therefore do not wish to be limited to the specific matter disclosed, but aim to cover all such alterations and modifications by the terms of the appended claims.

What I claim as new and desire to secure by Letters Patent of the United States is 1. A cable carrier comprising two relatively movable clamping members having converging faces, means for retaining said members, and thereby said faces, in different operative positions, a third clamping member having a wedge-shaped portion embraced between said faces, whereby the adjustment of said first two clamping members automatically adjusts said third. clamping member, and a loose connection for limiting the movement of said third clamping member to maintain it always in position for actuation by said faces.

2. A cable carrier comprising a strip of resilient material bent back upon itself at both ends, at one end so as to form two clamping members and at the other so as to form a bearing, a grooved wheel journaled in said bearing, a clasp for retaining said clamping members in different operative positions against their resilience, a third clamping member having a wedge-shaped portion embraced between converging faces of said clamping members, whereby the adjustment of said two clamping members automatically adjusts said third member, ribs on said third member for guiding it in its to-and-fro movement, and a connecting means for limiting the movement of said third member to maintain it always in position for actuation by the movement of said two clamping members.

In witness whereof, I hereunto sign my name this 25th day of July, 1910.

JOHN DAVIS.

Witnesses:

CAROLYN WEBER, HARRY S. GAITHER.

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

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