US1682737A - Cable hanger - Google Patents

Description

Sept. 4, 1928..

J. BLACKBURN CABLE HANGER Filed 001;. 1'7, 1925 O 7 v rroRA/ff Patented Sept. 4, 1928.

[ UNITED- STA ,msrnn BLACKBURN, onwnBSrER. Gnoyns, nrsso'nni.

cAnLE HANGER.

Application flled o'etober 17, 1925. S .eria1-No. 62,980.

My invention relates to improvements in cable hangers, and has for its primary object a cable hanger of the singlering type, which is provided with a V-shaped cable seat so as to support the cable on two sides and prevent its rolling in the seat. I have discovered that where the circular type of cable seat is used, there is atendency for the cable to 'roll backward and forward in the seat and thus in a short time wear off both the fabric covering and the lead covering with which i the cable is surrounded thereby shorting some of the electric conductors in the cable. By the peculiar construction of my cable support, all rolling tendency of the cable is prevented and consequently the wearing through of the outer coverings of the cable y y is prevented.

A further hanger in which both hooks,

which tendency to grip the wire and prevent long by means of tudinal movement of the hanger 1n either d1- reetion. 1 1 "y 2 A still further ob ect is to construct a cable hanger embodynig the aforesaid "teaattached to a tures, which can be readily messenger wire by hand and wlthout the use of any tools whatsoever.

In the drawings 0 Fig. 1 is a side elevatlon of my lmproved hanger showing the same apphed to a messenger wire;

Fig. 2 is a top plan new of Fig. 1;

Fig. 3 is an end view looking 1n the direction of thearrow 3 in Fig. 2; and

Fig. a is an end view looking in the direction of the arrow 4 in Fig. 2.

In the construction of my devlce, I em ploy a strand of wire, which is preferably flat although this feature is not essential. On one end of this wire is formed a hook 5. The wire adjacent thehook 5 is provided with a portion 6, which is designed toentend underneath the messenger w1re 7 d1- agonally to the longitudinal axis of the messenger. The portion 6 has extending therefrom an arm 8, which is provided with a bend as at 9. From the bend 9 is thestra1ght portion 10, which is inclined downwardly and toward the vertical plane of the messenger. At the lower portion of the arm or 1nclined part 10 is a relatively sharp bend 11 from which extends upwardly and outwardly an inclined straight portion 12; the portions 10, 11 and 12 forming substantially a V.

object is to construct a cable it is attachedto the'cable, will have a Thisis clearly illustrated inFigsp3 and a.

At the end of the inclined portion 12 is a curved portion 18, which is provided with an upwardly and inwardly extending arm 14. The upper part of this arm is bent as at 15 so thatit will pass underneath the messenger wire but at some distance below the same. This portion 15 is again bent as at 16 so that a vertical portion 17 will be formed. The vertical portion 17 terminates in a hook 18, which hook is at an angleto the longitudinal axis of the messenger wire and is. preferably Inclined toward the hook 5 as illustrated in Fig. 2. The hook is so arranged that when it is in position on the messenger wire, the edges 19 and 20 will have a tendency to fit in between thestrandsof the messengerwire and thus prevent creepmg. I The hook 5 and the diagonal portion also have thesame tendency, and by reason of this the hanger firmlygrips the messenger.

wire and due to the tension and torsionset up n the variouslporhons 0f the hanger duringits application, all creeping tendency is eliminated. It isto be understood, of 7 course, that my device 1s madeof wire which hasre'siliency so thatwhen the various parts are sprung out of their normal position, as willbe described herein, the inherent resiliency of the material will tend to cause it to assume its original shape and thus enhance the gripping action.

My device is applied as follows:

The hook 5 is first placed over the messenger with the hook 18 free- The hook 18 is then brought beneath the messenger wire, thus bringing the portion 6 underneath the messenger wire. In this position the hook 18 will be quite a distance below the messenger. The ring is then lifted in such a mannor as to bring the hook 18 above the messenger wire after whlch the ring is so swung that the hook 18 will pass over the messenger.

In doing this the arm 6 will be placed under tension. In other words, there will be a tendency to bend the arm downward. There will also be a certain amount of tension set 1 up in the balance of the ring and, upon removing the hand from the ring, this will have a tendency to draw the hook 18 down tight over the wire, while at the same time the tension set up in the arm or portion 6 will have a tendency to force the hook 5 down tightly on the wire. The tension thus exerted on the two hooks effectually prevents any creeping on the messenger, the hook 5 prev the circular cable'seat only venting creepingin one direction, while by reason of the hook 18 being canted relative to the longitudinal axis of the messenger wire 7 will prevent creeping in the op osite direction as there will be a'tende'ncy of to twist and bite into the messenger wire tighter when any longitudinal movement is attempted, especially when this longitudinal movement is applied to the cable seat as wouldbe the tendency when a cable is pulled through the hanger. r a

It ,willa'lso benoted fromm construction thatthe hooks 5 and 18 are wi ely separated. This not only gives. stability to the hanger andohviates tipping tendency but also permits the hanger to be applied over an-existing cable. 7 r v i a It willbefurther noted that in applying my device, no scissor-action is; present but that a leverage principle is employedin applying. the hanger in which the messenger wire playsan important part as practically allt-he leverage exerted in applying the hanger is exerted upon the messenger, and is not dependent at all upon the grip'ofthe lineman applying the hanger.

It will also be observedfrom F igs. 3 and.

4 in which the cableis shown in dotted lines that my cable hanger provides atwo-point supportfor thecable. This is an important feature and prevents the rolling of the cable or slidinglaterally asaioresaid, whereas with a one-point su port was. provided. a This support was on on. the lowermost, point' of the cable an therefore, the same could slide laterally whereas the two-point support provided by these books my improved hanger is on each side of the cable and at some distance above its lowermost oint and, therefore, all possibility of .the on Is rolling or. side sliding is absolutely prevented, because in orderto slide, however slightly, it will be necessary for the cable to elevate itself considerably. This, however, is

not possible on account of the great Weight of the cable,

and also the tendency of the cable to wedge itself in the V support on account of spring wire having a hook on one end, a

portionintegrally formed with said hook and extending under and contacting with the underneath surface of a messenger wire, an

arm integral with said portion, a V shaped cable seat formed integral with said arm and.

adapted to contact with and support a cable at one point of eachof two opposite sides of its vertical axis and below its horizontal axis,

so as to prevent any lateral movement therein in said seat, a second arm integral with said seat, said arm diverging from the first mentioned arm and extending in anopposite direction thereto, and a hook integral with said last mentioned arm, said hookarranged a to extenddiagonally across the top of the messengerwire when the hanger isvin positionywhereby creeping of said hanger in either direction is elimlnated.

In testimony whereof I have aflixedmy signature.

. JASPER BLACKBURN.

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