US1789997A

US1789997A - Cable hanger

Info

Publication number: US1789997A
Application number: US228225A
Authority: US
Inventors: Blackburn Jasper
Original assignee: Individual
Current assignee: Individual
Priority date: 1927-10-24
Filing date: 1927-10-24
Publication date: 1931-01-27
Anticipated expiration: 1948-01-27

Description

Jan. 27, 1931. J. BLACKBURN 1,789,997

CABLE HANGER Filed Oct. 24, 1927 Patented Jan; 27, 1931 JASPER BLACKBURN, OF WEBSTER GROVES, MISSOURI CABLE HANGER Application filed Gctocer 24, 1927. Serial No. 228,225.

My invention relates to improvements in cable hangers, and has for its primary ob ect a cable hanger which is provided with a detachable cable seat, the seat being relatively wide so as to present a large bearing surface for the cable and preventany cutting or wearing through of its sheath.

Aiurther object is to construct a cable hanger having a detachable cable seat, which seat is secured to the hanger at both ends and intermediate its ends so that all possibility of tie seat becoming displaced while drawing a cable through the hanger is eliminated.

In the drawings:

Fig. 1 is an end View 01": a cable hanger showing the seat in position and .a cable therein in dotted lines; I

Fig. 2 is a side elevation of the same;

Fig. 3 is a top plan View;

Fi t is a tragmental side view looking in the direction of the arrow in Fig. 3;

Fi 5 is an enlarged cross section talzen on the line 5-5 of Fig. 3;

Fig. 6 is an enlarged tragmental cross section of the lower portion of the seat taken on the line 6-6 of Fig. 4:; and

Fig. 7 is a modified form of cable seat.

In the construction of my device I employ a hanger which provided with a cable supporting section 8. This section may be either arcuate as disclosed in the drawings or may be made V shaped. Integral with the section 8 are an is 9 and 10. The arm 10 is provided with plain hook 11 while the arm 9 is provided with a shew hook 12. hooks are desi ned to be placed over the messenger wire 13 in the usual r anner.

Supported by the section 8 of the hanger is a cable seat 1d. This cable seat is formed of sheet metal, preferably metal with a slight spring. cable seat is preferably given he same contour as the section 8 so that it will he supported thereby throughout its length. Intermediate the ends of the seat 14 the metal is bent downward so as to be doubled These upon itseli thereby forming a tongue 15, This tongue is provided with an opening 16 which is slightly larger than the diameter of the wire forming the hanger. The edges .17 and 18 of the'seat are bent over-downward and rounded illustrated in Figure 5 so that there will be no sharp edges'to cut the covering or sheathing oi the cable. That portion of the turned over part of the seat adjacent the tongue is notchedout as indicated by the numeral 19. This is for the purpose of permitting the edges 17 and l8vto be turned o'er. Thus, it will be seen that the tongue 15 is slightly narrower than the cable seat. The ends of the seat are turned outwardly as indicated by the numerals 20 and The out-turned end 21 is provided with a passageway 22, which passageway is partially closed by a spring tongue 23. This tongue is so arranged that the arm 10 can be snapped. into position. The end 21 is provided with an elongated slot 24; and witl a tongue 25'. This tongue is designed to be bent upwardas indicated by dotted lines in Figure 4 and when the arm 9 of the hanger is placed in the opening 24 the tongue 25 is bent downward thereby preventing any possibility oithe seat becoming detached.

In applying the seat, one of the hooks is first introduced through the opening 16 and the seat slid alongthe arm ace'nt the hook and down onto the portion 18. Then the arms are snapped into the recesses 22 and In this'manner it will be seen that the seat is held at both ends and also intermediate the ends. This is essential on account of the great weight of a cable as l. have found that when drawing a cable through the hangers there was always a tendency to swing the center portion of the seat away from the hanger.

This, not alone damaged the cable consider ably, but at times pulled it entirely clear of the cable supporting portion so that the cable would rest directly on, the hanger, but by supporting the device at both ends and intermediate its ends any possibility of it being pulled oil during the stringing of a cable is eliminated.

In Figure 7 I have shown a modiiied form of construction in which a tongue 26 is used. This tongue is similar to the tongue 15 but is provided with an opening 27 to receive the portion 8 of the hanger and with a slot 28. By this construction the cable seat is placed in a horizontal position relative to the hanger and the portion 8 passed through the slot 28 into the opening 27 when the seat is turned upward into the position illustrated in Figure T, and the ends secured in the usual manner.

It will be understood, of course, that the rings or hangers, which are supplied with these wide cable seats, are only used adjacent the poles because I have discovered that the sway of the cables between the poles causes the cable to twist adjacent the poles and thereby wear through the sheath in a short time, especially where narrow cable hangers are used. By my construction the ordinary cable hanger can be used throughout the job and the lineman need only apply the cable seat to one or two hangers on either side of the pole.

lVhile I have disclosed my device as having a spring tongue on one end and a tongue designed to be bent down on the opposite end, I may construct both ends alike, that is with either the tongue which is to be bent or use the spring tongue without departing from the spirit of my invention.

It is to be understood, of course, that the hanger itself is formed of spring material and the hooks are so arranged that they will exert a grip on the messenger wire so as to prevent longitudinal creeping of the hanger on the messenger wire.

Having fully described my invention, what I claim is 1. In a device of the class described a cable seat comprising a sheet of spring metal having' a perforate downwardly extending tongue formed intermediate its ends and adapted to have a cable hanger pass therethrough, said sheet being bowed upwardly on each side of said tongue, the ends of said sheet being bent outwardly and having slots therein, and means carried by said ends for closing the outer portion of said slots.

2. In a device of the class described a cable seat comprising an arcuate sheet metal memher having its ends out-turned, and its sides clown-turned, passageways formed in said out-turned ends, means integral with said ends for partially closing said passageways, and a downwardly and laterally extending tongue having an opening therethrough integral with said member and intermediate the ends thereof, said opening adapted to receive a cable hanger.

3. In a device of the class described a cable seat comprising an arcuate relatively signature.

JASPER BLACKBURN.