US2136546A

US2136546A - Cable outlet

Info

Publication number: US2136546A
Application number: US168584A
Authority: US
Inventors: Gort Godfrey
Original assignee: WESTERN RAILROAD SUPPLY COMPAN
Current assignee: WESTERN RAILROAD SUPPLY Co; WESTERN RAILROAD SUPPLY COMPAN
Priority date: 1937-10-12
Filing date: 1937-10-12
Publication date: 1938-11-15
Anticipated expiration: 1955-11-15

Description

G. GORT CABLE OUTLET Nov. 15, 1938.

Filed 001;. 12, 1937 INVENTOR $9 5; Z

BY A (Z: 293/ ATTORNEY the size of the cable to be used in connection therewith. This construction thus provides a greater and better contact engagement with the bond Wires or cables, it being understood that the spring member is made of a satisfactory currentconducting material such as hard spring copper or a composition thereof. It will also be understood that a plurality of sizes of spring members, having different sizes of loops, may be made, which will be interchangeable on the same fitting to accommodate different sizes of bond wires or cables.

What I claim is:

A parkway cable outlet including a standard, an

insulator fitting over the end of the standard with means for fastening it thereto, and having a hole therein to permit the passage of the parkway cable therethrough, a stud permanently carried by the insulator, a spring member positioned on the insulator around the stud, said spring memher having locp formations on opposite sides of the stud and having its ends forming seats carried directly by the insulator, and clamping means on the stud for" causing the loop formations to contract and grip conductors inserted within said loops.

GODFREY GORT.

Patented Nov. 15, 1938 UNITED STATES PATENT OFFICE CABLE OUTLET Application October 12, 1937, Serial No. 168,584

1 Claim.

This invention relates to cable outlets and is especially useful in connection with railway signal track circuits and the like. In such circuits the cables are carried in pipes or the equivalent and connections have to be made to these cables by means of some outlet which is many times referred to as a bootleg.

It is the object of the invention to be hereinafter described to provide a simplified and improved type of outlet for a parkway cable such as that previously referred to.

My invention is set forth in the annexed drawing, wherein:

Figure 1 is a view, part in section and part in elevation, showing one form of my improved outlet fitting.

Figure 2 is a section on the line 2-2 of Fig- Lue 1.

Figure 3 is a view looking down at the top of Figure 2, with the cable or conductor clamping means removed from the clamping stud, but with the base clamp of Figure 2 in position.

Figure 4 is a sectional view on the line 4--4 of Figure 3.

Figure 5 is a fragmentary sectional view of a modified form of fitting.

In the various views, wherein like numbers refer to corresponding parts, I is an outlet pipe supported on a stand 2 and fastened thereto in any satisfactory manner as by set screws 3. Mounted across the top of the pipe or standard I, is a fitting having a top portion 4 and an integral, depending collar portion 5, both being made of strong insulating material. The top portion 4 has a flange 5 which extends over the opening in the member I, carrying parkway cable I. Preferably moulded integral with the portions 4 and 5 of the insulator, is a stud 8 which is embraced by the insulator, preferably having at least one flat surface to prevent the stud from turning in the insulator. As shown, this part of the stud is square. It is also provided with a groove or recess 9 so that when the insulator is moulded around the stud, insulation will enter the recess or groove 9 and lock the stud 8 permanently in position in the insulator which comprises the principal or major portion of the outlet fitting.

As shown in Figures 1 and 2, the collar 5 of the insulator may be exteriorly provided with a metallic ring it} which may have a flange II to engage the top of the pipe or standard I. Set screws I2 and lock nuts I3 may be used to hold the fitting securely to the standard I. Furthermore, as shown in Figures 1 and 2, the insulator fitting has an upwardly projecting part I4 having a transverse groove I5 therein to receive a base clamp I6 which is also provided with oppositely disposed grooves I! to receive the downwardly extending ends I8 of a spring member formed with loops I9 and 20 disposed on opposite sides of a hole passing through the spring member to receive the stud 8. The loops I9 and 20 are made of a size to receive the cable to be used in connection therewith.

The spring member is depressed between the loop formations I9 and 20 to form a saddle type of seat to receive a compressing means 2| which is in the shape of a half-cylinder, the curved portion of which is located in the saddle formed in the spring member. Preferably the compression means 2I is permanently anchored in position in any satisfactory manner, as by soldering, brazing or preferably spot-welding at one or more points 22. The compressing means H is provided with a hole to pass the stud 8.

The top portion 4 of the fitting is provided with a hole 23 to pass the parkway cable I, the end of which is bared and wrapped around'the stud between the washers 24 and held in place by a nut 25 which also acts on the compressing means 2| and causes the spring member to contract so as to securely grip the bond wires or cables 26 in place. In some cases, the parkway cable 7 may be inserted or passed through one or both of the loops I9 and 20 and held directly to the bond cables.

In Figure 5, the entire fitting is made of insulating material and the base clamp or seat for the spring member is entirely done away with, the transverse grooves I! being formed directly in the top portion 4 of the fitting. Also in this figure the metal collar Ill, indicated by the dotted line 27, may be entirely done away with, in which case the wall of the collar 5 is preferably made thicker so that it will not be injured by the set screws I2 which, as a matter of fact, need not be set up very tightly to hold the fitting in place on the standard I.

In the construction shown in Figure 2, the flange I I on the ring IO need not be used, in which case the flange 6 of the insulator will rest directly on the standard I. When the metallic ring III is used, it may or may not be moulded in position when the insulator is moulded.

It will be noted from Figure 2 that after clamping pressure is applied by the nut 2| to the saddle of the spring member, the loops I9 and 20 contract and engage nearly all of the peripheral surface of the cables or conductors located within the loop, it being understood, as previously explained, that the loops are made of a size compatible with