US1748564A - Strap clamp terminal - Google Patents

Description

Feb. 25 1930.

E G. K. ANDERSON STRAP CLAMP TERMINAL Filed April 12, 1929 Patented Feb. 25, 1930 UNITED STATES PATENT "OFFICE ERNST e. K. ANDERSON, or EVANSTQN, ILLIIvoIs, ASSIGNOR TofArrLn'roiv ELECTRIC COMPANY, A CORPORATION OF ILLINOIS STRAP CLAMP TERMINAL Application filed April 12,

The present invention relates to devices for making a good electrically conductive connection between a wire and a pipe or the like as, for example, where a jumper is placed as a shunt across a watermeter; and it has for its object to produce a simple and efli cient device of this kind.

The various features of novelty whereb my invention is characterized will hereinafter be pointed out with particularity in the claims; but, for a full understanding of my invention and of its objects and advantages, reference may be had to the following detailed description taken in connection with the accompanying drawing, wherein:

Figure 1 shows a section of a water pipe system embodying the present invention placed around the meter; Fig. 2 is a side view, on a much larger scale than Fig. 1, showing a fragment of the pipe and one of the terminals; and Figs. 3, l and 5 are sections taken on lines 3-3, 4.-4=-and 55 respectively, of Fig. 2. Referring to Figs. 2, 3 and 4, -1 represents a flat strap having a series of holes 2 distrib uted lengthwise thereof. One end of the strap is fixed to one of my improved terminal devices. The terminal device comprises a tube flattened at one end, as indicated at 3, so as to be a fit for the end of the strap inserted therein. The inner end of this fiattened part, together with the enclosed strap member, is bent laterally as indicated at4. This bend serves a double purpose: preventing the withdrawal of the strap, and placing the body portion of the terminal device approximately radial to a ring into which the projecting portion of the strap may be bent. The outer end of the terminal member is collapsed so as to leave a tubular socket. 5, comparatively small in diameter, extending in the direction of the length of the device, flanked by one or more wings made of two thicknesses of'metal lying in contact with each other. In the arrangement shown. the tubular part 5 is atthe longitudinal center of the device, and it is flanked by two similar wings 6, 6 lying on opposite sides thereof. One end of a wire 7 fits into the tubular socket 5. When solder is applied to-the joint be 1929. Serial No. 354,516.

tween the wire and the socket, it will run The flattened part of the terminal device is provided with a hole outwardly beyond the bend. A screw or bolt 8 may be passed through any one of the holes 2 in the strap and through the hole in the terminal device,

so as to hold the strapin the form of a loop.

Since the combined thicknesses of the two' walls of'the flattened part of the terminal device and of the interposed strap is considerable, the hole in the terminal device may be screwthreaded" so that no nut is required. Since the strap bends easily prefer to place 'under the head of the screw or bolt a stiff washer. that distribute the pressure there It will be seen that when the strap is bent around a pipe or'the like and is drawn into intimate contactwith the latter by means of the screw or bolt, a good electrically conductive connection will be made between the pipe and the wire.

In Figure 1 I have illustrated my improved device-as applied for the purpose of securing affjumper or shunt arounda water meter to extend from a convenient'point on the pipe B to a convenient pointon the pipe It is fastened toeach of thesepipes by means of one of my terminals; there'being such a terminal fixed on eachend of-the wire.

While I have illustrated and described with particularityonly a single preferred form of my invention, I do not desire to be limited to .1;

the exact structural details thus illustrated and described;'but intend to cover all forms and arrangements which come within the definitions of my invention constituting the appended claims.

I claim i 1. A terminal'device comprising a tubular member flattened at one end to receive a strap and collapsed at the other end into the form so connectedto a supply pipe B and having a '7 gdischarge' pipelO. The wire is long enough being shown such a washer in the form of a 9 channel-shaped piece '9.

of a tube of small diameter flanked by a Wing portion.

2. A terminal device comprising a tubular member flattened at one end to receive a strap and collapsed at the other end into the form of a tube of small diameter flanked by a fiat Wing.

3. A terminal device comprising a tubular member flattened at one end to receive a strap andcollapsed at the other end into a central longitudinal tube of small diameter flanked on both sides by Wings parallel with" thefiatened portion at the other end.

4. A strap clamp terminal comprising a strap, a tubular member flattened at one end a and fitting over one end of the strap, the

inner end of said member and the enclosed strap bem g bent on a transverse line, a socket at the outer end of said member for receiving a Wire, and a detachable fastening device between the free end of said strap and said member outwardly from the bend.

'5. A strap clamp terminalfcomprising a strap, a tubular member flattened at one end and fitting over one end of the strap said flattened portion and the enclosed part of the strap being bent on a transverse line outwardly from the bend, the outer end of said member being collapsed so as to leave a longitudinal tubular part of small diameter, a Wire fitted into said tubularpart, and a detachable fastening device between the free end of the strap and the-flattened part of said member outwardly from the bend.

6. A strap clamp terminalcompris'inga strap, a tubular member flattened at one end 1 and fitting over one end of the strap, there being a hole through the flattened portion of 7 said member and the strap Within the same, the tree portion of the strap having a series of holes distributed lengthwise of the same, a bolt adated to pass through one of the'hole's in the tree portion of the strap and the hole in saidniember to secure the strap in the form of a loo'p,th'e outer end of said member being collapsed into the form of a longitudinal tubular part of small diameter flanked by one or morewings, and a Wire fitting into said-tubular part. In testimony whereof, I sign this sp'ecification.

'E. e. 'K. ANDERSON.

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