US1949646A - Electrical connecter - Google Patents

Description

March 6, 1934- A. B. DIBNR ELECTRICAL CONNECTER Filed Nov. l0, 1928 Patented Mar., 6, `1934 UNITED. :STATES PATENT OFFICE 1 Claim.'

This invention relates to improvements in electrical connecters of the tap oif or connecter hook type and has reference more particularly to the means used by the lineman to apply and disconnect the connecter to an overhead high tension conductor line.

In connection with electrical connecters of this character and in particular that branch constituting connecters for high tension conductors, it is often necessary to make a connection to or tap from electrical conductors that are very heavily charged and as a consequence of such high pressures of electricity that manipulation in the ordinary manner is quite impossible. Such insulated rod, which in co-operation'with a device according to the present invention makes it possible to connect a wire of a piece of apparatus to a charged high tension line. The insulated rod referred to is commonly known as a switch stick and derives its name from its frequent use for the opening and closing of switches carrying current. .The switch stick is also utilized for engaging and operating live line clamps and represents practically the only instrument required for completely attaching to or disconnecting electrical connecters from a live line,

In view of the foregoing it is the purpose of the present invention to provide an improved connecter of the character described, which may be carried and manipulated by means of a switch stick without fear of mishap and with the assurance that a perfect and permanent connection may be made with the conductor line. 1

I accomplish this purpose by means of the device illustratively exemplified in the accompanying drawing, in'which Figure 1 is a side elevational view of a connecter; Figure 2 is a front elevational view of the same showing the end ofa switch stick carrying the connecter; and Figure 3 is a sectional view of the holder end 0f the clamp screw taken on lines 3-3 of Fig-- ure l. Figure 4 is a substantially transverse .sectional view taken on lines 4 4 of Figure 1.

Referring to the drawing, 10 denotes the overhead high tension conductor line and 11 the wire of a piece of apparatus to be charged. 412 designates the body portion of the connecter and 13 the hook portion thereof, which is passed over and hangs on the conductor line 10 to be tapped. A tubular socket 14 projects downwardly at an angle from the body 10 and is adapted to receive the end of the wire 11 Ain the bore thereof, a set screw 15 being arranged in the socket 14 and adapted to be adjusted against the wire 11, as

connections are, therefore, made by means of an illustrated in Figure 1. The adjustable member carried bythe body portion 12 to clamp the conductor 10 to the hook portion 13, comprises a rectangular frame, the upper side of which is a jaw 16 which on its upright sides rides in grooves 60 17 out in the opposite sides of the block 18 projecting from the body 12 the bottom side hav ing an opening. The block 18 has an upright bore 19 axially alined with the opening in the bottom side of the frame and interiorly threaded to receive the threaded end portion of a screw bolt 20.

The screw bolt 20 constitutes the present invention and comprises a stem 21 having the threaded end'thereof projecting through the 70 opening in the bottom side of the jaw 16 which is adjustably mounted on the stem'21 by means of a lock washer 22 and nut 23 adjustable over the threads and against the bottom side of the jaw 16. The jaw 16 comprises a cross piece 16 A75 with a bore 16to allow the stem 21 to pass through, and upright side pieces 16D movable in the grooves 17 of the block 18. The other or lower end of the bolt 20 is in the form of a loop 24 having its lower end bent at right angles to 80 form a ring 25, which is'of a diameter to embrace the switch stick 26, as illustrated in Figures 2 and 3. The upper end of the switch stick 26 carries an enlarged head portion 2'? having a radially projecting stem 28 terminating in a vball end 85 29. ItA will be clear from Figure 1 that the loo portion 24 of the bolt provides just suillcie t opening between the parallel parts to accommodate the stem portion 28 ofthe switch stick 26.

The connecter is attached to the conductor line 10 by inserting the head 27 of the switch stick 26 through the ring 25 thereof and in a position to allow the stem 28 to follow upwardly between the sides of the loop 24, the ball 29 being outside -the loop 24 and on the side thereof opposite 95 J the head 27. In this manner a substantially rigid connection is made between the stick and connecter which may be raised to any heightl/ as the connecter is supported on the stem 28,*n which is seated against the wall at the upper end of the loop 24. The lineman may then passthe hook portion 13 over the line 10 and allow the connecter to lower until the line 10 is seated in the recess in the hook 13. The lineman then rotates the stick 26 and the stem 28 acts as a 105 crank to rotate the bolt, which in turn rises in the block 18 and causes the jaw 16 to move into engagement with the conductor line 10. Continued adjustment of the belt exerts great pres- 'sure ofthe jaw againstthe conductor and insures 119 a permanent electrical connection between the main cable conductor and the tap cable wire 11.

It will be appreciated that the operation just described is exceedingly simple and most reliable. The operating instrument, the switch stick, readily engages the loop portion of the bolt'and once the engagement takes place it is practically mpossible for disengagement to occur during installation. Y

Having now described my invention and' the manner in which the same operates, what I claim and desire to secure by Letters Patent is':

4 ABRAHAM .BERNARD

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