US1829354A - Insulator - Google Patents

Description

Patented ct. 27, 1931 UNITED STATES PATENT OFFICE I:VICTOIRIr FREDERICK HOUDE, F WINNIPEG, MANITOBA, CANADA, ASSIGNOR OF ONE- HALF TO FERDINAND RITCHIE LA FLECHE, OF HEADINGLY, MANITOBA, CANADA INSULATOR Application led June 21,

My invention relates to improvements in insulators more particularly referring to line wire insulators, one of the ob]ects oi my invention being to provide an insulator with wire receiving socket and clamping device for readily securing the wire in place eliminating the necessity for binding or looping the wire for attachment purposes.

A further object of my invention is to provide a wire clamping device for insulators that operates to clamp the Wire and securely hold it against longitudinal movement in either direction and further to secure the wire without liability of injury to, or weakr ening of, the wire.

, Amy invention resides in the combination of parts and elements hereinafter more particularly described and claimed, reference also being had to the accompanying drawings wherein like characters of reference indicate :like parts throughout the diHerent views and gaged and shown gripping a wire or con- 35r ductor.

Fig. 2 is a. rear elevation of the device complete with the clamping device secured in engagement with a wire.

Fig. 3 is a side elevation of the device shown partly sectioned and illustrated with the lockinfr member disengaged.

ig. 4 is a detail view of the clamping device.

Having reference to the accompanying drawings the device consists of a body 1 of porcelain or other insulating material cylindrical shaped in general conformity with insulators of this character. The interior of the body 1 is formed with the usual screw threaded bore 2 for reception of a threaded 1930. Serial No. 462,914.

receiving pin for attachment of the insulator to its supporting tree or the like.

The body l is formed with a rounded top 3 sloping outward to form a ridge 4 which in conjunction with a further ridge 0r encircling raised portion 5 forms an intervening depression 6 as normally used for attachment of a wire to the ordinary insulator of this type. The lower raised portion 5 can if desired be dispensed withk in the present device for ordinary use but could conveniently be retained to facilitate attachment of line ends.

Projecting from the body l is a shoulder 7 provided with spaced apart upwardly extending lugs 8 8. lntervening between the lugs 8 8 and the body l is a transverse socket 9 for reception of a wire or like conductor which is approximately aligned with the depression 6 where such depression is retained. The ycentral portion of the socket 9 is formed hollowed out somewhat below the level of the top of the shoulder 7 leaving unsupported a small part of the underside of ar wire 10 received in the socket, the said wire being supported on top of the shoulder 7. The intervening hollow so formed in the top of the shoulder 7 is opposed to a clamping device l1 pivoted on a pin 12 set in the lugs 8 8.

The clamp 11 consists of a rectangular block formed preferably of copper, or like material, similar to the conductor, and is provided on its under face with a curved engaging `surface generally conforming to the wire tobe engaged. Intermediately pro? vided on the curvedA face of the said clamp is a slight, somewhat V shaped protuberance 18, see Fig. k4, adapted to press against the wire 10 and in conjunction with the opposed hollow in the shoulder 7 create a sli ht depression in the wire lessening possibility of the wire slipping in either direction.

The rear of the top y2 of the body is formed with a projecting portion 15 the under face of which is spaced from the top of the lugs 8 8 to leave an intervening passageway communicating with the socket 9 for reception of the wire 10. Formed bisecting the top 2 eX- tending over the rear face of the said top is a groove 16 for reception of the locking member 1-l. The said groove 16 extends at its forward extremity into the depression 6 terminating in a slight indentation as indicated at 1? which is adapted to receive a projection 1S formed adjacent the end of the locking member 1i to secure the said member in place. The locking member 14 is angle-shaped in general conformity with the contour of the top 2 and is adapted to nt into snug engagement with the wall of the groove 16. ln its engagement with the clamp 11 the locking member 14 is adapted when locked in place to engage the curved face of the clamp on the wire 10 and lock the said wire against longitudinal movement.

By turning the locking member back into contact with the shoulder 7 the socket 9 is readily accessible for reception of the wire 10 through the passageway formed between the extremities of the lugs 8-8 and the projection 15. lilith the wire positioned in the socket 9 the locking member can be carried forward and secured with the projection 18 engaged in the indentation 17 and the protuberance 13 on the clamp 11 securing the wire 10 in place.

Having thus described my invention what 1 claim is 1. An insulator comprising a body provided with a projecting shoulder with a pair of spaced apart lugs upwardly extending therefrom, the upper face of said shoulder forming a transverse wire receiving socket intervening between said lugs and body, a clamp pivoted in said lugs and adapted to bear against a wire received in said socket and a resilient locking member on said clamp engageable on said body.

2. iin insulator comprising a body formed with a groove across its upper surface terminating forwardly in an indentation, a projecting shoulder formed on said body with a pair of spaced apart lugs upwardly extending therefrom said shoulder being formed with a transverse wire receiving socket on its upper face intervening between said lugs and body, a clamp pivoted on said lugs and adapted to be engaged with a wire received in said socket and lock said wire against longitudinal movement, and a resilient locking member on said clamp receivable in the groove formed on the upper face of said body and terminating in a projection engageable in the indentation at the termination of said groove.

3. An insulator comprising a body formed with a groove across its upper surface, a projecting shoulder formed on said body with pair of spaced apart lugs upwardly extending therefrom, said shoulder being formed with a transverse wire receiving socket on its upper face intervening between said lugs and body said socket being formed intermediately recessed, a clamp pivoted on said lugs engageable with a wire received in said socket to lock said wire against longitudinal movement, the under engaging surface of said clamp being curved in general conformity with such a wire and formed with a protuberance opposed to the recessed portion of said socket, and a resilient locking member on said clamp receivable in the groove formed across said body and engageable on said body.

4. An insulator comprising a body formed with a rounded head with projecting rear portion and .having a groove forwardly extendingracross said head terminating in an indentation, a. projecting shoulder formed on said body below said projecting portion and having a pair of spaced apart lugs upwardly extendingtherefrom lea fing a communicating passage between said lugs and projectmg portion terminating in a transverse wire receiving socket formed on the upper face of said shoulder said socket being intermediately recessed, a clamp pivoted on said lugs adapted to be engaged with a wire received in said socket and lock said wire against 1ongitudinal movement the under engaging surface of said clamp being curved in general conformity withsuch a wire and formed with a protuberance opposed to the recessed portion of said socket and a resilient locking member on said clamp receivable in the groove formed on the head of said body and terminating in a projection engageable in the indentation at the termination of said groove.

V. F. HOUDE.

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