Metal working – Means to assemble or disassemble – Means to assemble electrical device
Patent
1986-10-02
1988-08-02
Eley, Timothy V.
Metal working
Means to assemble or disassemble
Means to assemble electrical device
29762, 174150, 254233, 269256, B23P 1900, B25B 100
Patent
active
047606401
ABSTRACT:
An insulator-jack for replacing damaged electrical insulators in a string of insulators comprises a pair of threaded rods disposed in substantially parallel relation to one another, a pair of coplanar spaced-apart insulator clamping collars, each being connected to opposite ends of the rods by a pair of lateral arms, wherein one of the insulator clamping collars is movably positionable along the threaded rods by a pair of ratchet members to selectively vary the distance between the two clamping collars. The non-movable clamping collar is provided with an upwardly and inwardly projecting safety tongue which engages the connection between the insulator clamped within the collar and the next-above insulator in the string, and is also provided with inward projections along the internal periphery to securely engage the insulator and thereby prevents slippage of the insulator.
REFERENCES:
patent: 1997109 (1935-04-01), Fyfe
patent: 3400872 (1968-09-01), Rogers
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