Nut

Details Nut Nut

1977-04-29

1978-04-11

Britts, Ramon S.

Brushing, scrubbing, and general cleaning

F16B 3936

Patent

active

040833933

ABSTRACT:
Nut which is separated into segments so that the segments can be expanded or contracted being guided at a tapered hole formed in the nut segments, characterized in that a tapered hole has an inlet port at a narrower end and an insertion hole at a broader end so that a bolt to be fastened can penetrated therethrough; nut segments have guide pins at their back which are always urged by a spring toward the narrower side of the tapered hole, and an operation ring is rotatably fitted to the outer periphery of the main body, and the operation ring is provided with a cam part which, when the operation ring is turned, moves the guide pins toward the broader side of the tapered hole against the spring to keep the positions of the nut segments, or releases the guide pins so that the nut segments are restored to the narrower side of the tapered hole by the force of the spring.

REFERENCES:
patent: 2393764 (1946-01-01), Frank
patent: 2489613 (1949-11-01), Beswick
patent: 2576579 (1951-11-01), Donovan
patent: 2814324 (1957-11-01), Shur
patent: 3151652 (1964-10-01), Sahodiakin

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