Down rigger boom hinge

Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Hinge – Including means to hold or retard hinged members against...

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Details

43 274, 248514, A01K 9710, F16M 1300

Patent

active

046413952

ABSTRACT:
A hinge for pivoting down rigger booms from a horizontal to a vertical position and vice versa. The hinge comprises two elements, one stationary and adapted to removably attach to conventional fishing down rigger bases, the other rotatable about a pivot having removable connection to a down rigger boom. The hinge is designed so that the stationary element has a "U" shaped member adapted for mating with an insert member of the rotatable element, the two elements being apertured so that a pin or bolt rotatably connects them together. Interlocking lips formed from the two hinge elements provide automatic holding of the boom in a horizontal position. A circularly curved surface on the stationary element and a circularly curved surface on the insert member of the rotatable element, in concert with the pivot point, form a guide for rotating the boom. A slot in the stationary element is provided to accept the lip of the rotatable element when the boom is in the vertical position, gravity acting to pull the lip into the slot, thereby automatically holding it in that orientation. To lower the boom, the user simply lifts the boom out of the slot and then rotates the boom to the horizontal position, as guided by the curved surfaces. A fastening means is provided which permits the user to optionally tighten the hinge in either the horizontal or vertical position.

REFERENCES:
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patent: 255781 (1882-04-01), Graeser
patent: 358527 (1887-03-01), Zwoyer et al.
patent: 510864 (1893-12-01), Johnson
patent: 822648 (1906-06-01), Carter
patent: 993154 (1911-05-01), Dailey
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patent: 2159902 (1939-05-01), Lewis
patent: 2734708 (1956-02-01), Cohn
patent: 2969899 (1961-01-01), Brooks
patent: 3191898 (1965-06-01), McCullough
patent: 3819136 (1974-06-01), Finke
patent: 4478169 (1984-11-01), Shrefler

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