Machine element or mechanism – Mechanical movements – Reciprocating or oscillating to or from alternating rotary
Patent
1976-04-16
1978-04-25
Wyche, Benjamin W.
Machine element or mechanism
Mechanical movements
Reciprocating or oscillating to or from alternating rotary
403 46, F16H 2702
Patent
active
040856232
ABSTRACT:
Disclosed is a device for adjusting the length of a rod, which comprises in combination a cylindrical body provided with an internally embedded nut for allowing the external male screw formed on the peripheral surface of a rod to be driven therethrough and adapted to be freely moved in the direction of the length of the rod by the rotation thereof around its axis, a pair of freely swingable pawls disposed in an opposed relationship and extended via constrictions serving as hinges therefor from the upper edge of the cavity of said cylindrical body, an annular operating member encircling the upper edge of the cavity of said cylindrical body and having the outer ends of said pawls connected thereto, whereby a vertical movement imparted to said annular operating member causes the inner free ends of said pawls to plunge into or emerge from said cavity and consequently come into or out of engagement with a flattened portion formed above said male screw on said rod and enable the movement of said cylindrical body to be freely adjusted relative to the direction of the length of said rod.
REFERENCES:
patent: 1683516 (1928-09-01), Adams
patent: 2694586 (1954-11-01), Smith
patent: 3551931 (1971-01-01), Monroe et al.
patent: 3838603 (1974-10-01), Schwartzman
Beart Robert W.
Halvarsen Jack R.
Nifco Inc.
Ratliff, Jr. Wesley S.
Wyche Benjamin W.
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