Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Washer structure – Including adjustable thickness means
Patent
1994-10-17
1996-06-04
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Washer structure
Including adjustable thickness means
411546, F16B 4300, F16B 4302
Patent
active
055226884
ABSTRACT:
There is disclosed an automatic space take-up device which comprises a pair of generally cylindrical and axially aligned bodies, each having a central through aperture, with a flat base at their outer ends, and having opposed inclined ramps, with a cylindrical sleeve receiving and surrounding the bodies, and a torsion spring received within the central aperture of the bodies and secured at its opposite ends to a respective one of said bodies. One of the bodies is permanently attached to the sleeve and the other body is rotationally and axially moveable within said sleeve and is biased axially outwardly by the torsion spring. The take-up device also includes aligned apertures in the moveable body and in the sleeve with a lock pin removably received in said aligned apertures to restrain said moveable body against the resilient bias of said torsion spring. In its preferred embodiment, each of the bodies of the take-up device is provide with inner and outer inclined ramps, with the inner ramps concentrically located within the outer pair and at 180 degree angular spacing thereto, to provide stability to the take-up device throughout its entire expandable length.
REFERENCES:
patent: 1746978 (1930-02-01), Winkler
patent: 1966780 (1934-07-01), Wyrick
patent: 3830484 (1974-08-01), Bright et al.
patent: 5180268 (1993-01-01), Richardson
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