Supports – Props and braces – Adjustable length
Patent
1986-03-21
1988-01-12
Britts, Ramon S.
Supports
Props and braces
Adjustable length
248541, 52632, 521261, E04G 2502
Patent
active
047186283
ABSTRACT:
An adjustable shore frame is disclosed which has a first sleeve member adapted to slidably receive a major length adjusting vertical support member and a second sleeve member adjacent to the first sleeve member and adapted to slidably receive a minor length adjusting vertical support member. First adjusting members are adapted, in association with the first sleeve member, to longitudinally releasably engage a major length adjusting member relative to the first sleeve member to provide major or rough adjustment of the overall length of the shore. Second adjusting members are adapted, in association with the second sleeve member, to provide for continuous instantaneous extension or retraction of the minor length adjusting vertical support member longitudinally relative to the second sleeve member to provide for minor or fine adjustment of the overall length of the shore.
REFERENCES:
patent: 1740876 (1929-12-01), Sauer
patent: 2714498 (1955-08-01), Wuthrich
patent: 2925981 (1960-02-01), Wilson et al.
patent: 2945662 (1960-07-01), Jennings
patent: 3324613 (1967-06-01), Duboff
patent: 4449876 (1984-05-01), Glanton
Britts Ramon S.
Chotkowski Karen J.
Gordon Edward A.
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