Fire escape – ladder – or scaffold – Unitary foldable – rigid scaffold or ladder – Trestle
Patent
1983-06-27
1984-06-19
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Unitary foldable, rigid scaffold or ladder
Trestle
182181, 182225, 269296, 269901, B27B 2100, A47B 3700
Patent
active
044549296
ABSTRACT:
A folding sawbuck is disclosed that combines a cross frame design with integral vertical members, allowing a large quantity of logs or other wood to be cut into firewood at one time. The use of independant support assemblies, secure by horizontal members, provides an obstruction free cutting path that gives fast and safe cuts under all types of conditions, with all types of wood. The sawbuck is designed to be folded compactly for storage, and then opened for use with a minimum of difficulty. Two different embodiments of the invention are disclosed, each design using a different means for forming the "X"-frame portion of the main support assemblies. The invention is designed as a kit, with all parts pre-cut for easy assembly, or it can be manufactured fully assembled. The sawbuck can be constructed from either wood, metal or plastics.
REFERENCES:
patent: Re26354 (1968-02-01), Usher
patent: 162799 (1875-05-01), Collins
patent: 1620061 (1927-03-01), Blair
patent: 3034546 (1962-05-01), Parsons
patent: 4133412 (1979-01-01), Hildebrandt
patent: 4325543 (1982-04-01), York
Machado Reinaldo P.
Tavella Michael J.
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