Fire escape – ladder – or scaffold – Platform with elevating or lowering means – Suspended
Patent
1985-10-07
1986-06-10
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Platform with elevating or lowering means
Suspended
182134, 182187, 105152, A01M 3102, A45F 326, A47C 910
Patent
active
045937893
ABSTRACT:
A tree or the like climbing platform wherein a platform is raised or lowered over a tree trunk by a supporting member extending from the platform to surround the tree at the opposite side of the platform. Guide rollers extend from the supporting member and the platform for contacting the tree trunk. There is provided a tree trunk engaging plate extending from the platform which is in biased engagement with the tree trunk for holding penetration. The engaging plate is released from engagement by a foot pedal which is interconnected with the plate. The climbing apparatus also includes an adjustable strap connected to the platform and surrounds the tree trunk on the same side as the supporting member. It is adjustable so that the platform will remain level irrespective of the taper or diameter of the tree. The versatility of this climbing apparatus is seen in the fact that it can be raised or lowered by various devices including a winch.
REFERENCES:
patent: 3352379 (1967-11-01), Riggs
patent: 3460649 (1969-08-01), Baker
patent: 3520383 (1970-07-01), Look
patent: 3568797 (1971-03-01), Hardy
patent: 3727723 (1973-04-01), Pitcairn et al.
patent: 3731762 (1973-05-01), Sirls
patent: 3990537 (1976-11-01), Swenson
patent: 4008785 (1977-02-01), Mugnaini
patent: 4022292 (1977-05-01), Gompel
patent: 4244445 (1981-01-01), Strode
patent: 4321982 (1982-03-01), Strickland
patent: 4321983 (1982-03-01), Nelson
patent: 4347913 (1982-09-01), Cromer, Jr.
patent: 4493395 (1985-01-01), Rittenhouse
Brochure of Woods and Water, Inc. entitled "Quick & Quiet" (undated and consisting of 4 pages).
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