Fire escape – ladder – or scaffold – Platform with elevating or lowering means – Suspended
Patent
1976-08-10
1980-06-03
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Platform with elevating or lowering means
Suspended
182187, A45F 326, A47C 910
Patent
active
042057337
ABSTRACT:
A portable elevated station to be mounted on a tree, including a platform suspended from a hoist. The hoist includes a drum rotatable by handles. The hoist and platform are suspended from a bough of the tree by a rope which is connected to the tree at one end and to the drum near the other end. The drum is rotated by the operator on the platform, to wind or unwind the rope and raise or lower the platform, by the handles. The handles are at an angle of about 90 degrees to each other. There is then, in all angular and elevated positions of the drum, one or more handles available which can be pulled downwardly to wind the rope on the drum and to raise the hoist and platform. The hoist is provided with a latching mechanism including plungers which extend from the ends of the handles, each plunger having a pawl at its outer end. When a handle is rotated at a high speed as the platform drops, the pawl is projected outwardly engaging a plate extending from the frame of the hoist to stop rotation of the drum.
REFERENCES:
patent: 305100 (1884-09-01), Moore
patent: 1554323 (1925-09-01), Bauerle
patent: 3731762 (1973-05-01), Sirl
patent: 3814345 (1974-06-01), Kropelnicki
patent: 3957135 (1976-05-01), Lane
Diamond Hymen
Machado Reinaldo P.
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