Fire escape – ladder – or scaffold – Horizontal traversing - actuation – control – or response – With handle or steering means
Patent
1994-10-04
1998-03-03
Braun, Leslie A.
Fire escape, ladder, or scaffold
Horizontal traversing - actuation, control, or response
With handle or steering means
182 13, 182 63, E04G 316
Patent
active
057225060
ABSTRACT:
A movable working platform comprises a scaffold including a front frame having a pair of support posts, and a pair of front wheels mounted on opposite sides of a lower end of the front frame, a rear frame having a pair of support posts, and a pair of rear wheels mounted on opposite sides of a lower end of the rear frame. A scaffolding platform is disposed between the front and rear. A steering mechanism of the platform includes a steering shaft vertically arranged along the front frame, a handle mounted on an upper end of the steering shaft, and a drive wheel mounted on a lower end of the steering shaft. A drive mechanism of the platform includes a pedal swingably supported by the front frame, a wire member wound on a pulley and reciprocally moved in response to a swinging motion of the pedal, and a one-way clutch for transmitting only a one-way rotation of the pulley to the drive wheel.
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patent: 4088202 (1978-05-01), Costello
ESCA 2000 Pilotez Votre Echafaudage, 2 page Brochure.
Braun Leslie A.
Sanritsu Giken Kogyo Kabushiki-Kaisha
Smith Richard M.
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