Roofing membrane puller

Details Roofing membrane puller Roofing membrane puller

1987-04-07

1988-05-10

Levy, Stuart S.

Implements or apparatus for applying pushing or pulling force

Portable implements or apparatus for tensioning flexible...

254208, 254212, B25B 3300

Patent

active

047429925

ABSTRACT:
A roofing membrane puller for tautly pulling a water-proof membrane over a flat roof, even to the edges thereof, includes a frame, at least one anchor which maintains the frame in a selected position on the flat roof, a locking gripper having releasably lockable jaws for gripping the membrane, a leveraged hand drive which is mounted to the frame and includes a lever which is pivotally mounted to the frame and can be grasped by an operator's hand to move the lever and apply a force to the lever in driving direction, and a pulley-cable system for transmitting a pulling force from the leveraged hand drive to the locking gripper to pull the membrane. A cable extends from the leveraged hand drive through at least one pulley where the cable's direction can be changed so that the cable and locking gripper can pull the membrane in a direction which is generally perpendicular to the longitudinal axis of the puller frame. This exit pulley may be connected to the front end of the frame through an extender which projects the exit pulley in a forward direction from the front end of the frame so that the exit pulley can be projected near to the edge of the roof by placing the puller near the edge of the roof with its longitudinal axis at a slight angle thereto.

REFERENCES:
patent: 334665 (1886-01-01), Jones
patent: 395445 (1889-01-01), Lamb
patent: 761151 (1904-05-01), Cummings
patent: 932382 (1909-08-01), Frank
patent: 2284532 (1942-05-01), Napier
patent: 4560146 (1985-12-01), Thomas

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