Transmission devices with no-back brakes
AssigneeLucas Industries Limited
InventorByron Arthur Thomas Spencer
Life of this patent
Estimating the term…
Abstract
A transmission device has input and output members interconnected by two transmission members. One of the transmission members has only Restricted movement in either direction, and relative movement between the transmission members is necessary for movement of the output member. A pair of brakes are operable by movement of said one transmission member to prevent movement of the other transmission member in respective opposite directions. The arrangement is such that operation of the brakes by one transmission member in response to movement of the input member does not prevent movement of the other transmission member, whereas operation of the brakes in response to movement of the output member arrests movements of the other transmission member.
Claims12
A transmission device, comprising a relatively fixed body, a movable input member, two transmission members movable independently of each other by said input member, an output member responsive to movement of either of said transmission members, means for limiting movement, in either direction, of one of said transmission members relative to said body, and a pair of brake arrangements operable by movement of said one transmission member relative to said body to arrest movement of the other transmission member, one of said brake arrangements being operable by movement of said one transmission member in a first direction to prevent movement of said other transmission member in one direction, and the other of said brake arrangements being operable by movement of said one transmission member in a second direction to prevent movement of the other transmission member in a direction opposite to said one direction.
Dependencies are inferred from the claim text.