LU49696A1LU49696ALU49696ALU49696A1LU 49696 A1LU49696 A1LU 49696A1LU 49696 ALU49696 ALU 49696ALU 49696 ALU49696 ALU 49696ALU 49696 A1LU49696 A1LU 49696A1
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LU
Luxembourg
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LU49696A
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Priority to LU49696ApriorityCriticalpatent/LU49696A1/xx
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E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
E05F1/02—Closers or openers for wings, not otherwise provided for in this subclass gravity-actuated, e.g. by use of counterweights
E05F1/04—Closers or openers for wings, not otherwise provided for in this subclass gravity-actuated, e.g. by use of counterweights for wings which lift during movement, operated by their own weight
E05F1/06—Mechanisms in the shape of hinges or pivots, operated by the weight of the wing
E05F1/061—Mechanisms in the shape of hinges or pivots, operated by the weight of the wing with cams or helical tracks