Movable or removable closures – With operator for movably mounted closure – Operating lever or link and closure swing about parallel axes
Patent
1975-05-27
1976-10-19
Downey, Kenneth
Movable or removable closures
With operator for movably mounted closure
Operating lever or link and closure swing about parallel axes
49 83, 74 60, E05F 1124
Patent
active
039863000
ABSTRACT:
Operating means for a window including a horizontally pivoted panel comprises an elongated torque tube extending parallel to the panel pivot axis. A torque-transfer element is pivotally connected to the torque tube for movement relative thereto about a primary transverse axis and an operating crank, which is drivingly connected to the torque-transfer element, is arranged for rotation relative to a horizontal axis at right angles to the axis of the torque tube.
REFERENCES:
patent: 2774590 (1956-12-01), Blanchard
patent: 2981538 (1961-04-01), Bennett
Beta Aluminium Products Limited
Downey Kenneth
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