Transmission for adjustable sashes in door or window frames

Details Transmission for adjustable sashes in door or window frames Transmission for adjustable sashes in door or window frames

E - Fixed Constructions

05

B

E05B 15/00 (2006.01) E05C 9/02 (2006.01) E05B 63/06 (2006.01)

Patent

CA 2093399

One stile of the sash in a door or window frame has an elongated channel for an elongated trough-shaped gear case rotatably receiving a first gear in mesh with the toothed rack of a reciprocable carrier in the gear case. A bifurcated end portion of the carrier mounts a second gear which meshes with a fixed rack of the gear case and with an elongated rack which is slidable along and overlies an open side of the gear case. The first gear can be rotated by a handle to move the carrier whereby the second gear rolls along the fixed rack and causes the elongated rack to perform a movement greater than the carrier. The elongated rack is coupled to motion receiving bars in the channel of the stile.

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