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

1993-04-02

1995-02-14

Cuomo, Peter M.

Movable or removable closures

Closures interconnected for concurrent movement

Moves at different speeds

49362, E05F 1700

Patent

active

053883705

ABSTRACT:
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.

REFERENCES:
patent: 832010 (1906-09-01), Cossey
patent: 858147 (1907-06-01), Browne
patent: 1005281 (1911-10-01), Murphy
patent: 1082129 (1913-12-01), McCabe
patent: 2808626 (1957-10-01), Sassano
patent: 3241283 (1966-03-01), Ahlgren
patent: 3994093 (1976-11-01), Mayer

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