Combined window operator and hinge

Movable or removable closures – Mounted for multidirectional or oblique movement – Swings on plural axes; e.g. – pivotal link arms

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Details

49260, 49341, E05D 1542

Patent

active

048235083

ABSTRACT:
A combined window operator and hinge having a hinge with a track mountable to a window frame for a pivotal window and an operator case also mounted to the frame in spaced relation to the track. The hinge has a shoe movable along the track and a sash arm movable relative to the shoe as well as a control arm pivotally connected between the track and the sash arm. A lever, in the form of a bell crank, is pivoted to the shoe and to the control arm and has a connection to the operator through an operator arm and a drag link whereby torque may be imparted to the control arm for facilitating opening and closing movement of the hinge and window sash associated therewith with the application of minimal force to the operator.

REFERENCES:
patent: 1508624 (1924-09-01), Soule
patent: 2711316 (1955-06-01), South
patent: 2784459 (1957-03-01), Anderberg
patent: 3345777 (1967-10-01), Anderberg et al.
patent: 4253276 (1981-03-01), Peterson et al.
patent: 4301622 (1981-11-01), Dunsmoor
Drawing No. 14-61-00-100 of Truth Incorporated, dated 10-81.
A photo of a hinge developed by a German company, named Groetmeyer.

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