Lockable window construction

Abstract

A window frame has one or more latches provided internally of a vent sill for pivotal engagement with a latch strike in the interior of a frame sill and a latch actuator extending outwardly through an opening in the inside face of the vent sill. A spring urges the latch into engagement with the strike with the latch and the actuator being movable in a linear horizontal direction so that a slot in the side of the actuator engages the edges of the opening through which the actuator extends to hold the actuator and the associated latch in a locked or non-pivotable condition. A second embodiment employs a similar pivotal and slidable latch member in a side frame of a horizontally movable vent frame which is pivoted into latching position inside an opening in a fixed vertical meeting rail and is retained in locked or non-pivotable condition by subsequent linear vertical movement of the latch to a restricted slot portion from which it cannot pivot from the locking position. Another aspect of both embodiments is the employment of L-shaped plastic extrusion glaze strips of sufficient flexibility to be usable with different panes of varying thickness and which can include cutouts for receiving and supporting the ends of muntin grid components giving the appearance of smaller panes mounted in a grid or similar shaped framework.

Dependencies are inferred from the claim text.