US2145112A - Window lock - Google Patents

Description

A. FEDOR, JR

WINDOW LOCK l Jan. 24, 1939.

. Filed NOV. 1,V 1937 ATTORN EYS WITNESS Patented Jan. 24, 1939 UNITED STATES PATIENT G'F F ICE 1 Claim.

avoided in that such sashes on the closing thereof will be latched automatically in their closed posi- 16 tion, only requiring hand release for the opening thereof.

A further object of the invention is the provision of a lock of this character, wherein the construction of the same is novel in its entirety and is automatic in the working thereof for the latching of Window sashes closed.

A further object of the invention is the provision of a lock of this character, which is simple in construction, readily and easily applied tothe meeting rails of window sashes, thoroughly reliable and eicient in operation, automatically acting, strong, durable, and inexpensive to manufacture and install.

With these and other objects in view, the invention consists in the features of construction, combination and arrangement of parts as will be hereinafter more fully described, and illustrated in accompanying drawing, which discloses the preferred embodiment of the invention and pointed out in the claim hereunto appended.

In the accompanying drawing:

Figure 1 is a fragmentary vertical sectional View through a window showing the sashes in separated or partly opened relation to each other and the lock constructed in accordance with the in- Vention applied.

Figure 2 is a View similar to Figure. 1 showing the lock in position for locking the sashes closed.

Figure 3 is a sectional View on the line 3-3 of Figure 1 looking in the direction of the arrows.

Figure 4 is a sectional View on the line 4 4 of Figure 1 looking in the direction of the arrows.

Similar reference characters indicate correspending parts throughout the several views in the drawing.

Referring to the drawing in detail, A designates generally a portion of a window frame in which are slidably fitted upper and lower sashes, portions of these being indicated at B and C, respectively, and are of standard make.

Associated with the sashes of the window slidably tted in the frame A is an automatic Window lock constituting the present invention and comprises a bolt housing or casing 5 preferably made from metal in which is slidably tted a locking bolt 6 of the spring projected type. This housing 5 is securely fastened to the meeting rail of the lower sash while fastened to the meeting rail of the upper sash is a keeper 1 for alignment with the housing 5 on the closing of the sashes within the window frame A and such keeper 'I accommodates the latching end of a spring projected bolt 6. The bolt 6 has attached thereto a pull handle 8 working through a clearance in the housing 5 and such bolt is held under tension by a coiled spring 9 about the pull handle 8 so that the bolt is urged into locking position.

Pivoted interiorly of the housing 5 on one side wall thereof is a rocking arm or lever I0 having the notched end II engageable with a stop I2 formed on and projecting laterally from the bolt 6 and this lever when engaging the stop I2 holds the bolt retracted in the housing 5 or in unlocking position.

Pivotally fitted within the keeper 'I is an adjustable striker I3 being pivoted at I4 to one side wall of said keeper 1 and such striker I3 is adjustable under the action of an eccentric or cam I5 operated from a turning screw or arbor I6 accessible without the keeper 'I while pivoted within the housing 5 is a cam faced trigger I'I adapted for engagement with the striker I3 when brought into the path of the latter, the pivot for the trigger I'I being indicated at I8. Pivoted to the arm or lever I0 at the end overhanging the trigger I'I is a trip I9, being swingable only in a counter-clockwise direction for riding the trigger I'I and in this way the arm or lever I0 at the latching end I I can be unlatched from the stop I2 to free the bolt 6 for the engagement thereof in the keeper 'I on the closing of the sashes B and C within the window frame A. The bolt 6 when retracted within the housing 5 is latched in this position by the arm I 0 at the end II engaging the stop I2. The trigger I1 is acted upon by a spring 20 urging it into the path of the striker I3 and similarly the arm or lever I0 is acted upon by a spring 2I urging it into latching position to have the end I I in the path of the stop I2 on the bolt 6. When the trigger I'I is actuated by contact with the striker I3, the trip I9 rides the trigger at the working or cam face 22 thereof for the automatic release of the bolt 6 to allow the same to be thrown to locking position for engaging the keeper 'I.

On adjustment of the striker I3, it can be projected from the keeper 1 the desired degree for the proper action of the trigger I1. The trip I9 is held against clockwise movement or limited in this direction of movement by an abutment 23 on the lever I0 in the path of said trip, so that the trigger I'I `on swinging in one direction through its cam face will rock the arm or lever ID for disengaging the stop I2 and thus freeing the bolt 6 to be projected by the spring 9 acting therewith.

From Figures 1 and 2 of the drawing', it should be apparent that when either the upper or lower sash is in an open position and closed, the lock automatically operates for the latching of both sashes in closed position within the window frame A. When it is desired to release either sash, the bolt 6 is retracted in the housing 5 of the lock, this being accomplished by pulling upon the pull knob 8 hereinbefore set forth and the arm or lever I0 latches the bolt in its retracted position.

What is claimed is:

A window lock comprising a bolt casing, a spring-projected bolt within said casing, a lug on said bolt and projecting laterally therefrom, a rocking lever pivoted in the casing between one side thereof and said bolt for disposition in the path of the lug, a trigger mounted for vertical swinging movement within the casing for engagement with a striker, a trip on the lever and swingable counterclockwise for riding engagement with the said trigger, a cam formed on the trigger and coacting with the trip for effecting the rocking of the lever and disengagement thereof from the lug. and springs acting upon the trigger and the said lever for urging the same in one direction.

ANDREW FEDOR, JR.

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