US1232683A - Automatic sash-lock. - Google Patents

Description

O. B. HOLLIS.

AUTOMATIC SASH LOCK.

APPLICATION FlLED MAR. 27. 1916.

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ORLANDO B. HOLLIS, OF SPOKANE, VVAS'HINGTON.

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Application filed March 27, 1916.

To all whom it may concern:

Be it known that I, ORLANDO B. HoLLIs, a citizen of the United States, residing at Spokane, in the county of Spokane and State of l s ashington, have invented new and useful Improvements in Automatic Sash-Locks, of which the following is a specification.

This invention relates to window sash locks and has for its object to provide a simple inexpensive lock of improved construction adapted to be readily actuated to lock the sash together in different relative positions and in partly open positions, so that the window cannot be opened from the outside, and to be readily actuated from the inside of the house to unlock the sash as desired.

The invention is illustrated in the accompanying drawings forming part of this specification, in which:

Figure 1 is a perspective view of a portion of a window and the lock shown locking the window sash together with the lower sash partly raised and the upper sash partly lowered.

Fig. 2 is an enlarged sectional view of a portion of the sash and the lock shown locking the sash together when partly open, as shown in Fig. 1.

Fig. 3 is a perspective view of the notch lining element.

The lock comprises a frame 1 formed with a base 2 and side walls 3, a looking lever l, pivoted to said frame between the walls 3 on pivot pin 5 which pin is mounted in said side walls, and a cam 6 which is rotatively mounted on the end of lever arm 7 on pin 8 projecting from the end of the lever arm. The lever 4cis also formed with a latch arm 9. The frame may be stamped ont of sheet metal. The frame 1 is secured to the top of the lower sash at one side thereof by screws 10 driven through the base 2 into the top of the sash, in such position that the latch arm 9 rests adjacent the side member 11 of the upper sash frame, and the cam 6 rests above the top of the lower sash. In the upper sash frame member 11 are cut a series of notches 12 adapted to receive the latch 13 of lever arm 9. A spring 15 is located in a recess 16 in the under side of arm 7, which spring engages the frame base 2 and said arm to cause the latch 13 to engage the notches 12 when said notches are in alinement with the latch so that the latch Specification of Letters Patent.

Patented July 10, 1917..

Seria1 No. 87,093.

will abut against the top of the notch to prevent downward movement of the upper sash with relation to the lower sash and upward movement of the lower sash with relation to the upper sash.

The cam 6 may be turned into engagement with the top of the sash to lock the latch 13 in the notch and in binding engagement with the inclined face of the notch 12, to lock the sash against relative movement in either direction.

A lining in the form of a staple 20 having top member 21 and side members 22 is adapted to be driven into each of the notches 12 so that the end of the latch 13 will engage the top member 21 of the lining and not gouge the wooden sash frame member 11'.

The uppermost notch 12 may be located at such point that when the latch engages it the sash will not be open sufliciently to enable a burglar to enter the house through the window and the lock will be in such position that a burglar cannot put his arm over the top of the partly open upper sash and reach the cam 6 to disengage the latch from the notch so as to open the window and enter the house.

In order to unlock the sash from the inside of the house, the cam 6 is turned out of engagement with the top of the lower sash, and the lever arm 7 is depressed which disengages the latch from the notch. The upper sash may then be lowered with relation vol to the lower sash and the lower sash may 7 then be raised with relation to the upper sash. it is not necessary to depress the arm 7 to permit upward movement of the upper sash with relation to the lower sash and downward movement of the lower sash inasmuch as the latch does not engage the top of the notches during such movement and the spring 15 permits escapement of the latch past the inclined face of the notches.

I claim:

1. A sash lock, comprising a frame adapted to be secured to one sash, an angular lever pivoted to said frame, a latch on one leg of said lever, the other sash being provided with a notch adapted to receive said latch when the sash are partly open, and a cam on one leg of said lever for engaging the sash to which said frame is secured to lock the sash in such partly open position against relative movement.

2, In a sash lock, the combination with tically disposed along one stile of the other sash and adapted to be engaged by one leg of said locking member, a spring disposed beneath the other leg of the locking member 10 to normally force the first-named leg against Copies of this patent 'niay be obtained for five cents eachgby addressing the "Cbmifiissi'bnr of Patents. Washingtoh, I). G.

the stile, and an eccentric cam rotatably mounted upon the end of said last-named leg whereby the iockiirg member may be positively locked Within one of the recesses remain- 66a the stile and prevent the movement of the sashes in relation to each other. In testimony whereof I have signed my name 'to this specification.

ORLANDO B. HOLLIS.

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