US937197A - Sash-lock. - Google Patents

Description

H. G. VOIGHT.

SASH LOCK.

APPLIOATION FILED nu 12, 1909.

937,197. Y Patented 0ct.19,1909.

.u m AIminimunmM-MINI! @NITE ES ATENE HENRY G. VOIGIIT, OF NEW BRITAIN, CONNECTICUT, ASSIGNOR TO RUSSELL & ERWIN MANUFACTURING COMPANY, OF NEW BRITAIN, CONNECTICUT, A CORPORATION OF coNNEcTIcU'r.

SASII-LOCK.

Speciicaton of Letters Patent.

Patented Oct. i9, 1909.

Application led. May 12, 1909. Serial No. 495,482. V

To all whom it may concern:

Be it known that I, HENRY G. VOIGHT, a citizen of the United States, residing at New Britain, county of Hartford, State of Connecticut, have invented certain new and useful Improvements in Sash-Locks, of which the following is a full, clear, and eXact description.

My invention relates to improvements in sash fasteners, the object being to provide simple and effective means for locking the fastener against being tampered with.

in the accompanying drawings, Figure 1 is a plan view of my invention. Fig. 2 is a view of the under side of one part of the sash fastener showing the sash fastening member in one position and locked against operation. Fig. 3 is a similar view showing the sash fastener member in a second position and partially unlocked. Fig. 4 is a sectional view of Fig. 2 on the line Fig. 5 is a View of a detached detail.

The general form of the sash fastening device is old and well known and hence will not be described at great length since the particular novelty resides in the locking mechanism for the fastening element.

l represents a frame or case designed to be secured to the upper edge of the lower section of a window. This case l carries the well known fastener element 2, which is pivoted at 8, whereby said fastener may be turned by means of a handle 4.

5 is a keeper plate secured to the lower part of the upper window section in the usual manner, and provided with the well known locking shoulder 6 with which the cam fastener 2 coacts. As shown in Fig. l, the cam fastener is in position to lock the window sashes together whereby the lower section cannot be pushed up nor the upper section pulled down. When the handle 4 is swung to a position directly opposite to that shown in Fig. l, the cam 2 is entirely freed from the second part of the fastener, disengaging the sash and permitting either section of the window to be moved. To hold the cam fastener2 in the locking position shown in Fig. l, or in the opposite position referred to, namely, the unlocked position, I provide an elongated under-bearing 7 arranged within the case l and designed to turn with the spindle or pivot 3 of the cam 2, this under-bearing being suitably connected so that it cannot turn independently of the cam 2.

8 is a spring carried within the case l and bearing against the elongated under-bearing 7 to frictionally hold it against movement. It is preferable to use two'companion springs 8 8*l which bear on opposite sides of the elongated under-bearing 7. When the cam 2 is turned by the handle 4, the springs S--Sa bow outwardly as best seen in Fig. 3, and the position of the under-bearing 7 in throwing the cam from thelocked to the unlocked position is of necessity reversed.

My improved locking means comprises a blocking` out member or arm 9, pivotally mounted in a suitable bearing 10, the arm 9 being shiftable from the position shown in Fig. 2 to that shown in Fig. 3 (or vice versa) only by means of a suitable key 1l. ln the particular form of bearing 10 shown in the drawings, the same constitutes the cylinder of a well known'pin-cylinder lock and in this case it is preferable to provide two lateral extensions or housings 12-12a for the pin tumblers indicated in dotted lines at 14-l4a, Fig. 2. When the proper key ll is inserted, the blocking out member 9 may be swung to the position indicated in Fig. 2. 'This position of the blocking outv member is such relatively to the spring 8 that it can not be bowed suiliciently to permit the elongated under-bearing 7 to turn to the position indicated in Fig. 3, hence, so long as the blocking out member 9 remains in the position indicated in Fig. 2, the sash fastening cam 2 cannot be shifted. When the position of the blocking out member 8 is reversed, as shown in Fig. 3, the cam 2 may be turned against the action of springs S-Sa. rlhe springs 8--8l may be held at their ends between suitable lugs lo, while, when the parts are assembled, an under cover-plate 16 may be secured in place Vunderneath said springs to house the same and hold them in place, as best seen in Fig. 4.

In operation, the user may fasten the windows and then, by inserting a suitable key 11, lock the cam fastener against movement. By having two tumbler housings l2-12a, the key ll may be easily withdrawn while standing in either of its two positions, namely, the locking position or the unlocking position. By this means a single key may be employed to lock any number of vso Windows to the greater security of the building.

What I claim is:

l. In a device of the character described, a pivotally mounted sash fastener element, an elongated onder-hearing connected thereto, a blocking out device or lock arranged to coaet With Said under-hearing to prevent the rotation of the Same, and means for moving` said blocking out device from the operative to an inoperative position and vice versa.

2. In a device of the character described, a pivotally mounted sash fastener element, an elongated under-bearing connected thereto, a spring arranged to prees against said l under-bearing, and a lock to hold Said under-bearing from beingN rotated to permit the sash fastener to be released.

HENRY G. VOIGHI.

VitneSses M. S. VIARD, C. E. RUSSELL.

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