US928014A - Sash-lock. - Google Patents

Description

F. H. WooLLBY. SASH LOCK.

APPLICATION FILED FBB.26,1909..

928,014. Patented Ju1y13,19o9.

Snvanoz W mm.,

FRANK HARRY WOOLLEY, OF NEW YORK, N. Y.

SASH-LOCK.

Specification of Letters Patent.

Application filed February 26, 1909.

Patented July 13, 1909.

Serial No. 480,180.

To all whom it may concern:

Re it known that l, FRANK HARRY WOOL- LEY, a citizen of the United States, residing at Bronx, in the county of New York and State of New York, have invented new and useful Improvements in Sash Locks, of which the following is a specification.

This invention relates to a sash lock for holding the sashes of a window closed so that they cannot be opened from the outside, and it relates more particularly to a sash fastener of that type which will automatically lock by the closing of the sashes.

The invention has for one of its objects to improve and simplify the construction of devices of this character so as to be comparatively simple and inexpensive to manufacture, reliable and efficient in use, and readily manipulated.

Another object of the invention is the provision of a sash lock consisting of a springpressed bolt arranged on one sash and adapted to enter a catch on the other sash, the bolt being made in two parts spread so as to interlock with shoulders in the catch to 3 event the bolt from being worked loose w]hen the sash fastener is locked, except by deliberately unlocking the fastener from the inside of the window.

With these objects in view and others, as will appear as the description proceeds, the invention comprises the various novel features of construction and arrangement of parts which will be more fully described hereinafter and set forth with particularity in the claims appended hereto.

ln the accompanying drawing, which illustrates one embodiment of the invention, Figure 1 is a plan view of the sash lock. Fig. 2 is a longitudinal vertical section thereof. Fig. 3 is a horizontal longitudinal section of the lock. Fig. 4 is a perspective view of one section of the bolt.

Similar reference characters are employed to designate corresponding parts throughout the views.

Referring to the drawing, 1 designates the bottom rail of the upper sash, and 2 the top rail of the bottom sash and fastened to these rails are the parts of the sash lock. Mounted on the top of the rail 2 is a housing 3 open at both ends and provided with apertured flanges l which receive screws or other fastenings 5 for securing the housing to the said rail, and secured to the rail 1 in alinement With the housing 8 is a catch 6 having oppositcly-disposed apertured flanges 7 for receiving screws 8 for holding the catch in place. Disposed within the housing 3 is a locking bolt 9 that is split longitudinally into two sections a and b that are formed with Shanks 10 arranged in scissors fashion and pivotally connected together at 11, the Shanks extending out of the front end of the housing and terminating in grips 12 whereby the bolt can be manipulated. The bolt 9 is adapted to enter the catch 6 and the outer faces of the two sections a and l) are provided with recesses 1S that present shoulders 14 which are adapted to interlock with shoulders or abutments 15 on the opposed vertical walls of the catch 6, and the bolt is held in engagement with these shoulders or abutments by a leaf spring 16 secured to one of the shanks 10 and bearing against the other shank so as to cause the two sections of the bolt to be normally spread a art. Disposed in the housing 3 is a helica compression spring 17 which bears at its outer end against the outer wall 18 of the housing and at its inner end against the sections c and b of the bolt to hold the bolt projected from the rear end of the housing. The under side of the bolt at the rear end is beveled as indicated at 1S and is adapted to strike a beveled abutment 19 on the top of the catch 6 so that when the lower sash is moved downwardly or the upper sash moves upwardly from open to closed position, the beveled extremity of the bolt will strike the abutment 19 and cause the bolt to be forced inwardly against the tension of the spring 17 until the catch 6 is directly opposite the housing, as when the sashes are closed and at this point the bolt will spring outwardly to normal position and enter the catch. The movement of the bolt under the expansion of the spring is limited by a screw or other stop 2O on one of the shanks 10 which engages the outside or front end ofthe housing 3. As the bolt is forced inwardly into the catch 6, the sections a and b are cornpressed together against the tension of the leaf spring 16 until the bolt is fully entered when the sections spread apart to engage behind the shoulders 15. When the parts of the sash lock are in this position, the bolt cannot be opened without irst grasping the handles 12 and compressing the shanks 10 together and pulling outwardly on the bolt.

From the foregoing description, taken in connection with the accompanying drawing, the advantages ofthe construction and of the methodof operationwill bereadily apparent l 1. Ina lock of the character described,

the combination of a lock bolt comprising similar memberspivotally connected, and a catch adapted to cooperate therewith.

2. The combination of a housing, a reciprocatory bolt therein composed of two parts,

Shanks connected with the parts and ar-v ranged in scissors fashion, a pivot connecting the-Shanks together, a spring for holding the bolt projected, means for spreadingl the `parts of the bolt, and a catch with which the bolt engages.

3. In a lock of the character described, the combination of a lock bolt comprising similar complemental members pivotally connected and mounted to receive a reciprocatory movement, aA housing for said lock bolt, means for limiting the reciprocating movements of the lock bolt, and a catch adapted to coperate with both members of the lock bolt.

4. In a lock of the character described,

appended n ing a mount for said lock bolt.

the combination of a catch embodying spacedI interlocking elements, a reciprocating lock bolt, comprising similar complemental members pivotally connected and adapted to engage with the aforesaid interlocking members of the catch, a spring normally exerting a force to press the members of the lock bolt apart and hold them in engagement with the catch, a second spring for projecting the lock bolt, and a housing form- 5. In a lock of the characterr described, the combination of a catch consisting of a hollow body provided with oppositely disposed abutments and having a beveled projection, a reciprocating lockbolt formed of similar complemental members pivotally connected and having their engaging ends beveled upon adj acentsides to ride upon the beveled projection of the catch and the walls of said catch provided withsaid abutments, a housing receiving said lock bolt, a spring normally exerting apressureto force the engaging ends of the lock bolt members apart, l a second spring inclosed in the housing and Inormally exerting a force to hold ,the lock bolt projected, and Vmeans for limiting the reciprocating movements of the lock bolt.

In testimonyT whereof I afliX my signature in presence of two witnesses.

FRANK :HARRY wooLLEY,

Witnesses:

JOHN W'. DAvIs, GAETANO 'ZAMPARIELLQ

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