US554633A

US554633A - Sash-lock

Info

Publication number: US554633A
Authority: US
Publication date: 1896-02-11
Anticipated expiration: 1913-02-11

Description

(No Model.)

' G. H. LASAR.

SASH LOCK.

No.554,633. '-Pa.tentedFeb.11,,1896.-

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Inventor NlTED STATES ATENT Qrrrcn.

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SPECIFICATION forming part of Letters Patent No. 554,633, dated February 11, 1896.

Application filed July 6, 1893. Serial No. 479,743. (No model.)

To all whom it may concern.-

Be it known that I, GODFREY H. LASAR, a citizen of the United States, residing in the city of St. Louis and State of Missouri, have invented a certain new and useful Improvement in Sash-Locks, of which the following is a specification.

My invention relates to sash locks, and has for its principal object to arrange in one device two independently-manipulated fasteners, adapted respectively to lock the upper and lower sashes together and to lock one sash to the frame.

It also has for its objects to attain certain advantages of construction and operation hereinafter set forth.

My invention consists in the parts and in the arr ngeinents and in the combinations of parts hereinafter described and claimed.

In the accompanying drawings, which form part of this specification, Figure 1 is a plan of my device applied to a window-sash. Fig. 2 is an elevation of said device. Fig. 3 is a vertical section thereof on the line 3 3 of Fig. 1. Fig. 4 is a perspective view of the projecting locking-arm.

The device consists principally of two bolts 1, arranged at right angles to each other and adapted to move in suitable housings or barrels 2 provided therefor. The end of each bolt inside of its housing is reduced in diameter and is surrounded by a helical spring 3, one end of which bears against the end of the housing and the other end of which bears against the shoulder of the bolt formed by the reduction of its diameter. The reduced end of the bolt projects through the end of its housing and is provided with a handpiece 5 and with an L-shaped piece or projecting arm 6, which extends forward over the barrel or housing. This L-shaped piece or arm may be fastened in any suitable way to the end of the bolt; but it is considered preferable to again reduce the diameter of the bolt at its outer end and screw-thread the end of said bolt, and also to screw-thread the handpiece 5 to work thereon, so that the arm being inserted on said bolt the handpiece will clamp it in position. The end of the housing has ears or shoulders 7 projecting outwardly therefrom. The proportions of the several parts should be such that when the handpiece is position indicated, the bolt is locked out of engagement by turning the handpiece, so as to turn the arm of the bolt to engage and interlock with the shoulder on the housing.

It is preferable to cast the housings for the two bolts in one piece, one housing being slightly higher than and at right angles to the other. As the bolts operate independently, however, it is their relative position rather than their structural connection that is important.

One of the housings is arranged on the sash so that its bolt will register with and fit in any one of a series of escutcheons or boltholes provided therefor in the window-frame, and the other housing is arranged on the sash in such position that its bolt will register with any of a series of escutcheons or bolt-holes on the other sash. The sashes may therefore be locked in any desired position when the housings are separate; but it is obviously preferable to make the housings of a single casting, or to fix them together and fasten them on the same sash.

' The operation is as follows: The lock or fastener is screwed to the top corner of the lower sash and the bolt-holes are made in the upper sash and in the frame to correspond with the positions of the lock or fastener. When it is desired to change the position of the upper sash the proper bolt is retracted, leaving such sash free to be adjusted, whereupon the bolt is released and by entering a bolt-hole in such sash looks it to the lower sash, so that the two can only be moved together. To change the position of the lower sash, both bolts should be withdrawn from their holes when the upper sash is to remain in position, or only the bolt which fastens the sash to the frame should be withdrawn, when the two sashes will move together.

What I claim as new, and desire to secure by Letters Patent, is-

A sash-lock comprising a reciprocating and rotatable bolt and housing therefor, the handle end of said bolt extending centrally through the end of said housing, a spring in said housing surrounding the reduced portion of said bolt, one end bearing against the said housing and the other against the shoulder of said bolt respectively, said bolt being provided on the handle end With an L-shaped armor projection one end secured to the bolt, and the other parallel therewith, and projecting over