US668019A - Locking device for windows. - Google Patents

Description

Patented Feb. I2, |901. M. E. REID.'

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j 1 e m m datant lill-MRF E. REID, OF BUFFALO, NEW YORK.

llOlCilhlG DEVHCE l-'OH lNDOWS.

SPFCFlCATION forming part of Letters Patent No. 668,019, dated February 12, 1901.

Application filed August 16, 1900. Serial No. 27,062. (No model.)

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Be it known that l, MARY E. REID, a citi zen of the United States, residing at Buffalo, in the county of Erie and State of New York, have invented a certain new and useful Im proved Locking Device for Windows, of which the following is a specification.

My invention relates to an improved sectional window-sash; and the object of the invention is to provide a simple and convenient ineans for locking the inner section or frame coi'ltaining the glass to the outer sections.

For a full understanding of the merits and advantages of the invention reference is to be had to the accompanying drawings and the following description.

rlfhe invention is susceptible to various changes in the form, proportion, and minor details of construction without departing from the principle or sacrificing any of the advantages thereof, and to a full disclosure of the invention an adaptation thereof is shown in the accompanying drawings, in which- Figure 1 is a perspective view of my improved sash. Fig. 2 is an enlarged detached side view of the sash-key. Fig. 3 is a fragment of the sash, showing the locking-cam of the sash-k eyin its locked position in full lines and in its unlocked position in dotted lines. Fig. a is a fragment of the sash, showing the hinged finger-piece of the sash -key folded down into the depression in the sash. Fig. 5 is a section on line a a, Fig. a. Fig. 6 is a detached view of the slotted supporting-disks. Fig. 7 is a detached perspective view of the lock-plate. Fig. 8 is a fragmentary view of the sashkey, showing the hinged finger-piece in its two positions.

ln referring to the drawings for the details of construction like numerals designate like parts.

A suitable sash is shown in the drawings for the attachment of the fastener, which is composed of a main section l and side 2, each of which is cut away in parts to provide ribs la and 2, which overlap each other. The side sections 2 are each provided with one or more shallow depressions, in which lock-plates 3, formed substantially as shown in Fig. 7, are fitted and secured. These lock plates are each composed of a horizontal and vertical portion and have a large circular opening et in the Vhorizontal portion, a series of small openings 5, arranged at intervals around the large opening to receive the fastening-screws, and an elongated substantially rectangular opening G in the vertical portion to receive the locking-cam of the sash-key. The main section 1 of the sash shown contains thewindow pane or glass and has one or more open* ings 7 on each side which pass transversely through it. These openings terminate on the inner side in an rregularshaped depression 8, of substantially the forni shown in Fig.' 3, and on the outer side in a circular enlarge ment 9, the circular wallof which is reinforced by the annular metal ring l0.

The sash-key consists of a stein ll, a locking-cam 12, having an opening 13, in which the lower end of the stem is fitted and rigidly secured by the pin la, and a ngerpiece 15, having a fork 16, between the branches of which the iiat outer end 17 of the stem is pivoted by the pintle 18.

The portion of the stein 1l adjacent to its outer end is enlarged, and this enlargement is provided with an annular groove 19.

Two circular supporting-disks 20 are superimposed upon each other and secured in the bottom of the circular enlargement 9 by fastening-screws placed in the openings 21, and each of these disks is provided with a slot 22, sufiioiently wide to permit the disks to slip upon the grooved' portion of the stem and having a semicircular inner termination or wall 22, slightly longer than the circular wall of the grooved portion. These disks are so arranged with respect to each other when in superimposed position that the inner semicircular ends form a substantially circular opening, substantially as shown in Fig. 6, which is slightly larger in circumference than the circular wall of thegroove 19 and closely surrounds said groove, thus securing the sash-key in place.

The finger-piece 15 is beveled or cut away at its outer cud to leave sufficient space for the insertion of a finger-nail, as shown at 15a in Fig. 8.

Four of the lock-plates and four of the sash-keys are preferably employed, and they are so arranged with respect to each other that when the sections of the sash are in assembled position the lower projecting ends of IOO the stems 11 below the cams t in the circular openings 4 in the platesrthus holding the keys in place While being partially rotated or turned to force the locking-cam 12 into the elongated opening 6 in the plate to lock the sections together. y l

As the nger-piece folds down below the surface when not in use, no projecting portion is presented to catch in the clothing desired to lock the sash or sash portions together or to separate them, the stern is turned in the direction required to cause the cam to enter into the slot 6 or to Withdraw it from 4 said slot.

I claim as my invention-a A windoW-sash lock comprising lock-plates and sash-keys secured to the Window-sections; each of said lock-plates having an elongated opening and a circular opening and each sash-key having a projecting stem end seating in the circular opening in one of the lockplates and a cam adapted to flt in the elongated opening.

MARY E. REID.

' Witnesses:

L. M. BILLINGS, G. A. NEUBAUER.

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