US426404A - Fastener for the meeting-rails of sashes - Google Patents

Description

(N M d 1.

0 0 e A. WINTERMUTE & F. HEARNSHAW. FASTENER FOR THE MEETING RAILS 0F SASHES.

No. 426,404. PatentedApr. 22, 1890.

QWMOM $31 M mm imy 7945 Q Ma UNITED STATES PATENT OFFICE.

AQUILA WINTERMUTE AND FRANK HEARNSHAWV, OF CHICAGO, ILLINOIS.

FASTEN ER FOR THE MEETING-RAILS OF SASHES.

SPECIFICATION forming part of Letters Patent No. 426,404, dated April 22, 1890.

Application filed February 26 1890. Serial No. 341,817. (No model.)

To all whom it may concern:

Be it known that we, AQUILA WINTERMUTE and FRANK HEARNSHAW, of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Sash-Fasteners, of which the following is a specification.

The object of our invention is to provide a fastener which shall be automatic in its action and shall be strong and cheap, being produced almost entirely by casting with a minimum of machine-Work.

A further object of ourinvention is to construct the fastener so that it may be secured on the strongest part of the sash, and hence be less liable to be wrenched off.

In the accompanying drawings, Figure 1 is a perspective View of the fastener and a por tion of the sashes to which it is secured. Fig. 2 is a horizontal section on line a 00, Fig. 1. Fig. 3 is a rear view of the part of the faston or which is secured to the upper sash. Fig. 4 is a front View of the same, showing the manner of placing the latch in position, and also.

showing the mode of securing the spring.

A is the plate which is secured to the frame of the upper sash. As shown, it is secured to the left-hand stile.

B is the plate which is secured to the top rail of the lower sash.

G is a swinging latch, which is pivoted in the lugs a on the plate A. The catch 0 is notched at its lower edge to accommodate a projection 12 011 the lower plate B.

s is a spiral spring, which impinges on-the latch O and tends to throw itout over the plate B and lock the two sashes together. It encircles a pin 1; in the lugs a a, being thus held in place.

Secured to plate A is a dog D, which is adapted to swing over the catch 0 when it is folded back, so as to prevent its engagement with the plate B. The dog D is operated by a projection a upon the plate B, so that when the lower sash is raised it is moved over into engagement with the latch C, retaining it in place until the sash is lowered again, when the projection a strikes against the tongue cl of the dog D, thereby freeing it from the catch 0. The latter, impelled by the spring 5, then swings over the projection l) of the plate B, the two sashes being thus locked together.

It is obvious from an inspection of Fig. 1 that the dog D cannot swing fully over the catch 0 until the lower sash has been raised slightly, and in order to obviate the necessity of holding the catch 0 with the hand until the lower sash has been raised we provide the auxiliary dog 6. perpendicular position, as shown in Fig. 1. WVhen the catch 0 is swung back, the location of the dog e is such that it may conveniently be pushed by the thumb or finger into the position shown in dotted lines in Fig. 1 and designated by the letter 6'. "When in this position, it holds the catch 0 until the dog or detent D engages with it. The dog or detent D then strikes against the dog 6, so as to restore the latter to its original position free from the catch 0. Theletters G D designate the catch 0 and dog or detent D when they are swung back into their position shown in dotted lines.

The manner of assembling the parts of the fastener so as to avoid machinework is shown in Fig. 4. The catch 0 has two upwardlyprojecting pintles c c. The plate A has lugs 61. a a cast upon it, as heretofore described. At the bottom of plate A is a ledge A which extends under the lugs a a and at the lower edge of the catch 0, immediately beneath the pintle o, a notch o is formed. The notch 0 allows the pintles c to drop below the lugs a a when the catch is in its extreme left-hand posit-ion, as shown in said Fig. 4:, so that the pintles may be inserted in said lugs; but when swung over to the position that it assumes in actual use the ledge A prevents the catch 0 from dropping low enough to become disengaged from the lugs a a Before inserting the catch 0 on the plate A the spring 3 is placed in position between the lugs a a and the pin 11 is passed through all three, and the catch Ois then inserted, thereby securing the pin 1) in place.

As the part-sA B O D can be formed ready for assembling by casting, the only machine work necessary in finishing is to drill the rivetholes for the dogs D and e, and the catch can thus be produced very cheaply. To prevent the fastener from being loosened by a knife- This ordinarily hangs in a blade or other instrument inserted from the outside, We prefer to make the adjacent edges of the plates A and B of a serrated or waved form, as shown in Fig. 1.

Although We have shown the fastener as applied to the stile of the upper sash, it can be, if preferred, fastened to themiddle bar of the upper sash,if one exists; but We prefer to fasten it to the stile at the side, for the reason that it is stronger.

We claim 1. The combination, in a sash-fastener, of a spring-actuated catch pivoted on a vertical axis,a detent for said catch,and a projection carried by the lower sash and adapted to operate said detent, substantially as described.

2. The combination, in a sash-fastener, of a spring-actuated catch pivoted on a vertical axis, a detent for said catch, a projection carried by the lower sash and adapted to operate said detent, and an auxiliary dog adapted to engage with said catch at the will of the operator and to be released by the engagement of the detent with the catch, substantially as described.

The combination,in a sash-fastener, of the plate A, having lugs a a and a ledge A at its lower edge, with a latch 0, having pintles c 0, adapted to enter said lugs and notched beneath said pintles, substantially as and for AQUILA WINTERMUTE. FRANK HEARNSHAVV.

Witnesses:

IRWIN VEEDER, P. H. T. MASON.

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