US1061283A - Sash-fastener. - Google Patents

Description

J. C. GRIFFIN.

SASH FASTBNBR.

APPLICATION FILED SEPT.25,1911.

Patented May 13, 1913.

JAMES C. GRIFFIN, OF ERIE, PENNSYLVANIA,

ING COMPANY, OF ERIE, PENNSYLVANIA,

ASSIGNOR TO GRIFFIN MANUFACTUR- A CORPORATION OF PENNSYLVANIA.

SABH-FAS'IENEE.

Specification of Letters Patent. Application filed September as, 1911. Serial No. 651,04'2.

Patented May 13, 1913.

To all whom it may concern:

Be it known that I, J AMES C. Gmrrm, a citizen of the United States, residing at Erie, in the county of Erie and State of Pennsylvania, have invented new and useful lmlprove cuts in Sash-Fasteners, of which t e folliiwing is a specification.

This invention relates to sash fasteners and consists in certain improvements in the construction thereof as will be hereinafter fully described and pointed out in the claim.

The sash fastener is particularly desi nod for swinging windows especiall suc as swin on a horizontal axis. Witi windows of thls class the ordinary catch is apt to be strained or broken where the window is ac cidentally dropped.

The principal object of the present invention is to form a catch wherein the 'latch can be yieldin 1 locked in different positions so as to ho it in locked position when desired and out of position to be injured by the accidental closing of the window or other device on which it is used.

The invention is illustrated in the accompanying drawings as follows:

Flgure 1 shows a fragment of a window sash and casing with a sash fastener in lace thereon. Fig. 2 a rear view of the atch. Fig. 3 a front elevation of the base plate with the latch removed; Fig. 4a central section through the catch.

1 marks thewindow sash,

lhe base plate 2 of the catch has the usual 0 enings 3 for screws 4 by means of which t e catch is secured to the sash. The latch 5 is pivotally mounted on the base late 2 by means'of the pin 6 which is eaded into the base late. The pin (5 is of slightly greater lengtii than the thickness of the latch 5 and a spring washer 7 is arranged between the pm 6 and the outer surface of the latch 5. This spring washer tends to force the joint surface between the ,washer and latch and the latch and base plate into contact. The base plate has the rojections 9, preferably four of them ormed by striking up the metal from the bottom of the plate, and the latch has the detents 10 arranged to register with the projections. When the latchisin place, these projections and detents register, and the walls and 1 the easplane on their are of such a slant that with a swinging pressure on the latch, the latch yields. lhe spring washer 7 allows a sutiicieutupward movement of the latch for this purpose. The detents and projections as shown in Fig. 4 are somewhat exaggerated over actual practice to better show construction. By making the detents in series and equidistant apart, the latch may be swung to ditierent position and yieldingly locked in those positions by these variations in the joint surfaces.

In Fig. 1 I have shown a hook 11 arranged to operate with the latch 5. It is provided with the base plate 12, with the opcnin s 13 through which the screws 14 may as passed for securing the plate to the ('using.

t will be observed that if the latch 5 is swung to a horizontal position aswith the parts in Fig. 1, it will be locked in that position. If, therefore, the sash l is on a swinging window with a horizontal axis the acci ental dropping of the window will not strain the catch in as much as the catch is locked out of the path of the hook 11. Furthermore, when the latch 5 is in locked position as shown in Fig. 1, it is yieldingly locked in that position so as to prevent its accidental disengagement from the hook.

What I claim as new is In a sash fastener, the combination of a base plate; a (pin secured to the plate and having a hea spaced from the plate; a swinging latch journalcd on the pin and arranged next the plate; and a spring washer arranged on the pin between the head of the pin and the latch and yicldingly pressing the latch a ainst the base plate, said base plate and atch having variations from a 'oint surfaces co-acting to compel an axia movement of the latch against the spring washer as the latch is swung, said variations having slanting surfaces in a circumferential direction.whcreby the latch will yield to circimifercntial pressure to move it to different adjustments.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

JAMES (J. GRIFFIN. Witnesses:

C. D. Hmnr, B. M. llau'ramn.

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