US853020A - Window-fastener. - Google Patents

Description

PATENTED MAY '7, 19 07.

J. w. LYON. WINDOW FASTENER. AIIBPLIOA-TION FILED AUG.29. 1906.

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' plate or casing and the locking device.

' the same.

JAMES W. LYON, OF EVANSTON, ILLINOIS.

WlNDOW-FASTEN ER.

Specification of Letters Patent.

Patented May 7, 1907.

Application filed August 29, 1906. Serial No. 332,479.

To all whom it'may concern.-

Be it known that I, JAMES WV. LYON, a citizen of the United States, residing at Evanston, in the county of Cook and State of Illinois, have invented new and useful Improvements in WVindow-Fasteners, of which the following is a specification.

This invention is a device for holding the lower sash of a window at any desired point and also for securing and locking the two sashes together in any desired position.

The object of the invention is to form an improved device having a detent to lock the two sashes and another to engage the win dow casing, and means to release both simultaneously.

In the drawings, Figure 1 is a perspective view of the device. Fig. 2 is an elevation of Figs. 3 and 4 are sections at a right angle to each other, showing the detents engaged. Fig. 5 is a plan of the base Fig. 6 is a side view of the releasing cam lever.

Referring particularly to the drawings, -12 and 13 indicate the upper and lower sashes of a window, 14 is the side of the window casing; and lei the parting bead.

The fastener has a base plate 15 with a flange 15 at the inner edge which is let into the top rail of the lower sash. Integral with the plate is a'circular casing 16 having openings 16 and 16 in its wall, at a right an gle to each other and provided with ears 16 at the sides. Mounted in these openings are catches or detents 17 and 17 each having an outer tapered arm 17 and an inner oblique projection 17 These catches are mounted on pivot pins 18 between the ears 16, and swing to or from engagement with the racks.

19 are springs which tend to keep the catches in their lower or engaged position.

A cam device for operating the catches consists of a circular plate 2O provided with a handle 20 and a central sleeve 20 preferably screw-threaded and mounted on a screw stud 21, and with a segmental circumferential cam 22 and a segmental bearing flange 23.

24 is a notched or corrugated strip forming a rack on the side of the window frame, which rack is engaged by the catch 17 and the lower sash held so that it cannot be raised. The catch 17 engages a corrugated strip or rack 24? on the stile of the upper sash.

The cam 22 engages and bears down on the rear end of the catches 17 and 17 By turning the said cam plate the inner ends of the catches are depressed and the outer ends raised or disengaged from the racks, or by a reverse movement the catches will be low ered by their springs and engaged with the racks.

To look the catch I provide a plate 25 pivoted on the stud 21. and having a finger'25 within the casing 16 and hand piece 25 projecting forwardly through a slot 16 in the casing. 25 will engage under the heel of the catch 17, as shown in Fig. 4, and prevent it being moved, thus also locking both sashes together.

The pivot stud 21 instead of being screwthreaded may simply be a plain pin or stud provided with a cap or rivet to hold the cam piece, as the cam will work on the catches without the stud being screw-threaded.

The catch or detent 17 will prevent the lower sash being raised. In order to prevent the lower sash being lowered from a raised position, I provide a supplemental catch 30, at the side of the casing, pivoted at its upper end to a lug 31 and having a point 32 at its lower end which will engage in a rack 33 secured to the parting bead 14. This catch has a laterally-projecting finger which extends in position to be struck by a lug 17 Y on the catch 17, when said catch is raised. The catch 30 is normally held in engagement with its rack by a spring 34 behind the same. When by movement of the cam plate the catch 17 is lifted and disengaged, its lug 17 Y comes against the finger 30 and swings the catch 30 back so that its point 32 is disengaged from the rack 33, and thus renders the sash free for either upward or downward movement.

It will be seen by the above description that the device provides means for locking the two sashes together and also for then fastening them in any desired position within 10:

the casing, and the catches are all manipulated by a single movement of the cam device.

I claim:

1. A sash fastener comprising a base plate having upwardly projecting ears and a stud, a catch pivoted between the. ears and ar ranged to swing up and down and having its outer end projecting beyond the plate to engage an adjacent sash or casing, and a cam 110 By turning the said plate the finger.

plate rotatable on the stud, the inner end of the catch projecting under the cam which bears thereon.

2. A sash fastener comprising a base plate having an upwardly projecting stud, a cam rotatable on the stud and having its cam surface on its under side, a catch pivoted on the base plate and having an outer engaging end and an inner end projecting under the cam surface, and a turning plate on the stud under the cam, having a projection which may be turned under the inner end of the catch, to lock it against movement.

3. A sash fastener comprising a base plate, a pair of pivoted catches thereon extending at a right angle to each other in position to engage at their outer ends an adjacent sash and window casing respectively, and a cam pivoted on the base plate and under which the inner ends of the catches extend.

4. A sash fastener comprising a base plate, a pivoted catch thereon arranged to swing up and down and having an outer end extending beyond the edge of the plate in position to engage an adjacent casing and prevent movement in one direction, means to depress the inner end to release the catch, and another catch pivotally mounted on the plate and extendingbeside the said catch at a difierent angle and adapted to engage the casing and prevent movement in the opposite direction and having a projection arranged to be struck by the said catch, 'to simultaneously release both.

5. A sash fastener comprising a base plate having a circular casing thereon with a stud at the center, the casing having openings at a right angle in its sides, a pivoted catch 111 each opening, extending at' their outer ends beyond the edges of the plate and at their inner ends within the casing, a cam on the stud, having its cam surface on the under side bearing on the inner ends of the catches, and a turning locking plate on the stud under the cam and having a projection which may be moved under the inner end ofa catch to prevent depression thereof and a finger piece extending through a slot in said casing.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JAMES W.- LYON.

Witnesses:

SIGNA FELrsKoG, H. G. BATOHELOR.

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