US2356427A - Sash lock - Google Patents

Description

Aug. 22, 1944. c, A. FREssNALl.

SASH LOCK Filed De. 26. 1942 Patented Aug. 22., 1944 SASH LOCK I 1 oharlesmrr'essau, Elkhart, Ina., assignor to the Adlake Company, Chicago, Ill., a corporation ofI Illinois l Application' December 26, 194,2, Serial No. 470,170

l (ci. .cs2- 204) 6 Claims.

This inventionv has to do with windows of the type having upper and lower sash, one of which is vertically slidable with respect to the other to open the window, and is particularly concerned with the locking meansemployed for preventing the Window from being opened from the outside.

The locking means heretofore employed for this purpose have ordinarily' been mounted on the meeting rails of the sash, in a conspicuous and obstructive position, and have been rather costly to manufacture and install.

Theobject of the present invention is to provide an improved form of sash lock which is exceedingly inexpensive to manufacture and install, .is pleasingin appearance, is inconspicuously located, and instead` of being mounted on the meeting rails is carried entirely by the removable glazing bead associated with one of the side rails of the upper sash.

lWhile the foregoingstatements are indicative vin a general way of the nature of the invention, other more specific objects and advantages will be apparent to those `skilled in the art upon a full understanding of the construction, arrangement and operation of the improved sash lock.

A preferred embodiment of the invention is presented herein vby way of exempliication, but it will of course be appreciated that the inven- -tion is susceptible of incorporation in other structurally modified forms coming equally within the spirit of the invention and rthe scope of the appended claims.

In the accompanying drawing:

Fig. l is a fragmentary perspective View of a double-hung window equipped with the improved sash lock;

Fig. 2 is a fragmentary face View of the corner of the upper sash in which the lock is located, showing the lock in its operative position;

Fig. 3 is a vertical section, taken on the line 3-3 of Fig. 2;

Fig. 4 is a side view of the one-piece locking member, removed from the glazing bead;

Fig. 5 is a top view of the locking member; and

Fig. 6 is a side View of the leaf spring used with the locking member.

The drawing shows a double-hung window having a vertically slidable upper sash IIJ and a vertically slidable lower sash II. The side rails I2 of the upper sash I0 are provided on their inner sides with hollow glazing beads I3 which are detachably secured to the side rails by screws I4.

The improved locking means-which may be is a small one-piece member which is'characterized by a vertically extending stem portion I5, a

horizontally projecting nose portion I6 at the base of the stem portion, and a vertically extending handle portion I'I above the free end of the nose portion. Y

This locking member may be quickly applied to the window, ready for use, by merely removing one of the beads I3, cutting o-i or notchingfout a short section from the lower end of the bead corresponding to the height of the nose portion I6 at the base of the stem portion I5, placing the :stem portion I5 in the openingin the lower end of the bead, along` with a small slightly bowed leaf spring I8',fand replacing the bead.

The stem portion I5 'is ofV generally cylindrical form and is slightly smaller than thehollow in# terior of the bead, in...order to turn freely but snugly in the same, and is flattened on two surfaces I9 and 2l) at right angles to each other whereby to be engaged and yieldingly held against turning by the spring I8. The springf I8 tends to hold the stem portion I5 with the free end of the nose portion I6 either (l) projecting at right angles to the plane of the sash in a position overlying the upper surface of the 'meeting rail 2I of the lower sash (as shown in full lines in Fig. 1)

or (2) projecting sidewise in an out-of-the-way position over the upper surface of the meeting rail 22 of the upper sash (as shown in dot-dash lines in Fig. l). The spring I8, disposed along- Vside the stem portion I5, is held against turning with the stem portion by reason of its engagement with intertting surfaces on the inside of the bead.

The lock may be located immediately above the upper surface of the meeting rail 2| of the lower sash, as shown in the drawing; or it may be .located any desired distance above said upper surface, to permit the window to be opened a limited amount for ventilation with the lock in its operative position; or two of the locks may be employed, in both of the above described locations. When it is desired to locate the lock in vertically spaced relation to the upper surface of the meeting rail 2| of the lower sash, the glazing bead is cut in two at the proper height and a short section removed to accommodate the base of the nose portion I6, after which both parts of the bead are replaced, with the stem portion I5 of the lock telescoped within the upper part. When the lock is used in such an intermediate position, it may be provided, if desired, with an additional downwardly extending stem located at either or both sides of the upper sashportion, similar to and in axial alignment with the upwardly extending stem portion I5, for insertion within the upper end of the part of the beading directly beneath the same.

While the lock is illustrated in the drawing as applied to a window of the well known doublehung typein which the upper sash as well as the lower sash is vertically movable-it will of course be appreciated that the lock is equally applicable to a window in which the upper Sash is iixed and the lower sash movable, or vice versa, and also in which several sash, are present, one above the other, with one or more of the sash fixed and the remaining movable, or al1 movable.

I claim:

1. In a window of the type having an upper sash and a vertically movable lower sash, a glazing bead removably associated with one of the side rails of the upper sash on the inside ofthe ed in the lower open end of the hollow bead, and having a horizontally extending nose portion which is rotatable about the axis of the stem portion from a locking position substantially at right angles to the plane of the sash to an inoperative position substantiallyparallel to such plane, said stem portion being of generally cylindrical form and being provided with one or more flattened areas, and a bowed leaf spring positioned in the end of the bead alongside the stem portion for indexing engagement with the flat area or areas for holding the lock in either its latter, and a locking member carried by the bead for abutment with the top rail of the lower sash,

`said locking member having a vertically extending stem portion which is pivotally mounted in a vertically elongated recess `in the bead, and havinga horizontally extending nose portion which is lrotatable about the axis of the stem portion from a locking position substantially at right angles tothe plane of the sash to an inoperative position substantially parallel to such plane.

2. In a window of the type having an .upper sash and a vertically movable lower sash, a glazing bead removably associated with one of the side rails of the upper sash on the inside of the latter, and a locking member carried by the bead Afor abutment with the top rail of the lower sash,

said locking member having a vertically extend- 1 ing stem portion which is pivotally mounted in a 'vertically elongated recess in the bead, and having a horizontally extending nose portion which `is rotatable about the axis of the stem portion from a locking position substantially at right angles to the plane ofthe sash to an inoperative position substantially parallel to such plane, said nose portion being extended upwardly exteriorly of the bead to provide a Wing-like linger piece for use in moving the nose portion.

3. In a window of the type having an upper sash and a vertically movable lower sash, a hollow glazing bead removably associated with one of the side rails of the upper sash on the inside of the latter, and a locking member carried by the bead for abutment'I with the top rail of the lower sash, said locking member having an upwardly extending stem portion which is pivotally mountlocking position or its inoperative position.

4. In a window of the type having an upper sash and a vertically movable lower sash, a glazing bead removably associated with one of the side rails of the'upper sash on the inside of the latter, and a lockingmember which is rotatable about the longitudinal axis of the bead and is provided with a journaling portion which is telescopically associated with the bead, said locking member also having a radially projecting portion which when ,turned into one position is adapted to abut with the top rail of the lower sash.

5. In a window of the type having an upper sash and a vertically movable lower sash, a glazing Ybead removably associated with one of the side rails of the upper sash on the inside of the latter, and a locking member associated with the glazing bead, said locking member having a mounting portion which is telescopically associated with a portion of the bead within the contour of the latter, and said locking member having a portion which projects laterally from the mountingportion for engagement with the top rail of the lower sash to prevent the window from being opened.

6. In a window having upper and lower sash, one of which is vertically slidable with respect t0 the other, the combination with a glazing bead removably associated with one of the side rails of one of the sash on the inside of the latter of a locking member carried by the glazing bead, one end of said bead terminating short of the corresponding end of said side rail, whereby to providea gap between that end of said bead and the corresponding end of the side rail, and a locking member positioned in said gap and rotatably connected with said bead, said locking member being provided with a projecting portion for abutment with the other sash. Y

CHARLES A. PRESSALL.

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