US1695108A - Window fastener - Google Patents

Description

Patented Dec. 11, 1928 UNITED STATES PATENT, O-FFZICE.

LOUIS FREDERICK KLOOZ AND MANNING F. HATCHER, OF PITTSBURGH, PENN- SYLVANIA.

FINIDO'W FASTENER Application filed November 10,1926. Serial No. 147,429.

The principal object of this invention is to provide sliding window sashes with fastening means which will couple the upper and lower sashes together with the upper sash in any position of adjustment, and which will prevent opening movement of either sash when so coupled together.

With this and other equally important objects in view, as will hereinafter be pointed out, reference will be had to the accompanying drawing forming a part. of this specification and wherein like reference numerals designate corresponding parts throughout the several views, in which Fig. 1- is a vertical sectional view of a fragment of a window frame and its two sashes, with the invention applied and shown in unfastening position,

Fig. 2 is a front elevation thereof,

Fig. 3 is a perspective view of the fastening element disassembled, and

Fig. 4 is a vertical sectional view through the invention detached from the sash.

In the drawing, reference character 2 designates the window frame provided with the usual ways 3 and 4 for the sliding sashes 5 and 6, and with the usual parting strip 7,

except that the latter is provided with a notch 8 just above the'plane of the meeting rail of the lower sash when the latter is completely lowered. Of course it will be understood that the parts 3, 4, 7 and 8 are duplicated on the other side of the window as is usual. ,Upon the meeting rail of the lower sash. 5 at each side of the window is provided the sash fastening device forming the foundation of this invention, and except for the fact that oneis right handed and the other left handed, their structures are the same, and detailed description of one will suflice for the other. Each fastening device comprises a bearing member 9, formed by doubling a sheet of metal to enfold a rockshaft 10, and having a base 12 and cut-out portion 14; within which latter operated the thumb or finger knob 15. This rock-shaft 10 has its opposite side portions cut away as at 16 leaving a reduced flat web 17 provided with a threaded aperture 18 injwhich threads the stem 19 of the knob 15. A ribbon spring 20 has its free end bearing upon the base 12 and, after bending around the web 17, has

its upper end secured between said knob 15 and web 17, with the knob stem 19 passed 'the upper sash When the device of Fig. 4; is assembled,

one on .each side of the lower sash, the. springs 20 will swing the foot ends 21 through the parting strip notches 8 into biting engagement with the fac of the side rails of the upper sash, thereby fastening to the lower sash and because of the toe ends of the fastening devices coming into engagement with the upper walls of the notches 8, preventing raising of the lower sash. This coupling together of the two sashes will prevent lowering of the upper sash, though it will permit raising of the upper sash at any time to closed position. If the upper sash is somewhat lowered when the two sashes are coupled together, the two sashes cannot be raised as a whole to permit an intruder reaching in beneath the lower sash for any purpose, becausesuch movement of the sashes is prevented by contact of the fastening devices with the upper wall of the notch 8. When it is desired to raise the lowor sash, the operator depresses both knobs 15 thereby swinging the foot ends of the fastener to the -full line position of Fig. 1,

wherein there will be no engagement with the upper wall of the notch by the foot ends 21, and as the lowersash is raised, these foot device will more or less mar the surface of the side rails of the upper sash, but this de facement will be concealed almost entirely by the overlying parting strips 7 and the foot ends 21.

Thus it will be apparent, that the upper sash may be lowered for ventilation, and yet secured against any but closing movement, while the lower sash is secured against any movement, until the fastenings are manually moved to unfastening positions, when both sashes may be moved as in any other window of the same general type. It will also be apparent that the invention can be cheaply made and easily applied, and that it cannot be picked by an intruder from the outside, and since the only alteration necessary to 2 1,695,108 be made in a standard window is the notchgage a surface of the upper sash, and the ing of the parting strips 7, the invention can portion of this surface engaged by the milled be a plied'to old as well as to new windows. ace being entirely concealed by the parting at is claimed is strip, with the exception of the portion vis- 6 1. 'The combination with upper and lower ible through said notch, and a handle consliding window sashes and a parting strip nected to the latching member. v having a notch about midway of its ength, 2; A combination as claimed in claim 1, of a bearing member mounted on the'upper in which the first mentioned arm of said rail of the lower sash, a substantially L- latching member is provided'with an inter- 10 sha ed latching member having an arm pivmediate portion arranged within the bearota ly mounted in the bearing member for ing and a leaf spring'having one of its ends movement about a horizontal axis, and havsecured to' said intermediate portion and its I ing another arm arranged beyond one end of other end contacting with the bearing for said bearing member and adapted to slide urging the latching member into securing 15 along the parting strip, or to extend through position.

the notch of the latter, to engage one wall In testimony whereof .we afiix our signaof said notch for preventing the lower sash tures. being raised, the extremity of said last men- LOUIS FREDERICK KLOOZ.

tioned arm being milled to wedgingly en- F. HATCH ER.

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