US2142907A - Storm sash fastener - Google Patents

Description

Patented Jan. 3, 1939 UNITED STATES PATENT OFFICE 1 Claim.

This invention appertains to new and useful improvements in storm sash fasteners especially adapted for use on easement windows.

The principal object of the present invention is to provide a fastener for storm sashes on casement windows which will permit the actuation of the storm sash along with the easement window, allowing both to be moved in connected relation.

l0 Another important object of the invention is to provide a fastener whereby the storm sash of a .easement window can be detachably connected with the easement window and caused to move incident thereto.

'I'hese and various other important objects and advantages of the invention will become apparent to the reader of the following specication.

In the drawings:-

Figure 1 represents a fragmentary horizontal sectional view through a easement window with the storm window fastened thereto, showing the sashes ln open position.

Figure 2 represents a fragmentary horizontal sectional view showing the storm sash and casement window in closed position and interconnected.

Figure 3 is a fragmentary vertical sectional view through the fastened portion of the sashes.

Figure 4 is a sectional view substantially on 80 line 4--4 of Figure 1.

Figure 5 is a fragmentary sectional View of the knob and shank partly in section.

Figure 6 is a cross sectional view of the shank.

Figure '7 is a fragmentary elevational view of the key head.

Referring to the drawings wherein like numerals designate like parts, it can be seen that numeral 5 represents the frame of the window, and numeral 6 represents the frame for the storm 0 sash. Numeral 'I represents the easement sash, while the numeral B represents the storm sash, these sashes being hinged'as at 9 and I0, respectively.

The Casement sash 1 is provided with a bore 45 II therethrough adjacent the free end thereof through which the shankV or shaft I2 extends. The shank I2 has a knob I3 at one end and this knob bears against the plate I4, which, in turn,

is secured by suitable screws to the inside of the easement sash 'I. A split washer I5 straddles a reduced portion I 5 on the shank I2 and bears against the plate I4 to prevent longitudinal shifting of the shank I2. 5

Numeral I6 denotes the key head which includes the flanges I'I which prevent the key from being pulled through the slot I8 in the plate I9. This plate I9 is secured over the elongated pocket 20 of the storm sash 8 and this key head 10 normally straddles the slot I8. The key head is hollow and has a cross pin 2| therein. The shank I2 is provided with a longitudinally extending slot 22 at its free end and this portion engages into the key head I6 so that the pin 2I will be 15 extendingthrough the slot 22. The plate 23 on the outside of the easement sash 'I prevents displacement of the key from the easement sash 1.

So long as the key head I6 remains in the slot straddling position shown in Figure 3,"the sashes 20 will be connected together. However, if the knob I3 is given a quarter turn, the flanges Il will be aligned with the slot I8 and the sashes can then be disconnected.

While the foregoing specification sets forth 25 the invention in specific terms, it is to be understood that numerous changes in the shape, size and materials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter. 30

Having thus described the invention, what is claimed as new is:-

In a storm sash fastener, a shaft having an operating knob at its inner end, a key-head provided with lateral flanges for engagement with a slotted locking plate carried by the storm sash, said key-head being provided with a hollow member inwardly of said lateral flanges. said hollow member having the adjacent end of the shaft engaged therein, a pin extending transversely in the hollow member and a longitudinal slot in the outer end of the shaft engaged with said pin to secure the key head to the shank for rotation therewith, means carried by the shaft securing the same against longitudinal movement and means carried by the key head securing said MARTIN F. MAINS.

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