US1748230A - Window fastener - Google Patents

Description

Patented Feb. 275, i 1930 -s FRANCES KEATING, or sronmvn,y WASHINGTON WINDOW FASTENER i Application fixed February 4,1929. serial No. 337,447;

My present invention relates to improve- Aments inwindow fasteners of the type especially designed for use with the upper and vflower sashes of the ordinary slide window- 5' sashes. vThe primary object of the invention is the kprovision of fastening devices that are capable of locking the sashes in closed position, or in partly opened vpositions for ventilating a room, and at the same time insure against intrusion from the exterior ofa room and prevent' access to the fasteners by unauthorizfed persons. To these ends the Afasteners for the two sashes comprise guide rods secured rigidly on and movable with the issashes, and a stationary housing with spring pressed, automatically operating latches or pawls for co-action with the rods, together with releasing means involving the use of a key, whereby the sashes may be unfastened 2o from the interior of a room. The invention consists in certain novel combinations and arrangements of parts involving the fasteners and their releasing devices as will hereinafter be more fully set forth and claimed.

if-"a5 'In the accompanying drawings I have illustrated one complete example of the physical embodiment of my invention wherein the p parts are combinedy and arranged according A to the best mode I have thus far devised for i 3o the practical application of the principles n of my invention.

. Figure 1 is a broken,y perspective view showing the window fastener with a key therein,

l and showing also the-relation of the guide rods and sashes to the fastening devices.

Figure 2 is a view of the lock-housing with y the cover plate removed showing the operating parts in its interior. A

, Figure 3 1s a view 1n elevation, from the interiorkof a room, showing the window fastener in use with both sashes closed.

Figure 4 is a perspective View of one of 1 the spreader or spacing blocks, forming the key-guard, and located in the casing 1or, hous- '45 ing for the operating parts of the fastener.

In order thatthe'general arrangement and relation of parts'may readily be understood I have illustrated the usual rectangular window frame 1 with the upper and lower slid- 59 y ing sashes 2 and 3 respectively. `The fastening devices are located at the inner side of the window, and are accessible only from the interior of the room.

g The upper sash is provided with a vertically arr'anged'guide rod 4 which has a top angular bar 5 that is fastened at 6 rigidly to the upper sash, in such manner as to space the vertical rod a. slight distance from the sash. At suitable intervalsy a plurality of notches 7 are fashioned in the rod, and it will be understood that the rigidly attached rod moves with'the sash when it islowered or raised.

The lower sash also has a guide rod, as 8,

fashioned with a bottom angular bar 9 that is secured at 9 to the lower end of the lower sash, and this rod has spaced notches 10 similar to the notches 7.

4 On the window frame,about midway its height, I attach the metal casing 11, which has attaching ianges 12 at its top and bottom, and'these iianges are secured by screws 13 to the windowframe 1.

The casing as shown is fashioned with top and bottom plates 14 perforated to receive the free ends of the upper rod 4 and the lower rod 8, the rods at all times being located in the perforated Vwalls and guided, as they are moved with, their respective sashes, by the 'pair' of spaced guide plates 14.y 'Ihusr the sashe's, in Figure 1 are vfastened in close-d position with both ends of the rods secured in the perforated guide walls or plates of the casing, and it will be understood that the upper sash ,may be lowered, and the lower sash raised, to'des'ired positions, as for vent-ilation, and therelocked in connectionA with the guide rods.

The fastening devices that co-'a'ctwith the Y' action with the notched rods.

At( the left Side of the casing, in Figure 3, a removable cover plate 22l is'secured on the casing, as by screws 23, and access to the interior of the casing is had at this left side.

The cover plate and the main plate of the casing are slotted or slitted, and between these litted or slotted members a pair of blocks 24 and 25 are located, said blocks having attaching lugs or flanges 26 at their opposite ends that are clinched in the slits or slots of the cover plate and main or base the casing. n

These blocks form key-guards andk they are each provided with a key-hole slot 27, which registers with a complementary hole 27 in the cover plate, andan open mortise 28 at one side of the slot, as best seen in Figure 4.

A key 29 is designed to be inserted in either of the key-hole yslots of the guards, and when its angular head is positionedadjacent the mortise 28, it will be apparent that a turn of the key in its guard brings the head of the key into frictional contact with the spring y pressed pawl, l5 or 18. A continued turn of the key forces the pawl out of engagement with the notch in the guide rod, and the window sash and rod are then free to be movedto desired position, until the pawl again engages a notch`v at which time the sash is held stationary. When the key is withdrawn, the spring automatically returns the pawl to position for engagement with a notch.

In Figure 2 another type of releasing device is illustrated', where the pawl 30 is turned or freed against the tension of the spring 31, by turning a shank 32 that is Vsupported A to turn in the cover plate and base plate of the casing. This shank has an eccentric or cam shaped head 33 within the casing. in position Yto" frictionally engage the pawl 30, and a knob 34 on the shank, exterior of the casing may be usedto turn the shank,for releasing thepawl from the notch. 1 f Y Having thus fully described Ymy invention,

what I claim as new and desire to secure by Letters Patent is`zl 1. 'Ihe combination with a slidable sash havingra notched guide rod, of a stationary casing having spaced perforated walls for said rod, a spring pressed pawl pivoted within the casing to engage the notched rod, a keyguard within the casing adjacent the pawl, and saidvguard having a key-hole slot and mortise to accommodate a headed-key.

Y 2.,A The combination with a slidable sash having a notchedguide rod, of a stationaryV plate of casing having spacedperforated guide walls Y for the rod, a pivoted pawl within the casingr for engagement with the notched rod, a

spring anchored in the casing andnormally K holding the pawl in position for engagement with the notched rod, a key-guard secured in ythe casing and adapted-to receive a headed-y key, and said guard having a key-hole slot and mortise opening adjacent the pawl.

In testimony whereof I afX my signature.

FRANCES marine.y y

Images