US702700A - Sash-locking mechanism. - Google Patents

Description

No.-702,700. Patented lune I7, |902.

V J.A. BROOKS & E. E.. WHITTAKER. l

VsAsH LocKme mEcHANlsM.

(Application filed M'ar. 17, 1902.)

(No Model.)

ATTORNEYS,

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UNITED 4STATES PATENT OFFICE.y

JOSEPH A. BROOKS AND EDWARD E. WHITTAKER, OF PATERSON, N'EV JERSEY.

sAsH-LOOKING MEOHANISM.

SPECIFICATION forming part of Letters Patent No. 702,700, dated J' une.17, 1902.

Appncann'ie'd March 17, 1902. sesamo. 98,514. (Nomad.)

To @ZZ whom it mag/concern:

Be it known that we, JOSEPH A.' BROOKS and EDWARD E. WHITTAKER, citizens of the United States, residing-,inPatersom in the county of Passaic andState'of New Jersey, have invented certain new and useful Improvements in -Sash-Locking Mechanisms; and we do hereby declare the following to be a full, clear, and exaetdeseription of the same.

This invention relates to locking devices for window-sashes; audit has reference particularly to mechanism of this nature in which a toothed rackV is employed, so that the sash may be secured at any desired position in the window-frame.

The principal object of the invention is to provide a mechanism of this nature whereby the upper sash may be left slightly down from the top at night, so as to permit ventilation of the apartment, and yet be locked against further opening from the outside.

A further object of the invention is to so construct the locking mechanism that it will lock the lower sashalsowhen the said sash is in its closed position.

The invention consists in the improved sash-locking meansloonstruoted substantially as will be hereinafter described, and nally embodied in thel clauses of the claim.

In the accompanying drawings, Figure l shows our invention applied to the ordinary window. Fig. 2. is a slightly-enlarged horizontal section, taken just above theupper.

sash, of what islshown in Fig. l, portions of the lower sash being shown in section to fully Fig.` 3 is a side view of the window-frame removed fromV disclose details of the invention.

the walls of the building-and showing ourinvention in position thereinfand Figs. 4 and 5 illustrate details of the invention.

In the side rails of the upper one of two sa'shes @,arranged to move vertically,as usual,-

is pivoted at its lower end, as atj, extending vertically in the frame f, while the lever 't' is p'ivoted between its ends, vas .at la, one end Overlapping the dog h, being against the outer face of the saine. Al plate-spring Z, disposed opposite the inside face of the dog h and tending to push the' samel outwardly (by bearing with its upper end against said dog)is held in place by being passed between two pins m, which traverse the vertical portion of the opening g of the frame f, the lower end of the spring being bent outwardly, extending between the lower end of the dog and the adjoining wall of the frame. The spring therefore acts to keep the dog disengaged from the rack, opposite to which, it should be remarked, said dog is disposed.

In the parting-railof the lower sash a are i arranged slide-rods n, each lof `which is adapted at its Outer end, when'the sash is lowered, to bear against the rfree end of the lever 'L' to push it outwardly. The innereuds of these rods have opposed heads 0,"betwe'en which is a cam p, carried by a spindle g. It should be remarked that the spindle has bearings in a casing 1', which is set in the parting-rail of thelower sashandwhich has a cover s, secured in place by 'screws t. The rods 'n project through the side walls of this` casing. Between the said side walls of the casing and the heads of the rods are interposed spiralsprings u, which are coiled. about the rods and tend to press their heads against the cam p.

o issimply a crank carried by the spindle for turning the cam p. l.

.Whenit is desired to lock-the upper sash open at any1 desired position, the lower sash is first arranged at its! closed position, so that the slide-rods will be 'aline'd with the ylevers z'. By means of the crank u the cam p is then turned, causing the-.slide-rods'to inlove outwardly and turn the'le'vers 't' on their pivots. The ends of these levers Awhich'areopposed' to the dogs are thus caused to move inwardly,

pressing the dogs against theracks c. In` this position itv will be impossible to lower the upper sash from the outside.` If the 1evers 1l are so constructed that, as shown in the drawings, their free ends will set back considerably into thefram'e f when moved IOO by the slide-rods n they will form, with the frame, recesses, as at fw, Fig. 2, in which the ends of the slide-rods may take. Thus Will be formed between the framef and the sliderods locking means for the lower sash.

Having thus fully described our invention, what we claim as new, and desire 'ro secu re by Letters Patent, :is-

1. In a sash-locking' mechanism, the combination of the Window-frame,sashes arranged to slide therein, a rack carried by one of said sashes, a dog adapted to engage the rack and pivotally arranged in said frame, and means for actuating said dog, a portion of said means being carried by the other sash, substantially as described'.

2. In a sash-locking mechanism, the combination ofthe wi nd oW-frame,sashes arranged to slide therein, a dog pivoted in the frame and adapted to engage one of said sashes, a lever also pivoted in said frame and engaging said dog, a sliderod arranged in one of said sashes and engaging said lever, and means for actuating said slide-rod, substantially as described.

3. In a sash-locking mechanism, the combination, with the Window-frame, of sashes arranged to slide therein, a dog pivoted in said frame and adapted to engage one of said sashes, a lever engaging said dog, a sliderod arranged in the other sash and adapted to register with and actuate said lever, and means for actuating said slide-rod, said Window-f rame having a recess adapted to receive the end of said slide-rod to lock the' sash carrying` said slide-rod, substantially as described.

In Witness whereof we have hereunto set our hands in presence of two Witnesses.

JOSEPH A. BROOKS. EDWARD E. VVHITTAKERA

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