US1548567A - Window lift and lock - Google Patents

Description

. Aug. 4, 1925. ,548,567

E. s. vviLLl/vlsv wINDow IFT AND LOCK Filed Deo. 5. 1924 BY v ATTORNEYS.

Patented Aug. 4, 1925.

UNITED s'rnras EDMUND S. WILLIAMS, OF LONG ISLAND CITY, NEW YORK.

WINDOW LIFT AND LOCK.

Application lled December To all whom it may concern:

Be it known that EDMUND S. WILLiAns,

. citizen of the United lStates, and resident of dow Lifts and Locks, of which the follow-` ing is a specification.

This invention lrelates to a sash operator and holder and an object of the invention is to provide a novel and simple device for raising or lowering a sash and for holding and locking said sash in such open or closed position.

A furtherobject is to provide a device as stated which will be adapted to serve as a sash operating mechanism to aprplyV leverageupon a sash to readily raise or lower the same, should it have a tendency to stick in its frame, the device when utilized as operating mechanism being adapted to force a sash step by step to open or closed position and to hold the sash in any adjusted position.V To the accomplishment of this last mentioned object, I provide an operati c ing lever having a reversible pawl adapted to rotate a toothed wheel in either direction at will and to hold said toothed wheelv in each of its .rotated 4positions against the movement of the sash tending to rotate said toothed wheel.

With the above and other objects in view,

the invention comprises the construction,

arrangement and combination of parts as now to be fully described and as hereinafter to be specifically claimed, it being understood that the disclosure herein is merely illustrative, slight changes in details of corr struction and arrangement of parts being permissible so long as within the scope of the appended claims.

In the accompanying drawing forming a part of this specification,

Fig. 1 is an elevational view showing a sash-frame and a sash in which the features of the invention are incorporated;

Fig. 2 is a vertical sectional view, on an enlarged scale, of the device` and its rack;

Fig. 3 is a sectional View taken on line 3-3 in Fig. 2, looking in the direction of the arrows; and

Fig. 4 is a sectional view taken on line 4 4 in Fig. 2, looking in the direction of' the arrows.

With respect to the drawing, l() represents a windowat'rame and 11 and 12 repres Serial' No. 753,716.

sent a lower and upper sash in said frame. The improved sash holder, denoted generally at 18, is shown applied at the right hand side of the lower sash 11, although a like holder could be applied at the lett hand side. and similar holders could be applied to the upper sash 12.

Oi the sash holder, 14 is a rack secured to the window casing in any convenient manner, as at 15, and 16 is a bracket securedto the sash 11 as at 17, the bracket having a stud 18 with toothed wheel 19 meshing with the rack 14. Numeral 2O represents arc shaped iins, integral with the bracket 16 as disclosed, and serving` as guards for the toothed wheel.

Numeral 21 denotes an operatinglever pivoted upon the stud 16 and having a head 22 with arc shaped flange 23 adapted to serve with the arc shaped fins 20 as a housing for the toothed wheel, the flange 23 being adapted to ride over the tins 20 when the lever is rotated, as will be understood.

In the handle portion of the lever and between longitudinal flanges 24 upon the side edges of the handle is a channel in which a pawl 27 is slidably mounted. In the channel of the handle and between said flanges 24 are provided bridge portions 25 having aligned holes 26 to receive the pawl 27 adapted to have rotary and longitudinal sliding movement in the bridge. At one end of the pawl is a linger piece 28 just beyond the handle oi the lever and the other end of the pawl is adapted to engage the toothed wheel 19, a coil spring' 29 is mounted upon the pawl and bears at one end against a pin 30 in the pawl and at the other end against the bridge 25 adj-acent the handle serving to normally hold the pawl in engagement with teeth of the toothed wheel.

It will be noted that the end of the pawl, denoted 31, in engagement with the toothed wheel is constructed to allow turning of the toothed wheel in one direction (counterclockwise as disclosed in Fig. 2), but to lock against a tooth of said toothed wheel when attempt is made to turn said wheel in opposite direction (clockwise in said Fig. 2). In the end of the handle spaced from the toothed wheel and rack, are oppositely disposed depressions 32 in one of which the finger piece 28 is adapted to lie. As shown in said Fig. 2, the handle is in the lower depression 32, locking the pawl against rotation. Clearly, by drawing the handle toward the left, the pawl canbe rotated a half-revolution and the handle allowed to enter the upper depression 32. `Now the end 3l of the pawl will engage the toothed wheel to allow its free turning in clockwise direction and to lock it against counterclockwise rotation. e

The manner in which the sash holder is manipulated is as follows: When it is desired to open the sash as in Fig. L the haudle 28 is turned upwardly as fully set forth. Then the sash can be lifted, the beveled face of the pawl riding over the teeth of the toothed wheel against the action of the coil spring 29. Clearly, the sash will remain in any open position to which adjusted, the straight edge of the pawl engaging atooth of the toothed wheel to sustain the weight of the sash. To inove the sash, then, toward closed position, the pawl is reversed, (returned to its position of Fig. A2), and the sash can be lowered as will be under stood, Then the sash is lowered to closed position as in Fig. 2, it is looked, any tendency to open it being resisted bythe engagement of the straightedge of the pawl with a tooth of the toothed wheel. By with-4 drawing the pawl from thetoothed wheel and holding it witlidi'awn,'the sash can be freely manipulated inl either direction, Then it is desired to use the sash holder as operating mechanism for the sash, the pawl is set to rotate the toothed wheel in def sired direction.` By causing the operating lever to pivot upon the stud, the wheel is rot-ated one or more notches, the movement of the lever beinglliinited by the engagement of the shoulder 26 with the ends of the fins 20. The return of the lever to its original position causes the rounded face of the pawl to ride over a tooth so `that-the straight edge can engage b aelr of thenext tooth. Evidently, the sash can thus be forced step by step toward open or closed.

'wheel upon the stud and engaging the rack,

a lever pivoted upon the'stud, a pawl `supported to have longitudinal `inovernent Ain the lever and adapted to eng-age the teethof the toothed wheel, the pawl being', com structed to allow the toothed wheel to turn in one direction and tobe locked against turning movement in opposite direction, and ineans for reversing the position ofthe pawl whereby the toothed wheel can he held against turning and .cante vlrtatahle in either direction, as preferred.' i i 2. A sash holder'and operating device comprising a rack, a stud and rneang sup-y porting the same, a toothed wheel nponthe stud and engaging the rech, a lever pivoted upon the stud, a -pawl longitudinally t inev-` able in the lever and adapted to, enga e the toothed wheel, in eans for nerinally hlding the ravi iii engagement with the wetted Wheel, the ravi being adaptd te .allow the" toothed wheel to tuin in one directien" but to he locked against turning fmovernent Opposite direction, and means 1forreversine vthe position of the pawl whereby the toothed wheel can be held .against turning movement iii either dii'etion with ,respect to the lever, as preferred.

Signed. at Long island '1.11 the GQUIAY i,

of Queens and State of ew j ork, this 28th Clay of November, A; 13419.24

i EDMND QS( W,lLliLilYS,yy1

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