US872099A - Sash lock and tightener. - Google Patents

Description

N o. 872,099. PATENTED NOV. 26, 1907.

' H. 0. WOLFE.

SASH LOOK AND TIGHTBNER.

APPLIOATION FILED AUG- 23.1907.

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PATENTED NOV. 26. 1907.

H. 0. WOLFE.

SASH LOOKAND TIGHTBNER.

APPLICATION IILEDAUG. as. 1901 2 SHEETS-SHEET 2.

E m-0c u Tom UNITED STATES PATENT ()FFICE.

HERMAN O. WOLFF, OF SYRACUSE, NEW YORK.

SASH LOCK AND TIGHTENER.

Q No. 872,099.

To ZZZ whom it may concern:

Be it known that I, HERMAN O. WOLFF, a J citizen of the United States, and resident of .5 ,Syraeuse, in the county of Onondaga, in the .35 State of New York, have invented new and useful Improvements in Sash Locks and Tightencrs, of which the following, taken in connection with the accom anying drawings, is a full, clear, and exact escription. o .-'10 V i This invention relates to the class oi sash locks in which a dog is pivoted to the sash andengages a notch in a part of the window- -i easing. And the invention consists in an jirnproved construction and combination of i; 1=5.th e component parts oi the sash-lock which is very etlicient and convenient in its operaj tion of locking the sash and at the same time causes the locked sash to be tightly seated on the window casing so as to effectively excludeair from the joint between the sash and the casing. l'nthe.aecompanying drawings, Figure 1- ,.is an inner face view of a portion of a sash equipped with my invention: Fig.1 is an :f enlarged vertical section on the broken line -X-X in Fig. 1; Fig. 3 is a further enlarged horizontal section on the line -Y, Y+.- in Fig. 1; Fig. t is a transverse --sectionmthe line Z-Z--in Fig. 3; and Fig-. 5 is an enlarged transverse section of the stile oi the'sash taken on line -'U. 2;, X-,- represents the sash, and B- the casing which is provided with the inner verti- ASE Ecal 'guiding-strip ---C usually designated the window-stop. 'lhe.outer edge ol the said step is provided with a vertically disposed series of notches 4041. for the purpose hereinafter explained. Said notches are preferably in a bar e attached to the 4 0 stop 'lhe edge of the stile -11 is Formed with a recess ----c-- extending lengthwise ot' the stile and in the said recess is rigidly secured a vertical metal bar (I preferably L- shaped in cross-section and disposed with one ol its webs flush with the edge of the stile l) The lower and upper end portions of the said web of the bar -(Z are each providedwithan aperture. -c and totheinuer portion ol'said bar are pivoted t\\'odogs f and ef adapted to protrude through the :tPtti-lll'tis e 'rr and engage the notches a (I. -opposite said apertures. 'lhedogs f are beveled toward their outer ends and bear on the bot lonis ol t he engaged notches hen the said dogs are in position to Specification of Letters Patent.

Application filed August 23.1907- Serial No. 389.762-

Patented Nov. 26, 1907.

I lock the sash as shown in Fig. 2 of the drawings. Said bearings of the dogs serve -to crowd the sash outward to the outer guidingstrip of the window-mising as shown in Fig. 3, thus forming 'thereat a tight joint between the sash and casing so as to ell'ectuaily exclude air from said joint,

--hrepresents a rod which extends vertically through the recess c in the stile of the sash and is connected at opposite ends to the two dogs ----/'-f-- so as to operate them jointly. 1 preferably conneetthe lower end of said rod to an inward extension --i-- of the lower dog f and connect thoupper end of said rod to the central portion of the dog as shown in Fig. 2. This causes the two dogs to move in opposite directions from each other. 'lhelower dog is employed to prevent the sash from being raised from its closed position. The upper dog -fserves to prevent the sash from dropping from its raised and open position.

The dogs are automatically thrown into their engaging position by means of a spiral spring -j* which rests on top c. a bracket 7r attached to the bar Z and surrounds the rod h to which is attached a collar l bearing on the upper end of the spring. For moving the dogs out of their engaging position, a horizontal rock shaft -m is placed in the bottom rail n of the sash and fastened at its outer end to the lower dog -fand constitutes the pivotal support of said dog as shown in Fig. 3. The inner end of said shaft is iv- 0- which is rigidly attached to the inner face of the bottom rail of the sash. The said end of the shaft is provided with a transverse perforation p for reception of a tongucf--t-- formed on the end of a thumb lever -r which is also formed with a yoke --sshaped to embrace part of the shaft and thus compensate for the weakening of the shaft by the perforation -p and at the same time brace the thumb lover.

The object of the described connection of the thumb lever to the shaft ---m is to allow the said thumb lever to be withdrawn from the shaft and removed from tlie sash and thus guard against the unlocking of the sash by t nauthorizml persons.

What claim as my invention is l. The combination, with the sash and the casing provided with a vertical guide-strip engaging the inner side of the sash, of a dog otcd to a plate oformed on the p ate movably connected to the sash and bearing l on the outer edge of the guide-strip, a springpressed member automatically forcing the dog toward the said guide-strip to engage said notches,

the latter, a rock-shaft connected to the spring-pressed member for moving the dog away from the guide-strip, and means for actuating said rock-shaft as set forth.

2. The combination, with the sash and easing, of a vertical guide-strip provided with a vertically disposed series of notches, a dog pivoted to the sash and having a protruding portion adapted to engage one of the notches and beveled to crowd the sash outwardly to bear on the casing, a spring-pressed'rod automatically forcing the dog toward the guidestrip, a rock-shaft disposed in the bottom rail of the sash for operating the rod in opposition to the springto turn the dogout of engagement with the notch, and a thumblever for actuating. said rock-shaft as set forth. y

3. The combination, with the sash and the casing provided with a vertically disposed series of notches, of two dogs pivoted respectively to the lower and upper portions of the sash and disposed to engage the aforea rod extending vertically stile of the sash and connected through the to the dogs, a spring forcing said rod longitudinally in one direction, and means for moving the rod in the opposite direction.

4. The combination, with the sash and the casing provided with a vertically disposed series of notches, of a metal bar secured vertically in the stile of the sash, dogs pivoted respectively to the lower and upper end portions of said bar, a rod extending lengthwise of said bar and connected to said dogs, a bracket attached to the bar, a spiral'spring surrounding the rod and seated at'one end on the bracket, a collar attached to the rod l and bearing on the opposite end of the spring,

' apertures,

\ the other dog,

and means for moving the rod in opposition to said spring. H

5. The combin fibion, with the sash and the casing provided with a vertically disposed series of notches, of a metal bar secured vertically in the stile of the sash and provided with apertures, two dogs pivoted to the said bar and protruding through the aforesaid a rod extending lengthwise of said bar and connected to the dogs, a bracket attached to the bar, a spiral spri g seated on said bracket, a collar attached to the rod and bearing on the upper en of the spring, a horizontal shaft in the bottom rail of the sash and constituting the pivotal support of the lower dog, and a thumb-lever connected to said shaft. I

6. The combination, with the sash and the casing provided with a vertically disposed series of notches, of a metal bar secured tically in the stile of the sash and provided with apertures, two dogs connected movably to said bar and protruding through the apertures thereof, a rod extending lengthwise o the bar and having one end engaging an inward extension of one dog and at the opposite end engaging the central portion. of

a spring gitudinally in one direction, and means for moving the red in the opposite direction.

7. The combination, with the sash am dogs for locking said sash, of' a horizontal shaft in the rail of the sash and transmitting motion to the dogs and provided with a transverse perforation, of a thumb-lever formed with a yoke embracing a portion ofthe shaft and with a tongue entering the perforation of said shaft and removable therefrom-as set forth.

HERMAN O. WOLFF. In presence of' J. J LAAss, J. E. HARWOOD.

forcing the rod lon-

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