US1598917A - Sash lock - Google Patents

Description

Patented Sept. 7, 1926. *j

elses@ MST "0F Dawson; meenam sass: Loox.

y.llrrlai'c ima vfiled Qctobr .23, 122.5. :Serin-No. 64.3210.v

.My invention relatesda new and 1 useimprovementhin .a ,sash lock `and has for tsoliect tliefellovision QfasaSh lock, adapted. for useavith .wijndojwvsashes slidably moimted" '..franieswgwhicli wilhbe simple init-radura @Gegenteil (italiane-facture and highly @iraient-.iin use Another object of the invention is th'e the mounting of the lock on the frame withv which used. f

Other objects will appear hereinafter.

The invention consists inthe combination and arrangement of parts hereinafter describedand claimed. f

The invention will be best understood from a reference to the accompanying drawings,` which form a part of this specification and in which,

Fig. 1 is a side elevational view ofthe invention, mounted on a window sash, showing parts in section, 4 v v Fig. 2 is a sectional view taken on subj stantially line 2-2 of Fig. 1,l

Fig. 3 is a rea-r elevational view of the j locking mechanism used inthe invention,

vFig 4 is an elevational view of the sash in fragment preparedy for mounting the locking mechanism thereon. l

' As shown in the drawings, the invention is adapted for use with a window sash9, slidably mounted in a` windowv frame 10. Mounted on the facer of the windowfram'e whichV faces the sash 9 is bar 1l, having a plurality of shoulders 12 formed thereon. In mounting the device on the sash 9, the sash 9 is firstvk provided withk aA circular j recess 13, which is formed byA drilling, with the conventional size of window lused in railway carriages and the like, a hole one and yone quarter inch in diameter and one quarter of an inc-h deep. Formed in the window sash is a passage v14., which is drilled transversely thereof andcommunicates with the hole 13, and also, With'an enlargedrecess 15 formed in the face'of the window sash. l Mounted inv the recessV 15 is a circular `guide 16 having 'aj bore 17 formed rone of the shoulders 12.

therein, said bore being .preferably Square.

lDi/ojlectingoutwardly from Vthe guide 116,

atqoo JositeA sides. are winO's 18 and 19 which vare secured Itothe sash 9 by screws rvor other 'suitable means, A lock Yplate 20 is vprovided land secured-by screwstZL- or kother suitable inc aiis, to ,oner face of the sash I9,

a fiange 22 extending `at right'angles `to theplate 20vand engagingone edge of the rail ofethe `window sash 9. lProjectingr ontwardly from the inner .face ofthe vplate 20 is,astiid 2 3),l upon which isVV pivotally mount-l ed an operating arm 221, having the angularly turnedr port-ion 25, the arrangement comprising a bell crank with an elongated operating arm.` Pivotally connected at one end to the end of the Aarm 25, is a bolt 26, which engages in the passage 14 and projects through the recess 15 and beyond the face of the sash- 9, when in operative position, the portion' 27 projecting through the guide 1G being square in cross section and reduced in size from the remainder.

Mounted on a stud 29, projecting from thev inner `face of the plate 2O is a spring 28,V

which is adapted for rocking the arm 25 into position for projecting the reduced portion 27 of the bolt into engagement with Projecting outwardly from the plate 20 is a stationary raising arm 80. y

In operation, when it is desired to raise the window, the arm 24- is brought into closer relation to the frame 30, as shown in dotted vlines in Fig. 1, so as to retract the portion 27 of the bolt within the guide 16. When the window is raised or lowered to the desired position, a release of the arm 24 will permit the spring 28 to effect the outward movement of the bolt to en`- gage theshoulders 12. y

In mounting the device, the recess 13 is formed as well as the passage 14, and the bolt 26 slid into the passage .14, the arm 25 engaging in the recess 18. It is, therefore, believed evident that the mounting of the device upon a window sash is a simple operation, easy of performance ywith the labor reduced toa minimum.

While I have illustrated and described of structure shown, but desire to avail myself of such variations and modifications as come Within the scope of the appended j Having thus described my invent-ion7 what l claim as new and desire to secure by Letters Patent is:

A sash lock of the class described, adapted for mounting on a window sash, slidably mounted in a window :trame and comprising: a loch plate; a I'iange on said plate at one end thereof, extending at right angles thereto, said plate being adapted for mounting on one face of a rail of said window sash and said flange engaging another race of said rail, said rail having a recess formed in said face communicating with a passage extending in the direction of said frame, said passage terminating in an enlarged recess, adjacent said frame; a stud projecting outwardly from the inner iace oit' said lock plate; a bell crank pivotally mounted onsaid stud, having an elongated arm projecting outwardly through a slot formed in said flange; a lock bolt slidably mounted in said passage and pivotally connected to the inner end ot said bell crank, said lock bolt projecting through said enlarged recess and adapted, when in operative position, for extending beyond the surtace ot' said sash rail; a shoulder bearing plate mounted on said frame for engaging said lock bolt; an additional stud projecting 'trom the inner face of said lock plate; a spring mounted on said additional stud lor normally retaining said lock vbolt in operative position; a guide member mounted in said enlarged recess having a bore 'formed therein for the reception ot' said lock bolt, said lock bolt being reduced adjacent one end for projecting through said bore.

In testimony whereof, I have signed the foregoing.

RICHARD LIST.

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