US1659655A - Sash latch - Google Patents

Description

T. W. HOLT SASH LATCH Feb; 21, 1928.

Filed June 1, 1925 2 Sheets-Sheet 1 @jimi Feb. 2l, 1928.

T. HOLT SASH LATQH Filedjlpge l, 1925 fg 7 2 Sheets-Sheet 2 with window -sashes `for the purpose of holdf` the invention'lis susceptible `embodiment Patented Feb. 21, 192s.

UNIT-ED SVTATi-:s

PATENT OFFICE. r

. THOMAS wfHoLfr, or surnam, INDIANA, Ass'IeNoB, isY nnsNnAssIGNMENTs; To A -THE ADAMS & WESTLAKE COMPANY, OFCHICAGO, ILLINQISA CORPORATION ILLINOIS.

sasn LATCH.`

,nppnamn nica miei, m25. smal No. aaooi.

This invention has to dowith latches of tlieitypewhich are adapted to be associated in@ the sashes in raised positions.

llfhe object of 4the invention is to provide a sash latchof improved construction which may be easily andcompactly assembledwith a sash, which 4is `so reinforced as to with sta-nd the most severe usage, and which may in the form of two flat L-shaped `side plates l vention residing substantiallyin the features of construction and arrangementhereinafter disclosed. 1 Inorder that the invention may be readily understood, `one lpreferred, embodiment `the same is presented in theaccompanying drawings and Linthe following description basedthereon, but itwwill be appreciatedthat in other structurally modified forms, land the particular form chosen for exemplication is therefore not to .be construed as limiting the application of the invention short of its intended scope as set forth the appended!v claims. p

. In the drawingsi tion; y y y Fig. 2 is a somewhatfsimilar view, but with the front face of the latch plate broken away to show the contained parts;

Fig. 3 is a vertical section through the sash taken in the median plane of the same;

Fig. 4 is a vertical section taken on the 1, but showing a slightly different way of mounting certain of the latch parts; and

Fig. 8 is a vertical section taken on line 88 of Fig. 7.`

The latch ofthe invention isshown in" the drawings as appliedto a sash 1() of sheet metal construction.;` `Theflatch, which may be readily assembled with, or removed from, the sash, has the part-s thereof mounted upon twodetachable members. One ofsuch inem` bers is an L-shaped corner ieee 11 con-V tained within the mitered en s of the stile 12 *and rail 13 of the sash, and the other is` anL-shaped latchfplate 14 secured to the side walls of `and s anning the miteredends ofthe stile and rail). i f

The corner piece 11, when used with hollow sheet metal sash members of the particular cross-sectional form shown, is preferably 15 which are arran ed in spaced relation to each other against t e flat parallel side walls ofthe sash members, as shown inFigs. 4, 5 and. `The plates 15 of the" corner piece are Joined together along their long `vertical edges by an integral cross web 16 which seats against they grooved edge wall 17 of the stile 12,4and the edge portions `ofthe plates v15 mostfremoved from theweb 16 are pro-` i 'at its Upper end" between the` ears 20011 a Fig. 1 is an inside v iewof one corner of a sash equipped with the latch of'the inven" tubular pin 22 which is supported in the ears,

andthe depending stop-engaging nose 23 of the. datent "is adaptedlto oscillate into .andout of the guide groove of the stile 12 through two aligned apertures 24.- formed" in the Iwebloii the corner piece and the wall 17 ofthe stile. The nose23 of the detent 21 is adapted to pass out over and seat upon a horizontalledge presented by a stop, and manytypes of stops may be employed in conjunction therewith. The particular stop y,25 shown is embodied in a combined sash guide, weather strip and latch rack, formi ing the subject matter of a separate ap lieation. 'A leaf spring 26 is secured at its ovver` end by a rivet to the bottom of the cross web 16 of the cornerpiece, and the upper end of the spring is reduced in width at 27 and bears against a grooved` portion 28 of the detent 2l in a direction tending to urge the nose of the detent outwardly into `its i stop-engaging osition, as shown in Fig. 3.

The upper en of thedetent" may be" advantageously arranged in substantial contact with the block 18 at a point 29 between the ears 20, in order that, whenever the nose of the detent is brought to rest abruptly by the stop, the 4stresses to which the detent is subjected will be transmitted directly to the block as a back stop rather than to the necessarily small pivot pin 22 about which the detent oscillates.

The latch plate 14 previously referred to is .flanged about its edges at to form a housing, and is arranged with the flanges against the side walls of the stile and rail. A finger piece 31 is pivotally mounted within the latch plate la atBQ, and is provided with a laterally extending pinI A33 which passes through two aligned apertures 34 in the corner piece and stile into an aperture 35 in the detent.v Vhen the detent is in its stopengaging position, the finger piece 81 connected therewith by the pin?) is in the position shown in Fig. 2. A wire spring 36 is also'carried Within the latch plate la, and bears against a grooved shoulder portion of the bottom of the finger piece in such a way as to hold the same in the position shown. The spring 36 may be held in position in the latchfplate by means of a reversely bent tongue 37 inside ofthe'latch plate on the lower horizontal flange 30 ot the plate. The

upper horizontal flange 30 of the latch plate is reversely bent outside of the plate to provide a horizontal lift 38 for use in raising the sash.

Thecorner piece 11, stile l2, rail 13 and latch plate 14 are detachably secured together by means of a plurality ot transfiring screws. Two screws 39 and l0 may passthrough aligned apertures in the latch plate, stile and corner piece, and engagewithin the tubular pivotpin 22 upon whichl the detent x 21 is mounted, and two telescopic clamp screws 41 mav pass through aligned yapertures inthe latch.v plate, rail and corner piece.

It will be appreciated from the 'foregoing description that the various parts of the,

latch of the invention may be permanently mounted separate from the sash, and may then be assembled with the sash 1n proper relation to each other by merely telescopingV the ends of the corner piece l1 into the mitered ends of the stile and rail, placing the latch plate in position against the corner of the sash and securing the assemblage together with the screws 39, l() and 4l. It will be observed that both the detent an d the finger piece of the latch are independently actuated by separate springs, which insures proper actuation ot the latch even though one of the springs be rendere-d inoperative Jfor any reason. The extremely simple con struction of the parts of the latch and of the members upon which such parts are mounted permits the latch Vto be vman'ufacured and assembled at low cost. l

In Figs. 7 and 8 of the drawings is shown a slightly modified form ofthe latch which differs from the form above described principally in the way in which the detent 21 is mounted. In this form a stud 4t2 is fiXedly secured to the lat-ch plate 14 at a point above the finger piece 31. The detent 2l 'is pivotally mounted on the stud 4:2 in lapped relation to the finger piece 3l, and is osc1l-V lated in a stop-engaging direction by means of a suitably anchored coil spring which encircles the stud between they detent and theplate. All of the parts 'of the latch are, as a consequence, completely assembled with the latch plate la separate from the sash ,tol

which the latch is adapted to be attached, and the latch assembly may-be rcadllyasscciate'd with the sash'by merelycutting an opening lllin the side wall oi" the sashand the corner piece, inserting the detent andV stud through such opening until the detent is the median plane of the sash and in line with the opening 24, and then fastening he latch assembly in place with the two telescopic clamp screws el and a short screw 45 which mayextend into the free end of the stud 'fl-2.

I claim z: y 4 y Y Y l. In a sash latch, a detent, va spring tending to move the detent into its stop-engag`ing position, a finger piece connected with the detent to move the latter out of its stop-en`v gaging position, and a second spring tending a finger piece carried by thek latch plate ,ear

teriorly of the sash member and connected with the detent through anaperture in the sash member. y

.3.' In a sash latch, a Ahollow sheet metal sash member, a detent mounted within the .sash member for movement in a plane of the sash, a hollow latch plate detachably secured to one side of the sash member, and a finger piece carried by the latch plate eXterorly of the sash member for movement in a plane substantially parallel: to that of the detent and detachably connected with the detent through an aperture in the sash member.

l-. In a sash latch, a sash member,a latch plate having its edges flanged toward the sash member to form a housing, and a iinger piece mounted within `the latch plate, one of the flanged edges ofthe latch plate being reversely flanged on the outside oil.E the plate to form a lift below the finger piece.

5. In .a sash latch, two sash members arranged to form a sashcorner, an Lshaped latch plate having its edges y'flanged toward the sash members at the corner` to form a housing, and a finger piece pivotally mount ed within the vertically extending portion 'of the latch *"plate` one of the flanged edges of" the corner piece and operable through` an ap-` erture inthe outer wall of the adjacentsash member, and a finger piece carried b the latch plate and connected with the cetent through an aperture in the side wall of the sash member.

7. In a sash latch, a hollow sheet metal stile having an aperture in the outer1`wall thereof, a lining Ymember contained-` within the stile, a detent pivotally carried by the lining member in a position for movement through the aperture in the stile, and means for operating the detent,

8. Ina sash latch, a hollow sheet metal stile having an aperturel in the outer wall thereof, a lining member contained within the stile, a detent pivotally carried by the lining member in a position for movement through the aperture in the stile, means for operating the detent, and a block carried by the lining member in approximate contact with the detent when the latter `is in its stopengaging position whereby to provide a back stop for the detent supplemental to its pivot.

9. In a sash latch, a detent having a pivotal mounting, a linger piece arranged in lapped relation to the detent and having a pivotal mounting axially separate from that of the detent, and alaterally extending connect-ion between the lapped portions of the detent and the inger piece to permit positive operation of the former by the latter in either direction. y

10. In a sash latch, a detent having a pivotal mounting, a linger piece having a pivotal mounting axially separate from that of the detent, and a connection between the detent and the linger piece to permit operation of the former by the latter, said connection comprising a pin extending laterally from one of the elements and engaging in an aperture in the other.

11. In a sash latch, a hollow sheet metal stile having two apertures in the outer and side walls thereof, a latch plate spanning the aperture in the side wall of the stile and secured to the stile, a detent pivotally carried by the latch plate and inserted through the aperture in the side wall of the stile into a position in alignment with the aperture in the outer wall thereof, and a finger piece also pivotallyk carried by the latch plate and connected with the detent to operate the latter.

12. In a sash latch, a hollow sheet metal sash member, a latching bolt contained within the hollow portion of the member, a plate securedv against one` side `of the member, and a linger piece carried by` the plate between the same and the member `and opera-` tively connected with the bolt through an aperture in the member. i

13. In a sashlatch, asheet `metal sash member, a latching bolt arranged within the member and rpivotally mounted thereon, a" housing plate secured` against and opening toward one side of the member, a linger piece arranged partly within the plate and pivotally mounted thereon, and a laterallyseparable operating connection between the finger piece and the latching bolt passing, throu h an aperture in the side of the mem# 15. In a sash latch, two sheet metal sash members arranged to form a sash corner, an interior reinforcing member vextending into both sash members at the corner and having two laterally spaced L-shaped side portions in engagement with the inner sides of the members, a latching bolt pivotally mounted on the reinforcing member within the sash corner, an exterior plate spanning both sash members at the corner and having a finger lift, a finger piece pivotally Vmounted on the plate and extending into a position above the lift, and a lateral connection between the finger piece and the latching bolt for operating the latter.

16. In a sash latch, two sheet met-al sash members arranged to form a sash corner, one of said members having an aperture in one side thereof, an interior reinforcing member extending into both sash members at the corner and having two laterally spaced L-shaped side portions in engagement with the inner sides of the member, one of said side portions having an aperture therein in register with the aperture in one ly separable lateral connection between the 'iinger piece and the latohing bolt for operating the latter, and a spring interposed between the'finger piece and the Iplate Jfor maintaining the former normally with the latching` bolt in stopengagingposition.

17. In a sash latch, a sash member, a latohinkg,` bolt arranged therein, a plate secured to one side of the sash member adjacent the lat-chingbolt, a finger piece pivoted to the plate, an extension kon the finger piecea laterally extending` connection between the extension and the latching bolt for moving the latter upon oscilla-tion ofthe finger piece, a shoulder on the finger piece, and a springl interposed between and acting` 'in opposite directions against the shoulder and a portion of the plate.

18. In a sash latch, a sash member, a latching bolt arranged within the sash member and pivotally mounted therein, a plate secured to one side of the sash member adjacent the latching bolt and having a finger lift, a finger piece arranged between the plateV and the sash member and pivotally mounted on the plate, an extension onV the finger piece, a laterally ext-ending lug on the extension projecting into an aperture in the latching bolt below` the pivotal axis thereof for moving the lower end of the bolt into and out of stop-engaging position, a shoulder on the finger piece formed to center a spring, and a spring yinterposed between and acting in opposite directions against the shoulder and a portion of the plate.

19. In a sash latch, a detent, a spring tending to move the detent into its stop-engaging position, a iingervpiece connected with the detent to move the latter either into or out of its stop-engaging position, and a second spring tending to move the finger piecev in such a direction, that the detent will be moved thereby into its stop-engaging position independently of the action ofthe first spring. y

In testimony whereof I have hereunto subscribed my name.

THOMAS W. HoLT.

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