US1233055A - Automatic window-latch. - Google Patents

Description

LE. HEIKKILA.

AUTOMATIC WINDOW LATCH.

APPLICATION FILED NOV. 2. 1916.

1,233,055. Patented July 10, 1917.

.25 "-provideie latch of the class described which es-aces. I I Ap i'lieation filedfl'o'vem'ber 2,1916. eriei Etc. 129153 .5 0, all whom it may cnoe1%;

" Q seem" s;

Beit known that" 1, JOHN E. HEIKKI A, a,

.citizen of the United, States, end resident of Syracuse, in the county of ()nondegzt and State of-New vYork, imve invented certain new and useful Improvements in Automatic WiIidOW-Letches, of which the fciiowing is e specification.

vThe present invention ieizites tc window latches endi es. foi' its primary object the 'prov1sion Oi" e novel and simple form of so tometic Window latch adapted for .insteihe ticnon the meeting mils of sliding" sashes.

Another object of my invention is to pro 15 videa Window latch of the class described which upon moving the sashes of Window [to closed position eutometiceiiy locks the sashes in such position.

' A; further object of icy-intention is to provide a Window iatch cf the class described which iii not in any Way interfere with the manipulation of the sashes. when epen and one which. is entirety automatic in.

so far as the-locking feature is concerned.

Astiii furtherob ect or my invention is to is strongend durable, may be cheapiy men- 1 iufactured; end sold, does no require any skiii in..inste1iing;-the same, and is effective in operation. Other ob ects end advantages to be de rived fi om the use of my improved. auto v fciiowihg detailed description and the claims,

taken itheiii spection of the ecceinpeey sing-drawing, in which Figure is fi'agiiieiitei sectional View e1? e eir-of Window sashes showing my imhzview cfthe latch arm.

Referring more particular-1y to the draw-w ing, Whei em simiiai' characters oi fete/fence .desi mete like and COIi'fiSuOIlCiiYi :ierts b i b 1 M throughout the venous YMWSJIQ and ii designeteltheupper and iewei sashes of Window, theseme having ti'ie is'cei heveied meeting rails mend The ietchi ig device 01' eludes an ehutmeet member designated A surface of the rail 13.. A supporting block ietch emu e described in deteii heieliieftei.

.EgEI-EKILA, es

.1 Lemme W Specification efltettersPeteiit.

tim

Referring specificeiiy to the I abutment member A, the seine consists of I e body termed with e hesportion 15- through 18 -the pio'jectien 18 pyramidal iii appealence ha: mg converging curved surfaces, 19. The member ii ispi'ovided with a recess 90 and a pair of aiined transverse openings 21 in which the sliding hoit 22 is mounted, said sliding bolt projecting from the inner surface of themember A under the action of a coil spring 23. The outei'tfree end of the siidiiig holt 23 is previded withknob or handle 24 to ?withdrawing the seine. 1

The ietch arm a is p 'eferebiy curved in general cont-cur, the same being provided with enopening through Whiche be'erihg pin 26 is engaged, said .ietch arm a: being mounted between the s endardsQ? formed on the member B. The ihner edgeof the member ii is receseedes cit 28 tojfconform the member A when in locked position.

The ietch arm a is plfOYideCi i'vith." ei ec ess 30 having a straight bottom 'weii fil end a diagonal tap wail 1'. 2i A. shouidei 33 is formed on the member B between the farms 2? to limit the movement cf the hitch a-n i a and prevent the same from contalctiii g with the WindeW pa I When closing the Wi.i1dovi?,'ti1e sas he moved into engagenie it' as show 1, the arm a being in the inoperative 1' unlatched position and the sliding hoitect iiig from the member f imieii the bolt strikes the recess 30 the arm afwfli be caused I to swing into engegemehtlwiti the member A. as shown in While theses/1132 the recess 36 is incline-ii; thejengie.ofjnclinw ticn is not sufiicient to ermit eo'peni iig of the M311 by raising thesesh'. the fi'ee'end of the Emit 22 engaging the Wail 32 thereby preventing raising ofthe iowe sash cf'iowei'ing of" the upper sash. if ccurse; the err'ri a eztthis time Tagged with thei'ne'iiiber A, and in view of curved siirfeees ifii ofthe giroje'ctich 18 ei'igeging snugly in the/recess 28 the strain is Fezloved froni'the bolt and distributed tiiroughcut the arms and said projection, Itwiii foe readily apparent that my impreved. .ieteh is memes in operation in so far as the locking feature is concerned. Of course, when it is desired to open the window it is necessary to withdraw the bolt 22 from engagement with the recess 30 thus permitting rotation of the arm a and disendevice as embodying a specific structurefI desire that it be. understood that such changes may be made in said structure as do not depart from the spirit and scope of the invention as claimed.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is:

1, In a device of the character described the combination with the meeting rails of window sashes, ofan abutment comprising a body portion, abase formed on the body portion adapted to be secured to one of the meeting rails, a" pairiofprojections formed on the upper part of the body portion, the surface of one of thepr'ojections being curved, the abutment being provided with are'cessed portion, said abutment being provided with alined opemngs on opposite sides of the recess, a sliding bolt mounted in the openings, a coil spring mounted on the bolt within said recess, a supporting member rigidly secured to the other meetingrail, and a latch arm pivotally mounted on said supporting member, having a recessed portion adapted to normally engage the bolt, the latch arm being provided with a recessed portion adapted to be engaged by the projections for a purpose specified.

2. In a device of the character described the combination with the meeting rails of window sashes, ofan abutment comprising a body portion, a base formed on the body portion adapted to be secured to one of the meeting rails, a pair of projections formed on the upper part of the body portion, the surface of one of the projections being curved, the. abutment being provided with a recessed portion, said abutment being provided with alined openings on opposite sides of the recess, a sliding bolt mounted in the openings,

" a coil spring mounted on the bolt within said recess, a supporting member rigidly secured to the other meeting rail, a pair of standards mounted on the supporting member having alined openings therein, and a latch arm hav-.

ing a transverse opening inone end thereof.

a pin mounted in the openings of the supporting member and the latch arm to pivotally engage the same, the latch arm having a recessed portion adapted to be normally engaged by the bolt. the latch arm being provided with a recessed portion adapted to be engaged by the projections, and the free ends of the latch arm member being beveled for a purpose specified.

3. In a device of the character described the combination with the meeting rails of a window sash, of an abutment comprising a body portion, a base formed on the body portion adapted to be secured to one of the meeting rails, a pair of projections formed on the u'pper part of the body portion, the surface of one of the projections being curved. s0 jthe abutment being provided with a recessed portion, said abutment also being provided with alined openingson opposite sides of the recess, a sliding bolt mounted in the openings, a coil spring mounted on the bolt within said recess, a supporting member rigidly secured to the other meeting rail, and a latch arm pivotally mounted on said supporting member having a recessed portion,

said recessed portion having a straight bot tom wall adapted to be normally engaged by the bolt, said supporting member having a shoulder formed thereon, the latch arm being adapted to engage said shoulder, said latch arm member being recessed to conform to the shape of one of the projections to engage the same, and the free ends of the latch arm being beveled to conform to the inner edge of the other projection for a purpose specified.

i. In a device of the'character described'loo the combination with the meeting rails of window sashes, of an abutment comprising a body portion, a base formed on the body portion adapted to be secured to one of the meeting rails, a pair of projections formed on the upper part of the body, the surface of one of the projections being curved, the abutment being provided with a recessed portion, said abutment being provided with alined openings on opposite sides of the recess, a

sliding bolt mounted in the openings, a coil spring mounted on the bolt within said'recess, a supporting member rigidly secured to the other meeting rail, a palr of standards mounted on. the supporting member, a shoul- 11'5 der formed between the said standards, a latch arm pivotally secured to the standards the movement of which being limited by said shoulder, said latch ar'm having a recessed portion adjacent one end adapted to be engaged by said bolt, and a portion of the latch arm being of a contour supplemental to that of the abutment for a purpose specified.

In testimony whereof, I afiix my signature hereto.

JOHN E. HEIKKILA.

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