US1826868A - Latch - Google Patents

Description

ot. 13, 1931. P. s DUNN 1,826,868

y VLATCH Filed NOV. 8. 1928 ,y lInfthe drawings,

aging' the parts inl another position;v v

v .Referring to the drawingsin which I havey illustrated my invention by shoyv'ingfav pre- Y o ferred` embodiment thereof, the reference -numeral 10V indicates', in general, a "hollow latch vPacman Oct. 13,"1931 LATCH This invention relatesto a latch, andjmore especially to a latchV provided Ywith a readily removable latch bolt and retracting mechanism.V A It is, in general, an object of the invention to bring about a simpliliedrform oflatch havvlr v ing butfew. parts, and whereintheparts' may be readily assembled and disassembled without thense of tools.v yj Y Another obj ect of kthe invention is to bring about an arrangementv o-'a latch and latch Y sists in the novelfeatures and, combination of partsto beV hereinafter describedfand claimed.V y o ,Y fFig. 1f is a planl view k"of a according to my invention;`

;-"`Fig.' 2 Aisiafiront elevation of thesame';

.j '-3 lFi a 4 isa view similar ,to Fig. 3,'fbut lshowingt e latch bolt retracted; andv f f Fig. 5 isk a `view similarV to 3, but'sh'ow case having atl one'en'd-v thereof an opening '11,

1n "which the head 12 of latch bolt 13 1s rea ceived, and at theoppsi-te endfan opening- -ii @which -t-.h'e stem 15 of bolt 131s received. Mounted onv` stem 15is" a 4compression Jspring i4; l''having oneendbearing against an'flnner lsurfaceof rear wall 17 of case 1Q, the opposite.

` endof spring'lbearing-against head .1,2 and .bringing about vthe protraction of, 'thev bolt.; Y In orderto retractthe latchbolt 13,a`V lever i 50,18 is ,providedl pivotallymounted gon *caseh l110 Figx '3 )isa sectional view'albng line SLS nahm-fing arnlgreceived in aisle@ ggf in head 12.' l"

. Case 10 is provided with apair of spaced HAvEN; coNNEo'rrcUnnssmNoR 'ro SABGENT. "sa confirm?, y' j.or NnwnAvEmconNEcrIcUT l f integrally formed ears 21v and 22,"having eX- tending therebetweenk a substantially lcylina semi-'cylindrical opening 24 in lever 18 and forms a pivotal. connection ybetween case' 10 and lever 18,@ Th'e armlQ'Vof lever 18 tapers v downwardly and is'of relativelyless width at it'spulowervend than/opposite the 'opening 24, Y

the lower .end ofarm19beingprovided with a .rearwardly directed lug 25, which during :the normalwoperation ofthe latch isreceived under a ,forwardlyyextending shoulder26 at ythe rear end of the opening20 inlatch bo-lt` 13. In order tolimit the protraction of latchbolt 13, the f'rear, wall'17 voffcase 10 is continued upwardly yto a point 27 substantially oop-f f positeothe upper edge ofpivotlu'g 23,1where 1t may be engaged by the handle 28of'lever 18, `while the movement of lever ',18`in retractingy latch bolt 13is limitedbyl face I29 of lever 1,8, which. engages faceO' of case 10.' yI .Iaterally. extendingii'anges 31 and`32 are provided for mounting the latch ona door or the like,A

while reference numeral' 33' indicates a strike"A provided withk a latch bolt-receiving opening n o The operation-of the latch will b e1,e`a 1dilyv understood ffornthe above description but may bebrieiiydescribed as follows rigs. zend eishow jthelatchwiuithe' bolt k13 fully lp`r ,)tra c ted,and the hand'le28resting against the; upper edge 27 of wall 17 the bolt beingvfo'rced into protracted position againstl'the lowerend of arm`19y by means Of'SP'Ilig 1.6- .l UPOD raising 'h'fmdl 28y .into the' position shown in dottedllinesjy inv Fig. 3, the. retracting v, lever 18 is swung about'pivot lug 23, thelower end of, armf`l'9`engagingbolt 13` 'and .forcingt the 'latten rearwardly yinto the position shown ingd'otted liners. f It is to fbe'lnote'd that iniathis position, thev shoulder 25 x is stillfengaiged under `shoulder 26 so that itlis impossible to detach the-retracting lever f ,rom-'thelatchcase Thus, thelatch bolt may be retracted and protractedl without anydan ger of the.operative vparts being. detached from the case. v f

5 al i drical pivotlug 23, which-1s received within In order to detach the latch bolt, spring and retract-ing` lever from the case, the operation is as follows: The latch bolt is retracted by pressing on the nose 35 of latch bolt head 12 by means of a suitable instrument and forcing the latch bolt further into case 10 than the normal retracted position. When the bolt is retracted in this manner tothe limit of the compressibilty oi spring 16. or at least to such a position that the shoulder 26 on bolt 13 clears shoulder 25 on lever 18, Aand the lug 23 clears the edges of opening 24 (Fig. 5), the lever may be withdrawn upwardly :trom the case 10 and separated theretronrr where upon the latch bolt 13 and spring'l may be withdrawn outwardly through opening 11. It is to be noted that the arm 19 of lever 18 is provided with a relatively flat tace 36 which when thelever 18 is rotated into fully retracted position is spaced from vthe upper end 27 of wall 17. The clearanceV between tace 36 and wall 1.'.7 permits the lever to be moved rearwardlv from pivot lug 27, a con: siderable distance but the lever cannot withdrawn from the case on account ot' the tact that shoulder 25 is still received under shoulder 26. Howevern when thebolt 13 is full retracted by a .suitable tool applied to nose the clearance between tace 36 and wall 17 becomes still .cre/aten and thus when shoulder 25 is clear oli shoulder 26 the lever may be moved rearwardly from disengagement with pivot lua Q3 and uwardlvtrom bolt 13 tobe separated from the latch case.

From the'above description ol the nature. of mv invention and the preferred embodiment thereoiE illust-rated. ,it will be readilv understood that the usual fastening means are enti relv eliminate-Tl. and while tbe several. parts ot the latch may be readily disassembled when desired there isno danger ot these parts becoming disarrane'ed during the normal op'- eration of the latch.

VVbile T have shown a nreterred embodiment ot mv invention. it is to he understood that the is not to be limitedto all tbe details shown but is capable oli modilication and variation within the spirit ot Jrheinvention and the scope of the appended claims.

That T claim is: n

In a latchn a casino'` a latch bolt in said casing, and means nivotallv mounted in the casino: tor retractine' said latch bolt` said means inclu-dino' a part ot the latch holt on the remoeagd@ thereott'rom the pivotal mounting and retained in the casing thereby. l l

2. In a latch, a. casing. a latch bolt in said part allvV .Us giu 0.

casing, means on said casing torretracting said latch bolt` and spring` means for proltracting the bolt, said retracting means including a part engaging the bolt to hold the Vretracting means in the casing during the normal protraction and retraction of the bolt, said part beine disengageable from the releases bolt by a movement of the bolt in the direction of retraction, beyond the normal retracted position of the bolt.

8. In a latch, a casing, a latch bolt in said casing, a pivoted lever mounted inthe casing having a part engaging the latch bolt and adapted to retract the same, and means on said lever engaging a part ot the latch bolt to retain thelever rigidly against movementout ot the casing when the lever is separated trom its pivotal mounting.

4. ln a latch, a casing, a` latch bolt mounted in said casing, and a retracting lever mounted in said casing, said latch bolt being provided with an opening and said lever being provided with an arm v extending through said opening, and means on the lower end of said arm beyond theA opening engaging said bolt to Iretain the lever 1nI said latch casing.

5. ln a latch, acasing, a latch boltmounted in said Y casino; and a retracting lever mounted in said casing, said latch'bolt be-i ing provided with an opening and 'said level` being provided with ,an` arm extending 6. ln a latch, a casing. a latch bolt mounted i in said casing, a pair ot ears on said casing, a pivot lug extending between said ears, a retracting lever insertable into said casing between said .ears and provided with` an opening in which said lug is received, said V retracting lever having means th'ereonen gagingr said bolt to retract the same, 'and means on said retracting lever engaging said bolt to hold `the retracting lever in 'saidicase Y 7. In a latch, a casingralatch bolt mounted in said casing, a pair ot ears on said casing, a pivot lug extending' between said. ears, a retracting lever mounted between saidV ears and provided with an opening inwhichlsaid lug is received, said retracting lever having means thereon engaging said .bolt to retract the same, and means on said retracting lever engaging said bolt to hold the retracting lever said case said latch bolt beingv disengageable from the bolt upon movement of the bolt inthe direction of retraction beyond the normal retracted position of the bolt.

8. In a latch, a casing, a latch bolt in said casing, said bolt being `provided withan opening` a nivoted lever mounted in the icaslng, said lever having van arm extending through said opening,'and a rearwardly' directed shoulder on the lower end of said arm,

said shoulder underlying a part ofthe bolt during the` normal operation of the latter said bolt being disengageable from said i '5 casing, a pivot lug in said'casing, a retracting '20* in retracting the bolt, saidmea-nscomp'ris- V1,826,868y Y f v V"E5 Y shoulder uponmovement of the bolt in the direction of retraction beyond 'the' normal*v retracted position of the bolt.

9. In a latch, a casing, a latch boltin said Y `lever havingan open faced recessV inV which j ltheV pivot lug may be received,and means on, said retracting lever engaging lsaidboli-to retract the same upon movementv ofthe lever, 10. and means independent of said lugfor hold- Y Y, ing ysaid lever in said casing,vsaid last-'nan'ied y means being freely movable into position' to` disengage said lever. l

l0.' In a latch, a casing; a latch bolt in said casing, a pivot lug* formed on said casing, av

' retracting lever havingan opening in which v -said lug is'received,-means.on said retrating lever engaging said bolt'to .retract the samey and means'to limit the movementof the leven l.

ing an outwardly extendingv face ion said lever adjacent the opening and a partof said lpivot lug With which said face cornes in con-Y tact' y I n In WitnessY whereof, I have 'hereunto set'my hand this 29th dayof October, 1928. A

" PETER S. DUNN.Vv

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