US1873462A - Sliding door lock - Google Patents

Description

Aug. 23, 1932. E, w, NORTH 1,873,462

SLIDING DOOR LOCK Filed 000. 27. 1930 IN VEN TOR.

Patented Aug. 23, 1932 UNITED sm @TEN-r noon Loox xwnmmmeeowoww, met. nea-mash? This] invention: reiatee tev leks: off thetype; particularly weiif adepte@ for-'use onf slidig" doors# eucli-y zis show oase doors andL the lilre'fl Ass zu primaryy object4 ofi this' invention? it@ provides? suehl a loelif Wlehf require?.s ain/linie' mum amount of cutting; off thei door trames?. andmuy thereforerbereadi'ly*inetalled, which nermally' esem-nee" ,111V unlocked-f psibidn and'- Wfhichi may' bellodked by merely? pressing, the.t 1'01 beit inwardly Without thery userl of e; keythey key merely being' necessary' ierVV unlocking;

It/isvalso en objeet Ioitlii-sv.iniventifenltopresl videll av lbolrhzrvin'g, these features and' vvvliilh will; require? few peintsaid which' may' beu 151. menuaee'tfured' eeonomicaily?` partieulr-ly ifmV lergequantitiee y Other novell features o blisinventionf Will-'f be apparent froinl the following: deschiptom` gvenl inl connection with'v the dr'zrwingv im mi which :1 i l Fi=g 1 is aflbngitiudinwlf see'tion: through: :n locksliowing bhe= ssime appliedf to tire? dbox?`- members and in looked position.

25 Figi elongtudinu' seetiomoii thef loeli removed frisur door andi illustrating, the semeE inr imloekedE positions' Fig: 41 is: enf elevation. of? oneg oa@ the dise; members or theleali.I

Ifig;y 5=ilsf an: e-levatiom eff zr'spaeerfmemere Figi 6de anfeeveeienf ofi hemmblem Fig; 7 is en' elevati-en-oi'va!lock` washer. Fig; 82 ise111'elevation1 ofi? thekey fbr'uein thelocle I ,y #5T Ref'eriiifg.;r more# particularly t@ the driewing, it will be seen that the lokpemprises- :3+ cylinder l .tenninatingz at one' endfingzi s hght- 1y enlarged eirouier recessedy selvedge Qn The; cylinder witliat's selvedge eid eeiesl elf e, wliousing, or oasingf iorV the eti lofelz Mounted fori reciprsgefy'ioveiegie iii ain @iX/fiar directing Within' die eyljiidef a plunger-like: lifelti 3 'Ijie Belt* 3 is previded with2;;@31eme:likejmeiiiber2r1011igeen;filiere m eff The-Sleeve'issecured!tetheloitrrfeicipfocafli meramente tlle'rewth- By l'eirgj pre: vd'edl tforieen'dA with' an ennulefreeesewge receive eiieefigefelffie'e del mme@ off! Bowel.- Tfliefsleve:iswgwdver'aeirefei are w :w74 doilbckehe 62 witliiiil reeess a'mdf yet permity rotetioni o the boit'relatively to" the: seelvfe.: Thel sleeve is also providedwith, a flange 8 upon its inner: end which flange? senvesfas a bearingsvguide slidebjle" Within', iilie ofyflinden` bhel-tter: having4 :i HngeI 9; spun; 552 over:A upon-the end thereo! Ela'nge 9' env gag'esi iafge 8; alidzlimit's thernovenientfo the? bolt in: one*` directie-nr U-shzqoed'` look Wsii'er 10? .engaging -ifroiiler ginooire 11' formed#k af bolt 3f intermediate-its ends finithenV prevents wxiwlmovement? betweensleeve 4 andrboit-#i` 1 .v .Y

Aie', dan Seen, thefeleeve 4s and?V bolt 3l are' redlpoellys nioulnted'Within` cylinder 1 and* are ot sueh lengthtliet When'- in locked posi-" t'olr'thei` bolt entends beyond the cylinderv at: the seflfvedge`v end adwhen i'nf uiildele dI pogi-rv tion the sleeve extends beyond the otherz end; o the cyl-inde!! Where it: may: be engaged to be moved into? locliing-.ipsitinl The ,boltl 7b3 and Sleeve' are" normally urged to? the leitf; ae` viewedi in! Fige.41 li and 3? o'rft? unloele diposi-f, tion by a compression spring l2 Surrounding bolt zwibliin'thevoylinder and' placed under ooinprefsiow betWeenv-loele-'Washer 9 and? ai dise 1133. thelatzter beingdispoedz With-in lthey recessed? sel'vedge endl?! of cylinder 1;;

Ifn ovden to retainbbltf inilooked'positio; the. bolt@` isf. provided Withl enf :innulmgroovef 'll-his.' groove'is engagedv by ze pivoted' lefvvf trnblfen 16l pivoafliy seourd' between? d-iso 1-3f 25nd? es similer opposeddie@ lZf. f 'Bhe two discsare'held .in`r speced"relationx by' e1 segmentil spacer dise` lfgithe letter beingof" sfuieientr thickness2 to provideal Spence" be`= timeenedisosw l-and l?? Within W-liichl thetu'mf bler may pivotito endl-out ofi latch-iri-'ggfposir tion.x Tumblerv 161 is oonstntly' urged intof latohing position by a leaf spring; 143i A 4As-capnbe'seelrfrom-thedrawincr;fthe tvvo 90'-E disesf: 13'? andl 117g the spacer dise 1%; and-'- the? tumbler 116? eige'v siii' secured Within tlief reeessf on selvedgge'by ineens oi? riyetsa which* entend through the' foregoing-f members: and

substantially the full length of the groove and engage tumbler 16. Upon insertion of the key into bolt 3 and rotation thereof with the key therein, the key will engage lever 16 and eject it from groove 14. This will permit spring 12 to withdraw boltk 3. I

In order to prevent rotationrof sleeve 4 the cylinder is formed with a pair of diametricallyV disposed longitudinal depressed ribs 23 arranged to slide in diametrically dis-- posed slots 24 formed in sleeve 4 and lock washer 10.

minimum number of parts employed and the simple construction of theseparts, may be manufactured very economically, particularly in large quantities.

To. install'the lock it is merely necessary to'drill'a single hole in each of thedoors one to receive the thimble or keeper and one to receive the lock. member need only be counterbored to receive the selvedge end of the cylinder thus eliminating the necessity of complex mortising.

In operation it is merely necessary to press bolt 3 until tumbler 16 engages in groove 14. That is, it is not necessary to insert a key or turn a bolt or cylinder to latch or lock the bolt.- Tounlatch the bolt it is merely necessary to insert the key and rotate the bolt after which the latter will be-Withdrawn by spring 12.

It is obvious that many changes-may be made in the details of construction without departing from the spirit and lscope of the invention as defined in the following claims.

I claim: 2

1. A sliding door lock comprising a cyl-y end-when in unlocked position, means for locking said bolt when in one position, and

a spring arranged to normally withdrawsaid.

bolt from extended position when unlocked, said locking means being releasable by a key upon rotation of said bolt with a key inserted therein.

' 2. A sliding door lock comprising acylinder, a sleeve telescopically mounted within said cylinder for reciprocating but non-roltating movements therein, a vslotted bolt within said sleeve, a lock washer engaging said sleeve and the slot in said bolt for locking said bolt to said sleeve whereby said bolt will be secured to said sleeve for reciprocating movements therewith and rotary move-- ments therein, said bolt extending beyond one end of said cylinder when in locked'po-1 The hole for the latter tion locked position, said locking means being releasable by :akey upon rotation of said bolt with said-key therein. y 3. A sliding door lock comprising a cylinder, an annularly grooved bolt mounted within said cylinderfor reciprocating movements beyond the other end when in unlocked position, a sleeve telescopically mounted within said cylinder and surrounding said bolt, a

spring arranged to normally withdraws-aid bolt fromextended position, and a lock washer arranged-to enter the groove ofsaid-bolt to lock said bolt to Vsaid sleeve for reciprocating movements therewith while permitting rotary movements therein.

4. A slidingdoor lock comprising a cylin-f der, a bolt having a'pair of annular grooves therein mounted within said cylinder for reciprocating movements therein `and adapted to extend beyond one-.end thereof when in locked position and the other end thereof when inv unlocked position, a sleeve telescopi'- cally mounted within said cylinder and surrounding said bolt, a spring arranged to normally Withdraw said bolt from extended position, a lock washer engaging one groove of said bolt to secure said bolt to said sleeve for reciprocating movements therewithand rotary movements thereinand a locking tuinbler arrangedto enter the other groove of said boltto lock said bolt in vextended posi! 5. A sliding door lock comprising a cylinder terminating. at one end in an enlarged selvedge, a bolt having a groove therein mounted within said cylinden for reciprocating movements therein andadapted to extend beyond one end thereof when in one position and the other end when in the otherposition, a spring arranged to normally withdraw said bolt from extended position and a pivoted locking tumbler disposed within said selvedge portion of the cylinder and arranged to enter said groove to lock said bolt in extended position. f f v 6. A sliding door lock'comprising a cylinder terminating in an enlarged selvedge, bolt having 'a' groove therein mounted within said cylinderfor reciprocating Vmovements therein and ,adapted to lextend beyond oneI end thereof when in oneposition and the other end when inthe other posi-tion, a spring arranged to normally withdraw said bolt from extended position, a pair of discs disposed within said selvedge portion, and a locking tumbler disposed between said discs and arranged to enter said groove kto locksaid-l bolt in `extended position, said. tumbler vbeing therein, said bolt extending beyond one end Y of said cylinder when in locked position and Y It is-obvious from the foregoing that there has been provided a lock which, due to the iso releasable by the insertion of a key in said bolt.

7 A sliding door lock comprising a cylinder, a supporting sleeve telescopically mounty ed Within said cylinder for reciprocating movements therein, a bolt having a groove therein rotatably secured Within said sleeve for reciprocating movements therewith, said bolt being adapted to extend beyond one end of said cylinder When in locked position and beyond the other end When in unlocked position, a spring arranged to normally Withdraw said boltJ from locked position and a locking tumbler Within said cylinderand arranged to enter said groove to secure said bolt in locked position, said lever being releasable .by a key inserted in said bolt.

8. A sliding door lock comprising a cylindrical casing terminating at one end in an enlarged circular flange having an annular rim extending therefrom, a bolt mounted Within said cylinder for reciprocating movements therein and adapted to extend beyond the flanged end thereof When in locked position and beyond the other end When in unlocked position, means disposed Within said ianged end for securing said bolt in locked position, and a spring arranged to normally Withdraw said bolt from extended position When unlocked.

9. A. sliding door lock comprising a cylindrical casing termin ating at one end in an enlarged circular flange having an annular rim Y extending therefrom, a sleeve telescopically secured to said casing, means for preventing rotation of said sleeve Within said casing, a bolt having a groove therein secured to said sleeve for reciprocating movements therein, said sleeve being mounted Within said cylinder for reciprocating movements therein, said bolt being adapted to extend beyond one end of said cylinder when in latched position and the other end When in unlatched position, a spring arranged to normally Withdraw said bolt from extended position, and a locking tumbler Within said cylinder` and arranged to enter said groove to lock said bolt in extended position, said tumbler being releasable by a key inserted in said bolt.

In Witness of the foregoing,I aflix my signature.

EDWIN W.V NORTH.

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