US1901412A - Lock - Google Patents

Description

March 14, 1933.

\ w. A. RICHTER LOCK Filed July 10, 1931 INVENTOR.

ATTORNEY}.

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. This ihventibnj felate. "t o loclz s e e Aniobject of-lthisf invention 15 to previcle a highly simplifieajimrhyfiroof latch lock compxisinga single latch olt,andf having means fer p ke-venting sail. b ItJf i' m being retmetedi by thepuse, .of 1a.; jimmy, regardless of mniguhption of dQQ rz itself, the 06118 stniction fh pthe r mom permitting the bolt ta l'jereadily aciuat' by ake d'oon knob; I01? keytumblen;

A gfu'fthelv ohjebte bf 'this i n'Ve-ntlen .tp pnox ide a. neat, compact. ,andi' ugged lock j of the character descriheiwwhich shall.loe eonr willhe inftlidcdnsitfuctionhere inaiter d eSeribei -apd qf" which the scope of; applitiatlibn will: indieate'd." 1

l'ow'nignclaimsl A In-htheiaecbmp jying jdrawingj inwhich is shbwn one of thek VamQpsT oSs'ible embediments'ofthis invel'iti'on,

Rig 1 is ,an hprizon t al; I l ongitudin lf sectipnaljiew fia dbor'. rb'vi'cldfwlth'albck q y ih i w d i' e Fig; 2 -is a 'grossgseqti'ppal f 'ew tziliexi on 2+' E gd'sian i he Fi 3145 a c o S-siectinnawiew taken on lin szf qirFifg-l 2 I Referring. now in detail to fihe drawing, 10 designates-a dbqr' or. other member to (be retained in CIOSQdpOSi tiOIQ and 11" regresents' the} door .iamb 170 which". the "member '10'iis to Be, fastened Attaehedto thecl'o'ox; 'lOin ny suitable manner: isfz -fl'qck ba'sijng 12; here shown for; purpse.bfiillustmtion only; as being embedded" within a; recess-"firmed in the d qonfiftg 'Bei g' f un'd'er s t-ood; however, that 1 the jlbclij may be attached Ito the. outer sliffsice .qife-damn the weu known manwall; 15', preferably flush withithehiitened g e' 16 0f the door. A cover memben l8 mayibel attache clffcoltherear ofj the-casi g'm the@ usual manner, for] metai'rlifig the conterltslfi thereof in proper position.

I Mounted Within, Julie. ca-silig; l2yi a-Qsi'rigl'e v latch bolt-18a adil'pjzegl'fto'Prpjctifilipohgha s'uit-able opening 191 in 'isakllenaiWilli 15; The bolt", 1 181i is plieffe'lnably 5d; Withg} 59 whereby fthe, bolt ,ljmy' he ,refbfl'lic tved 1 119011; Striking the; p diesc i fi z her n ft r-1 a The ,rear oiithe. bolt iSQfbrmedLWit'li pailof. ears; on side lext'lisimi s 21. and 22ueX11endQ-1 ingfl ithin a ho sing fol medz Within fsaicl engage 1118mm 2x and. 22,; to; limit theme 10 wa rcl m0vement.; ofithe'. bolt A; coil compression spring '27 Suitably stippeytged') Within the housing. 24 rearwardly offf' 100111 1841, serves; to! p170] the. 501i 00 the position shown i'n liigi'.

"24 mndfthrough vwhich-tlie 101011;. 18a r jQet'S,

is preferably iovicled withls'pme c ea-rance to permit said bolt I821. 130 ha ve-,7 a. slight pivgtalmovement ahelit the regL-n 'exi-dgther e 4 9 of. in ahorifz'omalj plane fo the}, ;p 1 1rp 0se 1 hereinafft xifappearing.; v The swi g; 27;? 9b; viously' vxiorrnallyr urge; .tahe. 1 extens i pns; I 21 Wall portion 31 c0ntztebingthe rear su.1:.- fate "32 of said bolt,- and serving: to @hmit the pivotal mevementef saidi bolt-toward thecover' 18 A'leaf spring 35 fixecl 'to the I ixinel" surface, Of 'the' front: Wall 15, 01' te hereinafter appearing.

said bolt for normally urging the bolt against said wall portion 31.

Attached to the door jamb 11 is 'a keeper 40 comprising a plate 41 attached to the outer edge of said door jamb, and having an opening 42 therein, for receiving the forward part of the bolt. Attached to or formed integrally with said plate 40 is a housing 43 into which the forward portion of said bolt is adapted to project. The plate 41 is provided with a projecting edge portion 44 and the front surface 37 of the bolt 18a is formed with a number of teeth 45 adjacent the outer end thereof adapted to engage said edge portion 44 for the purpose From the' description thus far, it will be seen that if a jimmy were inserted between the door and the door jamb for retracting the bolt 18a, said jimmy would"necessarily contact the rear-surface of the bolt and pressfthe same againstthe edge portion 44 toprevent further retraction of the bolt.

It will be noted that the opening 19in said front wall, 15 is of sufficient width to permit a slight pivotal orlateral movement ofthe boltv necessary for causing engagementfbe tween the teetl 45 and the edge portion 44.

. The prevention'of unauthorized opening of the lock by means of the jimmy insured since'the bolt can only be retracted by Ines sure exerted on the bolt, andsuch pressure necessarilycauses interengagement between the teeth 45'and'the edge portion 44. Thus,

pullingthe door rearwardly while actuating the jimmy will notpermitthe bolt to be retracted. w I j "For normally retracting the bolt'18a, however, there is provided the usual knob pivoted to the front wall 13 of the casing and provided with an arm 51' adapted to engage a projection 52 formed on said bolt, so that upon rotating the knob 50, said arm will engage said projection for retracting the bolt. The bolt is further provided with a slightly camrned portion 53 adjacent said projection '52, so that upon rotating the knobffor retracting the bolt, engagement between the arm 51 andsaid cam 53 will push the bolt toward said wall 31' and away from the edge portion 44 to insure proper actuation of the lock, Obviously the spring 35 likewise retains the bolt out of engagement with said edge portion 44.

The usual key tumbler mechanism 54 may also beprovided, whereby the bolt may be retracted by use of a key. The lug 55a of arm'member 55 associated with said tumbler mechanism, is adaptedto be rotated into contact with projection,-'52' for retracting the bolt. The spring 27insures proper project-ion of the bolt after the knob hasbeen released or the key removedfrom 'the tumbler. Also .thedoor maybe slammed in the usual man r, the amped portion 20 striking the curved portion 56 of the plate therewith, that the teeth 45 will engage the edge portion 44 to lock the bolt against retraction. 'Upon inserting a key into the tumbler andturning the same, the boltwill be retracted]withoutretardation since no external pressure need, beextended toturn th'ekeyJ Y 'A dominant feature of'theinventioni's the'provision of a latch lock having asing'le belt, which may be normally actuated] by means of a knob-or a key, and which will be jimmyproofi;that is, the bolt will engage a fixed portion of the keeper to prevent the retraction thereof upon exertionfof' pres= sure on said bolt. The provision of the slight pivotalor transverse movement or play for the bolt itself permits engagement of the teeth 45 with the edge portion 44.'a1 1 rhentt the 'applic'ationflof a'jim'my to the bolt will necessarily cause the locking of the bolt.

It will thus blJSQQIl th'at there is provided adevice in which the several objects of this invention are achieved, and which is well adapted to meet Asjvarious possibleembodiments; might be made of the aboveinv'ention, and asvarious the "conditions of practical changes might be made' inlthe embodiment above set forth, it is to be understood that all matter herein set forth or shown in the accompanying drawing is to be interpreted as illustrative and not in a limiting sense. Having thus described my invention 1 claim as new anddesire to secure byL'ett'ers Q 1. In a lock, casing adapted to be ed on'a door, a keeper adapted to be mounted on a door jamb, a latch bolt slidably. mount ed for longitudinal movement within: said casing, and having a, ramped portion on one face thereof adapted'to engage [the keeper to permit the door to be s'lammedfshnt, said bolt being adapted to inove'transversely o f said casing and ha' in-ga portion ontheo posite face thereoffor engaging'a port on of the keeper uponbeing transversely moved.

2. In a look, a casing adaptedto befmounted .on a door, a keeper adapted to be mounted on a door jamb, a latch boltslid'ably mounted for longitudinal movement within'Said casing, and having. a ramped portion on; one face thereof adapted to engage the keeper to permit the door to be slammed shut, s'aid bolt being adapted tomove transversely of said casing and having a portion on the opposite face thereof for engaging aportlon of the keeper upon being transversely moved, and resilient means for normally retaining the bolt out of engagement with said portion of said keeper. 7

3. In a look, a casing adapted to be mounted on a door, a keeper adapted to be mounted on a doorjamb, a latch bolt slidably mount-- ed for longitudinal movement within said casing, and having a ramped portion on one face thereof adapted to engage the keeper to permit the door to be slammed shut, said bolt being adapted to move transverselyand having a portion on the opposite facethereof for engaging a portion of the keeper upon being transversely moved, manualmeans for retracting the bolt, and means associated with said first mentioned means and bolt for moving the bolt transversely out of engagement with respect to said portion of said keeper upon actuating said first mentioned means. j

4. In a look, a casing adapted to be mounted on a door, a keeper adapted to be mounted on a door jamb, a latch bolt slidably mounted for longitudinal movement within said casing, and having a ramped portion adapted to engage the keeper to permit the door to be slammed shut, said bolt being adapt-' ed to be moved transversely of said casing and having means for engaging a portion of the keeper upon being transversely moved, resilient means for normally retaining said bolt out of enga ement with said portion of said keeper, and manually actuated means for moving said bolt out of engagement with respect to said portion of said keeper.

5. In combination witha casing, a latch bolt mounted therein for longitudinal movement, said bolt havinga ramped portion on one face thereof, a keeper adapted to be engaged by said ramped portion, said keeper being provided with an edge portion adapted to releasably engage a groove in an opposite face of said bolt, said bolt being movable transversely of said casing into engagement with said edge portion of said keeper.

6. In combination with a casing, a latch i bolt'mounted therein for longitudinal movement, said bolt having a ramped portion, a

ramped portion upon slamming the door,

said keeper being provided with a portion adapted to engage a portion of said bolt, said bolt being movable transversely into engagement with said (last named portion of said keeper, a cam on said "bolt, a knob mounted on said casing, means on said for actuating said cam to move said bolt away from said last named portion of said keeper, and resilient means within said casing for normally retaining said bolt out of engagement with respect to said last named portion of said keeper. 7 V

8. -Ina latch look, a casing, a bolt within said casing, and projecting therefrom, means for supporting said bolt for sliding and pivotal movement of said bolt in a-horizontal plane, said bolt having ar'amped portion on i one face thereof and a plurality of teeth on the opposite face thereof,and a keeper having an edge portion to engage said teeth to prevent retraction of said bolt into said casing.

9. In a latch lock,a casingadapted to be i mounted on a door, a keeper adapted to be mounted on a door jamb, a bolt 'slidably' mounted for longitudinal movement within said casing, and having a ramped portion adapted tov engage the keeper to permit the door to be slammed shut, resilient means for normally retaining said ramped portion of i said bolt in projected position whereby said ramped portion may be received within said. keeper,.said bolt being mounted for transverse movement with respect to the casing and having a portionadapted to engage an edge portion of the keeper upon being transversely moved, resilient means for moving said bolt transversely out of engagement with said edge of said keeper, manually actuated. means for retracting said bolt, and

cam means associated with said bolt and manually actuated means for moving the bolt out of engagement with said edge of said keeper prior tothe retracting movement of said bolt. i In testimony whereof I WILLIAM A. RICHTER.

keeper adapted to be engaged by said ramped portion, said keeper being provided aflix my signature.

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