US1777776A

US1777776A - Door lock

Info

Publication number: US1777776A
Application number: US227689A
Authority: US
Inventors: Frank J Van Dooren
Original assignee: CHESTER A GOSSETT
Current assignee: CHESTER A GOSSETT
Priority date: 1927-10-21
Filing date: 1927-10-21
Publication date: 1930-10-07
Anticipated expiration: 1947-10-07

Description

Oct. 7, 1930. F. J. VAN MVDOOREN 1,777,776

DOOR LOCK Filed Oct. 21, 1927 3 Sheets-Sheet l Oct. 7, 1930.

F. J. VAN .DOOREN DOOR LOCK Filed Oct. 21, 1927 3 Sheets-Sheet 2 Oct. 7, 1930. F. J. VAN- DOOREN 1,777,776

oooa LOCK Filed 001:. 21, 1927' '5 Sheets-Sheet s 7a arez 'yg,

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- I aktomg 30 panying drawings, in which Patented Oct. 7,:1930

Y U T STAT S PAT ToI-" I E FRANK J. VAN noonnnbn oA nnNn, GAL-reclaim; nssIGNoR brown-FIFTH TO 7 CHESTER-1A. eossn'rr, on sANLEANnno, CALIFORNIA 1 7 77 noon Look A l antsiiieulotober2i,- 1927. SeriaINo. 227339.

My invention'relates' to combined latch and lock particularly designed-for usecon outside doors, l

p An object of the invention is to provideai' 7 look ofthe classdescribed which maybe locked o -from theinner' sidethereof by and uponan appropriate manipulation of the" bolt-withdrawingmember at said side wherebyga normally operative thumb latch at the outer sideof the doorinay be rendered inoperative; a 1 7 7 Another object oftheinvention is to pro videa lock of the character described having key-controlled means operative from the outer side of the door for restoring the oper ativene'ss 0f the bolt-withdrawing member at said side. 7 r 7 A further object of thejinven-tion is to profvide a lock otthe character described in which the key-controlled means may be dircctly utilized for withdrawing the bolt.

Agstill further object of the invention is to provide an improved and simplified structure" fora lock of the type described. 7 The invention possesses other objects and featuresof advantage, someof which, with the foregoing, will be set forthin the following description'of a preferred form of the invention which is illustrated in'the accoin Figure 1 is a plan view of the lock in nounted relationto a door and its'associated Figure 2 is a view taken'on the line 2-2 in Figure'l, and drawn at a reduced scale, the

doorjbeing in section.

Figure 3isa plan view ofa key-controlled lock portion therein .7. 7 77 Figure 4 is a fragmentary outside face 7 view of the lock.

r i Figure 5 is aside sectional View" through the lock with theparts thereof normally disposed. r

Figure 6 a the lock withthe bolt iii'withdraw'n position as by a force applied directly thereagainst.

fFlg'llIG witha key operatively disposed is asidesectional View of the structure showing the I relation 'of. the parts is a side sectional view through '7 ative frorn-the innerjside of the door.7{ Figure 8 is a fragmentaryside sectional view ofthe lock showing the relation of the parts when the bolt iswithdrawn by means when the boltis withdrawnby meansoperi I i of the door.

structure showing the appropriate parts disposed for preventing'the 'withdrawal er a the bolt bythe thunib latch. 7

Figure 101is a sectional VlGW' taken line -"'1O -10in' Figure 5 7 7 r n Figure 11 is a sectional view'taken onpthe line11-11 in Figure 6. l

of a thumb latch operablefrom the outer side Figure 9 is a side sectional view ofthe lock ba he Figureslfland 71's ares'ide and endviews t 77 1 portions of the lock casing.

Figures 14 and 15: are side and end views of a movable latch cylinderforrning partof the lock structure. 7 7 7i Figures 16 and 17 are side andend views of a latch cylinder portion providing a mountingfor thelatch-bolt'. 1 7 v Figures 18 and 19 are 'sideiandjendviews of a portion ofthe latch structure.7 3 Figures 2O and 21 are side of the latch bolt of the lock. 77 7 Figures 22'and 23; are side and end viewsof a knob spindle for operating the lock.

Figures 24 and 25 are views of a lever forming partof theoperating structure. 7 i

a a and end views Y Figures 26 and 27 are face and edge views 1 of an edge plate formingplartiofthe lockcas 7 111 7 7 7 a r r i l3riefiy, the lock 28 of my invention comprises a'casing29 arranged to be mounted in theedge portion- 31 of a door 32, and a movaa ble latch member in the formof a hollowcyl inder 33 reciprocable in the casing and normally positioned to dispose a latch bolt 34 carried thereby in extended position. .A spindle 36 isdisposed through the casingiand latch cylinder, said r from the innerside ofithe lock, 1 the withdrawaliofthe latch cylinder orlocking it against withdrawal as.;may bedesired, whilela'thninb latch 37 is provided for effecting the withdrawal ofthe latch cylinder from thejouter side of'the door, eziceptwhen the spindle is disposed in its 1 locking: position spindle beingJoperableT for effecting 7 to the latch cylinder.

Key-operated means are also provided for effecting a withdrawal of the latch plate, such means comprising a key-receiving barrel 38 arranged to be freed for rotation about its longitudinal axis only by and upon the insertion of a proper key 39 therein and operable upon the rotation thereof to displace the spindle from its locking position and to effect a withdrawal of the latch cylinder. The latch cylinder. is arranged to be resiliently urged to maintain its normal forward position by means of a spring 41 operatively interposed between it and the spindle 36.

The latch bolt 34 comprises a; head portion 42 of rectangular section having a beveled outer face 43, and a reduced stem portion 44 having radial flange 46 provided at the free end thereof. Fixed in the outer end of the latch cylinder 33 is a cylindrical plug'47 having an axial bore provided therein. for the sliding reception of the bolt stem 44. The plug 47 is preferably removably fixed to the latch cylinder, and as here shown the cylindrical plug face is provided with an annular groove 48 in which oneor more bosses 49 upset inwardly from the bore of the latch cylinder are arranged to engage. To provide for the engagement of the bosses 49 in the groove 48, axially directed channels 51 are provided in the plug surface to extend from the inner end thereof to the groove 48 and arranged to simultaneously receive the bosses 49 whereby the plug may be inserted in the end of the latch cylinder and thereafter be rotated to dispose the bosses in front of the rear groove edge. Preferably, and .as shown, the plug 47 is arranged to beheld in the latter relation to the latch cylinder by means of a pin 59. extending through the latch cylinder into the plug and having the head. thereof countersunkin the latch cylinder. In thisv manner, the plug 47 is held in releasably fixed. relation To provide for the disposal of the bolt portion 44 in the bore of the plug 47, the portion 44 is preferably detachably fixed to the bolt head 42. As herewith particularly disclosed. the bolt head is provided at its inner side with a socket 53 for the reception of the cooperating end of the stem 44, and the stem and head are fixed together by means of a pin 54 engaged transversely-through the stem and head. The space between the bolt flange 46 and the head 42:is arranged to exceed the axial length of the plug 47 by an amount substantially equaling the desired reach or extension of the bolt from the lock and into the bolt socket 54provided in the door iamb 56,. whereby, with the latch cylinder in its normal position, a, retractive movement of the bolt head for disposition within the loo]: is permitted, such relation being particularly shown in Figure 6. T i

. The casing 29 it will nowbe noted, comprises a tubular shell 57 having the bore thereof provide the guideway for the movable latch-plate 33 and an edge plate 58 fixed transversely across an end of the shell 57 and provided at points thereof lying outwardly of the shell 57 with screwholes 59 whereby it may be fixed to and against the door edge. The plate 58 and shell 57 are preferably detachably associated, and as here shown, the former is provided with a rearwardly extending portion 61 arranged fora sliding engagement in the bore of the shell 57 at the extreme end thereof. hen, as is here shown, the shell 57 is cylindrical, the

portion 61 would be of like form and a device fixing the plug 47 such as that employed in 7 be employed in in. the latch cylinder 33 may the manner shown. It is noted, however, that in this case no pin is needed for preventing the relative rotation of the shell and plate, as these members are both held against any rotative movement when the lock is mounted on a door. The plate 58 at the portion 61 thereof is perforated therethrough to slidably receive the bolt head 42 and is of such thickness that'the bolt head may be entirely disposed in the perforation thereof, it now being noted that the inner face of the portion 61 provides a stop to limit the outward movement of the latch cylinder 33.

The spring 41 does not directly engage either the latchcylinder 33 or the spindle 36 but is engaged, rather, between the flanged inner end of the latch bolt 34: and a member 62 which engages the spindle. The member 62 is generally cupshaped, is longitudinally slidable in the bore of the latch cylinder and is provided with a spherically curved outer end surface 63 for engagement with the spindle 36.. The cavity 64 of the member 62, it is noted, is arranged to receive a major portion of the spring 41 and the bore thereof is preferably such as will freely receive the flange 46 of the latch bolt whereby under certain conditions to be hereinafter brought out, the annular forward edge 66 of the member 62 may directly engage the inner face of the plug 47. lVith the structure provided, it will now be obvious that the spring 41 will normally function to forcibly and yieldingly hold the latch bolt in its extended position with the flange 46 thereof engaging the in; nor side of the plug 47 as a stop as is shown in Figure 5, and that an inward displacement of the bolt is permitted as when the bevelled face 43 of the bolt head engages a jamb plate 67' at the socket 54, the door is closed, such displacement of the bolt being indicated in Figure 6.

The thumb latch 37; it will now be noted, comprises a lever 68 disposed through and fulcrumed on an escutcheon plate 69 fixed on the outer face 71 of the door opposite the lock mechanism. Fixed on the door surface below. the thumb latch is a handle 72 arranged to provide a grip for the fingers for bearing at its upper side. Pivotally mounted on a pin 73 extending horizontally and trans versely of the casing portion 57 adjacent the lower side and inner end thereof, is a bellcrank lever 7 4 having an arm 76 thereof disposed withinnthe area of the latch cylinder 33 between the member 62 and the innerend wall 77of the latch cylinder, it being noted that the arm 7 6is normally; disposed generally vertically and is arranged to maintain an engagement with thewall 77 at all times.

a "The otherarm 78 thereof of the lever 74, de-

pends forwardly ofthe pivotalaxis into the path ofmovem'ent of-the inner end'of the latch lever 68,the latter having adjustably mounted on the inner side thereof a member" 79 providing a convex surface 80 against which the end of thel'ever arm 78 is arranged to slidably engage as the latch lever is rocked. In this manner,a1roperative r0cking of the latch lever68 is arranged to rock the bell-crank lever 74, Fig.8, to forcibly en-p gage the arm 76 of the latter against the latchcylinder end wall 77 andso effecta retraction of thelatch cylinder andbolt against the resistance of the spring a1. To permit the retraction of the latch cylinder inthe manner described, the perforation 79 of the latch cylinder through which the pin extends is so shaped that a reciprocation ofthe latch cylinderequal to thenecessary movement of the latch bolt between its fully extended; and

fully retracted positions is permitted. The

relationof the parts when the bolt is retracted by means of the thumb-latch is particularly shown injFigure 8.

1 its axis horizontal and ex'tending transverse shaped as to permit the The spindle 36, ittwill now be noted, is

journall'ed in the casing'shell"portion-57 with ly of and below the axis-of the latch cylinder.

Extending. radially from the spindle is an arm 81, which arm is arranged to be normally disposed upwardly from the spindle axis and in engagement with and between the member 62 and the lever arm 76; In this manner a rotation of the spindle to force the arm 81backwardly and against the arm 76 movement of the latch cylinder independently of the disposition of the thumb latch lever, it being noted that the perforation 79 is so a passage of the spindle 36 through the latch cylinder and the necessary movement of the latch cylinder with respect to said spindle. The relation of Yet the parts whenthe latch bolt is withdrawn bymeans of the spindle is shown in Figure 7. It will now be clear that a withdrawal of i the latch bolt may normally be'efi'ected either] i 1 through appropriately rotating the spindle by means of a knob82 carried atan end thereof which protrudes from the inner side of the outer; side of the door.

door, or by means ofthe thumb latch 37 at-the v a When, however,it is desired tolock the door against a retraction ,of the latch cylinder bymeans of the thumb the spring alto dispose the edge '66 of the 'meinber 62 adjacent the inner faceof the plug 17. Preferably, and as herelshown, the arm 81 is arranged. tobe passedthrougha. dead-centerf positionwith respect to the member 62whereby it will stay in a set posi-r tion against the'rnemberwhen the torque "on the spindle is thereafter relieved, it" now be ing noted. thatthe convexity 0f the surface 63 is providedlto' assist in maintainingnthe arm 81 in such setrposition. With the arm '1 81 set as "described, the engagement of the. edge 66 with the plug 47 functionsftorprevent the withdrawinglmovementiof the latch cylinder which is normally permitted,:so that thethumb latch isrenderedinoperative for opening the door. It will thus be clear that in order to preventanopening of the door from the outsideby means of the thumb latch, it

is merely necessaryto rotate the spindle in a direction opposite from a door-opening rotation and through an angleapproizimating ninety degrees to set the member 62 as-a stop against a retractionflof thelatch cylinder and bolt by "means of the thumb latch,

such setting of the member 62 beingpartic ularly illustrated in "Figure 9 x a H "Since the present ;lock is particularly designed 'for'use on trolled means are provided for eifectinga re mounted on the *escutcheon plate 69 Withthe axis thereof in substantial alignment with that of the spindle 36., a A radial: arm 82'is provided on the inner end oi the 'barrel 38,

while extending outwardly from theoppojse dspindle end in the path of,movement of the; n

31 1 82 is a projection 83 of the spindlewhich is eccentrically ofi'setifrom they axistof'theg it latter. As herewith;particularlvshown, the

projection 83 is providedadjaoent the: outer" i edge of an integral anddisclike end portion 84ofthe spindle. 'Itwill now bejiioted that withthe key 39 disposedin thebarrel" 38 for releasing the same, an appropriate rotation. of the barrel is arranged to so engage the arm 82 of thebarrel with the projection '83. of the spindle that the spindle will be rotatedto displace it from its latch looking to its normal 7 position, after which a continued rotation of the barrel 'byxneansof the key will act cylinder for movement through the spindle to effect a withdrawal of the latch cylinder and bolt as by the opera-- tion of the.- spindle by means of the knob. Since the first movement of the key-controlled barrel restores the spindle to its normal posit-ion, the thumb latch may thereafter be used instead of the key: for Withdrawing the bolt. In this manner,- akey-controlled means is provided which is operative both to release the latch cylinder and to effect a withdrawal thereof.

I claim:

1. In a. lock, av movable latch cylinder, a bolt normally projected carried by said latch relative thereto, means. engaging the bolt operative to resiliently urge said latch cylinder to maintain a position to dispose saidbolt in extended relation from the; lock, a thumb latch operablefrom oneside of'the lock to effect a retraction otsaid latch cylindereand bolt, and a knob spindleoperable from the other side. of said lock to: effect a retraction of said latch cylinder andbolt.

2'. In a lock, anormally projected'movable latch member, abolt carried thereby, a lever operableagainst said member for effecting a retraction thereof, a thumb latch operative against said lever" for" effecting said retraction, and a knob s 9indle'operative when rotated in one direction for effecting'said retraction of the member and; when rotated in an opposite direction to render said thumb.

latch inoperative to retract the latch member.

In a:loek,.a normally projected movable latch member, a bolt carried thereby, a lever operable against said member for effecting a retraction thereof, a thumb latch operative against said leverfor effectingsaid retraction, and a knob spindle operative when rotatably displacedinonedirection to rock said leverfor effecting the retraction of the member-end when rotatably displaced in an opposite direction to lock said member against retraction by said lever.

4. In a lock, a normally projected movable latch member,abolt carried thereby, a lever operable against said member effecting a retraction thereof, a thumb latch operative against said lever for effecting said retraction thereof, a knob spindle operative when rotatably displaced from its normal position- 1n one dlrection to rock said lever for effect-.

ing the retraction of the member and when rotatably displaced in anopposite direction' to become set to lock said member against retraction, and key-controlled means operative to restore said spindle to its normal position.

5*. In a lock,.a normally: projected latch member, a bolt carried thereby, a knob spindle operative from one side of said lock for effecting a retraction of said member and key-controlled means operative from the other side of said lock for operating said spindle to retract said member.

6. In a lock, a normally projected latch member, a bolt carried thereby, a knob spindle extending from a side of the lock and operative upon a rotation thereof in one direction for effecting a retraction of said memher and upon a rotation thereof in another direction to become set a stop to lock said member against retraction, and key-controlled means operative from the other side of said lock for displacing said spindle from its set position to a position for retraction of said member.

7 In a lock, a normally projected movable latch member, bolt carried thereby, a lever operable against said. member for effecting arretraction thereof, a thumb latch operative against said lever for effecting said retraction thereof, a spindle having an arm operative when rotatably displaced from its normal position in one direction to rock said lever for retracting said member and when rotatably displaced inan opposite direction to be disposed to lock said member against retraction, means automatically operative to yieldingly retain said arm in said locking position, and key-controlled means operative against said spindle to rotate the same for releasing said arm and effecting the retraction of said member.

8. In a look, amovable latch member, a normally projectedbolt carried by said latch member for movement relative thereto, means engaging the bolt to resiliently urge said member to maintain a position to dispose said bolt in extended relation from the lock, lever means operable from one side of the lock to effect a retraction of said latch member and bolt, and a knob spindle operable fromthe other side of said lock to effect a retraction of said latch member and bolt.

In testimony whereof, I affix mv signature;

FRANK J. VAN D OOREN.