US3899906A - Lock mechanism - Google Patents

Lock mechanism Download PDF

Info

Publication number
US3899906A
US3899906A US444955A US44495574A US3899906A US 3899906 A US3899906 A US 3899906A US 444955 A US444955 A US 444955A US 44495574 A US44495574 A US 44495574A US 3899906 A US3899906 A US 3899906A
Authority
US
United States
Prior art keywords
bolt
lever
roller
casing
latching
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US444955A
Other languages
English (en)
Inventor
Richard L Bradstock
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Adams Rite Manufacturing Co
Original Assignee
Adams Rite Manufacturing Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Adams Rite Manufacturing Co filed Critical Adams Rite Manufacturing Co
Priority to US444955A priority Critical patent/US3899906A/en
Priority to ZA00751011A priority patent/ZA751011B/xx
Priority to CA220,351A priority patent/CA1016975A/en
Priority to FR7505172A priority patent/FR2262179B1/fr
Priority to GB6944/75A priority patent/GB1489314A/en
Priority to SE7501895A priority patent/SE399095B/sv
Priority to DE19752507547 priority patent/DE2507547A1/de
Application granted granted Critical
Publication of US3899906A publication Critical patent/US3899906A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B63/00—Locks or fastenings with special structural characteristics
    • E05B63/0013—Locks with rotary bolt without provision for latching
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/1043—Swinging
    • Y10T292/1075—Operating means
    • Y10T292/108—Lever
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/50—Special application
    • Y10T70/5093—For closures
    • Y10T70/5155—Door
    • Y10T70/5199—Swinging door
    • Y10T70/5246—Dead bolts
    • Y10T70/5296—Single
    • Y10T70/5345—Swinging
    • Y10T70/5363—Key operable only

Definitions

  • ABSTRACT A lock mechanism particularly for doors having a narrow stile, wherein a unique arrangement of components provides greater security and facilitates manufacture and installation, as characterized by a heavy pivotally swingable bolt connected at its inner end to one end of a rocker lever, the other end of the lever being formed with spaced end abutment projections between which a spring-urged latching detent is movably mounted for initial engagement and movement to a non-latching released position by an associated manually rotatable actuating cam extension prior to engagement with one or the other of the abutment projections to move the rocker lever in an appropriate direction for actuating the bolt to its locked or unlocked position.
  • a feature also resides in the use of an insert type of key-operated lock cylinder assembly rather than an assembly of the threadedly mounted casement type, thus enabling use of a relatively thicker cam extension which can be straddled during a portion of its movement by the associated end of the rocker lever.
  • the lock mechanisms as disclosed in these patents are in the main designed for use with key-actuated lock cylinder assemblies of the casement type, and which are threadedly secured to a side plate of the lock mechanism casing.
  • the rotatable cam extension is of relatively thin material and is arranged to operatively engage abutment means and detent means on one side only of an elongated actuating lever that is pivoted at one end for swinging movement and has its other end connected by a pin and slot connection to the inner end of a swingable bolt.
  • the cam extension is positioned between the ends of the actuating lever, and the lever as arranged requires a relatively long throw to actuate the bolt.
  • the present invention relates generally to lock mechanisms, and is more particularly concerned with improvements in lock mechanisms of the type used for doors having a narrow stile.
  • a further object is to provide a lock mechanism of the foregoing character which utilizes a rocker lever for producing a relatively short throw for operating a swingably pivoted bolt connected with one end of the rocker lever, and in which the other end of the lever is operatively connected for operation by a rotatable cam extension of an associated lock cylinder assembly.
  • a further object is to provide a lock mechanism as in the foregoing, in which the end of the rocker lever associated with the lock cylinder is formed with integral spaced end abutment projections between which a spring-urged latching detent is movably mounted for initial engagement and movement to a non-latching released position by the cam extension prior to engagement with one of the abutments to move the rocker lever and actuate the bolt.
  • Another object is to provide a lock mechanism in which a bolt actuating lever is pivoted for rocking movement, and is arranged at one end to centrally straddle the cam extension of an associated lock cylinder assembly during a portion of the cam extension movement, so as to apply actuating forces substantially in the plane of the actuating lever rather than adjacent a side face of the lever.
  • Still another object is to provide a lock mechanism according to the foregoing in which the actuating lever is operable by a cam extension of a lock cylinder assembly of the insert type, rather than a threadedly mounted lock cylinder assembly of the easement type.
  • FIG. 1 is a perspective view of a lock mechanism embodying the features of the present invention, together with an associated door jamb;
  • FIG. 2 is an enlarged longitudinal sectional view, taken substantially on line 22 of FIG. 1, showing the cooperative relationship of the lock components, the bolt being in extended locked position;
  • FIG. 3 is a view similar to FIG. 2, except that the bolt is shown in retracted unlocked position;
  • FIG. 4 is a fragmentary sectional view, taken substantially on line 4-4 of FIG. 5, showing details of the mounting for the cam roller detent at the end of the actuating rocker lever;
  • FIG. 5 is an enlarged longitudinal section view, taken substantially on line 5-5 of FIG. 2
  • FIG. 1 a lock casing which is designated generally by the numeral 10.
  • This casing is stamped or otherwise formed to provide two sections which are staked or otherwise interconnected to form a substantially closed housing within which the lock mechanism is contained between side wall portions 11 and 12.
  • a face plate 13 is removably attached by means of suitable screws 14 to an integrally formed upper casing lug l5 and an integrally formed front wall 16.
  • This face plate is formed to provide a rectangular slot or opening 17 having registration with an opening 18 of the casing front wall, and through which a bolt structure 20 is movable to retracted and extended positions, as will hereinafter be explained more fully.
  • the bolt structure 20, in its locked or extended position, is adapted to extend into a suitable opening 21 formed in an edge face 22 of an associated jamb or another door 23.
  • the bolt 20 is shown as a laminated structure in which a plurality of metallic plates 24 are secured together in overlying relation by means of suitable rivets 25 or other conventional means.
  • the bolt is pivotally mounted for swinging movements through an angle of substantially 90 between its extended and retracted positions, a pivot pin 26 extending throughthe inner end of the bolt and having its opposite ends ridgedly supported in the side walls 11 and 12, respectively.
  • the laminated bolt includes five plate members, the central plate being terminated short of the bolt pivot 26 to provide an intermediate inner end space 27.
  • the plates lying on the opposite sides of this space are apertured to receive the pivot pin 26 therethrough and support the bolt for pivotal rotation.
  • These plates are further provided on each side of this space with a generally L-shaped slot 28, and which are aligned transversely of the bolt.
  • Each of these slots has dwell positions at its ends as indicated by the numerals 29 and 30, respectively.
  • the slot 28 is oriented so that its long leg extends in a direction generally transversely of the bolt, while the short leg of the slot is more nearly aligned with the longitudinal axis of the bolt.
  • the bolt 20 is actuated between its retracted unlocked position and extended locked position by means of an actuating rocker lever 31 which extends longitudinally of the casing and is supported between its ends on a pivot 32 for rocking movement.
  • One end of the lever 31 extends into the space 27 of the bolt and carries a transversely extending pin 33 having its ends respectively positioned on opposite sides of the lever and extending into the bolt slots 28, 28 for movement therein.
  • the rocking movement of the lever is thus constrained, and the slot 28 is so shaped as to accommodate relative movements of the pin and the bolt during operative movements of the actuating lever in moving the bolt between its retracted and extended positions.
  • detent means associated with the other end of the actuating lever 31, which includes a cam roller 34 as best shown in FIG. 5.
  • the roller is provided with a circumferentially extending groove 35 intermediate its ends which forms a portion 36 of reduced diameter, this portion being slidably movable within an inner end portion 37 of an end opening T-shaped slot (FIG. 4) as provided in the other end of the actuating lever 31.
  • An outermost end 38 of the slot is of increased width and provides an end opening space which separates integrally formed end projections 39 and 40 which lie on opposite sides of the roller 34.
  • the outennost ends of the roller 34 are formed to provide axially extending end projections 41 and 42 of reduced diameter, and which are respectively positioned for movement in arcuate slots 43, 43, respectively, formed in the side walls 11 and 12 of the casing.
  • Each slot 43 has dwell notches 44 and 45, respectively,
  • the roller 34 normally extends into the space of the slot end portion 38 between the end projections 39 and 40 and is biased in an outward direction in the slot by means of a coiled spring 46 placed on each side of the actuating lever 31, one end of the coiled spring being secured to an anchor pin 47 carried by the lever, and the other end of the spring bearing against and seated in a circumferentially extending groove 48 formed in the end portion of the roller 34.
  • the roller end projections 41 and 42 will be biased into the dwell notches 44, 44 in the extended position of the bolt 20, and into the dwell notches 45, 45 in the retracted position of the bolt, as respectively shown in FIGS. and 3.
  • a con- I ventional key controlled lock cylinder 50 which is preferably of the insert type rather than the casement type which is threadedly mounted in the casing of the lock mechanism.
  • the insert type is available in a single form accessible form one side of the door or double form where it is desired to lock and unlock the door from either side of the door.
  • the lock cylinder has a body structure of generally keyhole configuration, the body having a cylindrical portion 51 and a radially extending depending projecting portion 52.
  • the body portion is insertable endwise through aligned keyholeshaped openings 53, 53, respectively, formed in the side walls 11 and 12 of the casing 10.
  • the projecting portion 52 extends between internal spaced mounting lugs 54 and 55.
  • the assembly is secured by means of a retaining screw 56 which is insertable through an opening 57 in the front wall 16 of the casing, this screw being adapted to extend through aligned openings in the lugs 54, 55, and threadedly embrace a threaded opening in the projection 52.
  • the lock cylinder assembly includes in its cylindrical body portion 51 a rotatable member 58 which carries a radially projecting cam extension 59 which is arranged to pass through an opening 60 in the body portion 52 during movement from one side to the other of the assembly body.
  • the cam extension 59 is of a width such that it will engage opposite end portions of the roller 34 during its rotative movement.
  • actuating forces will be applied in the plane of the actuating member 31 by engagement of the cam extension symmetrically with the end portions of the roller 34 on opposite sides of the lever end portion.
  • the cam extension 59 serves the dual purpose of initially releasing the latching detent and thereafter shifting the actuating lever from one of its latched positions to the other so as to motivate the bolt 20 from one position to the other.
  • the end projections 41 and 42 of the roller 34 are positioned in the dwell notches 44, 44, and the pin 33 is positioned in the dwell position 29 of the bolt slot 28.
  • the bolt 20 is therefore positively latched in its extended position. Should it be desired to move the bolt to its retracted position, the cam extension 59 would be rotated in a counter-clockwise direction until it reaches the position shown in dotted lines.
  • a locking mechanism for a movably mounted door having a relatively narrow stile comprising:
  • a casing structure positionable in said stile, said structure having an opening adapted to be positioned adjacent a vertical edge face of said stile; b. a bolt pivotally supported in said casing for swinging selective movement to a retracted unlocked position within said casing and to an extended locked position projecting through said opening; c. a bolt actuating lever pivotally supported between its ends in said casing for rocking movement, one end of said actuating lever being connected with said bolt,
  • said actuating lever having an open ended slot with a relatively wide outer end portion extending between spaced end abutment projections, and an axially aligned relatively narrow inner end portion;
  • latching means carried by said other end of said lever for releasably latching said bolt in its extended and retracted positions, including:
  • a spring-urged roller having a portion of reduced diameter between its ends supported for outward and inward movements in said narrow inner portion of said slot, said roller being normally biased to a latching position extending into the relatively wide outer portion of said slot;
  • manually operable means including an element swingably rotatable in opposite directions to initially release said latching means in both the extended and retracted positions of said bolt and thereafter rock said lever to selectively move the bolt from one of said positions to the other of said positions, said element being engageable with said roller and operative to move it to a non-latching position prior to engagement with one of said abutment projections.
  • a locking mechanism according to claim 2 in which spring members respectively positioned adjacent said opposite faces of said other end of said lever are respectively engaged with the opposite end portions of said roller.
  • a locking mechanism according to claim 1, wherein said element comprises a cam extension straddled during a portion of its swing movement by said other end of said lever and being of a width to simultaneously engage the opposite end portions of said roller.
  • a locking mechanism in which said cam extension is embodied in a key actuated lock cylinder assembly slidably insertable endwise into an operative position penetrating said casing and being supported by the opposite sides thereof.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Lock And Its Accessories (AREA)
  • Clamps And Clips (AREA)
US444955A 1974-02-22 1974-02-22 Lock mechanism Expired - Lifetime US3899906A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US444955A US3899906A (en) 1974-02-22 1974-02-22 Lock mechanism
ZA00751011A ZA751011B (en) 1974-02-22 1975-02-18 Lock mechanism
CA220,351A CA1016975A (en) 1974-02-22 1975-02-18 Lock mechanism
FR7505172A FR2262179B1 (sv) 1974-02-22 1975-02-19
GB6944/75A GB1489314A (en) 1974-02-22 1975-02-19 Locking mechanism
SE7501895A SE399095B (sv) 1974-02-22 1975-02-20 Lasmekanism for dorr med relativt tunn dorram
DE19752507547 DE2507547A1 (de) 1974-02-22 1975-02-21 Verschlussmechanismus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US444955A US3899906A (en) 1974-02-22 1974-02-22 Lock mechanism

Publications (1)

Publication Number Publication Date
US3899906A true US3899906A (en) 1975-08-19

Family

ID=23767059

Family Applications (1)

Application Number Title Priority Date Filing Date
US444955A Expired - Lifetime US3899906A (en) 1974-02-22 1974-02-22 Lock mechanism

Country Status (7)

Country Link
US (1) US3899906A (sv)
CA (1) CA1016975A (sv)
DE (1) DE2507547A1 (sv)
FR (1) FR2262179B1 (sv)
GB (1) GB1489314A (sv)
SE (1) SE399095B (sv)
ZA (1) ZA751011B (sv)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4127016A (en) * 1976-11-03 1978-11-28 Knud Ibsen Safety lock
EP0004849A1 (en) * 1978-04-17 1979-10-31 Adams Rite Manufacturing Co. Lock mechanism
DE2926519A1 (de) * 1979-01-05 1980-07-17 Seima Schliessriegel fuer schloesser, wie insbesondere diebstahlsichere schloesser fuer kraftfahrzeuge
US4373289A (en) * 1981-12-21 1983-02-15 Mattel, Inc. Toy trap door mechanism
US4604878A (en) * 1985-01-28 1986-08-12 Papaiz Of Canada Limited Latch actuator cam of door locks
US4663950A (en) * 1985-08-21 1987-05-12 Rayma Development Corp. Locking system for security door and window
US4688406A (en) * 1986-04-01 1987-08-25 Blumcraft Of Pittsburgh Deadbolt lock mechanism
US5052730A (en) * 1987-11-07 1991-10-01 International Business Machines Corp. Locking means for a gate in an automatic teller machine
US5098139A (en) * 1988-12-20 1992-03-24 Larsson Leif T High security lock and latch for sliding doors
US5452927A (en) * 1994-08-01 1995-09-26 Adams Rite Mfg. Co. Door latching and unlatching assembly
US5622065A (en) * 1995-11-06 1997-04-22 Persiano; Anthony M. Locking mechanism
US5636880A (en) * 1995-10-11 1997-06-10 Milocon Corporation Electronic lock
US6745603B1 (en) 2001-02-22 2004-06-08 Barry Shaw Electromagnetic integrative door locking device and method of installation
WO2005118988A1 (en) * 2004-06-01 2005-12-15 Yarra Ridge Pty Ltd Locks
GB2445419A (en) * 2007-01-05 2008-07-09 Adams Rite Europe Ltd Lock assembly
GB2445418A (en) * 2007-01-05 2008-07-09 Adams Rite Europ Ltd Lock assembly
US20090113955A1 (en) * 2007-11-06 2009-05-07 Blumcraft Of Pittsburgh Deadbolt device for a door
US20100123320A1 (en) * 2008-11-14 2010-05-20 Joseph Talpe Cylinder lock with pivotally-mounted bolt
US20120000257A1 (en) * 2010-07-01 2012-01-05 Adams Rite Manufacturing Co. Single and multi-point door lock
US20140225381A1 (en) * 2011-10-25 2014-08-14 Dirtt Environmental Solutions, Ltd. Cam style locks and systems and methods including the same
US20200332576A1 (en) * 2019-04-18 2020-10-22 Rockwell Security, Inc. Multi-pocket lock set

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4019350A1 (de) * 1990-06-18 1991-12-19 Brumme Friedrich R Gmbh Rohrrahmenschloss
DE4040467C2 (de) * 1990-12-18 1996-06-05 Manfred Kant Abschließbarer Behälter oder Kleingarage
DE102004046931A1 (de) * 2004-09-28 2006-04-13 Aug. Winkhaus Gmbh & Co. Kg Treibstangenschloss und Riegel für ein Treibstangenschloss

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2989859A (en) * 1958-08-29 1961-06-27 Adams Rite Mfg Company Narrow stile double bolt door lock

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2989859A (en) * 1958-08-29 1961-06-27 Adams Rite Mfg Company Narrow stile double bolt door lock

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4127016A (en) * 1976-11-03 1978-11-28 Knud Ibsen Safety lock
EP0004849A1 (en) * 1978-04-17 1979-10-31 Adams Rite Manufacturing Co. Lock mechanism
US4218903A (en) * 1978-04-17 1980-08-26 Adams Rite Manufacturing Co. Lock mechanism
DE2926519A1 (de) * 1979-01-05 1980-07-17 Seima Schliessriegel fuer schloesser, wie insbesondere diebstahlsichere schloesser fuer kraftfahrzeuge
US4373289A (en) * 1981-12-21 1983-02-15 Mattel, Inc. Toy trap door mechanism
US4604878A (en) * 1985-01-28 1986-08-12 Papaiz Of Canada Limited Latch actuator cam of door locks
US4663950A (en) * 1985-08-21 1987-05-12 Rayma Development Corp. Locking system for security door and window
US4688406A (en) * 1986-04-01 1987-08-25 Blumcraft Of Pittsburgh Deadbolt lock mechanism
US5052730A (en) * 1987-11-07 1991-10-01 International Business Machines Corp. Locking means for a gate in an automatic teller machine
US5098139A (en) * 1988-12-20 1992-03-24 Larsson Leif T High security lock and latch for sliding doors
US5452927A (en) * 1994-08-01 1995-09-26 Adams Rite Mfg. Co. Door latching and unlatching assembly
US5636880A (en) * 1995-10-11 1997-06-10 Milocon Corporation Electronic lock
US5622065A (en) * 1995-11-06 1997-04-22 Persiano; Anthony M. Locking mechanism
US6745603B1 (en) 2001-02-22 2004-06-08 Barry Shaw Electromagnetic integrative door locking device and method of installation
WO2005118988A1 (en) * 2004-06-01 2005-12-15 Yarra Ridge Pty Ltd Locks
GB2445418A (en) * 2007-01-05 2008-07-09 Adams Rite Europ Ltd Lock assembly
US20110037278A1 (en) * 2007-01-05 2011-02-17 Adams Rite Europe Limited Lock Assembly
GB2445419B (en) * 2007-01-05 2011-07-27 Adams Rite Europe Ltd Lock assembly
GB2445418B (en) * 2007-01-05 2011-12-21 Adams Rite Europ Ltd Lock assembly
GB2445419A (en) * 2007-01-05 2008-07-09 Adams Rite Europe Ltd Lock assembly
US8485569B2 (en) * 2007-01-05 2013-07-16 Adams Rite Europe Limited Lock assembly
US20090113955A1 (en) * 2007-11-06 2009-05-07 Blumcraft Of Pittsburgh Deadbolt device for a door
US7849718B2 (en) * 2007-11-06 2010-12-14 C.R. Laurence Company, Inc. Deadbolt device for a door
US8523247B2 (en) * 2008-11-14 2013-09-03 Joseph Talpe Cylinder lock with pivotally-mounted bolt
US20100123320A1 (en) * 2008-11-14 2010-05-20 Joseph Talpe Cylinder lock with pivotally-mounted bolt
US20120000257A1 (en) * 2010-07-01 2012-01-05 Adams Rite Manufacturing Co. Single and multi-point door lock
US8534099B2 (en) * 2010-07-01 2013-09-17 Adams Rite Manufacturing Co. Single and multi-point door lock
US20140225381A1 (en) * 2011-10-25 2014-08-14 Dirtt Environmental Solutions, Ltd. Cam style locks and systems and methods including the same
US9328542B2 (en) * 2011-10-25 2016-05-03 Dirtt Environmental Solutions, Ltd Cam style locks and systems and methods including the same
US20200332576A1 (en) * 2019-04-18 2020-10-22 Rockwell Security, Inc. Multi-pocket lock set
US11686134B2 (en) * 2019-04-18 2023-06-27 Rockwell Security, Inc. Multi-pocket lock set

Also Published As

Publication number Publication date
SE399095B (sv) 1978-01-30
CA1016975A (en) 1977-09-06
ZA751011B (en) 1976-01-28
FR2262179B1 (sv) 1978-10-06
DE2507547A1 (de) 1975-08-28
FR2262179A1 (sv) 1975-09-19
GB1489314A (en) 1977-10-19
SE7501895L (sv) 1975-10-29

Similar Documents

Publication Publication Date Title
US3899906A (en) Lock mechanism
US4218903A (en) Lock mechanism
US3695068A (en) Narrow stile latch-lock structure
US4643005A (en) Multiple-bolt locking mechanism for sliding doors
US3011817A (en) Narrow stile door lock
US3750433A (en) Mortise lock retract mechanism
US4732418A (en) Knob latch
US2058163A (en) Door lock
GB1579921A (en) Narrow stile panic exit actuator
US3073143A (en) Lock hold-back latch
US4073518A (en) Electrically and manually actuatable door locking structure
US3815390A (en) Lock
US3790196A (en) Dead bolt latch
GB2076879A (en) Lock mechanism
US2544959A (en) Door lock
US3367156A (en) Lock cylinder assembly
US2931203A (en) Combination padlock
US2264239A (en) Door lock
US3279836A (en) Dead latch construction
US4688406A (en) Deadbolt lock mechanism
US3075796A (en) Dual driver torsion spring mechanism
US2668071A (en) Sliding door lock mechanism
US3095724A (en) Door lock
US3103804A (en) Lock construction
US2208003A (en) Compartment door latch