US1487900A - Pin-tumbler lock - Google Patents

Pin-tumbler lock Download PDF

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Publication number
US1487900A
US1487900A US558177A US55817722A US1487900A US 1487900 A US1487900 A US 1487900A US 558177 A US558177 A US 558177A US 55817722 A US55817722 A US 55817722A US 1487900 A US1487900 A US 1487900A
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US
United States
Prior art keywords
plug
stop
turned
collar
washer
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
US558177A
Inventor
Ernest L Teich
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.)
Emhart Industries Inc
Original Assignee
American Hardware Corp
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 American Hardware Corp filed Critical American Hardware Corp
Priority to US558177A priority Critical patent/US1487900A/en
Application granted granted Critical
Publication of US1487900A publication Critical patent/US1487900A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B27/00Cylinder locks and other locks with tumbler pins which are set by pushing the key in
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S70/00Locks
    • Y10S70/62Cylinder plug stop
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00Locks
    • Y10T70/70Operating mechanism
    • Y10T70/7441Key
    • Y10T70/7486Single key
    • Y10T70/7508Tumbler type
    • Y10T70/7559Cylinder type
    • Y10T70/7638Cylinder and plug assembly

Description

March 25 -1924. 1,487,9Q0

- E. L. TEICH P IN TUMBLER LOQK Filed May 5, 1922 Patented Mar. 25, 1924.

l dtl tdii FA @FFEC ERITTEST L. FETCH, OF NEVT BRITAIN, CGNNECTICU'I, ASSIGN'OE-J TO THE AMERICAN HARDWARE COR-PULMK'LIOKL 0'11 NERVBRI'EEIN, CONNECTICUT, A CORPORATION OF CONNECTICUT.

BIN-TUMBLER LG CK.

Hpplication filed: May a type in which the key operated plug is adapted to be turnedone complete revolution in either direction to a fixed angular posis tion; 7

An object of the invention: is to provide novel and improved means in a lock of: this character for preventing thepliug from being tin-nod in either direction beyond said fixed angular positionr Another object of the invention is to provide novel and improved means in a pin tumbler lock for holding the key operated plug from axial! movement.

The several: features ot the invention will be clearly understood from the following description and accompanying drawings, inv which Figures 1 and 2 arerear end and side elevations of one form of my improved lock;

' Fig Sis-a sectional view taken on the line 33 of Fig2;

Fig. 4 is a rear end view of the lock. in its preferred form;

Fig. 5' is a sectional view takenon the line 5 5 of Fig. d; and V Fig. 6 is a detail perspective view of a component part of the stopping devices for the key operated plug of the lock.-

Each of the locks illustrated in the. draw ings is provided with a cylindrical lock case 2, and a key operated plug 4 which is capable of being turned one complete revolution in either direction to a fixed angular position, in Which position the key may be inserted and removed. Each of the locks is also provided with stopping devices for positively preventing the key operated plug from being turned in either direction beyond said fixed angular position. In the construction illustrated in Figs. 1, 2 and 3 the stopping devices comprise a radial slot in the rear end of the lock case forming opposed stop shoulders 6 and 8 that are spaced apart. A collar or washer 10 is loosely mounted on the key operated plug 4 and is held from axial movement thereon by being interposed between the rear end of the lock case and the flange 12 of a collar 14 secured by a pin it on the rear end of the plug which is reduced in diameter so as to form a: shoulder 18 against which the collar is held. The rear end of the lock case is countersunk to receive the washer 10 so that the rear face of the washer is substantially flush with the rear end of the lock case. The washer 10 is provided with a radially ext-ending stop lug 20 that projects between the stop shoulders 6 and 8, the stop shoulders cooperating with the stop lug 20 to define the limits of movement of the washer 10. The end of the stop lug 20 is turned rcarwardly at right angles to form a stop 22 which is adapted to be engaged by a stop lug 24;: projecting radially from the collar flange 12. With this construction it will be apparent that the extent of rotation of the key operated plug in a clockwise direction, viewing Fig; 1, will be limited by the stop shoulder 6 through the stop lugs 20 and 24:, and? that the extent of rotation of the key operated plug in a counter-clockwise direction will be limited by the stop shoulder 8 through the stop lugs 20 and 24:. As shown the spacing of the stop shoulders 6 and 8 and:- the width of the stop lugs 20' and 24: are such that the plug is permitted to be turned one complete revolution in either direction to a fixed angular position and is positively prevented from being turned in either direction beyond said position the key being adapted to be in-- serted and removed when the plug is in this position.

In the construction. illustrated in Figs. 4, 5 and 6 of the drawings the projecting rear end portion of the key operated plug is reduced in diameter to form a shoulder 26 and both a washer 10 and a flangeless collar 14 are mounted on this reduced portion, the washer being loosely mounted and the collar being fixed by a pin 16. The washer is provided with a radially extending lug 20 that extends between the stop shoulders 6 and 8 on the rear end of the casing. The Washer is also provided with a rearwardly projecting stop lug 22 that is struck up from the washer in radial alinement with the stop lug 20'. The stop lug 22' is arranged in the path of movement of a stop lug 24- proin Figs. 4, 5 and 6 is found preferable in some cases.

It will be apparent that in both forms of locks that the collar and *asher on the rear end of the key operated plug cooperate with the usual head 30 on the front end of the plug'to hold the plug from axial movement. As will be evident to those skilled 1n the art my invention permits of various modifications without departing from the spirit thereofv or the scope of the appended claims.

lVhat I claim is:

l. A pin tumbler lock having, in combination, a pin tumbler lock case, means comprising a key operated plug adapted to be turned in opposite directions to a fixed angular position and permitting the removal of the. key when the plug is in said position, 7

and stopping devices comprising fixed stops on said pin tumbler lock case arranged exteriorly of and adjacent to the rear end of the lock case for preventing the plug from being turned in either direction beyond said position.

2. A pin tumbler lock having, in combination, a pin tumbler lock case, means comprising a key operated plug adapted to be turned in opposite directions to a fixed angular position and permitting the removal of the key when the plug is in said position, said lock case and plug having co-operating stops for preventing the plug from being turned in either direction beyond said fixed angular position, and said plug having its inner end projecting beyond the inner end of the lock case. v

3. A pin tumbler lock having, in combina tion, a pin tumbler lock case having spaced stop members on its rear end, a key operated plug adapted to be turned in opposite directions to a fixed angular position and permitting the removal of the key when the plug is in said position, a collar carried by the rear end of the plug having a radially extending stop member, and a washer loosely mounted on the plug between the collar and rear end of the casing and having a, stop member extending between said stop members on the casing and having a stop member arranged to be engaged by the'stop men her on the collar when said plug is turned in either direction to said fixed angular position, said stop members on the casing, washer and collar constructed and arranged to cooperate to prevent the plug from being turned in either direction beyond said fixed angular position.

4. A pin tumbler lock having, in combination, a pin tumbler lock case having a radial slot in its rear end forming spaced stop shoulders, a key operated plug adapted to be turned in opposite directions to a fixed angular position and permitting the removal of the key when the plug is in said position, a collar carried by the rear end of the plug having a radially extending stop member, and a washer loosely mounted on the plug between the collar and the rear end of the casing having a radially extending stop member extending between said stop shoulders and a stop member struck up therefrom and arranged to be engaged by said stop member on the collar when said plug is turned in either direction to said fixed angular osition said sto shoulders on the cas-.

spaced stop members thereon, a stop member movable in opposite directions havin'gcthe limits of its movements defined by the stop the plug from being turned in eitherdirec- 7 tion beyond said fixed angular position.

ERNEST L. anion.

members on the casing, respectively, a key operated plug adapted to be turned in oppo-

US558177A 1922-05-03 1922-05-03 Pin-tumbler lock Expired - Lifetime US1487900A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US558177A US1487900A (en) 1922-05-03 1922-05-03 Pin-tumbler lock

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Application Number Priority Date Filing Date Title
US558177A US1487900A (en) 1922-05-03 1922-05-03 Pin-tumbler lock

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US1487900A true US1487900A (en) 1924-03-25

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2877638A (en) * 1955-06-07 1959-03-17 Independent Lock Co Pin tumbler lock
US2878663A (en) * 1956-07-20 1959-03-24 Eagle Lock And Screw Company Locking device
US4138870A (en) * 1977-07-11 1979-02-13 Emhart Industries, Inc. Lock cylinder plug stop
US4703638A (en) * 1986-08-25 1987-11-03 Bergstrom Roger E Removable core lockset with anti-pick core removal ring
EP0269556A2 (en) * 1986-11-20 1988-06-01 Zeiss Ikon AG Cylinder lock core retaining means
US5477711A (en) * 1993-10-12 1995-12-26 Oliveri; George Opening occluding lock assembly
US5816083A (en) * 1991-10-21 1998-10-06 Bianco; James S. Electronic lock system
WO2002070842A1 (en) 2001-03-07 2002-09-12 Gaston Glock Miniaturised cylinder lock
WO2002070978A1 (en) 2001-03-07 2002-09-12 Gaston Glock Locking device for a pistol
JP2008503664A (en) * 2004-05-27 2008-02-07 ユニパス カンパニー リミテッド Locking device with separate latch bolt and cylinder

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2877638A (en) * 1955-06-07 1959-03-17 Independent Lock Co Pin tumbler lock
US2878663A (en) * 1956-07-20 1959-03-24 Eagle Lock And Screw Company Locking device
US4138870A (en) * 1977-07-11 1979-02-13 Emhart Industries, Inc. Lock cylinder plug stop
US4703638A (en) * 1986-08-25 1987-11-03 Bergstrom Roger E Removable core lockset with anti-pick core removal ring
EP0269556A2 (en) * 1986-11-20 1988-06-01 Zeiss Ikon AG Cylinder lock core retaining means
EP0269556A3 (en) * 1986-11-20 1988-10-19 Zeiss Ikon AG Cylinder lock core retaining means
US5816083A (en) * 1991-10-21 1998-10-06 Bianco; James S. Electronic lock system
US5477711A (en) * 1993-10-12 1995-12-26 Oliveri; George Opening occluding lock assembly
WO2002070842A1 (en) 2001-03-07 2002-09-12 Gaston Glock Miniaturised cylinder lock
WO2002070978A1 (en) 2001-03-07 2002-09-12 Gaston Glock Locking device for a pistol
US20040111945A1 (en) * 2001-03-07 2004-06-17 Gaston Glock Locking device for a pistol
JP2008503664A (en) * 2004-05-27 2008-02-07 ユニパス カンパニー リミテッド Locking device with separate latch bolt and cylinder
US20080078220A1 (en) * 2004-05-27 2008-04-03 Unipass Co., Ltd. Locking Apparatus Having a Latch Bolt Separated from Cylinder

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