US1964936A - Permutation lock - Google Patents

Permutation lock Download PDF

Info

Publication number
US1964936A
US1964936A US619261A US61926132A US1964936A US 1964936 A US1964936 A US 1964936A US 619261 A US619261 A US 619261A US 61926132 A US61926132 A US 61926132A US 1964936 A US1964936 A US 1964936A
Authority
US
United States
Prior art keywords
position
shackle
locking
lock
element
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
US619261A
Inventor
Anthony J Denerich
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.)
SESAMEE Co
Original Assignee
SESAMEE 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 SESAMEE Co filed Critical SESAMEE Co
Priority to US619261A priority Critical patent/US1964936A/en
Application granted granted Critical
Publication of US1964936A publication Critical patent/US1964936A/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B37/00Permutation or combination locks; Puzzle locks
    • E05B37/02Permutation or combination locks; Puzzle locks with tumbler discs or rings arranged on a single axis, each disc being adjustable independently of the others
    • E05B37/025Permutation or combination locks; Puzzle locks with tumbler discs or rings arranged on a single axis, each disc being adjustable independently of the others in padlocks
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B37/00Permutation or combination locks; Puzzle locks
    • E05B37/0048Permutation or combination locks; Puzzle locks with changeable combination
    • E05B37/0058Permutation or combination locks; Puzzle locks with changeable combination by axial disengagement between hub and rim of tumbler discs or rings
    • 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
    • Y10T70/40Portable
    • Y10T70/413Padlocks
    • Y10T70/417Combination-controlled
    • Y10T70/422Rigid shackle
    • Y10T70/424Sliding
    • 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
    • Y10T70/7153Combination
    • Y10T70/7181Tumbler type
    • Y10T70/7198Single tumbler set
    • Y10T70/7237Rotary or swinging tumblers
    • Y10T70/726Individually set
    • Y10T70/7305Manually operable

Description

A. J. DENERICH PERMUTATION LOCK my 39 M934.

Filed June 25, 1932 2 sheets-sheet 1 Ju11y3,w34. AJDENEWCH 1,964,936

PERMUTATION LOCK Filed June 25, 1952 2 Sheets-Sheet 2 Ani/Honey J enerz'oh- Patented July 3, 1934 UNITED STATES PERMUTATION LOCK Anthony J. Denerich, Hartford, Conn., assignor to The Sesamee Company, Hartford, Conn., a. corporation of Connecticut Application June 25, 1932, Serial No. 619,261

18 Claims.

This invention relates generally to keyless locks, and has particular reference to permutation locks cf the type provided with a plurality of settable wheels or tumblers bearing suitable indicia and with which are associated lock controlling elements. As an instance of a use to which the improvements of the present invention may be applied, reference may be had to padlocks, as my improvements are peculiarly applicable thereto, but it is to be understood that the disclosure of this application of my improvements is by way of illustration only, certain of the improvements being of general application to locks of the type mentioned irrespective of their intended use.

An aim of the present invention is to provide an improved lock of this sort which cannot be surreptitiously opened by unauthorized persons not knowing the selected or prevailing combinal tion by tapping, pounding, or otherwise jarring the lock in such a way as to disengage the locking bolt or element from the shackle, catch, or other securing element.

A further aim of the invention is to provide an improved arrangement of locking mechanism wherein the shackle, catch, or other securing element may be released from the locking bolt after the tumblers have been set to the selected or prevailing combination by manipulating the shackle itself, as by pressing it inwardly towards the casing and without the necessity of manipulating or operating separate releasing means or manipulative elements, such as a knob or the like.

One objection to padlccks of the permutation type has been that the shackle, after it has been opened, could be moved back to its normally locked position and retained in that position without actually locking the same there and while the prevailing or selected combination is on. Not infrequently, the user of such padlocks will move the shackle home and forget to disturb or break the prevailing combination with the liability that some unauthorized person will come along and either open the lock or make note of the prevailing combination for future unauthorized use.

An aim of the present invention is to overcome this objection and, to that end, the arrangement is such that the shackle, after it has been released, cannot again be held in its locked position unless the prevailing combination is disturbed; that is to say, the shackle, after it has been released, is automatically returned to its open position in the event it is moved tolocked position so long as the prevailing combination has been disturbed, thus giving a signal to the user that he has not disturbed the combination.

A further object is to provide a padlock with improved means of a simple nature for preventing the shackle from being locked when the same is not in locking position.

Another aim of the invention is to provide an improved permutation lock of the character described which is characterized by its simplicity in construction, by its economy in manufacture, by its strength and ruggedness, by the security with which the securing element is held in locked position, and by the ease and facility with which itmay be manipulated.

Other objects will be in part obvious and, in part, pointed out more in detail hereinafter.

The invention accordingly consists in the features of construction, combination of elements and arrangement of parts which will be exemplified in the construction hereinafter set forth and the scope of the application of which will be indicated in the appended claims.

In the accompanying drawings, wherein is shown, for illustrative purposes, one of the many embodiments which the present invention may take,

Figure l is a side view of the lock in section, this view being taken substantially on line 1--1 of Fig. 3;

Fig. 2 is a view similar to Fig. 1 but taken on a vertical plane through the center of the lock, this view being taken substantially on line 2-2 of Fig. 3;

Fig. 3 is a sectional View through the lock taken at right angles to the planes on which Figs. 1 and 2 are taken, this view being taken substantially on line 3 3 of Fig. l;

Fig. 4 is a view similar to Fig. 3 but showing the locking bolt in unlocked position;

Fig. 5 is a perspective view of the locking bolt;

Fig. 6 is a bottom plan View of the lock;

Figs. 7 to 11, inclusive, are diagrammatic views showing the various positions of the parts during the operation of moving the shackle from ineffective position to eective or locked position; and

Fig. 12 is a detail view on line 12--12 of Fig. 1.

Referring to the drawings in detail, 10 designates generally a casing of any suitable kind within which is positioned a frame or chassis having a pair of side members or plates 11, a cross portion 12 connecting the upper and rear edges of the side members, and a face plate 13 closing the lower open end of the casing and provided with openings for accommodating the tumblers. The casing and the chassis or frame form a supporting structure for the operative parts of the locking mechanism. The chassis may be secured in place within the casing by a screw 14.

In the present illustrated disclosure, the securing element is shown as being in the form of a shackle 15 having a long leg 16 passing through an opening 17 in the casing. 'I'his leg has, at its inner end, a headed stem 18 which terminates in a pointed teat or pivot 18'. The stem 18 passes through and is slidably received by a notch 19 in an ear or lug 20 formed integrally with the casing. The stem has a laterally extending lug or fm 19 adapted to engage in or register with the notch 19 only when the shackle is in a position where its short end registers with the opening 23. Between the lug 20 and the lower end of the leg 16, and positioned about the stem 18, is a coiled spring 21 which normally tends to urge the shackle outwardly into ejected or ineffective position. The short leg 22 of the shackle is adapted to be received by an opening 23 in the top wall of the casing, and the lower end of this leg has its edge chamfered or rounded, as at 24. Each leg has a notch or recess 25 defined by an upper wall or shoulder 26 and a lower wall or shoulder 27. Within the casing and in line with the opening 23 is a projection 28, the upper end 29 of-which constitutes a shoulder or stop which limits movement of the shackle inwardly of the casing.

The permutation members or wheels, designated generally by the numeral 35, are suitably supported upon a shaft 36 which, in turn, is supported by the side members of the chassis or frame. Each permutation wheel has associated with it a concealed lock-controlling element, here shown as being in the form of a disk 37, cut away at one side so as to provide a notch 33. The peripheries of the permutation wheels are provided with suitable indicia, in the present case this indicia being in the form of equally spaced markings running from zero to nine. Portions of the peripheries of these wheels extend through the openings in the face plate 13 so that they are accessible for manipulation from the exterior of the casing. For the purpose of retaining the permutation wheels in the various positions in which they may be set, the wheels are provided in their peripheries with spaced notches 39 with which cooperate the ends of spring fingers 40. These spring fingers may be provided on an integral spring plate secured in place by a screw 41. The permutation wheels are so supported that the combination may be readily changed, a combination change mechanism being shown in the accompanying drawings which is similar to that disclosed in the reissue patent to A. G. Hatch, No. 16,833, dated December 27, 1927. The shaft 36 is mounted for sliding movement and carries a finger piece 100 extending through an opening 101 in the face plate 13. A spring 102 normally urges the shaft to the position shown in Figs. 1 and 2. Each lock controlling element has associated with it a hub 103, and each hub has splines or ribs 104 in its outer periphery. Each permutation wheel has a central opening provided with grooves adapted to receive the ribs 104 on a respective hub. To change the combination, it is merely necessary to push the shaft to the left to thereby disengage the hubs from the wheels, then turn the Wheels to the desired combination, and finally release the shaft, whereupon it will assume the position shown in Figs. 1 and 2. In the present arrangement, the shackle is so constructed that when it is in its effective position it prevents operation of the combination change mechanism. To this end, in the present illustrated disclosure, a long arm of the shackle has a head 105 which lies behind the left-hand end of the change combination shaft when the shackle is in effective position. Thus, movement of the shaft, together with the hubs carried thereby, towards the left, is prevented as long as the shackle is in effective position.

Reference will now be had to the locking bolt or element the structure of which is most clearly shown in Fig. 5. This plate has a body portion provided at its upper end with a ange 51 the free corners of which are curved, as at 52, and which corners constitute dogs adapted to engage in the recesses or notches 25 in the arms of the shackle when the shackle is in locked position. At opposite sides of the plate 50 and spaced below the ange 51 are outwardly extending ears or lugs 53 of generally rectangular shape. Depending from the lower edge of the body portion 50 of the plate are a plurality of ngers or tangs 54, two being shown in the present instance, it being understood, however, that the number thereof will depend upon the number of permutation wheels and the arrangement of those wheels. In the present instance, there are but two of these fingers or tangs because two of the lock controlling elements 37 are positioned in abutting relation. Each of these fingers or tangs carries a lug 55 on its rear face. The right-hand lug (which is the left-hand lug in Fig, 5) is adapted to cooperate with the left-hand locking element as viewed from Figs. 1 and 2, and the lefthand lug (which is the right-hand lug as viewed from Fig, 5) is adapted to cooperate with the two abutting lock controlling elements 37.

Referring now to the manner in which this locking plate or bolt is mounted, it will be seen, that each of the side members of the chassis is provided, at its forward edge, with an upwardly facing shoulder and a hook shaped projection 6l disposed in spaced relation above said shoulder. This projection has at its outer end a depending tongue or guard 62 behind which is a notch 63 open at its lower end. The edge of the side member and between the shoulder and the notch and adjacent the shoulder has a forwardly directed hump or cam portion 64 which forms a fulcrum for the locking bolt of the plate. The relation of the parts is such that when the locking bolt is assembled on the chassis the ears 53 are disposed above the respective shoulders 60 and, when the lower edges of these ears rest on those shoulders, the upper edges of the ears will clear the tongues 62. The rear faces of the ears are adapted to engage the fulcrums 64 and, when the locking plate is in raised position, the upper edges of the ears are received by the respective notches 63 so that they are disposed behind the guards or tongues 62.

For the purposes of holding the locking plate so that the ears thereof are in engagement with the fulcrum 64 and also for moving the plate downwardly (after the tumblers have been set to the prevailing combination and the shackle is pushed in as hereinafter described more in detail) there is provided a spring 65. In the present instance, this spring is coiled about a cross pin 66 suitably supported by the chassis above the tumblers. One end of this spring terminates in an arm 6'7 which bears against the front face of the cross portion 12 of the chassis and the other end of the spring terminates in an arm 68 which prou jects forwardly and downwardly through an opening 69 in the locking plate, said opening being disposed substantially in the line on which the locking plate is fulcrumed. The extreme end of the arm 68 is bent downwardly, as at '70, so as to prevent disengagement of the locking plate from the spring.

To secure the shackle in locked or effective position, the following operation takes place, particular reference being had to the diagrammatic liO showing of Figs. 7 to 11. Assuming that the permutation members are set to the prevailing combination, as shown in Fig. 7, (and also Fig. 4) and the bolt and shackle are in ineffective or released positions, one or more of the indicia wheels is turned, whereupon the lock controlling element associated with that wheel will cam the locking plate from the position shown in Fig. 7 to that shown in Fig. 8 and in which latter position one of the dogs 52 is beneath and in line with the opening 23 which receives the short arm of the shackle. When the locking plate is thus swung to the position shown in Fig. 8, it may move up slightly so that the upper ends of the lugs 53 are behind the tongues 62. The shackle is now pushed towards its effective position, whereupon the lower end of the short arm of the shackle will cam the locking plate from the position shown in Fig. 8 to the position shown in Fig. 9 and in which latter position the lugs 53 are free of the notches 63 and these lugs are disposed beneath the tongues 62. As the shackle is pushed further in and past its normal effective position, the notches 25 of the shackle arms are brought to a position where they are level with the dogs 52, whereupon the spring 65 will pull the upper end of the locking plate rearwardly, thereby engaging the dogs in the notches 25, as shown in Fig. 10. During such movement, the locking plate will swing or fulcrum, of course, about the line at which the lugs engage the peripheries of the disks 37. Inward pressure on the shackle is now released, whereupon the spring 21 behind the shackle will urge the shackle outwardly to the position shown in Figs. 1, 3, and 11. When the shackle thus moves out, the locking plate is moved therewith from the position shown in Fig. 10 to that shown in Fig. 11.

It will be observed, of course, that the shackle may be locked by first pushing the shackle to the position shown in Fig. l0 and then breaking the prevailing combination by turning one or more of the disks from the position shown in Fig. 7 to that shown in Fig. 10.

'Io unlock the mechanism, the indicia wheels are turned to the prevailing combination so that the notches 38 of the disks are in a position to receive the lugs 55 of the locking plate, as` shown in Fig. 4. Then the shackle may be pressed inwardly from its normal effective position shown in Fig. 3 to the position shown in Fig. 4, whereupon the shoulders 27 forming the lower limits of the recesses 25 in the shackle are removed from the dogs sothat the spring is now free to bodily and endwise move the locking plate in a downward direction and then swing that plate about the fulcrum 64 as a pivot after the plate has been moved downwardly7 to such an extent that the ears 53 are clear of the tongues 62. As shown in Fig. 4, the lugs 55 now engage in the notches 38 of the lock controlling disks and the dogs are removed from the line of movement of the shackle. Upon release of pressure upon the shackle, the spring 21 will force the shackle to its ineffective position and in which position the short arm of the shackle is clear of the casing. Obviously, of course, to unlock the device, the shackle may be first pushed in to the position shown in Fig. 4 and then the indicia wheels set to the prevailing or selected combination.

It will be observed that, after the shackle has been released to ineifective position, it cannot again be secured in effective position unless the prevailing combination has been disturbed. This is so, as will be seen from Fig. 4, because the dogs are not in a position to engage the shackle when it is pushed in. Therefore, the spring 21 is free to urge the shackle back to ineffective position, and the open condition of the shackle serves as a signal to the user that the device is not properly locked. He will not, therefore, leave the device under the impression that it is locked and with the prevailing combination showing.

It will further be seen that to move the shackle from effective or locked position to ineffective or released position, after the prevailing combination has been set up on the indicia wheels, it is merely necessary to push the shackle in to a slightly greater extent, that is, from the position shown in Fig. l to that shown in Fig. 4, and then release pressure on the shackle, whereupon the spring 21 will move the shackle to ineffective position.

It will further be seen that, when the parts are in the locking position shown in Figs. 1 and 3, the padlock cannot be surreptitiously opened by unauthorized persons not knowing the combination by tapping or otherwise jarring the lock. When the device is in locked condition, the dogs overhang the shoulders 27 and the lugs 53 engage the upper edges of the notches 63 so that the shackle cannot be withdrawn. The old method of opening locks by exerting a steady pulling force on the shackle while subjecting the lock to a series of taps in order to withdraw a spring pressed bolt in a series of short steps cannot Ybe successfully used with my improved arrangement because the lugs 53 of the locking plate are disn posed behind the fixed tongues or guards 62,

thus eliminating any possibility of the locking 111i plate being swung out of locking engagement with the shackle.

It will further be seen that, due to the arrangement of the iin 19 and the lug 20, the shackle cannot be locked in a position where its short "v arm is to one side of the casing and not in the opening 23 of the casing. When the short arm of the shackle registers with the opening 23, the iin registers with the notch in the lug and, at

such time, the shackle can be pushed in to locked position. However, when the shackle is in inef` fective position and is in an angular position where the short arm thereof does not register with the opening 23, the fin is above the lug 20 and,

therefore, the shackle can be pushed home.

As many changes could be made in the above construction and many apparently widely dinerent embodiments of this invention could be made without departing from the scope thereof, it is intended that all matter contained in the above i ments and adapted when the prevailing combination is disturbed to lock said securing element in effective position, guard means for positively holding said locking element in locking relation with said securing element while the prevailing combination is disturbed, and spring j means for urging said locking element into locking position when the prevailing combination is disturbed.

2. In a permutation lock, permutation members each provided with a lock controlling elej ment, a securing element having an eiective position and an ineffective position, a locking element controlled by said lock controlling elements and adapted when the prevailing combination is disturbed to lock said securing element in effective position, a ixed guard adapted to cooperate with said locking element when the latter is in locking position to positively hold the same in locked relation to said securing element; said locking element being free of said guard when the prevailing combination is set up on said permutation members and said securing device is released, and spring means for urging said locking element into locking position when the prevailing combination is disturbed.

3. In a permutation lock, permutation members each provided with a lock controlling element, a securing element having an effective position an ineffective position, a locking element controlled by said lock controlling elcments and adapted when the prevailing combination is disturbed to lock. said securing element in eiiective position, and guard means With which said locking element is interlocked when said locking element is in locking engagement with said securing element, said locking element being moved into interlocking relation with said guard means by said securing element.

4. In a permutation lock, permutation members each provided with a lock controlling element, a securing element having an effective position and an ineffective position, a spring urging said securing element towards its ineffective position, a locking element controlled by said lock controlling elements and adapted when the prevailing combination is disturbed to lock said securing element in effective position, and guard means with which said locking element is interlocked when said locking element is in locking engagement With said securing element, said locking element being moved into interlocking relation with said guard means by said securing element.

5. In a permutation lock, permutation members each provided with a lock controlling element, a securing element having an eiective position and an ineffective position, a locking element controlled by said lock controlling elements and adapted When the prevailing combination is disturbed to lock said securing element in eiective position, guard means with which said locking element is interlocked when said locking element is in locking engagement with said securing element, said locking element being moved into interlocking relation with said guard means by said securing element, and means for urging said locking element out of disengagement with said guard means when the lock controlling elements are set to the prevailing combination.

6. In a permutation lock, permutation members each provided with a lock controlling element, a securing element movfble from an ineiective position to an effective position and to a third position slightly past the effective position, a locking element controlled by said lock controlling elements and adapted to lock said securing element against movement from the eiective position to the ineffective position, and iixed guard means with which said locking element is interlocked when the lock is in locked condition, said locking element being moved into interlocking relation with said guard means by said securing element when the latter is moved from said third position to its effective position.

7. In a permutation lock, permutation members each provided with a lock controlling Aelement, a securing element movable from an ineffective position to an effective position and to a third position slightly past the effective position, a locking element controlled by said lock controlling elements and adapted to lock said securing element against movement from effective to ineffective position, a xed guard with which said lock is interlocked when the mechanism isin locked condition, said locking element being moved into interlocking relation with said guard by said securing element when the latter is moved from said third position to its effective position, and a spring associated with said locking element, said spring and controlling elements While the prevailing combination is disturbed being arranged to hold said locking element in engaged relation with said guard means when the securing element is moved to said third position.

8. In a permutation lock, permutation members each provided With a lock controlling element, a securing element movable from an inefi'ective position to an effective position and to a third position slightly past the effective position, a locking element controlled by said lock controlling elements and adapted to lock said securing element against movement from eiective to ineffective position, and a fixed guard with which said locking bolt is interlocked when the mechanism is in locked condition, said locking element being moved into interlocking relation with said guard by said securing element when the latter is moved from said third position to its effective position, a spring associated With said locking bolt, said spring and controlling elements while the prevailing combination is disturbed being arranged to hold said locking element in engaged relation vvitn said guard means in the event the securing member is moved to said third position, and means normally urging said securing element from effective to ineffective position.

9. In a permutation lock, a plurality of permutation members each provided with a lock controlling element, a securing element movable from effective to ineffective position, a locking element controlled by said lock controlling elements and adapted to engage said securing element to lock the latter in eiective position when the prevailing combination is disturbed, means for mounting said locking element for swinging movement and for bodily movement into and out of longitudinal relation to said securing element. v

10. In a permutation lock, a plurality of permutation members each provided with a lock controlling element, a securing element movable from an eiective to an ineffective position, a locking element controlled by said lock controlling elements and having a lateral movement With respect to said securing element and a movement generally parallel to the direction of movement of said securing element, said lock controlling elements being arranged to move said locking element laterally when the prevailing combination is disturbed, and a guard behind which said locking element is adapted to engage when the mechanism is in locked condition, said securing element when in eiective position being arranged to hold said locking element in engaged relation with said guard.

11. In a permutation lock, permutation elements each provided with a lock controlling ele- ISO i,964,cse

ment, a securing element movable from an ineiiective position to an effective position and past the eiective position, a locking element controlled by said lock controlling elements and adapted to engage said securing element to hold the latter against movement from effective to ineffective position, and a guard, said locking element being movable laterally into and out of locking relation to said securing element, and also being movable generally in the direction of movement of said securing element into and out of engagement with said guard, said securing element being arranged to cam said locking element laterally when the securing element is moved from ineffective to effective position, said locking element being engaged with said guard by the movement of said securing element from a position past its ineiiective position to its effective position.

l2. In a permutation lock, permutation members each having a lock controlling element, a rectilinear-ly movable securing element provided with a shoulder, a iulcrum between said lock controlling elements and securing element, a locking element iulcrlLned thereon and having a dog adapted to cooperate with said shoulder and having portions adapted to engage said lock controlling elements, a spring normally urging said locking element against said ulcrum and into engagement with said lock controlling elements, and a guard behind which said locking element is adapted to engage when the parts are in locked condition.

i3. In a permutation padlock, a casing having a notched lug on its interior and an opening, a shackle having a long arm passing through said lug and secured against withdrawal from the casing, said shackle having a short arm movable into and out of the casing through said opening, a spring normally urging said shackle to ineffective position, permutation members within the casing and each having a lock controlling element, locking means between said shackle and lock controlling elements, and a nn on the long arm of said shackle adapted to register with or engage in the notch of said lug When the short arm of the shackle registers with said opening, said iin being adapted to engage said lug to prevent the shackle from being pushed inwardly of the casing when the shackle is in any angular position other than where the short arm of the shackle registers with said openingt i4. In a permutation padlock, a supporting structure, a shackle having an arm movable into and out of an opening in the supporting structure and provided with an outwardly facing shoulder, said supporting structure having a pair of transversely spaced apart fulcrums and a notch above each fulcrum, permutation elements each having lock controlling elements disposed inwardly of said fulcrum, a locking element having ears adapted to engage against said ulcrums and having a dog adapted to engage said shoulder, said locking element having fingers adapted to engage the peripheries of said lock controlling elements, a spring normally urging said locking element against said fulcrums, and a spring normally urging said shackle to ineiective position, said ears being free of said notches when the padlock is in unlocked condition and said ears being engaged in said notches when the lock is in locked condition.

15. In a permutation lock, permutation members each having a lock controlling element, a securing element provided with a shoulder and movable from ineffective to eective position and past elective position, a locking element mounted for pivotal movement and for bodily movement, said locking element having a dog adapted to engage said shoulder, a spring normally urging said locking element into engagement with said securing element, and a guard for preventing pivotal movement of the locking element when said dog is engaged with said shoulder, said securing element being movable past effective position so as to disengage said locking element from said guard.

16. In a permutation lock, a plurality of permutation members each provided with a lock controlling element, a securing element movable from eiective to inelective position, a locking element controlled by said lock controlling elements and adapted to engage said securing element to lock the latter in eflective position when the prevailing combination is disturbed, guard means for positively holding said locking element in locking relation with the securing element while the prevailing combination is disturbed and said securing element is in effective position, and means for mounting said locking element for swinging movement into and out of locking relation with said securing element and for bodily movement into and out of interlocking relation with said guard.

17. ln a permutation padlock, a casing, a shackle having a long arm secured against withdrawal from the casing and a short arm movable into and out or the casing, permutation members within the casing and each having a lock controll-inior element, a locking eier-lent cooperating with said lock controlling elements and engageable with one of said arms of said shackle when the latter is in effective position, a guard for positively holding said locking element in locking relation with the shackle when the prevailing combination is disturbed, means for urging said locking element into locking position, and interengaging means between said shackle and locking element for camming said locking element from locking position when the shackle is moved from ineiective to eiective position.

18. In a permutation padlock, a plurality of independently operable permutation members each provided with a lock controlling element, a shackle having an effective position and an ineiective position, a locking element controlled by said lock controlling elements and adapted, when the prevailing combination is disturbed, to lock said shackle in eiiective position, guard means for positively holding said locking element in locking relation to said shackle when the shackle is in effective position and while the prevailing combi- -i nation is disturbed, means for supporting said locking element for movement into and out of interlocking relation with said guard means, and a spring for urging said locking element into engagement with said shackle when the prevailing combination is disturbed, said shackle being constructed and arranged to move said locking element from locking position when the shackle is moved from ineiective position to eiiective position while the prevailing combination is disturbed.

ANTHONY J. DENERICH.

lli()

US619261A 1932-06-25 1932-06-25 Permutation lock Expired - Lifetime US1964936A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US619261A US1964936A (en) 1932-06-25 1932-06-25 Permutation lock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US619261A US1964936A (en) 1932-06-25 1932-06-25 Permutation lock

Publications (1)

Publication Number Publication Date
US1964936A true US1964936A (en) 1934-07-03

Family

ID=24481157

Family Applications (1)

Application Number Title Priority Date Filing Date
US619261A Expired - Lifetime US1964936A (en) 1932-06-25 1932-06-25 Permutation lock

Country Status (1)

Country Link
US (1) US1964936A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2502614A1 (en) * 1975-01-23 1976-07-29 Franzen Soehne S Number combination locking padlock - has sector type control device moved by means of striker attached to jacket surface of lock controller
US3983724A (en) * 1975-07-21 1976-10-05 Master Lock Company Changeable combination padlock
US4048821A (en) * 1976-01-30 1977-09-20 Presto Lock Company, Division Of Walter Kidde & Company, Inc. Combination padlock
US4308731A (en) * 1979-04-26 1982-01-05 Presto Lock Company, Division Of Walter Kidde & Company, Inc. Combination locks
US4420953A (en) * 1979-04-26 1983-12-20 Presto Lock, Inc. Combination locks
US5063761A (en) * 1991-06-03 1991-11-12 Ling Chong Kuan Simply-constructed combination padlock
US5517836A (en) * 1995-05-12 1996-05-21 Hong; Chih-Cheng Fastening device provided with a combination lock
US5746075A (en) * 1996-10-04 1998-05-05 Yang; Yaw-Kuen Combination padlock
US6012309A (en) * 1999-02-17 2000-01-11 Liu; Tien-Kao Pad lock with reliable change of code number
US7536883B1 (en) * 2008-05-06 2009-05-26 Federal Lock Co., Ltd. Vandal-resistant combination padlock
US9167268B1 (en) 2012-08-09 2015-10-20 Google Inc. Second-order orthogonal spatial intra prediction

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2502614A1 (en) * 1975-01-23 1976-07-29 Franzen Soehne S Number combination locking padlock - has sector type control device moved by means of striker attached to jacket surface of lock controller
US3983724A (en) * 1975-07-21 1976-10-05 Master Lock Company Changeable combination padlock
US4048821A (en) * 1976-01-30 1977-09-20 Presto Lock Company, Division Of Walter Kidde & Company, Inc. Combination padlock
US4308731A (en) * 1979-04-26 1982-01-05 Presto Lock Company, Division Of Walter Kidde & Company, Inc. Combination locks
US4420953A (en) * 1979-04-26 1983-12-20 Presto Lock, Inc. Combination locks
US5063761A (en) * 1991-06-03 1991-11-12 Ling Chong Kuan Simply-constructed combination padlock
US5517836A (en) * 1995-05-12 1996-05-21 Hong; Chih-Cheng Fastening device provided with a combination lock
US5746075A (en) * 1996-10-04 1998-05-05 Yang; Yaw-Kuen Combination padlock
US6012309A (en) * 1999-02-17 2000-01-11 Liu; Tien-Kao Pad lock with reliable change of code number
US7536883B1 (en) * 2008-05-06 2009-05-26 Federal Lock Co., Ltd. Vandal-resistant combination padlock
US9167268B1 (en) 2012-08-09 2015-10-20 Google Inc. Second-order orthogonal spatial intra prediction

Similar Documents

Publication Publication Date Title
US3438227A (en) Pop handle lock
US3697105A (en) Latch for vehicle doors
US3416338A (en) Latching device and combination locking means
US4006471A (en) Emergency exit lock system for doors
US5237842A (en) Key and combination lock for luggage
US3907348A (en) Security lock
US1879168A (en) Safety snap hook
US4583382A (en) Reversible latch assembly with integrated function
US5878606A (en) Door lock for swinging door
US4462231A (en) Padlock
US4885923A (en) Combination lock
US3204438A (en) Parking meter mechanism
US2759349A (en) Handcuffs
US3433185A (en) Security box
US20130036778A1 (en) Dual locking system for integrated zipper lock
US2705884A (en) Vehicle door latch
US3956911A (en) Lock for runners, particularly runners of sliding glass doors, on display-window cases
US3672714A (en) Mortise lock with multiple functions
EP0542694B1 (en) A security lock with two locking mechanisms, of the pump type and of the double-bit type, respectively
US4365490A (en) Locking device for use on suitcases
US3964280A (en) Locking mechanism
US2163852A (en) Lock construction
US2293363A (en) Lock structure
US1964066A (en) Latch
US3472049A (en) Combination shackle lock