US1530861A - Permutation lock - Google Patents

Description

March 24, 1925. 1,530,861 H. S. STANDEN PERMUTATION LocK Filed March 20, 1925 Patented Marr24, 1925. y 'y N `Ulsurrzn STATES N ,l 1,530,861 PATENT. i oFFlcE.

`HENRY sNoWDoN s'rANDEN, or WAVERLEY, NEAR. SYDNEY, New] SOUTH warns,

` AUSTRALIA.

` PERMUTATION LOCK.

To all 'whom it may cof/wem.' y

Be it known that HENRY SNowDoN S'rAn- DEN, a subjectof the King of lGrreat Britain and Ireland, residing at Rocklands, Gross Street, Waverley, near Sydney, New South ValeS, Commonwealth of Australia, has invented certain new and useful Permutation Locks, of which the following is aspecification. y

This invention relates to a `permutation lock for doors and the like or for other arti cles or structures which areto be locked to prevent'access thereto or in connection therewith unless the lock has been previously set to permit a key to be turned therein to move a latch or bolt from engagement with a locking plate or staple or other restraining means. Y

The invention has reference particularly to that type of lock which is provided with a series of buttons, two or more of which may be made to form a combination, toenable a key to be turned when the correct buttons of a required combination have been set in proper position. i

Referring to the accompanying drawing, Fig. 1 isa perspective view of the lock, Fig. 9. afront elevation partly in section, Fig. 3 aI sectional elevation, Fig. 4 a rear elevation;

and Fig. 5 a sectional elevation with the keyk turnedinthe lock and the front plate there of partlyremoved from the casing.`

A casingB of metal is preferably provided adapted to be secured to the front of a door or `the like by meansof the bolts 1 and nuts 2. The heads of the bolts l1 lie in depressions in the casing 8, the latteralso carrying the plate l to which mayy bedetachably secured by means of the removable screws 5 the front plate 7; The plate 4 maybe affixed to the casing 3 by nibs- 8 closed over openings in the rim flange 9 ofthe casing 3. In the .plate 4t is an opening to receive a rotatable barrel 6, and `in the rear wall' of the casing 3 is an opening to receive a slidable rotatable barrel 10. Flanges 12 may be'formed on the plate 1 to serve as bearings for the barrel 6.

Circular holes are provided inthe plates 4- and 7 to enable the key 11 to be turned therein. f

Slidably attached to the key 11 withinthe casing 3 are the push plate 13, `the stop plate 14, the latter having a series of notches 15 in its periphery; and externally of the` front niet@ 7 .Qi the ,casing 3 iste@ awe' Plat@ 16 f the key 11 maybe turned.

which is attached to the key 11 to be rotated therewith. Thebarrel G is also attached to ythe key 11 and is rotatable therewith and is slidable longitudinally thereon when the key Vis ,moved longitudinally. In the rear wall the casing 3-are a lseries of rectangular holes to receive the reduced stems 17 of the buttons 18 also a central opening in which Each of these lbuttons is furnished with two slots L or grooves ened central portion of the buttons, and portion of the stems 17 of thesaid buttons is formed rectangular whilst their extreme rear end is circular. Holes arey also furnished in the `plates 4f and 7 for the buttons 18 g. the forward portion of each of the latter y disposedin the preferably, thick-il rectangular portions of their stems 17 lie in the rectangular holes in the rear wall of the casing 3 when the buttons 18 are in either normal or aligned position (Fig. 1) with their forward ends projecting an approximately equal distance beyond the front plate 7, or when theyl are depressed.

Secured to the side walls of are a series of leaf springs 19, one for each of the buttons 18; these springs bear against the sides ofthe buttons 18 and serve toA keep them in proper position within the casing. When the front plate` 7 is securely fastened'to the `plate 4 by means of the yscrews 5 it isynot; possible to turn the n buttons 18 as the rectangular portion of their stems 17 are then within the rectangular holes inthe rear wall of the casing 3., lf, however, the front plate 7 is partly removed from'the casing 3 (see Fig. 5), by loosening the screws 5, the circular portion lof the extreme rear end of the stems 17 may `be made to lie'in the said holes in the rear wall o-f the casing 3, and the buttons 18 may i then be turned-as desired. i

Located between theplates 13 and 14 on the key 11 is the coil spring'QO which serves to distance said plates from each other, as

y I Ve0 thecasing well as to return `such plates and` the key 11 y to normal position after the said spring has been contracted by pulling on thesaidkey and such vpulling force has been relaxed. The push plate 13 is slidably disposed onthe rear portion of the key 11 yWhereas the stop plate 14 is slidably disposed on theforward 4,portion of` saidkey. When any oneor more lf'the but-tens .1.8 have heen, depressed they 7l whereby `the push plate 13 is moved forwardly of the casing 3 and in such movement engages the depressed buttons 18 and moves them to normal position. In such movement L serve to secure the plate r of the key 11 the latter slides in the barrel 6,

and such barrel bears on the flanges 12 whenvv the key 11 is rotated, and itv rotates therewith.` The cover plate 16 attached tothe key 11 is turned when said key is turned, but when said plate is in normal position (Figs. 2 and it coversthe screws 5 which to the plate 4 Qand such screws cannot y.be removed from either fthe vplate 'T or the plate 4 untilthe key 11 has been turned (Fig. 5), whereby the screws 5 are uncovered by the turning of the plate 16 with the key 11.

` The object of providing the buttons'18 with slots or grooves is to enable the said slots or grooves of any two or more said buttons forming a combination of any particular selection to lbe brought into register (by depressing the buttons 18 forming the combination) with the notched periphery of the stop plate 14 whereby the key 11 carrying said plate Vmay then be turned ther with. In case, h-owevergthe sto-p plate 14 lis notin register with the slots or grooves in the correct buttons 18 of the combination the key 11 or the stop plate 14 cannot be turned as the solid portions of' such buttons would engage the notches 15 of the stop plate 14 and rotation of the latter and the key 11 is prevented. Pivotally attached to the key 11 is the tongueor spindle 21 which projects from the key 11 and extends into the casing of the lock carrying the securing bolt or other catch which is to be operated to free it from engagement with a. staple or locking plate or other restrainingymeans y when the key 11 is turned.

In operation, assuming that the permutation lock is fitted with tenV buttons 18 (Fig. 1), and that the buttons marked b, c and e are to form the desired combination, the said buttons must first be depressed to bring' the slots or grooves therein into register with the notched periphery of the stop plate 14 before the key 11 can be turned to operate the tongue 21 to release the boltjor latch from the locking means .therefor onthe door or other structure. Should anv of the other buttons 18 (Fig. 1) be depressed the slots or grooves therein would not be brought into register with the notched periphery vof the fstop `plate 1 4, consequently such plate could not be rotated andlit would not be vpossible to turn the key 11.

Alteration" of any previously selected buttons 18 forming a particular combination maybe effectedto Jformany other desired combination by turn'ingthe key 11 (Fig. 5)

'to register with the notched periphery of the plate 14, when the said selected buttons have been depressed. Turning of the buttons is effected by moving them outwardly from the casing 3 so that the circular portion of' their extreme rear end may lie in the `rectangular openings in the rear of said casing'. y

A A turning-knob provided with ya project, ing stem, vserving the purpose of the stem 'of the key 11, may besubstituted for the latter.` `In the drawings the tongue 21 is shown attached to the key 11 through a slot y22 in the rear portion of the key; such key 4cannot be removed jfrom the casing 3 whilst said tongue is attached thereto, but if the tongue 21 is detached from the key 11, the latter may then be withdrawn from the said casing'. Upon deta'ching'the key 11 from the tongue 21 the -barrel 10 may be 'detached from the said `key and lthe latter may then be withdrawn by sliding it longitudinally through the slots provided therefor in the plates 13 and 14 kand the barrel' and the 95 circular holes in the front` plates 4 and 7. The plates 13 and 14'and barrel 6 lremain in position in the casing 3 when the key 11 is withdrawn, through the action of the spring 205 and said key may thus be readily reinserted in place infsaid casing when desired. Notches 23 may be provided in the ends ofthe Abolts 1 Vto enable such bolts to be held stationary whilst tthe'nuts 2 are being' secured thereon.

IVhat I claim as my invention and desire to secure by Letters APatent is 1. A permutation lock comprising a casing, aslidable rotatable barrel in said casing, a key attached to said barrel and mov. 11o able therewith, av-barrel bearing attached to said key and rotatable therewith in which said'key is movable longitudinally,4 a stop plate having a notched periphery slidable on said key and rotatable therewith, a push 115 plate slidable on said `key and rotatable therewith, spring means associated with said key yand plates to distancefthem apart and to allow-return of saidkey to normal. positio-n, means for securing said lock to a struc- 12o l ture, meansassociatedwith said key yto operate -asecuring bolt when said key is turned,

and fitted to' said casing a series of 4press said stop plate to orm a combination to permitjsaid key to be turned when said com- "bination buttons are depressed. j

' 2. A permutationlockncomprising acas- 130 ing, a barrel fitting the rear of said-casing and rotatable and slidable therein, a bear-` Y ing barrel at the forward part of said cas- V ably secured, means fitting `the rear wall of the casing to enable the latter to be attached to a structure, a key to which said barrels lare attached. one of said barrels being movable therewith and the other being adapted to allow longitudinal movement 'of-v said key therein as well as to rotate with said keyA a tongue pivotally attached to the rear end of said key and rotatable therewith adapted to operate a securing bolt when said key is turned, a cover` plate secured to said key adapted to f prevent removal of said lfro-nt plate from said casing unless said key is turned from normal position, a stop plate having` a notched periphery secured to and slidable on said key, a series of press buttons disposed in said casing having reduced stems at the rear endand slots in their in-l termediate portion, said slots being adapted to be brought into register withsaid stop plates, as required to form a combination with any two or more of such buttonswhen the latter are depressed to permit said vkey to be turned, a series of springs secured to said casing, one for each said buttons, a push plate slidablysecured to said key and adapted to return said buttons to normal position after depression `thereof when said key is moved longitudinally.y anda spring associated with said key adapted to distance said latter plate and stopplatefrom each other and to permit said key barrel fitting the rear of saidcasing, and said push plate to he returned to normal position after longitudinal movement thereof.

3. In a permutation, lock having a casing to which is 'fitted a series of depressihle buttons with intermediateA portions thereof provided with slots, the combination of a key, a rotatable and slidable barrel, affixed to said-key, abearing barrel on said key and rotatable Atherewith adapted to permit longitudinal movement of 'said key therein, a plate secured on said key, a. plate slidably secured to said key and notched on its periphery, a' tongue p'ivotally attached to said key adapted when said key is turned to operate a securing bolt, and -a spring disposedbetwe'en said plates adapted to distance them apart and to enable return of said rotatable and slidable barrel, key,v

and push plate to normal position.

4. A permutation lock comprising in combination a casing, a series of depress'- ible buttons with intermediate portions thereof furnished with slots, a key, a plate notched on its periphery non-rotatably mounted on said key and adapted to cooperate with ,said buttons so that it may he rotated relatively thereto when the buttons are adjusted so that the slots therein register with said plate, means whereby said buttons are .normally held from rotating, means whereby a semi-rotation of such but-y tons varies the co-mbination of the lock, and means operable from Youtside the lockvcasing whereby said buttons may be rotated to veffect such .variation in the combination.

5. A permutation lock comprising in combination a casing, a series of depressible buttons each being furnished with two slots such slotsbeing situated on opposite sides of said buttons and at different distances from the ends thereof, akey, a plate notched on its periphery non-rotatably mounted on said key and adapted to cooperate with said buttons so that it may berotated.: relatively thereto when. the buttons are adjusted so that Vthe slots therein register" with saidy plate, means for normally preventing rotation of the buttons and meansfoperable from outside the lock casing whereby said buttons may be rotated so that one or other of said slots in each of said buttons maybe positioned to cooperate with said notched plate so that the combinationof said lock may be varied. f f

6. A permutation lock comprising in combination a casing, a series of depress ible buttonsv with yintermediate portions thereof furnished with slots, a leaf spring associated with each button and adapted to frictionally engage such buttons so as to maintain theml inthe positions in which on its periphery non-rotatably mounted on said key and adapted to .cooperate with said buttons so that it may be rotated relatively thereto when the buttons are adjusted so that the slots therein register with said plate, and means whereby said buttons are reversible so as Ato vary the combination of said lock.` n

7, A permutation lock comprisingin combination a casing, a series of depressible buttons each ybeing furnishedwith two' slots such slots being situated on opposite sides of said buttons and at different distances from the ends thereof, a key, 'a plate notched on its periphery non-rotatably mounted on said keyand adapted to cooperate with said buttons fso that it may be rotated relatively thereto when the buttons are adjusted so that the slots therein register with said tons adapted' to engage within square holes located withintherear wall of saidcasing .such stems being cylindrical "at their explate, stems on the rear ends of sai'dbut buttons may be positioned so that the cylindrical portions of their stems engage in said openings whereby. such buttons may be reversed so that one or other of said slots in each of said buttons may be positioned to cooperate with said notched plate so that the combination oi: `said lock may be varied.

S. A permutation lock comprising in conibination a casing, a series of depressible buttons each being furnished with two slots such slots being situated on opposite sides of said buttons and at different distances from the ends thereof, a key, a plate notched on n its periphery non-rotatably mounted on said'V key and adapted to cooperate with said buttons so that it may be rotated relatively thereto -when the buttons are adjusted .so that the slots therein register with said plate, stems on the rear ends ot said buttons adapted to engagewithin square holes located within the rear wall of said casing such stems V`being cylindrical at their. extreme rear portions and rectangular ontheir other portions, a plate maintaining said vbuttons with the square portions oi their stems engaging in said square holes and rmeans whereby said plate. may be adjusted relatively to said casing 'to allow oil said buttons being moved into such positions that j the cylindrical portions on their stems engage within said openings whereby such buttons may be reversed so that one or other of said slots in each of said buttons may be positioned to cooperate with said notched plate so that the com-l bination of said lock may bevaried.

9. A permutationlock comprisingln combination a `casing, a series of depressible buttons each being furnished vwith two slots such slots being situatedon opposite lsides of said buttons and vat different distances from the ends thereof,a key, afplate notched on itsv periphery non-rotatably mounted on said key and adapted to cooperate withsaid buttons so that it may be rotated relatively thereto when the buttons are adjusted so thatV the slots therein register with said plate, stems on the rear ends of said but tons adapted to engage Within'square holes Apositions that their cylindrical ends engage of which vis rotatable and slidable therevoperate a securing bolt when said key and moved to its non-normal position whereby the aforesaid plate maybe loosened from said casing and moved relatively thereto so that said buttons may be moved into such within saidopenings whereby such buttons may be reversed so that one or other of said slots in each of said buttons may be positioned to cooperate with said notched plate so that the combination of said lock may be varied` 10. In a permutation lock having a casing, a front plate detachably secured to said casing, a key attached to two barrels one with in said casing, and the other is rotatable with said key and permits.longitudinal movement of said keytherein, anda cover plate secured on saidV key and rotatable therewith, the said cover plate being adapted to prohibit detachment of said 'front plate from said casing unless said key is turned from normal position.

l1. In a permutation lock having a casing with tivo rotatable barrels fitted therein, the. combination of a 4key slottedat its rear end attached to said barrels and rotatable therewith one of said barrels being movable longitudinally with said key and the other barrel being .fadaptedkto permit longitudinal movementvol" said key therein` and a tongue pivotally attached to said key through said lslot therein adapted to tongue are turned. n 95 12.111 a permutation lock, a circular metal casing, the rear1wall1oii` said casing having openings therein to receive means whereby said casing may be detachably secured -to -a structure, and a' central'opening 100 in which'the rear end of a key is 'turnable, togetherv with a series of rectangular openings surrounding said. circular opening; a plate` detachablyvsecurable to the front of i said casing having a -central lianged open- Aing therein in which a key is yturnahle and a series of openings .surrounding said cen tral opening; and Va front plate for said casing detachably securable to said former plate and casing and 'having a central key 110 -turning opening and a series of openings surrounding saidxcentral opening, all said openings registering. with the openings in the said first `mentioned plate.

in testimony whereofl aifix my signature in presence ot two witnesses. f-

vHENRY SNODO'N STANDEN. llitnesses: f

W. J. DAVIS, jETHEL CARROLL.

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