US1437561A

US1437561A - Permutation lock

Info

Publication number: US1437561A
Application number: US531565A
Authority: US
Inventors: Shively Edward Elmer
Original assignee: Individual
Current assignee: Individual
Priority date: 1922-01-25
Filing date: 1922-01-25
Publication date: 1922-12-05
Anticipated expiration: 1939-12-05

Description

E. E. SHIVELY.

PEHMUTATION LOCK. APPLICA'HON FILED 1AN.25. |922.

lL437561 Patented Dec. 5, 1922.

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PERMuMTloN Lock. APPLICATION FILED IAN. 25,1922.. 1,437,561, Patented Deo. 5, 1922.

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PEBMUTATION LOCK.

APPLICATION FILED IIIII.25, 1922.

1,437,561 o Y Patented Dec. 5, 1922. 4 SHEETS-SHEET 4.

a l "I I I K6 K I 34' 30 l Edwa'dl/Z a velg Patented Deel 5, i922.

teaser erfreut EDWARD nti/run snrvnrr, or Dnraorr, arresteert. l

PERL'UTATEON LOCK.

Application filed January 25, `1922. Serial No. 534,565.

ln the drawings forming a part ol this specification, like characters of reference are used to designate the same parts in the several rligures,in whichfff Figure l is an elevation of the iront of a safe, showing the general arrangement oi1 various parts,

Figure l is a similar elevation on an enlarged scale showing elements oi'- a lock in accordance with this invention rin their proper relationship in a. portion of a sate door, y

Figure 2 is an elevation disclosing the mechanism` of the lock uncovered in the back of the safe door as disclosed in Fig ure la, i

Figure 3 is a horizontal sectionol the door. and lock taken on line 3 3 of Figure la, the lock being shown in plan and parts thereof: being omitted in this ligure so as to avoid confusion. l l

Figure 4 is a vertical sectional. view taken on line 4-4 of Figure 2, l

Figure 5 discloses a side and an'edge elevation of the base plate of the bolt member of the lock, e*

Figure 6 is an elevation of the bolt and its carrying plate, Figure 7 discloses` elevations permutation tumblers, and

Figures 8 to 14` 'nclusive disclose detail views of various other parts of the lock.

The lock comprising the subject matter of this invention is represented as being mounted in the door of a safe 20, and as seen of one of the vin the front views of the safe, includes a combination lock 2l, key lock 22, and op`erating handle 23.

The combination lock 20 includes the knob i 24, dial ring 25, tumblers 26 and. 27, change wheel 28 and driver 2 9, as best shown in `Figures* 2 and 3. ,The permutation members also have a. tumbler 30, shown in the detail 4views in Figure pgthis tumbler has a projection 3l for operating a plunger as will hereinafter appear. l The'tumbler members rv26, 2T and 28, are provided with slots such aslk32 inthe change wheel 28 and tumbler 26 (see Figure 18), whicm when the tumblers have been yturned to the correct combination so that the slotsllne up 1n the re yquired manner willy receive a projection 33 ofi the bolt men'iber so that the bolt may lie retracted for opening the safe.

i` rlFhe bolt member comprisesasliding plate 34 Carrying the projection 3? and a bolt bar 35 with the bolts 86 which project through apertures 37 in the sale door, and a spring 34 is provided for'retracting said member. As shown in Figures 2, 3 particularly, and 6, the projection 33 is tapered outwardly towardthe change wheel 28 so that it cannot be used as a eeler tor the

permutation tumyblers

26 and 27 which have to be set irst.

.fi base plate 38 upon which platei is inounted is secured to the salie door by means ot "four machine screws 39; it is provided with'a tapped lug40 for receiving a studk screw 4l which passes through a slot-42 in the bolt plate for guiding it. There are recessed lugs 43and 44 extending 'trom the baseplate which carry spring pressed pins ,'45 and 46 that normally project through

apertures

47 and 48 in the bolt plate when the bolts y36 lare projecting outwardly from the safe door intheir lockingposition.,` rllhe base Aplate'also has a lug 49 tor receiving the stem 50` of the operating handle 23; this stem on its inner end is providedwith a `gear y51 which meshes `with a rack 52 on the bolt plate and isfadapted to vreciprocate the same, when it is free/in the customary man ner.` v

' Before the bolt plate can be moved'for'retracting the bolts 36 it is Atirst necessary to ytorce the /pins`45`a`nd 46 back into the lugsy "and out o'r` the

apertures

47 and 48 so as yto allow' it to slide freely. T he first lpin is moved by means of the end of'a key 53 passing through the lock 22, andk pin46 is moved byl means of `the projection 31,011 the turnlbler .30.

Lock 22 includesthe drum Ifor receiving key 58 an'dspring-pressed tumblers 55, andback plate 56 which are of the usual construction.' The back plate 5G has an ex-rr tension 57 having a pin and slot connect-ion 5S with the bolt plate 34; the slot is arranged so as to extend cross-wise of the bolt plate so that there may be play in the connection of the pin and slot lengthwise of the slot but not in the direction et' the reciprocation oie the bolt plate. rllhus when the proper key 53 for releasing tumblers 55 is inserted the reciprocation ot boltfplate may be effected by means of the operating handle 28, and when the key is withdrawn the tumblers 55 will lock the drum from turning thereby preventing the reciprocation of the bolt plate. There are also a pair of projecting lugs on the back plate which carry a pivoted lever 6() having a spring 6l connected at 62 and with the base extension 63 which carries the lock tumblers and forms a bearing tor the drum. This spring 6l holds the end 62 oi' the lever normally against vthe back plate. However when key 53 is properly positioned in the drum 54, its end 53 will turn the lever on its pivot against the tension of spring 6l and the end 64 of this lever will cooperate with the projection 65 of a lever 66 for forcing pin 45 down so as to disengage aperture 47 in the plate. lt will be noted that lever 60 is maintained in its releasingposition, bearing on lever 66, in any position of the bolt plate 34, and that ai'ter the pin 45 has been disengaged 'from the aperture, and the plate has been moved the end oi' the pin is maintained in its depressed position by its sliding' engagement with the plate 23, and is kheld there independent of the lock and key. Lever 66 is pivoted in lugs 67 extending from the bolt plate, and its end 68 has a set screw 69 for adjusting it and for holding lever 66 so as to keep pin 45 out of the aperture 47 in the plate when desired.

Pin 46 is moved out of its aperture 48 in the vsliding plate in a similar manner by a projection 70 on a lever 70 (see Figure 12), pivoted in lugs 71 extending from the bolt plate; this lever has a set screw 72 which operates in the same manner as set screw 69. A bracket 73 (Figure 8) is secured to the base plate 38 and carries a lever 74 (Figure 9) pivoted thereto at 74 and va plunger 75 (Figure ll). rlhe lever 74 has an arm 76 which is yengaged by the end 77 of plunger 75 and la projection 78 on yits other arm tor engaging lever 70. A guide member 79 ('Figure l0) is also secured to the base plate along the side of the bracket 73 and its biturcated end 8O is adapted to receive a portion of the head 8l of the plunger 75. The various elements are shown assembled in the elevation, Figure 2, and it will be seen that when theprojection 31 onthe tumbler 30 engages the head 81 of the plunger, the various levers will be acted upon and move the pin 46 so as to disengage the bolt plate 34.

A protecting cover 82, as shown in Figures l, la and 14, is preferably positioned at the end' of the drum 54 for closing the key lock. This cover comprises a base member 83 which is secured to the door oi the safe in a position-surrounding the exterior iange S5 ot the drum 54, and a plate 66 pivoted thereto and having a spring 87 for closing it when the key is withdrawn.

In operation7 tumbler 30 is turned so that the projection 3l will release the pin 46 from the bolt plate and the

tumblers

26, 27 and change wheel. are set to the proper combination iii the usual manner in order to aline the slots 32 for receiving the projection on the bolt plate. ritter key 53 is inserted so as to release the pin 45, the bolt 36 may then be retracted by turning the operating handle 23, or by means of the spring 34. lt will be seen that in the operation of the tumblers that the tumbler 30 is the lirst to be positioned, then tumblers 26 and 27 and the change-wheel 28 in order; thus it would be impossible to use the tapered projection 33 as the tumblers.

Ubviously7 either pin 45 or 46 and the respective operating mechanism may be omitted as in some constructions the key lock 22 may prove objectionable, therefore the pin 46 and permutation members alone may be employed. Likewise, any number of such pin locks maybe used in the lock, with key locks or permutation tumbler-s for operating them. ln case the combination lock for releasing the sliding bolt members is blown ofi', the bolts 36 still cannot be retracted since the releasing plunger 75 is forced out by its spring 88 without releasing the pin 46. n

Many other advantages of the herein described invention will readily suggest themselves to those skilled in the art to which it appertains.

Having thus set forth the invention, it is not desired to have it conned closely to the specific disclosures in the drawings, it being understood that changes rmay be made in form, proportion and organization of its various parts without departing from the spirit of the invention as indicated by the following claims. A*

l/Vhat is claimed as the invention, and is desired to be secured by Letters Patent is:

il. .ln a lock .including` a bolt member mounted on a sliding' plate adapted to be reciprocated :tor positioning the bolt member in locking and retracted posit-ions, an operating member for reciprocating said member7 pin members norn'ially projecting through apertures in the sliding bolt plate so as to hold vthe same against movement, a key, a key lock having means engaging with said sliding bolt plate, means extending therefrom for displacing one of said pins a l-'eeler for lining from said plate when tbe key is positioned so as to bold the same against movement a key, a key lock having means engaging with said bolt plate with means 'for displacing said pin from the aperture in tbe plate when the key is positioned .in the lock.

in a lock including a bolt member mounted on a sliding plate adapted to bereciprocated 'for positioning the bolt memberI in locking and retracted positions, an operating member for reciprocating' said member, a key, a key look including arotatable drum and tumblers for locking tbe same, and a connection betweentlie lock drum and said sliding bolt plate for preventing the same from being reciprocated except when the key is positioned in tbe lock for releasing the tumblers.

et. ln `a lock including a bolt member mounted on a sliding plate adapted to be reciprocated for positioning tbe bolt member j in locking and retracted positions, an operating member for reciprocating said memtlirougli an aperture in tlie sliding bolt plate so as to bold the same against movement, a permutation lock, and meansk for displacing said pin from said plate including a tumbler of the permutation lock.

5. ln a lock including a bolt member mounted on a sliding plate adapted to be reciprocated for positioning the bolt member in locking and retracting positions, an operating member for reciprocatingsaid member, a projection on said sliding bolt plate, a permutation lock tbe tumblers of which are adapted to receive said projection when the lock has been set to the required combination, a pin member normally projecting through an aperture in the sliding bolt plate so as to hold the same against movement, and means for displacing said pin member from the aperture in said plate whereby it may be reciprocated to a position with said projection Within said tumblers.

6. In a lock including` `a bolt member mounted on a sliding plate adapted to be reciprocated forpositioning the bolt member in locking and retracted posit-ions, an operating member forv reciprocating said member, a projection on said sliding bolt plate,

ra permutation lock the tumbleis of Which are radapted to receive said projection when the lock has been set to the required combination, a key, a key lockk including a rotatable drum and tumblers for locking the same,

and a connection between the lock drum and i said sliding bolt plate for lpreventing the same from being reciprocated except when kthe key is positioned in the lock for release ing the tumblers. bei', a pin member normally projecting In testimony whereof I atiiX my signature. i

EDWARD ELMnn snivnLY.