US1621422A - Lock - Google Patents

Description

March 1927' N. LAPPAS LOCK Filed March 22, 1926 v E l I J/ paemed'Ma 9.

. v r 1,631,422; r UNITEDSTATES MEN ;FHCE.

I NIKITAS LAPPAS, oF PEABODY, MAssAoHusE'rtrs. "nocx fi 1 Application filed March 22,- 1926. Serial No.96,578.

The invention relates to improvements inpermutation locking mec'hanism16 is mountlocksand more particularly to. keepers thereed on the plate 13 and includes'an assembly for,and the'present application discloses a of looking members 17"ha-ving laterallyprokeeper which is primarily intended for use jecting arms 18 which may be turned bythe 5 in connection withhxpermutation' locking controlmembers 19 and 20, sothat all of n1eans, such as that shown by my U. S..Patthem. are in alinement or out of alinement, entNo. 1,571,125 .of January 26, 1926. In asflthe case may be,,and when said arms; are the patented construction, the locking means alined with feacli other. as shown in .FigureQ, included .a plurality of coaxially mounted being at thatt-ime alined with thejlateral 1 0 locking- -members having laterally projecting portion 12 :.ofthe keeper opening,-they may 7 arms,-'all' of s which could pass throughf an passthrough thisopeningyif it is nototlier opening 'in a keeper plate, when said arms. wise obstructed, .so as to permit outward were aimed by manipulation of a pairizof swinging of the plate'13 andconsequent-disrotatable members. It is the primary object connection oi the members Aand B, When7 V 1 of the present invention however to prothe 1arms'18 are out of alinement withthe vide a rotatable guard plate mounted at the portion 12 of 'the pening, however and'pref I v inner side of the keeper plate and provided erably outofalinementwitli each other, the with means wherebygitmay be rotated, said .plate 13 will of course be locked to the guard plate being itself formed witlran keeper. 8, so thatjthe' members Aand B are 7 a opening which Imust be alined with; the securely, lockedto eachlother. V

opening of said keeper'plate, before the arms The parts so far briefly described, are disof the-locking memberscanpass outwardly closed in my patent, above referred to permit release of the 1001:. 1 V e to, and no claim is being madefor themex- I Another object of the invention is 'to'xpro-' cept in connection with theimprovements vide exceptionally simplaand inexpensive, now to be described.

yet efficient means'for mountingand rotat- Rotatably' positioned at the inner side ofing'theguard-plate, 1 .1 the keeper-plate 9, is a guard'plate 21 hav- With'the foregoing inviewfthe inven- 111g an opening which preferablycomprises i tion resides in the novel subject matter herea" main portion 22;andj a laterally extending inafter described andclaimed, the descripportion 23, thESGPOI'tlOIIS being adapted for tion being supplementedby the accom'panyregistration. with; the yopening. portions ing' drawing. e 1112 ofsaid keeper plate 9, when the Figure 1 is a plan View of a locken' bodyguard plate is turned to'the proper position, ing my improvements. t p 4 In fact, theportion22of the guard plate Figure 2 isa longitudinal sectional view opening is always in r'egistratioirwith'the as indicated-by line-'2'2 of'Figure 1.. portion 11 .of the keeper plate opening,bnt r Figure 3 is a horizontal section as indiwhen the device isilockedflhe portion 2310f 'cated by line 3-3 of Figure v2. ii" 1 sald guardplate'openlng is, outtof registralgure i is a transverse sectional view.- on tion with the portion 12 of said-keeper plate Kline H'of Figure 3.; 1-. r 1 opening. "Thus, eventhough' soinehunani Figurei5 iis a top plan view of the guard ,thorizedwperson should succeed in learning plate. 1 r 1 y the necessary combination to aline the arms In the drawings above briefly described, A 18 with the portion 12 of the keeper plate and B designate two memberstobelocked opening,saidarmscould not at that time together. Secured to the-'memberA byfsuitpass outwardly to release'the, look, as they able fasteners 6 and 7, is a keeper '8,bs'aid would'then be obstructed by the guard plate keeper comprisiiiga plate 9 having a lateral- 21.. Hence, in order: to openthe lock, it is 1y projectingannular flange 10 which bears necessary to also know the proper position against said member A., This plate is at which to set the guard plate,,so as to ali'ne formed with an opening which preferably the p0rt10ns'12 and-23 of the openings, as

comprises .a centrally disposed body porseen in Figure 2. Means-are of course protion 11 and a laterally extending portion 12. vided whereby this guard plate may be *ro-. The numeral 13 designates an outer plate tated' from the exterior of the lock. Prefwhich suitably hinged at 14 to the mem erably this plate is provided'with a laterally .55 vber B, said platepreferably having a flange projecting continuou'sflange 24' which en-' 15 which extends around the keeper 8. A gages the innerfside of the flange 1:0 and is guard by means of which it may be rotated.

and has its inner end supported by an ap- The outer end of this propriate bearing 28. shaft 27 projects from the flange 1O andis received in a notch 29 in the flange of the plate 13, the outer extremity of said shaft being equippedwith' a knob or the like 30 At apointldiametrically opposite the pin ion 26,1 provide a :roller 31 to engage the edge of the flange 24, so that this roller and thefpiniou 26., hold the plate21-in engagement with the keeper plate 9, insuring smooth rotation of said plate 21. Pr-eferably, the 'roller 31-is provided with-gear teeth to engage the teeth of the tla-nge24r. Any desired means may be employed for rotatably supporting this when but Iprefer tomake use of a'short shaft 32 havingits outer end mounted in an opening in'the flange 10, while .its inner end is supported :by an appropriate bearing bra ketBi-l, secured. to the inner side of said flange.

The peripheral portion. of the guardplate 21, is provided with a plurality of num bers or other suitable indicating characters (see Figures 1 and 5) and these characters are visible one at a time, through aview opening 34 in the two plates 9 and 13. The legitimate operator of the lock knows exactly what character must appear in the opening 351:, in; order torthe portion 23 of the guard plate opening to be in alinement with the portion 12 of the keeper plate ope-ning, and hence by turning the knob until that character appears, he may readily release the lock. -Obviously, the, arms" 18 may be alined and properly positioned by manipulttiono-t the control 'memb'ers' 19 and 20, either before .or after the guard plate. 1 is set at released position.

Excellent results 7 have been obtained iro n the details disclosed and they are preferably followed. However,.within the scopeot't he invention-as claimed, variations may of course be made.

I claim: 7

1-. In a lock,a keeper plate having an opening, an ou ter plate engageable with the outer side of said keeper plate, permutation locking means mounted on said outer plate and including locking member mov able through the opening of the keeper plate, a plate atthe inner side of saidi keeper opening through which to insert a locking member, said keeper plate having a later- .-.ally projecting continuous flange, a guard plate at the inner side of said keeper plate 7 having an opening which is. adapted to be moved either into or out of alinement with thenkeeper plate opening to form an additional lockinghmeans, said guard plate being,.'of circular outline and having its peripheral portion in engagement with and surrounded by saidtflange to be guided in its rotary movement thereby, and. means for supporting said guard plate rotating it. :23. In a lock, akeeper plate "having an opening through which a locking member may pass, a said 7 tinuous laterally projecting flange,: a guard plate at the inner sideof said keeper plate having an opening adapted to be moved into or out ofregistra-tion with the keeper plate opening, said guard plate having a laterally projecting continuous flange which engages the inner side of the first named flange and istormed withgear teeth, rotatably mounted members carried-by the first named. flange and engaging the flange of said guard plate to rotatablysupport the latter, one of saidrotatably mounted members having gear-teeth meshing with the teeth of said. guard plate -flange,qand exe posed means connected. With the member for rotating it to, thereby rotate said guard plate. J r

4. In a look, a keeper plate having an opening, an outer plate engageablewith the outer side of said keeper plate, permutation locking. means mounted on said outer plate and including a locking membermovable through the opening of the, keeper plate, a

guard plate. at the innerside of said keeper plate movable. either into obstructing or non-obstructing relation with the pening :thereofi'exposed means whereby said guard plate may be rotated, and. circumferentially spaced indicators on said guardyplate, said keeper plate and said outer plate having a view opening through which said indicator may be seen.

In testimony whereof I, have hereunto atfixed my signature. I

7 :NIKITAS LAP-PAS.

keeper plate having acontoothed

Images