US2668433A - Combination lock - Google Patents

Combination lock Download PDF

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US2668433A
US2668433A US197530A US19753050A US2668433A US 2668433 A US2668433 A US 2668433A US 197530 A US197530 A US 197530A US 19753050 A US19753050 A US 19753050A US 2668433 A US2668433 A US 2668433A
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disc
discs
combination
core
latch
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US197530A
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Schnegg Auguste
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    • 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
    • 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
    • Y10T70/30Hasp
    • Y10T70/308Combination lock
    • Y10T70/317Hasp-carried
    • 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
    • Y10T70/50Special application
    • 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
    • Y10T70/50Special application
    • Y10T70/5009For portable articles
    • Y10T70/5031Receptacle
    • Y10T70/5035Bag
    • Y10T70/5049Attache or briefcase, portfolio
    • 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
    • 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
    • Y10T70/735Operating elements
    • Y10T70/7367Tumbler structure and position

Definitions

  • latch l'0' :"mounte'd' inthe slot''gis'allwed to""' andth'ereby ⁇ al-low'thedlatch to'.sld'e towardsits'A l. slideithereinlinza direction;.perpendiculait'itdtleif' locking -position',' ⁇ it"-'bing .thus, pqssibl'etd effet axisof the.
  • Tlie latclris'provided ⁇ r ⁇ Figi 1 isiafiongitudinaizseetion, 'en iineJ-'Ior with equidistantsawtype teeth '15," liandi Fig: 23S-of'the -loclc in'-tfie ⁇ 'closed' position, together 35 The upper' member-A Whichis toi'b fastened?
  • Figi-'5 is*a-pIairfviewofthisuisc;its"lower sur.- outline ,21;ito enable" the" guiding ⁇ .core T torass.' facebeing shown? through:A In' the' circular'edge28""ofithei cavity' Figs. 6 and 7 are respectively en axial section 45 25'anarrow'eroovex2'9'is'providef Ofi upper onx Vline LVILLVI'- "of AFigfand Ta. p1'a'n"'vi'eW”frm surface' round the' carityjz'th'frame'.
  • a .rstannular disc' 3' I is' accommodated. 11111131.16. thief-closed I1aosiftion;along the' axisof the' guiding cavity 25 in' 'such'a Way asto becapable'ofturne Goreyl ing,in' 'this cavity, abo'ut'th'everticalaxs'of Fig 'illustrates'the'latch'imperspectii/e.View. metryof'th'e' frame l'8.”Thi's' disc ,3 l".i"s' provide ⁇ d,j.
  • a complementary deep groove 38 is formed in the peripheral wall of the disc 3I.
  • the second disc 36 co-axially arranged on the rst disc 3I, in its turn comprises a recess or cavity 48 serving to accommodate a third disc 46 the shape of which is similar to that of a cap.
  • the second disc 36 is illustrated in detail in Figs. 4 and 5. This disc is provided with a narrow groove 42 in the inner cylindrical edge of its cavity 46 and with a narrow deep groove 43 in its periphery.
  • the inner wall 44 of this disc 36 is sunk in relation to its upper and lower surfaces and is provided with a circular aperture 45 with a conical edge, the generatrices of which are practically parallel to those of the guiding core 1 when the lock is in the closed position.
  • the second disc 36 carries the cap 46 comprising a flat intermediate wall 41 provided with a circular aperture 48 with a conical edge, this aperture being coaxial to the axis of symmetry of the frame I8.
  • the outer cylindrical edge of the cap 46 is formed with a narrow deep slot 49.
  • the inner extremity 58 of this cap is shaped so as to t the top of the guiding core 1 exactly.
  • is cut, the depth of which is equal to the height of the tooth I1 of the latch I8.
  • a second circular groove 52 is provided between the intermediate wall 41 of the cap and the intermediate wall 44 of the second disc 36; the depth of the groove 52 is scarcely greater than the height of the tooth I6 of the latch.
  • a third circular groove 53 is provided between the intermediate wall 44 of the second disc and the wall 33 of the iirst disc 3I.
  • notches 54, 55 and 56 are respectively cut, which are slightly wider than the teeth of the latch III and having a depth substantially equal to the height of the upright side of the saw Vteeth I5, I6 and I1.
  • the bottom wall 26 of the frame I8 is likewise provided with a notch 64 in its circular aperture 21.
  • the two discs 3I and 36 and the cap 46 are kept in a convenient position on top of one another on the frame I8 in all positions of the supporting member A.
  • radially deformable retaining, cut rings 51, 58 and 59 are each engaged in two corresponding grooves at the same time.
  • the rst ring 51 is conned within the groove 29 of the frame and the external groove 38 of the rst disc 3I the second, 58, within the grooves 31 and 431 of the rst disc and of the second disc 36 respectively;
  • the third ring 58 is coniined within the internal groove 42 of the second disc and the deep groove 49 is providedin the cylindrical external edge of the cap.
  • the two discs 3i and 36 and the cap 46 are each marked on the upper surface with a radial adjustment line 68, 6i, and '62 respectively; eachv of these lines has to be made to coincide with the radius passing through the corresponding letter 38 of the chosen combination, on the frame I8.
  • the lock Assuming that the lock is closed, it can be opened only by bringing the notches 54, 55 and 56 of the Vtwo discs and the cap into alignment with the Viixed notch 64; this alignment is effected by turning the discs and the cap, independently of one another, so that the adjustment lines 68, 6I
  • Vand A62 are pointed towards the letters. of the secret combination.
  • the discs and the cap then occupy the positions illustrated in Fig. 1, in relation to the latch I8. It is seen that the sawteeth I5, I6 and I1 can pass freely through the corresponding notches 54, 55 and 56 when the operator lifts the supporting member A with the frame I8 and the members which it carries: the discs slide axially along the guiding core 1.
  • the lower fiat part B is at all times clamped between a base plate I38 and an external anchor plate I3 I, the plates being held together by rivets 3 and 4.
  • 30 is fixed by screws 61 to a flange of a guiding core 68 and to a ring v68.
  • the conical guiding core 68 is provided.
  • operative part 1I of a sliding latch
  • operative part 1I one edge of which is cut out so as to be provided with two or more locking teeth 12 and 13 is supported by a small base plate 14 which can slide in the interior of the ring 68, between the base
  • a rounded triangular wireA spring 15 is supported in a circular recess limited by the ring 69. This spring having its extremities engaged in holes 16 in the small base plate 14, urges the latch 1I-14 as shown by the arrow F1 (Figs.
  • a narrow groove 84 provided in the cylindrical edge of the cavity 88 partly accommodates an assembling flat circlip 85.
  • the upper annular surface 86 of the frame II8 is provided with letters of the alphabet which are not shown in the drawing but are arranged in the same way as the letters 38 in the first embodiment (Fig. 2), for the combinations which enable the lock to be opened.
  • a rst annular disc 81 is accommodated in the cavity 88 in such a way as to be able to turn, in the cavity, about an axis RF-R which is common to the two discs 81 and 88.
  • the disc 81 is ThisV shaped.
  • Theasecondadisc aisissprowidedswit action Ebre-saure Thesunttzsconsiste.- aiccntral wallen withfi afcentralsapertnre'yazitlitiilwgmthe i88ffisd7hen remoxzedfrbm: enablentheicore: .B 8fto passzt-hrouglm. theafremeatl 8i When..-.the-.lockwisi.irrether; losedf positiomsthe lockingggtoethe'lZ-offthei latclmisaengagedrfreel f f betweem theiwall.
  • lo-ofrthefdiscfm Zand ithe'rcentmis extremitiess walt ⁇ tof Lthe secondidisdsandithe secondgtootrtftlsttouoh ⁇ .position shewzrzi 1:bis:engagedireelyebetween-this shallwaitibi circlipsI 9'3 ⁇ irveili be.'enablemtorfescapaGirmi thea and theeextremityfioff:thedisc'rewhich outcivesgmaveae-SZ-sgundexifthe actioneofrranfiax 1.11 f.. The :f';dscs;f.f'
  • Thecircular'apertures'g and 95"i ⁇ n ⁇ the' to said first flat Dart and shaped to form a rerotary discs are provided with radial notches 89 cess limited by a Hai? bOtiOm parallel t0 the rSt and 95 respectively which are a little wider than 36 flat part and by peripheral walls; said guiding the teeth 12 and 13 of thelatch.
  • said base-plate being held in said notches 89' and 95 are brought into alignment 45 recess by the lower face of said core, spring with the slot 1i) containing the latch, by pressing means yieldingly applied on the peripheral walls with the fingers on the milled parts 81' and 88' of said recess and on said base-plate to urge the so as to point the adjustment lines towards the teeth of the latch outwardly of said radial slot letters of the secret combination.
  • this lock is the same as that 'of the iirst embodi- 2.
  • a first part carrying a first
  • the central partition 18 is provided with an portion of said combination lock comprising a arch-shaped window 98 for lateral access tothe hollow guiding core provided with a sliding circlip 85 and the wall 98 is provided with an 55 toothed latch, a second part carrying a second arch-shaped window 99 for access to the second portion of Isaid combination lock comprising a circlip 93.
  • 8) communicates with a notch
  • the extremiinner slot, whereby these discs are separately ties of the circlip 85 are bent back inwardly as at rotatable and cooperate with the teeth of the 85' (Figs. 12 and 13) and those of the circlip 93 latch, the following structure comprising: supare likewise bent at 93'.
  • the circlips 85 and 93 when free have maxi- 88 and shaped to form a recess limited by a fiat mum diameters slightly greater than those of bottom parallel to the first flat part and by pethe respective grooves 84 and 92 of the frame and ripheral walls; said guiding core being of subof the rst disc, and as a result the said circlips stantially conical shape and being fastened to bear resiliently against the bottoms of these said supporting members, said core comprising grooves.

Description

A. SCHNEGG COMBINATION LOCK Feb. 9, 1954 2 Sheets-Sheet l Filed Nov. 25, 1950 17N VENTOR A ususTE S cri/V566 9V/ff? ATTO/NE Y yFeb. 91954 A. scHNEGG 12,668,433
' COMBINATION LOCK Filed Nov. 25, -1950 2 Sheets-Sheet 2 f3! iso lj/v' VENTOR ATTORNEY Patented Feb. 9, 19.54 l' v ssi*l PAsi' olii-'ICE' i Applato'rNvembr-25, 1950, SerialNo:1971,53()l Claims. priority; application Switzerland July v19, 1950.
Thisinvention;re1ates' to'jaf combination VLlook Fg's 12 and'1'3 showl the mountingof two cone.` adapted;to'connect two. separablelparts.; th'isjlocki. secutive coaxial' discs, on alargar scal'eltlan 'that L comprising on the one banda plurality of. coaxial of,Figs 10'and11'.V discs capable 'of turninggindependently' of;` 011. In .Figs. 1 and.,8 .thetreferenceletterswAandBL anothei'about their'axis'and'-ontl'1'e other, handa 5 indjcatejhejwo separablejparts or members to be toothed 'iocking fd'evice'L, these. discsabing. formed: l fastenedv together by.-A means 4`of` the: combination... Witirfcircular'grooves on' the inside; provided'.with 10ck radtlmnotcnes Which'whn brought into' a given In..1thefrstembodimentt(Figseitoc'llthealoweae posmon permit the 'Said teeth' t0 passfthus allow' member -B-f-isi-.clampect-fbetweenaebase' plate eta. ing the lock: to'be'un1ocked2`" l0 whioh mayybe round :orf: otherwisea shapedg-gandse another pla-te;v 2 fof; q-.thefsame fshapestheiiplates v.' being xecl- :together-by f fourerivetsioewhioh;twee.; 3 and@,-Lare-.shoWxiimFig Thezfbaseiplata-ilis'e. provided AWiths'fa `s centrale circular .openinga 5i eine which. is.' engaged-:thea base :6. offtheiguiing: com-i1: f? Whichis in the;formiofafhollowcone;-Thias l tening of'ithe: core to thei-:platei'l eiictedi` caiilking, its lowenfedg'e fffinithee'openinger Theae position in' relatiorVto'the said. grooves and.. aA ..20 gmdmg com 1 1S .'f'omedv' Wit-'hi a lctflmgumagmk' 1e'mein-gap@sitimu--tewards Awhich' iuris, iesiiieriily;v S10 5' made'so'astocfve 9" `fmtwn`-th`lengtl urged;l what Whenthe .1o-ck is bingwlosed the vof theexternalan internal;generatricesfoit'the edges of thegrooves ,act 'onth oblile sides of @one (Fg-'6)""'-' The'Xng 0fI thev-sa'ldcore'totlief theteeth'and thugdispmthmtcrgtowandthe, base plate-I' 'is' facilitated@"b5lr the'-'shoulder'-19'lati inoperativefposition"until"A the 'grooves .proper25 the'bttomof thecorereachiaposition oppgstethe corresponcmg teei-,hl` A. latch l'0',:"mounte'd' inthe slot''gis'allwed to""' andth'ereby` al-low'thedlatch to'.sld'e towardsits'A l. slideithereinlinza direction;.perpendiculait'itdtleif' locking -position','^it"-'bing .thus, pqssibl'etd effet axisof the. core 'l (Fig..'1).` Itis"provi'ded"witlfa theclosure'of'tne l'ockwith tli discs any relaL- stopping' catch'i I which prevents'itfrorirl'eaYing'N tive angular positiom 30 the slot. A"'plate'espring:|21"theextremties'iof Theatteehedfdrewine 'represents two rem-bedi-` whi'ch 'aresupported' 'against'the'in'side Wall t3'10f ments1 'oftheinvention; chosen by way of "ex-i the' C0re,...'.bea1's`, "vi/'ithtsv convex'pa'rt'", fagainstf'* amples* l the' backside of the latch.' Tlie latclris'provided`r` Figi 1 isiafiongitudinaizseetion, 'en iineJ-'Ior with equidistantsawtype teeth '15," liandi Fig: 23S-of'the=-loclc in'-tfie^'closed' position, together 35 The upper' member-A Whichis toi'b fastened? with-the two-memberswhich'th'e io'clepisintendea; to". the lowerm'ember Bby'means Of'tlie'ldckis.: toffastemtogetherr clamped to. a frame' i8" an'dpa bottom plate lfbotli" It'isian ob'jectcof the' presentinventionto1,pro. vide-'inea combination'lock of the above c1a`ss,. an` upstarrdingcore'overrWhi'chthe discs slide axially A When-"the "'lo'ck' being; opened or .closedj'anci which t'carriesa isliing llatch *provided with the.. 15 above:rner-itionedv .teeth in the? form. of..dis"sym. metrical*teeth corresponding; ,.nHmbrwand.. in.. i arangement;;' with'.' the .circularL grooves, thisN latchb being''capable'.` 'ofeassumin'g aninoperative pige-4 Yis afdiva'metrica-l" septionyon 1in@ Y1'V;' '[V"' cess of cavity'25fthe bottom Wall 26`of'tliisirec'essjf" of-'Fif 'fofa-single* dis'cg beingjprovided withA an'aperture' With'a circulars."
Figi-'5 is*a-pIairfviewofthisuisc;its"lower sur.- outline ,21;ito enable" the" guiding` .core T torass.' facebeing shown? through:A In' the' circular'edge28""ofithei cavity' Figs. 6 and 7 are respectively en axial section 45 25'anarrow'eroovex2'9'is'providef Ofi upper onx Vline LVILLVI'- "of AFigfand Ta. p1'a'n"'vi'eW"frm surface' round the' carityjz'th'frame'. |18 i's'proe; aboverof'th'eguidingicorer* -vide'd with signs 30:,"for instance the letters: ofjthm.'
Figa J8 fis" 'a i longitudinal' section of *tl'elock fin 50 A .rstannular disc' 3' I is' accommodated. 11111131.16. thief-closed I1aosiftion;along the' axisof the' guiding cavity 25 in' 'such'a Way asto becapable'ofturne Goreyl ing,in' 'this cavity, abo'ut'th'everticalaxs'of Fig 'illustrates'the'latch'imperspectii/e.View. metryof'th'e' frame l'8."Thi's' disc ,3 l".i"s' provide`d,j.
Fllgl-U 1' viewfinmlang from'ib'e'lo'w; of' the Witli acentral circularaperture' 32`in1itswallj baseplate. carrying-the `core 'and' the latch'.. 55 -33 which'i's deepwthrespectto'theuppersurface which can be turned about the axis of the frame I8. As in the case of the frame, the cylindrical edge of the cavity 35 of the rst disc is formed with a narrow groove 31.
In addition, a complementary deep groove 38 is formed in the peripheral wall of the disc 3I. The second disc 36, co-axially arranged on the rst disc 3I, in its turn comprises a recess or cavity 48 serving to accommodate a third disc 46 the shape of which is similar to that of a cap. The second disc 36 is illustrated in detail in Figs. 4 and 5. This disc is provided with a narrow groove 42 in the inner cylindrical edge of its cavity 46 and with a narrow deep groove 43 in its periphery.
The inner wall 44 of this disc 36 is sunk in relation to its upper and lower surfaces and is provided with a circular aperture 45 with a conical edge, the generatrices of which are practically parallel to those of the guiding core 1 when the lock is in the closed position. In its cavity 48 the second disc 36 carries the cap 46 comprising a flat intermediate wall 41 provided with a circular aperture 48 with a conical edge, this aperture being coaxial to the axis of symmetry of the frame I8. The outer cylindrical edge of the cap 46 is formed with a narrow deep slot 49. The inner extremity 58 of this cap is shaped so as to t the top of the guiding core 1 exactly. Between the extremity 58 and the intermediate wall a circular groove 5| is cut, the depth of which is equal to the height of the tooth I1 of the latch I8. A second circular groove 52 is provided between the intermediate wall 41 of the cap and the intermediate wall 44 of the second disc 36; the depth of the groove 52 is scarcely greater than the height of the tooth I6 of the latch. Lastly, a third circular groove 53 is provided between the intermediate wall 44 of the second disc and the wall 33 of the iirst disc 3I. In the separation walls 33, 44 and 41 of the grooves 5I ,V52 and 53, notches 54, 55 and 56 are respectively cut, which are slightly wider than the teeth of the latch III and having a depth substantially equal to the height of the upright side of the saw Vteeth I5, I6 and I1. The bottom wall 26 of the frame I8 is likewise provided with a notch 64 in its circular aperture 21.
The two discs 3I and 36 and the cap 46 are kept in a convenient position on top of one another on the frame I8 in all positions of the supporting member A. For this purpose radially deformable retaining, cut rings 51, 58 and 59 are each engaged in two corresponding grooves at the same time. The rst ring 51 is conned within the groove 29 of the frame and the external groove 38 of the rst disc 3I the second, 58, within the grooves 31 and 431 of the rst disc and of the second disc 36 respectively; the third ring 58 is coniined within the internal groove 42 of the second disc and the deep groove 49 is providedin the cylindrical external edge of the cap.
The two discs 3i and 36 and the cap 46 are each marked on the upper surface with a radial adjustment line 68, 6i, and '62 respectively; eachv of these lines has to be made to coincide with the radius passing through the corresponding letter 38 of the chosen combination, on the frame I8.
Assuming that the lock is closed, it can be opened only by bringing the notches 54, 55 and 56 of the Vtwo discs and the cap into alignment with the Viixed notch 64; this alignment is effected by turning the discs and the cap, independently of one another, so that the adjustment lines 68, 6I
Vand A62 are pointed towards the letters. of the secret combination. The discs and the cap then occupy the positions illustrated in Fig. 1, in relation to the latch I8. It is seen that the sawteeth I5, I6 and I1 can pass freely through the corresponding notches 54, 55 and 56 when the operator lifts the supporting member A with the frame I8 and the members which it carries: the discs slide axially along the guiding core 1.
In order to close and lock the lock immediately, even if in the meantime the discs have been brought into any other relative position, one needs only to bring the member A up to the member B so that the series of coaxial circular apertures 25, 32, 45 and 48 is automatically centred on the guiding core 1. The edges of the said apertures then act on the inclined sides of the teeth I5. I6 and I1 and drive the latch I8 into the interior of the cone I3 as far as the position drawn in dot-dash lines in Fig. 1 whereby the discs and the cap are enabled to slide over the core 1 until the top of the cone 1 touches the extremity 58 of the cap. The teeth are then opposite the grooves corresponding to them and are introduced into these grooves by the action of the spring I4 which slides the latch I8 from right to 1eft (Fig. 1) so as to lock the combination In the second embodiment, shown in Figs. 8 to 13, the lower fiat part B is at all times clamped between a base plate I38 and an external anchor plate I3 I, the plates being held together by rivets 3 and 4. The base plate |30 is fixed by screws 61 to a flange of a guiding core 68 and to a ring v68. The conical guiding core 68 is provided.
over the whole of its height, with an axial slot limited by parallel sides 18, in which is guided the operative part 1I of a sliding latch (Fig. 9). operative part 1I, one edge of which is cut out so as to be provided with two or more locking teeth 12 and 13, is supported by a small base plate 14 which can slide in the interior of the ring 68, between the base |28 of the core 68 and the anchor plate I3I A rounded triangular wireA spring 15 is supported in a circular recess limited by the ring 69. This spring having its extremities engaged in holes 16 in the small base plate 14, urges the latch 1I-14 as shown by the arrow F1 (Figs. 8 and 10) Y The upper part A which the lock is to fasten to the lower one B is clamped, by means of rivets 28 and 22, between afrarne IIB and a lower circular plate 11 provided with an aperture. This frame IIB is provided with a central partition 18 separating two circular cavities 19 and 88 in one of which (19) is placed a triangular stopping spring 8 I, the corners of the triangle being let into notches I35 of the lower rim 82 (Fig. l1). When the lock is closed the spring 8l resiliently engages in a groove 83 of the core 68 to effect the stopping of the frame IIB and the discs on the said core. It is thus possible to keep the lock closed without having to operate the discs or the secret cornbination. n
A narrow groove 84 provided in the cylindrical edge of the cavity 88 partly accommodates an assembling flat circlip 85. The upper annular surface 86 of the frame II8 is provided with letters of the alphabet which are not shown in the drawing but are arranged in the same way as the letters 38 in the first embodiment (Fig. 2), for the combinations which enable the lock to be opened.
A rst annular disc 81 is accommodated in the cavity 88 in such a way as to be able to turn, in the cavity, about an axis RF-R which is common to the two discs 81 and 88. The disc 81 is ThisV shaped. t
Dmvdedawithiza;.acentraktcimulazaapeutunm89k.mi itsawaltlil-.awhiehebeing sete-.bacia theaupp erasur-iaceroi this ldisc forms-.she otiaricavityiinswhiclr.thasecond idisc 88 can-.turner Itisathelsgonlymecessamy toi-bringe thisrsecond disevservingialsosasta can. Thegcylin-i essftogetherf:byfmeansebyatweeze. dricaledge-ofthecavityafcontaimnggtheaseccnai ers'and-tmplace-:thenrn conteo u( 4 im its turnfforined: wlthfvzamarmwigrnoyrei iriiFgs'l-ftaenablezthe; circlipiE-abysbeing come 925.v whining-partly;accommodatesasam assembling-s Dressed to scapesfromzztheigmcvec nndeictheai circlinpi. Theasecondadisc aisissprowidedswit action Ebre-saure: Thesunttzsconsiste.- aiccntral wallen withfi afcentralsapertnre'yazitlitiilwgmthe i88ffisd7hen remoxzedfrbm: enablentheicore: .B 8fto passzt-hrouglm. theafremeatl 8i When..-.the-.lockwisi.irrether; losedf positiomsthe lockingggtoethe'lZ-offthei latclmisaengagedrfreel f f betweem theiwall. lo-ofrthefdiscfm Zand ithe'rcentmis extremitiess walt` tof Lthe secondidisdsandithe secondgtootrtftlsttouoh `.position shewzrzi 1:bis:engagedireelyebetween-this centralewaitibi circlipsI 9'3`irveili be.'enablemtorfescapaGirmi thea and theeextremityfioff:thedisc'rewhich outcivesgmaveae-SZ-sgundexifthe actioneofrranfiax 1.11 f.. The=:f';dscs;f.f'|iaanch88h are-,#separateds tithe notelfrnlillil;casi;I
k1-:groove gsprov-i'ded :onflthe.f11Derileherydei?fthetsy rsmiiscgzcooperateainfaregistaringipcsiticm'withioaL 1.21m mnbinatiomdccmioiningitwofseparable/f theicomplementarygrpo ve Vlift of-.theframeitdm apermredtfiabzpautseasrstpantacarrying1a=firstf portithe.iassemb-lingcirclim5::.. Thee-,seic'ondse` portiere ,sai mbinationzlockcomprising ai cliplg3sfismcconnnodatediin the groove 92 of the hollowesgmdinig hScorersprovided .witlrliia slidingfirst disc and at the same time in a correspondtoothed atch scendi particarrymg... Ysecond-'f ing @me 9.1''provi'dedr-on the.-rperipneryer:the mmm-:tierno ...saida'combmation Ilock''compmisinag@as second disafwl The Vfgrooves: hclidsand 92, 91 supportingefnametfdzlmugii whichisaictircoreuexe' have a rectangular cross section and are parallel., tendsfmnh-.emiwhichiarexstabkedccaxial fr to the'wall 98 of the first dislc`8'1i The lowerface" liksizdiscsishaeiriaextemaltmarks Vfoin-l ause'creti ofthi's wailili isapplied'by theed'geof itsci'rcul'ar combinationf; andfeagra'dialinneie sie wherebyi. aperture"89;on"'the annulafseating IlllfoiltlieA Sdfiathe'sieidiscsiare separatelyiirotatableandcooperate-= corHB 8 so thatthe discs' 1J "aniif'V areihldllri' Wiiihiithcfiteietl'rroietleiilatohtlthe fol'lolwinglstri-1c-1Ar parallelrelationshipto'the baseplate 1'4if:.1th tulemmhiiiglfsuppllgllmmfef'fflteiied'1 latch". Thecircular'apertures'g and 95"i`n` the' to said first flat Dart and shaped to form a rerotary discs are provided with radial notches 89 cess limited by a Hai? bOtiOm parallel t0 the rSt and 95 respectively which are a little wider than 36 flat part and by peripheral walls; said guiding the teeth 12 and 13 of thelatch. core being of substantially conical shape and ' I'he discs 81 and 88 are each marked on their being fastened to said supporting members, said outer surfaces, towards the periphery, at 81 and core having a lower face opposite and parallel 88 with a radial adjustment line which is not to the flat bottom of said recess and a radial shown but which is equivalent to the lines 60 and 40 straight-lined slot, said latch comprising a plate 6| of Fig. 2. Each of these lines in succession having a plurality of aligned saw-type teeth pohas to be made to coincide with the radius passsitioned and guided in said radial slot and a ing through the corresponding letter of the secret base-plate (14) resting on the at bottom of combination. In order to open the lock the said recess, said base-plate being held in said notches 89' and 95 are brought into alignment 45 recess by the lower face of said core, spring with the slot 1i) containing the latch, by pressing means yieldingly applied on the peripheral walls with the fingers on the milled parts 81' and 88' of said recess and on said base-plate to urge the so as to point the adjustment lines towards the teeth of the latch outwardly of said radial slot letters of the secret combination. With the exinto locking engagement with said washer like ception of the number of letters, the operation of 60 dises.
this lock is the same as that 'of the iirst embodi- 2. In a combination lock joining two separable, ment described. apertured flat parts, a first part carrying a first The central partition 18 is provided with an portion of said combination lock comprising a arch-shaped window 98 for lateral access tothe hollow guiding core provided with a sliding circlip 85 and the wall 98 is provided with an 55 toothed latch, a second part carrying a second arch-shaped window 99 for access to the second portion of Isaid combination lock comprising a circlip 93. In a certain position the window 98 centrally apertured supporting frame (l |8) communicates with a notch |08 in the lower through which said core extends and on which edge of the disc 81, and the window 99 communiare stacked coaxial washer like discs having eX- cates with a notch IUI in the second disc when 60 ternal marks for a secret combination and radial this latter is in a certain position. The extremiinner slot, whereby these discs are separately ties of the circlip 85 are bent back inwardly as at rotatable and cooperate with the teeth of the 85' (Figs. 12 and 13) and those of the circlip 93 latch, the following structure comprising: supare likewise bent at 93'. porting members fastened to said rst fiat part The circlips 85 and 93 when free have maxi- 88 and shaped to form a recess limited by a fiat mum diameters slightly greater than those of bottom parallel to the first flat part and by pethe respective grooves 84 and 92 of the frame and ripheral walls; said guiding core being of subof the rst disc, and as a result the said circlips stantially conical shape and being fastened to bear resiliently against the bottoms of these said supporting members, said core comprising grooves. Y 70 a lower plane face (|20) parallel to said flat To disassemble the unit consisting of the discsbottom, an external shoulder or annular seating 81 and 88, from the frame ||8 after the lower (|40) in parallelism with said lower plane face plate 11 has been removed, the disc 81 is turned and a straight lined radial slot (18), said latch until the window 98 and the notch |00 are facmember consisting of a base-plate (14) slidinging one to the other. When the lockwas be- 76 ly arranged in said recess in said supporting members and of a plate-shaped working part positioned and guided in said radial slot and being provided with two teeth the sides thereof being parallel to said base-plate (714), while the tops of said teeth are inclined; spring means yieldingly applied on the peripheral walls of said recess and on said base-plate to urge the teeth of the latch outwardly of said radial slot into locking engagement with said washer like discs, said centrally apertured frame being provided around its central aperture, with a cylindrical Vrecess (80) having a at bottom parallel to said base-plate of the core, in the locked position, 4the lateral wall of saidy recess being provided with a cylindrical, rectangular sectional groove; said coaxial washer like discs including a rst combination disc rotatably tted in said'cylindrical recess and provided at its periphery, with a rectangular sectional groove registering with said groove in said frame, said rst combination disc comprising an upper cylindrical recess having a lateral wall provided with a rectangular sectional groove, and a flat apertured bottomv the underface of which is applied on said annular seating (140) of said core; said coaxial Washer like discs also including a second combination disc rotatably fitted in said cylindrical recess of said first combination disc and being provided with an external groove, rectangular in section and registering with said groove of the cylindrical recess of said first combination disc; a rst split washer engaged in said both registertion disc; and a second split Washer engaged in the said registering grooves provided in the upper recess of said rst combination disc and in the periphery of said second combination disc, said rst and second split washers having their extremities bent back, said grooves in said first and second combination discs being parallel to said annular seating of said core, said first and second combination dises being laterally notched ([00, HH) in such a manner that the notches communicate with the peripheral grooves therein, said bent extremities of the split Washers extending into lsaid notches, the sizes of said notches being greater than the spacing of said bent extremities of the split washers in their expanded position in said grooves. whereby the outer diameter of said Washer in a compressed state. through contacting their extremities is smaller than the respective outer diameters of first and second combination discs, in order to allow the disassembling of the latter by an axial shifting.
AUGUSTE SCHNEGG.
`References Cited in the le of this patent UNITED STATES PATENTS Number Name Date 659,045 Amess Oct. 2, 1900 813,992 Wachter et al. Feb. 27, 1906 1,320,806 Sumgail Nov. 4, 1919 31,482,515 Hainline Feb, 5, 1924 1,513,721 Wilson Oct. 28, 1924
US197530A 1950-07-19 1950-11-25 Combination lock Expired - Lifetime US2668433A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US659045A (en) * 1900-02-26 1900-10-02 Agness Amess Permutation-padlock.
US813992A (en) * 1904-10-29 1906-02-27 Francis E Richards Combination keyless lock.
US1320806A (en) * 1919-11-04 Permutation-lock
US1482515A (en) * 1923-07-09 1924-02-05 Herbert M Hainline Combination lock
US1513721A (en) * 1922-05-31 1924-10-28 Frank A Jonas Combination lock

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1320806A (en) * 1919-11-04 Permutation-lock
US659045A (en) * 1900-02-26 1900-10-02 Agness Amess Permutation-padlock.
US813992A (en) * 1904-10-29 1906-02-27 Francis E Richards Combination keyless lock.
US1513721A (en) * 1922-05-31 1924-10-28 Frank A Jonas Combination lock
US1482515A (en) * 1923-07-09 1924-02-05 Herbert M Hainline Combination lock

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