US1408771A - Permutation padlock - Google Patents

Description

PERIVIUTATION PADLOCK.

APPLICATION FILED APR.6,1921.

1,408,771. Patented Mar. 7, 1922.

UNITED, s'rA'rEs PATENT orifice rEnMnTATIoN PADnoCK.

Be it known that I, l-lnNRY C), NinnsnN, a citizen of the United States, residingg at Tremonton, `in the county `oli i Boxtel-der, State of Utah, havewinvented certain new and useful mproveme'nts inPerinutation Padlocks; and l `do herebydeclare the fol` lowing to bea full,l clear, and enact de-, script-ion of theinvention,such as.\vill-en able others skilled in the' art 'to ..\vhich `it appertains togniake and use thelisanie. This invention relates :to new and use ful improvements in locks andwparticularly tovopermu-tation padlocks. fOne object of Vthe invention is toiprogvide a permutation lock wherein. vthe tuinblers areso formed that the feel r'and sound, Whether the tumblers are inLlocl; ing or unlocking position, ivill be the saline, thereby preventing the unauthorized ropening of the lock bytapping or trialturns of the tumblers. l Another object is to provide a ypermutation lock wherein there is provideda fre- Inovable cap or cover Vfor the body offthe lock which can only `be turned for removal when the shackle'of thelock is in unlockedand withdrawn position. y .Y

further object .is yto provide va permutation lockoi the padlock type wherein the detent, which holds thewsha'ckle Within the body of the lock, is inaintainedin locking position, and is so constructed and posi, tioned that the shackle may be readily and easily slipped into the body and automatically engaged with the detent, Whether the tuinblers are Vin unlocked orlocledposi? tion. a

Other objects and advantages will` be ap.-4v parent from thefollowing descriptionwvhen taken inconnection with. the accompanying drawing. Y i

In the drawing:

Figure l is aside elevation of a permutation padlock `madein accordance vvitni-the invention. n

Figure `2 is a vfertic'all sectional view through the lock, in locked position.

Figure 3 is a vertical 4sectional View through the lock in unlocked position, the shackle being shown as Withdrawn.

Figure 4: is a horizontal sectional View through the lock, on the line 4 4 of Figure 2, passing in a plane just above the hori- 159e-1QV semaine uae/44. 1 Zonta-l portion of the detent. shackle fleznngthedetent- Figinfeil') is a perspective view oi: the :de-

a perspectiye. vieiv of, one

l1 -on one end, andilanged cap 12 on its i other end, the ,latter .being secu-red to the body lby `nneans ofthe screw stein 1 3 cai` ried by the inner face of `the cap.l Athe inner Atace of the cap, at one side-of the screw stem, is a recess 11h/the purpose of f which Willappearlaterherein,v4 Rotatahly` engaged on thebody are4 the three .tumbler rings v15, each having on its outerperi-pheral face a series of numbers or letters, with `a'df` jacent .marks adaptedatoregister or align With similar marksv on the flanges `at the ends of@ the tbody, when the proper permutation is made to open the lock. Formedin `the inner .face of 'each ring or tumbler aire the transversegrooves 16,5 and 17, the former being deeper than the latter and beingfarranged, each opposite. a nuinberj or letteren the periphery of `the ring, While the otherl or shalloyver aggroovesvare disposed interina diate the deepergrooves and lettersornumbers. In Athe .drawings there yare shown three rings,` `but ythis 4number, may be, dn*- creased or diminished as desired. p

l Formed longitudinally through rthe body adjacent one side thereof, `is a circular opening or bore 18,` Whileja shorter circular bore` 19 is `formedadjacent the diametrically oppositesideof the body. The upper end of the longer bore 18v is disposedin registry with thebeforementioned recess `14', formed in the -vlower iace ofV the capiplate, 1.2L Formed transversely through` the body, and communicating atffitsfoppQSite ends with 4the horesl:and 19, is avbore or passage20, in :whichsisdisposed a coilspring 21. :Formedve-rticallyin the side of the body, at onesidepf the borelpisfa longi-` tudinally extendingj recess y22, land fcorainnioat-ing Itn/itlrly-thelower end of this recess, and{extending},itransversely,Lathroughl the body, ina plane at the inner end of the anged head 11, is an angular passage 23, the inner end of said passage communieating with a shorter bore 19, as clearly the body,'this beveled end'ot the leg" 2S will Y seen in the sectional views Figure 2 or V3. Disposed in the vertical recessv and the pas sage 23 is an L-shaped ldetent. 2li,V the hori- Zontalfleg of which has a kbeveled nose 25 which normally enters the bore 19. The vertical leg oi the detent'24 is adapted to enter .certain of thedeeper notches. 16,;when

' ingverticall alignment. One end of the coil the-opposite side of the bore 19.

" in the longerbore 18 of the'body of the lock.

while theilatter or shorter leg is disposed in the shorter bore 19; The inner end of the leg 27 is formed` with a head 29 which is adaptedto engage with'a lug or projection 30, on the lower portion of the detent, whereby to prevent the completey withdrawal of the shackle when in unlocked position, as shown i-n -Figure 3.V The inner end ofl the shorter leg4 28 is formed with a notch 31, which receivesthe nose of the horizontal leg of the detent 2li.V The side of the inner end of the leg 28v is beveled, as shown at 32, and the said horizontal leg of the detent is flexible, whereby, when the shackle is pushed into flex thesaid legof .the de'tent to one side, thereby not causing any sliding movement of the detent toward the grooves of the tumblerV rings. The upper wall of thenotch'l is beveled and rests on the beveled f-facel oit-the 7 nose of the' detent", whereby when'theproper 40y the beveled face of the nose andi-cause the ,deeper notches 16 are in alignment, and an outward pull is exerted on the shackle, the said beveled wall of the notch will ride on detent to slide over'and dispose its vertical leg within the said' aligned notches 16.` Immediately that the shorter leg of the shackle is withdrawn from the body of the lock, the spring 21 returns the detent'into its normal Y locking position, that isV withits nose within the shorten bore, Vready for flexing by the shorter leg'28 of the shackle. As soon as the shorterleg'ofthe shackle passed into the bore 19, to such a distance that the notch 31 is oppositethe nose of the detent, the horirlontalleg of the detent immediately springs over to engage/the nose in the said' notch.

V,By'reasonot` the flexibility ofthe horizon# leg .ofthe detent, the shackle can be pushed into the body of theflock, whether th'eideeper `notches of thetumbler rings are in4 alignmentVV or not,` thus vrendering the proper'engagement of the shacklebythe de-V tent, thus-obvi'ating the'necessity of holding the shackle in position while the tumbler ringsV are rotated'intolocking position. Y

. Attention is also directed to the recess in the removable cap into which theupper end lof the Ylonger leg olf the-shackle engages, when the shackle is in lockedposition. i It will be noted that the cap cannotbe rotated,

for rem'ovahwhile the lock is locked, it being necessary to unlock the device, withdraw the shackle, beforethe cap will befree to rotate. Y f

What is claimed isf' y y 1. Apermutation lock comprising abody having a bore therethrough and asecond bore partly therethrough, a'shackle having a longer leg and ashorter leg-disposed ref spectively inthe first, and second bores .of the body, the shorter leg having a notch, ay spring helddetent engaging in the notchof the shackle, means on the detent :tor en;

gagement with the longer leg yto prevent upon movement of the shackle into unlocked position, andhaving a portion thereof ari ranged to be flexed by the shackle in a di-` rection at right angles to the first movement; K 2. A permutation lock comprisingaibody, a slidable shackle in the bodyj. permutation tumblers on the body, and a detent for releasably holding the shackle within the body andVV preventing complete withdrawal thereof from 'the body, said detent being resiliently held in engagement with the shackleand being arranged to be'moved bodilylwhenfthe shackle is withdrawnfandtobe flexed upon movement of the shackle into the body.

3. A permutation lock comprising a body and a shackle slidably and pivotally engaged inthe body, a. plurality of notched permutation tumbler rings rotatable on the body, and an L-shaped detent mountedin the body and normally spring pressed into engagement with the shackle, sai d detent having its horizontal portion arranged to be engaged by the said shackle and to be moved bodily intoaligning notchesolfthe tumbler rings, and to have itsho'rizontal portioneied' in a plane at rightl angles to the'bodily movement by the shackle upon inward movement ofthe shackle. Y

In testimony whereof. mysignature. in the presence of two witnesses.`

i l HENRY oNiELsnn Witnesses;Y Y y y RAY'E. VYATT, Y

` GnAs.` MCCLRE, l i"

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