US1995544A - Keyless padlock - Google Patents

Description

March 26, 1935. w R, LARTER 1,995,544

KEYLEss PADLOCK Filed Aug. l, 1953 4 INVENTOR @www li. gar'c g :ORNEY iatented Marl 26, 1935 "75 I y i UNITED s'mrlazs fr'gTlaziWr fori-*ice l Warren R; Lai-ter, South Orange; N. J., assigner to Latter & Sons, Newark, N. J., a corporation Yof `New Jersey. L

This invention relates to a padlock, and more arm 4 'ofthe latch terminates in a hook and cam' particularly to one of thekeyless type. formationV 7 and 8 .adapted to cooperate with a One of the objects of my invention is to produce notch and vcam formation .9on the' arm 10 of the a padlock havingr a smoothcontinuous surfaceV shackle 11. As will be seen from Figures 2 and i with no vparts projecting or extending from the 5 the .outer surface. of the llatch 4 is nishedto '5,

casing other 'than the shackle whereby the pada contour Vto correspond with the opposite'edge lock may be' Very advantageouslyv used as an l2 of the casing and the interlocking formations: identification lock for use in special cases', for 7, 8 and 9 on the latch and shackle are such that example, where a person has a large number of the afm 4 0f ,the .latch Substantially llsli'fhe i0 similar keys on akey ring, one particularv key that notched. out Opening in the flanges 0f the GesineT 10 is used very frequently may be supplied with one members v1 and 2 so that when `the latch and of these small locks whereby the key can be readily the casing members have been plated and finally picked out in the darkness by merely locating the finished the latch armican hardly be discerned. lock and thereby the key. The latch member has an arm 13 .against which 15 While I have stated above that the lockto b el Spring 14 presses t0 hold the latch in the T101" lf described herein isv especiallyadapted for identimal locking D'OSiiOn 3S indicatedl in Figure 2- cation purposes, there may be other fields of use The spring 14 is held Within the frame meInber where a keyless padlock may be used, for example, 6 in any satisfactciy manner as by den'ing in 2 it may be used to lock'a bracelet on the'wristof 111g l5 0n the flame S0 that'the 111g enters the 2o a wearer and atthe same time act as Aan identificaccnVOluiOnS 0f the Spring 14. The freine IneIn- 2.0 tion device in whichv latter case the name or' ber 6 carries a'socket element 17. .As shown in initials .ofthe owner could be marked or engraved the Sectcn Figure 5,1ilie frame member 6 is formed thereon. It may also be used on dog collars. 0f One Piece connected by a bridge 178 which may My .invention Vwill be '.readilyunderstood by preferably be Yformed Somewhat concave terre.- reference to the a'nnexed drawing wherein Vide a Seal? for the tubular socket member' 17 25 Figure 1 is a, plan View, approximately three which is'anchored in its seatin any satisfactory l times full size, of a lock especially designedas an manner as by solden The. member 17 has 2f 10nidenueatien1oek`,the position of the shackle and eiudinelslct 19 Wthinvwhieh vthe end ef a pin locking latch whenl moved t0 releasing position 20 travels. The pin 20 is mounted transversely in 3o being indicated by d0ttetl1ine5- the end of the arm 16'01" the shackle 11. Near 3o Figure 2 is 'a View Similar 'to Figure l, but with the shackle end, the member 17 has a'transverse one of the casing members removed showing` the S1013 21 htecepuhg the slot 19s@ that Whsh the interior pal-ts of the 1001; shackle arm 16 ismoved outwardly the end of.

Figure 3 is a Side view of Figure 2, but with' the the pin 20 projecting from the arm 16 may enter 35, shackle turned 90 and with the odge poi-tion of the arcuate transverse slot 21 thereby allowing 35 the oosiiig broken awo'y i Y the shackle 11 to be turned as indicated in Figure Figure 4 iS a boi-,tom View of Figure 2 but With 3. To move vthe shackle 11.to openvposition after thoend portion of the Casing removed 'o f it has been released from the interlock forma? i Figure 5 is a section on the line 5 5 of Figure 2,. tlohs 7: 8 and 9 a' spring 22 is provdedahd posi; i 40 and ,t o' 1- t i tioned within the circular socket 17, l 40 Figure 6 isa perspective View of asocket mem- Assuming the Padlhsk to ,he ih locked position ber in which one of the arms of the shackle is as shOWh by the full hues 1h Flguls 1 and 'With positioned y the latch and shackle interlocked as shown f in Referring to the details wherein he numbers Figure 2y to release the shackle 01 uhlock the 45. refer to correspondingV parts in the various views, padlock Pressure is applied t0 the shackle 1.1 t0' '45l the casing is composed of ktwo similar members 1 Ward' the hissing. This forces the Cam surfaces i and. 2 having lnturned anges which. moet along 8 and 9 on the latch and shackle to ride onefon` the line 3; the two parts of the casing are heldV the other, thereby ,forcing the latch AOllilvelclly togetherin any Vsatisfactory manner as by rivets albOlli: as indicated in Figure 1 Wheleby'it vmay 23, two 0f which are indicated, The flanges 0n be engaged and held in this position and when 50 one edge 0f the casing members 1 and 2 are the'pleSSllle iS released -IOIII the shackle 11 the notched out to form anv opening withinwhich is spring 22 will cause it to move so thatthe armV positioned one arm 4 of a latch member which is 10V is moved out of the casing and the shackle can pivoted at 5 to a frame member 6 carried within be turned as indicated in vFigure 3. After the the casing members l and 2. The end of the restraining force is removed from the latch the 55 Having thus described my invention, what I claim is: 1. A padlock including a frame memberfand a` casing having an opening in one edge thereof and holes in one end for the arms 'of a shackle,` a socket member carried lby the frame member, a shackle having its arms extending through said casing holes and one arm longitudinally movable Vin said socket, meansccoperating betweensaid socket and arm to p-ermit the shackle arm therein toiturn in the socket when the 'shackle is in unlocked position, a springpositioned'in'said socket tending to push said shacklearm tothe position Where it maybe rotated, alatch carried by'said frame and having an arm normally lying in said casing opening and substantially nllingthe same,

' the end of said arm terminating inacam and hook, saidshackle having another :arm terminating in a cam and notch for Vthe purpose described, and resilient means carried by the frame member for acting on said latch to hold it in normal locking'position. Y

. 2. A padlock as set forth in claim l further characterized inthat said casing is made ofi two similar parts fastenedtogether and having in-.-

turned flanges which meet along their edges, the flanges on one edge being notched out to form said opening for the latch armand also being cut out on one end to form the holesY for the shacklearms.

'3. A keyless padlock including acasinghaving anopening in one edge and shackle holes in one end thereof, a shackle having arms extending through said holes into the' `casing one arm terminating in a notch having a'cam surface, a frame member within the casing, a latchcarried by the frame member and having an arm. with an outer surface' conforming tothe opposite edge of the casing and lying in and lling the opening flush with the edge .of the casing, said latch arm terminating'in ahook and cam to cooperate. with the notch and cam on the shackle arm whereby pressuretoward the casing on the shackle forces the latch outwardly so it can be released from engagement with theshackle, resilient means carried by the frame member forholding the latch in normal locking position, a socket member vcarried by the frame for receivingk the other arm of the shackle, meanscooperating between the socket and said arm to permit the shackle to be rotated after being released from said latch and a spring positioned in said rsocket, acting to move the shackle arm-therein be rotated. Y 4. A keyless padlockhaving a'casinghand a l shackle having arms extending into the casing,

a latch positionedin one edge wall of the casing and having its outer surface finished to simulate the opposite edge of the casing, said latch and to a position whereitmay.

one of the arms ofthe shackle having cooperat-' ing interlocking formations for normally holding the latch in proper position so its surface and that of the `casing conform, with means within the casingfor normally holding them in interlocking position said latch and one arm also having cam surfaces whereby pressure on the shackle toward the casing willforce said latch outwardlyso. it may be engaged to release the interlock.

5.*A keyless padlock having a casing and a shackle having arms' extending into the casing, a latch positioned in a part of the casing and having its outer surfaces finished to match up with the adjacent parts of the casing, said latch and one of the armsof `the shackle having cooperating interlocking formations for normally holding the .latch in proper position so its surface and that 'ojthe casing conform, with means within the casing for normally holding them in interlocking position saidlatch and one'arm also having cam surfaces whereby pressure on the shackle toward the casing will force said latch outwardly so it `may be engaged to release the interlock.

camcooperating with said latch to release said latchand shackle from interlocking relation by pressure on the interlocked kshackle toward the casingwhereby said latch part is moved so it can bev engaged to prevent its return to interlocking is removed from the cluding a cam on said :member engaged by saidy shackle. Y A l 8. A padlock including a rectangular' casing having a slot in one edge thereof, a shacklemovable inwardly and outwardly of one end ofsaid casing, a right angularly shaped member pivoted between its arms in said casing and having one arm movable in one direction to project outwardly of said slot, saidv member being tensioned Vfor movement of said arm in the opposite direc.-

tion to a slot'closingposition, the other arm of saidmemberbearing against the otherend of said casing to limit movement of the member in said opposite direction, and coengaging latching devices'on said shackle and memberv operatively related by inward movement of said shackleiand rendered Vineffective-by movement of the rst mentioned arm; to projecting position.

. WARREN R.' LARTER.

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