Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS345340 A
Publication typeGrant
Publication dateJul 13, 1886
Publication numberUS 345340 A, US 345340A, US-A-345340, US345340 A, US345340A
InventorsChaeles A. Volke
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 345340 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

(ModeL) G.A.VOL'KE.

I PBRMUTATION PADLOGK. No. 345,340. PatentsdiJuly 13, 1886.

F71 j FZZJ.





SPECIFICATION forming part of Letters Patent No. 345,340, dated July 13, 1886.

Application filed July 23, 1885. Serial No. 172,421. (ModcL) To all whom it may concern:

Be it known that I, OHARLEs A. VoLKE, of Stapleton, in the county of Richmond and State of New York, have invented a new and Improved Perm utation-Padlock, of which the following is a full, clear, and exact description.

My invention relates to the construction of permutation-padlocks; and it consists in certain novel features of construction of the lock mechanism, as will be hereinafter described,

and pointed out in the claims.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a face View of a padlock, showing a portion of the thumb-piece cut away to disclose the pointer. Fig. 2 is a sectional view on line at m, Fig. 1, showing the position of the parts when unlocked. Fig. 3 isaview of the interior of the rear half of the padlockcase. Fig. 4 is a face view of a modified form of locking mechanism, the front plate of the case being removed to disclose the form and arrangement of the parts. Fig. 5 is a sectional view on line 3 y, Fig. 4.

A represents the back plate, and B the faceplate, of apadlock-case. plate,A,are the short posts a a, which are slotted at b b, for a purpose to be hereinafter fully explained.

Referring now to Figs. 1, 2, and 3, wherein I have illustrated my preferred form of construction, it will be seen that the circular bow or shackle O rides between two concentric ridges, c c, that are cast upon the plate, the ridge 0 being centrally cut away at g, to permit the bolt or locking-dog d to pass through it to enter the opening 6 in the shackle O in order to lock the same in position. The bolt cl is made integral with a plate, f, which rests directly upon the plate A, and is arranged to slide up and down thereon, being guided by lugs 'i 'i and the approaching ends of the ridge 0, between which, as before stated, the bolt 02 passes, and also by the ridges or lugs 0 0, that are formed on the upper side of the plate and bear against the under side of a retaining- A plate, It, that reaches over the plate f, and is secured in place by means of the screws kit,

Studded to-the back i which pass through the plate A and engage with the lugs t' i. To the upper edge of the platef, which is twined over to form a shoulder, Z, there is secured a short post, m, which holds one end of a spiral spring, a, theother end of said spring entering a socket, 1), formed in the bolt d, the action of the spring being to force the bolt upward through the opening 9 and into engagements with the shackle C. The plate f has two projecting arms, D D, which carry pins 88, a third pin 5 being attached to the lower side of the plate itself. These pins 8 are all in line with the slots 1;, formed in the posts a, being so arranged for apurpose to be pres ently expained. The face-plate B is formed v with concentric ridges to correspond with the ridgesc c, that are formed on the plate A, as best shown in dotted lines in Fig. 1. The posts a a are each surrounded bya cap, 25, slotted at it, upon which cap there is formed a collar, to. The periphery of this collar u is milledor serrated, and projects through a slot, 2;, formed in the outer-rim of the face-plate B, as seen best in Fig. 2. To the tops of the caps t are secured pointer plates to, connected to the caps by screws a, said pointer-plates be 'ing' formed to fit within openings 1), which are made for their reception in the face-plate B. Around the openings 12 there are arranged a number of marks, which are either numbered or lettered to form the dials to, so thatthepoints 6 of the pointer-plates'w may be brought into register with such of the marks upon faceplate B as will bring the slots and b in register, so that if the plate f should be depressed the pins 8 could enter the slots named,and thus permit the bolt d to be drawn from engagement with the bow or shackle C. To about the center of the plate B there is secured a circular collar, h, provided with a groove,within which there rides a flange, 11, that projects from a thumbpiece, 12, the shank of which passes through the plate B, as shown best in Fig. 2. A square or angular opening is formed in the bottom ofthis thumb-piece,and through this opening the correspondingly formed shank of the key Z passes. Near the lower end of the shank of the key Z there is a lug, m, which is normally held against the under side of the thumb-piece p by a spiral spring, n, arranged as shown in Fig. 2. The plate It is slotted, as shown at q, in order that the key Z may be passed through it to be brought into engagement with the lug 0 on the plate f, so that by turning the thumb-piece p the platef and bolt d may be moved to the position shown in Fig. 2, it of course being understood that this movement of the plate and bolt could not be made unless the slots 1) and k were in register. I must be inserted in the opening q of the slot q, and in order that the key may be turned so as to slip directly into the opening I make a dial, a, on the collar h, and place av point on the base of the thumb-piece p, which is brought into line with such point on the dial a as will bring the key in position to enter this opening q. The plates A and B are riveted together by rivets w w", but before being so united the slots b and k are brought into register, and the parts of the lock moved to the position shown in Figs. 1 and 2. After the plates are riveted together the position of the points upon the dials on the plate B are carefully noted, so that when the parts are sprung and the slots k and b thrown out of register, they can be returned thereto when it is desired to open the lock.

If at any time it is desired to change the original combination, all that is necessary is to loosen the screws a, turn the plates w, and refasten said plates, carefully noting the changed position of the pointer 0 upon. the dial. a

In the construction shown in Figs. 4 and 5 the plate f revolves about a central post, b, that is studded to the casing A, the pins 8 in thi case being carried by radial arms 0'. The shackle O is pivotal] y connected to the case by studs f and the catch-arm is slotted at e to form the tooth k, with which the locking-dog d engages. This dog d is pivotal] y mounted in the case and carries a downwardly-projecting arm, 9, which engages with a lug, h*, on the plate f. A spring, i", that is secured to the case, bears against the arm 9 and tends to elevate the dog d to bring it into engagement with the tooth k. The plate f is normally held against the limit-pin Z by the spring m, while the spring n acts to throw up the catch- In order to depress the plate f, the key be turned on its pivotal point, so that the pins 3 will enter the slots k and b, and this movement of the plate will, through the medium of the stud h, depress the arm 9, and thereby withdraw the dog J from engagement with the tooth it, when the spring n will act to throw the catch-arm of the shackle out of the case.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a permutation-padlock, the combination, with the case and its-bow or shackle, of a plate, f, locking-dog (1, pins 8, slotted posts a, caps t, formed with slots k, and a manipulating device consisting, essentially, of a key, 1', and thumb-piece 12, substantially as described.

2. In a permutation-padlock, the combination of the following elements, viz: case and shackle 0, plate f, carrying dog d, and pins 8, plate h, formed with post m, spring n, slotted posts a, and slotted caps t, substantially as described.

3. In a permutation-lock, the combination of the following elements,viz: case and shackle 0, plate f, carrying dog d and pins 8, plate h, post on and spring n, slotted posts a, caps t, formed with slots is, and a key, I, substantially as described.

4. The combination, with the plate f, locking-dog d, pins 8, and a plate, h, guiding the same, of a thumb-piece, p, provided with a pointer or mark, a key, 1, spring n, and a dial, a, substantially as described.




Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3416337 *Nov 23, 1966Dec 17, 1968Raven Ind IncLocking cover for a coin box
US3436941 *May 29, 1967Apr 8, 1969Mosler Safe CoCombination lock with cam-operated tumblers and sequentially engageable tumbler stops
US3824816 *May 25, 1972Jul 23, 1974Coats & ClarkCombination padlock
US6470717 *May 3, 2001Oct 29, 2002Chun-Te YuDials of a combination padlock
US7415850 *Jul 6, 2005Aug 26, 2008Master Lock Company LlcLock
US7779658 *Oct 24, 2007Aug 24, 2010Matsushita TeruakiLocking device and unauthorized unlocking prevention method
US7913525 *Apr 1, 2008Mar 29, 2011Ma SamPointer padlock
US20060005586 *Jul 6, 2005Jan 12, 2006Cris SmyczekLock
US20080049559 *Oct 24, 2007Feb 28, 2008Matsushita TeruakiLocking device and unauthorized unlocking prevention method
US20090113948 *Apr 1, 2008May 7, 2009Ma SamPointer padlock
Cooperative ClassificationE05B37/025
Legal Events
Jun 30, 2004ASAssignment
Effective date: 20040628