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Publication numberUS1874 A
Publication typeGrant
Publication dateDec 1, 1840
Publication numberUS 1874 A, US 1874A, US-A-1874, US1874 A, US1874A
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 1874 A
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Description  (OCR text may contain errors)




Specification of Letters Patent No. 1,874, dated December 1, 1840.

To (ZZZ whom t may concern.'

Be it known that I, IViLLIAM Monnnrr wWILLIAMS, a subject of the Queen of Great Britain, now residing, at No. l Bedford Place, Commercial Road, in the hamlet of Mile End, Old Town, in the county of Middlesex, England, late of the Royal Military College, and professor of mathematics, have invented or discovered a new and useful invention of an Improved Lock and Key; and I do hereby declare. that the following is a full and exact description thereof.

My improved lock and key are constructed with peculiar and novel combinations of mechanism intended to supersede the necessity of tumblers as used in most of the patent locks at present known.

This peculiar mechanism I shall describe by reference to the accompanying drawings,`

first in the form of a padlock which is shown at Figure l, the back plate of the lock being removed for the purpose of exhibiting the parts within. The same is also shown at Fig. 2, the internal parts being in a differentposition (viz.), Fig. l represents the bolt shot forward into the staple or bolt hole of the jointed shackle that is locked. Fig. 2 represents the same unlocked; or the bolt withdrawn from the shackle. Fig. 3 is a section taken transversely through the middle of the lock in a vertical direction and Fig. it is the external appearance of the face of the lock, the similar letters referring to the same parts in all these figures. The case or frame of the lock is represented at a, a, the bolt at Z) which is shown detached in two positions at Fig. 5. On the lower edge of the bolt a rack or series of teeth c, is formed. The end or tongue of the bolt is supported and slides in the guide socket Z of th framing and is guided in its sliding action by the screw c passed through a slot in the tail part of the bolt. Fig. 6 represents in four positions (one of them being in perspective) the rack box Vf, which is fastened to the lock plate immediately under the bolt as shown in Figs. l, 2 and 3. It will be perceived by inspecting two of the views shown in Fig. G that a longitudinal groove Z, Z, is cut in the upper part of this rack box in which the rack o on the under side of the bolt is intended to slide. Fig. 7 is a side view of one of the several sliding pieces g of which there are four employed in this lock acting as guards to prevent the bolt being slidden or moved from either its locked 'or unlocked position. These sliding pieces g are to be inserted into the recesses or open parts of the rack box j one of which is shown in the vertical section of the rack box at Fig. 8. Fig. 9 represents the upper edges of these four sliding pieces g g g g in each of which there is a notch m cut at a different distance from their several faces.

Fig. l0 represents a forked spring Zt in two positions. The ends of the forks of this spring when fixed to the lock plate as at Figs. l, 2 and 3 fall into the perpendicular recesses or open parts in the rack box f and severally act against the faces of the sliding pieces g. These sliding pieces have each a tail or elongated part 'Z which is intended to be passed through the face plate of the lock as shown in the transverse section of the lock at Fig. 3. On the face plate of the lock seen in F ig. 4, a socket piece or key guide 'c is affixed wit-li ho-les for the tails z' of the sliding pieces to pass through, their extremities standing flush with the outside of the socket. Fig. 1l represents the key or instrument by which these sliders may be moved for the purpose of locking and unlocking and Fig. l2 is the same, the face plate of the key being removed in lorder to show the parts within. The bolt b is projected forward into the locking position as shown in Fig. l by a lever Z acted upon by a powerful main spring m and the bolt is slidden backward or unlocked as shown in Fig. 2 by a feather spring a; a sliding piece p having an inclined plane (as seen in the detached Fig. 13) being at that tim/e pressed against a tooth g on the side of the lever Z (see also the detached Fig. 14) which by withdrawing the lever Z allows the feather spring a to throw the bolt back. Figs. l5, 1G and i7 are sections taken through the padlock in horizontal directions at the level of the tcp of the rack box f for the purpose of showing different positions of the slidersk y, Fig'. l5 representing their quiescent state when the bolt is projected out-wardcorresponding to Fig. l and Fig. 16 when the sliders are shifted by the key in order to allow the bolt to be slidden back as in Fig. 2.

Now supposing the bolt to be projected, that is, locked as in Fig. l in order to unlock it the key shown at Fig. 12 must be applied to the front of the socket 70. This key is formed by a rectangular box s, s, which contains two series of pins or punches of various lengths fixed in a central block t.

The key bo-x is mounted upon an axis or pivots which enable it to be turned over in its carriage or handle so that either of the series of punches may be applied to the socket (which is a substitute for the keyhole) one of the series of punches as o is for the purpose of interlocking the other w for locking. By referring to Fig. 15 (which represents the sliders in their quiescent state after the bolt has been projected as in Fig. l) it will be perceived that the ends of the tails of the sliders are coincident or flush withl the front of the socket la but that the notches in the several sliders are then at variable distances from the front.

i It will be understood that the rack c at the `underside of the bolt is continually in the groove e' of the rack box 7 (see Fig. 1) and it will be perceived that the several sliders g in the recesses of the rack box at this time stand in the notches between the teeth of the rack c thereby conning and preventing the bolt from being moved along the groove z. In order therefore to unlock, that is to throw back the bolt all the sliders g must be first pushed into such situations as will bring their notches c into exact coincidence with the groove z in the rack box. rI`hisis to be done by applying the key to the face of the lock at the socket cand pressing it straight forward. The several plugs or punches of the key being iixed in the block t at different lengths suited to distances to which the sliders are to be moved, their pressure against the front ends or tails of the sliders will force all the sliders inward and cause their notches a: to be severally brought into coincidence with the groove z as seen in Fig. 16. For the purpose of unlockingor throwing back the bo-lt the part a of the key is to be employed which has five pins or punches; the fifth pin or punch q/ being designed to act against the tail of the sliding piece 7). The key having been thus applied and the sliders g g g g and p all brought into the situations seen at Fig. 16 the inclined plane of the slider p by pressing against the bevel tooth q on the lever will cause that lever to be forced back into the position shown in Fi 2 when the notches a: in the sliders g eing all at the same time brought into coincidence with the groove e the rack of the bolt will be set at liberty and the bolt be immediately thrown back by the power of the feather spring a into the unlocked position as Fig. 2. On withdrawing the key the forked spring L acting against the faces of all the sliders they will be passed through the notches of the rack c under the bolt into the situations shown at Fig. 15 by which the bolt will be held firmly in the unlocked position.

In order to proj ect the bolt into the locked position as represented at Fig. 1, the box of the key must be turned over and the series of pins or punches w be now applied to the socket 7u as in Fig. 12 to act against the tails of the sliders g which on being pressed home will push back the sliders'so as to bring all their notches fr into coincidence with the groove 2 of the rack frame as shown in the section at Fig. 17 Awhen the power of the main spring m acting against the lever Z will cause the rack of the bolt to slide freely along the groove and hence the bolt to be projected into the locked position seen at Fig. 1. The withdrawing of the key will aga-in allow the forked spring L to force all the sliders g forward through the rack of the bolt into the situations shown in Fig. 15 when the bolt as before will remain securely held in the locked position. I would here observe that though I have shown in the drawing and described a rack of teeth c at the under side of the bolt I do not intend to confine myself to that partielllar form of rack as a similar object might be obtained by inserting pins in place of the teeth in the under part of the bolt or a series of perforations might be made in a rib under the bolt as shown in the auxiliary Fig. in .which case it would be necessary to make the sliders g in the form shown in the auxiliary Fig. 7* the Operation being as before described to push back the sliders into such positions as will bring their notches into exact coincidence with the rib or rack c when the bolt will be released and enabled to slide freely. It may further be proper to state that I do not intend to confine myself to the use of four sliders g as any other less or greater number of sliders might answer provided sufficient security is obtained or the mechanism be not made cumbrous by their multiplication. Neither is it necessary that the key be fur nished with two series of pins e and w as one series might be made to move the sliders both for locking and unlocking if the pin jz/ applied to the slider 7J be held by a spring catch and be made capable of receding from the tail of the slider 79 when the bolt is to be projected into the locked position. The bolt also may be moved to and fro by an external button or thumb piece without employing the main spring and driver or the feather spring. As however the same principle of construction is susceptible of some modifications both in form and arrangement I have represented in the accompanying dra-wing at Fig. 18 a lock for a door in which my novel principle of construction is modified to suit a rotary key. Fig. 19 represents the lock in horizontal section and Fig. 2() the lock as Fig. 18 but from which the bolt has been removed in order to show the parts behind more distinctly. rlhe reverse side of the bolt is represented detached at Fig. 21.

Instead of the square rack box represented -box as seen at Fig. 22.

Fig.v 24: is thefreverse or back end of the cylindrical'rack boxythelend plate shown at Fig; 25 being removed. Fig. 26 represents the cylindrical rackbox'- (as Fig. 22) cut-through in vertical sectionl for the purpose of exhibiting the internal forms Qf its passages and recesses and-the situationsof the sliders and springswithin. one of the sliders g detached vof which there.

are four employed as substitutes`V forl thesliders shown before at Fig. 7 a-nd'Fig. 20 is one of the spiral fspringsl1. forffpressingup the sliders of which there are four linstead of the forked spring shown at Fig.V 10 each acting-in one of the recesses of the cylinder against the end of one of the sliders as seen in Fig. 26. On the face of the bolt of this lock see Figs. 10 and 19 a plate g is fixed in which a T formed opening is cut for the studs r and s in the plate attached to the end of the cylindrical rack box (see Figs. 22 and 25) to act in. By means of these studs working in the T formed opening a rotary movement given to the rack box by the key causes the bolt to be slidden to and fro. In the reverse side of the bolt another opening is cut having a double rack c, o, c, c, shown in Fig. 21 which rack answers to that marked c under the bolt Z in Figs. 1, 2 and 5 and acts in the circular groove z z around the middle of the cylindrical rack box (see Fig. 22). This cylindrical rack box is attached to the lock plate by means of two pieces of thin plate t, t, shown in Fig. 2O the circular edges of which take into a circular groove Q2, v formed around the rack Vhen these thin plates t t are fastened to the lock plate the rack box is securely attached to the lock as seen in Fig. 2O but is capable of being turned aro-und freely. I

The parts of the lock being put together as shownin Figs. 18 and 19 and the rack c, C, of the bolt being in the groove e, .e of the rack box, the bolt will be prevented from moving by the slides g, g in the rack box lying in the notches between the teeth of the rack c, c, as seen in the auxiliary section of the bolt with the rack o, c and of the rack box f, Fig. 31. It will now be perceived that by pressing the end of the key Figs. 29 and 30 against the outer end of the cylindrical rack box seen at Figs. 19, 22, 23 and 26 that the pins or punches in the key will act against the tail of the sliders g Fig. 27` is- (see- Fig. 26) forcing them back against the springs, until their notches :v m are brought into coincidence with the groove e in the cylindrical rack box. The groove e will then be completely open all around andthe racks c, c, ofthe y.bolt will be enabled to pass through without obstruction. The key being then turned around the bolt willbe projected forward into the locked position or'backward into the unlocked position, and on withdrawing the key the spring will forcey all the sliders outward again as at Figs.. 26 and 31 and cause them t0 remain between thel teeth of the rack 0, c, so as to confine the bolt in the locked or unlocked position in which it was left.

Another modification of the principlesof my improved lock adapted to the cock or tap of a cask or other vessel for containing liquors` is represented in the following ligures. Fig. 32 is an ordinary liquor cockwith the locking apparatus attached lto it. Fig.- 33 a vertical section of the same. Fig. 34 is a horizont-al view of the cock, the plug being withdrawn in order to show the locking apparatus and Fig. 35 the under part of the capv plate at the top of the plugthis cap plate a is circular, covering a cylindrical box Z) which contains the mechanism of the lock and at the back is a socket la to which the key shown in two views at Figs. 36 and 37 is to be applied. A rack box f shown detached at Fig. 38 is formed with passages at Figs. 6 for the reception of a series of sliders g, g, one of which is represented detached in two views at Fig. 39. These sliders are placed in the rack box as represented at Fig. 34 their tails passing through the socket 7c and behind each slider there is a spring keeping them steadily and up to their proper bearings. In each slider there is a notch w and in the rack box a groove e, as before described and the key furnished with pins or punches being applied to the socket le presses all the sliders into such situation as will bring all the notches m into coincidence with the groove e in the rack box.

The under part of the cap plate, Fig. 35, has a circular rib or bead, part of which is cut into teeth forming the racks c, c. This rib when the cap plate is put on as shown in the section Fig. 33 acts in the groove z in the rack box and when the plug of the cock stands either in the open or elo-sed position the sliders g in the rack box will lie between the teeth of the rack c and thereby prevent the plug from being turned around but on applying the key to the socket and forcing the sliders back so that their notches shall coincide with the groove e the plug may be turned around and the way for the flow ofV the liquor opened or closed in which situation the cock will become locked by the return of the sliders the plug being prevented from turning until it is released by the application of the key.

Having thus fully described the nature of my improvement, and exemplified the manner in which the principle upon Which I proceed may be so varied as to adapt it to door, or other, locks, what I claim there in, and desire to secure by Letters Patent, 1s

l. The manner in which I have combined the rack on the bolt, the rack box, the sliding pieces g, and the respective springs, lever, and other parts, so as to be acted upon by means of the key, or instrument for opening and closing the same; the Whole being constructed and operating substantially as herein set forth, in the application thereof to a padlock.

I also claim the application of the same principle, or general manner of construction, as herein exempliiied, in its application to door locks, and to the securing of cocks, or taps, for the drawing of liquids, and also to all other objects and purposes to which it can be applied, While the principle of construction, and manner of operation, remain substantially the saine, producing a like ei feet by analogous means.

In conclusion it Will be perceived that the object of my improved lock is to obtain security against picking, opening, or unfastening which depends on forcing or pushing all the stops or sliders at one and the saine time from the front or outside of the plate in order that the teeth 'or notches in the bo-lt may be released from the stops; for iii' any one of the sliders, should by a Yfalse key or other means be pushed too far 0r not :tar enough to bring their notches into exact coincidence with the rack the bolt must remain immovable.

In Witness whereof I the said VILLTAM MouRn'r'r VILLIAMS have hereunto set my hand and seal this twenty ninth day of August in the year of our Lord one thousand eight hundred and forty.


Witnesses T. W. VVILIAMSON, J. W, lVIoFFA'rT.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US5524462 *Jan 18, 1994Jun 11, 1996Loughlin; Robert W.Two piece shackle padlock
US5845519 *May 15, 1997Dec 8, 1998Loughlin; Robert W.For use with a hasp device
US5865043 *Jul 6, 1998Feb 2, 1999Loughlin; Robert W.For use with a hasp device
US5934113 *Jul 6, 1998Aug 10, 1999Loughlin; Robert W.Security device