US845931A - Keyless lock. - Google Patents

Description

No. 845,931. vPATEMED MAR. 5, 19.07.

J. W. DAVENPORT. KEYLBSS LOCK.

APPLICATION FILED SEPT. 19.1906.

l Inl l. I Il N 5.1M" 'IMQ/l THE NoRRls PETERs co., wAsHmcroN, D. c

JOHNV. DAVENPORT, OF RICHMOND, INDIANA.

KEYLESS LOCK.

Speccation of Letters Patent.

Patented `March 5,1907.

Application led September 19, 1906. Serial No.`335,193.

Toa/ZZ whom it may concern.'

Be `it' known that I, JOHN W. DAVENPORT, a citizen of the United States, residing in the city of Richmond, in the county of Wayne and State of Indiana, have invented a new and useful KeylessLock, of which the followingis a complete and accurate specification.

This invention relates to permutationlocks; and my object is to provide a lock `which is simple in construction and practical in its application and operation, being positive in action, and which can be manufactured and sold at a comparatively low price.

A further object is to provide a keyless lock capable of a wide scope of usefulness andefliciency, adapted to be opened upon .the alinement of certain parts thereof, determinable by .a prearranged combination known only to those authorized, and means whereby the accidental finding of the combination is reduced to a minimum.

Other objects and particular advantages of my invention will appear in the course of the accompanying exposition thereof.

My invention consists in a permutationlook embodying certain new and useful teatures and details ofconstruction and relative disposition of the several parts substantially as described otherwhere in this specification and in the legitimate `combinations herein set forth.

The principles of my invention are herein shown-as applied to a chest-lock; but it is not intended that this invention should be limited to this specific purpose, and in order that the invention may loe more fully understood I will now vtake up the description thereof in concrete detail, in which I will describe the invention and its operation as brieiiy and as comprehensively as I may.

Referring now to the drawings broadly, Figure lshows an outside face view of my lock `in operative position as applied to a chest or the like. big. 2 is a plan introspective view showing the parts in the position when the device is unlocked. I4 ig. 3 is a central horizontal sectional view of my lock as .taken on the line X X of big. 1 and showing the parts in the position when the device is locked. Iig. 4 is a detail view of the assembled disks removed from the body, but retained in their assembled positions. Iig. 5 is a detailvertical sectional view of the coupling members as taken on the line Y Y of 11ig-2. Iigs. 6, 7, and 8 are detail views,

each being of one of the washers for spacing the disks and higs. 9, 10, and 11 are detail views of the several disks.

Similar indices denote likeparts throughout the several views.

Referring now to the invention in detail, the letter A denotes the frontV plate of my lock. The letter B` denotes the back plate. The letter O denotes the base-plate. The letter D denotes the top plate, and the letters E and F denote the two side plates, said parts together forming the case or inclosure tor-the working parts. rl'he front late A, the base-plate U, and the side plates and F are integral-that is, :formed of onepiece-of metaland the front plate A extends out'ait either side beyond the plates E and fF and also down below the plate (l, thereby forming a iange, and in like manner the plate Bextends out beyond the plates. E and 1F the same distance as does the plate A.

"Ihe `numeral ldenotes the main-spindle, which is permanently lixed at its rear endlin the plate B and extends forward to nearthe plate A, but is not attached thereto, and an aperture is formed through the plate A cfa larger diameter and opposite to said spindle.

l'he numeral 2 denotes the master-disk,` which is separated from the plate A by the boss 2, which is of less diameter .thanis the disk 2, said boss being adapted to contact with 'the inner surface'ol' the plate A and Vhaving a stem 2 extending thereirom through and slightly out beyond the .face kof the plate A, it passing through said aperture in the plate A. Said disk, boss, and stem are preferably Jformed integral, as shown. An aperture is formed centrally through the disk 2 and which extends into the boss 2 to receive the otherwise free end of the spindle l, as shown in big. 3.'

The indice 3 denotes a knurled knob secured to the outer portion of the stem 2, said knob being outside the` plate A, .as shown. Extending out, around, and from the knob-3 is a plate 4, which `may be lintegral therewith.

The numeral 5 refers to the circular dial, which is sunk'in the face of the plate A, and around on its outer portionit is dvidcdinto ixty equal spaces numbered .in groups fof ve.

rPhe indice 4 denotes a radial channel on the plate 4, which channel extends from the knob 3 out to the periphery of said plate, as

shown in Fig. 1, whereby the rotation of the knob 3 and the plate 4 will bring the channel 4 in alinement with each of the degreemarks of the dial 5.

The numeral 6 designates the intermediate disk, which is revolubly mounted on the spindle l. Said disk 6 is of same dimensions as the disk 2, from which it is separated by the collar 7. Said collar is also mounted on the spindle l, being secured thereto by a setscrew 8.

The numeral 9 refers to the rear disk, which is revolubly mounted on the spindle 1. Said disk 9 is of same dimensions as the disks 2 and 6, and it is separated from the latter bythe collar 10, which collar is also mounted on the spindle 1, being secured thereto by the set-screw 11. The disk 9 is separated from the plate B bythe collar 12, which collar is also mounted on the spindle 1 and is secured thereto by the set-screw 13.

From the above it will be noticed that the disks 2, 6, and 9 are spaced an equal distance apart and an equal distance from the plates A and B. Each of the disks 2, 6, and9 is provided at one point in its periphery with a square indentation, as the indenof the disk 9 is the pin 20.

tations 14, 15, and 16, respectively.

Extending in an axial direction from the rear face of the disk 2 is the pin 17. Extending in an axial direction from the forward face of the disk 6 is the pin 18, and extending in an axial direction from the rear face of the disk 6 is the pin 19, said pins 1S and 19 being oppositely disposed with reference to each other and also with reference to the central aperture of the disk, and extending in axial direction from theforward face All of said pins are equally distant from the cen ter ofthe spindle 1. Additional apertures a, b, and c are formed in the rear face of the disk 2, to either of which the pin 17 may be moved from the present position in order to change the combination of the lock.

The numeral 21 designates the lockingplate,wl1.ose width is the same as the combined width of the disks 2, 6, and 9, together with the collars 7 and 10, as shown in liig. 2. rlhe thickness of the locking-plate is slightly less than the width of the indentations 14, 15, and 1 6. Three teeth @,f, and g are formed by the left-hand end of said plate 21, said teeth being adapted to ll the respective indentations 14, 15, and 16, as shown in Fig. 2, or to be moved forward out of engagement with said indentations, as shown in big. 3. Extending outward from the sides of the plate 21 and located near the right-hand end thereof are the respective front and rear pivots 2l and 21, which are mounted to slide in an axial direction through apertures therefor in the respective plates A and B. The helical spring 22 encircles the pivot 21, and it is seated at one end against the rear edge of the plate 21 with its other end against the inner face of the plate B, the resiliency of said spring tending at all times to normally retain the plate 21 forward to its limitthat is, to the position shown in Fig. 3. `On the outer end of the pivot 21 is secured the push-button 23, which normally stands out from the face of the plate A, as shown in Fig. 5.

Extending across through the plate 2.1 parallel with the spindle 1 and located near the base of the teeth @,f, and g is an aperture to receive the bar 24, which bar is secured across and to the plates A and B and parallel with the spindle 1 and the pivots 21 and 21. Said bar 24 is simply to support the left-hand portion of the plate 21 and on which bar said plate may slide back and forth. Rigidly secured in the plate 21 and extending upwardly thereabove is the locking member 25, having a tapering head and a horizontal shoulder, as shown in F ig. 5.

The letter G denotes a portion of the front vertical side of a chest or the like, and the letter H denotes a portion of the front edge of the lid, which is adapted to be raised and lowered. Set in and secured in the contact edge of the lid H centrally of and opposite to the lock is the plate 26, (shown in Fig. 1,) and extending downfrom the plate 26 is the locking member 27, similar to but oppositely disposed from rthat of the member 25, an aperture D being formed through the plate D, through which the member 27 may pass to the interior of the lock.

The manner of securing the lock in place is substantially as follows: A notch is cut out of the front G, extending from the upper edge thereof downward the distance to allow the surface of the plate D to be even with the upper edge of the front G, said notch being of lo a length such as to receive the outer faces of the side plates E and F, the thickness of the front G being the same as the distance between the plates A and B. After said notch is formed in the front G the lock may be pressed down into said notch, and the plate D is let in flush with the upper edge of the front G, u here it may be secured by screws, as the screw I, the other screw not being shown. 'lhe lock is further secured in place by four plain head-bolts, (denoted by letters J, K, L, and M.) rlhese bolts pass through apertures therefor in the ianges formed by the outer ends of the members A and B and also through the material of the front G and are supplied with nuts on their rear ends, u hich cannot be removed hen the chest is closed. rlhe position of the plate 26 is such that when the lid H is closed the member 27 will pass through the aperture D and engage the member 25 in the manner shown in l1 ig. 5.

Operation: T he parts being assembled and placed in position in connection with a chest or the like, it will be apparent that if the lid beclosed down, as in Fig. 1, that the locking members will engage with each other, as shown in Fig. 5, and then if the knob 3 be given a few turns to the right it will be ap.-` parent that the plate 21 cannot then be pushed back and that the locking members 25 and 27 cannot then be disengaged until this is donethat is to say, not until the in dentations 14, 15, and 16 are alined with each other and in registering position with the teeth e, f, and g. It should be noticed that as the knob 3 is rotated in either direction that it will carry with it the disk 2, and at a certain point the pintle 17 of the disk 2 will engage the pintle 18 of the disk 6, which will cause the disk 6 to be rotated with the disk 2, and continuing the rotation in the same direction the pin 19 of the disk 6 will l engage the pin 20 of the disk 9, thereby caus ing the disk 9 to be rotated with the disks 2 and 9 but should the knob 3 now be rotated in the opposite direction then the disks 6 and 9 will be left inactive until the disk 2 has completed one revolution, when the disk 6 will be taken up and rotated therewith until the disk 6 has completed one revolution, when the disk 9 will'be taken up and revolved therewith. Desiring now to unlock the chest with the present combination the operations are substantially as follows: rIhe knob 3 is given a few turns to the right in order to gather up all the disks. 'i he knob 3 is now turned to the right until the channel or pointer 4 is alined with the mark eighteen of the dial, as in Fig. 1, which will bring the indentation 16 in registering alinement with the tooth g; but at the same time the indentations 14 and 15 would be out of aline# ment with their respective teeth e andf. Consequently the plate 21 could not be pressed back. 'lhe knob 3 is now turned to the left one complete revolution and then continued in the same direction until the pointer 4 is in alinement with the mark thirty of the dial. rlhis last movement will not have moved the disk 9, but it will have moved the disk 6, whereby the indentation 15 will be in alinement with the tooth f; but now the indentation 14 is not in alinement with the tooth e, and to accomplish this the knob 3 is now turned to the right until the pointer 4 is in alinement with the mark sixty of the dial. Now as the indentations 14, 15, and 16 are all in alinement with each other and with the teeth e, f, and g it is apparent that by pressing in the push-button 23 that the teeth e, f, and g will enter the respective indentations 14, 15, and 16, thus causing the member 25 to be carried to the rear, and therefore out of locking engagement with the member 27, thereby allowing the lid to be raised, and consequently the member 27 withdrawn from the lock'. When the push-button 23 is released, then the spring 22 will return the member 25 to its former locked and normal i position, whereby when the lid is closed the member 27 will automatically engage with the member 25.

Itis apparent that a great many variations in the combination may be made from that above given-as, for instance, by changing the pin 17 to one or the other of the apertures a, b, or c.

It is evident that my lock although very vstrong and durable, positive in action, and

easily attached, yet it can be made very cheaply and also that my lock is practically `noiseless and in opening it no click or other sound is given as a guide to thefunauthorized, and l desire to have 1t understoodthat various changes may be made in the details of my lock in order to adapt it to various uses without departing from the spirit or the principles of this invention.

Having now fully shown and described my invention, what I claim, and desire to secure by Letters Patent of the United States, if-

1. A keyless lock comprising a casing, means for securing the casing in operative position, a permutation mechanism contained in the casing, a knob locatedoutside the casing for operating the permutation mechanism, means for determining the operation of said knob, a locking-plate inside the casing adapted to be either secured or freed by the permutation mechanism, a spring for retaining said locking-plate in normal position, and a push-button located outside the casing for moving said locking-plate out of its normal position after being freed by the permutation mechanism, all substantially as Jhovyln and described and for the purposes set ort TOO

2. A permutation-lock comprising in coming-plate outward and the locking members in engagement with each other, teeth formed on one end of the locking-plate adapted to be moved into and out of said indentations of the disks, means for spacing the disks apart, a knob outside the face of front plate and secured to one of said disks, a plate carrying a marker and secured to said knob and in contact with said dial, and means for bringing the indentations of t-he disks into alinement with each other and with the teeth of the locking-plate by the revolution of said knob, all substantially as shown and described.

3. In a keyless lock, the combination with the case, a locking-plate, means outside the case for sliding the locking-plate in one direction, a spring inside the oase for returning the locking-plate to its normal position, a fixed shaft inside the case, disks mounted on said shaft and each having an indentation in its periphery, collars secured to said shaft for separating said disks, forks extending out from one end of the looking-plate and normally resting between said disks and adapted to enter said indentations of the disks whensaid locking-plate is pressed in against the resiliency of said spring, means for rotating said disks together and for allowing each to make a revolution without actuating the others, and means for changing the relative revolutions of the disks, all substantially as shown and described.

4. A lock comprising a suitable casing, a dial formed on the face of the casing, a knob and pointer operative concentrically over said dial, a movable locking member extending upwardly inside the casing, a relatively permanent locking member extending downwardly into the casing and adapted to interlock with the iirst-named locking member, a horiZontally-slidable plate carrying said upwardly-eXtending locking member, a pushbutton located outside the face of the casing and adapted to move said locking-plate inward, a spring for returning the locking-plate to its normal position when said push-button is released, a shaft operative within the casing and carried with said knob and pointer, a series of disks revolubly mounted on said shaft with one of said disks continuously carried with the shaft, collars secured to said shaft and spacing said disks some distance apart, pins secured in the opposing faces of said disks to provide means whereby the indentations of the disks may be brought into alinement with each other by the rotation of said knob, teeth formed in one end of the locking-plate adapted to be moved into said indentations of the disks when said indentations are in alinement and to rest between the disks when said indentations are out of alinement, all substantially as shown and described.

In testimony whereof I have hereunto signed my name to this specification in the presence of two subscribing witnesses.

JOHN W. DAVENPORT.

Witnesses:

CLARA DAVENPORT, ROBERT W. RANDLE.

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