US1127447A - Permutation-lock. - Google Patents

Description

J. P. JONES.

PERMUTA'IION LOCK.

APPLICATION FILED APILG, 1914.

1,127,447. Patented Feb. 9, 1915.

3 SHEETS-SHEET 1.

J. P. JONES.

PERMUTATION LOOK.

APPLICATION FILED APR. 6, 1914.

l 12?,4%?, Patented Feb. 9, 1915.

3 SHEETSSHEET 2.

gl 25 M 23 5? Elwuemtoz J. P J o N E s qw vhwooao THE NORRIS Pt; TERS C0,. PHOT0-LITHO., wAsH/Nr-n'w n c,

J. P. JONES.

PBRMUTATION LOCK.

APPLICATION FILED APILG, 1914.

Patented Feb. 9, 1915.

3 SHEETS-SHEET 3.

8 nuem co'o JPJoNEs l vbtmuoow CO.. PHOTO-LITHU.. WASHINGTON, D Cv HF NORRIS anion.

JEFFERSON P. JONES, OF JONESVILLE, MICHIGAN, ASSIGNOR OF ONE-HALF TO GARRETT WALCOTT. OF J'ONESVILLE, MICHIGAN.

PERMUTATION-LOCK.

Application filed April 6, 1914.

To all whom it may concern Be it known that I, Jnrrnnson P. JONES, a citizen of the United States, residingat Joncsville, in the county of Hillsdale and State of Michigan, have invented certain new and useful Improvements in Permutation-Locks, of which the following is a speci tic-ation, reference being had to the accompanying drawings.

This invention relates to new and useful improvements in looks, and more particularly to permutation locks for safe doors, or the like.

The main object of my invention is to provide an improved construction of lock of this character,-to increase the durability and efliciency of such lock, and provide means for preventing the finding of the combination by the sound of the notches in the tumblers engaging with the head of the locking lever.

lVith these and other objects in view, my invention consists in the novel construction, combination and arrangement of parts to he hereinafter more fully described, claimed, and illustrated in the accompanying drawings, in which,

Figure 1 is an inner face view of a safe door showing my lock connected thereto, and the locking bolts in extended position; Fig. 2 is a view similar to Fig. 1 showing the locking bolts withdrawn; Fig. 3 is a section on the line 3.3 of Fig. 1; Fig. 4; is a plan view of the main locking lever and the cam plate for operating the same; Fig. 5 is a fragmentary section showing the compound lever and operating cam plate mounted on.- the operating spindle; Fig. 6 is a perspective View of the compound lever; Fig. 7 is a side elevation of the automatic locking plate; Fig. 8 is a fragmentary elevation of the outer face of the door showing the positions of the operating handle and the dial knob; Fig. 9 is an elevation of one of the locking bars.

Referring more particularly to the drawings, the numeral 1 designates the door of the safe or the like, the inner side of the door being provided with a chamber 2 in which the locking mechanism to be herein after described, is located. This chamber is preferably closed by an inner plate 3 which is secured to the walls of the chamber in any desired manner. Slidably connected to the inner face of the door adjacent its Specification of Letters Patent.

Patented Feb. 9, 1915. Serial No. 829,972. v

outer edge is a rectangular frame a, the vertical bars of the frame being connected intermediate of their ends by a cross bar 5, which pro ects beyond the outer edge of the frame, the projecting portion forming a locking bolt 6. The end bars 7 of the frame and the cross bar 5 are provided with longitudinal slots 8 whereby the frame may be connected to the door by suitable bolts, so that the frame may be allowed to slide in a horizontal plane. The outer ends of the end bars 7 also project beyond the outer longitudinal bar of the frame to form locking bolts 6. The spindle 9 is rotatably mounted in the door, the outer end of the spindle having a suitable operating handle 10, the free end of the spindle projecting through a slot in the cross bar 5. The spindle 9 adjacent the handle thereof is angular as at 11 for engagement in an angular opening in a cam plate 12, that portion of the spindle eXtending from the angular portion 11 thereof being reduced as at 13, the reduced portion 13 of the spindle being also angular adjacent the angular portion 11 for engagement in an angular opening in a compound lever 14:, the free extremity of the spindle being threaded.

The cam plate 12 is disposed between the inner face of the door and the cross bar 5, and the cross bar 5 is provided with an upwardly extending enlargement which is provided with an opening therein. The compound lever is provided with a plurality of laterally extending arms 15 which are pref erably three in number, one of the arms normally extending from the lever, being provided with a depending stud 16 for engagement in the opening in the enlarged portion of the cross bar. Slidably connected to the door on opposite sides of the spindle 9 are vertically disposed bars 17 and 17, the inner edge of each bar being provided intermediate of its ends with a notch 18 to receive the enlarged head 19 of one of the normally horizontally disposed arms 15 of the compound lever. The upper end of the bar 17 extends above the upper end bar 7 of the rectangular frame, and is off-set outwardly to provide a locking bolt 20, and the lower end of the other bar 17 projects below the lower end bar 7 of the rectangular frame and is also off-set outwardly to pro vide a locking bolt at the lower end of the door. A nut is threaded upon the spindle 9 to bear against the compound lever 14 to hold the same upon the angular portion .of the reduced extension, and thereby retain the enlarged heads 19 in the notches 18 of the bars to also retain the stud 16 in the opening in the enlarged portion of the cross bar 5. The upper extremity of the bar 17 and the lower end of the bar 17 are oil-set outwardly as at 21, the offset portion of each bar being provided with a notch for the reception of one end of a lever 22 which is pivotally connected intermediate of its ends to the door. Each of the levers 22 is connected at its opposite end to a slidable locking bolt 23. It will be seen that upon rotation of the spindle 9, the rectangular frame may be moved toward the outer edge of the door, so as to move the locking bolts beyond the edge thereof, owing to the engagement of thestud 16 of the compound lever with the cross bar of the frame. The bar 17 will be moved upwardly and the bar 17 downwardly upon rotation of the spindle by reason of the engagement of the en larged heads of the horizontally extending arms of the lever 14 in the notches in the bar, to project the locking bolts beyond the upper and lower edges of the door. By reason of the engagement of the levers 22 with the bars 17 and 17, the'locking bolts 23 will also be moved beyond the upper and lower edges of the door simultaneously with the movement of the locking bolts 6 and 20, Pivotally connected intermediate of its ends ;to the door above the cross bar 5, is the horizontally disposed main locking lever 24,

the outer end of the locking lever being formed with a downwardly extending lug 24 which is disposed in the path of the cam plate 12, so that upon rotation of the spindle, the cam plate engages the locking lever to oscillate the same. The upper edge of the cross bar 5 is provided with a recess 5 which receives the lug 24 of the locking lever when the locking bolts 6 of the frame are in locked position, so that inward movement of the rectangular frame is prevented until the lug is removedfrom engagement in the recess, as will become more fully apparent as the description proceeds. The inner extremity of the locking lever is provided with a laterally extending head 25, the purpose of which will be hereinafter more fully described.

Mounted in the door below the head 25 of the locking lever 24, is a spindle 26, the outer end thereof being enlarged for engagement in the bore 27 of an operating knob 28. The enlarged end of the spindle is provided with a laterally projecting stud 29 for engagement in a recess in the bore of the knob, the bore of the knob adjacent its outer end being reduced to form a shoulder 30 to limit the inward movement of the knob on the spindle. The outer end of the spindle has a threaded recess formed there in which registers with the reduced portion of the bore 27 of the knob, whereby a bolt 31 may be passed through the reduced portion of the bore into threaded engagement in the recess in the spindle, to detachably connect the knob and spindle together. The knob 28 is graduated on its periphery, and the pair of indicating pins 32 project from the door, to provide starting points for opening the combination lock, as will be hereinafter more fully described. Connected to the inner face of the door and surrounding the spindle 26 is a sleeve 33, and rotatably mounted on the sleeve are a plurality of tumbler disks 34, the disks being separated by the separating rings 35. Projecting inwardly from the door on diametrically opposite sides of the sleeve are a pair of guide bolts 36, each of the rings being provided with a pair of outwardly extending apertured ears 37 for engagement with the guide bolts, each ear being provided with an outwardly extending collar 38 which is of substantially the same length as the thickness of the tumblerdisk, whereby the plates are spaced apart to prevent friction between the disks when the same are rotated.

The number of tumblers employed is immaterial, but in the accompanying drawings I have shown six tumblers, the innermost tumbler 39 being of special construction to rotate the main tumblers upon rotation of the spindle 26. Each of the tumblers is provided in its periphery with a series of notches 40, andone of the notches in each tumbler must be put in alinement to receive the head of the locking lever when the locking lugs and bolts are to be moved to their open position. All but one of the notches in each disk are closed by screws 41 so that the bolts can only be moved to their open position when each open notch in all of the disks are in alinement. The five disks inwardly of the disk 39 are provided with arcuate slots 42, the slots being of various lengths, and the disk 39 is formed with a plurality of openings 43, one of which is adapted to receive a laterally projecting pin 44, the pin being of a length to extend through the arcuate slots 42 in the tumblers 34, to rotate the tumblers 34 upon rotation of the tumbler 39. The pin44 also projects a short distance outwardly of the tumbler 39, and a plate 45 having a radially extending lug 46 is mounted on the squared por tion of the spindle 26 which projects beyond the sleeve 33, so that upon rotation of the spindle 26 the plate is also rotated, whereby the lug 46 thereof engages the pin 44 to rotate the tumbler 39 which in turn rotates the tumblers 34 by reason of the engagement of the pin 44 with the ends of the arcuate slots in the tumbler. A nut is try-Wif threaded upon the inner -extremity of the spindle 26 tomaintain the plate 45 in engagement with the squared portion of the spindle so that the plate will be rotated thereby. The separating rings 35 are formed in their peripheries below the inner end of the locking lever 2% with notches 47, the notches being of substantially the same width as the notches 40 in the tumblers so that when the same are in alinement the head of the locking lever may be entered therein. The outer edge of each of the rings 35 is also provided with a notch 4:8, the notches 4:8 registering, to receive a portion of an automatic locking device 4&9, which is designed to operate in the event that the locking lever 2-1 is broken. V

The automatic locking member 4.9 comprises a vertically disposed plate which is ofi set intermediate of its ends as at 50, the opposite ends of the plate being engaged against the inner face of the door. The offset portion of the plate is provided with. a longitudinal slot 51 therein. which re ceives a guide pin 52 which projects from the door, whereby the plate is adapted for vertical reciprocation. The inner end of the locking lever 24 is disposed above the lower end of the plate 49, the lever being adapted to hold the plate in its raised position, by reason of the engagement of the lever with the shoulder formed by oil-'- setting the intermediate portion of the plate. The lower extremity of the plate 49 is provided with oppositely extending arms 5% and 55, the arm 5% extending from the inner edge of the plate being relatively longer than the arm which extends from the outer edge thereof, the arm 54% being bent backwardly to form a head for engagement in the alined notches 47 in the rings 35 as will be hereinafter more fully described. The relatively short arm 55 is also bent upwardly to form a stop, and should the inner end or" the locking lever become broken, it will be seen that the locking member 49 will gravitate downwardly, so that the stop arm 55 will be disposed against the inner end of the cross bar 5, and the head 54: engages the peripheries of the tumbler disks 34. In this manner, the rectangular frame & is prevented from being moved inwardly to withdraw the looking bolts, and thereby prevent the opening of the door when the main lever is broken. The inner edge of the member 49 is provided with an enlarged portion 56 intermediate of the ends thereof, the member being normally prevented from swinging by reason of the engagement of the enlarged portion with a stop pin 57 which projects "from the door. The enlarged portion 56 is formed with a recess 58 adjacent its upper end which is disposed in horizontal alinement with the pin 57 when the locking memberis in its lowermost position, so that the member may be swung inwardly when the open notches of the tumblers are regis tered with the notches 4-7 in the rings, to allow the locking bolts to be withdrawn. in abutment 59 is secured to the door below the member 49 to limit the downward movement of the same when the lever 2a is broken.

In the operation of my improved lock, presuming that the door is looked in its closed position and it is desired to open the same, the spindle 26 is rotated in the proper direction to bring the open notch of one of the tumbler disks in alinement with the notches 47in the rings, whereupon the spindie is rotated in the opposite direction to bring the notch of the succeeding tumbler in alinement with the notches 47 and so on until the open notch in all of the disks aline with the notche 47. When the open notches in the tumblers and the notches 47 are in alinement, the spindle 9 may be rotated to oscillate the lever by reason of the engagement of the cam plate 12 with the lug 24 on the other end of the lever, and to move the head 25 of the lever into the alined notches. It will be seen that when the lug 24 is moved out of the notch 5 in the cross bar, the rectangular frame is moved inwardly and the bars 17 and 17 are withdrawn by reason of the engagement of the compound lever 14 with the bars and the cross barv of the rectangular frame, to withdraw the locking bolts of the rectangular frame and the bars simultaneously with the oscillation of the locking lever so that the door may be opened. It will be seen from the drawings, that the levers 22 will also be oscil lated upon rotation of the spindle 26, by reason of the engagement of their inner ends with the bars 17 and 17 towithdraw the locking bolts 23 which are connected to the outer ends of the levers 22.

It will be seen from the drawings, that the heads of the screws 41 which close the notches or recesses 40 in the peripheries of the disks, project beyond the peripheries thereof, so that if the spindle 26 is rotated slightly to force the head 25 of the locking lever against the peripheries of the tumblers, the tumblers will be prevented from rotating upon rotation of the spindle 9 by reason of the engagement of the projecting heads of the screws with the head of the lever, so that opening of the combination by the sound of the walls of the open notches engaging with the head 25 is prevented. The combination may be changed in several different ways, one of which being to change the arrangement of the screws 41 in the notches 4C0, so that the open notches of the tumblers are changed to different points on the peripheries of the disks, so that the spindle 9 must be rotated in reverse directions different distances to aline the open notches with the notches 47 in the rings. Another manner of changing the combination, is to remove the pin 44 from the opening 43 in the tumbler 39, and passing the pin through another opening in the tumbler so that the distance which the pin 44 must travel to rotate the ends of the several slots 42 is regulated. Still another manner of changing the combination is to remove the plate 45 from the angular portion of the spindle 9, so that the plate may be rotated with relation to the spindle and again connected thereto.

To change the combination of the lock without opening the door of the safe, the knob 28 may be removed from the angular end 27 of the spindle 26, so that the same may be turned and again connected to the spindle. The operation of the automatic locking member 49 is as follows: Presuming that the locking lever 24 hasbeen broken by a person boring through the door, the inner end of the locking lever drops downwardly so that the same is removed from engagement with the off-set portion 50 of the locking plate, thereby allowing the looking plate to drop down until the lower end thereof engages the abutment 59, so that the laterally extending arm 54 and arm 55 are disposed between the inner end of the rectangular frame and the peripheries of the tumbler disks. In this position, inward movement of the rectangular frame to withdraw the locking bolts is prevented; but the safe may still be opened by the pro-per persons who know the combination of the look, by reckoning the combination from a point 45 from the usual reckoning point thereof. WVhen the open notches of the disks have been disposed in registration with the notches 48 in the spacing rings, the operating handle 10 may be rotated to move the rectangular frame 4 inwardly to withdraw the locking bolts, the head 54 of the locking plate being forced into the registering notches in the rings and disks owing to the engagement of the arm 55 with the end of the bar 5 of the rectangular frame. If desired, the outer end of the locking lever 24 may be provided with a suitable weight to immediately force the outer end of the lever downwardly upon disengagement of the cam plate 12 therefrom, to remove the head 25 of the lever from the notches in the disks. To limit the upward movement of the inner end of the locking lever, a pin 61 having a laterally extending extremity may be mounted in the door, the outer face of the lever having a loop or staple 62 connected thereto to receive the laterally extending end of the pin.

Mounted on the inner end of the spindle 9 is a cover plate 63 which is adapted to cover the compound lever 14 and hold the same in position, the cover plate being secured in position upon the spindle by a bar 64 which is secured at its opposite ends to blocks 65 which are secured to the inner face of the door above and below the central bar 5, of the rectangular frame. The bar 64 is provided with a central opening to receive the inner end of the spindle 9, and the inner extremity of the spindle is threaded for the reception of a nut 66, the nut bearing against the bar 64 to hold the spindle in position within the door. If desired, the knob 28, mounted on the outer end of the spindle 26, may be removed so that only the person who has possession of the knob may operate the lock to open the door.

Having thus fully described the invention,

what I claim and desire to secure by Letters.

Patent is:

1.. A. combination lock comprising a support, a spindle rotatably mounted in the support, a locking lever having a head on one end thereof pivotally connected to the support adjacent the spindle, a plurality of tumbler disks rotatably mounted upon the spindle, each of said disks having a plurality of notches in its periphery, screws threaded in all but one of the notches in each disk to close the same, whereby to prevent entrance of the head of said lever in. said closed notches, and means connected to the spindle for rotating the disks to aline the open notches therein.

2. A combination lock comprising a support, a spindle rotatably mounted in said support, a plurality of tumbler disks rotatably mounted on said spindle, each of said disks having a, plurality of notches formed in its periphery, screws threaded in all but one of the notches in each disk to close the same, the heads of said screws projecting outwardly of the periphery of said disks, and means connected to the spindle for rotating the disks to aline the open notches therein.

3. A combination lock comprising a support, a rotary spindle projecting through the support, a plurality of tumbler disks r0- tatably mounted upon one end of said spindle, each of said disks having a plurality peripheral notches formed therein, screws mounted in all but one of said recesses to close the same, the heads of said screws projecting outwardly of the periphery of said disks, a locking lever pivotally connected to said support, said locking lever having a head formed thereon at one end for engagement against the peripheries of said disks, means connected to said spindle for successively alining the notches in said disks upon rotation of the spindle, locking bolts slidably connected to said support, and means carried by the support to move the locking bolts and to force the head of the locking lever into the alined notches in said disk, the projecting heads of said screws In testimony whereof I hereunto atiix my signature 1n the presence of two Witnesses.

JEFFERSON P. JONES.

preventing rotation of said disks when the head of said locking lever is engaged against the peripheries of said disks.

4:. A combination lock comprising a plurality of coasting rotary tumbler disks, each of said disks having a plurality of notches in its periphery, means detaohably mounted in all but one of the notches in each disk for closing the same, and means connected Witnesses:

EDWIN G. GiLLnsrm, WM. M. RANSOM.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0.

Images