US858111A - Safe-lock. - Google Patents

Description

PATENTED JUNE 25, 1907. B. A. SIEGFREID.

v SAFE LOCK. APPLICATION FILED SEPT. 1'7, 1906.

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ENIS A. sIEGFREID, OF LAMAR, COLORADO.

SAFE-LOCK.

Specification of Letters Patent.

Patented June 25, 1907-.

Application filed September 1'7, 1906 $erial No. 334,910.

To all whom it may concern:

Be it known that I, ENIs A. SIEGFREID,a citizen of the United States, residing at Lamar, in the county of Prowers and State of Colorado, have invented certain new and useful Improvements in SafeLocks; and I do declare the following to be a full, clear, and exact description of the invention such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in burglar proof safes and locks therefor.

The object of the invention is to provide a safe having a door in one of its faces and provided with locking means, and operating means for said locking means located on another face of the safe at an angle to that in which the door is hung and having shafts or spindles, the inner ends of which are Opposed to one edge of the door when the latter is closed, whereby it is rendered impossible for burglars to drive the spindles of the lockinto the safe and insert an explosive in the spindle openings for the purpose of blowing out the door, as hereinafter described and claimed.

The above and other objects which will appear as the nature of the invention is better understood, are accomplished by the construction illustrated in the accompanying drawings in which,

Figure 1 is a perspective view of a safe embodying the invention; Fig. 2 is a detail vertical sectional view through a portion of the side wall of the safe upon which the lock and its operating device are located. Fig. 3 is a detail horizontal sectional view through the front portion of the safe showing its two swinging doors and the lock located between the edge of one of them and the adjacent side wall of the safe; Fig. 4 is a vertical sectional view through the lock looking toward its base plate; Fig. 5 is a detail sectional view taken on the plane indicated by the line 55 in Fig. 4; Fig. 6 is a side elevation of the inner face of the outer tumbler disk of the lock; Fig. 7 is a perspective view of the tumbler disk illustrated in Fig. 6 showing the detachable fly mounted upon its inner face; Figs. 8 and 9 are perspective views of the opposite sides of one of the flies; Fig. 10 is a detail perspective view of a sleeve or collar which surrounds the key shaft and which carries the central Fig. 10, to space the tumbler disks apart; Fig. 12 is a detail view of the casing or covering for tumbler disks; Fig. 13 is a detail View of the casing or covering plate for the levers which are controlled by the tumbler disks;

Fig. 1 1 is a detail view of the locking plate which coacts with the tumbler disks; Fig. 15 is a detail sectional view through the side wall of the safe, the combination knob or handle and the key shaft; Fig. 16 is a view of the front end of the key shaft; Fig. 17 is an elevation of the inner side of the right hand door of the safe, a portion of the side wall of the safe and the lock thereon being also shown to illustrate its position with respect to the door; and Fig. 18 is an elevation of the inner side of the left hand door of the safe.

In the present embodiment of the invention the safe is of rectangular form and has the usual opening in its front closed by right and left hand doors 1 and 2. These doors are hinged in the usual manner to swingoutwardly and they are of the usual form and construction, with the exception that they do not carry the usual combination or permutation lock. They are, however, provided around their edges with the usual sliding bolts and carry a suitable mechanism by means of which said bolts are projected and retracted, but the said operating mechanism for the bolts is controlled and actuated by a suitable lock 3 which is located between one of the side walls 4 of the safe and the adj acent edge of one of the doors and has its operating knobs or handles located upon the exterior of the side walls 4;. While the lock 3 and its operating devices upon the side of the safe may be of any suitable form and construction, I preferably employ the one illustrated in the drawing and herein-after described. This lock is also preferably located between one of the walls of the safe and one edge of the door so as to render it practically impossible for burglars to break off the operating knobs or handles, drive the shafts or spindles of the look into the safe, insert dynamite in the spindle openings and thus blow out the door or doors as is frequently done when the lock is located in the door-at the front of the safe. To permit the doors 1 and 2 to be readily opened after their bolts have been released and retracted by properly manipulating the lock operating devices in the side 4 of the safe, a knob or handle 5 is cast upon or otherwise secured to the right hand door 1, as clearly shown in Fig. 1 of the drawings.

In Figs. 17 and 18, I have shown conventionally upon the two doors sliding bolts and operating means therefor, but it will be understood that any other suitable form of mechanism of this character may be employed. The left hand door 2 has mounted within in two sliding rods 6 and 7, the outer ends of which serve as bolts and are adapted to be projected through openings in the top and bottom edges of the door into suitable openings in the safe. The inner ends of the rods 6 and 7 are loosely connected to the ends of a lever 8 pivoted at 9 and adapted to be actuated by hand to retract the locking rods 6 and 7. The rod 7 carries a lug 10 which projects into and slides in a vertical slot 11 formed in the inner edge of the door 2. The slot or opening 11 is of sufficient size to receive a bolt 12 which is adapted to be projected from the inner edge of the door 1 and when in said slot 11 will hold the locking mechanism above described in the door 2, against movement. An opening 1.3 is formed in the upper portion ofthe inner edge of the door 2 and is adapted to receive a sliding bolt 14 carried by the door 1 and similar to the bolt 12. The bolts 12 and 14 are connected by bell-cranks 15 to one of two slidable locking bars 16 mounted in the door 1 and similar in construction and operation to said rods 6 and 7. These bars 16 are loosely connected to the ends of the lever 17 pivoted at 18. One of the bars 16 carries an operating projection or arm 19 which is controlled and actuated by the lock 3, as presently explained. An anti-friction roller 20 is mounted on the arm 19 and is adapted to swing into the notch 21 in an operating lever 22 in the lock 3, when the door 1 is swung to its closed position, as will be readily seen upon reference to Figs. 3, 4 and 17 of the drawings. If desired the outer vertical edges of the doors 1 and 2 may be provided with stationary lugs 23 which enter suitable recesses in the side walls of the safe, as will be seen upon reference to Fig. 3.

The improved lock 3 comprises a rectangular base plate 24 which is secured by screws 25 upon the inner face of the side wall 4 of the safe, as previously explained. This base plate is formed with upper and lower centrally arranged openings to receive a key shaft 26 and a bolt operating shaft 27. These shafts or spindles extend through transverse openings in the side wall 4, as clearly shown in Fig. 2. The lower bolt operating shaft 27 has adjacent to its inner end a rectangular portion upon which is fixed the said lever 22 which has the notch or fork 21 at one of its ends and its opposite end connected by a link 28 to a lever 29 which is pivoted upon a stud 30 projecting through the base plate 24.

The end 31 of the lever 29 operates a slidable looking plate or element 32, the movement of which latter is controlled by a plurality of tumbler disks adapted to be actuated by the key shaft 26. The end 31 of the lever 29 projects into a slot 33 in said plate, said slot having beveled end Walls, as clearly shown in Figs. 4 and 14. The locking plate 32 has its vertical edges projecting into and slidable in vertical slots 35 formed in the base plate 24 and in two casings or coverings 36 and 37, as seen in Fig. 2. The casing 36 surrounds the said tumbler-carrying disks on the key shaft 26 and consists of an outer plate of the form shown in Fig. 12 surrounded by a fixed flange or rim 39 adapted to bear against the base plate 24. Screws, bolts or the like 40 clamp the casing 36 upon said base plate. The casing 37 is right angular in form consisting of two plates 41 and 42, the latter of which bears against the base plate 24. These plates 41 and 42 are of peculiar form, as shown in Fig. 13 and are retained upon the base plate 24 by screws, bolts or-the like 43, so that they cover and protect the parts 22, 28, 29 and 32. The plate 42 is formed with an opening through which the lever 22 projects and with an opening in which the end 31 of the lever 29 swings. The upper ends of the plates 41 and 42 fit the flange or rim 39 which latter is formed with a slot or opening through which the locking plate 32 slides. While any number of the said tumbler disks may be employed on the look, I preferably use three numbered 44, 45, 46. These disks are substantially alike each being circular in form and having scallops 47 around their edges and a substantially radially extending notch 48 in which the locking plate 32 is adapted to enter when the lock 3 is in its unlocked position, the scallops or notches 47 being adapted to engage the upper end of said plate 32 and prevent it from being moved, when the lock is in its locked position. The outer disk 44 is keyed to the key shaft 26, as shown at 49 in Figs. 4, 5, and 6 and the intermediate disk and inner disk 46 are mounted to turn freely on a sleeve or collar 50 which is carried by and projects through the inner face of the plate 38 of the casing 36 and is adapted to receive the inner end of the shaft 26 which latter rotates freely therein.

The sleeve 50 which is shown in Fig. 10, is formed with a longitudinal groove 51 to receive tongues upon washers 52 arranged upon said sleeve between the disks so that they will not rotate each other by reason of frictional engagement. Washers 53 are also provided between the outer disk 54 and the base plate 24 and between the inner disk 46 in the cover plate 38. In both of the faces of the intermediate disk 45 and also in the inner or opposing faces of the disks 44 and 46 are formed radially arranged dove-tail grooves 54 adapted to receive similar shaped projections 55 on flies 56. The latter are in the form of washer plates apertured, as shown at 57 in Figs. 8 and 9 to receive the sleeve and having the projections upon one of their sides or faces and lugs 58 upon their opposite sides or faces. The lugs or tumblers 58 are of such size that those of the opposing faces of each two of said disks will overlap each other so that one will pick up and move the other when the disk upon which it is mounted is rotated in the proper direction and to the necessary extent. In other words the fly upon the outer disk 44 is adapted to, at times, engage and move the fly upon the outer or front face of the disk 45, and the fly upon the inner or rear face of the disk 45 is adapted to, at times, engage and move the fly upon the inner disk 46 so that by rotating the key shaft 26 first in one direction and then in the opposite direction, the notches or openings 48 in said disk may be caused to aline with each other and with the locking plate 32 so that the latter can be projected or moved into said alining notches 48 by turning the bolt operating shaft 27. The flies 56 are detachably mounted upon the said disks by the engagement of the projections 55 with the grooves 54 so that the combination of the lock may be readily changed by inserting said projections in different grooves; These grooves may be numbered or otherwise marked to facilitate V shaft.

the changing of the combination. The bolt operating shaft 27 carries at its outer end an operating knob or handle 60 and the key shaft 26 carries at its outer end an operating knob 61 formed with a circular base flange 62 which rotates within a ring 63 secured upon the outer face of the wall 4 and bearing scores which coact with scores or marks upon the flange 62. The latter forms the usual dial and said marks may be designated by numerals or other characters which in opening the lock 3 must be properly shifted into and out of alinement with the score or scores in the ring 63. i

The manner of connecting the knobs or handles 60 and 61 to their respective shafts is clearly shown in Figs. 15 and 16, and since the connection is the same in both cases, I will describe but one. Each of said shafts has its outer end terminating flush with the outer surface of the side wall 4 and formed with a centrally arranged screw-threaded socket 64, two diametrically opposed sockets 65 and two other diametrically opposed sockets 66. The threaded socket 64 is adapted to receive the threaded end of a screw or bolt 67 which passes through the knob or handle and attaches the same to the This knob or handle is also formed with two integral lugs or projections 68 adapted to enter the sockets 65 to prevent the rotation or slipping of the knob upon the shaft. The sockets 66 are provided to receive projections similar to the projections 48, upon a supplemental knob which is supplied by the manufacturer of the safe and is only used after an attempt to burglarize the safe, in which the original knob is broken from its shaft. I

The operation of the invention is as follows: In looking the safe the left hand door 2 is first swung to its closed position and its locking mechanism actuated by hand to project the bolt rods 6 and 7 as shown in Fig. 18. The right hand door 1 is then swung to its closed position and in so doing, the roller 20 onthe arm 19 of the locking mechanism of said door 1 swings into the forked end 21 of the lever 22, said lever being in the position,

shown in Fig. 4. The knob or handle 60 is then turned to swing the lever 22 so that the bolts in the door 1 will be projected into recesses in the safe and the said recesses 11 and 13 in the door 2, and so that the lever 29 will be swung to slide the locking plate 32 downwardly and disengage it from the notches or recesses 48 .in the tumbler disks. The safe may then be effectively locked by giving the knob or handle 61 a few turns to move the notches 48 in said disk out of alinement. When said notches 48 are unalined, it will be impossible to move the locking plate upwardly a distance sufficient to operate the bolts in door 1, as will be readily understood;

Should any one attempt to pick the lock by turning the knob 61 back and forth and at the same time similarly operating the knob 60, the locking plate 32 will be elevated to a slight extent and moved into the notches or scallops 47 in the edges of said disks, so that they will be prevented from turning. It will, therefore, be impossible to pick the lock. Owing to the fact that the lock is disposed between the wall of the safe and the edge of one of the doors, it will be im ossible for burglars to drive the knob sha 'ts into the safe and insert an explosive to blow the doors out.. WVhen it is desired to unlock the safe, the knob 61 is turned back and forth the proper distances according to the combination, so that the tumblers upon the disks will successively engage each other and partially rotate the disks to cause their notches 48 to aline with each other and with the locking plate 32. Whenthis is done the knob 60 may be turned to simultaneously project the locking plate 32 into said alined notches 48 and shift the arm 19 which controls the operation of the bolts in the door 1. When these bolts are retracted the door 1 may be opened, and the other door 2 may then be opened by operating its locking bolts by hand or in any other suitable manner. As previously eX- plained the combination of the lock may be readily changed by shifting the detachable flies up on their tumbler disks.

While I have shown and described the preferred embodiment of the invention, it will be understood that I do not wish to be limited to the precise showing herein set forth.

Various changes in the form, proportion and the minor details of construction may be resorted to Without departing from theprinciple or sacrificing any of the advantages of this invention, as defined by the appended claims.

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

1. A safe having a door in one of its faces and provided with locking means, and operating means for said locking means located on another face of the safe at an angle to that in which the door is hung and having shafts or spindles, the inner ends of which are opposed to one edge of the door when the latter is closed.

2. A safe having a door in one of its faces and provided With locking means carried thereby and movable independently thereof, operating means for said locking means located on another face of the safe at an angle to that in which the door is hung, and a locking mechanism for said operating means having shafts or spindles, the inner ends of which are opposed to one edge of the door when the latter is closed, and prevented by said closed door from being driven in.

3. A safe having a door in one of its faces and provided with locking means carried thereby and movable independently thereof, operating means for said safe locking means located on another face of the safe at an angle to that in which the door is hung, and a permutation-lock mechanism for said operating means said permutation lock mechanism having shafts or spindles, the inner ends of which are opposed to one edge of the door when the latter is closed.

4. In a safe lock, the combination with a shaft terminating flush with the outer face of the wall of the safe and having a threaded socket and stud receiving sockets, of a knob carrying studs to enter said stud receiving sockets and a screw in said knob to enter said threaded socket.

In testimony whereof I have hereunto set my hand in presence of two subscribing Wit- IIBSSGS.

' ENIS A. SIEGFREID. Witnesses:

CHARLES R. STRAIN, I. E. KErsER.

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