US1343145A - Permutation-lock - Google Patents

Description

M. KOSICH.

PERMUTATION LOCK. APPUcATmN FILED MAY 1. 1919.

Patented June 8, 1920.

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Ill/[ABK KOSICH, 0F NEW YORK, N. Y.

.PERMUTATION-LOCK.

Specification of Letters Patent.

Patented J une 8, 1929.

Application filed May l, 1919. Serial No. 294,028.

T0 all whom z' may concern:

Be it known that I, MARK Iosrcn, a subject of the Montenegrin Goverment, residing at New York in the county of New York and State of ew York, have invented certain new and useful Improvements in Fermutation-Locks; 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.

My invention has for its principal object to provide an extremely simple and inexpensive, yet a highly efficient and durable permutation look designed primarily for use upon suit-cases and trunks, although it is of course applicable for numerous other purposes.

In carrying out the above end, a stem is provided, slidable in a casing and carrying an arm formingV the bolt of the lock, and a plurality of rotary tumblers are mounted in said casing and on said stein for normally locking the latter against movement, a further object of the invention being to provide novel means for confining the tumblers in the casing.

Other objects are to provide for turning the stem with respect to the bolt to change the combination of the lock; to provide a single arm forming both the bolt and an operating handle therefor and to devise a novel form of casing for the operating parts of the lock. y

With the foregoing in view, the invention resides in the novel construction and arrangement of parts hereinafter fully described and claimed, reference being made to the accompanying drawing.

Figure 1 is a top plan view of a trunk showing the application of the lock.

FigsfQ and 3 are vertical sections on the plane indicated by the lines 2--3 of Figs. 1 and 5, showing the device respectively in locked and released positions. j

Fig. 4 is a horizontal section on the plane of line 4 4 of Fig. 2, parts being in elevation.

Fig. 5 is a vertical transverse section on the plane indicated by line 5-5 of Fig. Q.

Fig. 6 is a detail horizontal section on the plane of line-G of Fig. 5, showing one of the keepers.

Fig. 7 is a detail side elevation, partly in section, showing the stem and the bolt forming arms carried thereby.

Fig. 8 is an end viewJ of one of the tuinblers.

Fig. 9 is a perspective view of one of the rings which are adjustable around the tum blers to change the combination of the lock.-

In the drawing above briefly described, the numeral 1 designates an approximately cylindrical casing open along one side as seen at 2, while the opposite side of said casing is formed with longitudinal slots 3 and 4 which open through its ends. At the inner end of the slot 3, an annular abutment 5 is secured in the casing 1 by a screw or the like G, while a tubular plug 7 is inserted in the opposite end of the casing and is provided with a slot 8 registering with the slot 4. Any means such as a screw 9 may be employed for securing the plug 7 in place.

Confined between the abutment 5 and the plug 7, are a plurality of rotary tumblers 10 preferably having rings 11 carrying numbers or other indicia 12, said rings being circumferentially adjustable on the tumblers to vary 4the combination of the lock. rIhe several tumblers are preferably spaced apart by collars 13 secured in the casing 1 by any suitable means such as screws 14. Each tumbler is provided with a longitudinal internal groove 15 and these grooves cooperate with projections 16 on a stem 17 which passes slidably through the tumbler-s. `When the several tuinblers 10 are turned to predetermined positions, all of the grooves 15 are alined with their respective projections 16 and consequently the stem 17 is allowed to shift to release the lock. When the tumblers are otherwise set however said stem cannot be moved. V

I have shown the stein 17 provided with two lateral arms 18 and 19, the former passing through slot 8, while the latter pro jects through the registering slots 4 and 8. It will be understood however that in some forms of the lock, only one of these arms may be used, and if the arm 19 is eliminated, the slots 4 and 8 will be unnecessary and the plug 7 need not then be made of tubular form. When the arm 19 is used, it may well be secured on the stein 17 by a set screw 2O receivable in a peripheral groove 21 in said stem, but it will be understood that other attaching means for said arm may be provided.

The arm 18 is by preference mounted on the stem 17 in the novel manner shown, said arm having an opening 22 through which the stem passes and being clamped against an external shoulder 23 on said stem by a nut 24 which is threaded on the latter. Suitable means such as a lug 25 and notches 26 may be employed for holding the arm and stem against relative turning although in some instances friction might be relied upon. When the lug and notches are employed, they are formed respectively on the arm 18 and the shoulder 28. By loosening the nut 24 and turning the stem 17 within the opening 22, the combination of a lock may be varied in a number of ways, and by utilizing this adjustment in connection with the adjustable rings 11, it is insured that'a great number of combinations may be obtained so that no two locks shall possess the same combination. l/Vhen the stem 17 is turned in the arm 18, it is of course similarly turned in arm 19, if the latter be used, by loosening the set screw 20. After the adjustment has been made, Vthis screw and the nut 24tare again tightened.

The arm 18 preferably extends in opposite directions from the stem 17, one end of said arm forming a bolt while the other end thereof projects from the open side 2 of the casing 1 and provides'an operating handle 27 for operating the look when released. Although the arm 418 is shown constructed in this manner, it will be obvious that this feature might be shifted to the arm 19,if desirable and furthermore it will be obvious that other handles may be employed if found desirable.

The free ends of the arms 18 and 19 may be constructed in any preferred manner, but I have shown them provided with openings 28 to receive relatively fixed keepers 29. Obviously, the bolt arms 18 and 19 might well be provided with projections and the keepers formed with openings but since this is a mere reversal, it need not be illustrated.

Then the lock is applied to a trunk or the like as shown in the drawing, it is preferably positioned in a recess 30 in the usual hinged top 31, and the casing 1 is provided along the edges of its open side 2, with lateral flanges 32 which are secured to the top 31 by bolts or the like 33. These bolts mai also secure in place a cover plate 34 having a slot 35 through which the handle 27 projects, and other slots 36 vthrough which the tumblers 10 are accessible for turning them as required. The front edge of the 'plate 34 by preference turns downwardly at 87 at the edge of the top 31 to protect the latter, and in order to guard the handle 27 against injury 4when the trunk, suit-case or the like is roughly handled, the horizontal portion of the plate in question is by preference provided with upwardly stamped projections 88.

The device is locked by shifting the handle 27 to the left of Figs. 2 and 3 and by then turning the tumblers 10 until their indicia 12 indicates that the grooves 15 are out of alinement with the projections 16. The bolts 18 and 19 are thus held properly engaged with the keepers 29, since the stem 17 cannot shift. To release the lock, the tumblers are turned to predetermined positions, thereby alining the grooves and projections 15 and 1G, whereupon the handle 27 may be shifted to the right to disengage'the bolts and keepers.

j Since probably the best results are obtainable from the general construction shown, itmay be followed, but within the scope of the invention as claimed, numerous minor changes may be made. It may be again pointed out that any number of bolts may be used, that these bolts may vary in design as occasion may dictate, and that the lock is not restricted in use to any particular field, but may be installed wherever applicable.

I claim:

1. In a permutation lock, an elongated cylindrical casing having a longitudinal slot, a central, slidable stem' disposed longitudinally in said casing, a bolt forming arm rigidly carried by and movable bodily with said stem, said arm extending laterally through said slot to hold said stem against rotation, a plurality of tumblers rotatable on said stem and held `against sliding in said casing, said stem and tumblers having coacting means for locking the former against sliding, and a handle for operating said bolt.

2. In a permutation lock, an elongated cylindrical casing, an abutment in said casing, a tubularplug in one end of said casing, said plug and casing having registering slots, a plurality of rotary tumblers confined in said casing between said abutment and said plug, a central stem passing through said tumblers, said tumblers and stem hav ing coacting means for normally locking the latter against sliding, an arm carried by said stem and movable bodily therewith, said arm extending laterally through said registering slots and forming a bolt, and a handle for sliding said stem.

Y 3. ln a permutation lock, an elongated casing, a slidable stem in said casing, tumblers in said casing, said tumblers and stem having coacting means for locking the latter against sliding, a handle for sliding said stem when released, and a lateral bolt'forming arm movable bodily with said stem and forming a bolt, means being provided to permit turning of said stem with respect to said arm to change the combination of the lock, said casing having a slot through which said arm extends.

4. In a permutation lock, an elongated' casing, a slidable stem in said casing, tumblers in said casing, said tumblers and stem having coacting meansl for looking the latter against sliding, a handle for sliding said stem when released, a lateral bolt forming arm through which said stem passes, a shoulder on said stem, and a nut threaded on said stem for clamping said arm against said shoulder to normally prevent turning of said stem, loosening of said nut allowing said stem to turn, whereby the combination of the lock may be varied, said casing having a slot through which said arm extends.

5. In a permutation lock, an elongated Cylindrical casing open along one side and having lateral attaching iianges along the sides of the opening, the opposed side of said easing having a slot, a stem slidable in said casing and having a bolt forming arm extending through said slot and a handle proj eeting through the-open side of the easing, tumblers in said easing for looking said stem, and a cover plate for the open side of the easing, said plate having openings to eX- pose said tumblers and handle for operation.

In testimony whereof I have hereunto set my hand.

MARK KOSICH.

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