US1251559A - Permutation-lock. - Google Patents

Description

H. F. & E. A. MORSE.

PERMUTATION LOCK. I

APPLICATION FILED AUG-I7 I9I6. 1,251,559. Patented Jan.'1,l9l8.

2 SHEETS-SHEET I.

EJ101156 and Witnesses 22 ,Mbllfi'fi Inventor flzyM/MM by Attorneys 7 25M, by I h H. F. 6: E. A. MORSE.

PERMUTAHON LOCK.

APPLICATION FILED Aus.n. 1916.

1,251,559. Patented Jan. 1, 1918.

V 2 SHEETS--SHEET 2- flfifylfofisa and Witnesses Inventors '1 Attorneys UNITED STATES PATENT HOMER F. MORSE AND ERNIE A. MORSE, OF FORT MORGAN, COLORADO, ASSIGNORS TO THE MORSE DOOR LOCK COMPANY, OF FORT I IQRGAN, COLORADO, A CORPORATION OF COLORADO.

FERMUTATION-LOGK.

' Specification of Letters Patent.

Patented Jan. 1, 1918.

Application filed. August 17, 1916. Serial No. 115,453.

1 b all whom it may concern:

Be it known that we, HoMnR F. Monsn and Enxn A. House, citizens of the United States, residing at Fort Morgan, in the county of Morgan, State of Colorado, have invented a new and useful Permutation- Lock, of which the following is a specification.

The object of the invention is to provide a simple, inexpensive and efficient device adapted especially to be used in connection with outside house doors and operating on the combination principle, whereby the manipulation thereof by one familiar with the combination to which the lock may be set is comparatively simple, whereas the attempt by anyone to ascertain the combination in order to open the lock, or set the lock for the opening of the door, may be readily detected.

Further objects of the invention will appear as the description proceeds, it being understood that changes in the precise embodiment of the invention herein disclosed, can be made within the scope of What is claimed. without departing from the spirit of the invention.

In the drawings Figure 1 is a face or outside view of the casing of a lock constructed in accordance with the invention.

Fig. 2 is a rear or inside view of the same.

Fig. 3 is a plan view with the casing broken away and portions of the device in section, the bolt being shown in its locked position.

Fig. 4 is a longitudinal sectional view taken substantially in the plane of the looking bolt.

Fig. 5 is a transverse section taken parallel with and approximately in the plane of the knob shaft.

Fig. 6 is a transverse sectional view taken on the plane indicated by the line 66 of Fig. 3.

Figs. 7 and 8 are detail views to show the means for adjustment of the tumblers with reference to the tumbler pins.

The sliding bolt 10 is suitably mounted in a casing 11 and is provided with a return spring 12 serving to retract the projecting end of the bolt when the latter is released, the bolt being held and locked in its normal or projecti g position by means of tumblers 1-3 carried by tumbler pins or plungers 14;

arranged transversely to the bolt and sliding through the outer side of the casing, said tumblers being adapted for engagement with seats or notches 15 formed in the bolt. The tumbler pins are yieldingly held in their normal positions by springs 16, and the projecting ends 14 of the tumbler pins, arranged preferably at the outer side of the lock casing, may be repressed against the action of said springs 16 to release the bolt. The tumblers are adjustable on the tumbler pins, so as to be either in or out of engagement with the tumbler seats in the bolt when the said pins are in their. normal positions a simple means of adjustment being illustrated in the drawings, Figs. 7 and 8, each tumbler being provided with pins 17 for engagement with sockets 18 in the tumbler pin. In Fig. 3 of the drawings the tumblers of two of the pins are shown in engagement with the bolt to lock the latter in its extended or looking position, while one of said tumblers is exposed, and should the pin carrying said tumbler be repressed in an effort to open the lock, the tumbler would engage the corresponding tumbler seat and thereby prevent the retraction of the bolt by its spring 12. On the other hand, taking only the tumblers illustrated in Fig. 3, if the pins carrying the tumblers illustrated in engagement with the bolt are repressed. the retraction spring of the bolt would withdraw the same and permit the opening of the door.

In practice it is preferred to use several of the pins, arranged as shown in Fig. 4 on both sides of the bolt and all of them carrying tumblers for engagement with the bolt. sothat a variety of combinations can be effected merely by differently disposing the tumblers with reference to the pins by which they are carried. The projection of the bolt to bring it to its locking position is effected by a pinion 19 engaging a rack 20 on the bolt, said pinion being earned by a knob spindle or shaft 21 provided at the outer side of the casing with a knob 22 and pref: erably at the inner side thereof with a knob or grip 23 which consists as illustrated of a bell. Obviously the locking of the door may be effected therefore from either the inside or the outside thereof. After the release of the bolt and its retraction by the spring 12, the tumbler pins which have been repressed .will be held: repressed by contactof the tumblers with the sides of the bolt, but the turning of either knob to extend the bolt will be accompanied when the latter reaches its locking position by the engagement of the tumblers with their proper seats through the action of the springs 16.

In order that the unlocking of the door from the inside may be effected with facility and without the necessity of using the combination or separately actuating the tumbler pins, a release bar or member 2% parallel with the bolt 10 is provided, the tails or reduced port-ions 25 of the tumbler pins projecting therethrough and the springs 16 hearing thereagainst, said bar being slidingly mounted in the casing, as by providing the arms 26 at the extremities thereof with slots 27 engaging guide studs 28 ot the casing. The reduced portions 25 are provided with retaining elements 28 behind the bar 24:, to prevent the pins or plungers lat from being withdrawn from said bar, and to pull the pins with the bar when the bar is moved inwardly. The bar may be moved. to release the bolt, or in other words, to disengage all of the tumblers from the bolt by means of a push pin or plunger 29 attached to said bar and projecting through the inner or rear wall of the casing. Also in order to prevent the simultaneous disengage-ment of all of the tumblers from the bolt by pulling upon one of the projecting tumbler pins 1i at the outer side of the lock, said push pin 29 is preferably swiveled as at 30 in the releasing bar and is provided at the outside surface of the inner wall of the casing with a transverse pin 31, nor mally in engagement with the surface of said wall but adapted to be brought into registration with slots 32, by the turning of the pin, which, for convenience, is provided with a knurled head or button 33. After the lock has been operated, it can be restored to normal position by pulling the pin or plunger 29 inwardly and turning the same so that the pin or lugs 31 seat against the casing, as seen in Fig. 3.

In order to detect tampering ot' the lock with one unfamiliar with the combination, a trip rod 34 is provided in the paths of the reduced portions or tails of the tumbler pins, said rod being yieldingly held in its normal position by a spring and being connected by a link 36 with a bell clapper or knocker 37. This trip will be actuated by the movement of either or all of the tumbler pins and obviously if the proper pins are repressed on the first operation by one who is familiar with the combination, the bolt will be released at once and only a single signal of the bell will be the result, whereas if an effort is made to find the combination by successively pushing diiierent pins or different combinations of pins, the successive operation of the trip will give a corresponding number of alarms and thereby apprise occupants of the building of the eflort which is being made to discover the combination.

lVhat is claimed is 1. In a look, a casing, a bolt slidable therein, pins slidable through one side of the casing transversely of the bolt and having means engageable therewith to prevent the movement thereof, a release bar parallel with the bolt and movable toward and away from the same, springs between the pins and release bar, and a pin connected to the release bar and slidable through the opposite side of the casing, the casing and pin having co'operable means for preventing the movement of said pin.

2. In a look, a casing, a boltslidable therein, pins slidable through one side of the casing transversely of the bolt. and having means engageable therewith to prevent the movement thereof, a release bar parallel with the bolt and movable toward and away from the same, springs between the pins and release bar, a pin swiveled to the release bar and slidable through the. opposite side of the casing, the last mentioned side of the casing having a slot, and a lug carried by the last mentioned pin movable through said slot in one position of said pin.

3. In a look, a bolt, a plurality of tumbler members movable transversely of the bolt and engageable therewith to prevent movement thereof, said members extending to one side of the lock to be operated to release the bolt, and means for simultaneously moving the tumbler members out of engagement with the bolt and having operating means extending to another side of the lock.

4. In a look, a casing, a bolt slidable therein. tumbler members movable within the casing transversely of the bolt and operable from one side of the casing, a release member within the casing movable to and from the bolt, and having operating means extending to another side of the casing, springs between the tumbler members and release member, and means for preventing the movement of the release member when in one position.

In testimony that we claim the foregoing as our own, we have hereto aflixed our sig natures in the presence of two witnesses.

HOMER F. MORSE. ERNE A. MORSE.

lVitnesses H. LA BRIE, HARRY Snnr's.

Copies ofthis patent may be obtained for five cents each. by addressing the Commissioner of Patents, Washin gton, 10.0."

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