US864395A

US864395A - Combination-lock.

Info

Publication number: US864395A
Authority: US
Inventors: Neuman Tobias
Original assignee: Individual
Current assignee: Individual
Priority date: 1906-09-20
Filing date: 1906-09-20
Publication date: 1907-08-27
Anticipated expiration: 1924-08-27

Description

No. 864,395. PATENTBD AUG.`27, 1907. VAN'. Toms.v

coMBINATroN LocK.

PPLIQATION FILED SEPT. 20,1906.

'2 sngnTs-snnn'r 1.

IMM 1 VW JEH" No. 864.395. PATENTED AUG. 27, 1.907. N. ToBIAs. coMBINATI'oN Loox.

y APPLICATION FILED SBF120. 1906.

2 SHEETS-SHEET 2.

/fW/w/ e .m n fment.

NEUMAN TOBIAS, 'OF KINGSTON, JAMAICA.

COMBINATION-Loox.

To a-ZZ whom it may concern:

Bo it known that I, NEUMAN ToBIAs, a subject of the King oi Great Britain, residing at-Kingston, in the 4Islandoi: Jamaica, West Indies, have invented certain new and useful Improvements in Combination-Locks, oi which the following is a full, clear, and Vexact description. f v

' My invention relates tocombination locks, and particularly to those having means by which the combination can be readily changed;lv v

The principal object of the/invention is to'provide a lock o1 the general character' stated above, and in which a plurality of notched disks are rotatably arranged on the same axis, so that each disk may be adjusted with respect to its registering means.

With this and other objects in view, the invention consists in the features of construction hereinafter set orth and claimed.

In the drawings'. Figure 1 is a sectional view showing a door lock embodying the principles of my invention; Fig. 2 is a section on the line II-II of Fig. 1, looking in the direction of the arrow; Fig. 3 is a front View o a door having the lock applied thereto; Fig. 4 is an edge view of the door; Fig. 5 is a detail view showing the index disks by which the combination lock is operated; Fig. 6 is a detail view of one of the notched disks on its supporting core; Fig. 7 is a view of another notched disk on its supporting tube.

In carrying out the invention I make use of a plurality of concentrically arranged tubes which iit within one another so as to be' freely-rotatable. Each tube has separate registering means by which its angular position is determined, and also a notched or crowned extremity, the purpose of which is to enable the combination to be changed, as will hereinafter more fully appear.

Referring to the drawings in which like parts are designated by the same reference sign, l indicates broadly a door latch, having a casing 2, and a bolt 3, guided within the casing to have a to and iro move- 4 indicates a spring by which the bolt is normally impelled into locking relation. i

I provide means by which the bolt is always freely withdrawable lrom one side of the latch, and by which it can only be moved from the outside under certain circumstances. For this purpose the bolt has a plate 5, guided to have a slight independent longitudinal movement thereon, by virtue of the studs 6, projecting into the slots 7, of the bolt. By virtue of this construction Lthe bolt may be withdrawn whenever the plate 5 is moved rearwardly, but the bolt may always have a rearward movement independently of the plate to unlock the door in case the plate should be locked against movement. i

specification of Letters retenu. Application led September 20,1906; Serial No. 335,351.

Patented Aug. 27, 1907.

l0 designates a pivoted detent lever normally 'im- `pelled away from the plate 5 by a spring 11. The lplate 5 has a notch 12, into which the detent 10 may be xmoved to resist movement ofthe plate.

: As illustrated in the drawing the combination lock` devices are arranged to hold the detent 10 in the notch y12 against the tensionof the spring l1, until the correct combination has been set. For this purpose the casing- 2 is provided with an opening and has a stationary disk 2l inserted and fixed therein in which is a comparatively large aperture 13, in which is revolubly supported the largest one oi the series of concentric or nested tubes above mentioned. These tubes are indicated by the characters 14, 14, 14C, 14d.l Within the tube 14d there is a central solid core or shat 14e, although this may be also tubular if desired. While I have shown this particular number and arrangement o tubes, it is evident that this is immaterial. Each of the tub es and the central core or spindle 14e has a separate index wheel or disk, designated respectively l5, 15b, 15G, 15d, and 15e. These index wheels or disks occupy a convenient position on the outside of the casing, and are preferably diferent in size, so that they may conveniently beA registered with one another in order to set the combination. The other end of each of the tubes 14, 14h, 14", 14d, and also the central core or spindle 14", are notched or crowned with radial notches 16, of which there may be as many as desired, for example, twenty-six in each tube, corresponding to the letters of the alphabet.

17, 17h, 17", 17d, and 17e designate a series of disks each having aknotch 18, and a central hole corresponding respectively to the sizes of the respective tubes and the central core 14e. Each of these disks also has a key 19 adapted to enter the notches 16 above mentioned. It is evident that each disk may be positioned in this way in any desired relation to its index wheel 15.

20 indicates a cap threaded on to a stud 21 on the central core or spindle 14e, and 22 is a cotter pin to hold this cap in place.

The Various notched disks being all assembled on their supporting tubes, it is evident that they may be independently rotated to any desired position by manipulating the' exterior index wheels 15a, 15b, 15 and 15d. When the notches are all brought beneath the detent lever 10, the latter moves away from the plate 5 under the influence of its impelling spring ll, and thereafter the plate 5 and therewith the bolt 3 are freely movable from the exterior knob 9 of the door. Whenever it is desired to reset the combination this is readily accomplished by moving the pin 22'and the cap 20 and 1re-positioning the notched disks on the crowned ends of the various tubes 14, 14h, 140, etc., and the central core or shaft 14e.

What I claim, is:-

1. In a combination lock, a bolt sprng-impelled into closing relation and having slots therein, a plate having a fiat face in contact with said bolt and having studs engaging the slots of the bolt, whereby said bolt is guided on the plate, means for guiding said plate to move in a rectilinear path, separate door knobs having means engaging said plate and said bolt respectively and a detent for locking said plate whereby the plate is prevented from movement without preventing the movement of the holt.

2. In a combination lock, a bolt spring-impelled into closing relation and having slots therein, a plate having a flat face in contact with said bolt and having studs engaging the slots of the bolt whereby said bolt is guided on the plate, means for guiding said plate to move in a rectilinear t path, separate door knobs having means engaging said said studs andguded by the plate, a blade spring fixed at one end to the casing and hearing on said bolt to normally press the same into locking relation, separate door knobs having means engaging said plate and said bolt respectively, a detent lever movable into engagement with said plate and spring-impelled away from the same, and plurality of notched disks to .prevent such movement of said detent except when the notches of the disks are moved in proper alinement with one another.

4. In a combination lock, a casing, a plate and a bolt guided to have separate: movements parallel to one another, separate door knobs'adapted to move said plate and said bolt, said plate also having means for moving said holt, a detent engaging said plate, a series of concentric tubes revoluble within one another, each of which has a notched or crowned end, and a plurality of notched disks each having a key to coperate with the crowned ends of said tubes, said notched disks being adapted to rest against said detent.

5. In a combination lock, a bolt spring impelled into closing relation, a plate guided adjacent to said bolt, said plate being adapted to move said bolt, door knobs having separate means for displacing said plate and said bolt, a detent pivoted to engage said plate and a series of notched disks adapted to be moved into relation to resist displacement of said detent.

ln witness whereof, I subscribe my signature, in presg ence of two witnesses.