US338505A - Safe-lock - Google Patents

Description

(Model.) 4 Sheets-Sheet 1.

E. H. FLINT.

' SAFE LO0K.-

No. 338,505. I Patented Mar. 23, 1886.

flit 95%: 25'? In 10917302";

W KM.

N4 PETERS, Fhommm n m. Washingmn, D. t;

(Model.) 4 Sheets-Sheet 2.

E. H. FLINT.

SAFE LOCK.

No. 338,505. Patented'Mar. 23, 1886.

- E| LIIIIIII IlllllIlllllllIIlIllllllllllllllllllllllll! N. PETERS FhotM-imognphen Wzlhingtnn, D. C.

(ModeL) 4 SheetsSheet 4.

E. H. FLINT.

SAFE LOOK. No. 338,505. Patented Mar. 23, 1886.

ILH

TESZ: Edwz'zzjzCFZg'nZ UNITED STATES PATENT OFFICE.

SAFE- LOCK.

QPHCIFIC'ATION forming part of Letters Patent No. 338,505, dated March 23,1886.

Application filed November 24,1884. Serial No. 148,726. (ModeL) To all whom it may concern:

Be it known that I, EDWIN H, FLINT, of Cincinnati, Hamilton county, Ohio, have invented new and useful Improvements in Safe- Locks, of which the following is a specification.

My invention, as to its first and principal part, relates to an improvement in those safelocks in which protraction and retraction of the door bolt work is effected by a screwing motion, so that, even in event of the destruction of the lock proper, such door bolt-work will remain securely locked against clandestine attempts to retract it. With this object in view the construction is further such that (except during legitimate operation of the door bolt-work) the lock-bolt and the door bolt work are completely disconnected from each. other. The said screwing action may either consist in a spiral movement of the door-bolts themselves, (or parts of them,) or may be derived from rotation of nuts thereupon, as hereinafter fully explained.

My invention further comprises new and improved means for subordinating the tumbler system of a safe-lock to the timer, in which a peculiarly arranged double-headed pinion capable of being brought into gear with cogwheels on two of the tumblers operates (for the time being) to maintain these two particular tumblers out of gate, and (while so geared) to prevent operation of the anglebar, and to thereby prevent opening of the look.

In the accompanying drawings, Figure 1 is a partly-sectioned elevation of a safe-lock embodying my invention, the door-bolts and also the lock-bolt being shown retracted. Fig. 2 is a similar elevation, in which these bolts are shown protracted. Fig. 3 is a perspective view showing the device for preventing rotation of one of the door-bolt members. Fig. 4 is an elevation showing the tumbler and the timer mechanisms with their timer-connection set. Fig. 5 is a similar elevation of the same parts in the discharged condition of said con- IIGOlZlOll. Figs. 6 and 7 are edge views of the tumbler mechanism respectively in the set and discharged conditions of the timer. Fig. 8 is a section on the line 8 8, Fig. 2. Figs. 9, 10, 11, and 12 illustrate modifications of my door bolt-work.

A may represent portions of the frame of a safe-lock.

B may represent portions of a safe-door, of which 1) represents the edge to which the hinges (not here shown) are attached. The door-bolts (now to be described) are retained in proper position by guides a a.

Each door-bolt consists, preferably, of two members, D E, one of which (say the member D) is screw-threaded interiorly, as at d, to receive the exteriorly screw-threaded portion 6 of the other member. Both of said members are capable of endwise movement (protractile for locking and retractile for unlocking) within said guides. Rotation of the member, D, nearest the hinge edge of the dooris prevented by any suitable means-such as a projection, 11, that occupies a slot, a, in the case. The member E, on the contrary, is free to revolve (with a spiral motion about its geometrical axis) within the guides a a. Such spiral revolution of the member E (consequent on the described screwthreaded connection of the members D and E and the prevention of rotation of one of them) operates either to lengthen or shorten the compound bolt D Eas a whole, according to the direction of rotation of said member E. Such lengthening operates to thrust the outer extremities of both bolt members into the appropriate recesses or keepers of the safe-jambs, (not here shown,) from which recesses again reverse rotation of the said member E operates to free them. Such rotation is made possible (after release of the lock-bolt from the dogging mechanism of the lock proper) by the means following: Each memberE has a long pinion, G,which pinions gear in idlers H H, both of which gear to a wheel, I, whose beveled portion J (when the safe-bolt reaches its protracted position) comes into mesh with a bevel-wheel, K,whose shaft L terminates outside the safe-door in a handle, M. The wheels H H and I are all jou rnaled to head N of the lock-bolt 0, whose protractile and retractile movements may be accomplished by means of the usual angle-bar, P, which (when the gates q of the entire group of tumblers Q are brought into alignment) becomes liberated for customary use in protracting the lock-bolt. Such protraction brings the beveled portion J of the wheel I into gear with its drive or time mechanisms are as follows:

master wheel K, whose rotation to or fro operates to screw the said door-bolt members out or in, in the manner already explained. Shoulders e on the said bolt members serve to limit their play within their guides to a.

The tumbler mechanism (except as to the hereinaftendescribed devices which connect it with the timer) may have the usual or any suitable form and requires no specific description.

a represents the usual fixed stud about which the group Q of tumblers revolve.

R represents the driving-tumbler, whose attached spur-wheel T gears to and derives motion from the customary master-wheel T upon the operating arbor U, which arbor communieates outside the lock with the usual dial, S, and operating-handle T.

The devices which connect the tumbler and The outermost tumbler, Q of the group has a spurwheel, T. XV WV is a double-headed pinion, which is pivoted at one end to the loek-case, (where its member \V gears permanently with the spur-wheel T,) and at its other end to a latch, X, that is connected by pivot 00 to the case. Attached to the latch X is a springbridle, Y, whose engagement at its notch y upon the trigger Z of the timer operates to hold the member W of the double-headed that condition until disengagement of the said member (by release of the timer attachment) permits the combination to be operated.

This release is brought about by impact of one or other of the customary tappets, 1 2, of the timer.

The above-described preferred form of my safe bolt-work is susceptible of various modifications; for example, my said work may take the form represented in Fig. 9, in which the screw-threads d and e of my two bolt members D and. E are both external and respectively of right and left spirality, and are tapped within correspondingly right and left threads a a" within the guide a. (Jo-rotation and simultaneous protraction and retraction of the said bolt members are secured by means of a non-circular tongue, 6, upon one bolt member fitting within a corresponding socket, 61, within the other bolt member.

Another possible form of my safe bolt-work is shown in Fig. 10, wherein pinions G are: separate pieces from the bolt members E and revolve in bearings F upon the case, and have interior right and left screw-threadsg g, for the correspondingly screw-threaded shanks d and e of the door-bolt members. In this form the spiral motion is confined to the safebolt adjunct G, and the motion of both bolt members is simply rectilinear, their rotation being prevented by any suitable mechanical expedientsuch as pins 3,0ccupying channels 4 in such members.

For doors of large safes the safe-bolt motion of either of the forms above described may be communicated to distant bolts E by means of any customary or suitable transmitting mechanismsuch, for example, as shown in Fig. 11,

in which bolts E, operated as described in Fig.

10, are (by means of customary carrying-bars 5) connected rigidly to such distant bolts E, which in turn may (by customary rods,6, anglebars 7, and lovers 8) themselves operate on such distant bolts, as shown at E and D.

Still another mode of transmitting motion from such safe bolt-work to "distant safe-bolts is shown in Fig. 12, in which sprockets 10 (upon a bevel-wheel, J, journaled to the lockbolt head) communicate (by chains 11) with pinions G (similar to those represented in Fig. 10) upon the distant bolts E of said Fig. 12. From this form the wheels H and the cylindrical portion of the wheel I are omitted as unnecessary.

The forms shown in Figs. 9, 10, 11, and 12 may obviously be applied to safes which have door bolt-work only on the free edge of the door.

If desired, all or any number of the doorbolts of a safe having many bolts may be adapted to operate by a screwing motion in one or other of the forms above described.

I claim as new and of my invention- 1. In a safe-lock, the combination, with the lock-frame, of a two-part door-bolt having screw-threaded connection between said parts, a pinion secured to one member of said bolt, the knob or handle outside the safe-door, and geared connection between said handle and pinion, substantially as and for the purpose set forth.

2. In a safe-lock, the combination, with the lock-frame, of a two-part door-bolt having screw-threaded connection between said parts, a stop for preventing the rotation of one seetion,and a pinion secured to the other section of said bolt, the knob or handle outside the safe-door, and the geared connection between said knob and pinion.

3. In a safe-lock, the combination, with the lock-frame A, having the guides at a, of the two-part lock-bolt D E, having screw-threaded connections d e and the shoulders e, the stop for preventing the rotation of the section D, the pinion G on the section E, the handle M,

and the geared connection between said hanand gear-wheels carried by the lock-bolt for connecting said pinion with said elongated pinion, substantially as set forth.

5. The combination, with a serew-actuated door-bolt and its operating knob or handle having a shaft extending through the door and a master-Wheel secured thereto, of the lockbolt and the gear-Wheels carried by said lockbolt, for connecting said master-Wheel and bolt when said lock-bolt is protracted, as set forth.

6. The combination, with the lock -frame and a pair of screw-actuated door bolts having pinions G G, and the operating knob or handle M, having shaft L and master-Wheel K, of the lock-bolt 0, having the cross-head N and the gear-wheels carried by said crosshead, for connecting the pinions G G and master-Wheel K when the lock-bolt O is protracted, substantially as set forth.

7. In a permutation-lock, the combination, with the tumblers having spurs or teeth and a pinion gearing therewith,for compelling their synchronous rotation, of the time mechanism and connecting mechanism between said time mechanism and pinion, for moving the latter in and out of engagement with said spurs or teeth, for the purpose set forth.

8.. The combination, with the tumblers Q and R, having the spur-Wheels T and T, respectively, of the double-headed pinion WV WV, gearing with said spur-wheels,the latch X, in which one end of the shaft of said doubleheaded pinion is journaled, and the time mechanism for controlling theposition of said latch, substantially as set forth.

9. The combination, with the tumblers Q and It, having spur-wheels T and T, respect: ively, of the double-headed pinion W W, the latch X, the spring-bridle Y 1 the trigger Z, and the time mechanism, substantially as and for the purposes set forth.

In testimony of which invention I hereunto set my hand.

EDIVIN H. FLINT.

Attest:

Gno. H. KNIGHT, Guns. E. PRIOR.

Images