US404272A

US404272A - Time-lock

Info

Publication number: US404272A
Authority: US
Publication date: 1889-05-28
Anticipated expiration: 1906-05-28

Description

(ModeL) 4 Sheds-Sheet 1'. B. FRESH. TIME LOGK. No. 404,272. Patented May 28, 1889.

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N PETERS. Phoblhhographer, Walhinglun, 0,0.

(Modem B FRESH 4 Sheets-Sheet 42.

TIME LOCK.

No. 404,272. Patented May28, 1889 u. PETERS, Fmiu-Limo n nur. WashinglM, n.c.

(ModeL) 4 Sheets-Sheet 3.

B. PRESE.

. TIME LOOK.

No. 404.272. Patented May 28, 1889.

N. PETERS. Phn'mLiOwgnphar. Washington D Q 4 Sheets-Shet 4. B. FRESH.

- TIME LOOK.

(ModeL) PafentedMay 28. 1889.,

I? men $07) ,Bern arflese,

n. PETERS. Photo-Lithographer, Washingum. n c.

UNITED STATES PATENT OFFICE.

BERNARD FRESE, OF CHICAGO, ILLINOIS.

TIM E-LOC K.

SPECIFICATION forming part of Letters Patent No. 404,272, dated May 28, 1889. Application filed July 11, 1888. Serial No. 279,677. (Model) To aZZ whom it may concern.-

Be it known that I, BERNARD FRESE, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Time-Locks, of which the following is a full and complete specification.

My invention consists of a permutation-lock and a chronometer or clock attached together to be secured to the inner side of a vault or safe door in such a manner that the operation or working of the permutation-lock is rendered impossible by manipulation thereof from the outside of said vault or safe door when the chronometer movement is running, even though such manipulation be the proper work ing of the correct combination of said look. This object is attained through the suspension of the actuating-lever of the combination-lock by the mechanism placed in the frame of the chronometer and actuated or at least controlled thereby.

In my invention when the said chronometermovement is stopped the permutation-lock may be operated in the same manner as are operated like permutation-locks not so attached to and worked in connection with or controlled by a chronom eter and the purpose of my invention is to obtain a chronometer and a mechanism in the chronometer or clock portion of my device so constructed that the stopping thereof at any desired time, and at no other time, is easily provided for, or, in other words, the chronometer may be easily set to stop at any given time. To obtain a time-lock in which the manipulation of the permutation-lock thereof will not tend to stop the movement of the chronometer. when running, either by producing friction on any part thereof or by the placing of any of the parts forming the attachment between said chronometer and said permutation-lock in position to interfere with said movement of the chronometer, and also to secure a chronometer or clock having such elasticity in certain parts thereof thata shock or ar to said vaultdoor and to the time-lock thereon, whether caused by the detonation of an explosive or by a blow of a hammer or other material striking said door, will not stop the movement of such chronometer; but if from any drawings accompanying this specification and forming a part thereof, in which Figure 1 is a front view of a permutationlock with the face-plate thereof removed, of a chronometer or clock, and of the connecting part-s between said permutation-lock and said chronometer. Fig. 2 is a plan of a disk, which may or may not form one of the permutation-wheels used by me in one and the preferable form of my device. This disk is placed eccentrically upon the same pivot or shaft as are the slotted permutation-Wheels of the permutation-lock, such slotted permutation-wheels being indicated by'the small dotted circle in said Fig. 2, the large dotted circle in this figure indicating the circle described by that portion or part of the eccentricallypivoted disk the farthest away from said pivot as said disk is rotated thereon. This eccentrically-pivoted disk may have a slot thereon, as illustrated in Fig. 2, thereby constituting a permutation-wheel thereof, and such disk "is herein referred to as a permutation-disk or permutation wheel pivoted eccentrically. Fig. 3 is a plan view of the permutationwheels and actuating-lever of the permutation-lock, looking downward, on line 3 3 of Fig. 1. Fig. at is a cross-section on line 4 a of Fig. 8. Fig. 5 is a front view of a chronometer having mechanism therein performing the same function in substantially the same manner as does the mechanism in the chronometer in Fig. 1, and is a modified form thereof.

The chronometer illustrated in Fig. 1 is wound by the turning of the hand in front of the dial thereof toward the left, and said chronometer is stopped by the said hand as it is revolved to the right by the running down of said chronometer, coming in contact With the pin secured in the face thereof, while the chronometer illustrated in Fig. 5 is wound by a handle or key and is stopped, as hereinafter fully described, when a pin which projects through the dial of the chronometer drops into a slot in a rotatory disk in front of the dial, said disk being turned by said chronometer to the right one complete revolution in fortyeight hours, as indicated on the face of the dial, in the running down of said chronometer. This disk may be adj ustcd at any time by turning it either to the right or to the left to such a posit-ion that the chronometer will stop in any number of desired hours independently of the winding up of the chronometer. This is accomplished by turning the disk into such place that said hours will neeessarily elapse before thedisk having the slot thereon is rotated by the chronometer, so that said slot is opposite said pin.

lVhen my invention is so constructed that the stopping of the ehronometer employed is effected by a hand or lever actuated by the said chronometer coming in contact with a pin or other stationary stop, as illustrated in Fig. 1, the setting and winding thereof are performed in one act, and in this form if the chrontnneter be overwound there is no way of setting it to stop at the desired time, but said ehronometer will run as much longer than the desired time as it has been. so overwound.

\Vhen my invention is embodied in the modified form illustrated in Figs. 5, 6, 7, and 8, and in which, as stated, the said chronometer is stopped when a pin projecting through the dial of said ehronometer drops into a slot in a revolving disk actuated by the chronemeter as said slot is turned in proper relative position therewith, the winding of said chronometer and the setting thereof to stop at a given time are independenteach of the other and are performed by different and independent movements.

In the deviceinvented by me and in allihe modified forms thereof herein described a curved pivotal lever turnin gfreel y on a pivot in the chronometer-frame is used, and the modifications herein set forth consist, first, in dilferent ways of connect-in said curved pivotal lever with the actuatinglever of the permutation-lock, whereby said actuating-lever is suspended from contact or intermeshing with the permutatioil-wheels of said lock, and, secondly, in the different ways in which the said pivotal lever is held and controlled. in a suspended position or released therefrom by the mechanism in said chronometcr. In all the several forms the action of said curved pivotal lever is substantially the same.

Fig. (i is a cross-section on line (3 (l of Fig. 5. Fig. 7 is a plan view of a portion of the ehronometer illustrated in Fig. 5 on an en.- largcd scale, with the dial thereof removed and with aportion of the front plate forming the frame-work of the chronomcter taken away, showing a part of the stopping mechanism and connecting parts between said chronometer and the permutation-lock and those parts of the permutation-lock directly connected therewith; and Fig. 8 is a plan view on a lower plane than Fig. 7, duplicating a few of the parts illustrated in Fig.7, and showing the remainder of said parts. Fig. 7 should be viewed as superimposedupon Fig. 8, the several partsillustrated in the two figures not being drawn in one figure to avoid confusion from the multiplicity of lines which would necessarilybe required therefor. Figs. 9 and 10 illustrate peculiar constructions of a balance-wheel, one or the other of which forms are used by me in preference to the ordinary balance-wheel. In this form or construction of the balance-wheel a shock or jar received by the chronometer will not cause the balanccpivots to break. Figs. 1]. to 1-l-, both inclusive, illustrate mechanism constituting a modified form of that illustrated in Figs. 5 to 8, whereby the pivotal lever, with its dependent parts illustrated in full in said Fig. 8, are held in a suspended position. Fig. ll. is an elevation of said mechanism. Fig. 12 is an elevation of the same mechanism illustrated in Fig. 11, viewed from the other side thereof. Fig. 12: is an elevation of a spring which presses againsta flattened place on spindle or shaft upon which said mechanism illustrated in Figs. 11,12, and la is placed. Fig. 1% an elevation of said mechanism, viewed from the same direction as in Fig. 12, but with the parts thereof in different relative positions. Figs. 15 to 18, both inclusive, illustrate a modified form of the parts attaching the actuailing-lever of the permutationlock to the curved pivotal lever hereinbefore referred to, and also illi'istratea modified form of the one of the permutation-wheels of said lock illustrated in. Fig. 2. Fig. 15 is an elevation of a perinutation-lock with the faceplate removed, of a cln'onomet-er, and of the parts connecting said lock and said chronomeier. Fig. it; is a front view of a lever formin g one of the connecting parts between the perniutatiim-lock and the chronometer and of the permutation-whecl in the lock constiti'itingamodifiei'l form of the wheel illustrated in Fig. 2. ()n this permutatiml-u'heel a pin or projection on the free end of said lever rests, and into the slot thereof said projection on said lever may drop when in proper relative position therewith. liig. 17 is a perspective view of said lever; and Fig. 19 is a plan view of the slotted permutation-\vheels and connecting-lever on the spindle of the permutation-lock, whereby the belt of said permutation-lock is thrown.

Ilike letters refer to like parts throughout the several. views.

A is an ordinary perm utation-loelc, and (1 is the bolt thereof.

II is a ehronometer or clock.

3 is the wheel in said permutation-lock by which the bolt thereof is thrown through suitable connections hereinafter named. Wheel 13 has a hook or projectimi, b, thereon.

3' is a lever pivoted at one end to bolt (1, and having at the other and free end thereof hook or projection Z). Lever B is termed by me the actuating-lever of the permutationlock, as the hook thereof, engagii'ig when in proper relative position with projection I) on wheell), draws bolt to from a locked to an unlocked position, provided there be, after such IIO engagement, any rotation of said wheel B in the direction indicated by the arrow thereon in Fig. 1. Rotation of said wheel B in the contrary direction throws said bolt 0, from an unlocked to a locked position by means of said actuating-lever B.

The purpose of my invention being, as hereinbefore stated, to prevent the manipulation of the permutation-lock and the opening of a vault-door or safe thereby when the chronometer is going, such result being accomplished by suspending said actuating-lever B so that the hook or projection l; on the free end thereof cannot at such times be brought in contact with the hook or projection b on wheel B, my invention consists in the several de vices producing such suspension, combined with the mechanism controlling the operation of said devices.

The drawings accompanying this specification illustrate several methods of attaching the actuating-lever in the permutation-lock to the curved pivotal lever in the chronometer by which said actuating lever is suspended.

In Fig. 1, wherein, in combination with the eccentricallypivoted slotted permutationdisk illustrated in Fig. 2, one of said ways is indicated, actuating-lever B is attached by link D, which is loosely pivoted at one end thereof to said actuating-lever B and at the other end thereof to curved pivotal lever E. The eccentrically-pivoted disk D, (illustrated in Fig. 2,) above referred to, causes a slight rotary movement in actuating-lever B when said permutation-wheel D is turned by the pin 1) resting on the periphery thereof.

In Fig. 15, wherein, in combination with Figs. 16 and 17, a modified form of connecting actuating-lever, B, to curved pivotal 1ever E is illustrated,the actuating-lever B is attached to said pivotal lever E by a pin, 1), on said lever B fitting loosely into a slot on lever D, one end of said lever D turning freely on a pivot, d, firmly secured in the frame of said permutation-lock A. Lever D has pin (1 at the free end thereof, fitting loosely into the slot 6 in the curved pivotal lever E. On the under side of lever D there is placed lug or projection d, and on any rotary movement of permutation-wheel D, on the periphery of which there is a corresponding notch or depression, a slight rotary movement is given said lever D, and such movement is communicated to curved pivotal lever E, for the purpose hereinafter set forth.

7 In Fig. 7, wherein a second modified form of connecting the actuating-lever B to the curved pivotal lever E' is shown and illustrated, actuating lever B is attached to pivotal lever E by pin Z) on said lever B fitting loosely in notch or slot (Z on lever D, said lever D turning freely 011 pivot d at one end thereof and pivotally attached at the other end thereof to lever E, said lever E being secured to leverE, and lever Ebeing attached to said lever E. Lever E has slots therein, one of said slots, E', forming a guide for said lever, and the other thereof, E, fitting over a pin in pivotal lever E. Rotary movement in actuating-lever B is thus transmitted to curved pivotal lever E, and rotary movement in said lever E is likewise transmitted to actuating-lever B. This rotary movement in actuating-lever B may be secured by an eccentrically-pivote'd disk orpermutation-wheel, as illustrated in Fig. 2,

or by a permutation-wheel having a V-shaped slot therein, as in Fig. 16. I prefer, however, to use the eccentrically-pivoted permutation- Wheel having an ordinary slot therein, in which the pin dropping into the slots in the other permutation-wheels may drop when all of said permutation-wheels are in proper relative position.

In the method of attaching the actuatinglever B to curved pivotal lever E illustrated in Fig. 7 it will be observed that the V- shaped projection c on lever D in Fig. 17 is extended, forming a lug or pin sufficiently long to drop in the slots in all of said wheels, as does pin or stop 6 in Fig. 3, and that the said pin 1)" in Fig. 7 is placed in such position on lever B that it cannot come in contact with the permutationqvheels, the said pin 1) serving merely as a connection between levers B and D by entering into 'slot or notch d on said lever D.

. It is evident that whatever mechanism may be used for controlling the suspension and movement of curved pivotal lever E in the chronometer either of the above methods of connecting actuating-lever B to said leverE may be used, as desired. I prefer, however, the way illustrated in Fig. 7.

WV hen curved pivotal lever E is in the position indicated in Figs. 1 and 15, if the several slotted permutation-wheels of the permutation-lock be so arranged that the slots therein are inline underneath the pin 5 on actuating-lever B, said lever may drop by gravity into the position indicated in said figures, and bolt a of the permutation-lock may'then be withdrawn by the turning of wheel B to the left; but when said curved pivotal lever E is in the position indicated by Fig. 14 said actuating-lever B is suspended above wheel B free of contact therewith, and bolt acannot then be withdrawn from the locking position by such or other turning of the wheel B.

. WVhen the chronometer is going, the mechanism about to be described, and illustrated in Figs. 11, 12, 13, and 14, as well as the modified form thereof illustrated in Figs. 5, 6, 7, and 8, holds curved pivotal lever E and its dependent parts in a suspended position when the combination of the permutation-lock is being manipulated, and hence the lock cannot be thrown; but when said chronometer is stopped by manipulating the wheels of the permutation-lock said curved pivotal lever E and its dependent parts are released from such suspension, and said lever may assume the position indicated in said Figs. 1 and 15,

and will assume such position when the slots in the permntation-wheels are in proper relative position with the pin dropping therein.

The mechanism illustrated in Figs. 11 to 1%, both inclusive, for holding and controlling in position pivotal lever E and its dependent parts in a suspended position consists of the following parts:

Curved pivotal lever E, hereinbefore described, turning freely on a pivot in the chronometer-frame, has notch or hook forming step e at one end thereof, lug or projection 0' thereon, and slot 6 therein.

F is a dog rigidly secured on spindle or shaft K, turning with said spindle, and adapted to engage with notch or hook e" on pivotal lever Spindle K is held in position by spring K, one end of said spring being secured to the frame of the chronometer and the other end thereof pressing against fiattened portion of said spindle K. On said spindle K is loosely pivoted plate L. The movement of said plate L is limited by pin or stop Z in the frame of the chronometer. This plate L has dog M, pivoted at point m thereon, pin m being placed in the free end of said dog M and adapted to engage with the teeth on wheel N, one of the wheels of the train of the chronometer. Spring Z, attached at one end to plate L, presses with the free end thereof against dog M, tending to hold said dog against one side of the slot or hole in said plate L, the movement of said dog M around pivot m on plate L being restricted by the size of the said hole in said plate L, through which pin on passes from the back to the front side of said plate, and when this plate L is in its ordinary position, or the position it assumes when the chronometer is going, pin on on dog M is not in contact with the teeth on wheel N, although said pin on is adapted to and does come in contact with said teeth as plate L is assuming such osition from the position into which it is ft reed by the lug or projection e on pivotal lever E coming in contact with stop I on said plate when said pivotal lever E is rotated, in the manner hereinbefore described, by the turning of disk D.

g a pin in plate L. \Vhen plate L is revolved by pivotal lever E, as described, the said pin (1 comes in contact with deg F, and the free end of said dog is thereby raised from contact with stop 6 on said pivotal lever E. \Vhen plate L is in the ordinary position it assumes, said pin q is not in contact with dog F.

The operation of the mechanism illustrated in said Figs. 11, 12, 13, and 1% when placed in a chronometer constructed and attached to a permutationlock in the manner illustrated in Figs. 15, 16, 17, and 18 is as follows: Vhen permutation wheel or disk D in the permutation-lock A is rotated in either direction by the turning of the spindle of said lock, the free end of lever I) is raised by the V-shaped project-ion d thereon in contact with the periphery of said wheel being forced out of the V-shaped notch in said wheel D, and when said lever D is thus raised curved pivotal lever E is partially turned on pivot c by pin c in slot (2 in said lever E. This movement of said lever E raises the free end thereof from the position illustrated in Fig. 14: to and beyond the position illustrated in Fig. 11, and such movement of the free end of said lever E causes projection e thereon to come in contact with stop P on plate L, thereby turning said plate and spindle K and raising dog F by pin or stop (1 away from contact with stop e on said lever E. At the same time, by the revolution of said plate L, dog M, pivoted thereon, is thrown or dragged over the teeth of wheel N from the position illustrated in Fig. 1%, or nearly so, into the position illustrated in Figs. 11 and 12. \Vhen the plate L is in this last-described position, there is a tendency therein to return to its first-named position, both from the action of spring K on spindle K and from gravity. If the chronometer be not running, wheel N will remain immovable, and tooth m on dog M will therefore remain at rest, because of said tooth m intermeshing with said teeth of wheel N, and the said wheel acting, therefore, as astop for said lever M. As lever M is pivoted to plate L, the said plate is thereby held in the position illustrated in Figs. 11 and 12, and dog F is held away from contact with step c" at the end of pivotal lever E, and if the permutation-wheels of the permutation-lock be so placed by properly working the combination thereof that the slots therein are all. in proper relative position the said pivotal lever E, lever D, and actuating-lever 13 may drop into position that hook I) on said actuating-lever B may engage with projection l) on wheelB, secured to the spindle of the permutation-lock, and the belt a will be thrown in the ordinary manner. If, however, the chronometer be going, pin on of dog M, resting upon the teeth of wheel N, as described, may move along in unison with the movement of the teeth of said wheel N, as the said wheel revolves in the direction indicated by the arrow thereon in Fi 11, and by such revolution of wheel N, the movement of said pin m and dog M being thereby possible, spring K, pressing upon spindle K, and the action of gravity on .)late L will turn said plate L into the position illustrated in Fig. l-it before the several permutation-wheels of the lock can be arranged in such position that pivotal lever E and its dependent parts can drop from the position wherein dog F can engage with stop a as said dog regains its said position, and said dog F will therefore hold said pivotal lever E, with its dependent parts, suspended above said permutation-wheels in the manner hereinbefore described.

The modified form of the last-described mechanism, said modified form being illustrated in Figs. 5, (3, '7, and 8, is constructed as follows: Dog F is rigidly secured to spindle or shaft K, an d spring K having one en d thereof rigidly secured to the frame of the chronometer and the free end th creof pressing against a flattened place on said spindle K, or against a shoulder on a sleeve rigidly secured to said spindle K, tends to maintain dog F in position to engage with stop a" on curved pivotal lex er E. Upon the lower side of dog F is projection forming stop P. WVhen pivotal lever E is rotated, in the manner hereinbefore described, by the movement of the disk D in the lock, projection or lug 6 upon the free end of said lever comes in contact with stop P, and dog F is turned with spindle K, and the free end of said dog F raised thereby from contact with stop 6 on said lever E. On dog F is pivoted dog M, having a pin, m, thereon adapted to engage with the teeth of wheel N, and Z is a spring tending to hold said pin m on dog M in engagement with the teeth on wheel N, the movement of said dog M being limited by stop T. Dog L and arm L" are rigidly secured to shaft or spindle 70. Spring L rigidly secured at one end to the frame of the chronometer, presses against arm L, tending to keep said arm in contact with the teeth of the scape-wheel of the chronometer. At the free end of the dog L on pivot is is placed dog 0. Dog 0 is pressed against pin or stop 0' by spring R. S is a pin in dog 0, which passes through a hole in the fi ont plate of the frame of the chronometer, and is adapted to drop into slot S in revolving disk WV. There is also placed on the free end of dog L pin f adapted to engage with shoulder or projection f of dog F. It will be observed that dog 0 being pivoted at is on dog L and held against stop 0 by springR in the man-' ner described, the said dog 0, with pin S thereon, is united with said dog L in a sufficiently rigid manner to move in unison therewith, except when said dog 0 is turned upon its pivot by the turning backward of disk WV while pin S is in the slot S of said disk WV; and the flexibility given pin S by the arrangement of dog 0, pivot and spring R is solely for the purpose of permitting said backward movement in disk W Without injury or breakage to lever L or pin S. When slot S in disk WV is in proper relative position to pin S, the said pin will be forced into said slot by spring L and when said pin S is in said slot S pin f on dog L, engaging projection f on dog F, -raises the free end of said dog F from contact with stop 6 on pivotal lever E, and hence any manipulation of the permutation-wheels of the lock will cause pivotal lever E to rotate or drop, in the manner hereinbefore described.

The manner in which the disk WV is arranged and controlled is as follows:

1 is an hour-wheel of the chronometer, having shoulder 2 thereon, and also having plate 3 secured to one end of the hub thereof.

4 is a sheet-metal spring having three or more prongs or fingers. The hub of wheel 1 projects through a hole in the front plate of the frame of the chronometer, and spring 4 is placed upon said hub, resting against shoulder 2. Disk WV is placed upon the hub of wheel 1, resting against spring 4, and plate 3 is then placed over said disk WV and firmly secured to the hub of wheel 1, as by screws 5 5.

WV is a hand or pointer firmly secured to disk WV. It is evident that the disk W may now be turned freely without movement of wheel 1, but that any rotary movement of wheel 1 will be transmitted to said disk W, and said wheel 1 is turned to the right in the running down of the chronometer.

6 6 are teeth on the face of disk W.

7 is the glass in the front of the dial of the chronometer, and has a hole therein through which the winding-shaft of the chronometer projects. 1

8 is a spring having three or more fingers or prongs and pressing against handle 9. This handle 9 has a hub passingthrough a hole in glass 7 and upon the end of said hub are teeth 6 6, adapted to engage with teeth 6 on "disk WV. By pressing handle 9 downward against spring 8 teeth 6 mesh with teeth 6 on disk W, and said disk is thereby set, the proper position in which to set said disk WV being determined by hand or pointer W coming opposite the figure indicating the clesired number of hours the clock is to run 011 the dial of the chronometer. The said dial consists of a ring having divisions properly numbered thereon secured to the front plate of the chronometer, the hand WV moving over one of said divisions in one hour.

10 is a handle by which the chronometer is wound. Handle 10 maybe secured firmly on its spindle or removable therefrom, forming a key thereof, as desired.

It is evident that handle 9, spring 8, teeth 6 6 on one end of the hub of said handle 9, and teeth 6 6 011 the face of disk WV may be omitted and a hub placed on said disk WV having a squared end fitted for a key, or having a squared hole into which the key fits, if desired. It is also evident that if the slot in IIO plate L be made sufficiently large pin m will at all times. rest in and upon the teeth on wheel N, in which case the revolution of said wheel N when the chronometer is going will repeatedly lift said pin m and lever M, on which said pin on is placed, as each tooth of said wheel N passes under said pin. If pin on and the lever or dog of which it forms a part be thus allowed to rest continually on wheel N, I prefer to place a ratchet-wheel rigidly on the shaft of wheel N, having teeth better adapted to thus lift pin on than are the teeth of said wheel N; but the operation of my deviceis not materially changed by the addition of such ratchet-wheel and the enlargement of said slot in plate L.

The operation of the mechanism last de scribed is as follows: When the chronometer is wound and in operation, wheel N revolves in the direction indicated in the arrow thereon in Fig.8, and if dog F be thrown into position illustrated in Figs. 7 and S by projection e on pivotal lever E coming in contact with projection I" on said dog I in the movement of said pivotal lever E, as hereinbefore described, pin on on lever M will rest upon the teeth of wheel N, and as said wheel revolves will travel along therewith, and dog F will thereby regain such position as to engage with stop 6" on pivotal lever E, thereby holding said lever with its dependent parts in a suspended position. The movement of wheel N is so rapid that dog F is returned to engagen'ient with stop 0" before the permutation-wheels can be moved into position to allow said pivotal lever E to rotate, so that the free end thereof will drop below a point where said dog F will so engage with said stop 6. \Vhen slot S on disk comes in proper relative position with pin S, said pin drops thereinto, causing dog L to partially rotate with spindle 7.: and pin f on said dog Ii", coming in contact with projection f on deg F, raises said dog 1 from contact with step c, and the permutation-lock may thereafter be operated as if the chronometer were not at tached thereto.

Thebalance-wheel illustrated in Figs. 9 and 10 of the drawings is constructed follows: 13 is the hub thereof. 14: are the arms or spokes, and 15 the rim. The arms ii are of suitablyelastic material between thepoin t of attachment to the hub of said balance-wheel and the point of attachment to the rim thereof, so that any shock or jar to the pivot oi the balance-wheel is not transmitted with its full intensity to the rim of the balance-wheel, and in order to prevent the movement so transmitted to said rim from breaking the pivot of the balance-whcell place guides 16 1(3 16, having grooves 17 17, therein, so that the said rim of the balancewheel moves freely insaid grooves. Any oscillation of the rim of the halanee-wheel causes it to strike said guides, the said guides thereby receiving the strain transmitted to said rim in place of such strain coming upon the pivot of said balance-wheel.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, 1s

1. In a time-lock, a pivotal lever having a hook or lug forming a stop at the free end thereof, in combination with the actuatinglever of a pernuitationlock and a disk eecentrieally placed on the spindle of said lock, said pivotal lever and said actuating-lever being connected together, and the free end of said actuatingdever connected with the periphery of said eceentrically-pivoted disk, whereby rotation of said disk produces move ment in said actuating-lever and in said pivotal lever, all substantially as described.

2. In a time-lock, a lever having a hook or lug forming a stop at the free end thereof and a second stop thereon, a spindle, a dog placed on said spindle adapted to come in contact with the hook or lug on said lever, a stop on said dog adapted to come in con tact with said second stop on said lever, and. a second dog pivoted on said first-named dog and adapted to engage with the teeth of one of the wheels of the train of a chronometer, in combination with a second spindle, a dog thereon, and a pin on said dog adapted to engage with said first-named dog, and an arm on said second spindle adapted to engage with the teeth of the scape-wheel of said chronometer, whereby when the pin on the dog pivoted on said second spindle is in the slot in said disk the arm on said spindle is in engagement with the teeth of the scapewheel of the chronometer, the free end of the dog on said first-named spindle is raised from contact with the hook on said lever, and the dog pivoted on said last-named dog is in contact with the teeth of one of the wheels of the train of said chronometer, all substantially as described, and for the purpose set forth.

3. In a time-lock, a chronometer having an hour-wheel with a hub thereon projecting through the front plate of the chronometer and a shoulder thereon, a spring placed on said hub and against said shoulder, and a slotted disk having gear-teeth thereon placed on said hub and spring and securml thereon, in combination with a second gear-wheel having a hub projeetii'ig through a hole in the glass in front of the dialdate of said chronometer, and a spring resting against said glass and against a handle placed on said projecting hub, whereby said lfiSt-IlftlilOd gear'wheel is adapted to engage with said first-named gearwheel on said slotted disk and adjust the same independently of said hour-wheel, and the said hour-wheel actuating said slotted disk in the running down of said chronometer, all substantially as described.

i. In a time-lock, a lever having a hook or lug at the free end thereof forming a stop, and a second stop thereon, a spindle, a dog plaeed on said spindle adapted to come in contact with the hook or lug on said lever, a stop on said dog adapted to come in contact with said second stop on said lever, and a second dog pivoted on said first-named dog and adapted to engage with the teeth of one of the wheels of the train of a chronometer, in combination. with a pin or lever on the hour-indicator spindle of said ehronometer adapted to come in contact with a stationary stop in the running down of said chronometer, thereby stopping the same, all substantially as described.

5. In. a time-lock, a pivotal lever having a hook and a lug at or near the free end thereof forming stops, the actuating-lever of a permutation-lock, and a disk eccentrically placed on the spindle of said lock, said pivotal lever and said actuating-lever being connected to gether and the free end of said actuating-lever connected with the periphery of said 00-.

oentrically-pivoted disk, whereby rotation of said disk produces movement in said actuating-lever and in said pivotal lever, in combi- ITO nation with a spindle, a dog placed thereon adapted to engage With the hook on said pivotal lever, a plate also placed 011 said spindle, and a dog on said plate adapted to engage with the teeth of one of the wheels of the train of a chronometer, and a stop on said plate adapted to engage with a lug on said pivotal lever, all substantially as described.

6. In a time-lock, lever E, having stops 6 and e thereon, spindle K, dog F, having stops P and f thereon placed on said spindle K, dog M, pivoted on dog F and adapted to engage with the teeth on one of the Wheels of the train of a chronometer, spindle k, and stops S and f on dog L, in combination With disk WV, having slots S thereon placed on the hub of the hour-indicating Wheel of said chronometer and pressing against a spring also placed on said hub, all substantially as described.

7. In a time-lock, lever E, having stops e and e thereon, spindle K, dog F, having stops P and f thereon placed on said spindle K, dog M, pivoted on dog F and adapted to engage With the teeth of one of the Wheels of the train of achronometer, spindle is, dog L and arm L on said spindle 7t, and stops S and f on dog L, in combination With the actuatinglever of a permutation-lock connected to said lever E, all substantially as described.

8. In a time-lock, lever E, having stops e and e thereon, spindle K, deg F, having stops P and f thereon placed on said spindle K, dog M, pivoted on dog F and adapted to engage with the teeth of one of the Wheels of the train of a chronometer, spindle 10, dog L and arm L on said spindle 7c, and stops S and f on dog L, in combination with the actuatinglever of a permutation-lock connected to said lever E, and eccentrically-pivoted disk D on the spindle of said permutation-lock, all substantially as described.

9. In a time-lock, lever E, having stops 6 and e thereon, spindle K, deg F, having stops P and f thereon placed on said spindle K, dog M, pivoted on dog F and adapted to engage With the teeth on one of the Wheels of the train of a chronometer, spindle 7c, dog L and arm L on said spindle k, and stops S and f on dog L, in combination with the actuatinglever of a permutation-lock connected to said lever E, and permutation-Wheel D, having a V-shaped slot therein, whereby the rotating of the spindle of the permutation-lock and said Wheel D will produce movement in said lever E, all substantially as described.

10. In a time-lock, a chronometer having an hour-Wheel with a hub thereon projecting through the front plate of the chronometer and a shoulder thereon, a spring placed on said hub and against said shoulder, and a slotted disk having a squared hub thereon, in combination with a key adapted to engage with said squared hub, whereby said slotted disk may be adjusted by said key independently of said hour-wheel, and the said hour-Wheel actuating said slotted disk in the running down of said chronometer, all substantially as described.

BERNARD PRES E.

Witnessesz, '7

CHARLES T. BROWN, FLORA L. BROWN.