US384856A - Elected magnetic time lock - Google Patents

Description

.(No Model.) v 3 sheets-sneet- 1.

` l c. KINTNER ELECTRO MAGNETIC TIME LK.

No. 384,856. 'Patented June 19, 1888*.

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C. J. KINTNBR.

ELECTRO MAGNETIC TIME 1.00K.

(No Model.)

Patented June 19, 1888.

(No Model.) 8 sheets-sheen, s.

C. J. KINTNER.` ELBGVTRO MAGNETIC TIME LOCK.

' No. 884,858. Patented June 18, 1888.

-NiTED STATES PATENT Oi-EIcEtN lOHJMJES J. KINTNER, OF NEW YORK, N. Y.

ELECTRO-MAGNETIC TIME-LOCK.

SPECIFICATION forming part of Letters Patent No. 384,856, `dated lune 19, 1888.

Application tiled December 5, 1887. Serial No. 956,983. (No model.)

To @ZZ whom t may concern.'

Be it known that I, CHARLES J. KINTNEE, of New York, N. Y., have invented a new and useful Improvement in Electro-Magnetic'lime- Locks, of which the following is a specification.

My invention relates to improvements in timelocks; and to this end it consists in` a time mechanism located at a police-station in connection with an electrical circuit joining said police-station, and a safe or vault at another station with electrical connections both at the policestation and the safe to be protected, these connections being such that any disturbance of the circuit will immediately automatically cause an alarm to be set up at the policestation.

It consists, further, in certain details of con struction hereinafter enumerated, and particularly pointed out in the claims which follow this specification.

A full understanding of the invention will be had by reading the following specification and accompanying drawings, in which-` Figure lis a vertical elevation of a combination-lock and my attachments, showing the circuit made through a magnet in a safe. Fig.` 2 is a similar elevation, showing the circuit broken at the safewith the locking-dog drawn. Y

Fig. 3 is a horizontal cross-sectionon lines 3 r3, Fig. 1, showing the gate in its lower position and controlling-magnet, together with the tumblers or disks of the lock and the locking apparatus. Fig, 4 isadiagrammatic view showing the circuits, the time mechanism, and electrical connections at the police or other guarding station. Fig. 5 is asimilar View showing all the circuitconuections at both stations with the safe-door locked and the gate held out of acting position.

Prior to my invention it was the custom to locate the protecting time mechanism within the safe, and so set as to withdraw or control the operation 0f` the dog at a predetermined hour, in accordance with well-,known methods of operation, which it is not necessary to describe here. With such apparatus, however,

it is impossible to enter the safe at any time other than the stated time, when it is designed that the time mechanism shall liberate the gate and place the bolts in condition to be drawn. Such apparatus is liable to and often does get out of repair, and `it becomes necessary to send to a distant cityoftentimes to the manufacturer-for an expert to open the safe. This is often a matter of great inconvenience, inasmuch as valuablepapers are sometimes wanted out of banking hours. With my apparatus these objectionable features are all overco me. Aburglar-alarm check is set upon the sale and the whole control of such apparatus is under the immediate surveillance of the police at the police-station where the clock is located.

Referring to the drawings, C is a time mechanism of the usual construction, having 0n its hour-hand shafts two metallic arma-Kz K', adapted to revolve through the complete circumference of the circletheliirstin twentyfour and the second in forty-eight hours. These metallic arms are connected through the hour-shaft with a battery, BA, by a wire, w w, earthed at E in the police-station. These arms K K2 have each a pair of metallic fingers, jffzfa, which are adapted to bear respectively on therings R3 R? R R, each of which rings is of metal and continuous, except at the insulated points Z Z Z2 Z3, as shown.

The rinus R R are connected b wiresw w to A y o .l 1 i the points 1 3, on which rests a four-point switch, Sw, connected respectively tothe` Y Wires w w', the'former, w, running to the magnet M', located in the clock-frame, and thence to one of the diiierential magnets D M, also located in or near the clock-frame,- and finally to the distant station, to and through the walls of the safe or between thejambs of the door,to

a metallic contactpoint, p, located on the inner face of the door. Bearing against this contact p is a leaf-spring, S2 connected by a spiral retractile spring, s3, to and through the magnet M, and thence to a'resistance, R h, also inside of the safe, finally passing outside of` the safe to the earth, El. The other branch passes from the ring R by the wire w to the lower half of the switch S w, through the lower magnet, M2, located also in the clock-frame, and thence to the lower half of the differential magnet Dl M, ultimately passing tothe earth through a rheostat, Rlzf, and the switch S w to earth at E', all inside of the police-station.

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The wires w2 wi are connected tot-he outer rings, R2 and R3, and then by the arms ff', through K, wire w, and battery BAJO earth. When the four-point switch S w is placed upon the points 2 4, and the arm K2 is attached to the hour-shaft of the clock and revolves once in twenty-four hours, while arm K is attached to a sleeve about said shaft, which is adapted to revolve once in forty-eight hours. A A2 are the armature-levers of the magnets M M2, respectively, and rest, when drawn up against the force of their retractilesprings s sagainst the front stops, ppl. The lever Alz has on its rear side a leaf-spring, Z3, adapted to bear upon the balance-wheel of the clock when the magnets M M2 are both demagnetized. This spring rides back on the face of the balancewheel as the armature falls on its back-stop, and will tend to give the balance-wheel an impetus, and thus set the clock going when said armature is drawn up. Any device commonly used for starting clock mechanism may be used, 'and this feature constitutes no part of myinvention.

A3 is an armature -lever held under the delicate adj ustmentof two equal and opposite spiral springs at a position midway between the poles o1' the magnets D M D2 M, the function of the armaturelever being to close when drawn against either of the contactpoints 5 or 6, by reason of the influence of either' of the magnets D M D2 M, a local battery-circuit, w, through the battery LB and magnets M3, and thus actuate a trembler bell, T B, which automatically opens and closes a shunt about the resistance or rheostat Rfk.

Referring, now, to the apparatus located at the safe shown in Figs. l, 2, 3, and 5, K4 is the combination spindleknob, (see Fig. 3,) and T T T2 are the combinationdisks, G being the gate, H the bolt-locking dog, and D the lug on the inner end of the combination-spindle, for causing the gate to draw the bolt-locking lug, when it is allowed to drop into place, in the notches ofthe disks, in a manner well understood.

L is a spring-lever pivotcd at one end and having a sliding bearing at the other between two rollers Qr lugs in the end of the gate G, as shown in Figs. l, 2, 3. This lever has a bellcrank lever, L', with a retractile spring, Z, and both are held in the upward position (shown in Fig. l) by the hook H on the armature-lever A, when the circuit is closed through the point p, springs s4 s, and magnet M. It is the function of this apparatus (shown in Figs. l, 2, and 3, in detail, and on the right in Fig. 5) to hold the gate G out of the path of the lug D until the circuit is broken through the electro-magnet M.

Vhen the lock is open on its front, as shown in Fig. 1, the circuit may be closed at the point l? by lifting the lever L and gate G, and then placing the hook H of armature-lever A4 behind the arm L. be brought into contact with point P, and the circuit closed through magnet M and battery at distant station. The door of the safe may By this act spring S4 will' then be closed and the bolts turned into locking position. It will be understood, of course, that the ingoing and outgoing wires pass in between the door and the jamb at the hinges. When the lock is in closed form, as shown in Fig. 2, the top being temporarily removed, I extend the lower end of the armature-lever A* through the lock-case, and provide a handle, h, for manipulating it, the hooked end having such a cam shape as will cause it to lift the gate through the agency of lever L and spring L. To operate this form the operator simply carries the handle h tothe left, and thereby lifts the gate and at the same time closes the circuit through the magnet M, as before, at point P.

I will now describe the operation of my improvements. Suppose the safe-door B to be closed and the bolts held in locking position, with the gate G held out of the path of the lng D by reason of the influence of the spring L, levers L', and A4 acted upon by magnet M. Suppose, also, that the clock has been set in motion, as it will be on releasing the balance wheel ou closing the circuit at the point p within the safe, thereby energizing magnet M at the police-station. Under this condition of affairs the circuit from battery BA finds a path in the direction of the arrows, by way of wire w, to arm K2 on the hour-hand of the clock, and thence, by the spring-armfa, to the ring-R, wire w, contact-point l, switch Sw, Wire w, magnet M', Wire w, outside 0f the station, to the bank or safe to be proteeted,where said wire enters between the door and the jamb and passes to the point p, circuit being had through the springs s* and 's3 to the magnet M and rheostat R11, located also within the safe, passing finally outside the safe to the earth at El. This causes the magnet M to draw up its own armature-lever A', and also the armature-lever A2, thus allowing the clock to start. It also energizes the magnet D M and causes its armature A3 to close the local circuit Vt, through the trembler'bell TB and local battery LB, causing the said bell to be actuated by opening and closing a circuit, as shown, through the magnet M3 and about the rheostat Rfk, thus warning the police that the banker has closed his safe. After the clock has run a few minutes, or a sufficient length of time to carry the contact-arm f2 off of the insulated strip Z', the battery B A finds two paths for its current, the first one passing, as before, to the safe at the distant station, and the sec- 0nd, by way of the arm f2, ring o", and Wire w', four-point switch S w, wire w', magnet M2, wire w', differential magnet D2 M, wire w', through a resistance or rheostat, Rli, and switch Sfw to the earth at E, the total resist ance of this circuit from the contactspringfz, through magnets M2 D'z M and rheostat R'h, being exactly equal to that of the other branch circuit. Under this state of affairs D M and D2 M lbeing wound to have equal and opposing influences on the armature A, cause it to take the central position, and thus al TOO IKO

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u and ascertain that all was right.

low the bell TB to cease ringing. The armature A, being `very sensitive to delicate changes in either of the magnets D M or D2 i M, will, on causing anyundue change otresistance in the cireuitrunning to the bank, be withdrawn to one side or the other, and thus close the local bell or alarm circuit and indicate that something is wrong, or that the circuit is being tampered with. As long as the circuit running to the bank is left intact the gate willbe held ont of the pat-h of the tumblers and prevent any tampering with the lock. The clock will continue to run for twenty-fourv hours, at the end of which time the main or line circuit will be automatically broken at the point Z on the ring R', thereby allowing the armature-lever A to fall back; but the `clock will not be stopped until the other branch circuit, 10', is broken by the arm f2, riding on to theinsulated point Z of the ring R. Before this occurs, however, the first contactarlmf, willagain have made contact with the ring R, having passed off its insulated point Z, thus leaving the main circuit in condition to be closed, when the circuit is closed at the pointA p, as has been heretofore disclosed. It will be seen that when the main circuit is open at the safe andthe contactarm f'l on the insulated strip Z' of ring B', andfs is in the position shown in Fig. 4, there is no battery on either branch of the differential eireuit. V3y this arrangementl avoid the waste of battery during the banking hours and leave it wholly under the control of the person at the bank. Of course it will be understood that the circuit-breaking points Z Z f2 Zs may be located at different positionsin the respective circles R R R2 R3, so as to break the circuit at any desired time, and said rings may be adjustable,` if desired, so as tobe set 'either in advance or the rear of the points indicated. The rings R2 R3, together with the arm K and its contact armsff, constitute whatl call the Sunday or holiday arm, and are designed to leave the safe locked a greater length ot' time than usually prevails during the business portion of the week. and rings are used, of course the switch S w is changed from points 1 3 to points 2 4, and the operation is identical with that described as heretofore for the twenty-four-hour system. The rheostat R h should be of such resistance as is known only to the builder of the lock, and should be so placed within the safe as to be inaccessible to persons ordinarily using the safe.

Aswitch, Sw, may be located between the safe and the earth E2, accessible to the cashier at some concealed point wit-hin the bank, by which he may open the circuit out of business hours, but such an action` would ofcourse alarm the police, and it would be necessary before doing this to advise them, in order that they might go with the cashier to the bank; The fourpoint switch Sw must be set by hand from the points 1 3 to the points 2 4 when it is de- When these arms-` of the United States, is`

sired to connect the fortyleight-hour circuit in lien 4of the twenty-four-hour circuit.

If the differential magnet D M and D2 M is sufficiently delicate, itwill of course be sensitive to any inordinate changes in the line w w, so that any tampering therewith would necessarily close the local circuit and ring the bell T B. With this apparatus I locate the time mechanism for the safe at a distant point and provide simple mechanism which cannot readily getout of order, and at the same time leave the safe accessible at any andall hours, provided the police are warned. The clock mechanism and all its immediate connections located at the policestation should be under respectively, but of course it may be arranged ,for any number of hours', such matters being dependent upon the length of time it is de sired to have the safe closed. For banking purposes it would be preferable that the dials should indicate seventeen and forty-one hours,

respectively, so that if the safe is closed at four p. m. on week-days it will bein condition to open at nine a. m. the next morning, or at the same time on Monday if closed through the thirty-tive-lionr rings on Saturday.` And it should be understood that the alarmbell should ring at the predetermined hour of opening the safe, say nine o clock, by reason of the automatical action of the apparatus described, and it should also ring at the time` of` closing the safe, say four oclock, thus giving warning twice a day of the condition ofthe lock, and the police should be instructed that unless this warning comes the bank should 'be visited at once to ascertain the cause ofthe trouble.

impossible for the safe to be tampered with out ot' office hours.

Having thus described my invention, what I claim, and desire to secure by Letters Patent l. The combination of a safelock and electrical connections with a time mechanism located outside of the safe for controlling the voperation of such lock, substantially as described.

2. The combination of a safelock with means for holding the gate out of operative relation with the tumblers, with electrical connections and time mechanism for controlling such means, the tiniemechanism being located wholly without the safe, substantially as described.

3. The combination of a time mechanism located at an outlying station, with an electrical circuit running from said station intoa safe or vault at some distant point through an electro-magnet, also located in the safe, for controlling the operation of the lock, substan tially as described.

4. The combination of a timemechanism With such a system and a course of` Vinstructions rigorously pursued it would be located outside of a safe and having electrical vaults, the combination of a time mechanism connections running to the interior of said to automatically break a protecting-circuit safe, with means forpreventingthewithdrawal leading to a distant station atapredetermined [5 of the bolts until a predetermined time, subtime, with' electrically-control]ed means lo- 5 stantially as described. cated Within a safe or vault at such distant 5. In asystem for the protection of safes and station for controlling the Withdrawal of the Vaults, the combination of a balanced electribolts, substantially as described. cal circuit including,` a time mechanism and an T alarm at one point, with bolt-controlling mech- CHARLES J KINTL ER' 1o anism located inside of a safe or vault at an other point, substantially as described.

Witnesses:

JOHN A. WIEDERSHEIM,

6. ln a system for the protection of safes or] JNO. K. PLITT.

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