US555847A - Timing apparatus - Google Patents

Description

4 T T E K C A D B u G (No Model.)

TIMING APPARATUS.

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Svwewhoz Wvwwzooeo (No Model.) Q I v v I' G. P. BRAG-KETT.

4 Sheets-Sheet 2.

I TIMING APPARATUS. N0. 555 7. Patented Mar.3, 1896.

mmilliiiiiiil 4 sheets -Sheet 3.

(No Modem G. P. BRACKETT. TIMING APPARATUS.

Patented-Mar. 3, 1896.

.. lllllllllll iilllllllllilllllllllllllllfiflflll (No Model.) 4 'Sheets -Sheet 4.

G. P. BRAGKETT. TIMING APPARATUS.

No. 555,847. Patented Mar. E 1896.

a 1, 11,, N I W UDMD a w 6 g Q *Q JOODMW O l OOOIIO Z? 414g M02203; 625W UNITED STATES PATENT OFFICE.

GEORGE FREDERICK BRACKETT, OF JERSEY CITY, NENV JERSEY.

TIMING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 555,847, dated March 3, 1896.

Application filed March 14, 1895. Serial No. 541,776. (No model.)

To all whom it may concern.-

Be it known that I, GEORGE FREDERICK BRACKETT, of Jersey City, county of Hudson, State of New Jersey, have invented certain new and useful Improvements in Timing Apparatus, of which the following is a specification, reference being had to the accompanying drawings.

The object of my invention is to produce apparatus adapted to measure uniform intervals of time for the operation of machinery. Although its employment is not confined to use in connection with the process of preparing asphaltic street mixtures, that is one of the uses to which I propose to apply it, and I shall therefore, for the sake of explanation, briefly describe its application to that process.

Ordinary asphaltic street mixture is composed of sand, limestone-dust, and asphaltic cement, which require to be intimately commingled and incorporated. The most approved means of producing the mixture is by machinery, in the use of which it is essential, in order to insure the best results, that the commingling of the ingredients should be properly timed. In mixing the aforementioned ingredients it is customary to stir the sand and limestone-dust together for about twenty seconds, and afterward to add the asphaltic cement and mix the whole com pound for a minute. Heretofore it has been necessary to depend upon workmen to time the different mixing operations, but this method of timing has proved uncertain and is frequently attended with evil results, owing to the carelessness or mistakes of the operator.

By my invention I provide for the measurement of uniform intervals of time required and for the sounding of a bell-warning at the lapse of each interval. By this means not only is the liability of mistake on the part of the operator who has the work directly in charge almost entirely eliminated, but all the workmen engaged in the operation are equally notified of the time intervals, so that a check is by the use of my invention placed upon the carelessness or inattention of the operator.

In the accompanying drawings, Figure I is a side elevation of my indicator and stop mechanism. Fig. II is a front view thereof.

Fig. III is a view of a clock-starting mechanism detached. Fig. IV is a plan view of a portion of the stop mechanism. Fig. V is a side elevation of sections of conveyer-tracks, showing the electrical wiring of the same. Fig. V1 is a plan view of the same. Fig. VII is a group illustrating side and plan views of one conveyer-track. Fig. VIII is a similar view illustrating another form of track. Fig. IX is a diagrammatical view of the circuits.

Referring to the figures on the drawings, 1 indicates a dial made of suitable insulating materialas, for example, hard rubberthat is adapted to be revolved at any required rate of speed by the shaft 2, which is connected with a suitable time-movement or driving mechanism 3 indicates sockets, located preferably near the edge of the dial-plate.

4 indicates brass or other conductive metal screws set in the face of the dial. The screws and the sockets are arranged close together in pairs, which are located at required distances apart in order to pass a given point at required intervals of time. Each of the screws 4 is connected in circuit by wires 5 secured to the screws on the rear of the dialplate by suitable means, and all of the screws 4 are likewise electrically connected to the case (5 of the clock, as by wires 7, secured to any of the screws 4 at one end, respectively, and at their other ends to similar screws 4 upon a hub 8 on the shaft 2.

9 indicates an electric wire, which connects the case 6 with the relay binding-post 10 and thereby establishes communication between said binding post and each of the screws 4 through the system of wiring just described.

, 11 indicates the base of the relay, and 12 its electromagnet, supported, as usual, upon a bracket 13.

14 indicates the armature vibrating between adjustment-screws 15 and 16 that are carried by a standard 17. The screw 15 has the other end to a stud 22.

connected, as by a wire 23, to the binding post 10, and the standard 17 is connected by a wire 2i to a binding-post 25.

26 indicates a connecting-wire uniting the binding-post to a binding-post 27.

28 indicates another wire connecting the binding-post 10 with the binding-post 29.

The binding-posts 27 and 29 are secured to a base 80 and are in circuit with an electromagnet 31.

32 indicates a lever-armature carried on a standard 33 and under tension of a spring 311 opposed to the force of the magnet 31.

35 indicates set-screws carried upon a standard 3G and between which the armature 32 vibrates. The longer end of the armature 32, opposite the spring 3-1, is provided with a yielding extension or spring extension 37, which, by the vibration of the lever 32, wipes the periphery of the balance-wheel 38, which forms a part of the time-movement, of which the shaft 2 is also a part, and which is not otherwise illustrated in detail. Armature 32 and its connected mechanism I will term start mechanism. The armature 1st is provided with a stop-pin 39 that, under the actuation of the spring 20, is adapted to enter successively at proper intervals the sockets 3. \Vhile in such engagement with one of the sockets the dial-plate 1 is, of course, stationary, and the time-movement is also stationary. lVhile the parts are in this position electric circuit is established from the contact point or screw 16 through the standard 17, wire 2i, binding-post 25, wire 26, binding-post 27, magnet 31, thence from said magnet through the binding-post 20, wire 28, binding-post 10, wire 23, armature 14c and contact-pin 40 in contact with the screw 10, whereupon the armature is attracted by that magnet and assumes the position shown in full lines in Fig. III of the drawings. This represents the starting position before the measurement of an interval of time is begun.

indicates one binding-post, and ii) the other, which establishes communication to line-wires H and +15 and to the electromagnet 12. The wires 1-1 and .45 communicate, re spectively, with insulated contact-plates 16 and 47, which, separated by a strip of insulating material i8 and located on top of a track-beam t0, constitute the terminal section of a trolley-track 50.

51 indicates a metal trolley movable on the track and provided with wheels 52, which, when they ride upon the contact-plates 1b and 17, form electrical contact between them. The trolley carries'a dumping-bucket 53 of any suitable construction and adapted to be operated by any suitable means. The contact-plates 1-6 and 47 are located directly over the mixing-machine, which may be of any ordinary suitable kind, and is not necessary to illustrate. Its location with respect to the mixer is designed to provide for the commencement of the timing interval from the moment at which the dumper arrives above the mixer and its contents are dumped into the same. The mixerbeing in operation when it receives the dump from the bucket 53 that moment of time determines when the mixing operation begins. Since, as above explained, in the manufacture of asphaltic street mixtures there are two sets of ingredients to be mixed separately and during different intervals of time, I provide, as shown in Figs. V and VI, two sets 01' trolley-tracks, the second one being shown clearly in Fig. \"I at 56 indicates the wheels of a second trolley, and 57 the bucket thereof.

58 indicates a bowed spring secured to the side 01 the track and extending yieldingly in the path of the arm 59, which suspends the bucket 57. Vhcn, therefore, the arm 5!) brushes over the spring 58, it forms contact between the track U0 on which the wheels 56 turn and the spring 58, those two parts being electrically connected by branch wires 61 and (32, respectively, with the wires lit and 45. The spring 58 is also located over the mixer, so that the discharge of either of the buckets 53 or 5/ is adapted to begin the operation of the time-movement.

(51:3 indicates suitable electric-bell mechanism that is operatively connected with the wire 0 and through it with each of the screws at on the dial-plate. The different sets of line wires described are assumed to be connected respectively with a source of energy-as, to r example, with a battery which it not deemed necessary to illustrate.

It will thus be seen that the embodiment of my invention, considered as an entirety, embraces three distinct yet somewhat interdependent electric circuits, which for convenience in drawing the claims, I will term, first, the "controllingcircuit, which comp rchends the circuit opened or closed by the trolleys, and which serves when closed to magnctize the electromagnet 12; second, the starting circuit opened or closed by the armature it, the iiiake-and-bi'eak contact being between the point 40 and a screw 16, which circuit con trols the operation of the armature 32, and, third, an alarm-circuit opened or closed by the movement of the dial, the make-andbreak contact-point bein between the stop pin 3.) and any one of the contact-screws l.

The terms employed to designate these eir cuits are appropriate as descriptive of the functions of the mechanisms which are actuated as each of. them is respectively opened or closed.

The operation of my apparatus is asiollows: Supposing the armature it to be in the position shown in full lines in Fig. I, the dialplate being held by the engagement of the stop-pin 3.) with one of the sockets 3 and the movement of the time mechanism thereby arrested. The armature 332 will, as above sug gested, be attracted by the magnet 31, as shown in full lines in Fig. III. Suppose now that either of the trolleys-for example, trolley 51rides upon the contact-plates 46 and 47. Thereupon circuit is made between the wires 44 and 45, the magnet 12 is magnetized and the armature 14: is attracted. By the movement of the armature the pin 39 releases the dial-plate and at the same instant breaks contact between the point 40 and the screw 16, thereby breaking circuit through the m agnet 31 and releasing the armature That armature being released the spring 34: swings it upon its support 33 and brushes the spring 37 against the periphery of the balance-wheel 38, thereby setting the time-movement in motion and causing the dial-plate 1 to rotate in the direction of the arrow shown in Fig. II. After the bucket 53 has been dumped it is promptly returned upon the track 50 and the circuit between the wires 1-1 and 45 is broken. The movement of the dial-plate 1, however, after being once started is independent of such contact and proceeds accordingly. The pin 39 on the armature 14 rubs against the face of the dialplate 1 under the tension of the spring 20, and when it reaches the next adjacent screw-head 40 makes circuit through the base 19 and wire 23 by the binding-post 10 and the wire 9, as in the manner above described, with the bell mechanism 63, which, during the contact of the pin 39 with a screw 4, continues to sound. Immediately beyond the screw 4: is a socket 3, so that as soon as the sound of the bell mechanism ceases the pin 39 drops into a socket 3 and arrests the rotation of the dial until it is liberated by circuit being established in the manner above described between the wires 44 and 45. hen the pin 39 slips into the socket 3, (but not before,) the point &0 again makes contact with the screw 16 and magnetizes the magnet 31, thereby attracting the armature 32 and setting it in position to start the balancewheel when another time interval is to be measured. The spring extension 37 in its backward sweep across the balance -wheel strikes its periphery, but does not in juriously affect it, its strength being very slight, since it is only necessary for it to be stiff enough'to cause the extremely sensitive spring of the wheel to respond to its impulse.

The backward sweep of the flexible exten sion 37 across the balance-wheel cannot start the time-movement, because it is maintained in a fixed position by the engagement of the armature 14 with the dial-plate.

Through the operation of the above described apparatus the working time of the mixer is accurately measured, and the intervals at which the different materials are to be fed to the mixer are announced by the alarmbell.

What I claim is- 1. In timing apparatus, the combination with a time-movement and time-movement stop mechanism, of separate time-movement start mechanism controlled by the stop mech anism and means for actuating the stop mechanism, substantially as specified.

2. In timing apparatus, the combination with a time-movement, of time-movement stop mechanism, and separate time movement start mechanism electrically connected with the time-movement stop mechanism, substantially as specified.

3. In timing apparatus, the combination with a time-movement and time-movement stop mechanism, of time movement start mechanism in electrical connection with the time-movement stop mechanism, and a controlling-circuit controlling the movement of the stop mechanism, substantially as specified.

4. In timing apparatus, the combination with a time-movement and time-movement stop mechanism, of separate dependent timemovement start mechanism, a controlling-circuit controlling the stop mechanism, and a movable conductor designed to make and break the controlling-circuit, substantially as specified.

5. In timing apparatus, the combination with a time-movement and time-movement stop mechanism, of separate time-movement start mechanism in an electric circuit opened or closed by the time-movement stop mechanism, a controlling-circuit controlling the movement of said stop mechanism, and amovable conductor designed to make and break the controlling-circuit, substantially as specified.

6. The combination with a time-movement, of time-movement stop mechanism and separate time -movement start mechanism connected in an electric circuit, said circuit being closed by the operation of the time-movement, substantially as specified.

7. The combination with a time-movement, of time-movement stop mechanism and sepa rate time-movement start mechanism connected in an electric circuit closed by the operation of the time-movement, and a controlling-circuit designed to open the first-named electric circuit, and means for opening or closing the controlling-circuit, substantially as specified.

8. The combination with a time-movement and dial provided with sockets in its face, of an armature provided with a stop-pin designed to enter the sockets, a spring for urging the armature toward the dial, and an electromagnet adapted to actuate the armature in opposition to the spring, substantially as specified.

9. The combination with a time-movement and movable dial, of alarm mechanism and stop mechanism actuated successively by said dial, substantially as specified.

10. The combination with a time-movement and dial, of electrically-connected contactpoints on the dial, a movable conductor, and an electric circuit between the contact-points on the dial and the movable conductor, said electric circuit being closed by the movement oi the dial, and stop mechanism brought into operation by said dial, substantially as specified.

1].. The combination with a time-movement and movable dial, of stop mechanism and alarm mechanism in electric circuit with the stop mechanism, said circuit being closed and said step mechanism being actuated successively by the movement of said dial, substantially as specified.

12. The combination with a time-movement, of time-movement stop mechanism, separate time-movement start mechanism and alarm mechanism actuated, respectively by the operation of the time-movement, substantially as specified.

13. The combination with a time-movement, and time-movement stop mechanism, of ti memovement start mechanism and alarm mechanism electrically connected, respectively with the stop mechanism, said step mechanism being actuated by the operation of the timemovemcnt, substantially as specified.

let. The combination with a time-movement and stop mechanism, of separate start mech anism and alarm mechanism electrically conneeted, respectively with the stop mechanism through a start-circuit and alarm-circuit, said step mechanism being actuated to close said circuits by the operation of the timemovement, and an electromagnet for actuating the stop mechanism to open the start circuit, substantially as specified.

15. The combination with atime-movement and stop mechanism, of separate time-movement start mechanism and alarm mechanism in electrical connection respectively with the stop mechanism through a start-circuit and alarm-circuit, a controllingcircuit controlling the movement of the stop mechanism, and means for opening or closing the controlling-circuit, substantially as specified.

16. The combination with a timemovement, of stop and start mechanism simultai'leously actuated by the time-movement,substantially as specified.

17. The combination with a ti inc-movement and dial, starting mechanism and stopping mechanism in electric circuit, said step mechanism being actuated, and said circuit being simultaneously closed to actuate the starting mechanism by the movement of said dial, substantially as specified.

18. The combination with a time-movement and dial, of starting mechanism in electric circuit, alarm. mechanism in electric circuit, and stop mechanism adapted to stop the movement of the dial and to open or close the start-circuit and alarm-circuit, respectively, substantially as specified.

l 0. The combination with a time-movement and movable dial, of startingmechanism and alarm mechanism in electric circuit, respectively, said circuits being closed by the movement of the dial, substantially as specified.

20. The combination with time-movement and movable dial, of startingmechanism and alarm mechanism in electric circuit, respectively, both circuits being closed by the movement of the dial, the alarm -circuit being opened by the movement of the dial, and means for opening the starting-circuit, substantially as specified.

21. The combination with a time-movement and electrically-controlled starting mechanism and alarm mechanism, of a movable part, as for instance, an armature constituting a part of both the starting-circuit and alarnicircuit, and means for actuating the movable part to open. or close said circuits, substantially as specified.

22. The combination with atime-movement, start and stop mechanism in electric circuit, and a separate circuit controlling the electrical connection between the start and stop mechanism, and means for opening or closing the last-named circuit, substantially as specified.

23. The combination with a time-movement and movable dial, starting mechanism, alarm mechanism, a starting-circuit and an alarmcircuit, of an armature adapted to make and break the start-circuit and alarm-circuit, an eleetromagnet controlling the movement of said armature, a controlling circuit, and means for opening or closing the same, sub stantially as specified.

2i. The combination with a time-mm'ement, its balance-wheel and time-movement stop mechanism, of a movable piece havin a [lexible extension adapted to brush against the periphery of the balanceavheel to start the same, means for actuating the movable piece, and means for retracting the movable piece after the stop mechanism has been actuated to stop the time-movement, substantially as specified.

25. The combination with a timeanovement, its balance-wheel and time-movement stop mechanism, of a spring-actuated armature, a flexible extension thereon adapted to brush against the periphery of the balance-wheel to start the same, and a magnet for retracting the armature, magnetized simultaneously with the actuation of the stop mechanism to stop the time movement, substantially as specified.

20. The combination with a time-movement and movable piece adapted to engage and release the same, of an armature adapted to impart an initial impulse to the balance-Wheel of the time-movement, a magnet in electric circuit with the movable piece, said circn it being adapted to be made and broken by the movement of the said movable piece, substantially as specified.

27. The combination With a time-movement, of an armature adapted to engage and disengage the sa-me, a magnet for actuating the armature, a balance\\'heel-starting armature and magnet, means for making an electric circuit through the last-named magnet and the first-named armature, and make-andbreak contact mechanism in said circuit actuated by the first-named armature, substantially as specified.

28. The combination with a time-movem ent and insulating dial provided with a plurality of contact-points and sockets, of a springactuated piece, as for instance the armature ll in operative relation with the contactpoints upon and the sockets in the dial, and an alarm-circuit in electrical connection with the contact-points and the movable piece, substantially as specified.

29. The combination with a ti inc-movement and dial provided upon its face With a plurality of raised contact-points and sockets, of an armature provided with a stop pin adapted to make and break contact with one of the contact-points and to thereafter enter one of the sockets, substantially as specified.

30. The combination With a time -movement and disk provided with contact-points and sockets, of an armature in operative relation to the contact-points and sockets, an alarmcircuit in electrical connection with the contact-points and armature, a magnet in operative relation with the armature, a controlling-circuit, and means for opening or closing the same, substantially as specified.

31. The combination with a time-movement and dial provided with contact-points and sockets, of an armature in operative relation to the contact-points and sockets, an alarm circuit in electrical connection with the contact-points and armature, a controlling-circuit, and a magnet therein adapted to actuate the armature, a track provided with terminal contact-plates, and a trolley adapted to make and break electrical connection between the plates, substantially as specified.

32. The combination with a time-m ovement and dial provided with contact-points and sockets, of an armature hinged at one end and provided at its opposite end with a stoppin designed by the movement of the dial to make contact with one of the contact-points and to thereafter enter one of the sockets to stop the time-movement, said armature being spring-actuated in one direction, and a controlling-circuit and magnet designed to actuate the armature in opposition to the spring,

means for opening or closing the controllingcircuit, and an alarm-circuit in electrical connection with the contact-points upon the dial and with the armature, substantially as specified.

33. The combinationwith a time-movem ent, start mechanism in operative relation thereto, means for actuating the start mechanism, stop mechanism designed to stop the timemovement, and a magnet in electric circuit designed to retract the starting mechanism, and means for closing said circuit to retract the starting mechanism after the stop mechanism has been actuated to stop the timemovement, substantially as specified.

34:. The combination with a time-movement and its balance-wheel, of an armature provided with a flexible extension in operative proximity to the balance-wheel, a spring for actuating the starting mechanism, and a starting-circuit designed when closed to cause the retraction of the starting mechanism, said circuit being closed by the operation of the time-movement, substantially as specified.

35. The combination with a time-movement, stop mechanism operatively connected therewith, and a spring-actuated armature in operative relation with the time-movement, of a magnet in operative relation with the armature, and a starting-circuit including said magnet, said starting -circuit being closed simultaneously with the actuation of the stop mechanism whereby the time-movement is held stationary while the armature is electrically retracted, substantially as specified.

36. The combination with a time-movement, starting mechanism in operative relation thereto, means for actuating the starting mechanism to start the time-movement, stop mechanism, and a magnet in operative relation with the startin g mechanism and in electric circuit with the stop mechanism, said stop mechanism being designed to close the circuit to retract the starting mechanism while the time-movement is at rest, a controlling-circuit designed to control the movement of the stop mechanism, and means for opening or closing the controlling-circuit, substantially as specified.

3'7 The combination with a time-m ovement and dial provided With sockets, of an armature provided with the stop-pin adapted to enter the sockets, starting mechanism in operative relation with the timemovement, said starting mechanism and armature being in electric circuit, and a controlling-circuit including a magnet adapted to actuate the armature, and means for opening or closing the controlling-circuit, substantially as specified.

38. The combination with atime-movement and dial provided with sockets, of an armature provided with a stop-pin designed to en gage the sockets, starting mechanism in operative relation with the time-movement, means for actuating the starting mechanism to start the time-movement, and a magnet in electric circuit with the armature, said circuit being closed by the movement of the armature when the same is actuated to stop the time-movement, and a magnet and controlling-circuit adapted to actuate the armature, substantially as specified.

39. The combination with a time-movement and dial provided with sockets, of an armature provided with a stop-pin adapted to engage the sockets, a second armature provided with a flexible extension in operative relation With the balance-wheel of the time-movement both of said armatures being spring actuated in one direction and electrically actuated in the opposite direction, substantially as specified.

40. The com bination with a time-inc vement and dial provided with sockets, of an armature provided with a stop-pin adapted to engage the sockets, a second armature in operative relation with the time-movement both of said armatures being spring-actuated in one direction and electrically actuated in the opposite direction, the movement of the firstnamed armature opening or closing the electric circuit controlling the movement of the armature in operative relation with the time movement, substantially as specified.

ii, The combination with atimemovement and dial provided with sockets, of an armature provided with a stop-pin designed to enter the sockets, a second armature provided with a flexible extension in operative relation with thebalance-wheel of the time-movement both of said armatures being spring-actuated in one direction and electrically actuated in the opposite direction, and said armatures being electrically interdependent, substantially as specified.

The combination with a time-movement and dial provided with sockets and contactpoints, of a starting-0ireuit and an alarm-circuit in electric circuit with the contact-points, and an armature provided with a stop-pin adapted to make contact with the contactpoints and to enter the sockets, said armature being designed to open or close the alarm-circuit and starting-circuit, respectively, substantially as specified.

4-2-3. The combination with a time-movement and dial provided with sockets and contactpoints, of an armature provided with a stoppin adapted to make connection with the contact-points and to enter the sockets an alarm-circuit in electrical connection with the contact-points and the armature, starting mechanism in operative relation with the time-moven1ent and in electric circuit with said armature, substantially as specified.

44. The combination with a time-movement and dial provided with sockets and contact points, of an armature provided with a stoppin designed to make contact with the contact-points and to enter the sockets, an alarmcircuit in electrical connection with the contact-points, an armature, and a second armature in operative proximity to the time-movement spring-actuated in one direction, and a magnet in electrical circuit with the firstnamedarmatureadapted to retract the springactuated armature in operative proximity to the time-movement, substantially as specified.

45. The combination with a time-movement and dial provided with contact-points and sockets, of an armature provided with a stoppin adapted to make contact with the contactpoints and to enterthe sockets, an alarmcircuit in electrical connection with the contact-points, an armature, a second armature having a flexible extension in operative prox imity to the balance-wheel of the time-movement, and a magnet adapted to actuate said last-named armature and in electric circuit with the first-named armature, substantially as specified.

4th. The combination with a timemovement and dial provided with contact-points and sockets, of an armature provided with a stoppin adapted to make contact with the cow tact-points and to enter the sockets,an alarmcircuit in electrical connection with the contact-points and with the armature, a second armature provided with a flexible extension in operative proximity to the balance-wheel of the time-movement, a spring for actuating said armature to impart an impetus to said balance-wheel, and a magnet adapted to retract the last-named armature, substantially as specified.

47. The combination with a time-movement and dial provided with contact-points and sockets, of an armature provided with a stoppin adapted to make contact with the contactpoints and to enter the sockets, an alarm-circuit in electrical connection with the contactpoints and with the armature, a spring for actuating the armature in one direction, and a magnet for actuating the armature in opposition to the spring and included in a controlling-circuit, and a second armature provided. with a flexible extension in operative proximity to the balance-wheel of the time-movement, a spring for actuating said armature in one direction, a magnet designed to actuate the last-named armature in opposition to the spring and included in a starting-circuit in electrical connection with the firstnamed armature, substantiall as specified.

-.t8. The combination with a time-movement and dial provided with sockets in its face, of an armature provided with a stop-pin adapted to enter the sockets, and means for holding the armature against the face of the dial during the rotation of the latter whercbythe stoppin is forced to enter the socket the instant the same is broi'lght into position by the movement of the dial, substantially as specified.

-:t9. The combination with a timemoveme nt and dial provided with sockets, of an armature provided with a stop-pin designed to be held against the face of the dial during the rotation of the latter, a spring for holding the armature against the face of the dial and for forcing the stop-pin into the socket, a controlling-circuit including an electromagnct for disengaging the stop-pin from the socket, and means for opening the circuit and for closing the same immediately after the stoppin has been withdrawn from the socket whereby the stop-pin is permitted to rest against the face of the dial during the succeeding operation of the time-movement, substantially as specified.

50. The combination with a time-movement and stop mechanism, of a magnet included in a controlling-circuit and designed to actuate the stop mechanism, and a plurality of separate independent circuit-closing devices in the controlling-circuit either of which may completely close the controlling-circuit, substantially as specified.

51. The combination with a time-movement and dial provided with sockets at varying intervals, of an armature provided with a stoppin designed to, engage the sockets, a controlling-circuit including a magnet designed to actuate the armature, and a plurality of separate circuit-closing devices any of which are capable, independent of any other, of completely closing the controllingcircuit whereby each circuit-closing device may retract the armature from any particular socket or sockets for the purpose specified, substantially as set forth.

52. The combination with a ti inc-movement, stop mechanislnand alarm mechanism, of a magnet and controlling-circuit, and a plurality of circuit-closing devices in the controlling-circuit any one of which may be actuated independent of any other to completely close the controlling-circuit.

The combination with a time-movement stop mechanism and time-movement start mechanism electrically interdependent, of a controllingcircuit designed to make and break electrical connection between the start mechanism, and stop mechanism and aplurality of circuit-closing devices in the controlling-circuit, any one of which devices may be actuated to completely close the controllingcircuit independent of any other of said circuit-closing devices, substantially as specified.

54. The combination with a timemovement, of time-movement stop mechanism, separate time-movement start mechanism and alarm mechanism, said start mechanism and said alarm mechanism being respectively electrically interdependent with the stop mechanism, substantially as specified.

55. The combination with a time-movement, of stop mechanism, separate start mechanism and alarm mechanism, said start mechanism and alarm mechanism being electrically interdependent with the stop mechanism, a controlling-circuit controlling the stop mechanism, and means for opening or closing the controlling-circuit, substantially as specified.

56. The combination with a time-movement and stop mechanism, of separate start mechanism and alarm mechanism electrically interdependent, respectively with the stop mechanism, and a controlling-circuit for controlling the stop mechanism provided with a plurality of circuit-closing devices any one of which may be actuated to completely close the controlling-circuit, substantially as specified.

57. The combination with a time-movement, an insulating rotating disk and contactmaker, of a plurality of contact-points upon the disk electrically connected with each other and with the contact-maker through an electric circuit, substantially as specified.

58. The combination with a rotating disk provided with a plurality of contact-points electricallyconnected with each other, a contact-maker also included in the electric circuit, and mechanism upon the contact-maker and disk adapted to co-operate to stop the movement of the disk, substantially as specified.

59. The combination with a time-movement and stop mechanism, of separate start mechanism electrically interdependent with the stop mechanism, a controlling-circuit controlling the movement of the stop mechanism a plurality of tracks provided with insulated contact-plates within the controlling-circuit, and a trolley designed to make contact between the contact-plates and close the controlling-circuit, substantially as specified.

In testimony of all which I have hereunto subscribed my name.

GEORGE FREDERICK BRACKlllIT.

lVitn esses:

JAMEs WATSON, J. FRED. KELLEY.

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