US1715382A

US1715382A - Actuating mechanism for fuel automatic elevator doors

Info

Publication number: US1715382A
Application number: US183647A
Authority: US
Inventors: Robert S Peelle
Original assignee: Peelle Co The
Current assignee: Peelle Co
Priority date: 1927-04-14
Filing date: 1927-04-14
Publication date: 1929-06-04
Anticipated expiration: 1946-06-04

Description

- June 4, 1929. R. s. PEELLEI 1,715,382

ACTUATING MECHANISM FOR FULL AUTOMATIC ELEVATOR DOORS Fil pri 1 1927 2 Sheets-Sheet 1 June 4, 1929. s PEELLE 1,715,382

ACTUATING MECHANISM FOR FULL AUTOMATIC ELEVATOR DOORS Filed April 14, 7 2 Shets-Sheet 2 Patented! June 4, 1929.

UNITED STATES ROBERT S. PEELLE, OF NEW YORK, N. Y.,

ASSIGNOR TO THE PEELLE COMPANY, OF

NEW YORK, N. Y., A' CORPORATION OF NEW YORK.

AGTUATING MECHANISM FOR FUEL AUTOMATIC EIlEVATOR DOORS.

Application filed April 14,

My invention relates to actuating mechanisms for full automatic elevator doors, and more particularly to an electrical control system embodying therein mechanisms controllable by the circuit to the micro mechanism commonly used in elevator cars, so that the actuation of said micro mechanism will cause the automatic opening of the door.

In full automatic elevator doors, it is now a common practice to provide, means common to all of the doors in the shaft and actuated from a common source of-power, it being possible to make such means operative only when an elevator car'is at rest at some fioor. When such means is operative in relation to one door in'a shaft, it is inoperative as to all other doors. Hence my present invention does not relate to any particular construction of door actuating means, but merely to the control of the electric motor through which power is derived for said mechanism. 7

Heretofore the power to the electric motor has been controlled by means of push button, or other specially constructed, switches in the elevator car, and the same general arrangement may be used by means of push button controls upon the various floors, providing that the closing of the circuit to the motor results from the concurrent closing of the push button switch and a switch actuated by a shoe or other device upon the car, so as to prevent the opening of any door unless the car is at the fioor of the opening closed thereby,

In view of the above conditions, ll-havc provided an actuating mechanism of the character above referred to, wherein the actuation of the micro mechanism will result in the setting of electrical controls in a manner to cause a full opening movement of a door, it being essential, however, to close the door by means other than said micro mechanism.

Ordinarily, the actuating mechanism will be so constructed as to-permit the opening of the door entirely independently of the micro mechanism, asweil as embodying those characteristics by which thedoor may be closed. While the actuating mechanism of my invention may be used in connection with elevator power controls by which the services of a car operator are dispensed with, nevertheless the construction andarrangementof parts is such that the functioning or" the door actuating mechanism is entirely independent of the car actuating mechanism,

1927. Serial No. 183,647.

except in so far as these mechanisms are dependent upon the location of the car at a particular fioor.

It is essential in an actuating mechanism embodying the invention, that electrical limit stops controlling the application of power to the door, be employed, since it is desirable to automatically interrupt the circuit to the motor with the complete opening or closing of the door, and essential to interrupt the circuit closed as a result of the actuation of the micro. mechanism when the door is fully opened, for reasons which will more fully appear hereinafter.

While the wiring arrangements are simple, the employment of the micro control for automatically opening the door involves the automatic making and breaking of different circuits and electrical condition which will ensure the maintenance of circuits made by one make and break mechanism after said last named mechanism has been actuated, to interrupt the circuit controlled thereby.

In a mechanism embodying my invention, when manually operative switches are used to permit the application of power for either opening or closing the doors, whether such switches be located in the car, or upon the different floors of the building, the electrically actuated circuit controls, energized as a result of the actuation of said manually operative switches, may be made inoperative by the opening of the circuit at said switches. It is obvious, however, that in the circuits controlled by the micro mechanism circuit, means must be provided by which the interruption of said micro circuit will have no eifect upon the other circuits in the actuating mechanism. intact, in the use of the micro mechanism, there is only a'momentary closing of the micro circuit, the actuating mechanism of my invention, however, embodying therein electrically actuated means which will ensure the continuance of the electrical condi tions established by the closing of the micro circuit, untii a door is fully opened.

The invention consists primarily in an actuating mechanism for fuli automatic elevator doors embodying therein in combination with means operative upon the severat ice tea

doors in the shaft by which the opening and source of means controlling the circuit from said source to said motor to cause the opemng of a door, means controlled by the actuation of the micro mechanism control, means actuated by said means controlled by the actuation of the micro mechanism control and operative upon said means, controlling the circuit from said source to said motor, a switch mechanism controllable from the car in circuit with said means controlling the circuit from said source to said motor and operative to permit the closing of said circuit when the car is at a floor, and a limit switch mechanism in circuit with said means controlling the circuit from said source to said motor and operative upon the completion of the opening movement of a door, to open the circuit to saidmotor; and in such other novel arrangement of parts as are hereinafter set forth and described, and more particulaly pointed out in the claims hereto appended.

Referring to the drawings, a g. 1 is an electrical diagram showing th circuits used in an actuating mechanism embodying the invention; v

Fig. 2 is a view of a fragmentary portion of an elevator door installation; and

- Fig. 3 is a plan view below a car illustrating conventionally the arrangement of contact making and breaking devices actuated from the car.

Like letters and like numerals refer to like parts throughout. the several views.

Inthe embodiment of the invention shown in the drawings, I have illustrated its-application to a mechanism in which the power is derived from a three phase electric motor M. The power for the motor is delivered from a suitable source through the lines L, L and L To secure the reversal of the motor, two pole changing switches in the lines L and L are used, the line L leading directly to the third phase-winding of the motor.

The switch indicated at 10 is.a mere service switch controlling the application of power through the lines L, L and L The motor terminal leads are indicated at 11, 12, and 13.

Since the normal condition is one in which the elevator doors of a shaft are all closed,

v I will describe those mechanisms, the actuation of which, with established conditions, result in the opening of some door in a shaft. Arranged between the lines L and L and the motor terminal leads 11 and 12-respectively,

, is a magnetic switch S the magnet of which source to the motor when the contacts thereof are closed.

The magnet 14 of the switch S may be placed in circuit with the source through the lines L and L entirely independently of its contacts 15 to 1,8,the circuit to said magnet 14 being controlled by a'magnetic switch S havinga magnet 19 controlling two movable contact members 20 and 21 co-operating respectively with

fixed contacts

22 and 23. The contacts 20 and 22 are in circuit with the magnet 14, and the

contacts

21 and 23 are in circuit with the magnet 19. The lines D and L are the source of electrical energy for both magnets 14 and 19.

As will fully appear hereinafter, the switch S is included in two circuits, each of which is entirely independent of the circuit to the switch S although parts of the circuit to this switch S are common to both this switch and the switchS Both of these circuits, as well as the circuit to the magnet 14, include therein a limit switch mechanism 24 controllable as the result of theopening movement of a door, and upon the completion of this movement. This limit switch is of the usual or any approved construction, and its mode of operation is old and well known in this art. Sufiice it to say that when a door is closed, the limit switch 24 is closed, but when the door is fully opened, said switch will be opened as the result of the opening movement of the door.

When the limit switch 24 is open, neither the switch S nor S can be actuated.

When the limit switch 24 is closed, both switches S and S may be actuated to apply power to the motor M subjectto a further ,SWitchcontrol as to the switch S operable from a car when the car is at rest or adjacent any floor of a building. This supplemental control means comprises a switch mechanism 25 usually mounted upon the rail structure of the elevator doors, one such switch being located at each floor of the building. Any of said switches may close the circuit to the switch S through the limit switch mechanism 24 and the contacts 20-22 of the magnetic switch S Arranged in circuit with the lines L--L is a-magnetic switch mechanism S having a movable contact member 26 and a-fixed contact 27. The magnet 28 of this switch will be energized as a result of the actuation of the micro mechanism operative upon the elevatorbar, so that this mechanism in addition to the desired function of bringing a car to a substantially exact level with the floor of a building, may be utilized for automatically openin the elevator door while the elevator is thus eing levelled.

Since the construction and mode of op-- eration of the micro mechanism is well known in the elevator'car art, and since the operation of this mechanism in detail has nothing to do with the opening of the elevator door,

a showing of the mechanism is not made, and

a description thereof is not necessary. The

mechanisms heretofore described all have to with the line L through the lead 29, and

the contact 18 is in electrical connection with the line L through the lead 30; The connections between the

contacts

15 and 16 and the terminal leads 11 and 12 are through the

leads

31 and 32. As heretofore stated, there is a direct connection between the motor terminal lead 13 and the line L One of the contacts of the limit switch mechanism is in connection with the line I? through the leads 30-33, and the other spaced contact thereof is in connection with the magnets 14 and 19 respectively through the lead 34. The movable member of the limit switch mechanism is a bridge contact closing the circuit across the

lines

33 and 34.

The magnet 14 of the switch S is connected with the line L through the lead 35, i -.the contacts 22-20, the lead 36, the terminals 37-38 of the switch25, the movable contact member of which is a bridge contact across the leads 37-38 and the leads 39-40 and 41.

The magnet 28 is energized simultaneous 1y with the closing of the circuit of the micro.

mechanism through the

leads

42 and 43 in any desired manner. The contact 26 is connected with th'eline L through the Peads 44-45-41, which last two leads also place the contact member 21 in'connection with the line L The contact 27 -is connected With the magnet 19 through the lead 46, and this magnet 19 is also. connected with the contact 23 through the lead 47 As a result of the wiring above described,

- the magnet 19 of the switch S may be placed in a. closed circuit from the lines L and lb through the switch S The magnet 19 of the switch S when energized, will not only place in circuit with the lines L and L but will establish a circuit including itself so that with the breaking of the circuit at the

switch

26 and 27, its magnet 19 will continue to be energized from the source, so as to maintain a closed circuit including itself and the switch S as long as the limit switch 24 and the floor switch 25 remain closed.

The arrangement heretofore described, re-' .lates solely to the control of the door actuused, but while the circuit is-closedat the switch 25 by reason of the location of a car at a fioor, nevertheless no circuit will be closed by thisswitch in the absence of an actuation of the switch S To permit the control of a door from an elevator car, I provide a manually operative switch mechanism in the car containing two

contacts

48 and 49, bridged'by a movable contact 50. The contact 48 is in electrical connection with the magnet 14, through a lead 51, connected with the lead 35, and the contact 49 is in-electrical connection through the lead 52 with the-lead 40.

When floor switches are to be used, I run three lines of wire through. the shaft, two of which, 53 and 54, are in electrical connection respectively with the

leads

51 and 40.

Since the third wire has to do with the circuits for closing the door, such will be referred to'hereina-fter.

The wire 54 is connected through a lead 55 with one fixed contact of a switch mecha-' -'nism' 56, having a movable bridge contact 57.

The other fixed contact of this switch mechanism is connected by the lead 58 with one fixed contact 59 of a switch mechanism upon a floor, having another fixed contact 60 connected by the lead 61 with the wire 53. A movable contact 62 is provided for closing the circuit through the switch mechanism 56 across the

line

53 and 54% The switch 56 is adapted. to be actuated by nor any floor switch closes a circuit direct to the motor M, but acts to cause the magnet 14 of the switch S to be energized. Hence power will. be applied to the motor M only so long as the car switch or the floor switch is kept closed. 1

The micro mechanism and the parts controlled thereby have no function whatever in closing the door. This maybe done man- I ually, or in any other desired manner, al-

though preferably I provide in the actuating I mechanism of my invention, an electrical control mechanism for changing the polarity of two lines running to the motor M for the purpose of imparting a reverse rotation to this motor. The circuits to this mechanism may be controlled by a car switch, orfby afloor switch, as desired.

The third line 63 running through the shaft, and a third lead 64, running to the car switch, are a part o f the door closing circuits;

The line" 63 is electrically connected with the lead Controlling the lines L and L is a switch of flexible connections mechanism S containing a magnet operative upon two movable contacts 66 and 67, the first of which may be connected with the line L through a fixed contact 68, and the latter of which may be connected to the line L through a fixed contact 69. The com tacts 66 and 67 are in electrical connection with the

motor terminals

12 and 11 respectively. One terminal of the magnet 65 is the fixed contact member 49, is a movable bridge contact member 74.

The wire 63 is connected with a fixed con-.

tact member 7 5 of a floor switch, co-operating with which and the contact member 59 of the floor switch, is a movable contact member 76.

At 77 I have shown conventionally, a control mechanism forithe circuit to the micro mechanism and for actuating the switch S It will be understood that the shaft wires 53, '54 and 63 have a plurality of shaft switches 56 and floor controls connected in parallel with relation to each other, and that there are a plurality of contacts 25, also in parallel, one at each floor. There is, however, but one pair of limit switches, 24.71.

While the power control mechanism heretofore described may be used in connection 'with any desired mechanical devices-for imparting movement to, or permitting movement of, the doors in a shaft, I have shown in Fig. 2, a special construction of actuating mechanism, omitting therefrom, however, all of the electrical features of the device excepting the various shaft and limit switches, and the motor.

In the actuating mechanism shown in Fig.

2, doors composed of two sections having simultaneous opposite vertical movement are illustrated, the upper section of each door being indicated at 78, and the lower section at 79. This lower section is ordinarily overweighted as compared with the upper section. The door section 79 is provided with a hanger bar 80, and is acted upon by any desired form of locking, mechanism, such as the lockbars 81 pivotedto the rail structure and engageable with the hanger bar 80.

Extending throughout the height of the shaft adjacent the various doors therein, are

actuating cables or

rods

82 and 83, having

stop members

84 and 85 thereon respectively,-

engageable with brackets, not shown, upon the hanger bars of the respective doors. The doors of each section are connected by means passing over sheaves as shown at 86.

The ends of the cables or rods 8283 are flexible, one of which flexible portions passes about guide pulleys 87 and-88 to a friction device consisting of a pinch groove pulley 89, and from this pulley about a guide sheave 90 to a counterweight 91. The flexible end of the other cable or red passes about a guide pulley 92 to a friction device or pinch groove pulley 93, about a guide pulley 94 to the counterweight 91. This counterweight is guided in its movement by suitable supports 95 and carries a member 96 co-operating with the

limit stop mechanisms

24 and 71 respectively. The friction device is driven from the motor M by any desired mechanism 97.

It is customary to provide elevator doors of the general type herein shown with stops 98 secured to the'rail structure in engageable relation with the hanger bar of a door, so as to check opening movement of the door with the top bar structure thereof in a position to bring its upper face substantially flush with the sill of a door opening.

In Fig. 1 of the drawings, there is shown at 99 a conventional spark blow out device in connection with the fixed contact 68, and each other fixed contact co-operating with the movable contacts of the various magnetic switches is also provided with such a spark blow out device. This, however, is no part of the invention.

The details of the above door actuating construction, slippage will occur between the flexible portion of the cables or rods and the either side of the friction device are relieved from the stresses thereon.

The operation of the herein described actuating mechanism is substantially as follows i Under normal conditions the switch 10 will be closed and the various magnetic switches S S S S, will be opened. All the switches in the shaft, as well as all floor switches and friction device, when the cables or rods upon the ear switch, will be opened. The upper limit switch 24 will be closed, and the lower limit switch '71 will be opened. So long as the shaft switches are all open, no power can be applied to the motor M, and none of the mag-" netic switches can be actuated. When a car, however, reaches any particular floor in the shaft, the door-being closed, all circuits passing through thelimit switch 24 maybe closed to efiectthe opening of the door at that floor. In describing the operation of the device, it will be assumed that the switches 25 and 57 are both closed as the result of'the stoppage of the car and the automatic or the mechanical actuation of thesetwo switches.

If the opening of the door is to be effected as the result ofth'e actuation of the micro mechanism, the operation will be as follows,

it being understood that the locking 'mechanism will ordinarilylbe released by the same mechanism which closes the

switches

25 and 56. Immediately upon the actuation of the micro mechanism the magnet 28 of the switch S will be energized by the micro circuit, The traction of this magnet 28 will move the contact member 26 into engagement with the fixed contact 27 closing the circuit from the line L through the

leads

30 and 33, limit stop switch 24, lead 34, magnet 19 and lead 46, thus energizing the magnet 19 of the switch S This circuit will be only momentarily closed, and immediately with the interruption of the micro circuit, the de-energizing of the magnet 28 will permit the contact 26 to move out of engagement with the fixed contact 27, thus interrupting the circuit.

With the energizing of the magnet 19, however, its traction will move both movable contact members 20 and 21 and engage them respectively with the fixed

contact members

22 and 23, thus setting up two distinct circuits. The first of these circuits will be from the line L through the

leads

30 and 33,

through the limit stop switch 24, lead 34 to the magnet 19, through the lead 47 to the fixed contact 23 and through the movable contact 21 through the leads 45 and 41 to the line L This will prevent the de-energizing of the magnet 19 of the switch S as the result of the breaking of the micro circuit at the switch S The second circuit established by the energizing of the circuit 19 will be from the line L through the leads 30 to 33, limit stop switch 24', lead 34, through the magnet 14 of the switch S through the lead 35 to the fixed contact member 22 to the movable contact member 20, through the lead 36 and 37 to the fixed switch 25 from this switch through the leads 38, 39, 40 and 41 to the line L The closingof this circuit will energize the magnet 14 whose traction will simultaneously move both movable contacts 15 and 16 and engage them with the fixed contacts 17 and 18 closing a circuit from the line L through the lead 30, fixed contact 18, movable contact 16, and lead 32 to the motor terminal lead 12, and from said motor terminal back through the lead 11, lead 31, movable contact '15, fixed contact 17 and lead 29 to the line L It will be noted that'the circuits for energizing the magnets 19 and 14 must be closed through the limit switch 24, and that the energizing of the magnet 14 can occur only when the switch 25 is closed. As a consequence? the duration of the operation of the motorM will be controlled by the opening movement of the door, since this movement in turn controls the travel of the weight 91 and the member 96 thereon which co-operates with said limit stop switch 24.

When said limit switch 24 is opened, the circuit to both magnets 19 and 14 will be opened, thus de-energizing both of these magnets and permitting movement of the contacts and 16 resulting in the interruption of the circuit to the motor. The de-energizing of the magnet 19 will also result in the move-.

ment of the contacts 20 and 21 out of engagement with the

contacts

22 and 23, but this is merely to restore the parts of the switch S to normal inoperative position.

If the micro mechanism is not to be utilized for opening the door, the door may be opened by means of the car switch mechanism or the hall switch mechanism at the floor at which the car is situated.

If the door should be opened from the car, the

contact members

48 and 49 will be bridged by the movable contact member 50. This will close the circuit from the line L through the leads -33, limit switch 24, lead-34 through the magnet 14, lead 35 to the lead 51, across the

contacts

48 and 49 to the leads 52, and 41 to the line L This will energize the, magnet 14 and close the circuit through the

contacts

15, 16, 17 and 18 in the mannerabove described, which circuit will be automatically interrupted by the limit switch 24 in the manner heretofore described and with the same results as to the interruption of the circuit to the motor. Since an operator would not attempt to open the door until a car had been stopped, the circuit controlled from the car does not go through the shaft switch 56.

If it be desired to open the door from any floor, the circuit is closed across the

contacts

59 and 60 of the switch mechanism 56, the circuit established being the same in other respects as when using the car switch. The

shaft switch 56 is used in. this connection because of the likelihood of the floor switch b ing actuated before a car has reached a floor at which it is located, under which condition the switch 56 will prevent application of power to the motor until the car reaches that floor. In actual practice a fixed actuation shoe indicated at 100, Fig. 3, of the drawin s, is used to actuate the shaft switch 56, an a receding shoe 101 is used in connection with the micro mechanism of the car, for actuating the switch 25. It will be noted that when using a manual control, either upon the car. or upon a floor, it is necessary for the user to keep the switch closed by continuing pressure upon the switch mechanisms in the car or at the floor, no continuity in the applicationof power being provided for where these switches are used. Where the micro mechait to follow the cables or rods and to raise the nism control is used, however, it is to be noted that there must be a full opening of the door before power to the motor can be shut off.

When it is desired to close a door, this can be done only by means of the car switch or the floor switch. When the car switch is used, the circuit is closed by bridging the contacts 49 and 7 3 with'the movable contacts 74. This will make a circuit from the line L through the

leads

30, 33 and 72 to the limit switch mechanism 71 through the lead 70, magnet 65, lead 64 to the contact'7 3, across the line to the contact 49 to the

leads

52, 40 and 41 to the line L This will energize the magnet 65, the traction of which will move the contacts 66 and 67 into engagement with the contact 68 and 69, thus .closing the circuit from the line L to the motor terminal lead 11, and from the line L to the motor terminal lead 12. With the interruption of the circuit at the car switch, the magnet 65 will be deenergized and the contacts 66-67 will be spring pressed out of engagement with the contacts 6869, and thus interrupt the circuit tothe motor.

If the door is to be closed from-the hall switch, the bridge contact member 76 will be engaged with the fixed

contacts

59 and 75, thus closing the circuit through the shaft switch 56, leads 54: and 58 to the

leads

64 and 40, establishing the identical circuit beyond this which is established by the closing of the

contacts

73, 49 and 74 in the car switch. The interruption of the circuit at the hall switch will have exactly the same effect as the interruption of the car switch.

As in all limit switch constructions, the initial movement of the door in either direc tion will result in the closing of both the upper and the lower limit switches so that the car may stopped at any point and its movement reversed, excepting when the micro mechanism is used, with which there must be a full opening of the door. Since no danger is attendant upon the opening of the door, thispractice is with-out likelihood of injury to the user of an elevator car. The closing of the door, however, is always under the control of the operator.

The opening of a door results from a lowering of the cables or rods 82-83, the overweight of the lower door section 79 causing application of power to the motor, the show:

ing in Fig. 2 of the drawings being merely as "an illustration of one embodiment of such mechanisms.

It is apparent that the hall switches, and the car switch may be selectively used in an installation, or both included therein. While in most installationsf: however, the hall switches are dispensed with, they are indispensable with elevator installations in which means are provided for the operation of the car solely from different fioo'rs of the build- %[he controls heretofore described, are very simple in their construction and arrangement, and the drawings presenta condition which gives highly satisfactory results, notwithstanding the simplicity. It is not desired, however, to limit the invention to the exact arrangement shown, since it is apparent that such may be varied while still preserving all the essential features of the invention.

Having described the invention, what I claim as new and desire to haveprotected by Letters Patent, is

1. Anactuating mechanism for full automatic elevator doors embodying therein in combination with means operative upon several doors in the shaft by which the opening and closing of the doors may be effected, electric motor driven means operative thereon, elevator equipment including a control for a micro mechanism circuit, and an electrical source of means controlling the circuit from said source to said motor to cause the opening of a door, means controlled by the actuation of the micro mechanism control, means actuated by said means controlled by the actuation of the micro mechanism control and operative upon said means, controlling the circuit from said source to said motor, a switch mechanism controllable from the car in circuit with said means controlling the circuit from said source to said motor and operative to permit the closing of said circuit when the car is at a floor, and a limit switch mechanism in circuit with said means controlling-the circuit from. said source to said motor and operative upon the completion of the opening movement of a door, to open the circuit to said motor. 1

2. An actuating mechanism for full automatic elevator doors, embodying therein the combination with means operative upon the several doors in a shaft by which the opening and closing of any door may be effected, electric motor driven means operative thereon, elevator equipment including a control for a micro mechanism circuit and an electrical source, of a magnetic switch controlling a circuit from said source to said motor to cause the opening of a door, a magnetic switch controlled by the micro circuit and controlling a circuit from'said source, a magnetic switch in said circuit controlled by the magnetic switch in the micro circuit, and controlling circuits from said source to itself and to the magnet of said first named magnetic switch respectively, a switch mechanism controllable from the car in circuit with said first named and said last named magnetic switches respectively, and operatlve to permit the closing of said circuit when a car is at a floor, and means simultaneously interrupting the circuit to said first named and said last named magnetic switches upon 'the completion of the opening movement of the door.

3. An actuating mechanism for full automatic elevator doors, embodying therein the combination with means operative upon the several doors in a shaft by which the opening and closing of any door may be effected, electric motor driven means operative thereon, elevator equipment including a control for a micro mechanism control and an electrical source, of .a magnetic switch controlling a circuit from said source to said motor to cause the opening of a door, a magnetic switch controlled by the micro circuit and controlling a circuit from said source, a magnetic switch in said circuit controlled by the magnetic switch inithe micro circuit, and controlling circuits from said source to itself and to the magnet of said first named magnetic switch respectively, a switch mechanism controllable from the car in circuit with said first named and said last named magnetic switches respectively, and operative to permit the closing of said circuit when a car is at a floor, and a limit switch mechanism in circuit with said source, said first named, and said last named magnetic switches respectively, and operative upon the completion of. the opening of the door to opensaid circuits and cause the opening of the circuit to said motor.

4. An actuating mechanism for full auto matic elevator doors embodying therein in combination with means operative upon several doors in the shaft by which the opening and closing of the doors may be effected,

electric motor driven means operative thereon, elevator equipment including a control for a micro mechanism circuit, and an electrical source of means controlling the circuit from said source to said motor to cause the opening of a door, means controlled by the actuation of the micro mechanism control, means actuated by saidv means controlled by the actuation of the micro mechanism control and operative upon said means controlling the circuit from said source to said motor, a switch mechanism controllable from the car in circuit with said means controlling the circuit from said source tosaid motor and operative topermit the closing of said circuit when the car is at a floor, a limit switch mechanism in circuit with said means controlling the circuit from said source to said motor and operative uponthe .comple' tion of the opening movement of a door, to open the circuit to said motor, and a switch mechanism in the elevator car in circuit with said limit switch mechanism and operative upon said means controlling the circuit from said source to said motor, whereby the circuit to the motor may be controlled independently of said micro mechanism control.

5, An actuating mechanism for full automatic elevator doors embodying therein in combination with means operative upon several doors in the shaft by which the opening and closing of the doors may be effected, electric motor driven means operative thereon, elevator equipment including a control for a micro mechanism circuit, and an electrical source of means controlling the circuit from said source to said motor to cause the opening of a door, means controlled by the actuation of the micro mechanism control, means actuated by said means controlled by the actuation of the micro mechanism control and operative upon said means controlling the cir cuit from said source to said motor, a switch mechanism controllable from the car in circuit with said means controlling the circuit from said source to said motor and operative to permit the closing of said circuit when the car is at a floor, a limit switch mechanism in circuit with said means controlling the circuit from said source to said motor and operative upon the completion of the opening movement of a door, to open the circuit to said motor, a switch located upon the floor of a building in circuit with said means controlling the circuit from said source to said motor and said limit switch, and a switch mechanism controllable from a car in said circuit, whereby the circuit to the motor may be closed independently of said-micro mechanism control. v I

6. An actuating mechanism for full automatic elevator. doors embodying therein in combination with means operative upon several doors in the shaft by which the opening and closing of the doors may be effected, electric motor driven means operative thereon, elevator equipment including a control for a micro mechanism circuit, and an electrical source of means controlling the circuit from said source to said motor to cause the opening of a door, means controlled by the actuation of the micro mechanism control, means actuated by said means controlled by the actuation of the micro mechanism control and operative upon said means controlling the vator car in circuit with said limit switch mechanismand operative upon said means controlling the circuit from said source tosaid motor and said limit switch, and a switch mechanism controllable from a car in said circuit, whereby the circuit to the motor may be closed independently of said micro mechanism control. p

7. An actuating mechanlsm for full automatic elevator doors, embodying therein the combination with means" operative upon the several doors in a shaft by which the opening and closing of any door maybe effected, electric motor driven means operative thereon, elevator equipment including a control for a micro mechanism circuit and an electrical source, of a magnetic switch controlling a circuit from said source to said motor to cause the opening of a door, a magnetic switch controlled by the microcircuit, and controlling a circuit from said source, a magnetic switch in said circuit controlled by the magnetic switch in the micro circuit, and controlling circuits from said source to itself and to the magnet of said first named magnetic switch respectively, a switch mechanism controllable from the car in circuit with said *first named and said last named magnetic switches respectively, and operative to permit .the closing of said circuit when a car is at a named magnetic switches respectively, andoperative upon the completion of the opening of the door to open said circuits and cause the opening of the circuit to said motor, and a switch mechanism in the elevator car in circuit with said limit switch mechanism and operative upon said first named means, whereby the circuit to the motor may be controlled independently of said micro mechanism control.

8. An actuating mechanism for full automatic elevator doors, embodying therein the combination with means operative upon the several doors in a shaft by which the opening and closing of any ,door may be efiected, electric motor driven means operative thereon, elevator equipment including control for a micro mechanism circuit and an electrical source, of a magnetic switch controlling a circuit from said source to said motor to cause the opening of a door, a magnetic switch controlled by the micro circuit and controlling a circuit from said source, a magnetic switch in said circuit controlled by the magnetic switchin the micro circuit, and controlling circuits from said source to itself and to the magnet of said first named magnetic switch respectively, a switchmechanism controllable from the car in-circuit with said first named switch mechanism in circuit with said source,

said firstinamed, and said last named magnetic switches respectively, and operative upon the completion of the opening of the door to open said circuits and cause the opening of the circuit to said motor, a switch located upon the floor of a building in circuit with said first named magnetic switch and said limit switch, and a switch mechanism controllable from a car in said circut, whereby the circuit to the motor may be closed independently of said micro mechanism control.

9. An actuating mechanism for full automatic elevator doors, embodying therein the combination with means operative upon the several doors in a shaft by which the opening and closing of any door may be effected, electric motor driven means operative thereon, elevator equipment includinga control for a micro mechanism circuit and an electrical source, of a magnetic switch controlling a circuit from said source to said motor to cause the opening of a door, a magnetic switch controlled by the micro circuit, and controlling a circuit from saidsource, a magnetic switch in said circuit controlled by the magnetic switch in the micro circuit, and controlling circuits from said source to itself and to the magnet of said first named magnetic switch respectively, a switch mechanism controllable from the car in circuit with said first named and said last named magnetic switches respectively, and operative to permit the closing of said circuit when a car is at a floor, alimit switch mechanism in circuit with said source, said first named, and said last named magnetic switches respectively, and operative upon the completion of the opening of the door to open said circuits and cause the opening of the circuit to said motor, a switch mech-' anism in the elevator car in circuit with said limit switch mechanism and operative upon said first named magnetic switch, whereby the circuit to the motor may be controlled independently of said micro mechanism, and a switch located upon the floor of a buildingin circuit with said first named magnetic switch and said limit switch.

10. An actuating mechanism for full auto-. matic elevator doors embodying therein in' combination with means operative upon several doors in the shaft by which the opening and closing of the doors may be effected, elecerative upon said means controlling the circuit from said source to said motor, a switch mechanism controllable from the car in circuit with said means controlling the circuit from said source to said motor and operative to permit the closing of said circuit when the car is at a floor,'a limit switch mechanism in circuit with said means controlling the circuit from said source to said motor and oper ative upon the V completion of the opening movement of a door, to open the circuit to said motor, means whereby a circuit to said motor may-be closed to actuate the motor to close a door, a switch mechanism in the car in circuit therewith, and a limit switch mechanism also arranged in said circuit.

11. An actuating mechanism for full automatic elevator doors embodying therein in combination with means operative upon several doors in the shaft by which the opening and closing of the doors may be effected, electric motor driven means operative thereon, elevator equipment including a control for a micro mechanism circuit, and an electrical source of means controlling the circuit from said source to said motor to cause the opening of a door, means controlled by the actuation of the micro mechanism control, means actuated by said means controlled by the actuation of the micro mechanism control and operative upon said means, controlling the circuit from said source to said motor, a switch mechanism controllable from the car in cir cuit with said means controlling the circuit from said source to said motor and operative to permit the closing of said circuit when the car is at a floor, a limit switch mechanism in circuit with said means controlling the circuit from said source to said motor and operat've upon the completion of the opening movement of a door, to open the circuit to said motor, means whereby a circuit to said motor may be closed to actuate the motor to close a door, a switch located upon the floor of a building in circuit with said last named means, a limit switch also in said circuit, and a switch mechanism controllable from the car also arranged in said circuit, whereby the circuit to the motor may be closed from the floor of a building.

12. An actuating mechanism for full automatic elevator doors embodying therein in combination with means operative upon several doors in the shaft by which the opening and closing of the doors may be eifected, electric motor driven means operative thereon, elevator equipment including a control for a micro mechanism circuit, and an electrical source of means controlling the circuit from said source to said motor to cause the opening of a door, means controlled by the actuation of the micro mechanism control, means actuated by said means controlled by the actuation of the micro mechanism control and operative upon said means, controlhng the circuit from said source to said motor, a switch mechanism controllable from the car in circuit with said means controlling the circuit from said source to said motor and operative to permit the closing of said circuit when the car is at a floor, a limit switch mechanism in circuit with said means controlling the circuit from said source to said motor and operative upon the completion of the opening movement of a door, to open the circuit to said motor, means whereby a circuit to said motor may be closed to actuate the motor to close a door, a switch mechanism in the car in circuit therewith, a limit switch mechanism also arranged in said circuit, a switch located upon the floor of a building in the circuit to said last named means and said last named limit switch, and a switch mechanism controllable from the car also arranged in said circuit, whereby the circuit to the motor may be closed from the floor of a building.

13. An actuating mechanism for full automatic elevator doors, embodying therein the combination with means operative upon the several doors in a shaft by which the opening and closing of any door may be effected, electric motor driven means operative thereon, elevator equipment including a control for a micro mechanism circuit and an electrical source, of a magnetic switch controlling a circuit from said source to said motor to cause the opening of a door, a magnetic switch controlled by the micro circuit and controlling a circuit from said source, a magnetic switch in said circuit controlled by the magnetic switch in the micro circuit, and controlling circuits from said source to itself and to the magnet of said first named magnetic switch respectively, a switch mechanism controllable from the car in circuit with said first named and said last named magnetic switches respectively, and operative to permit the closing of said circuit when a car is at a floor, a limit switch mechanism in circuit with said source, said first named, and said last named magnetic switches respectively, and operative upon the completion of the opening of the door to open said circuits and cause the opening of the circuit to said motor, a magnetic switch for controlling a circuit from said source to said motor to impart a reverse rotation thereto as compared with the circuit established by said first named magnetic switch, a switch mechanism in the car in circuit with the magnet of said magnetic switch operable to impart a reverse rotation to said motor, and a limit switch mechanism arranged in said circuit. 7

14. An actuating mechanism for full automatic elevator doors, embodying therein the combination with means operative upon the several doors in a shaft by which the opening and closing of any door may be effected, electric motor driven means operative thereon, elevator equipment including a control for a micro mechanism circuit and an electrical source, of a magnetic switch controlling a circuit from said source to said motor to cause the opening of a'door, a magnetic switch con trolled by the micro circuit and controlling a circuit from said source, a magnetic switch in said circuit controlled by the magnetic switch in the micro circuit, and controlling circuits from said source to itself and to the magnet of said first named magnetic switch respectively, a switch mechanism controllable from the car in circuit with said first named and said last named magnetic switches respectively, and operative to permit the closing of said circuit when a car is at a floor, a limit switch .mechanism in circuit with said source,-said first named, and said last named magnetic g switches respectively, and operative upon the completion of the opening of the door to open said circuits and cause the opening of the circuit to said motor, a magnetic switch for controlling a circuit from said source to said motor to impart a reverse rotation thereto as compared with the circuit established by said first named magnetic switch, a switch located upon the floor of a building in circuit with the magnet of said magnetic switch operable to impart a reverse rotation to said motor, a limit switch mechanism arranged in said circuit, and a switch mechanism controllable from a car also arranged in said circuit, whereby the circuit to the motor may be closed from the floor of a building when a car is at a floor.

15. An actuating mechanism for full automatic elevator doors, embodying therein the combination with means'operative upon the several doors ina shaft by whichthe opening and closing of any door maybe efiected, electric motor driven means operative thereon, elevator equipment including a control for a micro mechanism circuit and an electrical source, of a magnetic switch controlling a circuit from said source to said motor to cause the opening of a door, a magnetic switch controlled by the micro circuit and controlling a circuit from said source, a magnetieswitch in said circuit controlled by the magnetic switch in themicro circuit, and controlling circuits from said source to itself and to the mag- 'net of said first named magnetic switch respectively, a switch mechanism controllable from the car in circuit with said first named and said last named magnetic switches respectively, and operative to permit the closing of said circuit when a car is at a floor, a limit switch mechanism in circuit with said source, said first named, and said last named magnetic switches respectively, and operative upon the completion of the opening of the door to open said circuits and cause the opening of the circuit to said motor, a magnetic switch for controlling a circuit from said source to said motor to impart a reverse rotation thereto as compared with the circuit established by said first named magnetic switch, a switch mechanism in the car in circuit with the magnet of said magnetic switch operable to impart a reverse rotation to said motor, a switch located upon the floor of a building in circuit with the magnet of said magnetic switch operable to impart a reverse rotation to said motor, a limit switch mechanism arranged in said circuit, and a switch mechanism controllable from a car also arranged in said circuit, whereby the circuit.to the motor may be closedfrom the floor of a building when a car is at a floor.

In witness whereof I have hereunto afiixed my signature, this 1st day of April, 1927.

ROBERT s. I;EELLE.