US1369094A - Elevator - Google Patents

Elevator Download PDF

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Publication number
US1369094A
US1369094A US139258A US13925816A US1369094A US 1369094 A US1369094 A US 1369094A US 139258 A US139258 A US 139258A US 13925816 A US13925816 A US 13925816A US 1369094 A US1369094 A US 1369094A
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US
United States
Prior art keywords
motor
car
elevator
switch
mains
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US139258A
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English (en)
Inventor
Sr Ernest L Gale
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Otis Elevator Co
Original Assignee
Otis Elevator Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Otis Elevator Co filed Critical Otis Elevator Co
Priority to US139258A priority Critical patent/US1369094A/en
Priority to FR507456A priority patent/FR507456A/fr
Application granted granted Critical
Publication of US1369094A publication Critical patent/US1369094A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B66B1/46—Adaptations of switches or switchgear
    • B66B1/50—Adaptations of switches or switchgear with operating or control mechanisms mounted in the car or cage or in the lift well or hoistway
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B66B1/36—Means for stopping the cars, cages, or skips at predetermined levels

Definitions

  • ERNEST L. GALE, SR, or YONKERS NEW YOEk, AssIoNoR T orIs'ELEvM e COMPANY, or JERSEY crrY, NEW JERSEY, A CORPORATION or NEW JERSEY.
  • My invention relates to elevators, and more particularly to electrical apparatus to operate and control the elevator car.
  • the object of the invention is to provide means automatically to level an elevator car with the desired landing in the event of the car over-running or under-running the land-
  • the invention in general, consists in employing a usual electric hoisting motor, to-
  • the automatic car-leveling apparatus which may be termed supplementary apparatus to control'the elevator motor.
  • Figure 1 illustrates diagrammatically a typical automatic push-button controlled elevator, together with my improved automatic car leveling apparatus
  • Fig. 2 illustrates a modified arrangement of electrical circuits controlled by a Car switch together with the improved automatic car leveling apparatus.
  • the electric hoisting motor M may be connected to the elevator car 0, through any of the well known systems of gearing and roping.
  • the motor illustrated herein is of the compound wound type, it being provided with a series and shunt field winding, S
  • the elements thus far designated are well known and have a well known mode of operation.
  • the supplementary controlling apparatus which in conjunction with certain elements heretofore pointed out, is employed automatically to level the elevator car with a desired landing, it comprises a dynamotor G, of awell known type, combining both motor and generator action, by having'an armature with two separate windings, independent commutators, and one magnetic field winding designated G.
  • the dynamotor is controlled to rotate in one direction only, and forms a supplementary source of supply for the elevator motor M, the generator windin s supply across its brushes 9, 9, a relatively low voltage, say for example or fvolts, and the motor windings of the dynamotor being supplied through the brushes 10, 10,
  • An electro-magnet switch A may in a sense be termed a changeover switch, so called, since for two difl'erent positions which the switch may assume, it connects the elevator motor reversing switch contacts, independentlyavith the high and low voltage supply mains.
  • cams 12 and 13 are adapted to co-act with switches 12', 13, respectively,.these switches controlling electrical connections between the .elevator motor and the low voltage supply circuit, to
  • the car is at rest, level with the second the reversing switches.
  • This-operatlon closes a circuit for the winding 14 of the reversing switch D, as follows: From main, to wire 15, through the door contacts to wire 16, one wlnding of the non-interference magnet 7 to wire 17, winding of protecting magnet 8 to wire 18, pushbutton 4 to wire 60, and thence to reversing switch winding 14 and the line, by way of the relay 6 and floor controller contacts 8.
  • the relay 6 closes its contacts which maintains a circuit for the reversing switch winding 14, when the push-button is released,
  • the reversing switch winding 14 now receiving current, closes its contacts, the change-over switch A remains as shown, and the elevator motor M, field windings S and S, and brake winding 3 are thereby connected to the high voltage mains and
  • the motor circuit may be traced as follows:
  • the elevator car now. descends and brings the switch 13' in range of the cam 13', which closes the said'sw'itch.
  • the switch 13 closes a parallel circuit for the winding 14, this circuit including the winding 11, and being independent of the floor relay and floor controller contacts, the circuit being as follows:
  • the floor controller contacts for each floor may be set relatively with the car leveling cams and switches for each floor, so as to open their contacts directly after the closing of one or the other of the switches 12 and 13' by their respective cams.
  • the reversing switch D is maintained closed during the change-over period, the effect being to keep the shunt field of the elevator motor energized and the brake shoe maintained in its already raised or released position, during the said period.
  • the dynamotor at which time, the first arm'des- 12 coacts with the cam 12, thus closing the switch, which in turn effects the closing of the reversing ,switch U, and raising ofthe change-over switch -A.
  • the dynamotor is put in operation, and the elevator motor'operated in a'reverse direction to that just described,- thereby causing the elevator car to ascend at a slow rate of movement which is maintained until the car is returned level with the floor landing.
  • the switch 12' then rides off the cam 12, and is opened by a spring 12". Opening the switch 12' effects the stopping of the carin the same manner as heretofore described in connection with the switch 13.
  • the essential elements of the push-button paratus operate conjointl to control the elevator car for ascending direction of travel substantially in the same manner as has just been described for the descending directionof travel, these elements furthermore, operating to control the car, in the same manner for b0th,,the car and hallbutton operations. It is thought therefore that a, detailed description for these modes It is preferable, although that the main feed or common wires 31 and 32 leading to the car leveling switches 12',
  • the series of auxiliary contacts 33 controlled by the floor relays 6, 6', 6" makes the car leveling switches 12', 13 ineffective until all the relay contacts are open, the result being to maintain an open circuit in the feed wire 32, until the car is near the particular kind ing at which it is desired to stop.
  • he floor controller switches 8, 8, 8", 8 may be timed or set so as to open in each instance when the car is level withthe land ing, instead of opening when the car is some distance from the landing as in accordance with the timing heretofore described.
  • This arrangement results in the car operating at full or normal speed until it, is, level with the desired stopping point, the floorcontroller switch then opening its contacts and in this manner disconnecting the elevator versing switches D,
  • the car leveling apparatus then operates in the same manner as heretofore described, automatically to return the car at a slow rate of movement, level with the landing.
  • the circuits for the elevator mo- 7 tor controlling apparatus are controlled by means of a switch H, operable manually from the car, instead of by means of the automatic push button system'of circuits as illustrated in Fig. 1.
  • the dynamotor G is controlled by means of the car leveling cams and switches and in conjunction with the car switch system of circuits, automatically to level the elevator car with any landing in the same manner as heretofore described in connection with-the push-button system of circuits.
  • a point of distinction embodied in Fig. 2 .over that illustrated. in Fig. 1, is to close the circuit to the motor windings of the dynamotor whenever the circuit to the elevator motor is closed.
  • the car switch H comprises a pivoted segmental contact 50 controllable by a handle 51.
  • the contact 50 when in a'central position as illustrated, enga as contacts 52, to which are connected a nected ahead of the switch A, to the main.
  • Moving the handle toward the right brings the segment into engagement with a contact 54, closin a circuit to thewinding 14 of the reversing switch D and in this manner the elevator motor .M "is connected to the high voltage mains to operate the car in a I descending direction.
  • Moving the handle to the left brings the segment into engagement with a contact-55, closing a circuit to the winding 14 and in this manner the eleeed wire 53, convator motor M is connected tothe high 'voltis in a central or vertical position.
  • These 1 contacts are included in circuit with a feed wire 58, common to the carleveling switches 12', 13', this wire including the winding 11, which 0 rates the change-over switch A.
  • change-over switch A to connect the elevator motor M with the low voltage supply mains is efiected only when the car switch is in a center or neutral switch 12 or 13 in range of the cam 12 or 13. l
  • the combination with the car, an electric motor to operate the car, a starting resistance in the circuit or the motor armature, a source of current supply for the motor, a supplementary source of current supply means to connect the hoisting motor at starting indeenolentlv with the sources oi supnl to eir u i feet in each instance operation of the car in an ascending or descending direction.
  • an electric elevator the combination with the car, an electric motor to operate the car, a starting resistance in the circuit of the motor armature, a source or" current supply for the motor, means to connect the motor at starting with said source of supply, a supplementarysource of current supply, means to reduce the speed or the motor by connecting it with the supplementary source or current supply, sistance, and means to insert the resistance in the motor circuit whenever in changing over to the supplementary source or supply, the motor generates a voltage that excoeds that of the supplementary source.
  • the combination with the hoisting motor means supplying energy at olifi erent voltages thereto, a resistance, contacts to control the resistance, and a winding connected across the terminals of the motor armature'operable to open the said contacts to insert the resistance in the motor circuit whenever in changing from the higher to the lower voltage supply, the motor generates a voltage that exceeds the voltage of the lower voltage supply.
  • the cor Jination with the car an electric motor crate the car, a starting resistance circuit of the motor armature, independent sources of supply dc aring relatively high and low voltage, a" reversing switch for the motor, and means to co the reversing switch independently said suppl mains, to effect in each in stance operation of the motor from st '9.
  • an electric elevator the comloination with thecar, an electric motor to opcrate the car, mains delivering relatively highand low voltages, a reversing switch for the motor, means controlled from car .to control the reversing switch, automatic means to control the reversing switch independently of the manual means, to eilectoperation of the car, to raise or lower level with a landing, and means controlled by the automatic means to connect the reversvoltage,
  • an electric elevator the combinas tion with the car, an electric motor to operate the car, supply mains from independent sources delivering relatively high and low voltages,- means to connect the motor independentlywith the high and low voltagesupply mains, means to reversethemotor, means operable manually from the car to control the reversing means to efi'ect operation of the motor to raise or lower the car, and means operable automatically to control the first named means to connect the motor with the low voltage mains and efi'ect operation of the car to raise or lower it level with a landin 12.
  • an electric hoisting motor In an eIectricelevator, the combination with the car, an electric hoisting motor, a starting resistance in the circuit of the motor armature, supply mains from an outside source delivering a relatively hi h voltage, a dynamotor to generate a relatively low voltage, and means to connect the hoisting motor independently with the outside and d namoto'rsupply mains.
  • an electric elevator the combination withthe car, an electric hoisting motor, a starting resistance. in the circuit of the motor armature, supply mains from an outside source delivering a relatively high voltage, a dynamotor to generatea relativel low and means to connect the hoisting motor independently with the .high and low voltage sources of suppl to effect operation of themotor to raise or ower the car.
  • an electric elevator the combination with the car, an electric motor to operate the car, supply mains delivering a relatively high voltage, supplementary mains supplying a relatively low voltage nerated by a dynamotor, manually control ed means to connect the electric motor with the high voltage mains and to control the car to ascend or descend, and means comprising a cam and co-acting switch operable automatically t connect the motor independently with the low voltage supply mains and effect operation of the motor to raise or lower the car level with a landing.
  • an electric hoisting motor therefor, relatively high voltage supply mains, relatively low v0 tage supply mains, and means operable automatically by the car over-running or under-running a .desired landing to connect the motor with the low voltage supply mains, and disconnect the motor from the said low voltage mains when the car platform is level with the said landin I k 20.
  • an electric elevator the combination with the car, an electric hoisting: motor therefor, relatively hi h voltage supply mains, relatively low vo tagev supply mains, and means controllable automatically by the car as it approaches a desired landing-to disconnect the motor from the high voltage mains and connect it to the low voltage mains, said means disconnectin the motor from the low volta e mains w en the car platform is level with the landing, and in the event of the car over-running the landing, connecting-the motor to the low volta mains and reversing the motor to bring tfi: car back to a level with the landing.

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  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Elevator Control (AREA)
US139258A 1916-12-28 1916-12-28 Elevator Expired - Lifetime US1369094A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US139258A US1369094A (en) 1916-12-28 1916-12-28 Elevator
FR507456A FR507456A (fr) 1916-12-28 1919-12-17 Perfectionnements aux ascenseurs électriques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US139258A US1369094A (en) 1916-12-28 1916-12-28 Elevator

Publications (1)

Publication Number Publication Date
US1369094A true US1369094A (en) 1921-02-22

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US139258A Expired - Lifetime US1369094A (en) 1916-12-28 1916-12-28 Elevator

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US (1) US1369094A (fr)
FR (1) FR507456A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2691448A (en) * 1949-07-20 1954-10-12 Dudley M Lontz Automatic materials handling system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2691448A (en) * 1949-07-20 1954-10-12 Dudley M Lontz Automatic materials handling system

Also Published As

Publication number Publication date
FR507456A (fr) 1920-09-16

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