US404894A - Electrically-controlled engine - Google Patents

Description

(No Model.) 2 Sheets- Sheet 1. J. E. BYRNE. ELEUTRIUALLY CONTROLLED ENGINE.

No. 404,894. Patented June 11, 1889.

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(No Model;) 2 Sheets-Sheet 2. J. E. BYRNE. ELEGTRIQALLY CONTROLLED ENGINE.

Patented June 11, 1889;

N. PETERS. Phnla un UNITED STATES PATENT OFFICE.

JAMES EDIVIN BYRNE, OF BROOKLYN, NEIV YORK.

ELECTRlCALLY-CONTROLLED ENGINE.

SPECIFICATION forming part of Letters Patent NO. 404,894, dated June 11, 1889.

Application filed December 24, 1888. Serial No. 294,564. (No model.)

ward or downward motion as'the two sets of sheaves by the action of the hydraulic engine are separated or drawn together, the action of the engine being controlled by a hydraulic valve operated by a hand-rope passing through the car; and the objects of my invention are, first, to operate said controlling-valve by means of electric power from the car instead of hand-power, and, second, to provide a means of automatically reversing the car-switch when the car attempts to pass the upper or lower limits of its travel. I attain these objects by mechanism illustrated in the accompanying drawings, in which Figure 1, Sheet I, is a perspective view of a well-known form of hydraulic elevating machinery with valve-controlling electric motor and top and bottom automatic stop mechanism applied. Fig. 2, Sheet I, is an elevation of the car with parts broken away, showing double-polarity switch in connection with mechanism for operating it by hand and also by the automatic car electric motor. Fig. 3,

Sheet I, is an end elevation of the car-switch and mechanism for operating it automatically and by hand. Fig. 4, Sheet I, is a vertical section of the top of the hydraulic controllingvalve, showing rack and pinion for moving valves. Fig. 5, Sheet II, is a diagram of the electric wires and their connections detached from the machine.

Similar figures and letters refer to similar parts throughout the several views.

1 is the hydraulic cylinder; 2, the piston rod; 3, the cross-head; 4, the cross-head slides; 5, traveling sheaves carried by the cross-head 3; 6, stationary sheaves carried by the brackets 9, which are fastened to the cylinder-head 7; 8, the hoisting-cable, which is fastened to the lug l0, and passes first around the sheaves 5 and 6 and then leads up to the car 11; 12, standards for supporting the machine; 14, the hydraulic controlling-valve; 13, the cylindersupply; 15, the valve-supply; 16, the valvedischarge.

The electric motor 20 gives motion to the pinion 21, which is fastened to the automatic shaft 22, and in turn gives, motion to the spurgear 18, which is fastened to the pinion-shaft 17. The pinion 19, which is fastened to the shaft 17, gives motion to the rack 23, with which it meshes, and this in turn gives motion to the valve-stem 24, the rack being guided by the roller 25, carried on the shaft 26. The motor 20 thus operates the hydraulic valve, admitting water through the pipes 15 and 13 to the cylinder or discharging it through the pipes 13 and 16.

On the bracket-face 27 are located the machine top and bottom automatic stop contactpoints 28, 29, and 30 and the double-polarity switch 34, having arms 35, 36, and 37, the switch 34 being pivoted at point 40 and kept in midposition by means of the springs 38 and 39. 7

Insulated arms 41 and 42 are carried by the cross-head 3, and are so arranged as to engage with the switch-arm 37 when the piston is at the ends of its stroke, and thereby, in a manner to be hereinafter explained", cause the motion of the elevator-car to be reversed whenever it attempts to pass the upper or lower limits of its travel, and thus prevent accident when from any cause the operator in the car should forget to operate the carswitch. In the elevator-car 11 are located the contact-points 43, 44, and 45 (in electrical connection with the battery) and the switch 46, which may be operated either by the handle 47 or automatically by the small auxiliary electric motor 48, the motor 48 having on its armature-shaft a small pinion 49, which gears with the toothed segment 50, the switch 46, the toothed segment 50, and the handle 47 all being on the same shaft 51. The switch 46 has two arms 52 and 53in electrical connection with the motor 20. All the switches are made with bodies of non-conducting material and arms of conducting material.

The operation of the machine is as follows:

The battery-wire c is connected with the ca r contact-points 43, ll, and i5 and the automatic top and bottom stop contact-points 28, 29, and The valve-operating motor-wire a is connected with the ear-switch arms 52 and 55. The auxiliary motor i8 wires (l are connected to the automatic top and bot tom stop-switch arms 35 and 30. \Vith the switches in the positions as shown in the different drawings all the circuits are open and the machine is motionless, with the piston in, the middle of its stroke. The switch-handle at? now being moved to the right, contact is made between the battery-wires c and the valvemotor wires a, and the valves 5i are moved, admitting water to the cylinder 1 and causing the car 11. to ascend until it attempts to pass its upper limit, when the arm :42 strikes the switch-arm 37 and causes contact to be made between the wires c and (I, thus giving motion to the switch-motor 4S and causing the handle 47 to bemoved to the left, and reversing the direction of the current from the battcry to the valve-motor 20. The position of the Valves 5): being altered, the machine begins to discharge and the car to descend, the switch 3i being brought to its midposition by the springs -BS and 31). The descending car now attempts to pass its lower limit, and the arm 41 strikes the switch-arm 37, again making contact between the motor-wires d and the battery-wires 0, but reversing the firstdirection of the current, and thus causing the switch to move to the right.

I am aware that prior to my invention hydraulic elevating engines and hydraulic valves such as I have described have been made and used for elevating purposes. I therefore do not claim either of these speci fically.

hat I do claim, therefore, as my invention, and desire to secure by Letters Patent, is

1. In an elevating-machine, the combination of an elevator-ear, an electric switch in said car for operating same, a reversible electric motor in said car, a bracket attached to the elevating-machine cross-head slides and carrying a switch and contact-points, insulated arms carried by the elevating-maehine crosshead and which engage with the said braeketswitch, and a suitable source of electricity, the ear-motor and the car-switch being connected through a train of mechanism, the carmotor being in electrical connection with the arms of the bracket-switch, and the bracket contact-points being in electrical connection with the source of electricity, all substantially as set forth.

2. In an elevating-inaehine, the combination of an elevator-car, an electric switch and contact-points in said car for operating same, a reversible electric motor in said car, a bracket attached to the ele\"'ating-machine cross-head slides and carrying a switch and. contactpoints, insulated arms carried by the elevating-machine cross-head and which engage with the said bracket-switch, a reversible electric motor in mechanical. connection with the elevating-machino operating-valve, and a su it able source of electricity, the ear-motor and car-switch being connected through a train oi. mechanism, the car-motor being in electrical connection with the arms of the bracket au tomatic switch, the machine valve-inotor being in electrical connection with the arms of the car-switch, and both the car and bracket contact-points being in electrical. connection with the source of electricity, all substantially as set forth.

Signed at Brooklyn, in the county of Kings and State of New York, this 21st day of l)ccember, A. l). 1888.

JAMES E I) W IN 13 YltN E.

\Vitnesses:

Unrnas b. Meier, ROCKWELL J. I IUNTE n.

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