US1003882A - Electric regulator. - Google Patents

Description

s. Y. GULLEY;

ELECTRIC REGULATOR. --APPLIOATIORHLED DEC. 23, 1910.

1,003,882.- Paterited Sefih 19,191

N VEN TOR UNITED STATES PATENT FFICE.

STUART Y. CULLEY, 0F COVINGTON, KENTUCKY.

ELECTRIC KEGULATOR.

Specification of Letters Patent. Paten ted Sept. 19, 1911.

Application filed December 23 1910. Serial No. 599,025.

ployed for introducing and cutting out elec-' trical resistances.

The objects of my invention are to secure the conditions of the greatest number of contact fingers giving the maximum surface to the core E. The box G has a base which contact with the mercury; to cause the mercury to rise and sink with the least amount of mechanism; to, have the weight of the mercury moved, always the same; and to do away with dash pots by causing the mercury and its containers to act in this capacity.

Other objects and, advantages are apparent fromthe following description and rawmgs.

The single figiire of the drawing is an' elevation in section, the complete device as far as my invention'is concerned.

The organization comprising my invention. consists ofa reservoir A, containing mercury B, and movable both up and down, a stationary box C within said reservoir and provided with a hole through its base, for

i the admission of mercury from said reservoir, a series of contact fingers K, each' reaching farther and farther 111130 the mer cury, and held fixed to said box, a solenoid D under the reservoir, a core E for said solenoid, a rod F connecting said core to said reservoir, a stationary guide G, through which said rod passes, a swinging center, H, 41 lever I, supported by said center, a

weight J on one end of said lever, the other end being pivoted to said rod. Resistances L connect together the upper ends of the i and down,

fingers K. The box C is indicated as being stationary by being held means of the bracket N.

on the wall 0, by

The operation is simply that the pulling A down of the reservoir causes the mercury to sink lower and lower relatively to the contact fifigers K, thereby leaving some of the fingers K free from the mercury, some of thus introduced into the main line M,-for regulating purposes according to well known principles.

. The displacement of the solid portion of the boxC causes the mercury to rise and fall with a minimum amount of mot-ion of slopes to the lower ends of the contact fingers K, so that only a small space exists for the mercury.

Although the mercury runs in and out of the box 0, yet' the weight of the mercury to be raised by the solenold is constant.

The reservoir A, box C, and mercury also act as a dash pot, thus saving the cost and complication due to an extra dash pot.

. I claim as my invention m An electric regulator consisting of a reser voir containing mercury and movable up a stationary box immersed in said mercury, and having a hole through the base for admitting by said resistances, dipping successively farther and farther into said mercury insaid box, and supported by said box, a stationary solenoid, a movable core therefor, fixed to said reservoir, and a counterbalance for the weight of said core, reservoir and mercury.

STUART Y. OULLEY.

' Witnesses:

B. E. Woons, H. F. MpDoNALD.

A by the solenoid D,

and releasing mercury, reslstances, a serles of contact fingers connected successively at their upper ends the resistances L beingv

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