US12509A - Island - Google Patents

Description

1 w "H'OARD, Gas Regulator No. 'I2,509. Patented March 13, 1855.

PETERS, Pmwulhu n hnr. Walhlngtou. I). z;

UNITED STATES PATENT OFFICE.

,I. HOABD, F PROVIDENCE, RHODE ISLAND.

GAS-REGULATOR.

i e Specification ofLetters IPatent No. 12,509, dated March 13, 1855.

To all whom it may concern: I I

full, clear, and exact description of the same,

Be it known that I, LW. HOARD, of the city and county of Providence and State of Rhode'lsland, have invented a new and useful Improvement in Gas-Regulators and I do hereby declare that the following is a reference being had to the accompanying my invention. e I

j Myinvention consi stslin a certain arrange ment of antinvertedfioating cup upon which the gas acts to contro-li the opening of-the induction or regulating valve, combined :With the application to the lsaid cup} of an uniform pressure on them burners is at all timesmaintained. 1 v I I A is theregulatingchamber placed in the supply pipe, which may consist of an up-' right icylindrical or otherl formed vessel drawing, which forms a part of this specification andrepresents a Vertical central section of a regulator constructed according to air spring or its equivalentl iforthe purpose of increasing or ,jdiminishing the resistance ofwthe said cuputo l the pressure of the gas as r the pressure in the [pipe increases or dimin- Wishes by reasonoffa le'ss or greater consumption or otherwise, w ereby ea, desirable and made of tin plate orfotherlight metal, a, is

he inlet,and b the outlet "of the pipe to" and from the said chamber.

a isadiaphragm placedbetween the inlet and outlet to receive theinduction or regulating valve B, which is of the form ofan inverted cone. I I a e 1 C, is the invertedpup-which floats in quicksilver or otherfluidcontained in an annular formed well D, in the bottom of the chamber A, and isjconnected directly to the bottom of the, valve by a stem d, which is continued; throughthe bottom of the chamberfo-rlthe purpose of being weighted to T graduate the'p'ressure in the pipe.

The interior or underside of the cupis exposed to the atmosphere 1 which has free access through the openinge, in the bottom of the chamber and only the upper side is exposed to the pressure of the gas. The sides of the .cup are made double, in order that a quanof the quicksilver.

tity of air maybe confined in the annular space f within them and above the surface The air thus confined in f serves as a spring to counterbalance the pressure of the gas and gives the requisite buoyancy to the cup, its force increasing or diminishing as it becomes compressed or is allowed to expand by any increase or d1- .minution of the pressure of the gas in the chamber acting above the cup until the valve is balanced in the position necessary to allowof the passage of so much gas as is necessary to sustain the desired pressure at the outlet 6.

It may be well to mention that I consider as equivalents to the air spring f, a spiral or other spring applied to partly suspend the valve and cup from the top of the chamber A, or a float of wood orsome buoyant material ,applied to or forming the sides of the cup. a

I consider this regulator to possess advantages over others in common use, in its extreme simplicity and small cost of construction while it is as effective as the best. This regulator produces a perfectly steady light, no flickering whatever being visible and in this respect is superior to all others known to me.

I am aware that the inverted cup has been and is employed by Kidder and others and therefore I disclaim it, irrespectively of the peculiar arrangement and combination herein described. And

What I claim as my invention and desire to secure by Letters Patent, is

The arrangement of the lnverted cup so that only the upper side or exterior is exposed to the pressure of the gas, and the underside or interior is exposed to the atmosphere,when this is combined with the application to the said cup of the air spring f or its equivalent substantially as and for the purposes herein set forth.

i I. W. HOARD.

Witnesses:'

H. C. GARDINER, J.'B. KIMIBALL.

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