US577739A

US577739A - And benjamin

Info

Publication number: US577739A
Authority: US
Publication date: 1897-02-23
Anticipated expiration: 1914-02-23

Description

E. J. FROST & BQM I DDLEDITOH DEVICE FOR REGULATING QUALITY OF GAS- I 170. 577,739.

Patented Feb. 23; 1897.

(No Model.)

INVENTORS 2.. but Mg.

WITNESSES .0m, GLM,

Nrrnn STATES PATENT FFTQEQ EDWARD J. FROST, or PHILADELPHIA, PENNSYLVANIA, AND BENJAMIN MIDDLEDITOH, or DETROIT, MICHIGAN, ASSIGNORS TO JOSEPH n. BERRY, or D T ornMIorneAN;

DEVICE FOR REGULATING QUALITY OF GAS.

SPECIFICATION forming part of Letters PatentNo. 577,739, dated February 23,1897. Application filed June s, 1895. semi No. 552,643. (No model.)

T0 at whom it mayoral 1.067%.-

- Be it known that we, EDWARD J. FROST, of Philadelphia, in the State of Pennsylvania, and B NJAMINMIDDLEDITOH, of Detroit, in the State of Michigan, have invented certain new and useful Improvements in Devices for Automatically Regulating the Quality of Gas, and especially that known as air-gas or carbureted air, of which the following is a specification, reference being had .to the accompanying drawings.

Figure 1 is a central vertical section of the apparatus. Fig. 2 is an end view of the lever and counterbalance, and Fig. 3 a View in per spective of the outer end of the lever and counterbalance.

It is Well known that air-currents charged with hydrocarbon vapors of gasolene from carbureters and designed for illuminating purposes vary from time to time in the degree of saturation, thus causing corresponding variations in the illuminating power of the gas, and most of the time there is an oversaturation, thus causing smoke in the burning of the gas, with diminished candle-power and the giving out of unpleasant odors.

It is known that the gravity or weight of the gas varies with the degree of its saturation by the vapors of gasolene and that these vapors can be mixed in proper proportions with air and a uniform gas can be produced of unvarying candle-power.

Taking advantage of the above facts, the object of our invention is the production of a machine simple in construction and reliable in action whereby to automatically effect such regulation in the proportion of air and gas as to secure the best possible results from such mixture.

In the accompanying drawings, 1 represents a cylinder or mixing-chamber having the extension 2.

3 is a sealed float, preferably of cylindrical form, connected with one end of a lever 6, the mode shown in the drawings being a 1ug7 on float 3, pivoted to the lever 6.

A central passage-Way 4 may be formed through the float 3 to receive avalve-stem 5, one end of which is connected with the lever 6 through lug 7, the other endbeing connected jvalve-stem connected with the float orwith the lever in any other Way.

The lever 6 is fulcrumed at 8 and is. provided with a bifurcated counterbalance 9,

which is supported by pivot 10, resting on bearings in traveling block 11, which in turn is supported on the outer end of the lever. 12 is an upward projection or lug on lever 6, forming a bearing for screw 13, for the adj ustment of counterbalance 9. 14 is the casing containing the valve-seat 15, on which the valve 16 rests when closed. 17 is the air-inlet, through which air is supplied at a pressure equal to or greater than the pressure of the incoming gas, and 18 is the gas-inlet, and the arrows designate the passage of the gas around the deflecting-plate l9 and float 3. Therod 5 isconnected at top by a swiveljoint to the lug 7 and at the bottom with the valve 16 with similar attachment. 20 is also a deflecting-plate and is attached to cover 21. 22 is the gas-outlet leading to the burners. 23 represents a rod having a bearing in the wall of extension 2 and adapted to have inward longitudinal and also axial movement, and has on its inner end a socket to engage with screw 13 to adjust the position of counterbalance 9. A spiral spring 24 on the stem of rod 23 retracts same when pressure is released from said rod.

The operation of our device is as follows: The float and the counterweight are so initially adjusted relative to each other as that the valve 16, controlling the air inlet, is closed and remains closed when vapor of just the desired richness (or less) is passing from the carburetor into the gas inlet 18 and through the cylinder 1 to the burners. As soon, however, as the vapor-current becomes too highly charged or saturated the increase of its density so resulting lifts the float 3 and with it the air-inlet valve, at same time correspondingly depressing the counterweight 9. This admits air to the mixing chamber through inlet 17 and valve 16 to dilute the vapor in said chamber, and (when gas is be ing drawn from the miXing-chamber)the float varies the position of valve 16 in accordancewith the amount of air required from time to time, thus keeping the vapor within the mixing-chamber at practically a constant density and insuring gas of even and regular quality. Sudden variations in the number of lights supplied from the n1ixing-chamber may cause the fioat to open the valve wide or to close the air-valve entirely; but ordinarily when the apparatus is in use the admission of air is continuous, but regulated, until the gasolene in the carburetor becomes nearly exhausted of its lighter constituents.

By the use of our invention the quality of gas supplied to the burners is practically uniform from the time the carbureter is charged with fresh gasolene down to the time when the gasoleneis exhausted instead of being rich, heavy, and smoky at first and afterward poor, light, and deficient in illuminating power, as usual.

It will beobserved that the counterweight on the outer end of the lever is movable longitudinally and can be readily and accurately adjusted by removing the cap 25, pushing inwardly the rod 23 until the socket on the inner end of same engages with threaded rod 13, and then turning rod 23 to the right or left, as required, to effect the desired adjustment.

Should it be desired to vary the standard or quality of the gas to be employed at the burners at any time, any desired adjustment as between the counterweight and the float can be effected in the manner described.

Our invention is equally applicable to the regulation of the supply of gasolene from a gasolene-tank to the carbureter, the valve in such case, as 16, beingplaced intermediate between the gasolene-tank and the carbureter, and its opening and closing being consequently effected by the varying density of the gas in the mixing-chamber and the corresponding rise and fall of the float.

It will be observed that the counterweight on the outer end of the lever is movable 1ongitudinally and can be readily and accurately adjusted by removingthe cap 25, pushing inwardly the rod 23 until the socket on the inner end of same engages with threaded rod 13, and then turning rod 23 to the right or left, as required, to effect the desired adj ustment.

Our invention is equally applicable to the regulation of the supply of gasolene from a gasolene-tank to the carbureter, the valve in such case, as 16, being placed intermediate between the gasolene-tank and the carburetor, and its opening and closing being consequently effected by the varying density of the gas-in the mixing-chamber and the corresponding rise and fall of the float.

Having now described our invention, what we claim as new, and desire to secure by Letters Patent, isl 1. The combination with a mixing-chamber having a gas-inlet port and a gas-eduction' port, of a lever pivoted in said chamber having said chamber, substantially as and for the purposes set forth.

2. In devices for regulating the quality of gas, the combination of a mixing-chamber provided with an inlet-port leading from a gas-producer, an air-inlet port leading from an airblast, and an eduction-p0rt leading to the burners, of air-inlet valve 1 6 and-counterbalanced float 3 so connected to'each other that the amount of opening of sai'dvalve is automatically regulated by the density of the gas admitted to said mixing-chamber,substantially as described.

3. The combination with mixing-chamber 1 provided with induction-portsfor the admission of gas and air, respectively, and with an eduction or delivery port, and an extension 2, of float 3, passage-way 4t, therethrough,val'vestem 5 balance lever 6, counterbalance 9, valve 16, and an adjusting device connected with said lever whereby the adjustment of said counterbalance can be effected and the admission of air to said chamber be automatically regulated by the density of the gas admitted to said chamber, substantially as described.

4. The combination with mixing-chamber 1, provided with induction and eduction ports, of float 3, having passage-Way at, therethrough, lever 6, provided with lug, or projection 12, counterbalance 9,traveling block 1l,threaded rod 13, valve-stem 5, connected at its upper end to lever'6, and at its lower end to valve 16, and means, as rod 23, for effecting the longitudinal movement of said counterbalance, substantially as described.

In witness whereof we have hereunto subscribed our names, in the presence of two witnesses, on this 1st day of June, A. D. 1895.

EDWVARD J. FROST. BENJAMIN MIDDLEDITCl-I. \Vitnesses as to Edward J Frost:

A. B. SHOEMAKER, O. F. GUMMEY, Jr. Witnesses as to Benjamin Middleditch:

A. H. WILKINsoN, R. B. WILKINSON.