US325448A - Apparatus for mixing gas and air - Google Patents

Description

(No Model.)

J. R. SGHRIMSHAW. APPARATUS FOR MIXING GAS AND AIR.

4 apparatus.

UNTTED STATES PATENT OEETCE,

JAMES R. SGHB-IMSHAV, OF BROOKLYN, NEXV YORK.

APPARATUS FOR MIXING GAS AND Aia.

SPECIFICATION forming part of Letters Patent No. 325.448, dated September l, 1885.

l Application tiled November 12, 1884. (No model.)

.To @ZZ whom it may concern.'

Beit known that I, J AMEs R1 Sciminsunw, of the city of Brooklyn, in the county of Kings and State of N ew York, have invented a new and useful Improvement iu Apparatus for Mixing Gas and Air, and I hereby declare the following to be a full and clear description thereof.

The object of this invention is to produce an improved apparatus for securing a gasolinegas of equal or nearly equal richness and photometric power throughout the entire time a charge of the carburetor is being consumed, so that the gas thus produced can be as readily used with the ordinary gas-burners as with the adj ust-able burners hitherto required for equalizing the consumption of gasoline-gas.

The mechanism and other details of the machine will be hereinafter fully explained, and will be readily understood by reference to the accompanying drawings, of which- Figure l is an elevation of a complete gasmachine, except the carburetor, which is not shown, it usually being placed outside of the building at some distance from the rest of the Fig. 2 is a sectional elevation of my regulating and mixing attachment to the machine. Fig. 3 is asectional plan, and Fig. et is a top plan, of the regulator and mixer as shown in Fig. 2.

In this machine or apparatus, as in most, if not all, carbureting gas-machines in which atmospheric air is carbureted by admixture of the volatile parts of naphtha or gasoline, there is uscd an aiiiorcing machine, which is in the drawings represented by the chamber A, the mechanism of which said air-forcing machine is operated by a weight, YV, in a well-known manner, the details ot' which need not be herein any more minutely described.

In the apparatus under consideration atmospheric air is admitted to the air-forcing machine through the pipe A', and driven out therefrom through the pipe A2 to a carbureting apparatus, (not showm) and from the said carburetiug apparatus the carbureted air or.

illuminating-gas is forcedthrough the pipe B to the mixing and regulating machine B, as shown in Fig. l, this mixing and regulating attachment constituting the essential feature of this invention. In this regulating and mixrlever, C3, for rot-ating it.

ing attachment or apparatus B just the proper quantity of atmospheric air is admitted to the gas from the carbureting-machine to render the said gas of the proper richness and photometiic quality, and the air so admitted is thoroughly mixed up with the gas. r)Che outer shell of the said regulator and mixer is designated by the letter B, and this shell contains in its bottom part a pair of concentric cylinders, C and C', and two or more diaphragms, D D D2 Di, separating the upper part of the shell B into several mixing-chambers, from the top one of which the gas is discharged through an equalizing eduction-pipe, G, as presently explained.

Referring to the concentric cylinders C C', the outer cylinder, C, is secured to the 'bottom plate of the chamber B, and the inner cylinder, C, is neatly and accurately fitted into the outer cylinder, so as to form a close contact between the two, and yet permit the inner cylinder to rotate within thc outer one. Transverse bars c are attached to the upper end of the rotating cylinder C, and an operating or rotating rod or shaft, C2, attached to the bars c, extends up through the chamber B, and passes out at the top thereof through a stuffing-box, b, above which it is provided with a Just below this lever, and attached to the chamber B, is a graduated segmental guide-plate, Cjwhich has several stop holes, c', arranged to receive a holding-pin, ci, which passes through the lever in the form of a spring-latch operated by the handle c and spring c4.. The handle or lever C is used to turn the cylinder C as required, for the purpose presently explained, and the pin cz and segmental stop-plate G'L hold the said cylinder just in the position required.

The rotating cylinder C' has a series of ci rcumferential apertures, c c ci, &c.,which are so arranged that any one of them may be placed so as to cover the port or inlet from thc pipe E, as may be required, by simply turning the said cylinder C' by means of its lever or haudle C3, and the said apertures are graduated in size, so that by turning the said cylinder to the right or to the left, as thc case may be, a larger or a smaller aperture is presented to the opening of the pipe E; and the mechanism of the parts above described is such that IOO the governor F to the interior of the cylinderA C. The governor F may be any suitable governor or any of those now in use for measuring or regulating the flow of air into a carbureting gas-machine and preventing a reflux of gas from the machine into the air-pipe. The air thus passed through the governor F and the pipe E is taken from the airforcing pipe A through a branch, A3, leading therefrom to the said governor F. The gas entering the regulating and mixing machine through the pipe B is met in the interior of the cylinder C by the incoming current of air from the pipe E, the quantity of air so admitted being regulated by the size of the aperture e e e2, Src., which is presented to the pipe E, and this quantity is regulated to suit the state of the gasoline or naphtha in the carburetor. Thus for new or very volatile gasoline or naphtha a much larger quantity of air must be mixed with the gas than after the gasoline or naphtha shall have become somewhat spent, and the quantity of air so admitted requires to become daily less until the gasoline shall have become fully spent, and consequently the holes e, Src., are regulated to meet this requirement by making the said holes or apertures of varying sizes, and adjusting the largest of them to the pipe E when the carburetor is first charged, and then in a day or so turning the next smaller hole to the pipe E, and in a day or so more the next smaller hole, and so on through the series.

From the top of the cylinder C the mingled gas and air passes upward and through the series of perforated diaphragms placed in the upper part of B to break up and thoroughly mix the mingled air and gas and make it a homogeneous mixture. To fully accomplish this result the said diaphragms are made partly solid and partly perforated, the solid part of one coming opposite the perforated part of the adjacent ones, and vice versa, so that in passing through the chambers formed by these diaphragms the gas and air are thoroughly mixed up. From the topmost chamber of this series of mixing-chambers a horizontal eduction-pipe, G, receives the gas and conveys it to the service-pipe G. The horizontal pipe G has circumferential openings g, the combined areas of which are just equal to the area of the service-pipe G, and by this arrangement the gas delivered to the said service-pipe is taken equally from each stratum of the delivering-chamber in which the pipe G is placed.

Having described my invention, I claiml. The con1bination,with a mixing-chamber of a gas apparatus, of a fixed cylinder, an airinduction pipe communicating with said cylinder through its periphery, a rotary cylinder closely fitted Within said xed cylinder, provided with holes of varying sizes opposite the induction pipe of the outer cylinder, and means for turning said rotary cylinder to bring'different holes opposite said pipe for varying the amountof air admitted to the mixing-chamber, substantially as described.

2. The combinatiomwiththemixingchamber of a gas apparatus, of a horizontal discharge-pipe provided Withrtransverse or spiral slots, and an eduction-pipe connected to said slotted pipe, substantially as, described.

3. The combination, in a gas apparatus, of a mixiug-chamber-provided with a series of perforated diaphragms, the perforations of one of the diaphragms being opposite the solid portions of the adjacent diaphragms, a horizontal pipe above the upper diaphragm provided with circumferential slots, and an eductionpipe connected to said slotted pipe, substantially as described.

4. In combination With fixed cylinder C, the rotating cylinder C', provided with apertures e e' e2, of varying sizes, the operating rod or shaft C, attached to said cylinder for turning it, so as to present any desired one of the said inlet-apertures to the inlet-port of an air-supply pipe, the operating-lever C3, with its springcatch c2, and the segmental guide-plate C", graduated with notches or holes for the catch c, so as to secure the cylinder C in proper position to place the required inlet-aperture fairly over the inlet-port of the air-supply pipe, the whole combined and arranged as described.

5. The combination, in a gas apparatus, of the mixing-chamber B, concentric cylinders G C', arranged at the bottom of said chamber, the outer of said cylinders being fixed, and the inner one rotary and provided With perforations of various sizes, the gas-induction pipe B', opening through the bottom of said chamber into the inner cylinder, the air-induction pipe E, passing through said chamber and through the shell of the outer cylinder opposite the circumferential perforations of the inner cylinder, a shaft connected to said inner cylinder, means for turning and adjusting said inner cylinder to bring different-sized holes thereof opposite said air-induction pipe, the perforated diaphragms within said chamber above said cylinders, the horizontal slotted eduction-pipe G,.above said diaphragms, and the eduction-pipeG connected to said slotted pipe, substantially as described.

JAS. R. SCHRIMSHAXV. lVitnesses:

M. RANDOLPH, W. J. DoUGHrY.

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