US61593A

US61593A - Alonzo h

Info

Publication number: US61593A
Authority: US
Publication date: 1867-01-29
Anticipated expiration: 1884-01-29

Description

' A. H. WOOD.

Gas Regulator.

No. 61,593. v Patented Jan. 29, 1867.

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N. PETERS. PHOTO-LITHOGRAPHEN. WASHINGTON. D C.

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Be it known that I, ALONZO H." W001), of Boston, in the county of Suffolk, and State of Massachusetts, have invented certain new and useful improvements in Automatic:Attachments for. Gas Regulators; and I do hereby declare that the following is a full, clear, and exact description of the same, reference heing had to the accompanying drawings, which form part of this specification, in which the marks of reference correspond in all the figures.

One important object of this invention is, to keep up a uniform pressure of the gas at the supply pipe when a greater or lessnumber of burners are lighted. Another important object is,- to counteract the resistance of the mercury to the disk when the'same is immersed to a greater or less degree. I accomplish these and other important objects by constructing automatic self-adjusting weights which will increase or diminish their force upon the disk, as the same is raised or lowered, by the greater or less amount of pressure of the gas underneathv the same, thereby counteracting the slightest variations of pressure perceptible; by constructing theweights oi'lhollow glass tubes, which, being partially filled with mercury, the slightest movement of the angle of the weights causes the mercury to change its position in the same, thereby bringing more or'less weight upon the disk; the weights being adjusted upon fulcra provided with friction-rolls, are made to act with the least amount of friction. In the drawings annexed Figurel is a perspective view of my invention. Figure 2 is a sectional view of a gas regulator with the automatic'regulator attached. In the drawings annexed, A A A A' represent four weights, being composed of glass tubes or vials par:

, tially filled with mercury, 13.. c c c" 0' represent friction-rolls, upon which the vials rest, acting as'a sort oi fulcrum upon which they move. (1 d d" 02' represent caps to the vials, which are hinged to the piece e at four points equidistant apart. The piece c has a 'slot in which to admit the button 2', having a shank extending downward into the adjusting-screw It, so as to obtain more or less weight from the mercury by allowing them to move a greater or less distance.- .A cup, n, surrounds the nut'm upon; the top of the disk P, into which small weights may placed to add greater or less pressure to the regulator, as may be desired. P is a thin metal disk, with rim immersed in the mercury-seat R, situated in a groove around the inner side of the upper chamber of the case S, which is cylindrical in form. From the-centre of the disk P extends-a small rod, H, upon the lower end of which is fitted the mercury-cup T, which forms a seat for the -shaped valves upon the lower end of the tube U. An opening in the bottom of the case serves to let out any mercury which may run over from the valve- F seats. y is a screw for closing the opening. F is the inlet, while, G is theoutlet or supply pipe for the burners. It will he observed that the outer case forms two apartments, or anupper and'lower chamber, land 2. The gas being admitted into the inlet F of the lower chamber, the greater the pressure upon the cup T the more it closes the'openings of'the V-shaped valves iuthe lower. mercury-seat by raising the cup, while a less amount of pressure allows it to fall, and causes the disk Pto' drop lower into the upper mercury-seat RF; consequently, the Further the disk extends into the mercury the greater is the buo yancy, as a greater amount of mercury has to be displaced. ,Thus the supply or pressure of the gas would diminish at the supply pipe or burners in proportion to the number lit, and increase in proportion to the number of burners closed, while vice ziersa should be the case. Thus it will be seen that the glass tube weights partially filled with mercury act automatically, so as to countern-ct the buoyancy of the disk in the mercury, and keep a nniform pressure of gas corresponding tothe number of burners lit, or closed by the weights, increasing the pressure according to the number lit, and decreasing in proportion to the number closed. (See dotted lines in fig. 2.) Thus I'ameuabled to overcome the difliculty existing in gas regulators above referred to. I do not confine myself, however,'to any particular mechanism to accomplish the desired result, as other means mechanically equivalent maybe employed; .but describe this as one best suited to that class of regulators shown in the drawings, as. having two mercury-seats, to which this mechanism is peculiarly adapted. A similar attachment'of' automatic changing weights may be applied to gas regulators in general, sons to accomplish the important and desirable object attained upon this particular class of regulators.

Having thus described my invention, what I desire, to secure by Letters Patent, is- Y I claim an automatic gas regulator attachment, having the functions and possessing the characteristics substantially as set forth.

, A. H. WOOD. Witnesses:

SrLvnnus WALKsR, M; J. E. Jscons.