US267692A - Oil and water injector - Google Patents

Description

(No Model.)

0. H. JEWBLL.

OIL AND WATER INJECTOR.

120267.692. Patented Nov. 21, 1882.

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UNITED STATES OMAR H. JEWELL, on

PATENT FFICE.

CHICAGO, ILLINOIS.

OIL AND WATER INJECTOR.

V SPECIFICATION forming part of Letters Patent No. 267,692, dated November 21, 1882.

Application filed September 26, 1882. (No model.)

To all whom it may concern Be it known that I, OMAR H. JEWELL, of Chicago, in the county of Cook and State of 1llinois,have invented certain new and useful Improvementsin Oil and Water Injectors; and I do hereby declare that the following is a full, clear and exact description thereof, reference being bad to the accompanying drawings, and to the letters of reference marked thereon,whic h form a part of this specification.

This invention relates to devices for automatically feeding oil into steam-cylinders or Water into steam-boilers in regular quantities with each stroke of the engine; and it consists in an apparatus in which the pulsation of the steam will vibrate one or more diaphragms, such diaphragms with each vibration bringing aboutanalternatesuctionandcompression that, in connection with suitable suction and check valves, will operatein the manner of a piston. pump, all as hereinafter will be described and specifically claimed.

In the accompanying drawings, Figure 1 represents a vertical section through the center of the apparatus asarrangcd for feeding oil for lubricating purposes. Fig. 2 is a plan of the base of the apparatus detached, showin g the lower diaphragm. Fig. 3 is a bottom view of the disk. that holds the upper or small diaphragm, Fig. 4. is a sectional view of a steam-cylinder having my apparatus attached, and Fig. 5 is a section of the apparatus arranged as a feed-water injector for boilers.

Gorrespondin g letters in the several figures of the drawings designate like parts.

In Figs. 1., 2, 3, and 4, A denotes the base, having a hollow screw-stem, a, centrally to its bottom, and an annular flange, b, to its top, that is exteriorly screw-threaded.

B is a disk, having a rim-flange, c, to its bottom edge, which is exterior-1y screw-threaded to connect with the flange b of base A, and a rim-flange, d, to its top edge for holding the glass tube 0. This disk B has a screw-stem, e, centrally to its top face, that is bored and counterbored, and in the bottom of disk B, around its bore, is formed a circular chamber, which is screw-threaded for a screw-ring,f, and between the top of this chamber and screwringf is held the flange of a sheet-metal cup, I

g, which flange may be soldered to the screwringf; or thejoints may be closed hermetically by a little packing or cement placed between such flange and ring. The bottom of cup 9 is spun out to be a little concave, with acrease around its edge, that will allow such bottom to yield to an upward pressure, and when released to reassume its former shape. spring, h, is inserted with one end into the counterbore ot' screw-stem e, and exerts with its lower end a pressure upon the center of the concave bottom of cup A sheet-metal diaphragm, D, is clamped with its edges between the flange b of base A and disk B, and may be either soldered tosuch flange b or thejoints may be closed hermetically by cement or packing. This diaphragm I) is formed concave, with an annular crease near its circumference, in a manner to yield to an upward pressure and to reassume its original shape as soon as released- The center of the bottom of cup 9 is in close contact with diaphragm D in a manner that an upward pressure upon diaphragm D will be transmitted to the bottom of cup g.

Upon screw-stem e is secured the valvecasing E, that has a screw-socket in its upper endfor coupling the tubular stem F, upon which again is screwed the cap-disk G, that has a flange to its bottom edge for receiving and holding the top ofglass tube 0. Between stem A spiral e and the screw-socket the casing E is bored out to form the seat for a small conical checkvalve, 71, that will open with an upward pressure. To one side of valve/i another seat is formed for a suction-valve, K, the opening through which such valve is inserted in its seat beingclosedbyascrew-plug,l. Acommunicat ing channehm, is formed in the casing between V the chamber above valve K and the chamber below valve 1', through which the liquid will flow.

To the upper extremity oftubular stem F is'se- "cured acasing, H, for an auxiliary check-valve, 0, and the top opening through which such check-valve is inserted is closed by a tubular nut, p, that holds a screw, q, having a handwheel, 1, to its upper end, and is provided with a packing-nut, s, for closing the joints around screw q. By this set-screw the raising of the valve 0 can be limited for regulating the quan tity of liquid that is to pass-through the valveopening.

The casing H has a screw-socket, t, to one side, for coupling a pipe, u, which connects with the steam-pipe I of the engine. A pipe, o, is tapped into the cylinder-cover J, and by an elbow, to, is coupled either direct or indirect with screw-stem a of the apparatus.

The cap G is provided with an opening, that is closed by a screw-plug, L, for filling the apparatus with oil.

While the engine is running live steam from the boiler is admitted from the steam-chest through the slide-valve alternately into one end and then into the other end of the steam-cylinder, and the apparatus being connected by pipe 1) with one end of the cylinder, the pressure of the steam will act in pulsations upon the diaphragm D in a manner that with each revolution of the engine-shaft such diaphragm will be once depressed and released again, and the pulsation of diaphragm D being transmitted to the bottom of cup 9, such cup with every depression will force a small quantity of oil through the check-valves i and 0, and with every releasing again it will draw oil through suction-valve K. The diaphragm D having a much larger area against which the steam acts than the elastic bottom ofcup g; that again is acted upon by such diaphragm D, the force eX- erted by the pulsations of such cup 9 is much in excess over the pressure of steam in the boiler or steam-pipe into which the water or oil is to be fed, thus insuring a perfect and reliable operation of the pumping mechanism. Live steam thus being admitted into the chamber between diaphragm D and base A,these' parts become heated and will conduct the heat to disk B, which again will heat the contents of the glass tube chamber sufficiently to liquefy tallow, and thus enable the use of tallow for. lubricating purposes.

Fig. 3 represents the apparatus as constructed to be used asa feed-water injector for steam-boilers, when, as will be noticed, the construction of the operating parts is the same, only the glass tube 0 and cap-disk G are left oh, and an additional pipe, as, is required, that connects with a chamber formed below suction-valve K, and leads to the tank or reservoir whence the feed-water is to be drawn. The pipe a in this case is to be connected with the boiler and the pipe 22 with thecylinderhead, and the entire apparatus is to be made of proportional larger dimensions.

As will be noticed, the apparatus isvery compact in its construction, and has no parts,

-,excepting the valves, which could wear, and

every part is easily accessible should repairs be required.

The application of diaphragms in the manner described has many advantages over a piston or plunger device that requires a connection with a moving part of the engine, which in most instances is cumbersome to make and adds to the cost of the apparatus.

With this apparatus to an engine, oil or water will be fed automatically in uniform quantities with every stroke of such engine, and as soon as the engine stops running the feed will stop also.

The apparatus can be connected to feed oil not only into the steam-pipe for lubricating the valve and cylinder, but as well to other parts of the engine that need lubricating, or to the air-pump cylinder on locomotives f0 operating the pneumatic brakes.

For feeding oil or water to places whence the flow is not resisted by a counter-pressure, the cup or diaphragm 9 may be dispensed with and only a single diaphragm, D, applied.

What I claim is- 1. An oil or water injector having one or more elastic diaphragms that communicate with either end of the cylinder of a steam-engine or air-pump in a manner that such diaphragms are alternately depressed by the pressure of the steam or air and released again with the exhaustion of the same, and having suction and check valves that will draw and direct the course of the'oil or water set in motion by the pulsations of such diaphragms,the whole being constructed and arranged to operate substantially in the manner set forth, for

"the purpose specified.

.2. An oil or water injector that'is to be connected by apipe, o, withone end of the cylinder of a reciprocating engine or pump, and is provided with elastic diaphragms D and g, suction-valve K, and check-valves t and 0, the whole being constructed and arranged to 0perate substantially as set forth.

3. An oil-injector that is to be connected by a pipe, 17, with one end of the cylinder of a reciprocating engine or pump, has an oil-reservoir, C, and is provided with elastic diaphragms D and g, suction-valve K, and checkvalves i and 0, the whole being constructed and arranged to operate substantially as specified.

In testimony that I claim the foregoing as my invention I affix my signature in presence of two witnesses.

OMAR H. JEWVELL.

Witnesses:

G. HUZEL, L. NOL'IING.

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