US250944A - Lubricator - Google Patents

Description

(No Moden.) 2 sneetssneet 1.

W. W. MITCHELL.

LUBRIGATOR.

N. 250,944. Patented Deo. 13,1881.

Www@ ATTORNEYS (No Model.) 2 Sheets-'Sheet 2.

- l W. W. MITCHELL.

LUBRIGATOR.

mami` Deo. 13,1881.

INVENTOR l L y AT ORNEYS WITNESSES UNITED STATES PATENT OEEICE.

XVILLIAH W. MITCHELL, OF NEV HAVEN, CONNECTICUT.

LUBRICATOR.

SPECIFICATION forming part of Letters Patent No. 250,944, dated December 13, 1881.

' Application led May 12, 1881. (No model.)

1" o all whom 'it may concern:

Be it known that l, WILLIAM W. MITCHELL, a citizen of the United States, resident of New Haven, in the county of New Haven and State ofCounecticut, have invented a new and valuable Improvement in Lubricators; and I do hereby declare that the following is afull, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification, and to the letters and figures of reference marked thereon.

Figure l of the drawings is a representation of a vertical section ofmyinvention. Fig. 2 is a detail view; and Figs. 3, 4, 5, and 6 are modifications.

This invention has relation to lubricators for locomotives and other steam-engines; and it consists in the combination, with the water or condensing chamber and the oil-chamber, ot' a steam-chamber, and within the same a vapor-conductor.

It also consists in the construction and novel arrangement of the feed-passage for the oil, the partition above the glass tube, and the passages or tubes connecting therewith, of the grooved feeding-plu g and the bearings for the glass tube, and of other devices in connection with the steam-chamber, the condensing-chamber, and the oil-cup, as hereinafter shown and described.

In the accompanying drawings, the letterA designates the boiler, to which the lubricator is attached; and B represents the steam-chamber of the lubricator, into which steam is admitted from the boiler through a passage, a, which is provided with a valve, b, to cut off communication with the boiler. The steamchamber is provided with a conductor or passage, c, connecting with the pipe d, which leads to the cylinder or valve-chest of the engine.

C represents the condensing or water chaml ber, which is provided with an interior upright tube, e, extending from the passage g, communicating with the steam-chamber nearly to the top of the water-chamber, as shown in the drawings. Through the passage g and the tube c steam passes into the chamber C, and, becoming condensed, descendsin the form of water through the passage 7L and tube k to the lower portion of the oil cup or reservoir D. The passage h is provided with a valve, b',

whereby the downward iiow of the water is regulated or arrested altogether, according to requirement. Through the arm E, in which the steam-passage gis arranged. an oil-passage, Z, also extends, being provided with a regulating or cut-ott' valve, b, and with a spout or discharge, m, within the steam-chamber.

F indicates a glass tube or water-sight, arranged in oil-tight bearings n, into which it is passed through an opening, p, which is afterward closed by means ofthe screw-plug G, having a circumferential groove, r, and passages s, through which oil is fed to the waterglass F. The circumferential groove r permits a constant How of oil, whereas if no groove were employed and the plug screwed either too little or too far, the passages would not align, and a meager flow of oil would result. Into the upper end of said water glass or tube F extends one end of a tube, l', pass-` ing through a wall or bearing, t, above said glass F, and separating the latter from the oil-filling passage H. The other end of the tube l' connectswith the oil-passage l in the arm E. The passage H, leading to the oil cup or reservoir D, is closed at the outer end by means of the screw-plug K, which engages with the threaded opening u. From the lower end of the oil-cup extends upward nearly to the upper end of the same a tube, o, which connects at its lower end with an oil-passage, w, which extends to the feed-plug G at the lower end of the glass tube F.

L indicates the water-discharge, having the' valve bf".

The operation of the lubricator is as follows: Steam is admitted to the steam-chamber B from the boiler, and passing thence into the chamber C is condensed and carried downward through the passage h and tube 7c into the oil-chamberD, raising the oiltherein, which tiows down the tube fv and through the passage zo and plug G into the glass tube F. This tube is designed to have been previously tilled with the water of condensation, and the oil passes upward through the water in the form ot' visible drops, indicating the rapidity of feed. The oil passes from the glass tube, through the tube l and passage l and spout or tube m, out into the steam-chamber at or near the mouth or wall of a conducting-passage, c, where it is IOO Vaporized and commingled with the particles of watery Vapor, and passes through the conductor or passage c in the form of greasy steam t0 the pipe leading to the cylinder, valve-chest, or steam-pipe of a locomotive or steam-en gine.

It is evident that many slight alterations in the construction of a steam-chamber can be made for accomplishing the same result; and I do not, therefore, limit myselfl to the exact construction herein shown and described.

Having described this invention, What I claim, and desire to secure by Letters Patent, 1s-

1. In a lubricator, the combination, with a condenser, C, and an oil-chamber, D, of a steam-chamber, B, and Within the same a vapor conductor or passage, c, substantially as specified. y

2. In a lubricator having aglass sight-tube, an oil-passage, l, a tube, l', an oil-reservoir, and the bearing t at the top of the glass tube forming the Wall ot' the oil-filling passage, substantially as specied.

3. In a lubricator, the open lower bearing for the lower end of the glass tube and. the grooved feed-plug G, having the passages s,

in combination with the oil-passage w, substantially as specied.

4. In a lubricator, the combination, with the glass tube F, the steam-chamber B, the oilchamber D, and the condenser C, of the steampassage g and. tube e, the Water-passage h and tube 7c, and the oil-passages l w and tubes m l n, in connection with the valves b b, substantially as specified.

5. A steam-reservoir for lubricators having an oil-discharge, m, and a vapor conductor or passage, c, substantially as specified.

6. In a lubricator, the combination,with the oil-reservoir, of the Wall or partition over the glass tube forming the oil-illing passage H, and the feeding-tube l', extending through said filling-passage to the oil-discharging passages l and m, substantially as specified.

In testimony that I claim the above I have vhereunto subscribed my name in the presence of two witnesses.

WM. W. MITCHELL.

Witnesses:

THEO. MUNGEN, PHILIP G. MASI.

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