US324362A - Lubricator for steam-engines - Google Patents

Description

(No ModeL) 2 Sheets-Sheet 1.4 J. W. CLOUD 8v S. PORCHER. LUBRICATOE FOR STEAM ENGINES 888811888 Ang. 18, 1885.

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J. W. CLOUD an s. PORGHBR.

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LUBRIGATOR POR STEAM ENGINES.

Patented Aug. 18, 1885.

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UNITED STATES JOHN w. OLOUD AND sAMUEL POEOHEE, OE ALTOONA, PENNSYLVANIA.

PATENT CEEICE.

vLUBRICATOR FOR STEAM-ENGINES.

SPECIFICATION forming part of Letters Patent No. 324,362, dated August 18, 1885.

Application filed July 9, 1885. (No model.)

.To a/ZZ whom it may concern.'

ABe it known that we, JOHN W. CLOUD and SAMUEL POROHEE, both of Altoona, inthe county of Blair and State of Pennsylvania, have invented certain new and useful Improvements in Lubricators for Steam-Engines, of which the following is a specification.

Our invention relates, mainly, to that ,class of visible-feed lubricator which has but one connection with the steam space or passage, and that at the base or lower part of the lubricator.

The invention principally consists in forming the casting of which the body of. the lusage open at Vboth ends and extending from the lowest point of the lubricator to a point inside of the condensing-chamber, which surmounts the oil-space, the arrangement being such that this cored passage thus formed in the casting serves both to supply the steam needed for condensing purposes. and also to conduct the lubricant downward from the top of the sight-feed glass or chamber on its Way to the valves and cylinders to be lubricated. In addition to the usual condenser, we make use of an auxiliary condenser located above and in direct communication with the sightfeed chamber, and the cored passage first above referred to serves to supply steam to both of said condensers.

Theforegoing and other features of our invention can best be explained and understood by reference to the accompanying drawings, in which- Figure I is a vertical central section of a lubricator embodying our improvements. The plane of section is partly on line A B, Fig. II,

. and partly on line G D, Fig. II. That portion above the line E Fis on line A B, and that portion below line E F is on line C D. Fig. Il is a View of the lubricator, partly in plan and partly in horizontal section. Fig. III is a vertical central section of a modication which will be hereinafter described.

The body of the lubricator is a single casting, in which Vare formed the oil-chamber x, the condensing-chamber 1 above the oil-chamber, and the cored passage a, open at both ends and extending from the threaded stem x below (which stem screws into the part to which the lubricator is to be attached) to near the top of the condensing-chamber y above. The walls of that portion of the passage within the condensing-chamber are formed in part by the walls' of said chamber itself, as indicated in the drawings. That portion of the passage within the oil-chamber has its walls formed with an enlargement in which is bored the passage e, through which water from the condensing-chamber is supplied to the oilchamber. This passage e, after being bored, has its upper end plugged tight, as indicated at e. The condensed water is conducted to passage e through a duct, e2, controlled by a valve, f, in the usual way. brlcator is composed wltha single cored pasrIhe transparent si ght-feed chamber is shown at h, held in place by stuffing-boxes h h', as usual. The oil enters the lower end of the sight-feed chamber through passage i (controlled by valve y) and nozzle i. The upper stuffing box h screws onto a coupling, j, which is attached to the exterior of the condensing chamber c, and is formed with a branch passage, s, communicating with the interior of the passage a, said passage sserving as an outlet for the oil from the sight-feed 'chamber and also as a conduit for steam into the sight-feed chamber. The sight-feed chamber h is thus brought into direct communication with the passage a, with the effect of securing equality of pressure in the two chambers c and h. Screwed to the top of the coupling j is the tube d, closed at its upper end. This tube formsa chamber,whichis above the level of the passage s, and is thus wholly available as a condenser` to supply the transparent .tube with clear water continuously. Under this arrangement it will be noted that the passage a serves the treble purpose of supplying steam both tothe usual condenserand also to an auxiliary condenser and of conducting the lubricant from the top of the sight-feed cham@ ber downward through the lubricator on its way to the parts to be lubricated.

The top of the condenser c is closed by a screw-cap, t, provided with a central downwardly-projecting tubular extension. r, into which screws the stem n of a cup, k. The stem n has formed in it a passage, u, leading from the bottom of the cup, and terminating in one or more lateral openings, 0,which communicate with an internal enlargement, r', of `the tubular extension of'. The lower end of the stem has a conical form, and is adapted to iit upon a conical seat formed for it in the lower end of the tubular extension r. By reason of lugs or handles m the cup can be screwed up and down, and it can thus be used for iilling the condenser with water in case that be needed or for supplying lubricant (through the condensing-chamber and passage a) to the valves and cylinders in case the glass tube hy should break or the lubricator should be otherwise disabled.

To provide for cases where it is desired to feed the lubricant to the parts to be lubricated by a passage or pipeindepeudent of that which supplies the steam, the arrangement illustrated in Fig. may be employed. Thelubricator in this ligure is similar to the one illustrated in Figs. 1 and 2, and we therefore. represent only the lower and upper ends of it. In this arrangement the globe-valve G into which the lubricator is screwed is formed with two separate and distinct passages, c w, which have no communication with one another. Passage c communicates above with passage a of thelubricator and below with the pipe which carries off the lubricant to the parts to be lubri cated. The crosspassage w, at its outer end, leads into the part P, which opens into the steam pipe or boiler, and at its inner end it is provided with avertical opening under the lower end of passage c. Into this vertical opening is screwed a pipe, (of smaller diameter than passage (1.,) H, which extends centrally up through said passage a to a point above the top of the latter. Thus steam is supplied to the condenser through the inner pipe, H, while the lubricant is conducted away through the outer concentric passage, a.

The stealnpassage w in the globe-valve is controlled by a valve, w. The oil-passage 'v may be controlled in asimilar way, if desired. XVe prefer to arrange the sight-feed glass above the oil-reservoir and to place the condenser c eceentrically to the passage a, with aview to simplifying the construction of the lubricator; but we do not confine ourselves to these arrangements.

lVhat we claim as new and of our own ir.- vention isl. Asightleedlubricatorforsteam-engines, provided with means for attachment at its base only, a main condenser, and an auxiliary condenser above and communicating with the sight-feed glass, in combination with a single passage extending from said base upward, both for supplying steam to the two condensers and for conducting the lubricant downward, substantially as and for the purposes hereinbefore set forth.

2. The combination of the oil-reservoir, the main condenser, the sight-feed glass and its connections, the auxiliary condenser above the' outlet of the sight-feed glass, and the pas sage a, extending from the base of the lubri cater up into the main condenser and communicating directly with both condensers, substantially as and for the purposes hereinbefore Set forth.

3. The combination of the globe-valve provided with independent and separate passages, one for oil and steam and one for steam only, the lubricator provided with the passage a, communicating only with the oil-passage of the globe-valve, and a pipe communicating with the steam-passage of the globe-valve and extending up through the passage a, substantiall y as and for the purposes hereinbefore set forth.

4.. Asight-feedlubricatorforsteam-engincs, provided with means for attachment at its base only, and having an upwardlyextending passage, a, in combination with the screw-cup 7c, applied to the top of the condenser, and constructed and arranged, substantially as described, so that it may be used at will as a seal to the condensing-chamber or as a means by which lubricant can be supplied through the condenser and passagea in case the sight-fccd should become disabled, substantially as hereinbefore set forth.

5. In a sight-feed lubrieator, the combination,with the oil-cup, the main condenser, and the sight-feed chamber, of an auxiliary condenser, d, arranged above the outlet-passage of said chamber so as to be wholly available as a condenser, and adapted to continuously supply the sight-feed chamber with clear water, substantially as hereinbefore set forth.

In testimony whereof we have hereunto set our hands.

JNO. W. CLOUD. SAMUEL PORGHER.

VitIiesses:

EDMUNnl?. LORD, E. J. CAssinY.

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