US367370A - craig - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

' W. H. CRAIG.

` LUBRIGATOR FOR LOGOMOTIVBS.

No. 367,370. -Patented Aug. 2, 1887.

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(No Model.) v 2 sheetssheen 2.

' W. H. CRAIG.

LUBRIATOR FOR LOGOMOTIVES.

Patented Augz. 1887.

N. PETERS, Pnoto-Lnhngrapher. wnsningiw. DA t;

UNITED STATES PATENT OFFICE.

.WARREN HILLIARD CRAIG, OF LAVRENCE, MASSACHUSETTS, ASSIGNOR, BY MESNE ASSIGNMENTS, TO HIMSELF AND DAVID FRANKLIN ROBIN- SON, -OF SAME PLACE.

LUBRICATOR FOR LOCOMOTIVES.

SPECIFICATION forming part o f Letters Patent'No. 367,370, dated August 2, 1887.

Application filed March 23, 1887. Serial No. 232,172.

T all whom it may concern: Be it known that I, WARREN HILLTARD CRAIG, of Lawrence, in the county of Essex, of the Commonwealth of Massachusetts, have invented a new and useful Improvement in c Lubricators for Railway-Locomotive Steam- Engines;` and I do hereby declare the same to be described in the following specification and v vrepresented in the accompanying drawings, of 1o Vwhlch- Figure 1 is a Vertical and mediansection of a lubricator for oiling'bothv the engine-cylinders and their valves and pistons, the plane of such section being taken through the line of i 5 the axes of the oil-educts leading in opposite directions from such lubricator to the valvechests of the said cylinders. Fig. 2 is a vertlcal and median section of the lubricator, the plane of such section being at right angles to 2o thatof Fig. 1. Fig. 3 is an elevation of the lubrlcator as applied to a boiler, and having both its sight-feed chambers arranged so as to b'eseen by the engineer when in his usual position neXt the right side of the cab of the engine. Fig. 4 is a horizontal section taken on line l 1 of Fig. 2.- Fig. 5 is another horizontal section taken on line 2 2 of Fig. ,2. Fig. 6 isa horizontal section taken on line 3 3 of Fig. 1. Fig. 7 is a vertical section taken on 3o line 4 4 of Fig. 5, and showing the passages or parts leading to one of the sight-feed glass tubes. The nature of my invention is duly defined 1n the claims hereinafterppresented.

In my improved lubricator the two sightfeed glass tubes of it are arranged at one side o f the oil-reservoir, rather than on opposite sides thereof, as is the usual custom, my arrangement of them being to admit of both be-.

40 ing readily seen by the engineer when at his post in the cab of t-he engine, such post being close tothe right side of the cab, the usual arrangement, in which the reservoir is direct-ly between the two sight-feed tubes, causing one of them to be behind and so covered by the reservoir as to be out of sight of the engineer, who to obtain a view of it has to leave his position.

In the drawings, A denotes the oil-reservoir,

(No model.) e

and B the stean1-condenser, of the lubricator. 5o In the lower part and onone side of the oilreservoir is apocket or chamber, a, (see Figs. 2, 4, and 5,) from the middle part of which a tube, b, rises nearly to the top of the oil-reservoir and opens into such pocket and reservoir. e

Extending up through the central part of the oilreservoiris a post, C, in which are four passages, c, d, d, and e, which are arranged as represented in Figs. 1, 2, 4, and 5, the median one, c, extending from thetop of the post downward half or abonthalf the length of such post,and openingintoatubularbranchconduit, f, extending laterally from it to the side of the reservoir, and opening into a tubular supporting-shank, g, through which steam from the boiler is to pass into the part f, and thence to and into the passage o, and thence through a tube, c', into the condenser, the said tube c ybeing in continuation of the passage c, and at top having in it a valve, h', to open upward.

The shank g is supported by a bracket, i, eX- tending from the boiler K, (sce Fig. 3,) such shank being to receive steam from such boiler, and also to serve as a support for the lubricator.

The tube o' is between two other tubes,d d, whose upper ends are at a short distance below that of the tube c'. These tubes d d lead npward into the condenser from the passages d d, which at their lower ends open into twoY branch educts h h, arranged as shown in Fig. 1, and leading to the two valve-chests of the steam-cylinders of the locomotiveengine.

The passage eleads fromthelower part of the condenser downward within the post C, and thence turns upward and opens into the oilreservoir, all being as shown in Fig. 2, there being on the top of such oil-reservoir a fillingoriice, k, provided with a screw-plug, l, for closing it.

From the pocket a two educts, m, are led in radial directions relatively to the oil-reservoir, as shown in Fig. 5. Each of such eductsopens into one of the two lower vertical carriers or supports of the two sight-feed glass tubes o o, whose upper vertical .carriers or supports A (shown at p p in Figs. 2 and 4) communicate directly with the vertical passages d d inman ner as represented in Fig. 4. To each educt m there is a stop-cock, q, (see Fig. 5,) to regulate the discharge of oil into the next adjacent sight-feed tube, and there is at the lower part of the oil-reservoir, and opening out thereof, a drainage-pipe, 1', provided with astop-coek. s. (See Fig. 2.) 0n and projecting upward from such drainage-pipe is fixed a lantern, D, which is arranged so as to illuminate both of the sight-feed tubes, the arrangement of it being as shown in Figs. 2 and 5.

The steam entering the lubricator through the inducts g andfpasses into the ducts c and c', and thence into the condenser B, from which the water of condensation ilows by the ducts e and e into the oil-reservoir, displacing the oil therein and causing it to liow into and down the pipe b, and thence into the pocket a. From the said pocket the oil passes into and up through the sightfeed glass tubes, it escaping into them through their induetion-nipples t and flowing in drops up through such tubes or the water therein, and thence into the conduits p p, and thence into the steam-passages d d to and into the branch eductshh,by which the steam charged with the oil is conveyed to the valve-chests of the cylinders of the engine.

There is to each educt h a common oil-cup, E, having to its discharging-orifice a screwplug, F. Within the tube h, and directly underneath each cup E, is a transverse partition, u, (see Figs. l and 6,) above which is a duct, v, leading to the dischargingorice of the cup, and also into the part ofthe tube h which is in advance ofthe partition. Vithin such duct o is a valve, w, whose seat is at the top of a passage, w', in the partition u, and opening into a branch, fr, that communicates with the bore of the part ofthe tube h, which is in rear of the partition. There is to the branch .r a screw-plug, y, (see Fig. 2,) to act against and close'the mouth ofthe passage w'.

When the plug F is closed ou its seat and the plug y is off ts`seat, no oil from the cup E can escape, the steam passing through the passages L and 'w' and forcing upward the Valve; but when the plug F is oft its seat and the plug y is closed on its seat oil from the cup can How into and through the pipe h to the valve-chest of the cylinder, the steam to the said chest and for operating the piston being at the time shut off.

In the apparatus as hereinbefore described, I claim- 1. rlhe oil-reservoir provided with the central Vertical tubular steam-inductleadnginto the condenser, and with the lateral branch or induct opening out of the lower part of the vertical one and through the side ofthe reservoir, all being essentially as set forth.

2. The combination of the tubular supporting-shank, having the steam-passage extending through it, with the oil-reservoir provided with the central vertical tubular stealn-induct leading up from such reservoir into the condenser, and with the lateral iuduet opening out of the lower part of the vertical one, and extending to the side of the reservoir and opening into the said supporting'shauk, all being essentially as set forth.

3. The oil-reservoirprovided with thepocket in its lower part and at one side of it, as represented, and having thereto an oil-induction tube extending up from such pocket nearly to the top of the said reservoir, and also having the two eductsleading from it (the said pocket) to the sightfeed glass tubes arranged in the same side of such reservoir, all being substan tally as set forth.

4. The combination, with the oil-reservoir, of two sight-feed glass chambers or tubes arranged on one side only of and in the same horizontal plane with the oil-reservoir, substantially as and for the purpose represented.

5. A sight-feed lubricator having its two sightfeed glass chambers or tubes arranged at one side only of and on a level or in the same horizontal plane with the oil-reservoir, and also having its oil educts leading from it to the valve-chests of the engine-cylinders arranged to extend in opposite direction from the reservoir, as set forth.

WARREN HILLIARD CRAlG. Titnessesz R. H. EDDY, R. B. TORREY.

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