US320379A - Lubricator - Google Patents

Description

(No Model.) B. MCCOY LUBRIGATOR. No. 320,379. Patented June 16, 1885.

N. PETERS, pnqwulhn bqr. Washington. a. c.

FFICEo ELlJAH MCCOY, OF DETROIT, MICHIGAN.

LUBRICATOR.

SPECIFICATION forming part of Letters Patent No. 320,379, dated June 16, 1885.

Application filed May 1, 1885.

To all whom it may concern Be it known that I, ELIJAH McUoY, of Detroit, county of \Vayne, State of Michigan, have invented a new and useful Improvement in Lubricators; and Ideclare thei'ollowing to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it pertains to make and use it, reference being; had to the accompanying drawings, which form a part of this specification.

My invention relates to the combinations of devices and appliances hereinafter specified, and more particularly pointed outin the claims.

My invention is designed as an improvement upon a lubricator patented to Clarence B. Hodges and myself, dated November 18, 1884, No. 308,258.

In the drawings, Figure 1 represents a view of the condenser at the top of the lubricator, constructed in other respects as described in the said patent. Fi s. 2 and 3 are variations.

My invention consists more particularly in continuing the interior equalizing pipe or conduit up past the point at which steam is admitted from the boiler to the condenser, as will be more particularly described.

A represents the body of the lubricator. B is its condenser. U is an equalizing pipe or coiuluit,designed to afford a back-pressure into the discharge-orifice of the lubricator, to new tralize the effect of the direct pressure,

through the condenser, all of which is described in said above-named patent. In the said patent, however, the said equalizing pipe or conduit starts from a point within the condenser and below the point at which steam enters from the boiler. Frequently, however, a boiler, by priming or for some other reason, would till up the condenser with water, and the water would pass over into and down through the said conduit.

It is the object. of my invention to overcome this difficulty. This 1 accomplish by forming at the top of the condenser B an elongated neck, B, which projects some distance above the condenser, and I continue the conduit or pipe 0 up nearly to the top of thisneck. Now, instead of leading the pipe up from the boiler directly into the top of this neck, the said pipe taps the neck at a point some distance below the top and below the upper end of the said (No model.)

conduit 0. This pipe D, leading oft laterally from the neck B, taps the steam-space of the boiler at a point on or below this level. The result is, that steam entering the boiler cannot by condensation raise the water so high as to cause it to enter and pass down the conduit 0. So, also, should the boiler by priming cause water to pass in through the pipe 1), it would tlow back through the pipe into the boiler as soon as it had reached the level of the pipe where it taps theneck' B.

The dit'ticulty which arose by water passing down the conduit 0, as shown in the former patent, was that the water would fill up the space above the water in the sight-feed tube, and would make a continuous column of water back and up to the top of this conduit 0. This column of water would be as high, or substantially as high, as the direct column, which, operating through the condenser and oilchamber, serves to drive the oil up through the sight-feed chamber. The effect was therefore to neutralize this pressure by a corre sponding back pressure, and so stop or nearly stop the drop-feed of the lubrieator. The in- I veution here described, it is apparent, overcomes all this difticulty, and insures that there shall always be a passage of direct steam down through the conduit 0, and that no condense water or prime water shall pass down through the conduit.

It is apparent that this invention is equally applicable whether the equalizing-pipe is located on the inside or upon the outside of the body of the lubricator. Thus, as shown in Fig. 2, the equalizing-pipe 0 may be started from a point at or near the top of the neck B and passed down upon the outside of the body of the lubricator instead of being; embraced wholly or partially within the body of the lubricator, or, as showniu Fig. 3, the neck B,

which rises above the point of attachment of the steam-pipe to the lubricator, might rise from the steam pipe, these devices being simply mechanical variations, all of which embody the principle of my invention.

\Vhat lclaim is 1. In a lubricator, a steam equalizing pipe or conduit, said pipe or conduit rising to a point higher than the level of the steam-pipe which leads from the boiler to the condenser, substantially as described.

2. In a lubricator, a steam equalizing pipe 4. In a lubricator, a steam equalizing pipe or conduit, said lubricator provided with an or conduit located wholly or partially within elongated neck, B, at its top to or near the the body of the lubricator, said lubricator protop of which said equalizingpipe extends, said I vided with an elongated neck, B, at its top to 5 neck provided at a distance below its top with 1 or near the top of which said equalizing-pipe 20 means for receiving a steam-pipe, whereby extends, said neck provided at a distance besteam may be admitted from the boiler, sublow its top with means for receiving a steamstantially as described. i pipe, whereby steam may be admitted from 3. In a lubrica-tor, a steam equalizing pipe i the boiler, substantially as described. 10 or conduit located wholly or partially within In testimony whereof-I sign this specifica- 25 the body of the lubricator, said pipe or tion in the presence of two witnesses.

conduit rising to a point higher than the. ELIJAH MCCOY. levtl of the steam-pipe which leads from Vitnesses: the boiler to the condenstr, substantially 118, N. S. WRIGHT,

.15 described. I SAMUEL E. THOMAS.

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