US295757A - Lubricator - Google Patents

Description

y NrrE` TATES PATENT NATHAN nl HEEr, or vALLEY, NEW JEEsEx.

LUBRicAToR.

'sPncIrIcA'i-IN forming part of Letters Patent No. 295,757, dated March' 25, i884.

I Application filed September 11, 18.83. (No model.)

To a/ZZ whom, tm/Ly concern; Be it known thatl, NATHAN H. HEFT, of` Valley, in the county of Hunterdon and `State of N ew Jersey, have invented certain new and useful Improvements in Lubricators, of which the following is a` specication. y l

My invention relates to that class of lubricators (adapted for use with stationary, locomotive, and other engines) whichare automatic in their action, andV in which the oil is fed in regulated quantities to the steam-pipe, whence the oil, mixed with the steam, isconveyed to the steamchest, cylinders, or other point of application.

The operation of my lubricator is dependent upon steam-pressure. x

In the accompanying drawings, Figure l is a vertical longitudinal section of the lubrieator. Figs. 2, 3, and 4 represent` detached details.

Similar letters of reference indicate similar parts in the respective figures.` y A is the oil cup` or chamber,` having ahead or cap, a, and filling-'opening A', `the cap being `united with the bottom of the cup by means of the bolt b, the upper endof the bolt beingscrewed into the boss c, formed as a part of the cap a. The lower end ofthe bolt is also threaded, and'receives a nut, d, which embraces or fits against the lower collar, d', of the cup. In the bolt b is cored a channel, e,

` communicating at e with the interior of the cup A. The channel e, at its `upper end, unites with a channel, e, cored in a part of the cap a, which forms a shank or connection, B. A screw-valve, B', is provided in the port,

being seated in a thimble, a, which is packed` by a nut, a. Within the shank B is a channel, e, which leads directly into the steampipe C, the shank being tapped intothe pipe, as shown. The lower end of the bolt is pro` vided with a horizontal aperture, f, leading to the Vertical aperturef, which communicates with the interior of the drip orblow-off cock g, f ormedas a part of the nut d. y

At the upper part of the cup A, and detachably secured to the under side of the cap a, is a Vdevice used for refining and iiltering the oil before-its passage to the parts to be lul 5o bricated, theoffice and operationof which are hereinafter fully described.

The refining and filtering devices consist of a box, h, (see particularly Figs..2 and 3,) of any desired or suitable shape, having its bottom and sides, oranypart thereof, made open or in skeleton-work, so as to admit oil to the interior of the box. The top of the box is preferably closed, to prevent `the necessity of forming a ground or close joint between the box and the under side 0f the cap, but, if desired, the top of the box may be open. rlhe open bottom and sides of J[he box are covered `with a delicate metallic gauze, z', which is then overlaid by one or more thicknesses of felt, f, i or other iiltering material, whichiin turn is covered by another thickness of ganze, i, the

whole being covered byopen plates i, secured by screws i4. The plates may, however, be differently attached. i

The box 7L is secured to the under surface of the cap c` by a central bolt, k, orother suitable means.

in the sh ank B, which port kfcontinues through the depending branch c, cast as a part of the The bolt 7c is provided with a port, k', which communicates with a port, 7c, i

shank B. The lower end of the branch k extends horizontally` at 7c".

At the top of the part kt isa neck, Z, in whichis aport, Z',which,

lubricant to the engine is represented by m, the screw-valve being situated under the horl-y The screw-valve m works zontal branch kt. in a thimble, m', which is tapped into the branch 7a, and upon the thimble m is a packing-nut, n, a iiexible washer being interposed, as shown by n. The screw valve-stem is provided with a conical point, which seats at the bottom of the port l.

As a part of, and above, the neck l is cast a `vessel,.o, it being connected to the shank B by the neck o. Each side of the vessel o is open, and has a pane of glass,`o, inserted therein and secured by a nut, 0. (See Fig. 4.) l The 'panes are suitably packed to make a steam-joint. The interior of lthe chamber communicates by means of a port, 0*, with the in#` terior of the shank B. The outer end of the .horizontal portion of the port o4 is provided ythe boiler to the engine.

with an inverted conical seat, o5, receiving the end of a screw-valve, o6, which screws in a thimble, o?, packed by a nut, p. The port o* continues past the valve' o*i and leads directly into the steam-pipe. .The length of the thread on the shank B is such as to allow the shank to be carried within to the center of the steampipe, so as to bring the port 0*, as also the port e, centrally of the column of steam.

The operation of my invention is as follows: The cup is first charged with oil, the valves B and m being closed. The port e is arranged to confront and meet the steam owing from The valve B is now opened to its full capacity, and steam at full boiler-pressure enters the cup and mixes with the oil, the oil being immediately brought to a state of ebullition. rlhe steam is held back in the cup by the resistance of 'the filtering medium in the box h, before described. Owing to the course of the steam through the steampipe, there is a less pressure at the exit of the- Consequently the oil is forced by the excess of pressure through the ports 7c and l', the chamber o, and port o to the steam-pipe, it being understood that the flow is regulated by opening the valve m, the valve o6 being at all ordinary times open. Thepassage of the oil through the vessel o may be readily observed, the Water of condensation which collects in the vessel serving as the medium through which the effect of vaporizing the constituents of the oil and of refining and elevating its grade, and also causes the separation and deposition ofthe sediment, which is carried off with the water of condensation through the cock g. The oil which passes to the engine mixed with the steam is ltered and improved in quality.

The lubricator cannot become clogged in its Working, and the points of leakage are reduced to the minimum by virtue of the small number of joints.

Having described my invention, I claim- 1. The within-described method of lubricat-v ing, consisting in admitting steam under boil` er-pressure to a body of oil and forcing the oil through an obstructing body or filtering medium placed in the exit-port by the difference. in steam-pressure existing at lthe two sides of said obstructing body, as set forth.

2. The within-described method of lubrica- 7o tion, consisting in forcing oil to the point of application by subjecting different parts of the apparatus and its connections to unequal steam-pressures.

3. The combination of an oil-cup having a port leading thereto from the steam-pipe, a box, and a filtering medium, said box having a port leading therefrom to said steain-pipe, substantially as set forth. Y

4. The combination of an oil-cup having a port leading to its lower end from the steampipe, a box and filtering medium at the upper part of the cup, having a port leading therefrom, a transparent vessel in said port, and having a port leading to the steam-pipe, andsuitable valves, substantially as set forth.

5. rlhe lubricatoncupA combined with the box h, having open sides, and a suitable filter ing material, substantially as set forth.

6. The lubricator-cup combined with the box h, having open sides, and a filtering medium, and gauze, substantially as set forth.

In testimony whereof I have hereunto set my hand vand seal this 4th day of September, 1883.

'NATHAN H. HEFT. [L s] Witnesses:

`GEORGE H. HOWARD,

Gno. P. KEATING.

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