US40433A

US40433A - Improved lubricator

Info

Publication number: US40433A
Authority: US
Publication date: 1863-10-27
Anticipated expiration: 1880-10-27

Description

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JOHN R. SEES., OF PHILADELPHIA, PENNSYLVANIA.

liVlPROVED LUBRICATOR.

Specification forming part of Letters Patent No. 40,433, dated October 27, 1863; antedated October 10, 1863.

To @ZZ whom it may concern:

Be it known that I, JOHN R. SEES, of the city of Philadelphia, in the State of Pennsylvania, have invented a new and Improved GreaseCup for Lubricating the Valves of Locomotives and other Steam-Engines, and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this speciiication, said drawings representing a central vertical section of the cup.

This invention consists in a novel system of valves applied in combination with a tube occupying a iixed position within the cup, whereby every time the steam is shut off from the engine a certain accurately regulated or measured quantity of grease, and no more, is automatically supplied to the steam-chest by being displaced by condensed steam, thus insu ring proper lubrication of the valve as often as and at the very time required without any waste.

It also consists in furnishing the cup with an independent screw socket, which enables it to be adapted to any steam-chest without putting the cup in a lathe to cut a screwthread upon its bottom.

To enable others to make and use my invention I will proceed to describe its construction and operation.

A B C is the body of the cup, represented as composed of a thick cylinder, B, of glass, and a bottom, A, and top C of brass, but it may be made entirely of brass. The parts A, B, and C are held together by means of a central tube, D, and nut a, the central tube screwing tightly into a hole in the bottom A, and passing through a fixed bridge, b, formed across the top C, and the nut c being screwed onto the tube above the bridge?) and brought down tight upon the bridge. A vulcanized india-rubber or other soft packing, c, is used between A, C, and B. rIhe l top C is iitted with a movable cap, E, to provide for the tilling of the cup with oil or tallow.

F and G are two valves connected by a stem, ci, passing through the tube D, one fitted to a conical seat in the bottoni A of the cup and closing in an upward direction, and the other' to provide for its being lengthened or shortened, and thereby regulating the amount of movement of the valves. The lower valve, F, tits perfectly tight to its seat when closed; but the seat of the upper valve is notched, as shown at f f, so that the said valve is never perfectly closed, its duty being to serve as a stop to regulate the opening movement of the lower valve, and to prevent the oil or tallow from running into the tube D, as it is being poured into the cup, and were it not required to serve the latter purpose, the upper part of the stem might be simply furnished with lugs or have a pin inserted transversely throughit as a substitute for the upper valve.

H is a valve, which I call the atmospheric-7 valve, tted into the cap E, and closing with an upward movement. This valve has astop, g, at the top of its stem to limit its opening movement; but the top of the cap is so notched externally, as shown at h h, that the said stop does not close the opening therein when the valve drops.

I is a cock in the bottom of the cup for emptying it.

E is a socket, which has screwed into it a nozzle, t, provided on the bottom A of the cup, and which is itself provided with a nozzle`, j, screwed into a tapped hole in the steamchest or steam-chest cover J.

To set the cup in operation, it is iilled with oil or tallow up to the level of the top of the tube D. While the steam-chest is open to the boiler and filled with steam, the pressure of the steam keeps the valve F closed; but the valve His kept open by the pressure of the atmosphere aided by its own weight. Whenever,in the running of the engine,the steam is shut off from the steam-chest, the valve F is opened by the pressure ofthe atmosphere aided by its own weight and the weight of the stem dV and valve G. When steam is again admitted to the steam-chest it closes the valve F again; but before it can close the valve some escapes through the tube D into the upper part of the cup and closes the valve H, which prevents its escape from the cup. This steam, being shut into the cup by the closing of the valve, soon condenses, and the water of condensation sinks below the grease which iioats on its surface and rises above the level of the tube D, down which it flows by gravitation, remaining in the said tube, or the passage in the bottom A below it,until the steam is again shut off, When the valve F being again opened the grease runs into the steam-chest. The valve H opens when the steam has been condensed, or partially condensed, in the upper part of the cup, and so admits the pressure of the atmosphere upon the grease at all times but While the steam is uncondensed in the cup, itbeing desirable to catch or trap all the steam admitted to the cup, as it isby the Water resulting from' the condensation of suoli steam that the grease is raised above the level of and caused to flow into the tube D. lf, in the ordinary running of the engine, the steam is not shut oftI as often as it is desirable to lubricate the valve, the lubrication may be effected by simply shutting off and letting on the steam again'very quickly. The quantity of oil supplied at a time is regulated by the quantity of steam admitted to the cup, and this is regulated by the amount of movement permitted to the Valves F G by the adjustment of their stem at e, a longer movement not allowing the valve F to close so quickly when steam is admitted to the steam-chest, and so Aallowing more steam to pass into the cup and a shorter movement allowing the said valve to close more quickly and less steam to pass into the cup. grease remains in the cup, the grease iioating on the top of the water as the cup fills up with the latter. When all the grease is out, which may be easily seen when the body B of the cup is made of glass, the Water is drawn off by opening the cock I, and the cup is refilled with grease by taking off the cap E, and pouring itin.

The independent screw-socket J enables the This operation continues so long as any n cup to be adapted to any steam-chest. The' screw-thread on the nozzle j of this socket need not be cut until the cup is to be applied,when the socket may be chucked in a lathe and the said thread be eut to fit any hole that may be tapped in thel steam-chest for its reception, and the cup is thus enabled to be adapted to any steam-chest Without putting it in a lathe and running the risk of breaking the glass or otherwise injuring or marring it.

That I claim as my idvention, and desire to secure by Letters Patent, is-

1. The construction of agreasecup to effect the supply of grease in a measured quantity every time the steam is shut off from the eugine by displacing such quantity from the cup by a quantity of water resulting from the condensation of steam, which is admitted to the cup by the act of letting on steam to the engine, substantially as herein described.

2. The valves F and G and tube D, applied in combination With each other and with the cup, substantially as and for the purpose herein specified.

3. The tube D and nut a, applied, substantially as described, to serve as a means of connecting the different parts of which the cup is composed.

4. The atmospheric valve I-I, applied in combination with the cup, substantially as and for the purpose herein specified.

5. The independent screw-socket E, applied in combination with the cup, substantially as and for the purpose herein set forth.

JOHN R. SEES.

Vitnesses:

J onN WHITE, WVM. B. SNYDER.