US556074A - Lubricator - Google Patents

Description

'(NModeL l 2 Sheets-Sheet 1.

H. P. TIPPETT.

` LUBRIGATOR No. 556,074 Patented Mar. 10, 1896.

s atto/anew( -more fully illustrate the operation of my de- UNITED i STATES HAROLD P. TIPPETT,

PATENT OFFICE.

OF COLUMBUS, OHIO.

LUBRICATOR.

`SPECIIEICA'IION forming part of Letters Patent No. 556,074, dated March 10, 1896.

Appiicaion nea April 15, 1895.

To all whom t may concern:

Be it known that I, HAROLD P. TIPPETT, a citizen of the United States, residing at Oolumbus, in the county of Franklin and State of Ohio, have invented a certain new and useful Improvement in Lubricating Mechanism for Locomotive Cylinders and Valves, of which the following is a specification.

My invention relates to the improvement of locomotive cylindei1 and valve lubricating mechanism; and it consists in the improved construction and arrangement of parts fully set forth hereinafter and by means of which the objects of my invention as hereinafter stated are attained.

These improvements I produce in the manner illustrated in the accompanying drawings, in whichp Figure 1 is a side elevation of a portion of a locomotive-boiler, showing my improved lubricating mechanism thereon. Fig. 2 is a plan view of the same. Fig. 3 is a central vertical section of the steam-dome, showing the connection therein of the cylinder supplypipe and the additional or auxiliary steampipe which I employ in carrying out my invention; and Fig. 4 is a detail sectional View of t-he upper lubricator feed-arm, showing the nozzle therein.

Similar letters refer to similar parts throughout the several views.

a represents a locomotive boiler; b, the steam-dome, which rises therefrom in the usualmanner, and c the cylinder-lubricator, which may be supported at the rear end of the boiler in the usual manner.

The lubricator shown and employed in conjunction with my improvement is of that type which consists in a condenser o', the latter communicating in the usual manner with an oil-reservoir c2 located beneath said condenser and connected or formed therewith. The lubricator-bodyis also provided with the usual external sight feed-tubes d and the outlet or feed arms e. Each of these feed-arms contain the usual outlet-nozzle e', which in order to vice I have shown in section in Fig. 4 of the drawings. This nozzle, as is usual, is provided with an exceedingly small discharge-opening e2, which communicates in the usual manner wit-h the tallow-pipes f. As indicated in the Serial No. 545,703. (No model.

drawings, these tallow-pipes, of which there are two, lead downward and forward on opposite sides of the boiler and communicate with the steam-chests f' in the usual manner. vThe lubricator-condenser c is provided with an extension-top g, from the upper end portion of which leads to each of the upper lfeed-arms e an equalizer-pipe g.

This pipe extension g and condenser are fed in the ,ordinary mann er by a constant supply of steam from the boiler through the medium of the usual feed-pipe g2.

h represents the cylinder steam-supply pipe, which rises within the steam-dome b, as indicated in Fig. 3 of the drawings. The upper end portion of this steam-pipe h is provided with the usual throttle-valve h. From the pipe h, and preferably from a point in its upper portion, leads a smaller steam-pipe h2, the latter extending outward and rearward through the side of the dome b and having its outer end connecting, as indicated at h2, with the central portion of a substantially U- shaped pipe-arm h4, the downwardly-extending portions of which embrace opposite sides of the rear portion of the boiler and connect, by means of suitable Y-couplings i, preferably with the rear portions of the tallow-pipes f.

As is usual in the class of lubricating devices to which my invention pertains, the

condenser c and its extension g are provided with a constant supply of steam from the boiler through the medium of the pipe g2, and the equalizer-pipes g', which lead into the feed-arms e, furnish steam supplies which meet the oil in the upper feed-arms, said oil being, as is usual, driven to said feed-arms through the pressure within the body of the lubricator and the weight of the water in the condenser. The construction and operation of this form of lubricator are, however, well known, and for that reason I do not deem it necessary to give a detail description of the same.

The feed-arm nozzles e', which are provided with the exceedingly small dischargeopenings, serve in the usual manner to equalize the pressure within the lubricator, said nozzles also acting as atomizers in the discharge of the combined steam and oil in the form of spray into the tallow-pipes f. Owing to the fact that the steam supply for the lu- IOO bricator is directly from the boiler, it is evident that the escape of steam and oil through the feed arm is substantially continuous, even though the throttle-valve be closed and the engine is motionless. When the throttlevalve is open and the steam is thus admitted to the steam-chest, it has been found that the small volume of steam which escapes through the nozzle condenses within the t-allowpipes at or near the poi nts 5, (indicated in the drawings,) resulting in a reduced pressure of the steam therein. This reduced steam-pressure is not suiiicient to resist the back-pressure of steam from the steam-chest, with the result that the steam from said chest, rising in the talloW-pipes and meeting the condensation therein, also becomes condensed. In this manner the tallow pipes become iilled or choked with oil and water and are thereby rendered useless.

By the use of the pipe 7b2 and its branch 711" it will be seen that a connection is formed between the supply-pipe 71l and the rear portions of the tallow-pipes f, these connections being made, as indicated, at points near the points of condensation referred to in said tallow-pipes.

Owing to the fact that the pipe 7F has no communication with the steam-dome,bnt with the supply-pipe 7L', it is evident that the tallow-pipes are not supplied with the additional volume of steam through said pipe 71,2 unless the throttle-valve is open. Vhen the throttle -valve is open, however, the additional steam-pressure supplied through the medium of the pipe h2 to the tallow-pipes results in a forcing of anyeondensed steam or other matter contained in the tallow-pipes to the steamehests and in a consequent clearing of said pipes. This additional steam-pressure, as

will readily be seen, serves to overcome any back-pressure from the steam-chests and assists the lubricator in its work of providing a uniform discharge of the oil into said chests and cylinders.

It is evident that the direct connection of the tallow-pipes with a constant steam source, such as the steam dome or boiler, instead of with the pipe 71, must result in the tallowpipes being supplied with steam-pressures which would be almost if not entirely sufficient to move the engine. By the construetion and arrangement of parts which I have shown and described it will be seen that this additional steampressure in the tallow-pipes is had at such times only as the steam-pressure is necessary.

From the construction and operation of my improvement it will be observed that simple, reliable and effective means are provided for supplying a uniform discharge of oil from the lubricators to the steam chests and cylinders and that by its use the equalization of press ure within the lubrieator is in no wise inter- Eered with.

Having now fully described my invention, what I claim, and desire to secure by Letters Patent, is*

In a lubricating mechanism for locomotive cylinders and valves the combination with a locomotive-boiler, steam chests and cylinders, an oil-discharging lubrieator and tallow-pipes leading therefrom to said steamchests, of a steam-pipe leading from the cylinder supply-pipe at a point between the throttle-valve and cylinders into said tallowpipes at points on the outer side of the lubrieator-nozzle, substantially as and i'or the purpose specified.

C. C. SHEPHERD, WALTER B. PAGE.

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