US1264999A - Graphite-feeding lubricator. - Google Patents

Description

w. e. THOMPSON; GRAPHITE FEEDING LUBRICATORi APPLICATION FILED vFEB- 1'3. ISHB.

Patented May 7,1918.

INVENTOR W ATTORNEY rinirnn srafrns rerun WILLIAM G. THOMPSON, O15 NEWARK, OHIO, ASSIGNOR TO THE UNITED STATES GRAPHITE COMPANY, OF SAGrINAW, MICHIGAN, A CORPORATION OF MICHIGAN.

Specification of Letters Patent.

Application filed. February 13, 1918.

To all whom it may concern:

Be it known that I, WILLIAM G. THoMP- son, a citizen of the United States, residing at Newark, in the county of Licking and State of Ohio, have invented certain new and useful Improvements in Graphite-Feeding Lubricators; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in.the art to which it appertains to make and use the same.

This invention relates to lubricators and pertains more particularly to lubricators adapted to feed powdered graphite to steam cylinders.

The improvement relates more particularly to a novel construction of the parts of a graphite-feeding lubricator, whereby graphite will be automatically fed at a pre determined rate from the lubricator into the cylinder while the cylinder is under steam pressure, but when the cylinder is not under steam pressure the lubricator will automatically shut off the feed of graphite to the cylinder.

In general construction and mode of operation my improved device resembles that shown in Patent No. 1,204,145, issued to John W. Eviston November 5, 1916. My improvement, however, accomplishes a different result from that accomplished by the patented device referred to, in that my improved lubricator will feed graphite to the cylinder while under steam pressure, but will automatically shut off the supply of graphite when the cylinder is not under steam pressure.

With the above and certain other objects, which will appear later in the specification, my invention comprises the devices described and claimed and the equivalents thereof.

In the drawings, Figure 1 is a central sectional view of a lubricator embodying my improvement.

Fig. 2 is. an enlarged sectional detail of the standard-orifice plug valve and valve seat.

Fig. 3 is an enlarged diagrammatic view of the opening in the bottom of the graphite receptacle.

As is clearly shown in the drawings, the device consists in the graphite receptacle 1 formed with an opening 2 in its bottom. A threaded boss 3, carried by the receptacle is Patented ltlay F, 191$.

Serial No. 216,885.

formed at its lower end with a recess 4 communicating with the opening 2. In this recess 4- isa ball 5, preferably of smaller diameter than the recess l, capable of free vertical movement.

A slot 6 extending along the side wall of the opening 2 communicates the recess 4- with the interim of the receptacle 1, so that when the ball 5 is at the top of the recess it will not close the slot 6 and consequently the steam pressure will be equalized between the steam cylinder to which the threaded boss 3 is attached and the interior of the receptacle 1.

With the pulsating changes in steam pres sure the ball 5 will rise and fall and graphite will be fed down through the opening 2 past the hall and recess 4: and through a standard. orifice 7 formed in a screw plug 8. The plug is externally threaded and is screwed into the recess l, the upper end of the plug being shaped to form a valve seat 9, upon which the ball 5 will rest when there is no steam pressure in the cylinder.

From the foregoing, it will. be seen that when the receptacle 1 contains graphite and the cylinder is put under steam pressure the pressure will be equalized between the receptacle 1 and the steam cylinder by means of the slot (5, so that a normal flow of graphite will take place into the cylinder, the amount of flow being determined by the size of the standard orifice 7 in the screw plug 8.

When there is no steam pressure in the engine cylinder the ball 5 drops to the seat 9, closing the orifice 7, preventing further feeding of graphite to the cylinder.

If the lubricator is applied to the steam cylinder of a locomotive there will be auto matically supplied to the steam cylinder at predetermined quantity of graphite for each mile run by the engine, but when the throttle is closed and the locomotive drifts the ball 5 will automatically stop the feeding of graphite to the cylinder.

While I have referred to the lubricator as being applied to the cylinder of a locomo tive, it will be understood that it may be equally Well used on any other type of steam cylinder or steam engine.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

In a lubricator, a receptacle adapted to contain powdered graphite, said receptacle formed with a threaded boss adapted to be connected to the cylinder of a steam engine, a recess formed in said boss, an opening therein communicating said recess and receptacle, the Wall of said opening formed With a longitudinal slot, connecting said recess and receptacle, a ball, a plug formed with a longitudinal orifice and received in said recess, the upper end of said plug 10 formed with a valve seat to receive said ball, for the purposes set forth.

In testimony whereof, I afiix my signa ture.

WILLIAM G. THOMPSON.

copies of this patent may be obtained for five cents each, by addressing the Goinmissioner of Patents,

' Washington, D. C.

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