US242327A - jewell - Google Patents

Description

(No Model.)

0. H. JEWELL.

. Lubrioator.

No. 242,327. Patented May 31,1881.

IJ'NITE STATES PATENT ()FFIcE.

OMAR H. J EWELL, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO WILLIAM M. MATHISEN, OF SAME PLACE.

LUBRICATOR.

SPECIFICATION forming part of Letters Patent No. 242,327, dated May 31, 1881.

Application filed April 5, 1881. (N0 model.)

To all whom it may concern:

Be it known that I, OMAR H. JEWELL, of Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Lubrieators, of which the following is a specification.

The object I have in view is to produce a lubricator having its valve actuated intermittingly by a connection with a working part of the machine, which will be simpler and more direct in its action than lubricators of the same class heretofore, and when used on a crankpin or eccentric will not allow any oil to work out through the top of the cup.

My invention consists in the peculiar devices and combinations of devices employed by me for this purpose, as fully hereinafter explained, and pointed outby the claims.

In the accompanying drawings, forming a part hereof, Figure 1 is an elevation of my lubricator mounted in position for oiling a crankpin; Fig. 2, a cross-section through the crank and the strap of the connecting-rod, the crankpin and lubricator being in elevation; and Fig. 3, a vertical section through the lubricator detached.

Like letters denote corresponding parts in all three figures.

The lubricator is constructed with a circular base, A, having a screw-threaded stem, a,which turns into the upper side of a connecting-rod or eccentric-strap, and supports the lnbricator in an upright position. A vertical oil-hole, 1), extends centrally through the base A an d stem (1, and is countersunk at its upper end to form avalve-seat, b.

B is the circular cap of the lubricator, and C is a glass tube clamped between the cap and base. The glass tube C rests against packingrings 0, laid in shoulders or grooves on the base and cap, and such base and cap are connected outside of the glass tube by rods D,"which have screw-threaded lower ends for receiving nuts. The nuts on the rods D are turned tight, so as to draw the base and cap close against the ends of the glass tube and form close joints therewith.

A thin metal diaphragm, E, is clamped in the upper joint, and prevents the splashing of the oil up into the cap.

This diaphragm di vides off from the body of the lubricator the chamber E in the cap, into which chamber very little, if any, oil is thrown by the movement of the lubricator.

F is the valve-rod, which passes through a stuffing-box, d, in the top of the cap 13, down through the body of the lubricator, and into the oil-hole b. This rod has a conical valve, 0,

a short distance above its lower end, which rests on the valve-seat I), and prevents the flow of oil into the passage 11. The upper end of the valverod, above the stuffing-box d, is screw-threaded, and passes through the inner end ofa horizontal arm, G, being provided with adjusting and clamping nuts f above and below said arm. At its outer end the arm G is secured to the operating-rod H by means of a set-screw, g, so that it can be adjusted thereon. The operating-rod H is guided by means of two eyes, it h, which project from the cap and base. Below the eye h a spiral spring, I, is sleeved on the operating-rod, and is held up against the eye it by a collar, 2', secured adj ustably to the rod H by one or two set-screws, i. This spring forces the operating and the valve rods downwardly and presses the valve 6 to its seat b.

The lubricator has a screw-plug, k, on its cap, which is removed when it is desired to fill the lubricator with oil. Through this screwplug is formed a small vent-opening, l, which opens into the chamber E at one side thereof.

This vent-opening admits air, so that the oil can flow from the lubricator, and by reason of its connection with the chamber E at or nea-r the side thereof the oil cannot be forced through it. The opening in the diaphragm E around the valve-rod F has to be large enough so that the oil, when poured in the filling-opening, will run down into the body of the cup. WVhen the cup is used on the crank-pin of a fast-running engine the oil, during every downward movement of the crank, is thrown violently against the diaphragm E, and up through the central opening around the valverod. The stuffing-box (I, however, prevents it from being forced out of the cup around the valve-rod. If this stuffing-box were not used,

the oil would all be forced out of the top of the cup in a short time.

K is the crank of a steam-engine; L, the crank-pin, M the connecting-rod, and N the strap.

The stem a of the lubricator is secured into the upper portion of the strap N, the opening that receives it being extended through to the crank-pin. The lubricator is turned so as to bring its operating-rod over the head of the crank-pin. To such crank-pin head is secured a beveled lifting-plate, O, which, once in every revolution of the crank, lifts the operatingrod H, and through the connections described raises the valve from its seat, allowing a certain quantity of oil to flow into the passage b. After the lift-plate passes the operating-rod it is forced down by the spring I, and the valve is closed, shutting off the flow of oil.

By means of the adjustment of the valverod in the arm G of the operating-rod in such arm and of the collar i on the operating-rod, the parts can be set so that only the amount of oil necessary for thelubrication of the crankpin will be fed from the lubricator.

The working of the lower end of the "alve- 'rod in the passage b prevents the oil from clogging therein.

hen the engine is stopped the lubricator will not allow any oil to run out of it, since the lift-plate is arranged on the crank-pin so as to strike the operating-rod when the crank is on the dead-center and is moving upwardly, at which point the engineer will be careful notto stop the engine.

This same lubricator is also well adapted for oiling eccentrics, the stem of the lubricator being screwed into the eccentric-strap, and the liftplate being secured to the side of the eccentric and engaging with the operating-rod when the crank ot' the engine is on a dead-center.

The direct tripping device used by me for operating the valve enables the lubricator to be used for oiling the pins of double cranks, and also for oiling stationary bearings at the center as well as the ends of a shaft.

What I claim as my invention is- In a lubricator, the combination, with the val ve-rod F, arm G, operating-rod H, and spring I, of the beveled lift-plate or projection 0, located on a revolving part of the machine and striking the lower end of the operatingrod, so as to lift the same directly, substantially as described and shown.

2. In a moving lubricator, the diaphragm E, dividing off the chamber E in the cap from the body of the lubricator, in combination with an air-vent entering said chamber, substantially as described and shown.

3. In a moving crank-pin lubricator, the combination, with the cup, of the diaphragm E, forming the chamber E in the top of the cup, the working valve-rod F, passing through such diaplnragm and the top of the cup, the stuffingbox (I, and vent'openiug l, substantially as described and shown.

This specification signed and witnessed this 31st day of March, 1881.

OMAR H. JEWELL.

Witnesses; V

F. W. KASEHAGEN, OLIVER W. MARBLE.

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