US566609A - Lubricator - Google Patents

Description

o. W. NASH.

(No MOdGL) LUBRIGTOR.

No. 566,609. Patented Aug. 25, 1896.

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CLARENCE VALTER NASH, OF UNION BRIDGE, MARYLAND.

K LU BRICATOR.

SPECIFICATION forming part of Letterslatent No. 566,609, dated August 25, 1896.

Application filed June 23, 1896. Serial No. 596,636. (No modell) To all whom it may concern:

Be it known that I, CLARENCE liv-'ALTER NASH, cf Union Bridge, in the county of Carroll and State of Illaryland, have invented a new and useful Improvement in Lubricators, of which the following is a specification.

The object of my invention is to provide a simple, practical, and efficient lubricator, or oil-cup, of that class in which the feeding of oil is effected by the intermittent opening of a valve operated automatically by the momentum or centrifugal action of the valve when mounted upon the wrist-pin of a crank or other revolving part susceptible of impart ing such action to the valve.

It consists in the peculiar construction and arrangement of the parts designed with reference to simplicity, ease of construction, and convenient application and adjustment, which I will now proceed to fully describe with reference to the drawings, in which- Figure l is a vertical central section. of the lubrieator; Fig. 2,ahorizontal section through line 2 L of Fig. l, and Fig. 3 a side view of the valve-casing and its adjusting devices removed from the oil-cup.

In the drawings, represents the oil-cup, which has a screw-threaded cap C for closing in the top of the same.

A is the valve-casing, which stands centrally within the oil-cup and serves the double purpose of holding the alve and fastening the oil-cup down to the wrist-piu or other part upon which it is mounted. For this purpose the oil-cup is made with a central hole in its bottom surrounded by a recess c, having angular walls adapted to receive a corrcspondii'igly-shaped boss or projection A', formed on the valve-casing, and from which t-here protrudes through the central hole in the bottoni of the oil-cup a tubular extension A2, having an external screw-thread adapte-d to be turned into a screw-threaded hole in the wrist-pin or other support upon which it is mounted. This angular recess c, receiving the boss A of the valve-casing, permits both these parts to be placed together and then screwed into their support without the use of a special wrench fitting inside the oil-cup, as the latter, through its recess c, acts as a wrench upon the valve-casing and threaded tube A2.

Just above the boss A' the valve-casing has four more or less lateral holes a, which communieate with the tubular extension A2, through which oil is admitted to the point of lubrication on the wrist-pin. 'Within the valve-casing A there is an adjustable sleeve D, screw-threaded on its exterior and meshing with an interior screw-thre ad of the valvecasing A. This sleeve has its upper end fashioned into a nut d, which has a nick d2 in its upper surface, by which it may be rotated by a special forni of screw-driver, or which may be made square or hexagonal to receive a wrench, or it may have a butteriiy-nut, or any other convenient means maybe provided for turning it. Centrally through this sleeve and nut there slides the valve-stem B, carrying the conical valve h and a reduced stem Z1 below it, all made in one piece. This valvestem projects through and rises slightly above the nut d and is grooved peripherally or formed with a knob or head b2, by which it may he seized with the fingers and pulled up in case the valve gets stuck in its seat in the boss A' below. The sleeve D extends a little below the valve-casing A and forms an adjustable stop-shoulder d, against which the upper surface of the valve strikes as it rises to limit its movement.

The action of this oil-feeder is as follows: Then mounted upon the wrist-pin of a wheel, a revolving crank, or other similar part of a machine, on the upper half of the revolution the valve-stem B, with valve b, rises from centrifugal action of its own momentum and a few drops of oil pass through the holes a to the narrow annular space between the valve-stein b and the screw-threaded tubular extension A', and pass to the point to be lubricated. -If it is desired to increase the feed of oil, the sleeve D is raised slightly by turning up the nut d, and the valve l) then rises a little higher If the feed of oil is to be reduced, the sleeve D is screwed down. In such adjustment it is only necessary to unscrew the cap C' of the oil-cup, and the parts are then easily accessible, the protrusion of the valve-stem B above the nut d permitting it to be seized and lifted in a convenient manner whenever it becomes stuck or gummed, and also allowing a free lubrication of the IOC) stem throughout its length, so as to insure its sensitive action. Y

I am. aware that valves have been arranged within oil-cups to rise from their own momentum in revolving about the crank center, and l make no broad claim to this, but only to the peculiar' constru ction and arrangement of parts which make a very efficient, convenient, and practical lubricator.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, isv l. The combination of an inclosing oil-cup and its detachable cap; of a valve-casing A fixed within the same and having lateral openings a and an interior screw-thread eX- tending i'roin said openings to the upper end oi said casing, an adj ustable stop for the top of the valve consisting of a sleeve D arranged within the casing and screw-threaded eX- teriorly its entire length to engage with the screw-threads of the casing, and having a turning nut at its upper end with an opening extending entirely through the same, and a valve-stein extending entirely through this sleeve and projecting above` the top of the nut and carrying a valve below playing between its seat in the casing and the superposed lower end of the adjustable stop-sleeve substantially as and `for the purpose dej scribed.

2. The combination of an oil-cup having a locking-recess in its bottom; of an automatically-moving valve and a casing for the same having a screw-threaded projection extending through the bottom of the oil-cup and a boss or projection iitting within the recess in the bottom of the oil-cup to lock these two parts together for rotary action in screwing on the oil-cup substantially as and for the purpose described.

3. The combination of the oil-cup having recess c in its bottom, and a detachable cap, the valve-casing A with locking-boss A', litting in recess c and locked to the oil-cup thereby, said valve-casing having also screwthreaded tubular extension A2 and inletholes a, the adjustable screw-sleeve D with perforated nut d, and the concentric valvestem B rising through the sleeve and nut and having a valve b and reduced extension b1 substantially as and for the purpose described.

CLARENCE XVALTER NASH.

lVitnesses:

JOHN N. WEAvnR, JOHN HARTsocK.

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