US12290A - photo-litho - Google Patents

Description

Nia

. JOHN SUTTON, OF NEW YORK, N. Y.

LUBRICATOR FOR; STEAM MACHINERY.

Specication'of Letters Patent No. 12,290, dated January 23, 1855'.

To all 'whom t may concern:

Be it known that I, JOHN SUTTON, yof the city, county, and State of New York, have invented la new and useful improvement in greasefeeders for lubricating the cylinders, valve-seats, and other parts of steamengines, and other apparatus subject to fan internal pressure greater than the atmosphere without stopping their operation; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawing, forming part of this specication, in which- Figure 1, is a section through the center of agrease cock constructed according to this invention, which, to distinguish it from another invention of mine for the same purpose I will denominate No. 2. Fig. 2, is an outside view of the piston detached from the feeder.

Similar letters of reference indicate corresponding parts'in both gures.

This invention consists firstly in the arrangement of the cylinder and piston which is employed to inject the oil or grease into the part of the engine or apparatus requiring to be lubricated, within or inthe bottom of the reservoir or vessel containing the y oil or'grease, whereby the feeder is rendered much more compact and simple than other feeders acting on a similar principle.

It consists secondly in a certain arrangement of valves whereby the feeder is charged with oil or grease and discharged into the engine or apparatus by simply moving its piston once back and forth.

To enable those skilled in the art to make and use my invention I will proceed to describe its construction and operation.

y A, is a reservoir; B, the cylinder and C, the piston. The reservoir is supplied with oil at the top,through openings o, Zn, in the bottom of a small cup a, into which the oil is poured. This cup forms a covering to protect the oil in the reservoir from dirt. The cylinder B may be cast with or tted into the reservoir, being placed in the center of the bottom. It'may stand up within the body of the reservoir as'shown in the drawing, or be entirely below it, butl is preferable that it should stand up some distance above the bottom of the reservoir in order that a space may be left around it for the collection of sediment, to prevent any dirt entering the cylinder to interfere with the valves v or to injure the surfaces to be lubricated. The upper end which enters the reservoir is open, and from the lower end leads the passage c, through which oil is ejected from the reservoir against the pressure of steam or other motive agent. At the entrance to the passage c, there is a valve d, which will be closed by the pressure of steam, but has a spring e, applied to it, to prevent its opening and allowing the escape of oil when the engine or apparatus is not in operation. The piston C,.is hollow and furnished with a valve f, which opens downward or toward' the discharge end of the cylinder. This valve has a spring g, applied to close it. The piston rod It, works through a guide i, in the center of the top of the reservoir and is furnished with a knob or handle outside. At asuitable distance above the piston, an india rubber or other spring j, is attached to the rod in order to serve as an elastic stop to arrest the upward movement or retraction of the piston. The guide z', is intended to serve as a vent in filling the reservoir and therefore it should reach above the top of the cup a, and the piston rod should fit it easily. l

The oil is fed by simply :retracting the piston by hand from the discharge end to-' ward the entrance of the cylinder and then returning it. .The piston is shown in Fig. A

1, in black outline in the act of retraction and in red outline in the act of return-ing. The retraction of the piston causes a vacuum to be formed in front of or below it and thus causes the valve f, to open, and the oil to rush from the reservoir through the piston, as indicated by the black arrows in Fig. l, the valve d, in the mean time remaining closed. The return of the piston causes the valve f toclose and the valve d, to open, and the oil below or in front of the piston to be ejected through the passage c.

The arrangement of the cylinder and piston of the feeder within the reservoir with a guide for the piston rod in the top of the reservoir not' only makes the feeder more compact but\` simplifies the construction. The arrangement of the two valves in the piston and discharge end ofthe cylinder enables the oil to be fed while the engine is running by one movement back and forth of the hand of the engineer which in locomotive engines is a great advantage. All other feeders ,for a similar purpose known kto me require at least two movements either in the piston opening toward the discharge end of the cylinder, and a valve d, in the discharge end of the cylinder, opening against and closing with the pressure of the steam or motive agent substantially as described, whereby it is caused to be only necessary to move the piston once back and forth to charge and discharge the feeding cylinder, and the lubrication is effected more quickly and With less trouble to the engineer.

JOHN SUTTON. Vitnesses:

GEO. W. ARMSTRONG, EDWARD CLARKE.

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