USRE8740E - Lmpxovemxmt i - Google Patents

Description

Pnrsnr OFFICE.

' NICHOLAS SELBERT, OF SAN' FRANOSCO, CALIFORNIA.

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Specification forming part of Letters Patent No. 94?'780, dated September lll, iei; Rcissur.- No, 8,710, dated .inne 3, i379; application filed August 28, 1876.

.To all whom it may concern,.-

Be it known that I, Ntcnoms Sumner, of the city and county of San Francisco, State of' California, have invented a Self indicating Lubricator; and I do hereby declare the fcl- 'lowing description and accompanying draai.

ings are sufficient to enable any person skilled in the art or science to which it most neariy appertains to make and use my said invention or improvement. without further invention or experiment. i

My invention relates to lubricators more es pecially adapted for use in supplying oil to steam-chests and cyii'nders of steam-engines," where it is always desirable to have a regular and'con'stant 'leed of 'the inni-icant.

,-My invention consists in a novel method of feeding the oil to the cylinders, said feed being accomplished by means of hydrostatic pressure, operating through devices substantially as herein described.

In the general mode of feeding oil to cyl-iin ders, the opening through which the oil passes to the valves or otherparts is the only point where the lubricant is exposed to thc eifect ci' the steam-pressure, and the oil is subjected to constant ebulltion, andan irregularity of fend is a necessary result.

If steam can be applied on each side of the i body ofthe lubricant, so as to produce'a state of equilibrium, and then some constant and regularly-augmented power be brought into operation to disturb this equilibrium in one direction', the oil'will be forced in that direction,-and be supplied with a regularity depending upon the regularity ofthe augmentation of the power used to disturb the equi libriuni of thesteam-pressure on the-lubricant.

One of the powers I use to disturb the steamequilibrium is a hydrostatic column formed by the condensation of steam in an extended pipe to form one of the steam-conncctions to create the equilibrium before mentioned.

The apparatus I use is in the forni ol' a cylinder having a piston, and a piston-rod exi tends fromit through one end ofthe cylinder.

The cylinder is filled with melted tallow or other lubricant through a globe or other cock, the tallow filling all the space at one side oi" the piston, which is pushed back to near the extreme end of the cylinder. A cock behind the piston admits steam from a pipe that passes up and connects with the steam-pipe above the lubricant-eylinder.

-Another cock connects with a .Siphon-pipe, through which the oil passes, leading to a point lower down on the steam-pipe or into the steainchest.

A small scale extends from the front cylinder-head parallel with the piston-rod, andthe divisions show at what rate the piston is moving, and consequently the ainountof the lubricant used per hour.

Referring to the accompanying drawings for 'a fuller explanation of my invention, Figure 1 isa .longitudinal verttcai section of .my appar-abusi Fig. 2 is an end View.

Similar letters of referenceA in cach of the igu res indicate like parts.

A is a cylinder, within which the piston B travels. rlhe pistou rod C extends through the front cylinder-head, being packed so as to not leak. A scale, l), extends from the front cylinder-head parallel with the line 0i' motion ofthe rod O and by the speed with which the rodu passes ,the divisions on the scale the amount of cil or taiiow used per hour is estimated.

A feedingcnp, E, is placed on the top ofthe cylinder, and through vthis the cylinder is filled, the piston being pushed back ncar to the extreme end.

pass, so that the oil will readily enter the cylinder when it is being filled.

Act the back of the cylinder is a cock, G, which admits the hot or condensed steam from the'pipe N, passing upward, and connected with the steam-pipe, in order to create an equilibrium of the piston an'd counteract the pressure through feeding-pipe M and cock H.

'which the steam and water passes, and a short one, e, extending halthrough the key at right angles with the passage e. y y i filon itis necessary to discharge any accumulation of water from condensation of steam in cylinder A or pipe N, the cock is turned so that the passage c connects `with the interior of the cylinderl only or pipe only, when one side of the passage a will comniunicaic with the escape-pipe d, the steam.

A small escape cock, F, allows the air to.

Tine 'cock G is made with a passage, a, through passage or the cylinder being thus alternatelyy cut olf. The steam, becoming condensed in the pipe N, forms a. hydrostatic column behind the piston, and this column, acting ineonjunetion with the steam in pipe N, overcomes the press ure from pipe M, and the pistou is forced slowly and regularly in the direction of the arrow, thus giving a. constant and regular feed of the lubricant through the supply-pipe M, and the continued condensation of the steam regularly augmenting and supplying the hydrostatic column.

The oil or tallow is `forced by the piston out through the cock I-l, from which it passes to its destination. The forms o1' cock to be used are not of especial importance, 35 lthou gh l have made use of globe-cocks for lily present illus-A tration as being the most economical and tight. The amountof oil used in a given time may be seen by a glance at the scale D, which also may show when the supply is exhausted, and

by means of the cocks the escape of oil is so .regulated as to .insure a yconstant supply. i

The apparatus is not liable to get out of re pair, and the saving in the quantity of the lubricant, as well as in wear, is very great.

In applying myinvention to locomotives, or

wherever thclubricant is needed at more than one point, two pistons may be used in the samel cylinder, and pipe N being applied between tially as described, whereby the lubricant is fed loy means of hydrostatic pressure orsteainpressure, or both.

2. The cylinder A, pipe N, and cocks G and H, arranged substantially as describethwhere by the lubricant may be fed by hydrostatic pressure.

3. The method herein described of feedingl a lubricant by means of hydrostatic pressure,

operating through devices substantially as herein shown and explained.

NICHOLAS SEI BERT.

XVitiiesses:

JN0. L. BOONE, A F. O. WEGENER.

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