US109908A - Improvement in lubricators for steam-engines - Google Patents

Description

. debited 52mm @anni @biblica FRANGS JACKSON-0F WIGAN, AssICNoa 'ro WILLIAM reossnn, on

MANCHESTER, nivo-LAND.

Letters Patent N0'.,'109,908, dated December 6,1870.

IMPROVEMENTl IN LUBRICATORS FOR STEAM-ENGINES.

The Schedule referred to in these Letters Patent; and making part of the same.

l, FRANCIS JACKSON, of Wigan, Lancashire, Engr` land, have invented certain new and useful Improvements in Lubricating Apparatus for Steam-Engines,

of which the'following is a specification.

My invention relates to apparatus for lubricating the pistons and valves of steam-engines.

In the drawing- Figures l. and 2 are an elevation and vertical central sectiouof my improved lubricating apparatus.

l Figures 3, 4, 5-are similar sections, which illustrate modiiications of the said apparatus, and which are liereiiiaftex-fully described.

I n the apparatus illustrated in figs. 1 and 2 a cup, a, is fixed on the top of an oil-vessel or reservoir, and has a screwed valveor top, which opens or closes the communication between the cup and the reservoir.

The valve or tap is so arranged that when it is screwed down ou its'seating it opens a Communication between the cup a and the vessel g, andat the saine time closes the space d, while the movable valve or disk c', placed ou the top of the central tube h, is lifted'so as to permit the escape of condensed water down the same tube, the pressure of the-oil from the cup to the reservoir having forced it up through the space c, which is between the two tubes.

In cases where a vacuum `is created, the movable disk c is drawn down and closes the'central tube h, thus preventing the escape of the oil iu the cup by means of a vacuum. v

.lhe central tube h has a metall-ic casing, k, which I is adjustable vertically. By screwing it downward vor upward the space for the condensation of steam is increased or diminished, and although I prefer to use a commontnhe, h, for the admission of steam andthe emission of oil and condensed water, I do not deem this arrangement absolutely necessary, for the steampipe may be made to renter the side ofthe upper portion 'of the reservoir, while the central tube h, after being provided with a steam-tap below and outside of the reservoir, may be used for the sole purpose oi' passing the condensed water out of the lubricator.

4Although I' prefer at present to use two tubes iu the positionindicated iu iig l, I mayuse one or more tubes, either placed along the central tube Cr concentrieally with it.

In cach modiiication of my displacement-lubricators a small tube communicates between the oil-chamber and outcratmosphere for the removal of compressed an'.

In the modification of my invention, illustrated in ng. 3, I employ a `reservoir or vessel, g, fitted with a plug having a eup,ra, at the top. The tube of this cup is bored down the center from the top, and then transversely to the side of theplug. LllisA tube is scribed above is in' communication with thel opening m, and the oil ills the space y. If at the time the reservoir be full of water, resulting from the condensa- -tion of steam, as is the oase with all displacementlubrioators, that water will be removed by the imere pressure of the oil on the surface ofthe water, the latter being forced up into the tube c andout through the tube h. By turning the handle 5;' till it is in a unev with another point marked on the disk, the opening to m is closed, and the opening j) is opened, so that a communication is made between the reservoir and'tub h, while atrthe Sametimethe'communication which' existed between the cup a and the reservoir is interrupted sothat steam .issuing through the tube e cannot escape out of the vessel. `rLhis steam condenses through the tube c. The plug is made steam-tight -by metallic packing.

I modify the above arrangement so that the lubricator may be filled when steam is admitted into it, (see iig. 4.) For this purpose the oil-space orrese`r v'oirl is divided transversely into two chambers, which are therefore vertically one above the other.

In-this'modicatiou a cup, a', is placed at the upper end ot a'tube, m,\vhich is screwed through a metallic stuffing-box iu the top of and communicating with the upper chamber'l. rlhe lower end of this tube is made solid, and forms a valve, b, to open or close the cornmuuication between the two Chambers l and g.

y The tube 4is provided with a stopftap, a', beneath the cup, and when the tube m is screwedv upward so bers, and the tap is opened, the upper chamber l may be filled lwith oil or melted tallow. The tap a is then Closed and the tube screwed downward, so as to allow the oil to flow into the lower chamber g. IIhis lower chamber is provided with prccisel y the same arrange- ,soribed and illustrated in fig. 2, consequently the processes of condensation, displacement of oil, and removal of condensed water are similarly effected.

marked on a disk below it, when the bent tube de-f and falls in drops of water to the bottom of the cup,A and thus the oil is forced upward and passes outI as to close the communication between the two cham-v ment of tubes and valves as the reservoir already de- Fig. 5 illustrates the arrangement of my apparatus as a vacuum lubricator. lf the contents of this lnbricator are to be entirely and suddenly removed, this may be done by turning up the handle m, placing the tube h in continuous connection w ith the tube t. Any condensed water present may be thus" removed.

Although I iind the above arrangements of tubes. convenient, I doV not Vlimit myself thereto, but may place the valves and tubes in other situations, and

may increase or decrease their number.

A tube, t, is arranged Vwith its highest pa'rt level with the top oi'. the reservoir. The oil from the reservpir passes into this tube by capillary attraction through a cotton-wick, u. The size of the wick reguwidened space p above it, and thence it passes along the tube t intothe cylinder.

This lnbrie'itor is well adapted forliv-pressure engines. e y

' lhe regulation of the oil is eected by meansof the fixed perforated valve s, which may be sclvewed up "or down, and thevspacep may be Vthus increased or diminished.

Claims.

I claim.as my invention- 1. A tube or tubes placed concentrically around the central tube l1., through which. steam is admitted, and in combination with a'valve or valves, substantially as shown in lig. 2, and for the purpose set forth.

l2. The'njethod of increasing the condensation of steam, and, con'sequently,the displacement of the oil by means ofthe metallic casing It, adjustable upward and downward, substantially as set forth.

3. The employment of' the valveor disk fr, toprevent the escape l.of any oil in cases where a vacuum is created in the steam-pi pe or steam-chest, substantially as set fort-li.

4. The plug an, with holes bored in'it in combinaton with the tube h, for the removal of the condensed water from hecup, substantially 'as set forth and illustrated in tig-3. v

5. A lubricator, as shown in iig. 4, with two chambers, one above the other, to be successively iilled, substantially as and for the purpose set forth.

6. The perl'brated tube m, with a solid end, b, acti ingas a valve, the said tube communicating with 4the uppery chamber, and the valve being between the two chambers, substantially as and for the purpose set forth.

f7. 'The tube'or tubes placed coucentrically around a central tube, h, in combination with the aforesaid valve la, and without any opening in the side of the cup, substantially'as and for the purpose set forth.

8. rPhe upright tube, valves, and cotton-wick, substantially as shown in fig. 5, and for the purposes set FRAN GIS JACKSON.

forth.

Witnesses l Tues. P. BnAss. J. J oHNs'rox,

Olm-7:5 to Messrs Broclvbanlt & Helder,

Solicitors. 'Tl/'hitehaven

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