US352026A - allton - Google Patents

Description

(No Model.) 3` Sheets-Sheet 1.

H. ALLTON,

LUBRIGATOR. No. 352,026. l Patented Nov. 2, 1886.

(No Model.) r

H. ALLION.

3 Sheets-Sheet 2.'

4 3 Sheets-Sheet 3. HAL-LWN.

LUBRIGATOR.

(No Model.)

No. 352,026. Patented Nov. 2, 1886.`

lzveztar Hiram Jillianv 'witnesses' `NA Pneus. Pnmvuvmplpn-r. wuhingnm. n.6.

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UNITED STATES PATENT OEEICE.

HIRAM ALLTON, OF WILMINGTON, DELAVARE, ASSIGNOR OF ONE-HALF TO JOSEPH E. HILDRETH, OF SAME PLAGE.

LUBRICATOR.

SPECIFICATION forming part of Letters Patent No. 352,026, dated November 2, 188.6.

Application filed July 15, 1886. Serial No. 208,122. (No model.)

To all whom it may concern:

Be it known that I, HIRAM ALLTON, a 'citizen of the United States, residing at Wilmington,- in the county of .N ew Castle4 and State of Delaware, have invented certain new and useful Improvements in Lubricators; and I dohereby declare the following to be afull, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters ortlgures of reference marked thereon, which forni apart of this specification.

This invention relates to the class of lubricators which employ live steam to drive the oil from a measuring-chamber, that is automatically illed with oil from the oil-cup, to the steam-cylinders, and it is an improvement upon the lubricator for which Letters Patent were granted to me June 18, 1878, and April 17, 1883. In both of said prior patents the measuring-chamber is a recess formed in the face of aat plate that rotates in contact with an opposite at surface provided with ports, by means of which the oil-receptacle is alternately lled with oil and emptied by the steam; but it is very difficult and practically impossible to preserve a perfectly-tight joint between two such iiat surfaces under the varying conditions to which a lubricator is subjected on a locomotive-engine. The constant jar and the variable heads of steam under which the lubricator is used soon cause it to leak. Lubricators of this class have been tried having an oil-cock provided with ports and an interior chamber; and the present in,- vention relates more particularly to this class of lubricators. In thosethat have been heretofore tried, however, they have as a rule been made with a conical cock; but the same difticulty is experienced in preserving a tight joint with a conical cock under the strains and changes of steam to which. they are subjected as with the fiat plates, it being difficult to turn them true, andv they wear unevenly, faster at one end than at the other,and soon leak, requiring packing at both ends. In the relative change of the ports in a conical cockv tion.

The obj ect of this invention is to avoid these defects and to produce a lubricator for locomotives which will at all times be tight, and which will work under a varying head of steam; and to secure this I make the oil-cock 5 5 cylindrical and place the entrance and exit ports in the shell adjacent to each other and close together, "and opposite thereto, on the side where the steam is taken in, I construct the side of the cock-chamber with a movable plate, which -compensates for the wear ofthe parts and preserves a tight joint.

rThe invention further consists of certain improvements and details of construction incident to the feiiicient and convenient operation of the machine, whereby it can be placed on either side of the boiler and both cylinders oiled by one and the same lubricator, all as hereinafter described and claimed.

In the accompanying drawings, Figure l is a front elevation of a lubricator constructed according to my invention. Fig. 2 is a vertical transverse section of the same, taken on the line x c of Fig. 1. Figi?) is a cross-section taken on the line y y of Fig. 2; and Fig. 4 is a longitudinal cross-section through the oil-cock, with the entrance-port c in communication with the port b of the oil-cup.

A is the oil-cock, on the top of which there is attached the oil-cup B, from which the oil- 8o passage b leads to the oil-cylinder C. On the back side of the oilcock there are two clampbars, D, each having screw-bolts d at their 4 ends, by means ot which the lubricator is attached to the standard E. This standard E is slightly curved near the bottom, as shown, and it is made lwith a foot-plate, e, by means of Y which it is bolted to the boiler. If the lubricator is to be attached to the right-hand side of the boiler, the standard is placed with the foot-plate in front, as shown in the several views, the curve in the standard when it is attached to the curved surface of the boiler bringing the lubricator into 'a vertical posi- If it is desired to locate the lubricator on the lefthand side, the standard E is turned around in the clamp-bars D, and it is bolted to the boiler with the foot-plate e behind.

The oil-cup is provided with a gage-glass, b', and with an emptying-cock, b2. The oil-cyl- Ioo inder C is a true cylinder, and it is provided with an oil-port, c, on the upper side and steamports c on the lower side, these ports being diametrically opposite to each other. Preferably two circular steam-ports, c', are provided; but it is immaterial whether there be one or more, or whether they be round openings or a long slot. On the front end ot' the oil-cylinder there is a projecting hub having a central groove, c2, like the slot in the head of a screw, which receives a bar, j", carried by the spindlefof the handle F.

The covering-plate G its over the front of the oil-cylindei-,and it is provided with astul't'- ing-box, through which the spindle f passes; and it has a dowel-pin, g, that enters a hole in the oil-eock A, to prevent the plate from turning and to insure its being put on in the right position. On the front of this covering-plate there are two projecting stop-pieces,(n1arkcd L and R, respectivcly,) which limit the movement of the handle F to one side or the other, thehandle having a projecting piece, f2,which engages with these stops. The plate G is fastened on by means of a coupling-ring,G, which screws onto the oil-cock A.

The ports a. a3 ofthe oil-cock, on opposite sides of the oil-passage I), are the exitports for the oil, each leading to one of the engine-cyl* inders-the left-hand port through the pipe M to the left-hand cylinder and the right-hand port through the pipe Nto the other cylinder. Each of these pipes is provided with the customary check-valves, m and n, incased in unions. The two ports a3 are placed as close to the central port, b, as practicable, due provision being made for the lap of the valves. Thelowerhalf of the inside face of the oil-cock is cut away from the point a* round to a?, and the oil-cylinder does not have any bearing between those points, except what is furnished by the spring-pressed shoe H on the under side of the oil-cylinder. This shoe supports the oil-cylinder and holds it against its seat, and also acts as a valve for closing the steam-port c'. It is supported by an adjustable screw-pin, z,which extends down through a stufiingbox to the outside of the lubricator, and has a perforated head to enable it to be adjusted with the aid of a turning-pin. The point of the screw-pin h sets into a socket on the under face of the shoe H. Underneath the shoe H thereis a double leafspring, I, held in position by the pin h, passing through a hole in the same, and also by asmall screw-pim It', projecting from the rear end of the shoe and engaging with a slot in the end of the spring. The leaf-spring I rests on a shoulder on the pin h.

The steam-inlet port is at 7.', the steam entering from the steam-pipe K under the shoe H. In the steam-pipe K there is placed a valve, k', which is supported by a spring, k2, that holds it against its seat. In line with the valve k,and resting on top of it,there is a pin, Z, the end of which projects up through into a chamber behind the oil-cylinder, where it engages with a cam, O, on the rear side of the oil-cylinder. (Shown in dotted lines in Fig. 3.) This cam has two projecting faces, o and o, one engaging with the pin Z when the oil-cylinder is turned in one direction, pressing it down and opening the steam-valve 7.x', and the other when the oil-cylinder is turned in the other direction.

A union-coupling, t', at the bottom of the steam-pipe K couplesto the T-shapcd connection t, which latter has the union-coupling t2 below for one branch ol" the drip-pipe It', and a union-coupling, t, by means of which connection can be made to a steam-pipe in any position that may be desired. The drip-pipe R' is coupled at one end to the union it,abovedescribed, and at the other end opens into the bottom of the oil-cock under the shoe H, to carry off the condensed steam. This drip-pipe is always left open a very little. \Vhen the lubricator is not in use,the handle F hangs in a vertical position,with the projection f 2 midway between the stops marked L and R. In this position the port c registers with the oilpassage b, and the oil-cylinder fills with oil, and is ready for oiling whenever desired. In this position the steam-ports c are closed by the shoe H. IVhen it is desired to oil one of the cylinders, the handle F is thrown to one side, into the position shown by the several figures, to oil the right-hand cylinder, or into the reverse position for the other cylinder. rThe projection f, striking the stop R, limits the throw of the handle, and in this position the port c is in communication with the port a3, and the ports c' have cleared the shoe Hand are open. The cam O has depressed the pinZ and opened the valve 7c', admitting the steam, which enters under the shoe H, passes up into the oil-cylinder,and drives the oil out through the pipeN. When the handle is brought back into a vertical position, the valve k closes, shutting off the steam, the ports c' close, the connection with the oil-cup is re-established, and the cylinder refills.

In the use of tallow in lubricators of this class a diiiculty is experienced with the lubricator-cups as ordinarily constructed, owing to the congealing ofthe tallow in the gageglass. To prevent this the gage glass b is partially embedded in the metal wall of the cup, whereby the tallow in the glass is kept at the same temperature as that in the cup.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-` 1. In a lubricator, an oil-cylinder, in combination with an nclosingcasing having a ixed bearing on one side of the curved surface of the said cylinder and a movable bearing sustained by an elastic pressure opposite to the said fixed bearing on the other side of the cylinder, substantially as and for the purpose set forth.

2. In a lubricator, an oil-cylinder having an oil-port and a steam-port, in combination with a casing having adjacent oil inlet and outlet IIO portsand a steam-port, said casing having a fixed bearing for the curved surface of the oilcylinder on the side of the oil inlet and voutlet ports and a movable bearing sustained by an elastic pressure opposite to the said fixed bearing on the other side of the cylinder, substantially as and for the purpose set forth.

3. In a lubricator, an oil-cylinder havingan oil-port and a steam-port in opposite sides of its curved surface, in combination with a casing having an oilinlet and two oil-outlet ports on opposite sides of the oil-inlet port and adjacent thereto, together with a movable springpressed shoe bearing on the curved surface of the cylinder opposite the oil-inlet, and thereby forming two oppositely -located steam -ports, substantially as and for the purposes set forth.

4. g In a lubricator, an oil-measuring cylinder provided with a earn or tappet and having an oil-port and a steam-port, in combination with a casing having a steam-pipe and a dischargepipe, and a valve in the steam-pipe opened by the movement of the said cam on the oil-cylinder, substantially as and for the purpose set forth.

'5. In a lubrcator, an oil-cylinder having oil and steam ports in its curved surface, in combination with a spring-pressed shoe forming a part of the bearing for the curved surface of the said cylinder, substantially as and for the purpose setV forth.

6. In a lnbricator, an oil-cylinder having oil and steam ports, in combination with a springpressed shoe forming the bearing for the cylinder on the side of the steam-port, and having the steam admitted frombeneath the shoe, substantially as and for the purpose set forth.

7 In a lubricator, an oil-cylinder having a cam, in combination with the steam-pipe having a valve controlled by the cam on the oilcylinder, substantially as and for the purpose set forth.

'8. In a lubricator, the oil-cylinder, in combination with the shoe, a spring beneath the shoe, and an adjustable screw-support for the shoe, substantially as and for the purpose set forth.

9. In alubrioator, the covering-plate having means for preventing it from turning and the stops L and R, in combination with the oilcylinder, the operating-spindle connected to the oil-cylinder by a tongue and groove and passing through the -said covering-plate, the coupling-ring, and the handle having a projection that engages with said stops, substautially as and for the purpose set forth.v

In testimony whereof I affix my signatnrein presence of two witnesses.

HIRAM ALI/EON.

Witnesses:

STORY B. LADD, C. T. BELT.

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