US1479530A - Lubricator - Google Patents

Description

am 1, 1924 H, F. BlcKEL ET vAl- LUBRICATOR Filed may 8. 1922 Patented Jan., 1, 1924.

UNITED srnras PATIENT OFFICE.

HENRY F. BICKEL, OF PLAINFIELD, NEW JERSEY, AND BLYTHE J. lVIIN'NIIER,I 0F

WATER/TOWN, NE'W YORK, ASSIGNORS TO THE-NEW YORK .AIR BRAKE COMPANY, Al

CORPORATION OF NEW YORK.

LUBnIcA'roR. I

Application mea may '8, 1922. serial No. 559,392.

To all 'whom it may concern: p

Be it known that we, HENRY F. BICKEL and BLYTHE J. MINNIER, citizens of the United States, residing, respectively, at

of New Jersey, and at Watertown, in the county of Jefferson and State of New York, have invented certain new and useful Improvements in Lubricators, of which the following is a specification.

This invention relates tol lubricatorsfan'd particularly to lubricators used with steam engine cylinders and air pump cylinders.

The importantfeature of novelty is the use of ajacket surrounding the oil chamber or reservoir and connected with the working space of the lubricated steam engine cylinder or air pump in suchl manner as to re- .ceive hea-t therefrom. i

A'secondary feature of novelty is the connection of la plurality of j acketed lubricators so that the various jackets receive heat from the same working space, while the individual lubricators operate to feed oil to different cylinders or working spaces. lThis last arrangement is peculiarly desirable with compound or multi-stage air pumps, as it permits the heated air lto be taken from the highest stage, thus securing the highest temperature. I l

The invention has particular utility in connection with the air pumps used in railway air brake service, because such pumps are placed in exposed positions and are subject to thel eifects of varying atmospheric temperatures.

yThe invention is shown and' described as applied to a two-stage air pump of the type now in commonuse in railway air brake systems.

In the drawings Fig. 1 is an elevation of a portion of the Yair pump and connected steam cylinders with two lubricators connected tofeed oil to the respective air cylinders, and to be heated byair from the second stage or high pressure cylinder.

Fig. 2 is a plan view of the lubricator bracket with the lubricator for the second for the first stage cylinder removed.

. Fig.y 3 is a section on the line 3 3 of Fig.

Fig. 4 isa fragmentary section on the line 4 4 of Fig. 2. ,Y

The high pressure steam cylinder is shown at 1, the 'low pressure steam` cylinder at 2,

the low pressure air cylinder at 3, and the high pressure air cylinder at 4.' The cylinders are connected by the usual framestructure "5. lhehighpressure steaml piston (not shown) 1s connected to the low presure air piston (not shown) by the piston rodv 6. The low pressure steam piston is connected Vto the high pressure air piston by the piston rod 7. This is a familiar construction and obviously is subject to variation. j In Fig. 1, the lubricator for the low pressure air cylinder is indicated generally by thenumeral 8, and the lubricator for the vhigh pressure air cylinder is indicated generally by the numeral 9. These two lubricators are supported on aA ported bracket 10` which is bolted to the high pressure cylinderhead. l y

Apipe 11 provides a free communication from the working space of the low pressure f2; A portion of the bracket is broken away. Plainfield, in the county of Union and `State air cylinder to a port 13` in the bracket 10. i i

Similarly a pipe `12 provides an open coinmunication from the working space of the low pressure air cylinder to a similar port 14 in the bracket 10. Leading from the port 14.- isa passage 15 extending transversely of the bracket 10 and communicating with a similar port 16 extending longitudinallyof the bracket 10. This port 16 servespas a manifold connection for conducting. the

heating air to the lubricators mounted on the bracket. It is consequently provided with two small air ports y1'? and 18vwhich extend upward and terminate in the seats 19 and 20.

The seat 19 receives the low pressure cylinder lubricator, and the seat 20 receives the high pressure cylinder lubricator. I The ports 13 and 14C, previously mentioned, also terminate in the face of the seats 19 and 20. The lubricator may be of any suitable type.

F or purposes of illustratiomwe have chosen that shown in our copending application, Serial No. 510,801, iiled October 27, 1921, which has issued as Patent 1,446,412, Feb. 20, 1923.

The high pressure and the low pressure lubricators are identical except possibly for slight differences in port dimensions. Each lubricator consists of an oil reservoir 21 which is surrounded by a jacket 22. This jacket is. formed witha small port 23'. In.

the case of the high pressure lubricator shown in Fig. 3, this port communicates with the port 17 in the bracket 10. ln-the the portlain the bracket 10, and which communicates at its .upper end with the interior of the reservoir 21 by means of a lateriall air port 27. VThe exact position of the y port27 is not material, except that it is above the highest oil level in the reservoir Parallelwith the;port 26is an oil port 28 which communicates with the interior of the reservoir by a relatively minute port 29 located near but slightly abovethe bottom of the reservoir 21. The port 28 communicates with the port26 by a relatively minute port 30 which isopposed to the air port 27.

The operation of the oil cup may bedescribed with reference to the high pressure lubricatorshown in Fig. v3. As the piston reciprocates in the air pump, there are wide and sudden iiuctuations in pressure which are communicated by the port 26 to the oil reservoir. These pressure Huctuations lead to; the injection` ofminute, quantities of :oil through the port 30 into the air port 26. The oil meets the air entering through thel portsI 27 j and is :atomized and carried yto the air cylinder through the pipe 12... These same surges of pressure in the pipe 12 leadlto the flow of compressed air to the jackets 22, and, as this air is. heated by `thel compression ofthe pump, it leads to the maintenance of Vsuitable elevated temperatures ofthe oil in the reservoirs 21. It will be noted that the jackets 220i both lubricators areconnected. to thehigh pressureair cylinder through `the pipe `12. The pipe 12thus servespnotV only` to heat both lubricators,..but to. conduct thek oil fromy the high pressure lubricatorvto the-high pressure cylinder, Pipa 11 merely` serves to conduct oil from the low pressure lubricator to the low pressure cylinder.

The invention is particularly applicable to any lubricator of the class in which surges of pressure fluid back and forth between the` working space of the cylinderand the reservoir 0i` thelubricator serve to transfer the oil from the reservoir to the cylinder, as there is inherently present in this type of lubricator the necessary air connection from which the .supplyr of'jacketrair may be derived. The invention is, however, applicable to other types of lubricator, and we do not mean even by implication to limit our'y claims to ,the use of this particular type oflubricator, or to the particular example thereof shown in thedrawings. The lubricator structurek described herein is claimed in `our copending application; above identified,` and consequentlyl is vnot claimed inthe present application.

While the .various lubricators are lprovided with individual jackets-i, it is obvious that the. variousjackets areconnected together by the manifold-16, andl hencei'orm in effect a single jacketstructure. Indeed, except for manufacturingv considerations, there is .no -reason why each lubricator reservoir should be formed withan individual jacket. In certain. of the claims, we use'the term jacket structure?? for the purpose of avoiding l. any such limiting, implication.

What isfclaimed is Y j 1. The combination of a plurality of cylinders having corresponding working spaces-in'which fluctuations of fluid pressure occur through diierent;pressureranges; a plurality of lubricators"havingv oil reservoirs connected tofeed oil to respective cylinders; a jacket structure surrounding. said' reservoirs; and a connection between thel inf teriorsof said-jacket structure and the working. space of a cylinderhavinga=highpresure range.-

2. The., combinationv of a plurality., of cylinders having corresponding workin spaceszin each of which `fluctuations offui pressure occur; aplurality` of lubricators one4 forl eachcylinder, each lubricator having an. oil reservoir, an.. oil-feedingport, a jacket surroundingI said reservoir and` a port leading to the jacket; albracket` for supporting and connecting said VVlubricators havingoil-feeding ports connecting with the ,oil-feeding ports of thevariousJ lubricators and a manifold port leading from one oil-feeding port in the bracketandconnecting withl the jacket ports -ot alltheflubri cators; and connections from a. working space1 of each cylindery to` a-.- corresponding oil-feeding port of the bracluet.-l`

3. The combination, of apluarli-ty `of cylinders having corresponding working, spaces in Veach of which liuctuat'ionsotuid pressurey occur a pluralityr of flubricators, ...one

for each cylinder, each iubricator having an oil reservoir, a jacket surrounding said res:- ervoir, a mounting seat and separate ports extending from said seat to Said reservoir and to said jacketrespectively; a bracket having seats for supporting and connecting respective lubricators and Jformed With oil ports each registering With the reservoir port of a corresponding lubricator, and a l0 manifold port registering with the jacket ports of the various lubricators; and connections from respective Working spaces to the corresponding oil ports in the bracket and from one Working space to the manifold port in the bracket.

In testimony whereof We have signed our names to this specification.

HENRY F. BICKEL. BLYTHE J. MINNER.

Images