US796602A

US796602A - Self-oiling journal-box.

Info

Publication number: US796602A
Application number: US23818104A
Authority: US
Inventors: Frank B Philbrick
Original assignee: Webber & Philbrick
Current assignee: Webber & Philbrick
Priority date: 1904-12-24
Filing date: 1904-12-24
Publication date: 1905-08-08
Anticipated expiration: 1922-08-08

Description

No. 796,602. l PATENTED AUG. 8, 1905. F. B. PHILBRIGK.

SELF OILING JURNL BOX.

APPLIQATION Hmm 11110.24, 1904.

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No. 796,602. PATENTED AUG. 8, 1905. F. B. PHILBRICK.

SELF OILING JOURNAL BOX.

APPLICATION FILED D130. 24, 1904.

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UNrTED sfrnrns FA'FENT OFFICE.

FRANK B. PHILBRIOK, OF WATERVILLE, MAINE, ASSIGNOR TO VEBBER 9; PHILBRICK, OF VVATERVILLE, MAINE, A FIRM.

SELF-OILING JOURNAL-BOX.

Specication of-Letters Patent.

Patented Aug. 8, 1905.

Application led December 24, 1904. Serial No 238,181.

To all whom it may concern:

Be it known that I, FRANK B. PHILBRIox, a

Acitizen of the United States of America. and

a resident of Waterville, Maine, have invented certain new and useful Improvements in Self-Oiling Journal-Boxes, oi' which the following is a specification.

My invention relates to a self-lubricating journal bearing particularly designed for heavy machinery and in the form herein shown having a special application to a thrustbearing.

It has always been a difficult problem in mechanics to keep heavy bearings suitably supplied with oil; and the object oi' my invention is to do this in the most eliective manner, so that all parts of the bearing will have an ample supply of oil at all times, one important object being to make use of very heavy oils and to provide for the proper distribution of the oil after it becomes thick and diiicult to distribute.

My invention in the form here shown comprises a journal-box having at one end an enlargement or extension constituting an oilchamber in which revolves a hollow ring provided with suitable openings by which the oil is taken up from the oil-chamber and discharged into ducts or channels which eX- tend longitudinally along the box adjacent to the journal, so that as the oil iows along through the channel it is in contact with the journal. A Well at the end of the box receives the oil and carries it by a return-duct back into the elevating-ring, by which it is again elevated and discharged into the channel.

I illustrate my invention in the accompanying drawings, in which-- Figure-1 is a vertical longitudinal section through the center. Fig. 2 is afcentral longitudinal horizontal section. Fig. 3 is a crosssection on the linea' fc or' Fig. l. Fig. 4: is a half-elevation on the end of the box and halt-section on the line a e of Fig. 2 with portion in section on line mot Fig. 2. Fig.

is a section on the line 2 2 of Fig. 2. Fig. 5 is a section on the line .fr x of Fig. 2. Fig. 6 is a section on the line ,e .e of Fig. 1, and Fig. 7 is a section on the line y y of Fig. 2. Fig. 8 is perspective of the oil-elevating' ring.

O represents the box proper. O' is the cap thereof, B representing the babbitt, and A the shaft, which is shown as terminating in the box to form a thrust-bearing. On one end ot' the box-namely, the end opposite the end of the journal, as here shownis formed an enlargement and extension forming an oilchamber e, which is substantially cylindrical and drops somewhat below the end of the box to form a reservoir for collecting the oil. An oil-cap D covers this end of the box, Jforming an upward extension of the oil-chamber surrounding the end of the cap O.

Oil is applied to the journal by means of channels or ducts j, Which are here shown as extending along through the box from one end to the other, one on each side of the journal and opening on one side to the journal, so that the oil as it Hows through these channels will come in contact with the journal. These channels j' are shown one on each side of the shaft and on the horizontal center thereof; but they may be otherwise disposed and one or more may be used. The lower surface of each of the channels j is pitched or inclined inward toward the journal, so that the oil will readily come to the surface of the journal. This inclination is maintained throughout the entire length of the box excepting at the two ends, where it is iiattened out, forming a horizontal surface. On the front end or the end receiving the oil there is an enlargement or bay f4, extending the entire width of the oil-chamber, and at the extreme end of this flat surface and at the end of the box is formed a small rib or dam ja Jfor preventing the oil from spilling back after it has been deposited on the surface ji. At the opposite or rear end of the box is another similar iat surface, (marked jm which extends around'the end of the journal for the purpose of conducting the oil around the end of the` bearing. To facilitate the flow around the end, a small angular rib. or dam j is raised slightly above the flat surface f2 and extending around the end, With its inner ends so located as to leave a space for the oil to flow against the end of the journal. Immediately below the end of the journal is a well or oilspace, through which the return oil passes,

and at the lower end of the oil-space the return-duct c extends through the lower portion of the box to the oil-chamber. y

Mechanism is provided for receiving the oil as it passes from the return-duct 0 and lifting it and discharging it upon the surfacej4 of the oilchannel j'. For this purpose I make use of an oil-elevating ring F, which is secured to the shaft by aspline or other equivalent connection and is pressed normally against the end of the box to form a joint which is approximately oil-tight. This ring F is made hollow, with its outer face solid and its inner face or that next to the end Vof the box open for the greater part of the distance around the ring,as hereinafter described. It is made in two parts dovetailed together, as shown in Fig. 6, to facilitate its being placed in position in the bearing. The open face of the ring registers with the discharge-opening of the duct c, so that the returning oil passes into the ring and is lifted and discharged intor the channel j. For the purpose of raising the oil and discharging it the hollow space f within the ring is cut olf by a cross partition or diaphragm f7, and it is at this point that the oil is thrown out or delivered. The inner surface of the ringis inclined inward from the outer solid portion to the open face, terminating in a channel or angle f2 at the outer diameter of the ring adjacent to the partition of diaphragm f7. (See Fig. 8.) The oil as it is thrown horizontally from the ring cornes from the point of discharge fg in a narrow stream and discharges directly into the end of the channel .7', which is broadened and flattened, as already stated. For the purpose of preventing the oil from iiowing back into the ring after'it has been discharged into the channel j' I cover a portion of the inner face of the ring with a plate f, extending, preferably, about one-eighth around the ring from the point of discharge f. While the ring is traversing this distance the oil cannot How back into the ring on account of the platef, and during that time it has an opportunity to spread out 0n the surface jf. As the discharging-point f9 approaches the duct c there is a tendency to accumulate the oil in the tapering space which adjoins the outlet, and thus causing a backpressure through the duct c. To avoid this back pressure, I provide the ring with a plate f5, which is flush with the inner surface of the ring and extends some distance back from the discharge-pointff, being so located as to cover the mouth of the duct c as the disk revolves.

Means are provided for taking out any oil which finds its way to the lower portion of the oil-chamber by leakage between the ring and the end of the box or otherwise. For this purpose I form an openingf3 in the outer edge of the ring immediately back of the partition f7, with a projection f4 extending out from one side of said opening, so as to catch the oil as the ring revolves. Any oil which enters at this point is caught in the discharging portion of the ring as the latter revolves and 1s carried up with the main supply of oil taken in at the open face of the ring. rIhe ring is pressed normally against the end of the box, and for this purpose I make use of a collar g, which, as here shown, rests against the shoulder b, formed on the shaft. Recesses g3 are formed in the back side of the ring f, and in these recesses are springs g', acting on plungers g2, which press against the collar g. The' thrust on the journal is taken up by means of a bearing-disk L, secured to the end of the journal by pins or other suitable means, so that it may be renewed with a bearing-block L', retained in a suitable recess in the end of the box and pressed into contact with the disk by means of a set-screw h2, having thereon a suitable check-nut. A section z' at the end of the box is made removable for the purpose of introducing the oil.

In the upper portion of the oil-chamber are ribs d for strengthening the oil-cup and for guiding the oil which is thrown up over the box-cap back into the channel j. Instead of the ribs here shown suitable corrugations may be used. Where the shaft passes out of the casing which forms the oil-chamber it is surrounded by an annular opening, the lower portion of which, b2, forms the overflow-point for the oil when the oil-chamber gets too full.

The operation of my box is as follows: The

'oil is put in through the removable section z' in sufiicient quantity, any excess running out at the opening at 52. When the shaft starts to revolve, the oil which has already filled the lower portion of the ring is immediately elevated and discharged into the wide end j* of the channel j' from the pointf, the plate fr preventing the oil from being forced back into the channel c and the plate f preventingit from spilling back into the ring after being emptied. rIhe rib f3 holds the oil after the plate f has gone by and prevents it from spilling back into the ring, giving it a chance to spread out. The oil then follows along the channel j to the end of the box, when it passes around the end as described and returns through the duct c, emptying into the ring and continuing thus to circulate over and over until it gets too thick to run, when a new supply is introduced. rIhe condition of the oil may be tested at any time by opening the removable section e'. Any oil which does not enter the end of the channel j' is carried along and thrown into the upper portion of the oil-chamber over the box-cap and runs down into the chambery'.

While I have shown my invention as applied to a thrust-bearing or a -journal terminating' in the box, it is evident that it may be applied to any form of journal, Whether terminating in the box or extending entirelyA through it, and various modifications may be made in the specific constructlon shown wlthout departing from the essential features of the invention.

I claiml. In a self-lubricating journal-bearing, the combination of a box having an upper and lower section, a shaft fitting closely in said box and resting in the lower section, a longitudinal channel, for conveying oil from one end of the box to the `other being formed in said box, the shaft forming one side of said channel, an oil-reservoir at one end of said box, an oil-elevator for raising the oil from said reservoir and discharging it into'one end of said channel and a return-duct for returni ving the oil into said elevator.

3. Ina self-lubricating journal-bearing, theV combination of a box having an upper and a lower section, a shaft fitting closely in said box and resting on the lower section, a longitudinal channel for conveying oil from one end of said boxto the other being formed in said box, the shaft forming one side of said channel, an oil-reservoir at one end of said box, an oil-elevator for raising the oil from said reservoir and discharging it into the end of said channel, an oil-well being formed at the other end of the box into which said channel discharges and a return-duct for returning oil from said well to said elevator. p

4.* In a self-lubricating journal-bearing, the combination of a journal-box an oil-chamber at one end thereof, a channel being formed Y' longitudinally of said box, one side of said channel being open to the journal, an openfaced hollow ring for discharging oil into the end of said channel secured to the shaft within the oil-chamber and adapted to move longitudinally thereon, said ring having a partition extending across it for forming a discharge-point, springs for forcing said ring against the end of said box and said box having a return-channel for returning the oil from the opposite end of said channel into the said hollow ring.

5. In a self-lubricating journal-bearing, the combination of a journal-box, an oil-chamber at one end thereof, a channel being formed longitudinally of said box, one `side of said channel being open to the journal, an openfaced hollow ring for discharging oil into the end of said channel secured to the shaft within the oil-chamber and adapted to move longitudinally thereon, said ring having a partition extending across it for forming a discharge-point, a collar on said shaft and spring connection between said collar and said ringv for forcing the latter against the end of the box and said box having a return-channel for returning the oil from the opposite end of said channel into the said hollow ring.

6. In a self-lubricating journal-bearing, the combination of a journal-box, an oil-chamber at one end thereof, a channel being formed longitudinally of said box, one side of said channel being open to the journal, an openfaced hollow rring secured to the shaft and iitting against the end of the box for discharging oil into the end of the channel, said ring having a partition extending across it for forming a discharging-point, there being an opening on the outer edge of said ring for taking up oil from the bottom of said oilchamber, and a lip extending outward adjacent to said opening and said box having a return-duct for returning the oil into said ring from the opposite end of the channel.

7. In aself-lubricating journal-bearing, the combination of a journal-box, an'oil-chamber at one end thereof, a channel being formed longitudinally of said box, one side of said channel being open to the journal, an openfaced hollow ring secured to said shaft and fitting against the end of the box for discharging oil into the end of the channel, said ring having a partition extending across it for forming a discharging-point, a plate covering the open face of said ring and extending from said discharging-point a portion of the way around said ring to hold the oil in said channel and said box having a returnduct for returning the oil into said ring from the opposite end of the channel.

8. In a self-lubricating journal-bearing, the

combination of a journal-box, an oil-chamber at one end thereof, a channel being formed longitudinally of said box, one side of said channel being open to the journal, an openfaced hollow ring secured to said journal and fitting against the end of the box for discharging oil into the end of the channel, said ring having a partition extending across it for forming a discharging-point, a plate covering the open face of the ring and extending a portion of the'way round the ring to hold the oil in said channel,l said box having a return-duct opening out of the end of said box for returning the oil from the opposite end of said channel to the open face of said ring and a plate on the face of said ring extending ahead of said discharge-point and adapted to close l the end of said return-duct for a short time before said discharge opening passes said duct.

9. In a self-lubricating thrust journal-bearing the combination of a journal-box, an oilchamber in the end of said box opposite the end of the journal, a channel being formed along the side of the box from one end tothe other and open on one side to the journal, a hollow ring iitting against the end of the box having'suitable openings for elevating the oil I pf said channel around the end of the journal and discharging it into said channel, a bearfor conducting the oil onto said bearing-disk ing-disk pinned to the end of the journal, a and into said Well.

bearing-block held against said disk, said box Signed at Waterville this 19th day of Dehaving a Well or oil-space beyond the end of cernber, 1904.

the journal in which said disk and block are i located and which is adapted to receive oil Y FRANK B' PHILBRIQK' from said channel, a return-channel connect- Witnesses:

ing with said Well and oil-space With the oil- GEORGE V. BROWN,

chamber and a duct extending from the end i MARK J. BARTLETT.