US746874A - Lubricating device. - Google Patents

Description

PATENTED DEC. 15, 1903-.

J. OLDENDORPH. LUBRIGATING DEVICE.

APPLIOATIOH FILED APR. 5. 1902.

N0 MODEL.

17/74 5255. 1 I win/raw Bi .5. I A \M W H rd? Q" v/70mm UNITED STATES Patented December 15, 1903.

PATENT OFFICE.

LUBRICATING DEVICE.

SPECIFICATION forming part of Letteisiatnt No. 746,874, dated December 1903- Applioatim; filed April 5, 1902. Serial No. 101,481. (No model.)

To all whom it may concern: Be it known that I, J OHN OLDENDORPH, a citizen of the United States, and a resident of Elizabeth, in the county of Union and State of New Jersey, have invented certain new and useful Improvements in Lubricating Devices, ofwhich the following is a specification.

My invention relates to improvements in lubricating devices for bearings such as are used in the construction of high-speed machinery; but I do not limit myself to such use of my invention, as it may also be applied to other usessuch, for example, as railroad: car journals.

My object is to provide a lubricating device which will constantly feed the oil diagonally across the wearing-face of bearings by the combined action of crossed double-spiral grooves and a fiber sheet having openings providing crossed double-spiral strips fitting within the crossed double-spiral grooves and having depending side flaps.- The oil-feed being throughout from side to side of the brass or bushing in converging and diverging paths, the grit will be carried through with the oil.

My invention consists in the novel features of construction hereinafter described and claimed.

In order that my invention may be fully understood, I will proceed to describe it with reference to the accompanying drawings, in which- Figure 1 is a transverse section of a bearing-box, taken on the line 1 1 of Fig. 2, showing my improved lubricating device applied to a shaft. Fig. 2 is in part a side elevation and in part a vertical longitudinal section thereof, taken on the line 2 2 of Fig. 1, parts being brokenaway to readily show the construction. Fig. 3 is a plan view of one of my fiber sheets formed with crossed double-spiral strips in the body thereof. Fig. 4 is a transverse section of a journal-box, showing my improved lubricating device applied to a journal. Fig. 5 is a detail side elevation of the meeting edges of the lower and upper brasses or bushings and the upper part of the web of the lower member of the bearing box, showing the meeting edges of the brasses or bushings, the. open ends of the crossed double-spiral grooves, and the upper edge of theweb over which the side flaps of the fiber sheets meet and from which they hang down.

Fig. 6 is a detail transverse section taken on the line 6 6 of Fig. 2, the fiber sheets being omitted, so as to show the meeting edges of the brasses or bushings, thelaterally-extending open ends of the spiral grooves, and the upper edges of the web over which the side flaps of the fiber sheets meet and from which they hang down.

Referring to Figs. 1 and 2, I show my lubricating device applied to a bearing-box, where A is the lower member of a bearing-box having a longitudinal semicircular oil-cham her B and a longitudinal semicircular web a, formed with vertical oil-ducts a in the base of the web a, leading to the oilchamber, B and leaving a space or opening a between the upper edges of the weband the top of the lower memher A. Fittingin the concavity of the low gitudinal web a is a'lower brass or bushing H, formedwith vertical oil-d ucts h, coinciding with the vertical oil-ducts a of the web 0.. The brass or bushing H is also formed with crossed double-spiral grooves G, open at the ends and sides of the brasses or bushings,

providing converging and diverging paths for the oil, the open ends 9 at the sides of the groove G extending laterally through the brasses or bushings and connecting with the spacings or openings 0. at the upper edges of the webs a. Located above the lower brass or bushing H is an upper brass or bushing H, formed with crossed double-spiral grooves G, open at the ends and sides of the brasses or bushings and providing converging and diverging paths for the oil, the open ends g at the sides of the grooves G extending later ally through the brasses or bushings and over the open ends g of the grooves G" of the lower brass or bushing H. The upper brass or bushing is also formed with vertical oil-ducts upper section D and secured by a series of bolts E to the lower section A of the bearingbox.

A I J Referring to Fig. 3, F is a fiber sheet formed in one piece, preferably of felt, having side flaps I and longitudinal extensions I. The body of this sheet has openings f, providing crossed double-spiral strips f. As shown in Figs. 1 and 2, I employ two of these fiber sheets F, in which the lower fiber sheet has its crossed double-spiral stripsf fitting in the crossed double-spiral oil-grooves G and open ends g of the lower brass or bushing H and its side flaps I extending through the spaces or openings a over the upper edges of the web a and downwardly into the oil-chamber B and projecting into the base of the latter, while the upper fiber sheet has its crossed double-spiral strips f fitting in the crossed double-spiral grooves G and open ends g of the upper brass or bushing H and its'side' flaps I also extending through the spaces or openings a over the side fiaps I ofthe lower sheet and downwardly into the oil-chamber B and projecting into the base of the latter. 0 is a shaft mounted in the bearing-box and whose surface is lubricated and cleaned by the oil conveyed thereto by the crossed double-spiral strips f.

Referring to Fig. 4, where I show my lubricating device applied to a journal-box, A is a bearing-box having an oil-chamber B in the base thereof. Projecting into this bearing-box is a journal 0. Mounted between the journal 0 and the top of the journal-box A is a bearing-block D, on which the journal-box is supported, having a brass or bushing H formed with crossed double-spiral grooves G and seating on the journal 0. F is a fiber sheet having crossed double-spiral strips f, fitting in the crossed double-spiral grooves G and side flaps 1 extending downwardly into the oil-chamber B.

An advantage of my improved lubricating device is that the oil forced through the grooves by the revolution of the shaft or journal is thereby evenly fed to the whole surface thereof in converging and diverging paths. The oil is carried by capillary attraction to the brasses or bushings, while any grit entering the bearing is carried downwardly by gravity and deposited in the oil-chamber. The fiber strips f within the grooves prevent the too rapid feed of oil and its waste.

Incar-axle journals the grit mostly takes place at the outer edge; but with my hearing it is not allowed to get between the metal surfaces at all, but is fed instantly into one channel or the other and led across without having a chance to get between the surfaces. The oil rushing through is ordinarily largely wasted. With a grooved surface broken up the oil is fed back and forth, thoroughly lubricating the surface. This could not be accomplished if the edges were closed, as there would not be any conveying action. In a car-axle journal grit is carried up from the waste which presses under the journals. The edge of the brass or bushing where Babbitt metal is used will flake where there is a dry place.

My lubricating device is particularly valuable on vertical boxes on account of retaining the oil, which ordinarily when a free fiow of oil is provided have to be provided with waste or wick below to hold in the oil and which at the same time prevents escape of grit.

It is important to make the fiber sheet all in one piece, for the reason that if the fiber be merely laid into the grooves in separate strands or strings it will inevitably be forced out and lose its function, or it will ball up in the grooves or in theangles of the grooves and interrupt the proper feeding operation of the oil and the even distribution of pressure over the face of the bearings.

Having thus described my invention, the followingis what I claim as new therein and desire tov secure by Letters Patent:

1. A lubricating device comprising a brass or bushing formed with crossed double-spiral grooves having open ends in the sides of the brass or bushing, and a fiber sheet formed with openings providing crossed double-spiral strips fitting in the grooves and in the open ends thereof.

2. A lubricating device comprising a brass or bushing formed with grooves having open ends in the sides of the brass or bushing and a fiber sheet formed in one piece with openings providing strips fitting in the grooves and in the open ends thereof.

3. A lubricating device comprising a brass or bushing formed with grooves having open ends in the sides of the brass or bushing and a fiber sheet formed with openings providing strips fitting in the grooves and in the open ends thereof and with depending side flaps.

4:. A lubricating device comprising a bearing-box having an oil-chamber, a brass or bushing formed with crossed double-spiral grooves having open end-s in the sides of the brass or bushing and a fiber sheet formed with openings providing crossed double-spiral strips fitting in the grooves and in the open ends thereof.

5. A lubricating device comprising a bearing-box having an oil-chamber, a brass or bushing formed with crossed double-spiral grooves having open ends in the sides of the brass or bushing and a fiber sheet formed with openings providing strips fitting in the grooves'and in the open ends thereof and with side flaps extending downwardly into the oilchamber.

6. A lubricating device comprising lower and upper brasses or bushings each formed with crossed double-spiral grooves having open ends in the sides of the brasses or bushings and the fiber sheets each formed with openings providing crossed double spiral strips fitting in the grooves and in the open ends thereof.

7. A lubricating device comprising a bearing-box having a lower member formed with an oil-chamber, a web, a lower brass or bushing having crossed double-spiral grooves open at their ends and providing converging and diverging paths, an upper member, an upper brass or bushing having crossed double-spiral grooves open at their ends and providing converging and diverging paths, and lower and upper fiber sheets having crossed doublespiral strips fitting in the crossed doublespiral grooves and side flaps extending downwardly into the oil-chamber.

8. A lubricating device comprising a bear ing-box having a lower member formed with an oil-chamber, a web, and spaces or openings between the upper edges of the web and the top of the lower member, a lower brass or bushing having crossed double-spiral grooves open at theirends and providing converging and diverging paths, an upper member, an upper brass or bushing having crossed double-spiral grooves open at their ends and providing converging and diverging paths, and lower and upper fiber sheets having crossed double-spiral strips fitting in the crossed dou- 2 5 hie-spiral grooves and sideflaps extending through the spaces or openings and down= wardly into the oil-chamber.

9. A lubricating device comprising a bearing-box having a lower member formed with 30 an oil-chamber, a web having vertical ducts, a lower brass or bushing having crossed double-spiral grooves open at their ends and vertical ducts, an upper member having vertical ducts, an upper brass or bushing having 35 crossed double-spiral grooves open at their ends, and vertical ducts, and lower and upper fiber sheets having crossed double-spiral strips fitting in the crossed double-spiral grooves and side flaps extending downwardly 40

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