US726324A

US726324A - Hub-bearing.

Info

Publication number: US726324A
Application number: US9613302A
Authority: US
Inventors: Isbon Metzger; Oliver Metzgar; Samuel Metzgar
Original assignee: Individual
Current assignee: Individual
Priority date: 1902-02-28
Filing date: 1902-02-28
Publication date: 1903-04-28
Anticipated expiration: 1920-04-28

Description

PATENTED APR. 28, 1903. I. METZGEB., DEGD. o. s. s. METZGAR. ADMINISTRATORS. HUB BEARING.

APPLIUATION FILED FEB. 2a, 1902.

L E D 0 M 0 N No. 726,824. PATENTED APR. 2s, 1903.

- I. METZGER, DEGD. o. af. s. METZGAB, ADMINISTRATOM. HUB BEARING. APPLICATION FILED 111228 1902. No MODEL. 2 SHEETS-SHEET 2.

v, f Q* v r Ntra Sterns Amunt Outrun.

ISBON METZGER, OF WINFIELD, IOWA; OLVER METZGAItAND SAMUEL METZGAR ADMINISTRATORS OF SAlD ISBON METZGER, DEOEASED.

HUB-BEARING.

SPECIFICATION forming part Of Letters Patent N o. 726,324, dated April 28, 1903. Application iiled February 28,1902. Serial No. 96,133. (No modell) To ctZZ whom it may concern:

Beit known that LIBSON METZGER,a citizen of the United States, Aresiding atWinfield, in the county of Henry and State of Iowa, have invented a new and useful Hub-Bearing7 of which the following is a specification.

This invention relates to hub-bearings, and has for its object to provide an improved axle-box which is arranged to effectually distribute the lubricant throughout the entire portion of the axle-spindle, to maintain a circulation of the lubricant from end to end of the spindle, to strengthen the hub, and also to take up wear and end'thrust at the inner end of the box.

Another object is to provide an improved arrangement of hub-attaching nut and cap therefor so as to provide an oil-reservoir from which the oil is to be fed to the bearingsurface between the box and the spindle by the tilting of the axle.

lVith these and other objects in View the present invention consists in the combination and arrangement of parts, as Will be hereinafter more fully described, shown in the accompanying drawings, and particularly pointed out in the appended claims, it being understood that changes in the forni, proporf" tion, size, and minor details may be made within the scope of the claims without departing from the spirit or sacriiicing any of the advantages of the invention.

In the drawings, Figure lisa central longitudinal sectional view of a hub and axlespindle embodying the improvements of the present invention. Fig. 2 is a cross-sectional View on the line 2 2 of Fig. l. Fig. 3 is a cross-sectional view on the line 3 3 of Fig. 1. Fig. 4 is a detail perspective view of the axlebox. Fig. 5 is aview similar to Fig. 1, showing a modified form of axle-box. Fig. 6 is a detail perspective viewof the axlespindle shown in Fig. 5. Fig. 7 is a detail sectional perspective view of the cap which forms an oil-reservoir.

Like characters of reference designate corresponding parts in all the figures of the drawings.

Referring at first more particularly to Figs. 1 to 4, inclusive, of the accompanying drawings, 1 designates an ordinary wooden hub,

` into which are fitted the spokes 2, and designates opposite tubular metallic hub-sheaths, which are applied to the opposite ends of the hub and have Vinner marginal flanges 4 to bear against the spokes, which latter are connected to the flanges by means of suitable fastenings 5 piercing the spokes and the anges. The outer end portion 6 of the outer sheath member is projected a suitable distance beyond the outer end of the hub so as to form a cylindrical flange or hub-band to protect the axle-nut and the reservoir-cap, as will be hereinafter described, and the outer end of the bore of the hub is enlarged, as indicated at 7, for the loose reception of the reservoir-cap.

The axle 8 has the usual integral tapered spindle 9 and is provided at its outer end with a reduced externally-screw-threaded stern portion 10,-which terminates at its inner end in an outwardly-directed marginal shoulder 11, against which the hub-attaching nut 12 is designed to bear, so as to be limited in its inward movement. Alongit-udinal groove or gutter 13 is formed` in the top of the spindile and has its outer end terminated short of the shoulder 1l and inclined downwardly and outwardly. At the inner end of the spindle portion there is a cylindrical collar` 14, which is projected toward the outer end of the spindle and is separated therefrom by an annular space sufficient to receive the inner end of the axle-box. This collar has Ybeen shown integral with the spindle or axle;

but it will of course be understood that it may be shrunken, screwed, or driven thereon in order that it may be rigidly and durably connected to the spindle.

The axle-box 15 has the usual tapered bore to tit the spindle and is provided with the usual longitudinal wings 16 to enter grooves in the bore of the hub, and thereby interlock the box and hub for simultaneous rotation. Adjacent to the inner end of the box there is a marginal enlargement 17, within the interior of which is formed a marginal groove or chamber 18, designed to collect oil and carry the same to the top of the spindle in order that it may be deposited in the groove 13, and thereby distributed throughout the length of the spindle. At the outer end of the enlargement 17 there is another enlargement 19, thereby forming stepped shoulders 2O and 21 in addition to the shoulder formed by the inner end of the box. The enlargement 19 is of a diameter and length to have a working fit within the outer portion of the collar 14, so as to leave a space between the shoulder 20 and the outer end of the collar, in which space is fitted a washer 24, designed to take up wear and end thrust between the box and the collar. A washer 25 is interposed between the inner end of the box and the inner end of the cup or collar 14, and one or more other washers 23 are placed upon the inner end portion of the box, so as to fill up the space between the shoulder 21 and the washer 25, and thereby take up wear and end thrust between the shoulder 2l and the back of the collar or cup 14.

At a point between the enlargement 17 and the outer end of the box the latter is provided with an internal marginal groove or chamber 26, which is designed to take up oil from the bottom of the spindle and carry it upwardly and dropitinto the groove 13 in order that surplus oil may be again applied to the bearing, and thus obviate loss, of any of the oil. In assembling the parts thus described it will be understood that the box is first inserted into the hub, the

washers

23 and 24 having been previously applied to the box. The washer 25 is then fitted in the cup or collar 14, and finally the hub is slid upon the spindle until it is stopped by engagement of the washers with the outer end of the cup and the back thereof. After the hub has been placed upon the spindle the hub-retaining nut 12 is then fitted in place, and finally the hollow cylindrical cap 27 is fitted into the enlarged portion ofthe bore at the outer end of the hub and secured to the outer end of the box by means of internal screw-threads 2S, formed at the inner end of the cap, and external screw-threads 29, formed upon the outer end of the box. It will here be 0bserved that the external diameter of the box is uniform from the inner shoulder or end of the enlargement 17 to the outer end of the box instead of following the taper of the bore thereof, whereby the walls of the box increase in thickness outwardly, and the formation of the threads 29does not weaken the box. The

- outer end of the cap is provided with a reduced polygonal wrench-head 30 for conven-A ience in screwing the cap upon the axle-box, and the interior of the cap is larger than the axle-nut 12,'so as to form a reservoir for containing oil, which is adapted to feed into the longitudinal groove 13 in the spindle. It will here be noted that the cap 27 terminates short of the outer end of the hub-band 6 in order that it may be housed thereby and protected against accidental displacement. When the cap-nut 27 is fitted in place, the intermediate portion of the hub is gripped snugly between the inner end of the cap and the inner end of the enlargement 17, and by reason of the fact that said enlargement fits snugly the inner end of the hub the latter is braced and materially strengthened and looseness of the box within the hub is prevented.

, To establish an effective communication between the oil-reservoir formed by the capnut 27 and the groove 13, a groove 3l is formed longitudinally through vthe outer part of' the screw-threaded portion 29 of the box and an opening or perforation 32 is formed radially through the box and in communication with the inner end of the groove 31, whereby a passage is formed through the outer end of the box and communicates between the oil-reservoir 27 and the groove 13. It will be observed that the communication between the oil-reservoir and the groove is intermittent-that is to say, the communication is established only when the opening 32 is upon the top of the spindle and in alinement with the groove 13. Although the groove 3l has been shown in the box, it will ofcourse be understood that it maybe formed through the threaded portion of the cap 27; but the former arrangement is preferred, as in tho latter case it would be difficult to properly aline the groove 31 with the perforation 32.

An important feature resides in the fact that the longitudinalgroove 13 inc-lines downwardly and outwardly toward the outer end of the spindle, so that the oil, which is fed from the oil-cap 27 inwardly to the inner end of the spindle and is elevated by the chamber 18, will be returned to the outer end of the bearing by means of the groove, whereby a` continuous circulation of the oil is maintained from end to end of the bearing. It will be understood that the marginal space between the outer end of the spindle and the axle-box is sufficient to permit of the oil working inwardly between the spindle and the box.

In the form of the device illustrated in Figs. 5 and 6 communication is had between the interior ot' the cap 27 and the groove 13 by extending the latter outwardly through the outer end or shoulder 11, whereby the outer end of the groove 13 is open and always in communication with the oil-reservoir instead of .having an intermittent communication therewith, as is explained for the other form of the device.

Upon reference to Fig. 1 of the drawings it will be seen that the outer end of the cup or collar 14 is provided with an inner annular integral flange 14, the diameter of the opening bounded thereby being such as to give the fiange a working fit upon that portion of the box which it embraces. The essential object of this flange is to prevent outward displacement of the

washers

23 and 25 when the hub is withdrawn from the axle. Although the cup or collar 14 and the shouldered axle box have been shown and described in this case, no claim has been made for these features, and the right is retained IOO IIC

to present the same in a later application for patent.

l. The combination of a spindle having a longitudinal groove formed in the top thereof and increasing in depth outwardly, a hub, a box within the hub and having au inner annular oil-chamber embracing the inner end of the groove, hub-attaching means, and an oil-cup fitted to the outer end of the box and in communication with the outer end portion of the groove.

2. The combination of a spindle having a longitudinal groove formed in the top thereof and increasing in depth outwardly, a box titted upon the spindle and provided with an internal annular oil-chamber embracing the inner end of the groove, means to prevent endwise displacement of the box from the spindle, and an oil-cap fitted to the outer end of the box and in communication with the outer end of the groove.

3. The combination with a spindle, having a longitudinal groove formed in its top and inclined downwardly from its inner end portion toward the cuter end thereof, an axlebox tted upon the spindle and provided at its inner end with an internal annular chamber in constant communication with the inner end portion of the groove to take up oil and drop it back into the groove, a hub-attaching device carried by the outer end of the spindle, and an oil-reservoir carried by the outer end of the axle-box and in communication with the outer end of the groove, whereby a continuous circulation of oil is maintained from the outer end to the inner end of the spindle and back again to the outer end thereof.

1i. The combination with a spindle having a longitudinal groove formed therein, of a hub, an axle-box carried by the hub and having its inner end provided with an external enlargement embracing the inner end of the groove and forming an annular shoulder bearing against the hub, the enlargement being provided with an internal annular chamber in communication at all times with the inner end ofthe groove, a hub-attaching device appliedto the outer end of the spindle, and a cap-nut forming an oil-reservoir in communication with the outer end of the groove in the spindle and applied to the outer end of the box, the hub being clamped between the enlargement of the box and the cap-nut.

5. The combination with a spindle, of an open-ended box fitted thereon and provided with an oil-passage communicating with the bore of the box at a point inwardly from the outer end thereof and opening longitudinally outward through the outer end of the box, a hub-attaching device carried by the outer end of the spindle, and an oil-cap embracing the hub-attaching means and in communication d with the outer end of the oil-passage of the box.

6. The combination with a spindle, of an open-ended box fitted thereon and provided with a transverse oil-passage communicating with the bore of the box and located inwardly from the outer end thereof, an oil-cap carried by the box and embracing the outer end of the spindle, a longitudinal oil-passage communicating at one end with the transverse oil-passage of the box and at its other end with that portion of the interior of the oil-cap which lies outwardly beyond the box, and a hub-attaching device fitted to the outer end of the spindle and housed within the oil-cap.

7. The combination with a spindle, of an open-ended box fitted thereon, and provided with a longitudinal oil-passage opening out through the outer end thereof, and a transverse oil-passage intersecting the longitudinal passage and communicating with the bore of the box, hub-attaching means fitted to the outer end of the spindle, and an 0il-cap housing the hub-attaching means and in communication with the outer end of the longitudinal oil-passage.

8. The combination with a spindle, of an open-ended box fitted thereon and provided in its outer end with an external longitudinal groove opening outwardly through the outer end of the box, and a transverse passage leading from the groove to the interior of the box, a hub-attaching means carried by the outer end of the spindle, and an oil-cap housing the hub-attaching means and detachably fitted to the outer end of the box and closing the outer side of the groove, the outer end of the latter being in communication with the interior of the oil-cap.

9. The combination with a spindle, of a box fitted thereon, and provided in its outerend with an external longitudinal groove opening outwardly through the end of the box and a transverse passage leading from the groove to the interior of the box, and an oil-cap detachably fitted to the outer end of the box and closing the outer side of the groove, the outer end of the latterbeing in communication with the interior of the cap.

lO. The combination with a spindle,of a box fitted thereon and provided at its outer end with external screw-threads, a longitudinal groove intersecting the screw-threaded part of the box and opening outwardly through the outer end thereof, and a transverse passage leading from the groove to the interior of the box, and an oil-cap having a screw` threaded connection with the screw-threaded part of the box and closing the outer side of the groove therein, the outer end of the groove being in communication with the interior of the oil-cap.

ll. The combination with a spindle having a longitudinal groove, of a box fitted thereon and provided with an internal annular oilchamber embracing the inner end of the groove, the outer end of the box being provided with a transverse oil-passage communicating with the outer end portion of the groove, and also having a longitudinal oil- IIO passage communicating with the transverse v passage and opening outwardly through the the presence of two Witnesses.

outer end of the box and an oil-cap detaehably tted to the outer end of the box and in ISBON METZGER 5 communication with the outer end of the lon- Witnesses:

WM. I-I. CoL'roN,

gitudinal oil-passage.

J. D. DIEHL.

In testimony that l claim the foregoing as my own I have hereto affixed my signature in