US449893A - Anti-friction journal-bearing - Google Patents

Description

(No Model.) 2 sheets-sheet 1.

M. A.' ANDREWS. ANTI-EMOTION JOURNAL BEARING.

No. 449,893. Patented'Apr. 7, 1891.

(No Model.)

' 2 sheets-sheet' 2. Y M. A..ANDRBWS. ANTI-EMOTION JOURNAL BEARING.

No. 449,893. Patented Apr. 7,1891] 2da/LM Suben/coz www UNITED STATES- PATENT Ormea.

MARION A. ANDREWS, OF SYRACUSE, YORK, ASSVIGNOR OF ONE-HALF` TO JAMES M. ANDREWS, OF SAME PLACE.

ANTI-FRICTION JOURNAL-BEARING.

SPECIFICATION forming part of Letters Patent No. 449,893, dated April *7, 1891.

Application filed May 9, 1890. Serial No. 351,155. (No model.)

f To au whom, it may concern:

Be it known that I, MARION A. ANDREWS, of Syracuse, in the county of Onondaga, in the State of New York, have invented new v and useful Improvements in Journal-Bearings, of which the following, taken in connection with the accompanying drawings,'is a full, clear, and exact description.

My invention relates to the construction of ro anti-frictionjournal-bearings foraxles,shafts,

or arbors, and which are designed to reduce the friction.

My object is to produce an improved journalbearing of the anti-friction species, in I5 which the axle is grooved near its outer end,

creating a head and an inner shoulder between which a ring fits loosely over the axle and lies in the groove therein, in which antifriction rollers support and steady the ring, zo traveling in a groove around the periphery of the ring, and also travelingin a groove around the inner wall of the outer casing, said rollers being mounted upon separate arbors mounted or secured in annular rings and being held apart from each other by their arbors.

My invention consists in the several novel features. of construction hereinafter described, and specifically set forth in the claims annexed.

rlfhe bearing is constructed as follows, reference being had to the accompanying drawings, in which- Figure l is a front elevation with the cap or cover of the casing removed. Fig. 2 is a vertical section taken on radial lines X X in Fig. l from the center outward both Ways through the center of two of the friction-rollers. Fig. 3 is a sectional elevation on a radial line on an enlarged scale from Fig. 4o 2. Fig. 4 is a like View, on a like scale, showing the corners of the trackway in the casing, the corners of the rollers, those of the outer trackway on the loose ring, those of the inner trackway of the ring, and those of the groove in the axle, all rounded 0E instead of scarfed or beveled, as in Figs. 2 and 3. Fig. 5 shows the axle grooved to receive the whole width of the loose ring, the loose ring having a plain inner wall and a grooved trackway in 5o its outer wall, the inner corners of which are.

rounded and the outer ones left sharp. Fig.- 6 is a view showing the axle grooved as in Fig. 5, and showing also theloose ring grooved in its inner wall producing vtwo side trackways bearing on the axle in the groove. Fig. 7 is a view showing the inner wall of the ring grooved as in Figj and the axle provided with two grooves to receive double trackway in the ring.

A is the casing, shown as constructed in 6o sections, each having an inner semi-circular Wall lbetween the back 3 and the cover or cap 3', and 2 is a groove out inl this wall, so that when the casing-sections are placed together the grooves coincide and form an inclosed grooved trackway.

Bis a ring of proper length to iit loosely between'thc back and the cap of the casing, having a plain inner wall 4, Fig. 5, and an endless groove or grooved trackway 5 around 7n its periphery, and the inner diameter of this ring is greater than that of the axle passing through it, so that the ring is loose upon it. The inner wall of this ring may also be grooved or cut away centrally, as at g, so as 7 5' to create a trackway 7 on each edge of its inner wall. The walls of this grooved track- Way in the outer face of the ring may be slanted or beveled, or the outer corners of its walls may be rounded, as in Fig. 4, or the in- 8o ner corners may be rounded, as in Fig. 5. The trackway in the inner wall of the casing should always be like unto that in the loose ring. Between this ring and the casing I mount rollers or wheels a. each upon its separate arbor S, which arbors are mounted in separate bearings in the annular rings 9, and the peripheries of these rollers fit in the grooved trackway in the casing and in loose ring and bear frictionally against both, and 9o are held apart from contact with each other by their arbors, and together support and steady the ring, and arey frictionally rotated by the rotation of' the ring and travel in the trackways in the ring and casing. The peripheries of these rollers should always fit their trackways, whether the traclways are beveled or scarfed off or have their corners rounded.

In Fig. 4 I show the outer corners of the 10o groove in the axle C rounded off, and the inlner corners of the trackway on the inner Wall give greater bearing for the rollers, and thus steady and support them better and give further protection against end-thrust, and, further, the beveled or rounded corners of the trackways operate as guides for the rollers and hold them in line against the end-thrust, besides increasing their frictional bearingsurfaces to prevent slipping. The same is also true to a large extent as to the ring -fitting the groove in the axle.V`

Vhat I claim as my invention, and desire to secure by Letters Patent, is-

l. A sectional journal-casing having an endless grooved trackway in its inner Wall scarfed on its edges, a central ring having an endless grooved traekway in its periphery scarfed on its edges, and rollers fitting into both of said grooved trackways and mounted between annular rings upon and held apart by separatel arbol-s supported by the annular rings and traveling in the trackways aforesaid, in combination with an axle grooved to receive the inner Wall of the ring and tting loosely through said ring.

2. A sectional journal-casing having an endless grooved trackway in its inner Wall soarfed on its edges, a central ring having an endless grooved trackwayin its periphery searted on its edges, and rollers tting into both of said grooved trackways and mounted between annular rings upon and held apart by separate arbors supported by the annular rings and traveling in the trackways, said ring further provided with an endless inwardly-projeetu ing traekway upon its inner wall fitting into a groove in the axle, in combination with an axle grooved to receive the trackway upon the inner Wall of the ring and fitting loosely through said ring. l

In witness Whereofl have hereunto set my hand this 3d day of May, 1890.

MARION A. ANDREW/TS.l

In presence ot` HOWARD P. DENIsoN, F. T. DENIsoN.

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