US308990A - Roller-skate - Google Patents

Roller-skate Download PDF


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US308990A US308990DA US308990A US 308990 A US308990 A US 308990A US 308990D A US308990D A US 308990DA US 308990 A US308990 A US 308990A
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    • B60B27/00Hubs
    • B60B27/0005Hubs with ball bearings


' (No-Model.)



No. 308,990. v Patented Dec. 9, 1884;

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ESPECIFICATTON forming part of Iletters Patent No. 308,990, dated December 9, 1884.

Application filed August 6, 1884. (No model.)

To all whom, it may concern.-

Be it known that I, Lnvan'r M. RICHARD- SON, a citizen of the United States of America, residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Roller-Skates, of which the following is a specification, reference being bad therein to the accompanying drawings.

My invention relates to improvements in roller-skates.

The object of the invention is to improve the bearings for the rollers with which such skates are provided; and to that end it consists in providing one or more series of balls situated within the rollers, between them and the axles, and held in place in any suitable manner.

Reference will be made to the accompany ing drawings, in which Figure 1 is a longitudinal sectional view of a skate, and Fig. 2 a cross-section through one roller thereof.

Like letters refer to likeparts in each view.

A represents the foot-rest or body of the skate; B B, the heel and toe straps, respectively; and C,the hangers, secured upon the lower face of the footrest A and supporting-axles D. Upon each axle 1) one or two rollers, E, are loosely mounted so as to revolve thereon, said opening preferably larger at each end than at the center, whereby the inwardly-projecting flange or ring a is formed. Into each roller a bushing, b, is inserted, the length thereof being slightly less than the width of the roller, in order that a small space may be left between the sides of the roller andv each end of the bushing. This bushing is of such a size that it will fit snugly within the roller, its outer surface contacting with the flange or ring a, before referred to. At or about the center of bushing b, and upon the interior thereof, there is formed a ring or flange, 0, provided with a central opening, through which the axle is adapted to pass and by which the bushing is centrally divided. In each chamber thus formed in the bushing I place a series of small balls, (I, made of any suitable material and of are provided each with a central opening to fit such plates upon the axle, and each is provided with a flange, f, which is screw-threaded, as

shown in Fig. 2, said flange adapted to engage with a thread formed upon each end of hash ing b, and being of such a size as to adapt it to fit snugly in the space formed by the central flange or ring, a, of the roller, whereby -when the plates are screwed to their position their outer faces will be flush with the sides of the roller.

By the arrangement of the parts as described and shown a perfect ball-bearing is provided for each roller, and one which will prove durable and which in appearance is neat.

hat I claim is l. The combination, in a roller skate and with the axles thereof, of rollers provided in their bores with a ring orflange, a'bushing situated within each roller, balls situated in the bushing, and plates for holding the balls in position, said plates adapted,when in position, to be flush with the rollers, as set forth.

2. In a skate, the combination, with rollers E and axles D, of centrally-divided bushings b, screw-threaded at each end, balls (I, situated therein, and plates 6, for holding such balls in position, said plates being provided each with a. screw-threaded flange, f, as and for the purpose set forth.

3. In a skate,the combination, with aXles D and rollers-E, provided with fllange or ring a, of centrally-divided bushings 5, balls cl, situatedtherein, and plates 6, for holding such balls in position, the parts so arranged that LEVANT M. RICHARDSON.


M. J. GLiienrr, A. F. SMITH.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9737789B2 (en) 2016-01-05 2017-08-22 Paul Brooks Dual wheel assemblies for skateboards and related methods

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9737789B2 (en) 2016-01-05 2017-08-22 Paul Brooks Dual wheel assemblies for skateboards and related methods

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