US271785A - Roller-skate - Google Patents

Description

(No Model.)

G.- D. BURTON.

ROLLER SKATE. No. 271,785.

Patented Feb. 6, 1883..

WITNESSES.

' UNITED STATES PATENT Qrrrca.

ROLLER-SKATE.

SPECIFICATION forming part of Letters Patent No.

271,785, dated February 6, 1883.

Application filed November 17, 1882. (No model.)

To all whom it may concern Be it known that I, GEORGE D. BURTON, of.

description, in connection-with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

skate when in use.

This invention relating to roller-skates is embodied in a skate having but two rollers-- one at the forward and the other at the rear portion of the skatethe said rollers being in line with one another and having their axis of rotation fixed relative to the body of the skate. The axles of the rollers have bearings in bearing-boxts fitted to slide vertically in bearingpedestals connected with the body or sole portion of the skate, suitable springs being interposed between the said bearings and the body of the skate to absorb the jar and prevent it from being transmitted to the skater. The axles of the rollers bear upon a series of balls held in an annular chamber within the bearingboxes, the said boxes having recesses at the ends of the roller-axle, in which additional balls are placed to receive the end-pressore on the axles when the skate is inclined from the vertical position. he rollers have aoentral or hub portion preferably made of wood, and surrounded by a band of soft rubher, which is itself inclosed in the tire of the roller, which is preferably of iron or steel, and rounded, so as to permit-the inclination of the The rubber band between the central portion of the roller and its tire is normally under a considerable compression, and affords an elastic cushion to partially absorb the jar incurred when the skate passes over a rough or uneven surface.

Figure l is a side elevation of a roller-skate embodying this invention; Fig.2, a transverse section thereof on line m :r, on a larger scale;

Fig. 3, a central longitudinal section of the roller on line 3 3 Fig.2; Fig. 4, a transverse section thereof, and Fig. 5 a transverse section of a modified form of roller in which the central portion of the roller. is recessed to receive a corresponding projecting portion of the rubber band.

The body a of the skate, of any suitable or usual construction adapted to be attached to the foot in any usual manner, is provided with beal'ingpedestals I), having a passage or slot, 2, which receives and forms a guide for the bearing-boxes c of the axles d of the rollers 6, two only of which are employed on each skate. Springs or cushionsfare placed in the guides of the pedestals b above the bearing-boxes 0. they serving to prevent the transmission of shocksupon the rollers c to the wearer of the skate. The axles cl of the rollers are surrounded by and bear upon a series of balls, 71., man annular recess, i, in the boxes 0, the said balls being kept in place by caps 70, attached to the said boxes 0. The ends of the shaft d rest in contact with balls an, placed in suitable chambers, a, in the boxes 0, the said balls constitut-ing pivots for receiving the end-pressure brought upon the axle (I when the skate is in an inclined position. I r

The rollers c consist of a central portion, 0,

fixed upon the axle d, preferably made of wood, it being surrounded by a band,1a,of soft rubber, upon which is placed the tire or rim 4, preferably made of iron, and rounded, 'as shown, so as to bear equally well when the skate is in an inclined or vertical posi tion. The band ofrubber 0 will be under great compression, so that the adhesion and friction between its-surface and that of the partsp r of the roller will be sufficient to secure the said parts together; but, if desired, the said band may have an annular projectiomp, as shown at Fig. 5, entering a corresponding recess in the portion 0 of the roller, and a similar projection might be made to enter a similar recess in the tire r, as shown in dotted lines,

Fig. 5. I do not herein claim the means employed for connecting the rollers with the body of the ers. in line with one anotheratthe forward and balls in the said chambers to afford an antias described.

band of rubber surrounding it, and arounded tire inclosing the said rubber band, substantially as described.

In testimony whereofI have signed my name 15 to this specificationin the presence of two subscribing witnesses.

rear end of the skate, and the hearing-boxes for the axles of the saidroller having an annular chamber surrounding the said axle, and achamber at the end of the said axle, and the friction bearing for the said ax1e, substantially 3. In a roller-skate, the combination of the O skate-body,'its bearing-pedestals, and bearingboxes therein, with the two rollers in line with one another, composed of a central portion, a

Witnesses:

Jos. P. LIVERMoRE, BERNICE J. NoYEs.

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