US235887A - mackay - Google Patents

Description

2 Sheets-Sheet 1. J. MACKAY. 1

Roller Skate. I No. 235,887. Patented Dec. 28,1880.

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Roller Skate,

No. 235,887.v Patented Dec. 28,1880.

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UNITED STATES- PATENT OFFICE.

JAMES MAOKAY, OF LIVERPOOL, COUNTY OF LANCASTER, ENGLAND.

ROLLER-SKATE.

SPECIFICATION forming part of Letters Patent No. 235,887, dated December 28, 1880.

Application filed June 14, 1879. Patented in England June 6, 1878.

To all whom it may concern Be it known that I, JAMES MAOKAY, of Liverpool, in the county of Lancaster, in that part of the United Kingdom of Great Britain and Ireland called England, have invented certain new and useful Improvements in Boller-Skates; and I do hereby declare the followin g is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to theletters ofreference marked 1thereon, which form a part of ithis' specifica- My invention is intended as an improvement upon the present method of attaching the rollers or runners to the foot-stock of a roller-skate, and on the method of controlling the action of said rollers or runners and lubricating the axles thereof.

In order to enable others skilled in the art to which my invention appertains to make and use the same, I will now proceed to describe the construction and operation, referring to the annexed drawings, in which like letters are used to denote the same or corresponding parts.

Figure 1 represents a side elevation of a roller-skate fitted with brackets and controlling mechanism and having the rollers mounted according to this invention. Fig. 2 is a back view of the heel-rollers, Fig. 1. Fig. 3 is a back view of the toe-rollers, Fig. 1. Fig. 4 is a plan of Fig. 2, viewed from the under side, shown partly in section. Fig. 5 is a plan of Fig. 3, viewed from the under side, shown partly in section. Fig. 6 is a perspective view of a roller according to my invention. Figs. 7, 8, and 9 are details of Fig. 6. Fig. 10 is a plan of the axle for carrying the rollers c011- structed according to my invention. Fig. 11 is an elevation illustrating a modification of my invention. Fig. 12 is a plan of Fig. 11, viewed from the under side and shown partly in section. Figs. 13, 14, 15,16, 17, 18, 19, 20, and 21 are details of Figs. 11 and 12.

A is the foot-stock of the skate; B, the rollers; 0, the fixed bracket; D, the moving bracket; E, the axle. F is the controlling mechanism, which regulates the movement of the foot-stock and the radiation of the rollers B.

It will be seen that the bracket 0 has an inclined face, 0, on which fits and works, by means of the pivot 01, the moving portion or second bracket, D.

The moving bracket D, in the arrangement shown at Figs. 1 to 10, is provided with horns e, which embrace the controlling mechanism F. (See Figs. 3, 4, and 5.)

The controlling mechanism F consists of the barrel f, which is cast on and forms part of the bracket 0. The barrel f contains a spiral spring, g, and the telescopic pins or nipples h, (see Fig. 4,) the ends of which, h, bear on the horns or arms 0, before referred to as forming part of the moving bracket D.

The moving bracket D is provided with an oil cup or receiver, '5, which may be placed as shown at Figs. 1 and 4 or as shown at Fig. 11, .the axle E being grooved, as shown at Fig. 10, for distributing the lubricant. Between the moving bracket D and the wheel B, I place a leather washer, j.

The method of fitting and retaining the rollers B on their axles E according to my invention will be seen upon reference to Figs. 4 to 10. The roller B is formed with a recess, k, and the axle E is formed with grooves Z and collars m. In the groove 1 there fits a retaining washer or disk, a, made in halves. (See Fig. 9.) This washer it keeps the washer-plate p in position on the axle E, the halves of the washer n being kept together by the ring r. The position of the parts will be understood upon reference to Figs. 4 and 8. The roller B is provided with a bush, S, into which the end of the axle E takes. The wheel B is retained, on the axle E by means of the screws t, which screw into the plate 10. (See Fig. 5.)

The modification shown in Figs. 11 to 21 consists in covering in the controlling mechanism F, which is fitted to the foot-stock A, as shown at Fig. 12. The horns e, as shown in Fig. 4, are dispensed with, and the bracket D is provided with a tongue, D, which radiates on and is controlled by the spring telescopic mechanism F, the detail of. which will be understood upon reference to Figs. 13, 14, 16, 17 and 18.

The axle E is illustrated at Fig. 15, and is a modification on that shown at Fig. 10, and is provided with grooves l and collars m. The plate 19 and the divided washer a lit on the outside of the roller, as shown at Fig. 12, and the roller is secured by screws t, the principle of attachment being similar to that shown at Fig. 4.

From the foregoing it will be seen that a roller-skate constructed with brackets, controlling mechanism, and having the rollers retained according to this invention has the advantage of being self-lubricating through the oil-cupsi and the grooved axles E, the surplus oil being wiped up by the leather Washer j. The bushes and roller-retaining parts are completely covered in and split pins are dispensed with; also, the controlling mechanism F is incased, and dust and foreign matter cannot enter and clog any of the working parts of the skate, which can be easily wiped and kept clean, free from dirt.

Having thus fully described my invention,

what I claim as new, and desire to secure by Letters Patent, is

1. The combination of the arm 1) and the inclosed spring-governor F with the axle E, the several parts to be constructed and arranged with reference to each other substantially as described, for the purpose specified.

2. As an improvement in roller-skates, the combination of the collar m, divided washer n, ring r, and plate 1) with the groove Z, roller B, and washerj, for the purpose of securing the roller to the axle E, substantially as described.

JAMES MAOKAY.

Witnesses:

FREDERICK J OHN OHEEsBRoUeH, JOHN HAMILTON REDMOND,

Both of 15 Water Street, Liverpool, England.

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