US329845A - mtj ndy - Google Patents

Description

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(ModeL) J. A. MU'NDY.

ROLLER SKATE.

Patented Nov. 3

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(ModeL) 2 Shgets-Sheet 2. J. A. MUNDY.

ROLLER SKATE. No. 329,845. Patented Nov. 3, 1885.

UNITED STATES PATENT OFFICEO JOHN A. MUNDY, OF SYRACUSE, NEW YORK.

ROLLER-SKATE.

SPECIFICATION forming part. of Letters Patent No. 329,845, dated November 3, 1885.

Application filed February 19, 1885. Serial No. 156,330. (ModcLl To all whom, it may concern:

Be it known that I, J onn A. MUNDY, a citizen of the United States, residing at Syracuse, county of Onondaga, and State of New York, have invented a new and useful Improvement in Roller-Skates, of which the following is a specification.

My invention relates to improvements in roller-skates in which any kind of bottom is used and the front roller is rigidly attached thereto, and the hind roller is provided with self-adjusting mechanism; and the objects of myinvention are, first, to provide a rigid front roller; second, to provide a hind roller with self-adj usting mechanism to facilitate the steering and relieve the ankle and foot from the strain experienced where the hind rollers are also rigidly attached to the skate-bottom; and, third, to reduce the friction occasioned by the use of rigidly attached rollers.

I attain these objects by mechanism illustrated in the accompanying drawings,in which Figure 1 is a plan view of the skate complete. Figs. 2 and 4 are plan views of the front roller, showing both the beveled and round edges. Fig. 3 is a plan view of the hind roller and mechanism. Fig. 5 is a top view of the same. Fig. 6 is also a plan view of a skate with the same hind roller as shown in Fig. 1, but with a front roller with adjustable mechanism in place of the rigid roller; and Fig. 7 is a front view of the roller and mechanism.

Similar letters refer to similar parts throughout the several views.

A represents the bottom of the skate, B the front roller, and O the hind roller.

The roller B has axle-supports a b, which are pendent from ayoke-plate which is firmly riveted or fastened to the skate-bottom, ren dering the roller rigid.

The roller 0 has axle-supports c d, which are pendent from the yoke-plate D. Into the center of the yoke-plate is countersunk a circular mortise, e, and fitted thereto and placed therein is the circular plate E, which revolves to right or left about the axle-screw f, which also holds it in place. Attached to the side of the circular plate E are the lugs l 2. At each side of the yoke-plate D are the guidegrooves g h, cut at an angle of about forty-five degrees to the face-surface of the plate. The

3, fitted to fill the space between lugs 1 2, all

of which are bored, and through them passes the pin t, connecting the two plates, and also forming an axle upon which the plate F rocks back and forth to either side. At either end of the plate F, and extending downward there from at an angle of about forty-five degrees, are the guidearms Z, which, as the plates are pinned together, enter the guide-grooves g h. At either side of the lug 3, and between the plates F D, are placed rubber supports m n, mortises being countersunk in both plates to receive the ends thereof to aid in adjusting the plates and retaining them at a parallel with each other.

In the place of the rigid roller B, I also use the adjustable roller B, which has axle-supports a b extending from yoke-plate D. The plate Dhas two lugs, 1 2, between which the lug 3 of the plate F is placed, and all of which are bored to receive the pin At the ends of the plates D F are placed rubber supports m n, countersunk into said plates in aid in adj usting the plates to a parallel with each other. By the mechanism thus described I secure the positive combined rotary and rocking motion, either to the right or left, according to the way I choose to steer the skate, and at the same time the flat surface of the roller rests evenly upon the floor, and in all positionsthe ankle and foot are relieved from the strain experienced when the rollers are rigidly attached; and also I am able to turn a circle nearly around in the length of the skate.

I use the rigid roller either with flat, beveled, or round surface, but prefer the beveled surface.

It is apparent that by means of the rollers provided with adjustable mechanism I greatly diminish the friction and enable the skater to skate more rapidly.

Having thus fully described my invention, what I claim is 1. In roller skates, the circular plate E, having lugs 1 2, and axle-screwf, in combination with yoke-plate D, having circular mortise e, guide-grooves g h, axle-supports c d, roller 0, and with plate F, having guidearms k Zand lug 3, pin 6, and the rubber sup- ICO ports m n, to give rotary motion in steering the skate, as and for the purposes specified.

2. In roller-skates, the yoke-plate D, having a circular mortise, e, guide-grooves g h, and axle-supports c d, in combination with roller 0, circular plate E, provided with lugs 1 2, plate F, having guide-arms 70 land lug 3, pin i, and rubber supports m n, to provide a rocking motion in steering the skate, as shown and specified.

3. In roller-skates, the combination of the circular plate E, yoke-plate D, and plate F, provided with the mechanism described, to simultaneously produce both the rotary and JOHN A. MUN DY.

In presence of HANER-WEsToN, M. F. SHERLOCK.

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