US321466A - Eqller skate - Google Patents

Description

(No Model.)

P. W. WALL.

ROLLER SKATE.

Patented July 7, 1885.

I Fig/9.

s" I l) l al f 3 4 iE F1914 Figgg www llniTnn dTnTrs aTnNT @errent FREDERIC V. VALL, OF CONNERSVILLE, INDIANA, ASSIGNGROF @NE-HALF TO JAMES NELSON HUSTON, OF SAME PLACE.

ROLLER-SKATE.

SPEWTTTCATEON forming part of Letters Patent 510.321,46, dated July 7, 1885.

Application tiled March l0, 1885.

To @ZZ whom, t may concern:

Be it known that I, FREDERIC W. NVALL, of the city ot' Connersville, county of Fayette and State of Indiana, have invented certain new and useful Improvements in Roller-Skates,

of which the following is a specification.

My said invention consists in an improved construction of the mechanism for mounting the rolls of roller-skates, whereby a skate is ro produced which gives a solid and hrm snpport to the user, and one capable of turning very short curves when desired, as will be hereinafter more full y described.

Referring to the accompanying drawings,

i5 which are made a part hereof, and on which similar letters ol" reference indicate similar parts, Figure l is a side elevation of a skate embodying my invention, one of the rolls being removed to show my improved mechanism; 2o Fig. 2, a longitudinal vertical section through the saine on the dotted line 2 2; Fig. 3, a debox and the set-screw di, which screws through tail horizontal sectional view looking upwardly from the dotted line 3 3, and Fig. 4 a

detail sectional view looking toward the left.

from the dotted line 4 at.

In said drawings the portions marked A represent the foonboard ofthe skate; B, hangers secured thereto; C, the axle; D, a springbox in which the rubber spring is mounted,

3o and E the pivot-pin which secures the parts together. The foot-board A is any ordinary or suitable foot-board, and needs no special descrip-tion. The hangers B are secured to the under side ot" the board by screws, or in any other suitable manner. Each has abearing-plate, B', formed on its lower end. The face ofsaid bearing-plate is inclined, as shown, so that the rolls may be easily and readily turned by the cant of the foot,in the usual 4c manner. A pivothole is formed in the center of said bearingplate at right angles with the face thereof, through which the pivot or pin which secures the parts together, and on which the axle-block swings, is inserted.

Centrally upon the axle C is the axle-block C', which extends out on one side thereof,and has a pivot hole formed therein, which, when in position, registers with the hole b in the plate B. The axle-blocl C extends in t0- 5o ward the middle portion of the skate, and has a face, C?, formed on the inner end thereof,

(No model.)

which is formed concave, and is adapted to t into the open end of the springbox D, and

bear against the rubber spring inelosed therein. The spring-box D is of a size to accommodate a suitable rubber spring, D', the side next the axle being open. The under side of the box is extended forward into a flange, (l,

and is provided with a hole, d', through which the pin E is inserted. An arm, d. on this 6o springbox extends up to the under side of the foot-board, to which it is secured. The box is thus not only securely held in position, but

an efficient brace is provided, which adds strength to the mechanism and holds it in place. The spring D', which is mounted in the box D, is preferably a piece of rubber ot' the required size; but ot` course may be any spring which is found to be suitable. Its tension is 7o lregulated by the plate d, which is interposed between said spring and the back side of the said back side and bears against said plate. The pivot-pin E extends up through the holes in the flange cl of the box D, the blocl; C on the axle G, and the bearing-plate B on the lower end of the. standard B, thus securing said several parts together. It also forms a pivot on which the axle-block swings when the skater is lnirning` the holes through the several parts being all formed at right angles with the face ofthe bearing-plate, permitting a free movement. Said pin is secured in place by a hey, e, inserted through a transverse hole in its top end, as shown, or in any other snit` able manner.

ln turning on the skate provided with this invention the axle-block, axle, and rolls swing ou the pivot E, and the concaveiaced axle-block 9o is forced around, one of the corners pressing in against the rubber spring and compressing it. When the curvehas been made, the strain being removed from the spring, it expands and again forces the block out and returns Vthe rolls to normal position. rlfhe face of the block being formed concave, the corners thereof bear against the spring at such an angle as tends to force said spring back into the corner ofrsaid box instead of pressing it out on the other 10o side. By-loosening or tightening the tensionscrew (1*, a very liexible mechanism, capable of turning very short curves, or a very rigid mechanism, can be secured.

In operation my invention affords a broad solid bearing-surface between the bearingplate of the roller-axle and that of the standard, and thus gives a firm and steady support to the skater at all times and in all positions of the skate.

Having thus fully described my said invention, what I claim as new, and desire to secure by Letters Patent, is

l. In a roller-skate, the combination of the hanger B, secured to the foot-,board of said skate and having a bearing-plate, B', formed on its lower end, the bearing-surface of which is inclined, the axle C, axle-block C' on said axle having a concave face, C2, formed on the inner end of said plate, box D, having the flange d and arm d', the spring D', inclosed in said box, and the pivot-pin E, inserted through holes in said sev eral parts, substantially as described, and for the purposes set forth.

2. In a roller-skate, the combination of the foot-board A, hangers B, secured thereto and provided with bearing-plates on its lower end, axle C, axle-blocks C', formed on said axle, having concave face C2, springbox D, and spring D', inclosed therein, substantially as set forth.

3. The combination, in arollerskate, of the hanger B, secured to the under side of the footboard, bearing-plate B', formed on the lower end ofsaid hanger and having an inclined face, axle O, axleblock C', rigidly secured on one side of said axle and provided with a bearing,

surface on its front end, and the box D, having a spring, D', therein, said several parts being secured together by a pivot-pin, E, which passes through them at a right angle to the line of motion, substantially as set forth.

4.. In a roller-skate, the combination, with the foot-board and hanger B, secured thereto, of the axle-block C', rigidly secured to the axle C at one end and having a concave face, C", on its other, the spring-box D, secured in front of said concave face, its open end being adapted to receive said block, and the spring D', inclosed in said box, one end of which bears against said concave face of the block O2, whereby said pivot-block and the rolls are kept in proper posit-ion, substantially as set forth.

5. The. combination of the foot-board, the hangers, the axle-blocks, the axle-rolls thereon, the spring-box, the spring D', interposed between said spring-box and said axle-block, a plate, d3, behind said spring in said springbox, and a set-screw, d4, passing through said box and bearing against said plate, substantially as described, and for the purposes specifled.

6. The combination of the foot-board, the hangers B, having inclined-faced plates B', the correspondingly-inclined faced axle-blocks, suitable springs, and pivot pins passing through said plates and said axle-blocks at right angles with the faces thereof, which are in contact, substantially as set forth.

In witness whereof l have hereunto set my hand and seal, at Indianapolis, Indiana, this 4th day of March, A. D. 1885.

FREDERIC WV. WALL. [L s] In presence of- E. W. BRADFORD, CHARLEs L. THURBER.

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