US311841A

US311841A - John lovett

Info

Publication number: US311841A
Authority: US
Publication date: 1885-02-03
Anticipated expiration: 1902-02-03

Description

(No Model.)

- J. LOVETT.

ROLLER SKATE;

N0.'311.841. Patented Feb. 3, 18851 arent tries.

.. JOHN LOVETT, OF INDIANAPOLIS, INDIANA, ASSIGNOR TO RUBEN B. POWERS,

EDGAR P. DENISON, JOHN B. DONGAN, AND AARON'H. MOORE.

ROLLER-SKATE.

SFECIFIGATION forming part of Letters Patent No. 311,841, dated February 3, 1885. Application filed May 2, 1884. (No model.)

To aZZ whom it may concern:

Be it known that 1, JOHN LOVETT, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of In- 5 diana, have invented certain new and useful Improvements in Roller-Skates, ofwhich the 1 following is a specification.

My invention relates to that class of rollerskates in which the roller-frames are cramped by the tilting movement of the foot-plate; and myinvention consists in constructing the roller-frames and their supports, as fully described hereinafter, so as to secure a positive bearing upon each erampingframe without interfering with the free movements of the latter, and without undue friction resulting from said movements.

The invention further consists in certain improvements in the details of this case.

111 the drawings, Figure 1 is a side elevation, in part section, of a rollerska-te embodying my improvements. Fig. 2 is aperspeetive view of the roller-frame. Fig. 3 is a perspective view of the bearing-bracket of the rollerframe. Fig. 4 is a section of the roller-frame at the point where the roller-shaft is connected, and Fig. 5 is a. section on the line 1 2, Fig. 1.

The skate is provided with the usual foot piece, A, to the underside of which, near each end, is bolted a bearingbracket, B, consisting of a substantially L-shaped plate having at the outer end a rounded socket, s, and a terminal hood or guard, a,with an open mouth adjacent to the socket a". The inner downwardly-projecting portion of the bracket terminates in teeth I), which mesh with corresponding teeth, at the rear of the rollerframe D, and on a plane below the top of the frame. The roller-frame has an upwardlyprojecting arm, cl, terminating in a rounded head or knob, c, in aplane above the top of the frame, adapted to the socket x, and a finger, f, projects from the neck forward into thehood a. The body 9 of the frame Dis of a box -like form, illustrated in the drawings open at the bottom and with a slot or opening, y, at the top, the under portion of the said top being convexed, as shown in Fig. 5, so as 50 to afford a convex seat for a block of rubber I or other elastic material, F,.which is clamped 1 against said seat by ascrew, G, passing through the block, through the slot y, and into the bracket B. Arms h extend laterally from the body 9 and forward,-with their ends in line with the transverse portion or plug it, through 5 which and through the ends of the arms ex-- tend the axle or axles m, upon which turn f wheels I. Thus constructed, each bracket B I has its bearings upon the wheel-frame D at two points which are upon a diagonal line, 10, Fig. 1, each of said bearings being both a rocking and a rolling bearing,so that the foot-piece A may be both tilted and swung readily from one side to the other, which will result in swinging the roller-frame to one side or the other, thereby directing the movement of the skate to that side to which the foot-piece is tilted, as usualin skates of this eharacterh It will be noticed, however, that there are no trunnion or pivot bearings,that the upperbearings, c as, are practically a ball-and-socket joint, and that the lower bearing is a rolling bearing and rocking bearing,the parts moving upon each other without friction, the lower bearing being he 7 low the top 2 of the frame B. The finger f holds the head 0 in its socket, while the contact of the lower bearing-pieces is maintained by the action of a spring, F, which tends to press the frame D toward the bracket B, but yields readily to permit one to play upon the other. The rounded or conveXed shape of the under side or bearing .2 upon the spring F tends to facilitate the rocking motion of one part upon the other without imparting in- 8 creased compression to'the spring as the an gle of one part to the other is increased.

To permit the axle or axles to be readily detached, and yet securely held in place when removal is not required, I perforate transo versely both the frame and the axle, and extend through such perforation the end i of a spring, N, secured to the frame at its opposite end. The pin 2' holds the axle in place, the spring preventing the pin from becoming dis- 5 placed, but permitting it to be readily drawn out, when the axle may be removed.

As shown, the axle consists of two rods, with overlapping ends within the frame, the

overlapping portions being perforated for the -bearing 2.

passage of the single pin i,which thus secures both rods in place. The lower rear bearing of each bracket B'may be a plain rounded face. It is, however, preferable to provide it with teeth, which tend to prevent slipping of one part upon the other, and the spring F may in some casesbe dispensed with,thescrewpin G being brought against the convexed It is preferable, however, to use the spring, which tends to maintain the parts in their central position until force is applied to alter their relations.

1. The combination, in a roller-skate, of a frame supported by the rollers, and abraeket secured to the footpiece of the skate and provided at one end with a socket adapted to engage With the knob at the end of an upwardlyprojecting arm on said frame, and alowerrocking and rolling hearing at the opposite end of the bracket and frame below the top 2 of the frame, substantially as set forth.

2. The combination, in a roller-skate, of the roller-frame, a foot piece provided with a bracket having at one end a pendent arm extending downward inside and below the top of the frame, and at the opposite end a socket adapted to receive the-knob at the end of an upwardly-proj ecting arm on said roller-frame, and a screw-bolt extending into the bracket and clamping an elastic block against the roller-frame, substantially as set'forth.

3. The combination of the bracket, the roller-frame having bearings on a diagonal line, as set forth, screw pin G, and spring F, clamped by the screw against a convexed face, z, on the under side of the roller-frame, substantially as set forth.

4:. The combination, with the roller-frame, of the bracket secured 'to the foot-piece having an outer bearing upon the frame, and with an inner downwardly-1.)rojecting arm terminating in teeth adapted to a toothed bearing at the inner side and below the top of the frame, the two bearings arranged to permit the roller-frame to swing on a diagonal line,

substantially as set forth.

5. The combination of the frame having a box or recess to receive the spring F, screw holding the parts together, and bearings at the front and rear above and below the top of the frame, substantially as described.

6. The aXle in two separate perforated parts, in combination with the frame having side arms and central boX for the axle, and with holes to receive the end of a spring-key, substantially as described.

7. The combination, with the detachable axle perforated to coincide with the perforations in the frame, of a spring connected to the frame and terminating in a; pin extending through both perforations, substantially as set forth.

8. The combination,with the axlein two sec tions with overlapping perforated ends, of a perforated frame receiving said ends, and a spring terminating in apin extending through said perforations, substantially as set forth.

In testimony whereof Ihave signed my name to this specification in the presence of two sub-. scribing witnesses.

JOHN LOVETT.

Witnesses:

WILLIAM M. COVAL, ALFRED F. POTTS.