US242157A - Cyclometer - Google Patents

Description

(mm B. s. RITCHIE.

Oyolometer.

No. 242,157. Patented May 31,1881.

Fig.3.

Fig. 2.

Inventor.

Edward S Ede/Lie.

names.

N. PETERS. Pmw-Lnhe m tm wmhm mn. Dv C.

UNITED STATES PATENT OFFICE.

EDWARD S. RITCHIE, OF BROOKLINE, MASSACHUSETTS.

CYCLOMETER.

SPECIFICATION forming part of Letters Patent No. 242,157, dated. May 31, 1881.

Application filed November 10, 1880. tModcl.)

To all whom it may concern Be it known that I, EDWARD S. RITCHIE, of Brookline, in the county of Norfolk and State of Massachusetts, have invented a new and useful Improvement in Odometers, or instruments for indicating the number of revolutions ofa wheel or the distance or distances traveled over by a bicycle or wheetcarriage; and I do hereby declare the same to be described in the following specification and represented in the accompanying drawings, of which- Figure l denotesavertiealsection of amcastiring-instrument of my improved kind as applied to the axle of the wheel of the bicycle. Fig. 2 is an end view of the semicircular magnets and their carrier. Fig. 3 is a front view of the supporter of the magnetic needle and its train, dial, and hand to be described. Fig. 4 is an edge view of said supporter. Fig. 5 is a section showing the train of gearing to be described. Fig.6 denotes approximately the directions assumed by the magnetic needle on its arbor,bein gin positions,as shown,relatively to a single pair of areal magnets. Fig. 7 denotes approximately the directions assumed by the magnetic needle on its arbor, being in the positions, as shown, relatively to two pairs of areal magnets.

The nature of my invention is defined in the claims hereinafter mentioned.

A material part of my odometer consists of two or other suitable number or pairs of magnets and carrier therefor, another and mate rial part of the said odometer consisting in a magnetic needle, a train of gears, a dial, and a hand, and a suitable frame or supporter for them, all being substantially and to operate as hereinafter described.

The carrier of the magnets, as shown and arranged for use on a bicycle, is composed, as shown in Figs. 1 and 2, of two semicircular blocks or pieces, a, of brass or other suitable material, provided with connecting devices, so that it may be readily adapted to and fixed upon the axle B of a bicycle, in order to revolve therewith. The magnets are arranged in the carrier at U D, as shown in Fig. 2-that is, with their north poles in contact or 0011- tiguity, and with their south poles also in contact or contiguity. Near them, and in a frame or hanger or train and dial supporter E, is a short magnetic needle or bar, F, fixed at its middle to an arbor, (1, upon which is secured the first gear or pinion, I), of a train composed of any suitable number of gear-wheels or pinions, c d cfg h 1' 75 l m, the arbor a of the last wheel of the train carrying a hand, 0, to travel around a dial, P, properly divided or marked to represent distances run by the bicycle-wheel.

The dial or train supporter carrying the magnetic needle, as described, is attached to or hung upon the axle B, to turn freely upon it, so as to be stationary relatively to the mag net-carrier, and held by force of gravity from revolving with it.

The force of attraction of the magnets while the wheel revolves will so act on the magnetic needle as to cause it to make one revolution for each revolution ofthe wheel. The dial may be marked to indicate the number of such revolutions or distances run, which will be indicated by the hand.

I do not confine my invention to the use of two magnets, as described, as two or more pairs of magnets may be used with their like poles in contiguity.

It is evident that the dial-supporter E may be fixed to the axle to revolve with it, and the magnet-carrier to turn freely and hold from revolving by force of gravity, the relative coir dition and action remaining the same.

I am aware that a rotary magnet and magnetic needle actuated by it, and both revolving on axes in or nearly in same line, is not new. Such an arrangement is shown in United States Patent No. 75,313. My arrangement difl'ers materially in forming the magnet as circular or ring form, and in the axes being widely eccentric. As shown in drawings and description, the needle revolves in the opposite direction.

WVhat I claim as of my invention in the abovedescribed odometer is as follows, viz:

1. The combination of a shaft or axle, with two or more magnets and a case or support therefor, made in parts, as set forth, so as to render it capable of being attached to the said axle, with a separate case carrying a magnetic needle, to be operated substantiallyas specified.

2. In combination with a shaft or axle and a case or frame carrying a magnet or magnets,

a separate case hearing a magnetic needle, the scribed, so that by the mutual attractions and said cases hein g so arranged that one shall he repulsious of such magnet or n'iagnets and neefastened so as to revolve with the shaft or axle, dle the latter shall be caused to revolve in a while the other remaiusloose, to beheld from direction opposite to that of the said magnet 5 revolution by force of gravity. l or magnets.

3. The combinatlon of one or more magnets, ED WD S. RITCHIE.

forinin g a rim g or portions thereof, and arranged to revolve around an axis, with a magnetic nee- Witnesses: dle disposed in or on a separate ease or carrier l. H. EDDY, [O and arranged substantially as shown and de- S. N. PIPER. I.

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