US530169A - Percival everitt - Google Patents

Description

, (No Model.) 2 Sheets Shee t- 1- v P. EVERITT, Decd. H M WO0LF Anclllary Executor VELOGIPEDE.

No. 530,169. Patented Dec. 4, 1894.

' Wit/ aws (No- Model.) 2 Sh'eetsSheet '2.

P. EVERITT, Decd.

I H. M. WOOLF, Ancillary Executor.

VELOCIPBDE.

No. 530,169. Patentegg Iva/enfor- Unite STATES" IA'IENTT PEROIVAL EVERITT, OF LONDON, ENGLAND; HENRY M. \VOOLF ANOILLARY EXECUTOR'OF SAID EVERITT, DECEASED.

VELOCIPEDE.

SPECIFICATION forming part of Letters Patent I\l'o. 530,169, dated December 4, 1894.

Application filed June 8, 1892'. Renewed November 2. 1894- Serial No. 527,753. (No model.)

To all whom it may concern.-

Be it known that I, PEROIVAL EVERITT, a subject of the Queen of Great Britain, residing at London, England, have invented new and useful Improvements in'Velocipedes, of

which the following is a specification.

My invention relates to improvements in bicycles and other velo'cipede's of the kind in which the steering-wheel serves also as the rotates within the hub of the driving-wheel to which motion is transmitted from the said pedal-shaft by means of gearing.

According to my invention instead of using 1: 5 the pedal-shaft as the axle of the said drivingwheel as heretofore I provide an independent axle in the form of a hollow sleeve which is firmly carried by the wheel-fork, upon which sleeve the driving-wheel rotates and within which sleeve the pedal-shaft rotates. I also provide an arrangement of gearing for transmitting motion from the pedal-shaft to the driving-wheel.

To enable my invention to be fully under- 2 5 stood I will describe the same as applied to a bicycle.

In the accompanying drawings-Figure 1 is a side elevation of a bicycle provided with my improvements. Fig. 2 is a view drawn to an 0 enlarged scale of the lower end of one arm of the driving-wheel-fork and of the gearing. Fig. 3 is a sectional view drawn to the same scale as Fig. 2, the section being taken on the line to to Fig. 1. Fig. 4 is a section on the line 00 m Fig. 3; and Figs. 5 and 6 are elevations at right angles to each other of a detail. Figs. 7 and 8 are sections on the lines y y and z .2 respectively of Fig. 3.

a, a are the two arms of the driving-wheel- 0 fork, and b is the sleeve upon which the hub c of the driving-wheel rotates, the said sleeve being firmly secured in the said arms by any suit-able means. the ends of the said sleeve are screw-threaded (the screw upon one end being a right hand thread and upon the other end a left hand thread) and adapted to enter correspondingly screw-threaded holes in the end of the fork. The arms of the fork are sprung apart to allow the sleeve to be introduced between them, and are gradually drawn together asthe sleeve As shown in the drawings is screwed up. Of course the sleeve is fixed in position with the wheel thereon, and to allow of screwing up the sleeve I form a hole I) therein to receive the pin of a suitable wrench and a corresponding hole 0 in the hub c.

dis a gear-wheel attached to or formed integral with the hub c, and e is the pedal-shaft K I .havingthe pedal-cranksfif secured thereto. 10 driving-wheel and in which'the pedal-shaft I g is a gear-wheel secured to the crank f, and h is a countershaft carried in a bearing in the fork a and having fixed to it the gear- ;wheels t,j in gear with the gear-wheels (Z, g

respectively.

With the arrangement hereinbefore described it will be obvious that when motion is imparted to the pedal-shaft e the motion thereof will be communicated from the wheel g through the wheel j, the countershaft h and the wheel t' to the wheel (2 and consequently also to the driving wheel of the bicycle. It will also be obvious that it plain bearings are used, any workman skilled in the art to which my invention relates could readily carry out the same. As, however, it is advisable that ball-bearings should be used as far as possible I will describe how such ball-bearin gs may be applied.

To apply the balls is, it between the hub c of the driving-wheel and the sleeve b I form a recess in each end of the said hub and I confine the balls therein by means of nuts I, Z which are screwed into the ends of the said hub. The balls on, m between the sleeve 1) and the pedal-shaft e are applied in the following manner, that is to say, the sleeve b hasrecesses formed in its ends and is made of such a length that it extends only about half way through the holes in the end of the fork in which the said sleeve is carried. The balls are confined in their respective recesses by means of nuts n, n.

The balls 0, o for the intermediate shaft h are arranged in recesses p, p on the inside faces of the wheels 1 j and they are confined therein by nuts q, q surrounding the shaft h and screwed -into corresponding apertures'in the bearing. In order to permit of introducing these nuts q, g, each of them is preferably formed in two parts rabbeted together, as shown in Figs. 5 and 6, to prevent themfrom movinglongitudinallyrelatively toeachothfi These two parts are placed around the shaft h in a recess 1' provided for the purpose and are then screwed into position by means of a wrench which engages with grooves or notches s, s,Fig. 6, formed therein. To prevent the nutsfrom movingafter theyhavebeenscrewed into position I provide a plate 15, Figs. 4 and 8, which is adapted to engage with notches in the bearing and with one notch s of each of the nuts, the said plate being held in position by means of a screw to.

For convenience of construction I find it advantageous to make the bearing for the shaft h in two parts h, h separate from the fork and to connect them by screws 2), o, as indicated most clearly in Fig. 7, and then to attach the said bearing to the fork by means of screws v, as shown most clearlyin Fig. 8.

The chief advantage of myinvention is that by using the fixed sleeve b I provide great rigidity and avoid the excessive wearand friction which would take place if the drivingwheel were mounted directly upon the pedalshaft as has hitherto been the custom in machines in which gearing has been used for transmitting the motion of the pedal-shaft to the driving-wheel mounted upon such axle.

Although I have described my invention as applied to a bicycleit is to be understood that it is also applicable to other velocipedes in which the front wheel serves as the driving wheel.

Having now particularly described and ascertained the natu re of my said inven tion and in whatmanher the same isto be performed, I declare that what I claim is- 1. A driving wheel having a tubular axis running on a fixed cross-tube b which directly connects the forks and is in immediate contact with the axle and by means of right and left hand threads serves to draw the arms of the fork toward each other,combined with the crank-shaft extended through said tube and in direct contact therewith and supported on ball bearings of which this tube forms a part, the balls being lodged in recesses in the outer ends of this tube and in similar recesses in the inner ends of nuts 01 on the shaft, the forks having screw-threaded holes to receive these tightening nuts, all as shown and described.

2. In combinationwith the shaft and with the fixed sleeve I), placed in immediate contacttherewith andon which sleeve the driving wheel rotates, the nuts n, on the sha't and the balls m, between such nuts and the ends of said sleeve,-the nuts Z, on the hub of the driving wheel, and the balls It, held by said nuts within the ends of the hub, all substantially as and for the purposes set forth.

PERCIVAL EVERITI.

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