Improvements in Gear and Tires for Cycles.
Year: 1892

page_text: Date of Application, 4th Nov., 1392-Accepted, 2nd Dec., 1893
COMPLETE SPECIFICATION.
Improvements in Gear and Tires for Cycles.
1 PHILIPPE FOUGERES of Rue Basfroi, Paris, in the Republic of France,
Furniture Dealer do hereby declare the nature of this invention and in what
manner the same is to be performed to be particularly described and ascertained in
and by the following statement :-
The objects of the invention are to provide an improved gearing for cycles for
transferring the rotary movement of the treadle shalt to the driving wheel and an
improved form of spring tire for the wheels, which move in contact with the
ground.
These improvements are shown by the annexed drawings, in which
Fig. 1 is an elevation of the improved metallic tire of the wheel.
Fig. 2 shows in section the hub of the wheel with improved gear, and Fig. 3 is a
side view thereof with outer case removed.
Fig. 1 shows a new metallic tire with articulated movable plates.. The felly f
is formed of tubular metal being connected with the tire g¹ formed of articulated
metal plates, by means of sliding rods 6'. The separation of the felly and tire is
maintained by means of the coiled springs c'.
In Fig. 2 a shows the axle and b the hub of the wheel turning loosely on the said
axle. is an enlarged box or plate which forms the extremity of one of the forks
and contains and carries the two gear wheels de, on the same axle and connected
together. is a toothed wheel fixed solidly with the part k of the wheel hub and
engaging with the wheel e. The wheel revolving loosely upon the axle a gives
the higher velocity when it is brought into engagement with the axle a by means
of the keys p. This wheel when so engaged receives power from the pedals
transmits the same through the pinion d with which it engages, to the pinion e rigid
with the pinion d and thus to the spur wheelj on the wheel hub. m is a cover and
dust guard. d are the notches in the boss of the wheel ; on the inner side for
engagement of the keys v which control the smaller velocity. e¹ and e¹¹ are the
nuts which serve to send up either pedal crank respectively along the axle a and
thus control the keys by which the engagement of the higher or lower speed
gearing is respectively effected.
If the nut e be screwed up while e¹¹ is loosened the axle will be shifted towards
the left (Fig. 2) with regard to the wheel and forks and the keys p will engage in
their notches in the spur wheel while the keys are disengaged from the notches d'
in the wheel j. The wheel is then driven through the speed gearing 1. d. e. j. If
however the nut e¹¹ be screwed up while e' is loosened the axle a will be shifted
towards the right, the keys p will be disengaged while the keys are engaged, and
the wheel will be driven with the same rotary speed as the pedal cranks by the
direct connection of the axle with the hub of the spur wheel j which is solid with
the wheel hub.
Having now particularly described and ascertained the nature of this said
invention and in what manner the same is to be performed, I declare that what I
claim is ;-
1. The speed and power gear herein described.
2. The improved spring tire with articulated outer rim g¹ substantially as set forth.
Dated this Fourth day of November 1892
HERBERT & Co.,
18, Buckingham Street, Strand, London, W.C.,
Agents for the Applicant.