Improvements in and relating to Velocipedes.
Year: 1895

page_text: Date of Application, 23rd May, 1895
Complete Specification Left, 22nd Feb., 1896-Accepted, 28th Mar., 1896
PROVISIONAL SPECIFICATION.
Improvements in and relating to Velocipedes.
I, THEOPHILE DE BACKER, of 77, Rue Van Schoor, Brussels, in the Kingdom
of Belgium, Manufacturer, do hereby declare the nature of this invention to be as.
follows:-
This invention relates to an improved driving gear for velocipedes, and it
consists of reciprocating pedal levers either with or without reciprocating hand
levers, grooved quadrants and bands or cords, and clutch action driving drums, the
said driving gear being applicable either to the front or rear wheels of velocipedes
or to both in combination.
In carrying this invention into practical effect a pair of grooved quadrants are
mounted loosely on a transverse axle carried by the frame, each of the said
quadrants carrying a pedal-crank having the usual pedals. Each of these.
quadrants is connected by a band or cord with a drum mounted loosely on the
axle or hub of the wheel to be driven said drums being connected with the said
axle or hub by means of a ratchet and pawl or other suitable clutch gear.
To ensure reciprocity between the pedals, the drum on one side of the driving
wheel is connected with the drum on the other side of the driving wheel by means
of a pair of bands or cords each attached to a double drum mounted on a short
axle carried in suitable bearings on the frame of the machine, the one cord or
band being wound round the said drum in one direction and the other cord or band.
being wound round the drum in the other direction, so that as one pedal-crank
axle is depressed the other is raised and vice versa.
When it is intended to utilize the arms for driving, a pair of grooved quadrants
are mounted on the transverse handle bar and carry suitable hand levers by
which the said quadrants are rocked on their bearing, the said grooved quadrants
being connected with similar quadrants formed on or fixed to the driving
quadrants on the pedal-crank axle by suitable bands or cords.
Dated
2014 day of M.
ALCO CUSUT &
UL MARY LONAVA
ROBERT E. PHILLIPS, Assoc. M. Inst. C.E., M.1. Mech. E.,
Consulting Engineer and Patent Agent,
70, Chancery Lane, London, W.C., Associate Agent.
Improvements in and relating to Velocipedes.
I, THEOPHILE DE BACKER of 77, Rue Van Schoor, Brussels, in the Kingdom
of Belgium, Manufacturer, 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 invention consists in the application, to any kind of frame of a cycle, of
pulleys and sectors, united by steel or other suitable ropes, in such a way as to
dispense with the toothed wheels and endless chains at present in use.
Motion is communicated by the feet and hands, either together or separately,
as the cyclist chooses.

page_text: At the lower end of the diagonal bar of the frame, on each side thereof and
symmetrically to the plane of the latter, two devices are placed, each composed
in the following manner: A double grooved-sector (A), Fig. 1 moved by a
pedal (P) with which it is a piece, is made to turn to a certain degree round its
axis; this sector is connected, by means of a rope, or cable, thereto, with a
loose pulley (B) on the axle of the driving wheel. The pulley (B) is provided
with pawls (e) which are intended to engage with the teeth of the ratchet-
wheel (N) the latter being keyed on the axle of the driving wheel; the
cable (W) is fastened with one end to the sector, at the point (o) and with the
other end to the pulley (B) so that if the rider presses on the pedal (P)
the pawl, engaging in the ratchet-wheel determines the movement of the driving
wheel, the revolution of which will be greater or less according to the diameter
of the sector (A) and the displacement of the pedal (P).
The same motion is produced on each side of the frame; only, when one of
the pedals is lowered it will be necessary to raise the other, which is done by
means of the pulley (R), Fig. 1, which turns on a little plate secured after the
lower end of the diagonal bar of the frame.
A cable (W) fixed with its ends on each of the pulleys (B) passes in the
groove of the pulley (R).
The hand power is communicated by a sector (C) arranged at the head of
the handle-bar; this grooved sector (C) is in communication, through the
cable (V) with the groove of the smallest diameter of the double sector (A);
motion is communicated by raising and lowering the levers (L) attached to the
sector.
Fig. 2 represents the pulleys (B) on which the cable (W) winds itself and is
fixed, and which is furnished with the pawis (e); the engagement of the pawls
in the teeth of the ratchet wheel (N) is effected by means of a cross-piece (D}
loosely mounted on the axis of the driving wheel between the pulley (B) and
the ratchet wheel. Each arm of the cross-piece is terminated by a little hammer
which bears upon the pawls.
Fig. 3 is a detail view of the ratchet-wheel with the pawls (e) and the cross-
piece (D).
Fig. 4 is a plan view of the sectors (A) and the pulley (R).
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :
A velocipede characterised by a transmission mechanism, arranged on each
side of the machine, and consisting of a sector (A) moved by a pedal (P) and
connected by means of a steel cable (W) or one of some other suitable material,
to a loose pulley (B) on the axle of the driving wheel, having pawls (e) which
engage with a ratchet-wheel (N\ loved to the art of the d
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :
A velocipede characterised by a transmission mechanism, arranged on each
side of the machine, and consisting of a sector (A) moved by a pedal (P) and
connected by means of a steel cable (W) or one of some other suitable material,
to a loose pulley (B) on the axle of the driving wheel, having pawls (e) which
engage with a ratchet wheel (N) keyed to the axle of the driving wheel
turns, a pulley (R) for the alternate raising of the pedal, effected by the cable (W¹)
and a sector (C) with a lever (L) to be worked by hand with the help of the
cable (V), the whole as described in the above Specification and shown in the
accompanying drawings.
Dated this 21st day of February 1896.
L. DUVINAGE,
Agent for Applicant.