Improvements in Velocipedes.
Year: 1894

page_text: Date of Application, 30th Jan., 1894-Accepted, 3rd Mar., 1894
Improvements in Velocipedes.
I, GUSTAVE GALLICHER, of 194 Rue du Tondu, Bordeaux, France, Engineer,
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:-
My invention relates to improvements in velocipedes, which consists of a
multiplying or multiplicator for increasing the speed of cycles by means of two
cog wheels mounted in the follower and revolving on pins or screws, the said cogs
of the two cog wheels engaging in holes in the nave or hub of the rear driving
wheel. The apparatus is driven by the pedals and ordinary endless chain by
the cog driver and the cog follower or rear wheel.
And in order that my invention may be thoroughly understood, I now proceed
to describe the accompanying drawing thereof, reference being had to letters and
figures marked thereon.
Parts of Fig. 1, are broken off for want of space.
Fig. 1, is a section of a part of the hub of the wheel perforated, and the cog
follower with the revolving cog wheels.
Fig. 2, is a side view of the perforated hub.
Fig. 3, is a side view of the perforated plate fixed to the axle.
Fig. 4, is a side view of the cog driver with the cog wheels mounted thereon.
Fig. 5, is a plan of a revolving cog wheel.
Like letters refer to like parts throughout the figures.
My multiplying apparatus or multiplicator for increasing the speed of velocipedes
consists of two pinions or cog wheels a which pass through the cog driver 6 usually
mounted on the hind wheel of a velocipede, which said cog wheels a work on two
plates c and d provided with holes e to receive the teeth of the cog wheels a.
The plates c and d are fixed, the one on the axle g and the other in the form of a
nave with a cheek where the radii of the wheels adapt themselves.
My multiplying apparatus or multiplicator can be adapted to all sorts of bicycles,
tricycles or the like.
One side of the cog wheel a gives the speed to the nave c, the other enters the
plate d.
The balls, to prevent friction, used in all velocipedes, are also used on machines
with this multiplicator.
The cog wheels a are fixed to the toothed wheel or follower by means of two
steel pins or screws f.
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
1. In a velocipede, the combination of the perforated nave e perforated plate d
and the two pinions or cog wheels a revolving on the pins f mounted in the cog
follower b, substantially as herein described and according to the accompanying
drawing.
2. In a velocipede, the combination of the two cog wheels a pins or screws f and
cog follower b, substantially as herein described and according to the accompanying
drawing

page_text: 3. In a velocipede, the combination of the various parts mounted on any bicycle,
tricycle or the like-for the purpose of increasing the speed, substantially as herein
described and according to the accompanying drawing.
Dated this 30th day of January 1894.
J. P. BAYLY,
18, Fulham Place, W., Agent for the Applicant.