IMPROVEMENTS IN BICYCLES, TRICYCLES, AND OTHER VELOCIPEDES
Year: 1880

page_text: LETTERS PATENT to Henry. Hayward, of Gloucester, in the County of
Gloucester, John Day, of Southsea, in the County of Hants, and John Henry
Gosling, of Southsea aforesaid, for an Invention of IMPROVEMENTS IN
"
PROVISIONAL SPECIFICATION left by the said Henry Hayward, John Day,
& John Henry Gosling at the Office of the Commissioners of Patents on the
22nd November 1880.
HENRY HAYWARD, of Gloucester, in the County of Gloucester, JOHN DAY, of
Southsea, in the County of Hants, and JOHN HENRY GOSLING, of Southsea
aforesaid. "IMPROVEMENTS IN BICYCLES, TRICYCLES, AND OTHER VELOCIPEDES."
Our Invention relates to the improvements hereinafter described, applicable to
bicycles, tricycles, and other velocipedes.
In carrying out our Invention as applied to a bicycle we employ a hollow hub
for the driving wheel, within which works the axle driven by the cranks in the
usual manner; the driving axle carries a cog wheel which gears with a smaller
cog wheel or pinion on a spindle working in the fork; the said spindle also carries
a cog wheel, of about the same size as the first herein before described cog wheel,
which gears with a small cog wheel or pinion on the hollow hub.
By this arrangement of multiplying gear it will be understood that the speed of
the driving wheel will be greater than that of the driving axle, in consequence of
the difference between the number of teeth in the cog wheels and pinions, which
difference of speed may be regulated as required.
A suitable cover or case encloses the gearing.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Henry Hayward, John Day, & Henry Gosling in the Great
Seal Patent Office on the 20th May 1881.
HENRY HAYWARD, of Gloucester, in the County of Gloucester, JOHN DAY, of
Southsea, in the County of Hants, and JOHN HENRY GOSLING, of Southsea
aforesaid. "IMPROVEMENTS IN BICYCLES, TRICYCLES, AND OTHER VELOCIPEDES."
Our Invention relates to the improvements hereinafter described in and
applicable to bicycles, tricycles, and other velocipedes.
In carrying out our Invention as applied to a bicycle we employ a hollow hub
for the driving wheel, within which works the axle driven by the cranks in the
usual manner; the driving axle carries a cog wheel which gears with a smaller
cog wheel or pinion on a spindle working in the fork; the said spindle also carries
a cog wheel (of about the same size as the first hereinbefore described cog wheel),
which gears with a small cog wheel or pinion on the hollow hub.
A suitable cover or case encloses the gearing.
But to make our Invention better understood we will proceed to describe the
same by reference to the accompanying Drawing, in which Figure 1 is a part
sectional front elevation of the front or driving wheel of a bicycle with our
improvements applied thereto; Figure 2 is a side elevation of the cover or case
shewing the arrangement of multiplying gear contained therein, and Figure 3 is a
section taken through the cog wheel k, Figure 1. Similar letters in all the Figures
represent similar or corresponding parts.
a is the hollow hub chambered out at a¹ at each end to receive the steel rollers a³
(or balls) forming the bearing for the same; b is the driving axle working within
the hollow hub a, and driven by the cranks c in the usual manner; d is the cog
wheel mounted on the driving axle b, and gearing with the smaller cog wheel or
pinion e fixed on the spindle f, working in a roller (or ball) bearing g in the boss h
formed on the fork i; j is the cog wheel of about the same size as the cog wheel d,
also fixed on the spindle f, and gearing with the small cog wheel or pinion k (of
about the same size as the cog wheel e) keyed on the hollow hub a; is the inner
cover or casing enclosing the arrangement of gearing, and forming part of the
hollow hub a; m is the outer cover or casing formed in two parts, fixed to the
fork by means of the screws n and o, or in any other suitable manner; p is a stay
extending from the bottom of the bearing q to receive the screw o. Instead of the
spindle being loose it may be fixed, and the wheels e and j may turn thereon.
We have described our Invention as applied to a bicycle, but its application to
tricycles and other velocipedes will be understood without further description.
By this arrangement of multiplying gear it will be understood that the speed of
the driving wheel A will be greater than that of the driving axle b, in consequence
of the difference between the number of teeth in the cog wheels and pinions d, e, j,
and k forming the gearing, which difference of speed may be regulated as required
by varying the size of the cog wheels.
Having thus described the nature of our said Invention, and the best means with
which we are acquainted for carrying the same into effect, we would have it
understood that we do not confine ourselves to the precise details shewn and
described, as the same may be varied without departing from the peculiar character
of our Invention, but what we claim is,-
Firstly. The method herein described of driving bicycles, tricycles, and other
velocipedes by the employment of an arrangement of multiplying gear in com-
bination with a hollow hub on the driving axle of the machine, as hereinbefore
described.

page_text: Secondly. The peculiar combination of parts forming an arrangement of
multiplying gear for bicycles, tricycles, and other velocipedes, as hereinbefore
described and represented in the accompanying Drawing.
In witness whereof, I, the said John Henry Gosling, for and on behalf of myself
and the said Henry Hayward and John Day, have hereto set my hand and
seal, this Nineteenth day of May, in the year of our Lord One thousand
eight hundred and eighty one.
JOHN HENRY GOSLING. (L.S.)