Improvements in Velocipedes.
Year: 1889

page_text: Date of Application, 5th July, 1889
Complete Specification Left. 22nd Oct.. 1889-Accepted 23rd Nov. 1889
PROVISIONAL SPECIFICATION.
Improvements in Velocipedes.
I, JOHN ASBURY of Cheylesmore, Coventry in the County of Warwick,
Machinist, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in the construction of rear driven velocipedes,
the object being to provide a simple and efficient means for absorbing the vibration of
the running machine, and thus prevent the transmission of the vibration to the feet
and legs of the rider. Pivotted to the extremity of the prongs of the driving wheel
fork, is a pair of radius arms, which serve to carry the axle of the driving wheel or
wheels on their inner ends. These arms extend slightly. beyond the driving axle, to
receive each a guide rod for a coiled pressure spring, by the elasticity of which, the
wheel or wheels may rise over an obstacle without lifting the forked extention of the
back bone. The guide rods are jointed to the prongs of the fork, and their lower
ends, which are screwed, pass freely through the radius arms, and receive each an
adjusting nut for tightening up the coiled springs. In lieu of these radius arms, I
may use balance levers, the one end carrying the driving wheel axle, and the other end
receiving the pressure springs. Or, the position of the radius arms may be reversed,
their inner ends receiving the pivotted nipper, and their outer ends the pressure of
the springs, which are interposed between the radius arms and a rear extension of
the fork of the back-bone. The pedal axle is mounted on the lower extremity
of the fixed stein, which carries the seat or saddle, and a chain passing from a
chain wheel on the pedal axle, transmits rotary motion from the pedal axle,
through a second chain wheel, to the driving wheel axle.
For stiffening the fixed stem which carries the saddle, light tie rods are secured to
the lower end of the stem, a central one extending back from the head of the machine,
and a pair of rods, connected to the prongs of the rear fork, extending forward to
reach the stem.
The steering wheel will be mounted in the usual, or any approved manner.
Dated this 5th day of July 1889.
NEWTON & SON,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Velocipedes.
I JOHN ASBURY of Cheylesmore, Coventry, in the County of Warwick, Machinist,
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:-
This invention relates to improvements in the construction of velocipedes, the object
being to provide a simple and efficient means for absorbing the vibration of the
running machine, and thus prevent more completely than heretofore, the transmission
of the vibrations to the feet and legs of the rider.
The accompanying drawing shows in side elevation the rear portion of a velocipede
arranged according to my invention.
A indicates the driving wheel or wheels, and B¹ the forked extremity of the back-
bone B.-C is the pedal axle for transmitting, through a chain and chain wheels,
motion to the driving wheel A, and D is the stem for carrying the seat or saddle.
Pivotted to the forked extremity of the backbone, is a pair of arms E E, to which
is fitted the axle of the driving wheel or wheels. These arms extend slightly beyond
the driving wheel axle, and are socketted to receive the ends of guide rods jointed to,
and pendent from the lugs of the forked extremity B₁ of the backbone.

page_text: These guide rods are surrounded by coiled pressure springs G G, which yield to
permit of the wheel or wheels rising over an obstacle without lifting the backbone.
The lower ends of these guide rods pass freely through the arms E, and are
threaded to receive each an adjusting stopnut for tightening up the coiled springs
and enabling them to offer proper resistance to the wheel or wheels when rising
over an obstacle in the road.
The pedal axle is mounted on the lower extremity of the fixed stem which
carries the seat or saddle, and a chain passing, as usual, from a chain wheel on
the pedal axle, transmits rotary motion from the pedal axle, through a second chain
wheel, to the driving wheel, which, in the case of a bicycle, is loose on its axle.
For stiffening the fixed stem which carries the saddle, light tie rods are secured
to the lower end of the stem, a central one, extending back from the head of the
machine, and a pair of rods connected to the prongs of the rear fork extending
forward to reach the stem.
The steering wheel will be mounted in the usual, or any approved manner.
A modification of the invention is to reverse the position of the arms E,―their
forward or inner ends, in this case, receiving the pivotted support, and the rear or
outer ends the pressure of the springs, which are interposed between the arms and a
rear extension of the forked extremity of the backbone.
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 :-
Mounting the driving wheel axle of velocipedes in a pair of arms pivotally con-
nected to the forked extremity of the backbone, and maintained in position by pressure
springs supported by guide rods pendent from the backbone fork, and carrying
adjustable stop nuts, as and for the purpose above set forth.
Dated this 92nd day of October 1889.
NEWTON & SON,
Agents for the Applicant.