Improvements in Velocipedes.
Year: 1889

page_text: Date of Application, 12th Sept., 1889
Complete Specification Left, 2nd June, 1890-Accepted, 19th July, 1890
PROVISIONAL SPECIFICATION.
Improvements in Velocipedes.
GEORGE DARBEY 7 Perry Road Bristol Violin Maker and Dealer do hereby declare
the nature of this invention to be as follows:-
A diamond frame with spiral spring attached horizontally from one angle to the
other to be fixed to forks and wheels of cycles to relieve the rider of vibration.
The bracket is of a small diamond shape and fixed at the end of cycle forks and
joining the wheel. The bracket has a moveable joint at each corner the spring is
attached to two of them in a parallel position, when the weight of the rider comes on
the machine or rough roads the brackets moves at the joints causing the spring to
expand and relieves the rider from the vibration.
Dated this 11th day of September 1889.
COMPLETE SPECIFICATION.
Improvements in Velocipedes.
I, GEORGE DARBEY, of No. 7, Perry Road Bristol, in the County of Gloucester,
Violin Maker and 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 :—
My invention relates to an improvement in velocipedes, and has for its object the
prevention or diminution of vibration.
In order that my invention may be the better understood, I have appended the
accompanying sheet of drawings in which, Figure 1 represents a side elevation of
the improved bearing or anti-vibration device, and Figure 2 is an end elevation of the
same, similar lec'ers of reference indicating corresponding parts throughout the several
views.
In carrying my invention into effect I employ a set of links a. b. c d, jointed
at e. f g h, forming a paralellogram, shewn by Figure 1. The upper members or
links a-b.re jointed at e to the frame or fork of the velocipede, and in the instance
shewn by the drawings the invention is applied to the trailing wheel of a bicycle,
although I wish it to be understood that it is applicable to any form of velocipede. A.
spring is coupled between the joints f. h, and its tension is in opposition to the
weight of the rider, since this is vertically or approximately vertically applied from
the back bone or frame A. The arms c and d of the paralellogram are linked at g to
the spindle or pin E upon which the wheel revolves. Said spindle or pin is free to
move vertically between two resilient washers C. C, either by the variation of the
weight carried by the velocipede or the variation of the road upon which it travels,
but in all cases such vertical movement causes an extension of the links forming the
parallelogram a b c d and the spring D tending to maintain the relative positions of
the points and 7, also controls the vertical motion of the point g within the slot or
fork F, said movement being limited by the distance between the blocks C. C'. The
momentum of vibration during the use of the velocipede is absorbed by the spring D,
and the whole arrangement is duplicated to carry both ends of the spindle upon
which the wheel revolves, and is applicable to each or any of the wheels of a velocipede
of any type.

page_text: 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-
In velocipedes the method of, and means for, supporting the spindle or pin of
each or any wheel by means of a combination of levers and spring, substantially as
herein described and shewn.
Dated this 24th day of May 1800
FREDK. WALKER & HYDE,
4, Moorfields, Fore Street, London, E.C., Agents for the Applicant.