An Improved Arrangement for Reducing the Vibration Arising from Using Safety Bicycles, Tricycles, and other Carriages upon Bad Roads.
Year: 1888

page_text: Date of Application, 12th Oct., 1888
Complete Specification Left, 10th July, 1889-Accepted, 17th Aug., 1889
PROVISIONAL
SPECIFICATION.
An Improved Arrangement for Reducing the Vibration Arising from
Using Safety Bicycles, Tricycles, and other Carriages upon Bad
Roads.
.
1, RICHARD NIGHTINGALE of 6 Richmond Row Portobello Dublin, Cycle Mechanic
do hereby declare the nature of this invention to be as follows:-
To reduce vibration in the handle-bar, and frames of Safety Bicycles and tricycles,
by hinging the front forks and attaching a compression spring to the lower part of
hinged fork, such spring to slide in a fixed "guide or 'stop' which shall be fixed
to upper part of hinged fork in such a manner as will admit of due oscillation, or in
other words a backward and forward movement having no side shake-This difficulty
in obviating the side shake has not I contend been met by any other spring fork
before the public.
Datad this 10th day of October 1888
RICHARD NIGHTINGALE.
Per J. K. Fahie & Son,
9, Westland Row, Dublin.
COMPLETE SPECIFICATION.
An Improved Arrangement for Reducing the Vibration Arising from
Using Safety Bicycles, Tricycles, and other Carriages upon Bad
Roads.
I, RICHARD NIGHTINGALE 6 Richmond Row, Portobello, Dublin, Cycle Mechanic
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 has reference to improved apparatus for reducing the vibration in
the handle-bar and framework of Bicycles Tricycles and other similar machines.
To this end the ordinary forks are divided and the divided ends are provided
with elbows working on a pivot bolt-To the elbow of the upper part of the fork is
pivoted a pillar which passes freely through a hole or guide in the elbow of the
lower part of the fork-This pillar carries a coil spring the ends of which impinge
against the upper and lower elbows so that any oscillation or irregular motion in the
wheel will be readily absorbed thereby, and the vibration in the handle-bar and
general framework considerably diminished.
The construction and application of my said invention will be readily understood in
reference to the accompanying Drawing.
As above stated the two parts of the limb of the fork are pivoted at a, and the
pillar carrying the coil spring works on the pin b, while its upper end slides freely in
an aperture c, so that when the machine is weighted the coil spring is compressed
accordingly, and in like manner, as the wheel runs over rough or uneven surfaces the
vibration caused thereby is readily absorbed and neutralized by the action of the said
spring.

page_text: Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what [
claim is
In the construction of Bicycles, and Tricycles and other similar machines the
application and use of a coil spring in the manner and for the purpose substantially
as herein specified and set forth.
DLL:
ليم
J
TI
1000
J. K. FAHIE & SON,
9, Westland Row, Dublin, Agents for Applicant.