Improvements in Handles for Bicycles and other purposes.
Year: 1891

page_text: Date of Application, 19th Aug., 1891-Accepted, 17th Oct., 1891
COMPLETE SPECIFICATION.
Improvements in Handles for Bicycles and other purposes.
1, HENRY WILLOCK RAVENSHAW, of 32 Albany Road, Ealing Dene, in the
County of Middlesex, Civil Engineer, do hereby declare the nature of my 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 handles for bicycles and other purposes
where there is excessive vibration, which is likely to be felt by the person holding
the handle or in contact therewith. The object of my invention is to provide
means whereby any shock or vibration which is transmitted to the handle is
absorbed in such a manner that it is not felt by the hand holding the handle or
communicated in any way to that part of the person which is in contact with it.
My invention consists in the construction of the handle which I will here
describe as a bicycle handle by way of illustration and in order that my invention
may be better understood I will now describe it in relation to the drawings hereunto
annexed reference being had to the letters and figures marked thereon, like letters
refer to like parts throughout the figures.
Figure I is a longitudinal section through the handle, the handle bar being in
clevation.
Figure II shows a modified method of supporting the handle with additional
intermediate rings.
Figure III shows the application of this invention to a Tee-handle.
I carry my invention out as follows :-
I form the handle proper of a tube a of soft vulcanised indiarubber and I fix it
to the handle bar or support 6 in such a way that the greater part of the indiarubber
tube is not in direct contact with the support.
This I do by inserting projections or rings c. c. of metal, wood, or other
material (but preferably formed of india-rubber) between the interior of tube a and
the handle bar b.
The india-rubber tube a is made of sufficient thickness to support the weight
or pressure it has to bear, without touching the handle bar at any intermediate
point between the supports or rings c, or without the assistance of an internal pressure
of air or other fluid while having sufficient elasticity to absorb vibration.
I prefer to support the handle by making the handle bar or support 6 which
passes through the inside of the rubber handle a in the form of a tube or bar of
metal of smaller diameter than the hole through the inside of the rubber handle a,
the rings, projections, or supports ce being separated from the handle a in the case
of their being made of metal wood etc., but when formed of india-rubber they can
be formed intregal with the handle a.
The tube or handle a may be made of any convenient shape to suit varying
circumstances.
In Fig. III the indiarubber is divided at d into two halves a a³, recesses being cut
out so that the two halves will fit round the handle bar b, each half can thus be
slipped over the end of the Tee.
A Tee piece forming the means of junction between the cross piece and handle
bar 6 is used as the central support for the india rubber handle.
The handle may be divided longitudinally if more convenient for its attachment
to the handle bar or support.

page_text: Having now particularly described and ascertained the nature of my inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1st. A handle to absorb vibration consisting of an exterior envelope or tube of
soft vulcanised india-rubber supported on its interior by a handle bar so that the
greater length of the interior of the envelope or tube is not in contact with its
support, the thickness of the envelope being made sufficient to support the weight,
and prevent contact; and elastic enough to absorb vibration.
2nd. In such an anti vibratory handle a soft india-rubber envelope or tube in
combination with rings, projections, distance pieces, or supports separate from or
integral with the envelope or tube and the support or handle bar substantially as
described and illustrated in the accompanying drawings.
3rd. In a Tee handle of this type the construction and arrangement of parts sub-
stantially as specified and illustrated in the accompanying drawings.
Dated this 19th day of August 1891.
FELL & WILDING,
1, Queen Victoria Street, London, E.C., Agents for the Applicant.