Spring Support to Seat Pillar of Bicycles.
Year: 1898

page_text: HAYARIONAL DIECIFICATION.
Spring Support to Seat Pillar of Bicycles.
VICTOR ALBERT, Jeweller, Conway Road, Colwyn Bay, North Wales, do hereby
declare the nature of this invention to be as follows;-
The seat pillar of an ordinary bicycle is rigidly attached to the frame and trans-
mits every jolt caused by the unevenness of the roadway to the rider, this invention
which is clearly shewn on the accompanying drawing purposes to obviate this in
the following manner:-the letters refer to corresponding letters on the drawing.
A is an ordinary bicycle frame with the centre upright stay A¹ made of greater
than usual diameter and closed at a convenient distance from the top by a stop B.
C is a steel spiral spring placed inside the stay A' and resting on the stop B. The
seat pillar D is made circular with two flat sides the purpose of which is described
below the upper part of the seat pillar is made smooth and the lower part has
a screw thread to carry the nut E this nut rests loose on the top of the spring C
and may be screwed up or down on the seat pillar to suit the length of leg of the
rider.
F is a guide whose external diameter is the same as the internal diameter of the
stay A' and whose internal diameter is the same as the external diameter of the
seat pillar D and has two flat sides to correspond with the flat sides above described
on the seat pillar D. The guide F is slipped into the head of the stay A¹ and
secured in position by tightening the screw-bolt G in the same manner as the
ordinary seat pillar is secured. The seat pillar D is free to move up and down
in the guide F but is prevented from turning round by the flat sides before described
and the weight of the rider is supported by the screw-nut E on the spring C which
takes any jolt or vibration.
In order to raise or lower the seat for a tall or short rider the screw-bolt G must
be slackened and the guide F and seat pillar D pulled out then the nut E may
be screwed up or down, the whole replaced in position and the bolt G tightened.
Dated this Eighth day of December 1898.
VICTOR ALBERT, Conway Road, Colwyn Bay, North Wales, Jeweller, do hereby
declare the nature of this invention and in what manner the same is to be per-
[Price 8d.]

page_text: formed, to be particularly described and ascertained in and by the following
statement:-
The seat pillar of an ordinary bicycle is rigidly attached to the frame and trans-
mits every jolt caused by the unevenness of the roadway to the rider, this invention
which is clearly shewn on the drawing left with the Provisional Specification
purposes to obviate this in the following manner; the letters refer to corresponding
letters on the drawing.
A is an ordinary bicycle frame with the centre upright stay A¹ made of greater
than usual diameter and closed at a convenient distance from the top by a stop B.
C is a steel spiral spring placed inside the stay A¹ and resting on the stop B.
The seat pillar D is made circular with two flat sides the purpose of which is
described below, the upper part of the seat pillar is made smooth and the lower
part has a screw thread to carry the nut E, this nut rests loose on the top of the
spring C and may be screwed up or down on the seat pillar to suit the length
of leg of the rider.
F is a guide whose external diameter is the same as the internal diameter
of the stay A¹ and whose internal diameter is the same as
the
external diameter of the seat pillar D and has two flat sides to correspond
with the flat sides above described on the seat pillar D, the guide F is slipped
into the head of the stay A¹ and secured in position by tightening the screw
bolt G in the same manner as the ordinary seat pillar is secured. The seat pillar D
is free to move up and down in the guide F but is prevented from turning round
by the flat sides before described and the weight of the rider is supported by the
screw nut E on the spring C which takes any jolt or vibration. In order to raise
or lower the seat for a tall or short rider the screw bolt G must be slackened and
the guide and seat pillar D pulled out then the nut E may be screwed up or
down, the whole replaced in position and the bolt G tightened.
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;-
The idea of placing a spiral spring inside the centre upright stay of a bicycle
frame and supporting the seat pillar of the bicycle on the said spring instead of the
usual rigid attachment of the seat pillar to the frame and instead of any method of
applying a spring or springs other than by placing inside the stay as above
described also in making the said support adjustable so that the seat may be
raised or lowered to any height above the frame (within certain limits) without
detracting from the advantages conferred by the spring.
Dated this Tenth day of March 1899