Improved Means for Raising and Lowering the Saddles of Cycles.
Year: 1897

page_text: Date of Application, 13th Feb., 1897
Complete Specification Left, 12th Nov., 1897-Accepted, 1st Jan., 1898
PROVISIONAL SPECIFICATION.
Improved Means for Raising and Lowering the Saddles of Cycles.
I, JOHN LONGMORE of 56, Melville Street, Edinburgh, Banker. do hereby declare
the nature of this invention to be as follows:-
This invention relates to improved means for raising and lowering the saddles
of cycles, and has for its object to enable this to be done quickly and with facility
so as to obviate the present difficulty of loosening and tightening by the ordinary
screw which binds the socket around the saddle post.
In accordance with my invention I provide the back of the saddle post with a
rack, which is operated by means of a pinion hinged on to the ordinary bolt piece
which is at present used for tightening up the saddle post socket. In order to
raise or lower the saddle to the required height, the said bolt piece is rotated by
means of a handle piece or key which thus pushes up or pulls down the pillar by
means of the pinion engaging with the rack.
The rack may be fitted in any convenient manner, for example the pillar may be
slotted so that the rack can be fitted inside the pillar so as to be approximately
flush with it.
Then in order to fix the post at the required height I may so fix the handle
on to the end of the short shaft or bolt of the pinion by a pivotted or hinged
arrangement, that by folding the handle the said bolt piece is jammed, or the lugs
for the bolt drawn together, so as to prevent the saddle post moving. The said
jointed handle acting after the manner of an eccentric.
COMPLETE SPECIFICATION.
Improved Means for Raising and Lowering the Saddles of Cycles.
I, JOHN LONGMORE of 56 Melville Street, Edinburgh, Banker. 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 improved means for fixing or securing cycle saddles
in position after their height has been adjusted and has for its object to enable
this to be done quickly and with facility so as to obviate the present difficulty
of loosening and tightening by the ordinary screw which binds the socket around
the saddle post.
For this purpose I employ an eccentric clamp arrangement which upon being
operated alternately loosens or tightens the split socket of the saddle pillar.

page_text: But in order that my said invention may be more readily understood and easily
carried into effect I will proceed to describe the same with reference to the accom-
panying drawings in which:
Fig. 1 is a rear view and
Fig. 2 a side view of a portion of a bicycle frame and seat pillar shewing my
improvements applied thereto.
I provide the bolt A which passes through the lugs 6 of the split socket B with
a snug or projection a to which the handle or lever C is pivotted by means of the
fork c.
The said fork c bears against a washer or disc D and is formed as shewn in
Fig. 1 that is to say square but with the corners rounded. The pin by which the
fork is pivotted to the snug a is so situated that the distance from the centre thereof
to the side of the fork (when the handle is in a vertical position) is greater than
between the centre and the top of the fork. It will be readily seen therefore that
when the handle is raised to a horizontal position, the pressure upon the disc and
consequently the split socket will be released and vice versa.
By reason of the square formation of the fork the handle is retained firmly in
position when in its dependent or vertical position.
In order to adjust this pressure and to enable the means to be applied to cycles
of different makes I provide the other end of the bolt with two nuts E, the inner
nut to regulate the length of the bolt and the outer nut to lock the inner one and
prevent it moving when the lever is relaxed.
If desired the saddle post may, for any suitable distance, have inches and the
subsequent divisions thereof indicated upon it to facilitate the adjustment of the
height of the saddle.
•
The formation of the forked end of the lever may be varied so long as an
eccentric action is obtained, for example the fork may be formed circularly or cam
shaped to gradually increase the pressure upon the lowering of the handle or
lever.
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 I
claim is:
1. The improved means for fixing or securing cycle saddles in position after their
height has been adjusted, substantially as hereinbefore described and shewn in the
accompanying drawings.
2. In means for fixing or securing cycle saddles in position after their height
has been adjusted, the handle or lever C pivotted upon the snug a of the bolt A
and the nuts E upon the other end of the bolt, whereby the binding socket of the
seat pillar can be loosened and tightened and the extent of pressure exerted by the
handle adjusted; or the mechanical equivalent of the said arrangements, substan
tially as hereinbefore described and shewn in the accompanying drawings.
D1004
100%
JOHNSONS
Applicant's Agents, 115, St. Vincent Street, Glasgow.
JOHNSONS
Applicant's Agents, 115, St. Vincent Street, Glasgow.