Improvements in and in connection with Saddle Pillars for Cycles or like Vehicles.
Year: 1899

page_text: Date of Application, 10th July, 1899-Accepted, 12th Aug., 1899
COMPLETE SPECIFICATION:
Improvements in and in connection with Saddle Pillars for Cycles or
like Vehicles.
We, JOHN ROBERT ROBSON, of 5, Middleton Road, Woodhouse Hill, Hunslet,
Leeds, in the County of York, Boiler Maker, and ROBERT ROBSON, of 1, Windsor
Mount, Pepper Road, Hunslet, aforesaid, Boiler Maker, 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 improvements in and in connection with the saddle
pillars of cycles or like vehicles and has for object to lessen or prevent communi-
cation to the saddle of the vibration of the vehicle.
Referring to the accompanying illustrative drawings Fig. 1 shows in vertical
section a saddle support according to this invention.
Figs. 2, 3, 4, 5, 6 and 7 are detail views hereinafter referred to.
The
I is the top tube of a T-shaped saddle pillar, with closed ends 2 and 3; in
the end 3 is an orifice 4 having a screw thread 5 and adapted to receive a non
return air valve to the nipple of which an air pump can be connected.
pillar tube 6 is open at its lower end 7 and near its upper end, which is in free
communication with the tube 1 there are formed longitudinal corrugations or
flutes 8 (Fig. 3) the ends 9, 10 of which form stops to limit the vertical move-
ment of the pillar tube 6. The pillar tube 6 works in a tube 11 secured witliin
the diagonal tube of a cycle frame and closed at its lower end 12 and having
at its upper end 13 a flange 14, the periphery of which may be plain as shown
in Fig. 1, or screw threaded as shown at 15, (Fig. 4); 16, 16 (Figs. 1 and 2)
are guide and stop plates secured to the flange 14 of the cylindrical tube 11
by screws 17, and each formed with a recess, which recesses when the two plates
are placed together form an opening 18 with projections 18 which fit into the
corrugations or flutes 8 on the tube 6 and prevent the tube from turning in the
cylindrical tube 11 and also form stop pieces for the ends 9, 10 of the corrugations
or flutes to engage with.
The lower and parallel part 19 of the pillar tube G encloses a ram 20, closed
at its upper end 21. 22 is a cup leather secured by the plate 23 and sot screw 24
to the closed end 21 of the ram, the lower end 25 of which rests on the closed
end 12 of the cylindrical tube 11. The interior of the upwardly projecting
cup leather 22 is filled with lubricating oil, so that when air under pressure is
adimitted to the interior of the saddle pillar, the cup leather is caused to press
against the inner surface of the saddle pillar thus ensuring lubrication and
making an air tight joint.
盲
The pillar tube 6 instead of being corrugated or fluted (Fig. 1) may be plain
(Fig. 4) and be provided with one or more sliding keys 26 secured to it provided
with stop pieces 27, which slide in keyways 28 in the tube 11 until the stop
pieces 27 come in contact with divided stop plates 29, 29" (Fig. 6) secured to
the flange 14 by a nut 30 (Fig. 7) screwing on the screw thread 15.
arrangement being such that air under pressure forced into the interior of the
saddle pillar through the air valve in the hole 4 causes the saddle pillar to rise
The

page_text: If the
until it is prevented by the lower stops on the pillar tube 6 coming in contact
with the stop or guide plates secured to the flange 14 on the tube 11.
saddle of the machine be sat upon, the air under pressure in the saddle pillar
will act as a cushion and prevent or obviate the communication of the vibration
of the machine to the rider.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed we declare that what
we claim is:-
Means for preventing or obviating the communication of vibration to the
saddles of cycles or like vehicles constructed arranged and operating substantially
as described with reference to and shown in Figs. 1, 2 and 3 and in Figs. 4, 5, 6
and 7 of the drawings attached..
Dated this 10th day of July 1899!
R. E. P. CRAVEN,
Chartered Patent Agent,
King Street Chambers, 52, Wellington Street, Leeds,
Agent for tlie Applicants.