Improvements in Saddle Supporting Devices for Cycles and the like.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvements in Saddle Supporting Devices for Cycles and the like.
I, DOSSABIIOI SHAPOOYE FRASER, of 102/4, Girgaon Back Road, Bombay,
India, Doctor of Medicine, do hereby declare the nature of this invention
to be as follows:-
This invention relates to improvements in spring supporting devices for
the saddles of cycles and like vehicles, (hereinafter referred to as "cycles").
and has special reference to devices of the kind described in the Specification of
Letters Patent No. 6280 of 1897, granted to me, the object of the invention
being to enable such device to be made as a self-contained device applicable to
existing cycles in which the saddle pillar is nipped in a downwardly arranged
frame tube in the customary manner, without any alteration of the cycle itself,
so as to avoid such disadvantages as appertain to the alteration of existing
cycles, and to render the device more generally applicable than at present.
To this end, in carrying out the invention, I arrange the means by which I
support the saddle or seat pillar in a yielding manner within an enclosing tube
intended to be dropped into and to be located within the diagonal or down
tube of the cycle frame by the customary means of locating the downward
member of the saddle pillar, so that such enclosing tube together with the
saddle pillar and all the parts enclosed by the tube and supporting the saddle
pillar can, as a whole, be applied to and removed from the cycle frame.
Within the tube is arranged a helical spring so as to have a bearing at the
bottom or a lower part of the tube and such bearing may be adjustable to
facilitate any desired adjustment of the tension of the spring, while the upper
end of the spring may be fitted with a cover plate working freely within the
tube, the top end of the tube being fitted internally with an adjustable closing
piece centrally through which the vertical member of the saddle pillar passes
with a limited freedom of endway movement, its inner end resting at all times
on the spring cover plate so as to be supported thereby in a yielding manner.
The endway movement of the saddle pillar in the said adjustable closing piece may
be limited by slotting the latter longitudinally and inserting screw pins through
,such slots into the inner depending member of the saddle pillar, or in any
other suitable manner.
The upper and lower adjustments of the containing tube offer considerable
facilities in readily adapting the interposed spring to any required tension, and
all of the operative parts being contained in a tube independent of the cycle
frame tube enables the device as a whole to be readily adjusted in the cycle
frame tube and to be securely located by the customary means of fixedly
locating the saddle pillar, while allowing of the saddle being mounted on a
yielding support.

page_text: Improvements in Saddle Supporting Devices for Cycles and the like.
I, DOSSABHOI SHAPOOYE FRASER, of 102/4, Girgaon Back Road, Bombay,
India, Doctor of Medicine, 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 an improved device for supporting, in a yielding
manner, the seat pillars of cycles and like vehicles, and consists of a self-con-
tained device applicable to existing cycles in which the seat pillar is supported
in an unyielding manner by being nipped by a bolt in the seat bracket at the top
of the diagonal frame tube, without any alteration of the cycle itself, whereby
such disadvantages as appertain to such existing devices of the kind which
require the cycle to be altered or adapted to them are avoided, the improved
device thus permitting of the advantages of a yielding seat pillar being more
generally obtained.
On the accompanying drawings,
Figure 1, represents the improved device in sectional elevation, showing the
same applied to an ordinary cycle frame shown in dotted outline;
Fig. 2, represents a sectional plan on 2-2, Fig. 1, without representing the
cycle frame;
Fig. 3, represents a like view on 3-3, Fig. 1; and Fig. 4, represents a like
view on 4-4, Fig. 1.
In carrying out the invention, I arrange within the upper end of an encasing
tube, 1, a guide tube, 2, locating the same in the tube, 1, in a separable manner
by screws, 3, and I arrange within the tube, 2, the stem or downward member, 4.
of the seat pillar, locating the same in the tube in a separable manner and also
in such a manner as to allow of limited endway or falling and rising movements
of the seat pillar and as to prevent rotative movements thereof by screws, 5,
working in slots, 6, made in the tube, 2.
I also arrange within the lower end of the tube, 1, an internally screw-threaded
collar, 7, locating the same in the tube in a separable manner by screws, 8, and
within and engaging with such collar I arrange in an adjustable manner an
externally screw-threaded elongated tubular bolt, 9, having a flange, 10, at its
top end, and being nicked at 11, at both its top and bottom ends to facilitate
its placement and its adjustment in the collar, 7, by means of a screw-driver
or the like.
Between the bottom of the seat pillar stem and the top of the adjustable
bolt, 9, I arrange a helical spring. 12, preferably locating the spring ends in
flanged caps, 13, which respectively bear against the adjacent pillar stem. and
bolt ends and act as seatings to the spring ends.
:
The adjustable bolt, 9, enables the resistance of the spring, 12, to be readily
accommodated to the weight of the rider, upon the bolt being screwed up or
down in the collar, 7, from its bottom nick, 11, as may be required.
The seat pillar stem can, at any time, be withdrawn from the tube, 2, without
releasing the spring, 12, by removing the screws, 5, through holes, 14, in the
tube, 1.
The device thus forms a self-contained cycle auxiliary, as an entity applicable
to and removable from the diagonal frame tube, 15, of a cycle, without any
alteration of the latter, and is located within the ordinary seat bracket, 16, by
the ordinary nut and bolt, 17, exactly in the manner in which the ordinary seat
pillar is located in a rigid or unyielding manner, but with the advantage of
obtaining a yielding seat pillar.

page_text: The device also allows of any desired adjustment of the height of the seat
to suit different riders, without requiring any alteration in the adjustment or
relation of its parts, and simply by slackening and refastening the nut, 17, and
raising or lowering the device as required.
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:
A device for supporting in a yielding manner the seat pillars of cycles and like
vehicles, characterized by the co-operative combination of an encasing tube, an
upper guide tube, a guided seat pillar, an under adjusting device, and a spring
intermediate of the seat pillar stem and the adjusting device and supporting
the seat pillar, the encasing tube rigidly locating the guide tube and a collar
wherein the adjusting device takes its bearing, and the guide tube being slotted
and locating the seat pillar stem with facility of a limited endway movement
thereof and preventing any rotative movement, the device being self-contained
and applicable as an entity to such vehicles wherein the seat pillar is supported
by being nipped by a bolt in the seat bracket and being located by such means
in any desired position without affecting the adjustment of its parts, as set
forth.
1411 41 J...
11 1000
DAY, DAVIES & HUNT,
Chartered Patent Agents, 321, High Holborn, London, W.C.,
Agents for the Applicant.