Improvements in or connected with the Framework of Velocipedes.
Year: 1896

page_text: Date of Application, 15th Sept., 1896
Complete Specification Left, 26th Nov., 1896-Accepted, 9th Jan., 1897
PROVISIONAL SPECIFICATION.
Improvements in or connected with the Framework of
Velocipedes.
We, JOSEPH RUDHAM, of 7 Boyton Terrace, Munster Road, Engineer, and
FRANCIS GEORGE HOBSON, of 43 Fernhurst Road, Commercial Traveller, both
of Fulham, in the County of London, do hereby declare the nature of this
invention to be as follows:-
This invention refers to improvements in the framework of velocipedes, whereby
the said framework may be readily adjusted to suit the height of any rider, or
riders, and at the same time afford efficient support to the seat or saddle pin or
pillar, at whatever height the latter is required to be fixed. Such a construction
while applicable equally to velocipede framework, suitable to riders of either sex,
is of great advantage as applied, say, to velocipedes for ladies, and where it is
desired to raise the seat support to any height above the frame proper. In
conjunction with such adjustment of the frame, we provide an improved strengthened
lower frame, to carry the bearings or pin of the driven wheel or wheels.
In order that our invention may be understood, we will describe an application
to a safety bicycle frame of ordinary or usual type and where the rear wheel is
supported within a double fork of triangular form, as commonly employed.
To the brackets, carrying the axle pin of the rear wheel, we pivot the lower
ends of the stay tubes, which extend upwards and are attached at their upper ends,
to the saddle support or pin. Each of these tubes, are made in two parts,
telescoping into one another and convenient means are provided, such as clamping
devices, whereby the telescopic joints may be held rigid when required; the upper
ends of the tubes are pivotted, say on either side of the saddle pin, by a bolt
passing therethrough, or are secured to a clamping bracket, which embraces for
example, the horizontal member of the saddle pin and can be caused to firmly
grip same.
By this arrangement, the saddle pin may be raised to any height, out of the
main down tube, the telescopic stay tubes being proportionately extended in
length and afterwards locked in position. Thus, when at any height, the saddle
pin is always firmly stayed, and the machine held rigid.
In some cases we have found it desirable to support the rear axle brackets, from
the framework, in a more rigid manner, than is commonly the case when a single
pair of lower stay tubes is employed and with this object in view, we employ a
similar bent tube upon each side of the rear wheel. Thus, describing one side,
the two ends of the bent tube take into sockets, in the bracket carrying the rear
wheel axle, respectively above and below the said axle.
The curved part of the tube, extends forwards in front of and around the bottom
bracket and is there supported, above and below the said bottom bracket bearing
sleeve, by suitable bracket pieces, extending one from the main down tube and the
other from a lower extension of the crank axle bearing tube. To this lower
extension we may, especially in ladies' machines, fix the lower end of the bottom
tube, extending to the head of the machine, and attach the front part of the bent
stay tubes thereto, one on each side.
i

page_text: The bent rear stay tubes, may in some cases be each extended beyond and
rearwards of the rear axle bearing brackets and then the said stay tubes are each
in the form of a continuous loop and one of such tubes, surrounding the chain
gearing (or nearly so), can be utilized to form the framework, of a gear case.
Dated this 15th day of September 1896.
Improvements in or connected with the Framework of
Velocipedes.
We, JOSEPH RUDHAM, of 7 Boyton Terrace, Munster Road, Fulham, London,
Engineer, and FRANCIS GEORGE HOBSON, of 43 Fernhurst Road, Fulham,
London, Commercial Traveller, 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 the construction of cycle frames, and
has for its object the construction of the frame of such machines so as to allow of
the raising and lowering of the saddle or seat as may be required to suit the
height of the rider, and at the same time to afford greater support to the seat
when raised to its greatest height, thereby rendering the said seat much safer and
firmer when so raised.
To attain the above object, the back tubular stays are pivotted at their lower
extremities to the bracket carrying the rear or driving wheel and have at their
upper ends clips to retain the telescopic tubes, such tubes being attached by
Buitable means to the saddle support.
The main pillar or tube also has at its upper end a clip to secure the seat pillar
telescoping therein.
In order that this invention may be more readily understood, drawings are
appended in which Fig. 1. is a back end view of a lady's cycle, embodying our
improvements and Fig. 2. is a side elevation of the same.
A. is a vertical tube having a clip B, secured to the upper end thereof, the
lower being secured to the bottom bracket or axle box in the usual manner.
C. is a smaller tube, telescoping within the tube A. and carrying the clip for the
saddle pin.
D. D. are the back tubular stays, each being pivotted or hinged in any suitable
manner at their lower ends D¹ D to the brackets D2 D2 carrying the rear wheel,
and having at their upper ends two clips E. E. to retain the two tubes F. F.
which telescope within the tubular stays D. D. The upper ends of the tubes
are secured by nuts and bolts or any other suitable means to the clip holding the
saddle pillar or pin.
When the seat is raised or lowered, the two telescopic tubes within the back
stays will be also raised or lowered.
The saddle when raised would occupy the position shewn in Fig. 2 and when
lowered the position would be as indicated by the dotted lines in the same
figure.
The same construction of framework may be applied to machines built either
for ladies or gentlemen, the top stay in the latter case being attached to the
tube A. in a manner similar to that in which such stays are at present secured.
If found convenient, other means of fastening the tubes may be used in place of
the clips E. E.

page_text: Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what
we claim is :-
1. The construction of cycle frames having telescopic back stays, so that the
back stays of the frames may be lengthened or shortened accordingly as the seat
is raised or lowered, substantially as described and set forth in the accompanying
specification and drawing.
2. The improved frame for cycles, substantially as described and set forth in the
accompanying specification and drawing.
J. E. EVANS-JACKSON & Co.,
Agents for the Applicants.