Improvements in and relating to Cycles.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Improvements in and relating to Cycles.
We, JOHN STEWART MACARTHUR, Paint Manufacturer of Dunclutha, St. Johns
Road, Pollokshields, in the County of the City of Glasgow, and WILLIAM CARSON,
Naval Architect of 3 Park Terrace, Govan, in the County of Lanark, do hereby,
declare the nature of our invention to be as follows.
This invention has reference to improvements in and relating to cycles.
As applied to a bicycle the front steering wheel would be preferably about half
the diameter of the ordinary rear wheel.
The front fork would be extended down to carry the axis of steering wheel, and
would be bent or curved rearwards, so that the centre line of this wheel shall be
to the rear of the line or axis of the front vertical tube. A stay would be brought
from the lower part of the fork tube to join the other stays at the pedal driving
chain wheel and the bicycle frame may otherwise be of the usual diamond pattern.
The steering handles of cycle may be shorter than usual.
By these improvements when the cycle travels on the road, the centre plane of
the front steering wheel, which is at right angles to its axis, is always maintained
in the longitudinal vertical centre plane of the machine.
Dated this 7th day of September 1896.
W. R. M. THOMPSON & Co.,
96 Buchanan Street, Glasgow, Agents.
COMPLETE SPECIFICATION.
Improvements in and relating to Cycles.
We, JOHN STEWART MACARTHUR, Paint Manufacturer of Dunclutha, St. Johns.
Road, Pollokshields, in the County of the City of Glasgow, and WILLIAM CARSON,
Naval Architect of 3 Park Terrace, Govan, in the County of Lanark, do hereby
declare the nature of our Invention and in what manner the same is to be performed
to be particularly described and ascertained in and by the following statement,
that is to say:-
This Invention has reference to improvements in and relating to cycles.
And in order that our said Invention and the manner of carrying same into
practice may be properly understood we have hereunto appended a sheet of
explanatory drawings in which Figures 1 and 2 represent elevations of a lady's
and gentleman's form of bicycle respectively as constructed in accordance with our
improvements, while Figure 3 represents a diagramatic detached elevation of the
front wheel and fork illustrating our improvements applied thereto.

page_text: Referring to these drawings:-
As applied to a bicycle the front steering wheel A would preferably be smaller
than the ordinary rear wheel B although it may be of the same size.
By our improvements the front fork a is extended down to carry the axis A¹ of
steering wheel A and is bent or curved rearwards at a¹ so that the centre of this
wheel A shall be to the rear of the line or axis of the front vertical tube a³ as
illustrated by the dotted lines 6 6 respectively in Figure 3. A stay C is brought
from the lower part of the fork tube a² to join the other stays at the pedal driving
chain wheel C and the bicycle frame may otherwise be of the usual diamond
pattern.
The steering handles of cycle may branch out from a single tiller arm D thence
extend as D¹ to a suitable distance from the saddle, or be of the usual type.
By these improvements when the cycle travels on the road, the centre plane of
the front steering wheel A which is at right angles to its axis, is always maintained
in the longitudinal vertical centre plane of the machine.
Having now particularly described and ascertained the nature of our said
Invention and in what manner the same is to be performed we declare that what
we claim is :-
In cycles, the constructing of the front fork to curve rearwards so that the
vertical centre line of the steering wheel shall be to the rear of the line or axis of
the front vertical tube, substantially as herein described in reference to and shown
in the accompanying drawings.
1907
W. R. M. THOMPSON & Co.,
96 Buchanan Street, Glasgow, Agents.