Improved Gravity Wheel for Cycles.
Year: 1896

page_text: Date of Application, 10th Jan., 1896
Complete Specification Left, 20th Mar., 1896-Accepted, 13th June, 1896
PROVISIONAL SPECIFICATION.
Improved Gravity Wheel for Cycles.
THOMAS HAYSMAN Bicycle Maker 189 Fratton Road Portsmouth do hereby
declare the nature of this invention to be as follows:-
The wheel is formed of two distinct parts viz. the outer & inner wheels.
The inner carrying the axle runs with the outer wheel in a toothed wheel or
other device in advance of the centre of wheel proper. Light discs are screwed on
outer toothed wheel edges carrying friction plates to reduce friction and to keep
centre wheel in position the breadth of the inner wheel may vary according to the
load it has to carry. If heavy load a broad rim would be required if light load a
narrower rim. Where very light wheels are required such as bicycles the inner
rim may be made with wood.
The object of this invention is to construct a wheel in such a manner that the
weight or load the wheels carry shall assist in propelling machine or vehicle, the
wheel is formed of two distinct parts, viz., the outer wheel, and the inner wheel,
the inner wheel carrying the axle, runs with the outer wheel, in a toothed rim or
diaphragm, a disc or plate is screwed on each side of said diaphragm, small steel
friction plates are riveted to plate or disc to reduce friction, and also to keep inner
wheel in position.
January 10th 1806.
THOMAS HAYSMAN Bicycle Maker 189 Fratton Road Fratton Portsmouth 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 :-
The object of this invention is to construct a wheel in such a manner that the
weight or load the wheels carry shall assist in propelling machine the wheel is
formed of two distinct parts viz. the outer wheel, and the inner wheel. The inner
wheel carrying the axle runs with the outer wheel in a toothed rim or diaphragm,
a disc or plate is screwed on each side of said diaphragm, small steel friction
plates are riveted to plate or disc to reduce friction and also to keep inner wheel
in position.
Fig. 1 represents a 28 in. bicycle wheel complete, without tyre, with plates
screwed on and left transparent shewing how inner wheel engages with said wheel
when in motion.
Fig. 2 represents outer wheel only with tyre rim connected to diaphragm with
wire spokes.
Fig. 3 represents inner wheel only with hub connected to rim with wire spokes.
Fig. 4 end view of inner wheel, the cogs K on periphery are in. broad, the
plain part, b. on each side of which is attached a strip of leather, or rubber, or
the like, to prevent noise.

page_text: Fig. 5, inside view of disc or plate to keep inner wheel in position, thin plates
of steel e Fig. 7 are riveted to these plates, and provided with adjusting screws, f,
(Fig. 7). h, hole for bolt to pass through to secure plate to diaphragm.
Fig. 6 outside view of disc or plate exposing head of adjusting screw and
.bolt hole.
Fig. 7 sectional view of friction plate e, g rivet, f adjusting screw.
Fig. 8 end view part of outer wheel 6 diaphragm shewing cog. H wire spokes.
i tyre on rim.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :
The wheel being constructed in two distinct parts, forming one complete wheel.
The inner wheel being smaller than diaphragm of outer wheel allows rim of
inner wheel to impinge on diaphragm of outer wheel, at a position in advance of
centre of outer wheel, which causes the weight carried by cycle to act as propelling
power.
THOMAS HAYSMAN.