Improvements in Frames for Bicycles, Tricycles, and other Vehicles
Year: 1890

page_text: Date of Application, 27th Oct., 1890
Complete Specification Left, 27th May, 1891-Accepted, 18th July, 1891
PROVISIONAL SPECIFICATION.
Improvements in Frames for Bicycles, Tricycles, and other Vehicles
GEORGE HARCOURT of 45 Essex Street, Strand, London W.C. Wood Engraver
and RICHARD RUSSELL GUBBINS of Belvedere, in the County of Kent, Engineer,
do hereby declare the nature of this invention to be as follows:-
The object of our invention is to make a frame or body for bicycles tricycles and
other similar vehicles of a more suitable character for resisting the strains to which
such vehicles are exposed and at a smaller expense of labour and material than
can be done by any of the methods of manufacture now in vogue in the bicycle
trade with which we are acquainted.
In order to make a.bicycle frame. in accordance with our design, it is only
necessary to procure a piece of straight tube of sufficient strength and length, this
is then heated so as to bend easily, and being filled with sand as is customary in
bending tubes, is bent round in a coil of one turn and a half so that both its
ends come out together, that is to say on the same side of the coil.
The ends of the tube above mentioned, are then properly set in the same plane,
and are fitted with the usual pivotted attachments for securing them to the fork
which carries the front or steering wheel, the other parts of the coil form_a
complete double frame for carrying the crank-shaft and driving wheel, whilst the
seat is fastened on the top of the upper two parts of the coil, in proper position
having reference to the crank shaft and steering bar.
This frame possesses great strength for its weight, as it has no joint whatever in
it, being constructed of one length of tube, its form ensures an amount of elasticity
sufficient to permit of the abandonment of the various spring devices hitherto
largely employed for the purpose of neutralizing the rigidity of most other bicycle
frames.
Dated this 27th day of October 1890.
GEORGE HARCOURT.
R. R. GUBBINS.
COMPLETE SPECIFICATION.
Improvements in Frames for Bicycles, Tricycles, and other Vehicles
We, GEORGE HARCOURT, of 45 Essex Street, Strand, London, Wood Engraver,
and RICHARD RUSSELL GUBBINS, of Belvedere, in the County of Kent, Engineer,
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 our invention is to make a frame or body for bicycles, tricycles,
and other similar vehicles of a more suitable character for resisting the strains to
which such vehicles are exposed, and at a smaller expense of labour and material
than can be done by any of the methods of manufacture now in vogue in the
bicycle trade with which we are acquainted.
In order to make a bicycle frame in accordance with our design, it is only
necessary to procure a piece of straight tube of sufficient strength and length, this
is then heated so as to bend easily, and being filled with sand, as is customary in
bending tubes, is bent round in a coil of one turn and a half, so that both its ends
come out together, that is to say, on the same side of the coil.
The ends of the tube above mentioned are then properly set in the same plane
and are fitted with the usual pivotted attachments for securing them to the fork
CD 1

page_text: which carries the front or steering wheel, the other parts of the coil form a
complete double frame for carrying the crank shaft and driving wheel whilst the
seat is fastened on the top of the upper two parts of the coil in proper position
having reference to the crank shaft and steering bar.
This frame possesses great strength for its weight, as it has no joint whatever in
it, being constructed of one length of tube its form ensures an amount of elasticity
sufficient to perinit of the abandonment of the various spring devices hitherto
largely employed for the purpose of neutralizing the rigidity of most other bicycle
frames.
The annexed drawings show our invention A, A, as applied at Figure 1 to a
bicycle in single form, and at Figure 2 to a child's carriage in double or coupled
order on the same side.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed we declare that what we
claim is :-
A coiled tubular frame A, as described and substantially as shown on the
drawings for the purpose or purposes set forth.
The 7 day on way 1991.
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said George Harcourt and Richard Russell Gubbins.