Improvements in Frames of Velocipedes.
Year: 1898

page_text: Date of Application, 3rd Mar., 1898-Accepted, 14th May, 1898
COMPLETE SPECIFICATION.
Improvements in Frames of Velocipedes.
I, WILLIAM THOMAS WILSON, of 12, The Colonnade, Eastbourne, in the County
of Sussex, Cycle Manufacturer, do hereby declare the nature of this invention and
in what manner the same is to be performed to be particularly described and ascer-
tained in and by the following statement:
This invention relates to the diamond shaped frames now generally used for rear
driving safety bicycles and it consists in so shaping the top of the diagonal member
and supporting the seat pillar as to enable long articles such as guns, fishing rods,
golf clubs to be carried centrally under the top member of the frame.
In the accompanying drawing which illustrates-by way of example--one
method of carrying this invention into practical effect:
Figure 1 is a view in side elevation of a bicycle embodying the invention.
Figures 2 and 3 are broken views in side and rear elevation respectively—on an
enlarged scale showing the essential features of the invention.
Figure 4 is a view in section on line a a Figure 3, and
Figure 5 is a view in section on lines y y Figures 2 and 4.
Throughout the views similar parts are marked with like letters of reference.
The upper end A of the diagonal member A¹ of the frame is set off to the right
or left either by constructing it of an independent piece of tube carried by a bracket
or lug a on the top of the main part of the diagonal as shown most clearly by
Figure 3 or by cranking or curving the diagonal. The upper part A of the diagonal
carries a bracket or lug a' adapted to receive both the top member A2 of the frame
and the members A3 A3 of the upper back fork which may be attached to the said
bracket or lug either permanently as shown or by means of transverse bolts as is
now sometimes done. The seat pillar B is mounted in the upper part A of the
diagonal and in order to bring its horizontal part B which carries the saddle central
with the machine the said part is carried by a bracket or lug b fixed to the upper
end of the pillar B.
The pillar B is fixed at any desired height in the upper part A of the diagonal
member of the frame by means of a gripping piece C acting transversely and
operated by a wedge-shaped piece C¹ fitting in the end of the top member A2 of the
frame and drawn up by means of a screw D the head of which acts against a
washer & bearing against the bracket or lug a¹.
It will be seen that by this construction a central space is left at the junction of
the diagonal member the top member and the members of the upper back fork
thereby enabling long articles such as guns, fishing rods, golf clubs to be carried
centrally under the top member of the frame as shown by Figure 1. The articles
may be suspended from or otherwise fixed to the top member of the frame by any
suitable clips or the like but this forms no part of this invention.
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:-
(1) In diamond shaned frames for rear driving safety bicycles setting off or

page_text: cranking the diagonal substantially as herein described and for the purpose
specified.
(2) In a bicycle frame setting off or cranking the upper end of the diagonal
member and so shaping the seat pillar that although the vertical part thereof is
mounted in the set off upper part of the diagonal its horizontal part lies central
with the frame of the machine, as and for the purpose set forth.
(3) In a bicycle frame the combination of a diagonal member having its upper
end set off or cranked out of centre, of a seat pillar adapted to be mounted in the
said upper end of the diagonal, and of a bracket or lug for receiving both the top
member of the frame and the upper ends of the upper back fork, as and for the
purpose set forth.
(4) In a bicycle frame the combination of a diagonal member having its upper
end set off or cranked out of centre, of a seat pillar adapted to me mounted in the
said upper end of the diagonal, of a gripping piece fitting in a recess in the bracket
or lug which receives the top member of the frame and the upper ends of the upper
back fork, and of a wedge piece adapted to be operated by a screw to act on the
gripping piece and cause it to grip the seat pillar in the upper end of the diagonal,
as set forth.
ROBERT E. PHILLIPS, Assoc. M. Inst. C.E., M.I. Mech. E.,
Consulting Engineer and Patent Agent,
70, Chancery Lane, London, W.C., Agent for the Applicant.