Improvements in the Construction of Bicycles and other analogous Vehicles.
Year: 1896

page_text: Date of Application, 23rd Nov., 1896
Complete Specification Left 23rd Sent 1807 Mocanted 2nd at
1005
PROVISIONAL SPECIFICATION.
Improvements in the Construction of Bicycles and other analogous
Vehicles.
I; JOIN GEORGE INSHAW of Aston Manor Engineering Works, Cheston Road
Nechells Birmingham in the County of Warwick Engineer do hereby declare the
nature of this invention to be as follows:-
My Invention relates to the construction of bicycles and other analogous vehicles
having tubular frames which are connected to their fittings or connecting pieces
without brazing by forcing the metal of the tubes outwards from the inside into
retaining recesses in or over or under the parts of the fittings to which the tubes
are to be attached by means of expanding discs which remain in the tubes to act
as supports and strengthening devices. In those portions of the frame where there
must be a clear way through the tube for a bar tube or rod to pass through such as
the tube for the steering post and the tube for the saddle pillar I bulge the tube
through which the post or pillar or other bar tube or rod passes at the part where
the junction is made and I draw the tube through two or more holes in the lugs
and then rivet over the outside. This is most important in the case of the saddle
pillar lug which has to be divided so as to be capable of being released and
tightened for adjusting the saddle. I extend the screw by which the expanding
discs or their equivalent at the joint are expanded so that it passes through the
aforesaid bulged part and I screw a nut on this extended part of the screw to firmly
secure the parts together.
Dated this 23rd day of November 1896
JOHNSONS & WILLCOX,
47 Lincoln's Inn Fields, London, W.C., Agents
COMPLETE SPECIFICATION.
Improvements in the Construction of Bicycles and other analogous
Vehicles.
I, JOHN GEORGE INSHAW of Aston Manor Engineering Works, Cheston Road
Nechells Birmingham in the County of Warwick Engineer da 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:-
My Invention relates to the construction of bicycles and other analogous
vehicles having tubular frames which are connected to their. fittings, or connecting
pieces, without brazing, preferably by forcing the metal of the tubes outwards
from the inside into retaining recesses in, or over, or under, the parts of the fittings
гр.

page_text: to which the tubes are to be attached, by means of expanding discs which remain
in the tubes to act as supports and strengthening devices. In those portions of the
frame where there must be a clear way through the tube for a bar, tube, or rod, to
pass through such as the tube for the steering post and the tube for the saddle
pillar, I bulge the tube, through which the post, or pillar, or other bar, tube, or
rod, passes, at the part where the junction is made. I also draw, or force, the metal
of the said tube through two, or more, holes in the lug, or boss, and then rivet,
over the outside, the metal so drawn, or forced, through. This is most important
where the parts have to be divided so as to be capable of being released and
tightened for adjusting the saddle. I extend the screw, by which the expanding
discs, or their equivalent, at the joint, are expanded, so that the said extended part
of the screw passes through the aforesaid bulged part, and I screw a nut on this
extended part of the screw to firmly secure the parts together.
The accompanying drawing represents in vertical section the application of my
invention to the saddle pillar tube and lug, or boss, and a tube in connection
therewith, from which its application to analogous cases, such in the case of the
steering post tube, will also be understood.
The tube A through which the saddle pillar passes is bulged at the part a which
is opposite the branch 6 of the lug, or boss, B, into which branch the tube C,
which is to be secured to the lug, or boss, B, enters; which securing is shewn as
being done by means of expanding discs, as described in the Specification of my
application for Letters Patent No. 23045 of 1896, the bulged part a, having a hole
in it for the passage of the screw of the discs and of the tool by which the said
screw is operated, and the discs expanded, the said tool engaging with the head d
of the screw as described in my said specification. The said screw is extended
beyond the head d, the extension d' passing through the hole in the bulged part a,
and being screwed to receive a nut &, a washer d³, being used of proper shape to
fit against the bulged part a, on the one side, and the nut 2, on the other side.
The part A is secured to the part B by making holes in each (that in the part A
being less than that in the part B) and drawing the metal around the whole in the
part A through the hole B and then rivetting it over outside somewhat like an
eyelet, is fastened, as shewn at x. Any number of such pairs of holes may be used
at different parts. The pair of holes, (or one of the pairs of holes if more than one
pair be used) thus made in the parts A and B, is opposite the screw by which the
discs are expanded so as to allow of the inserting of the tool, or tools, for expand-
ing the discs, and for afterwards screwing on the nut d. The bulging of the
part a and the forcing of the metal around the hole in the part A through the hole
in the part B, as at 2, may be effected by placing inside the tube a piece of the
requisite size and shape and then drawing it outwards by a screw inserted from the
outside and screwed into the piece so inserted, which is of such a shape that it will
force out the metal and not turn with the screw. When the displacement of the
metal is thus effected the screw and piece inserted are removed. The parts at e
and may be engaged by forcing the metal of the part A. into the grooves in the
part B by means of the expanding discs and afterwards removing the discs.
Having now particularly described and ascertained the nature of this
invention and in what manner the same is to be performed, I declare that what
I claim is:
1. The securing of parts of bicycles, or other analogous vehicles, together so as
to leave a free passage for a post, pillar, or the like, by bulging a part, as at a,
and passing an extension of the disc expanding screw through an opening in the
bulged part and securing it by a nut.
2. The securing of parts of bicycles, or other analogous vehicles, together so as
to leave a free passage for a post, pillar, or the like, by forcing the metal of the
inner part, such as A, through a hole, or holes, in the outer part, such as B, and
rivetting it over, substantially as herein before described.
3. The securing of parts of bicycles, or other analogous vehicles, together so as

page_text: to leave a free passage for a post, pillar, or the like, in the manner herein before
described and shewn in the accompanying drawing.
Dated this 23rd day of September 1897.
JOHNSONS & WILLCOX,
47 Lincoln's Inn Fields, London, W.C., Agents