Improved Means for Effecting the Securing of Cycle Tubes in Lugs or other Fittings without Soldering.
Year: 1896

page_text: Date of Application, 17th Oct., 1896
Complete Specification Left, 11th Nov., 1996-Accepted, 6th Feb., 1897
PROVISIONAL SPECIFICATION.
Improved Means for Effecting the Securing of Cycle Tubes in Lugs
or other Fittings without Soldering.
I, JOHN GEORGE INSHAW of Aston Manor Engineering Works, Cheston Road
Nechells Birmingham in the County of Warwick, Mechanical Engineer, do hereby
declare the nature of this invention to be as follows:-
According to my invention I effect the securing of cycle tubes in lugs or other
fittings by means of expansible discs (or their equivalents) provided with a screw
spindle which discs are placed inside the tubes to be secured and then are
expanded or increased in diameter, which can be effected by securing or tightening
the spindle by means a key or spanner inserted through a hole provided for the
purpose in the lug or fitting so that the discs force the metal of the tube outwards
and into corrugations or recesses inside or at either side of the lug or fitting so.
that the tube is firmly secured in place. When the discs have been thus expanded
the key or spanner is removed and the discs remain in place and the tube is
effectually secured in the lug or fitting.
Dated this 16th day of October 1896.
JOHNSONS & WILLCOX,
Agents.
Improved Means for Effecting the Securing of Cycle Tubes in Lugs
or other Fittings without Soldering.
1, JOHN GEORGE INSHAW, of Aston Manor Engineering Works, Cheston Road,
Nechells Birmingham in the County of Warwick, England Mechanical 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 :-
According to my invention I effect the securing of cycle tubes in lugs or other
fittings by means of expansible discs (or their equivalents) provided with a screw
spindle which discs are placed inside the tubes to be secured and then are
expanded or increased in diameter which can be effected by screwing or tightening
the spindle by means of a key or spanner inserted through a hole provided for the
purpose in the lug, or fitting so that the discs force the metal of the tube outwards
and into corrugations or recesses inside, or at either side of the lug, or fitting so
that the tube is firmly secured in place. When the discs have been thus expanded
the key or spanner is removed and the discs remain in place and the tube is
effectually secured in the lug or fitting.

page_text: And in order that my invention may be fully understood I shall now proceed to
describe the same, and for that purpose shall refer to the several figures on the
annexed sheet of drawings, the same letters of reference indicating corresponding
parts in all the figures.
Figures 1 and 2 are vertical sections illustrating the invention as applied to the
fixing of a tube in what is known as the ball-head of a bicycle. A is the ball-
head and B is the tube to be fixed therein. In the lug a of the ball-head are
formed corrugations or recesses a². Inside the tube B before it is put in place
I insert the device for effecting the fixing and retaining of the tube. The parts of
this device are shewn separately at Figure 3. It consists of two discs C C³ with the
edges slit so that they will spread outwards when pressure is brought upon them.
Between the two discs there is a collar or distance piece, or there are collars or
distance pieces d d. The hole through the disc C is plain, and that in the other
disc C is screwed, and in it a screw E works. In the ball-head A is a hole a³
through which the key F is inserted to engage with the head of the screw as shewn
in Figure 1, which represents the securing device in the position in which it is
first inserted before the discs are expanded. By working the screw E, by means of
the key F, the central parts of the discs C C are forced towards each other and
the distance piece or pieces (d d2) causes or cause the edges of the discs to move
outwards and force the material of the tube B into the recesses a² as shewn in
Figure 2, and the tube B is thereby securely fixed in the ball-head A. and the
key F is withdrawn, the discs C C and parts connected therewith remaining in
place and ensuring the maintenance of a tight joint. Figures 4 and 5 are vertical
sections shewing the application of the invention to the fixing of the forks in the
crown plates G. The part of the fork shewn is marked H. The other parts
which correspond with those shewn in Figures 1, 2 and 3 are marked with the
same letters of reference, the "discs" or the equivalents and distance pieces being
shaped to correspond with the interior of the part H. The screw E engages
in a screw in the lower disc C2 and passes through a plain hole in the other
disc C (the collar e taking the place of the head of the screw in Figures 1, 2
and 3) and by working the screw the material of the tube is forced
outwards over and under the lower crown plate as shewn. The screw is
prolonged and screwed and the conical filling piece or plug I is forced into the
upper end of the part H by a screw nut e screwed on to this prolonged en 1 of the
screw, so as to force the top of the tube outwards over the upper crown plate as
shewn in Figure 5.
Similarly in all cases to which the invention is applicable, the device may be
used to secure tubes of cycles in their lugs or fittings, or parts in which they are
to be secured, holes where necessary being made to allow of the passage of a key
or spanner for operating the fastening device.
Having now particularly described and ascertained the nature of my inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. A device for securing cycle tubes in the lugs fittings or parts to which they
are to be secured, consisting of an expansible disc or discs or its or their equivalent,
provided with meaus for forcing them outwards to press the substance of the tube
into recesses, in, or over, or under, or both over and under, the parts to which
they are to be secured, substantially as herein before described.
2. In cycle tubes held in place by a disc or discs (or the equivalent) expanded
so as to press the material of the tubes outwards, suitable orifices being made to
allow of the insertion of a key, for effecting the expansion of the disc or discs or
the like substantially as hereinbefore described.
3. The combination of expausible discs or the like and distance pieces forming
abutments therefor, and a screw for forcing the central parts of the discs or the
like, together and their outer parts outwards, substantially as herein before
described and illustrated in the accompanying drawings.

page_text: 4. The combination of discs or their equivalents, distance pieces and screw with
a filling piece and nut at the top for securing the tubular forks or like parts of
cycles in the crown plates or parts to which they are to be affixed substantially as
hereinbefore described.
Dated this 7th day of November 1896.
JOHNSONS & WILLCOX,
47 Lincoln's Inn Fields, London, W.C., Agents.