Improvements in or relating to the Production of Designs on Tubes and the like.
Year: 1896

page_text: Date of Application, 14th Nov., 1890
Complete Specification Left, 16th Aug., 1897-Accepted, 18th Sept., 1897
Complete Specification Left, 16th Aug., 1897-Accepted, 18th Sept., 1897
PROVISIONAL SPECIFICATION.
Improvements in or relating to the Production of Designs on Tubes
and the like.
I, PHILIP LOUIS RENOUF of 26 York Road, Edgbaston, Birmingham, in the
County of Warwick, Engineer, do hereby declare the nature of this invention
to be as follows:-
This invention relates to the production of designs or markings on tubes such
as are used in the construction of cycles, and on other articles having similar
curved surfaces, the principal object of this invention being the production of an
embossed label or record on cycle frames in intaglio or in relief in place of the
transfer hitherto usually adopted.
According to this invention a mould, divided where necessary, is made to
receive the article upon which the record say the name of the maker of the
machine, is to be produced and upon the interior surface of the mould the design
is formed in relief or in intaglio. The article to be treated is placed in this mould
and fluid under pressure is applied to the interior of the article to force it to expand
into or around the design in the mould, so that a reverse of whatever design the
mould contains appears upon the moulded article.
Lugs and bolts or other locking or clamping devices are provided to keep the
portions of the mould together when the fluid pressure is applied to its interior.
Upon the mould are fittings whereby the fluid under pressure can be introduced
to the interior of the article; or the fittings may be applied to the article itself.
Dated this 14th day of November 1896.
BOULT & WADE,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in or relating to the Production of Designs on Tubes
and the like.
I, PHILIP LOUIS RENOUF, of 26 York Road, Edgbaston, Birmingham, in the
County of Warwick, 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:-
This invention relates to the production of designs or markings on tubes such
as are used in the construction of cvcles, and on other articles having similar

page_text: curved surfaces, the principal object of this invention being the production of an
embossed label or record on cycle frames in intaglio or in relief in place of the
transfer hitherto usually adopted.
According to this invention a mould, divided where necessary, is made to
receive the article upon which the record say the name of the maker of the
machine, is to be produced and upon the interior surface of the mould the design
is formed in relief or in intaglio. The article to be treated is placed in this mould
and fluid under pressure is applied to the interior of the article to force it to expand
into or around the design in the mould, so that a reverse of whatever design the
mould contains appears upon the moulded article.
Lugs and bolts or other locking or clamping devices are provided to keep the
portions of the mould together when the fluid pressure is applied to its interior.
Upon the mould are fittings whereby the fluid under pressure can be introduced
to the interior of the article; or the fittings may be applied to the article itself.
The accompanying drawings illustrate one form of apparatus for the production
of the designs or markings; of these drawings,
Fig. 1 is a longitudinal section on the line 1-1 of Fig. 2 and,
Fig. 2 is an end view of the apparatus shown in Fig. 1.
The apparatus shown by way of illustration is of a form suitable for the treat-
ment of tubes, such as are used in the manufacture of cycles, and in both figures
like letters of reference indicate like parts.
A
The tube to be marked is shown at A its two ends being both closed in any
suitable manner by plugs or stoppers capable of resisting a high pressure.
convenient form of stopper is shown in the drawings where a closely fitting plug B
of some compressible material such as rubber is tightly clamped between conical
washers C2 held between the head C¹ of a rod C and a nut C3 threaded on the
rod C. A die D, made in two, as shown, or more parts is placed in position
outside the tube and so as to entirely embrace its circumference for preferably the
entire length of the tube. The parts of the die are strongly clamped together in
any convenient manner, such as by lugs formed on the exterior of the parts which
may be secured together by bolts, or by metal straps or clamps which embrace
and firmly hold the parts together, or by a solid block of metal as shown at E, a
hole to correspond with external dimensions and conformation of the parts of the
die being formed in the block E, into wnich the die D with the tube A enclosed
can be slipped and so held against the expansive force thereafter to be applied.
On the internal surface of one or more parts of the die D is the mark or device in
relief or intaglio which it is desired to produce upon the tube in intaglio or relief
respectively. Portions of such a device cut in intaglio in the die, suited to pro-
duce an impression in relief upon the tube are indicated at D1 and D2, the
limensions of depth of these recesses being somewhat exaggerated in the drawing
for the sake of clearness. In practice the depth to which the pattern or letters
are cut or raised on the surface of the die D would be regulated by the material
of which the tube or other article to be marked is formed, and its thickness.
When the parts are in the relative positions described above, fluid under pressure
is applied to the interior of the tube A by any suitable inlet, such as may be
conveniently afforded by a perforation C in the rod C. Under sufficient pressure
the tube A expands into the recesses D1, D2 or around the raised device when it
is formed in relief on the die, and, the pressure having been removed, the case E
or clamping devices employed may be removed and parts of the die D taken apart.
A device such as a trade mark, or the name of the maker formed thus upon a part
or parts of a manufactured article has the advantage over the usual transfer, such
as is used upon cycles, of non-transferability and practical indelibility.
It is obvious that I may vary the clamping devices for the mould or the plugging
device for the article to be embossed, or the form of the mould without departing
from the spirit of this invention and, although hydraulic pressure will usually be
found most suitable, I may employ any other fluid under pressure such as air or
steam where preferred.

page_text: Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:-
1. Producing a name plate or equivalent device upon a tubular part of a cycle
or the like by pressing some of the material of which the part is composed out
wards from the inside so as to leave the device in relief or intaglio on the exterior
of the part.
2. Producing a device comprising letters or other marking in intaglio or relief
in the substance of a tubular or similar article by the direct application of
hydraulic pressure to the interior of the article.
3. Producing a lettered or other device in relief or intaglio in the substance of
a tube formin part of a cycle or similar vehicle for purposes of identification.
Dated this 16th day of August 1897.
BOULT & WADE,
Agents for the Applicant.