Improvements relating to the Manufacture of Collapsable and other Metal Tubes and the like.
Year: 1890

page_text: Date of Application, 28th Feb., 1890
Complete Specification Left, 28th Nov., 1890-Accepted, 3rd Jan., 1891
PROVISIONAL SPECIFICATION.
Improvements relating to the Manufacture of Collapsable and other
Metal Tubes and the like.
I, HENRY CONRAD SANDERS, of Victoria Works, Victoria Gardens, Notting Hill
Gate, in the County of Middlesex, Collapsable Tube Manufacturer, do hereby
declare the nature of this invention to be as follows:-
My invention relates to the manufacture of collapsable and other metal tubes and
the like which are commonly formed from a metal blank by pressing the same in a
die by means of a suitable punch the metal passing up between the edges of the
die and of the punch and rising or flowing around the said punch the surface of
the tubes so formed being smooth and plain.
My said invention is chiefly designed to improve the appearance of such tubes by
forming on the surface thereof grooves or ridges or other suitably shaped projections
which may be either parallel with or inclined to the axis of the tube or the like or
may be caused to wind spirally around the said tube.
In carrying my said invention into practice I form upon the inner edge of the die in
which the metal is compressed, that is to say upon the edge at which the metal issues
from the die, a series of projections corresponding in number and arrangement with
the grooves which it is desired to form upon the said tube, the said projections being
replaced by short grooves or depressions where it is desired to form projections on the
tube produced.
By forming these short projections or grooves parallel with the longitudinal axis of
the die, the respective depressions or ridges will be parallel with the axis of the tube
produced while by causing them to be inclined thereto the depressions or ridges formed
on the tube will be inclined to the axis thereof or will form complete spirals around
the same according to the degree of inclination of the projections or grooves on the die.
The length of the aforesaid projections or grooves on the die although usually small
may be varied with advantage according to the amount of their inclination to the axis
of the die, being greatest in cases where there is most inclination.
It is obvious that my said invention may moreover be somewhat modified in carrying
the same into practice without departing from the nature thereof.
Dated this 28th day of February 1890.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements relating to the Manufacture of Collapsable and other
Metal Tubes and the like.
I, HENRY CONRAD SANDERS, of Victoria Works, Victoria Gardens, Notting Hill
Gate, in the County of Middlesex, Collapsable Tube Manufacturer, 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:-
My invention relates to the manufacture of collapsable and other metal tubes and
the like which are commonly formed from a metal blank by pressing the same in a
die by means of a suitable punch the metal passing up between the edges of the die
and of the punch and rising or flowing around the said punch the surface of the tubes
so formed being smooth and plain.
My said invention is chiefly designed to improve the appearance of such tubes by

page_text: forming on the surface thereof a number of longitudinal grooves or ridges or other
suitably shaped projections which may be either parallel with or inclined to the axis
of the tube or the like or may be caused to wind spirally around the said tube.
By my invention I am enabled to produce a collapsable tube which by reason of the
longitudinal projections or ridges thereon is considerably stronger and more rigid,
weight for weight, than collapsable tubes heretofore manufactured.
In the accompanying drawings,
Figures 1 and 2 represent vertical central sections of a die and punch such as I
use in the manufacture of my improved collapsable tubes.
Figures 3 and 4 are views showing the collapsable tubes provided with different
forms of ridges or projections as hereinafter described.
In carrying my said invention into practice I form upon the inner edge of the die A.
in which the metal is compressed, that is to say upon the edge at which the metal
issues from the die when the punch B is caused to act thereon, a series of recesses C
corresponding in number and arrangement with the longitudinal projections or ridges
which it is desired to form upon the said tube. By forming these short recesses or
grooves C parallel with the longitudinal axis of the die as shown in Figure 1, the
respective projections or ridges produced thereby upon the surface of the tube will
be formed longitudinally with respect thereto and will be parallel with the axis of the
said tube, while by causing them to be inclined as shown in Figure 2 the depressions
or ridges formed on the tube will be inclined to the axis thereof or will form complete
spirals around the same as shown in Figure 4 according to the degree of inclination
of the projections or grooves C on the die.
In some instances 1 form projections upon the inner face of the dio in place of or
in combination with the recesses C, which projections serve to form upon the
surface of the tube a series of depressions or grooves, as will be readily understood.
To facilitate the removal of the tube from the die, the said die is provided with
an axial perforation D preferably corresponding in diameter with the short neck
which it is desired to form on the collapsable tube. Into this perforation a plug
piece E is fitted before the insertion of the blank from which the tube is to be formed,
and after the action of the punch B the said plug piece is forced inward from the
bottom of the die thereby ejecting the collapsable tube.
The length of the aforesaid projections or grooves on the die, although usually small,
may be varied with advantage according to the amount of their inclination, to the
axis of the die the length being preferably greatest in cases where there is most
inclination.
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 :-
The manufacture of collapsable and other metal tubes and the like, having longi-
tudinal or spiral projections or depressions on the outer surface thereof, substantially
as hereinbefore described and for the purpose specified.
1
T
1000
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.