IMPROVEMENTS IN THE MANUFACTURE OF METAL TUBES
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
I, ARTHUR LATCH of 23 Great George Street Westminster in the County of
Middlesex Agent for Sir George Elliot do hereby declare the nature of my
invention for "IMPROVEMENTS IN THE MANUFACTURE OF METAL TUBES" to be as
follows-
My Invention relates to improvements in the manufacture of metal tubes by
twisting or combining a series of lengths strips or parts of metal of various sections
together in a similar manner and by similar means to that of forming or making
wire ropes, and my improvements consist in locking or holding together the lengths
strips or parts forming a metal tube with or without twisting and so that the parts
forming the outside of the tube continue on the outside of the entire length of the
tube and should any individual part be fractured it will still be retained in
position.
In some cases I make the transverse sections of the parts forming a metal tube
of this character so that they will interlock with one another and hold together
without twisting and in other cases the sections of the parts are such that they are
held together by twisting.
In each case the parts forming the outside of the tube continue on the outside of
its entire length and are by reason of their sectional combinations retained in
position should either of them break.
In order to render tubes of this character fluid and air tight they may be coated
inside or outside or both with any material that will exclude water or air.

page_text: COMPLETE SPECIFICATION.
I, ARTHUR LATCH of 23 Great George Street Westminster in the County of
Middlesex Agent for Sir George Elliot do hereby declare the nature of my
invention for "IMPROVEMENTS IN THE MANUFACTURE OF METAL TUBES" 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 improvements in the manufacture of metal tubes by
twisting or combining a series of lengths strips or parts of metal of various sections
by twisting the wires together in a machine of similar construction to that
ordinarily used for forming or making wire ropes (in this case however the
bobbins would be fixed) the sections of the wires being such that when so twisted 1
to form a flexible tube they will hold together without falling apart. Thus my
improvements consist in locking or holding together a series of lengths strips or
parts to form a flexible_metal_tube_by_twisting_so_that_the_parts_forming-the-
outside_of_the_flexible tubo.continue-on-the-outside-of-its-entire-length-and-should-
any individual part or strip be fractured it will still be retained in position owing 1
to the sectional combination of the parts.
I do not confine myself to any particular section but as examples I find it
advantageous to use wires or strips of the sections shown by Figures 1 and 2 of
tho-drawings-hereto-annexed-Figure-3-being-an-external-view-of-Figure 2.
In order to render flexible tubes of this character fluid and air tight they may be 2
coated inside or outside or both with any suitable material that will exclude water
Having
particularly descrivOU
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invention and in what manner the same is to be performed I declare that what
I claim is
The improved manufacture of flexible metal tubes by twisting together a series
of lengths strips or parts of metal of various sections in a similar manner and by
similar means to that of forming or making wire ropes (but in this case the bobbins
would be fixed) the section of each length strip or part forming the outside of the
tube being such that should any individual part be fractured it will still be retained
in position substantially as herein before fully described and illustrated by the
drawings hereto annexed.