Improvements in Elastic Sheets or Tubing.
Year: 1889

page_text: Date of Application, 19th Aug., 1889
Complete Specification Left, 19th May, 1890-Accepted, 12th July, 1890
PROVISIONAL SPECIFICATION.
Improvements in Elastic Sheets or Tubing.
We LEWIS WALKER LEEDS of 38 Old Jewry in the City of London Engineer and
PHILIP SYNG JUSTICE of 55 Chancery Lane in the County of Middlesex, Merchant,
do hereby declare the nature of this invention to be as follows:-
This invention relates more particularly to the production of gas and liquid tight
tubes of elastic material but the invention is applicable to sheet material.
The nature of the invention briefly stated may be said to consist in the application
of an elastic coating to the tube or sheet while the latter is in an expanded
condition.
By experiment we judge that rubber or other elastic tubes may be expanded by
air. under considerable pressure and while in their expanded condition soluble rubber,
elastic varnish, or other suitable material be applied to the internal or external
surface thereof or in lieu of expanding with air the coating material may be forced
into the tube under sufficient pressure to expand it to the desired degree the pressure
being subsequently removed and the excess material run from the tube which we may
then internally polish by forcing through one or more shuttles or marbles and
subsequently dry by heated air or by other means.
We judge that it will be preferable to keep the tubing heated while applying the
coating and this may be done by placing it in a hot air or other chamber or receptacle.
It is evident that the coating may be externally applied if so desired and that it may
be also applied to one or both sides of sheet material.
The object in expanding or stretching the material before applying the coating is to
open all interstices, pores, air holes, and the like more fully than they would be when
the material was in ordinary use thus enabling the elastic coating to fully cover and
protect the surface when in its normal state of tension or expansion.
Dated this 19th day of August 1880
PHILIP M. JUSTICE,
55 & 56, Chancery Lane, London, Applicants' Agent.
COMPLETE SPECIFICATION.
Improvements in Elastic Sheets or Tubing.
We, LEWIS WALKER LEEDS of 38 Old Jewry in the City of London, Engineer, and
PHILIP SYNG JUSTICE of 55 Chancery Lane in the County of Middlesex, Merchant,
do hereby declare the nature of this invention and in what manner the same is to
be perforined, to be particularly described and ascertained in and by the following
statement:
This invention relates more particularly to the production of gas and liquid tight
tubes of elastic material, but the invention is applicable to sheet material.
The nature of the invention briefly stated may be said to consist in the application
of an elastic coating to the tube or sheet while the latter is in an expanded
condition.
We propose that rubber or other elastic tubes be expanded by air under considerable
pressure and while in their expanded condition to apply soluble rubber, elastic varnish,
or other suitable material to the internal or external surface thereof, or in lieu of
expanding with air the coating material may be forced into the tube under sufficient
pressure to expand it to the desired degree, the pressure being subsequently removed
and the excess material run from the tube which we may then internally polish by
forcing through one or more shuttles or marbles and subsequently dry by heated air

page_text: or by other means. We prefer to keep the tubing heated while applying the coating,
and this may be done by placing it in a hot air or other chamber or receptacle. It is
evident that the coating may be externally applied if so desired, and that it may be
also applied to one or both sides of sheet material, the same being first expanded.
The object in expanding or stretching the material before applying the coating is to
open all interstices, pores, air holes, and the like more fully than they will be when
the material is in ordinary use thus enabling the elastic coating to fully cover and
protect the surface when in its normal state of tension or expansion.
• Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is:-
The improvements in elastic sheets or tubing which consists in first expanding the
material and then applying an elastic coating thereto, substantially as described.
Dated this 19th day of May 1890.
PHILIP M. JUSTICE,
55 & 56, Chancery Lane, London, Agent for the Applicants.