Improved Flexible Non-conducting Covering for Boilers, Steam Pipes and the like.
Year: 1898

page_text: Date of Application, 2nd Feb., 1898-Accepted, 4th June, 1898
Improved Flexible Non-conducting Covering for Boilers, Steam
Pipes and the like.
A communication by THORBJORN WAAGE, of No. 27, Nedre Strandgade, Stavanger,
Norway, Merchant.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E., of the Agency for Foreign
Patent Solicitors, 6, Lord Street, Liverpool, and 6, Bank Street, Manchester, both
in the County of Lancaster, 118, New Street, Birmingham, in the County of
Warwick, and 322, High Holborn, in the County of, Middlesex, Civil 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:-
The object of this invention is to procure an insulating covering for boilers,
steam pipes and the like in the form of flexible plates of various dimensions
manufactured of infusorial earth or other loose, pulverulent material.
These plates are formed as a sort of mattresses which may easily be placed on
curved surfaces. They are constructed substantially in the following way:-The
pulverulent material is filled in hoses A made of jute, asbestos or the like. These
hoses are then cut up in shorter pieces, the ends of which are shut up by means of
a seam or in any other suitable way. The hosepieces A thus obtained, the length
of which is made suitable for the purpose for which the covering is designed, may
now be sent through rollers or compressed in a press in order to obtain a more
square cross-section, as shown in Figure 2. Then the hose-pieces are placed
side by side so as to form a plate of suitable dimensions. The hosepieces A are
then put together by aid of wires B which are put through the whole row, and the
ends of which are bent or otherwise fastened. In order to increase the coherence of
the mattresses a cement or glue may be applied between the hosepieces or cross
seams may be made for the purpose.
When the mattress has been thus put together it may be sent through rolls,
and in this way may receive an almost completely plain surface. The use of
such packing mattresses simplifies in a very high degree the work of covering steam
tubes and boilers, and by the use of the same a smaller part of the covering may
be easily removed if this should prove necessary. The mattresses being pliable
in all directions and easily fastened to each other by aid of wire B or in other
suitable manner, the covering may be completed in a very short time.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, as communicated to me by
my foreign correspondent, I declare that what I claim is:-
A non-conducting covering for boilers, steampipes and the like, consisting of
mattresses containing infusorial earth or other suitable pulverulent material,
said mattresses being made up of lengths of hose of some suitable fibrous material

page_text: filled with the said pulverulent matter and afterwards laid side by side and united
by means of wires inserted crosswise through the whole row and fastened at the
ends, or by means of cross-seams, cement or glue being eventually applied between
each of the hose lengths, substantially as hereinbefore described.
Dated this 1st day of February 1898.
WM. P. THOMPSON & Co.,
Agents.