An Improved Non-conducting Covering for Pipes and Cylinders.
Year: 1894

page_text: Date of Application, 24th Mar., 1894-Accepted, 28th Apr., 1894
COMPLETE SPECIFICATION.
An Improved Non-conducting Covering for Pipes and Cylinders.
I, JULIUS JUSTUS, of Kandlstrasse, Hanover in the Empire of Germany,.
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 :-
This invention relates to improvements in coverings for steam and other pipes
and cylinders and consists in a coating for the said articles to prevent the radiation..
conduction or transmission of heat.
Usually the transmission of heat from steam and other pipes is prevented by
coating the exterior surfaces of the same with loam, or clay, sometimes intermixed
with fibrous or hairy substances, or the said pipes are covered or surrounded with
felt or composition of fossil meal with loam, clay etc.
In most, if not in all cases, the said coverings or coatings, come into intimate-
contact with the whole of the outer surfaces of the walls of the tubes or articles
hence a large amount of conducting surface of the cover is exposed.
Although the coverings or coatings generally employed are bad conductors of
heat, yet a very large amount of heat is allowed to escape by conduction, in
consequence of the whole of the coating surface being in contact with the article
protected.
Such ordinary coatings are apt to be ruptured split or cracked up owing to
their expansion and contraction varying from that of the walls of the body
surrounded.
Now my invention consists in making plates which have an undulating section
and the material is a composition of fossil meal and loam, clay, lime etc. and between.
these substances threads or weavings come. These materials together with the-
corrugated form represented give the said plates the necessary flexibility and.
elasticity and makes it possible to put the same around a pipe of small diameter.
By the undulating form of the plates the points of contact of the covering with
the article covered are minimised.
Besides minimising the points of contact of the coating air spaces are left
between the points of contact.
By making the walls of the covering undulatory and of these materials the same
admit of expanding sub rata with the article encased or surrounded.
Figure 1 of the accompanying drawings represents a transverse vertical section.
of such an undulatory plate P with threads or weavings g.
In Figure 2 the parts b and are plain.
In Figure 3 the plate P is plain in the part p and pointed in the part t. If the
section of a plate has this form in two right-angled sections, it is a plain plate with
out-pressed points.
P and p¹ are.
Figure 4 represents a pipe a, covered by a plate P. The two ends
lying together and the joints f between both is covered with composition m.
Figure 5 shows how the plates P are made for vessels and boilers.
Figure 6 is a plate P of the form Figure 2 covering a pipe a. There are little.
points 62 under the parts 6' which prevent, the whole flat 6' touching the pipe a.

page_text: 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 :-
Plates or lengths for covering pipes, cylinders and other hollow vessels, made of
threads or weaving which are filled with a composition of fossil meal and loam,
clay, lime etc. and which are to roll up.
Dated this 15th day of March 1894
JULIUS JUSTUS.