IMPROVEMENTS IN STEAM CYLINDERS FOR DRYING PURPOSES
Year: 1884

page_text: I ARTHUR ENTWISLE of the Atlas Foundry, Bolton, Lancashire Engineer do
hereby declare the nature of said Invention for IMPROVEMENTS IN STEAM CYLINDERS
FOR DRYING PURPOSES to be as follows:-
The object of my invention is to improve the construction of the steam heated
cylinders used for drying fabrics.
To effect this I employ the ordinary hollow trunnions or axle through which
steam is supplied to the casing of the cylinder by hollow arms and to which are
screwed bolted or otherwise connected flanges secured to one end of hollow arms
which I prefer to form of wrought iron or steel tubes; the other ends of these
hollow arms also have flanges secured to them which are connected in a similar
manner to a single plate (or plates) of steel or wrought iron of which I form the
inner shell of the cylinder: I secure an annular flanged ring near each edge of this
plate on the outer side and to the flanges of these rings I secure a second plate (or
plates) of steel or wrought iron leaving a steam space between the two plates.
The inner plate (or plates) has holes in it connecting all the hollow arms with
this space to which I admit steam through one or more of these arms, preferably
through two of them.
Steam passes from the space through one or more of these arms and out through
the opposite end of the hollow axle by which it was admitted, to a steam trap in
the usual or any convenient manner and is allowed to escape. The remainder of
the hollow arms are left open to the steam space for the purpose of equalizing the
expansion of the cylinder."
In place of securing the inner and outer shells of of the cylinder to the flanges of
an annular ring the shells may be fastened directly to one another or connected in
any convenient manner provided always that a steam joint is made.
By the use of my Invention, steam may be used at a higher pressure than in
drying cylinders of the ordinary construction.
Dated this 28th day of November 1884.
H. B. BARLOW,
Agent for Applicant,
17, St. Ann's Square, Manchester.

page_text: I ARTHUR ENTWISLE, of the Atlas Foundry, Bolton, Lancashire, Engineer, do
hereby declare the nature of said Invention for IMPROVEMENTS IN STEAM CYLINDERS
FOR DRYING PURPOSES, 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 my Invention is to improve the construction of the steam heated
cylinders used for drying fabrics.
To effect this I employ the ordinary hollow trunnions or axle through which
steam is supplied to the casing of the cylinder by hollow arms and to which are
screwed, bolted or otherwise connected flanges secured to one end of the hollow arms
which I prefer to form of wrought iron or steel tubes; the other ends of these
hollow arms also have flanges secured to them which are connected in a similar
manner to a single plate (or plates) of steel or wrought iron of which I form the
inner shell of the cylinder: I secure an annular flanged ring near each end of this
plate on the outer side and to the flanges of these rings I secure a second plate (or
plates) of steel or wrought iron leaving a steam space between the two plates.
The inner plate (or plates) has holes in it connecting all the hollow arms with
this space to which I admit steam through one or more of these arms, preferably
through two of them.
Steam passes from the space through one or more of these arms and out through
the opposite end of the hollow axle by which it was admitted to a steam trap in
The remainder
the usual or any convenient manner and is allowed to escape.
of the hollow arms are left open to the steam space for the purpose of equalizing
the expansion of the cylinder.
In place of securing the inner and outer shells of the cylinder to the flanges of an
annular ring the shells may be fastened directly to one another or connected in any
convenient manner provided always that a steam joint is made.
By the use of my Invention steam may be used at a higher pressure than in
drying cylinders of the ordinary construction.
And in order that my Invention may be fully understood and readily carried
into effect will describe the accompanying Sheet of Drawings, reference being had
to the figures and letters marked thereon.
Figure 1 is an end view. Fig. 2 a front sectional elevation of a drying cylinder
constructed according to my Invention. Figs. 3 and 4 are detailed views illus-
trating the construction of the casing of the cylinder and Fig. 5 is a sectional view
of part of the casing and the end. of the hollow trunnion showing the mode of
constructing the latter in order to permit the water of condensation to escape.
a is the hollow axle of the cylinder and a¹ the inlet for steam; b are the hollow
arms, preferably wrought iron or steel tubes, through any one or other number, say
two, of which steam is supplied to the casing of the cylinder; these hollow arms b
have flanges b' screwed or otherwise secured to them at the inner end and flanges b²
similarly secured at the outer ends, as shown clearly in Fig. 5. The flanges b' are
bolted to the hollow axle a, and the flanges 62 are bolted to flanges c¹ which are
secured to steel or wrought iron plates c. I prefer to form the inner shell of the

page_text: cylinder of three of these plates c and to connect the plates together in the manner
illustrated by the detailed views Figs. 3 and 4, the ends of two plates c being
brought together and both rivetted to a flat piece or bar d extending across the
whole width of the cylinder. The outer shell is composed in a similar manner
preferably of three plates e rivetted to a bar and the inner and outer shells cand e
are then connected and secured together by rivets g passing through their edges and
through the ends of the bars d and f as well as through the annular rings h so as to
leave a steam space between the two shells c and e. The annular rings h are cut
away or recessed to receive the ends of the bars of which are accurately fitted into
such recesses, see Figs. 3 and 4. The inner shell c has holes or perforations in it
connecting all the hollow arms b with the steam space and steam passes from the
space through one or more, in this case two, of the arms 6 and out of the hollow
axle at as to a steam trap in the usual manner.
In place of making each annular ring of the section shown, it may be formed
with flanges projecting outward to one of which flanges the outer shell, and to the
other, the inner shell, is rivetted or secured.
The cylinder may be strengthened by rivets or studs which pass through the
steam space and are secured to the inner and outer shell.
By securing the hollow arms 6 to the flanges c¹ in the manner shown and
described, the arms may be readily removed when required by releasing the bolts
which secure the flanges 6' to the axle a and those which secure the flanges b² to
the flanges c¹.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what
I claim is
1. The construction, combination, and arrangement of parts forming the improved
cylinder for drying purposes, substantially as herein set forth.
2. In a cylinder for drying purposes, the method of securing the hollow arms to
the inner shell and to the hollow axle by means of flanges, substantially in the
manner herein set forth for the purposes specified.
3. Constructing the inner and outer shells of a drying cylinder of steel or
wrought iron plates connected together and to hollow arms, substantially in the
manner herein shown and described, or in an equivalent manner, for the purpose
of enabling a higher pressure of steam to be employed than has hitherto been
possible.