Year: 1888

page_text: 1, ARTHUR JOHN ENTWISLE of the firm of Thomas_Entwisle and Son, Atlas.
Foundry, Bolton in the County of Lancaster, Engineers and Machinists, do hereby
declare the nature of my said invention to be as follows:-
My invention relates to improvements in or applicable to steam heated drying
cylinders employed for drying woven fabrics and other purposes. The cylinders of
these machines are made of sheet copper or tinned sheet. iron, and my invention
consists in a novel method of securing the ends to the same in a convenient and
efficient manner to prevent leakages of steain or water during the operation of drying,
at the same time facilitating the removal and replacement of the same for the purpose
of repairs or otherwise.
In carrying out my invention the cylinder can be made perfectly straight from end
to end or otherwise as desired, and is fitted internally at each end with a split expansion
ring. The outer sides of these rings are turned to fit into the drying cylinder ends;
the inner sides being tapered to admit a bevel ring provided with screws which extend
through the metallic trunnion ends of the cylinder to the outside. The trunnion ends
are each provided with a dished end turned inside to the outer diameter of the drying
cylinder and fits thereon; the joints being made by expanding the split expansion
rings by means of the internal bevel rings operated by the screws from the outside..
The joint of the expansion ring can be formed in various ways, such as
angular, >, butt, lap, spigot and faucet, or in any other convenient manner to ensure.
the ends of the same maintaining their true relation to each other during expansion
and contraction.
EDMUND CHADWICK,
Agent for Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in or Applicable to Steam Heated Drying Cylinders.
I, ARTHUR JOHN ENTWISLE of the firm of Thomas Entwisle and Son, Atlas
Foundry, Bolton in the County of Lancaster, Engineers and Machinists, do hereby
declare the nature of my said invention 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 or applicable to steam heated drying
cylinders employed for drying woven fabrics and other purposes. The cylinders of
these machines are made of sheet copper, or tinned sheet iron, and my invention
consists in a novel method of. securing the ends to the same in a convenient and
efficient manner, to prevent leakages of steam or water during the operation of drying,
at the same time facilitating the removal and replacement of the same for the purpose.
of repairs or otherwise.
In carrying out my invention the cylinder can be made perfectly straight from end
to end or otherwise as desired, and is fitted internally at each end with a split expansion
ring. The outer sides of these rings are turned to fit into the drying cylinder ends;
the inner sides being tapered to admit a bevel ring provided with screws which extend
through the metallic trunnion ends of the cylinder to the outside. The trunnion ends
are each provided with á dished end turned inside to the outer diameter of the drying
cylinder and fits thereon; the joints being made by expanding the split expansion
rings by means of the internal bevel rings operated by the screws from the outside.
The joint of the expansion ring can be formed in various ways, such as, angular >,
butt, lap, spigot and faucet; or in any other convenient manner to ensure the ends
of the same maintaining their true relation to each other during expansion and
contraction.
Fig. 1 is a longitudinal sectional elevation of a drying cylinder with my improvements
applied Fig. 2 is a front view of a tapered expansion ring employed therein-Fig. 3
is a front view of an internal bevel ring for operating the expansion ring by means of
screws Fig. 4 is an enlarged section of a portion of the trunnion cylinder end with
the stationary tapered split expansion ring and the internal bevel ring for securing the
same against the end of the sheet-metal drying cylinder, and Fig. 5 is an enlarged
section of my improvements applied to a drying cylinder with the ends, slightly
tapered to facilitate fixing or removal.
A is the sheet metal drying cylinder; B the cylinder end with the dish C turned
inside to fit on the end of the cylinder A, which can be perfectly straight as in
Figs. 1 and 4, or slightly tapered as in Fig. 5. The cylinder end B is provided with
the trunnion D as usual. The end of the cylinder A is fitted internally with the
stationary split expansion ring E, which is turned on its periphery to the internal
diameter and form of the end of the same; the inner side being tapered to admit of
the movable bevel ring G, the latter being turned on its periphery to correspond with
the internal turned part of the stationary split expansion ring E. The stationary split

page_text: expansion ring E when fitted into the straight or slightly tapered end of the
cylinder A is stationary longitudinally, but can be expanded diametrically by the
movable bevel ring G. The ring G is drilled and tapped to receive the screws H,
which extend through the trunnion cylinder end B to the outside.
When the parts are put together as shown in the drawing and the screws H are
tightened the movable ring G is drawn towards the trunnion end B, which forces the
stationary split expansion ring E tightly against the internal end of the cylinder A,
by which the latter becomes firmly clamped between the periphery of the stationary
split expansion ring E and the internal part of the dish Con the trunnion end B.
Before the dish C on the trunnion cylinder end B is placed on the end of the
cylinder A-whether straight or taper-the latter is coated externally with white or
red lead putty or other suitable cement to assist in making a steam tight joint when it
is pressed tightly against the internal part of the dish C by the stationary tapered split
expansion ring E and the movable bevel ring G operated by the screws H. This
arrangement allows of the parts being quickly put together in steam tight manner,
and may be easily taken apart when repairs are necessary.
The joint of the stationary split expansion ring E can be formed in various ways as
shown in Figs. 6 to 10 inclusive, to ensure the ends of the same maintaining their
true relation to each other during expansion and contraction.
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 :-
In a drying cylinder with either straight or slightly tapered ends, making a steam
tight joint at the connection between the cylinder and the trunnion cylinder end, by
pressing the cylinder end A with an external coating of putty or other suitable cement
tightly against the inside of the dish C on the trunnion cylinder end B by means of
the stationary tapered split expansion ring E and the internal movable bevel ring G
operated by the screws H from the outside substantially as described and as shown on
the drawings.
Doted the 24th Ïanuary 1980
+