Improvements in Ironing Machines.
Year: 1891

page_text: Date of Application, 5th Nov., 1091
Complete Specification Left, 4th Aug., 1892-Accepted, 10th Sept., 1892
PROVISIONAL SPECIFICATION.
Improvements in Ironing Machines.
I, JAMES BINGHAM ALLIOTT of Bloomsgrove Iron Works, Nottingham,
Engineer, do hereby declare the nature of this invention to be as follows:-
My invention has reference to ironing machines of the kind constructed with a
bed forming a steam jacketted trough having a polished interior that constitutes
the ironing surface over which the goods to be ironed are made to move.
When such a machine is used for drying goods as well as for ironing them and
when consequently the goods passing over the surface of the trough are very wet
and cold the interior of the trough is suddenly cooled and contracted.
It has been usual to make the jacketted trough of cast iron in a single piece
and to cast the ends where the interior and the jacket have been connected
almost solid leaving only such openings as needed to withdraw the core, and to
continue the core up to the end of the trough of the same thickness as all along
the length of the trough.
Thus a very rigid connection has been formed at the ends between the internal
trough and the external jacket, and it has been found that in some cases, the
continual contraction and expansion of the internal trough due to its being alter-
nately cooled by contact with heavy cold and very wet goods and again heated as
the goods have become warmed and dried while the external jacket has remained
practically of one temperature and length eventual rupture of the metal has been
caused close to the point of rigid attachment.
my
Now with the view of obviating this in such a machine according to invention
the ends of the bed are left partially open throughout as much as possible of the
space between the internal trough and the external jacket so that they are only
rigidly connected at or near the edges of the trough, and the spaces thus left open
are closed by means of thin and comparatively flexible plates (preferably of
wrought iron) suitably held in position either by long bolts passing from end
to end of the bed, or by bolts attaching them to the inner trough and the outer
jacket of the bed.
In some cases instead of leaving the ends of the bed open, I greatly enlarge the
space between the jacket and the trough, near the ends, and thus obtain a longer
connection between the two, such longer connection being made of sufficient length
to have elasticity enough to take up the variations of length due to changes of
temperature without putting undue strain upon the metal.
Dated this 4th day of November 1891.
W. LLOYD WISE,
Per F. J. Brougham,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Ironing Machines.
1, JAMES BINGHAM ALLIOTT of Bloomsgrove Iron Works, Nottingham,
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 :-
My invention has reference to ironing machines of the kind constructed with a
bed forming a steam jacketted trough having a polished interior that constitutes
the ironing surface over which the goods to be ironed are made to move.
When such a machine is used for drying goods as well as for ironing them and

page_text: when consequently the goods passing over the surface of the trough are very wet
and cold the interior of the trough is suddenly cooled and contracted.
It has been usual to make the jacketted trough of cast iron in a single piece
and to cast the ends where the interior and the jacket have been connected almost
solid leaving only such openings as needed to withdraw the core, and to continue
the core up to the end of the trough of the same thickness as all along the length of
the trough.
Thus a very rigid connection has been formed at the ends between the internal
trough and the external jacket, and it has been found that in some cases, the
continual contraction and expansion of the internal trough due to its being alter-
nately cooled by contact with heavy cold and very wet goods and again heated as
the goods have become warmed and dried while the external jacket has remained
practically of one temperature and length eventual rupture of the metal has been
caused close to the point of rigid attachment.
Now with the view of obviating this, in such a machine according to my invention
the ends of the bed are left partially open throughout as much as possible of the
space between the internal trough and the external jacket so that they are only
rigidly connected at or near the edges of the trough, and the spaces thus left
are closed by means of thin and comparatively flexible plates (preferably of
wrought iron) suitably held in position either by long bolts passing from end to
end of the bed, or by bolts attaching them to the inner trough and the outer
jacket of the bed.
In the accompanying illustrative drawings,
Fig. 1 is a longitudinal section of part of the bed of an ironing machine thus
constructed, and
Fig. 2 is an end view thereof.
1 is the internal trough and 2 the external jacket forming together the jacketted
bed of the ironing machine. 3 is one of the end walls connecting the trough and
jacket and in which is formed a long slot or opening 4 closed by a thin and
comparatively flexible metal plate 5. This plate in the example shown is held in
place by bolts 6 the heads of which bear against the inner side of the end wall 3.
In some cases instead of leaving the ends of the bed open as above described 1
greatly enlarge the space between the jacket and the trough, near the ends, and
thus obtain a longer connection between the two, such longer connection being
made of sufficient length to have elasticity enough to take up the variations of
length due to changes of temperature without putting undue strain upon the metal.
This construction is illustrated in longitudinal section and end elevation in Figs. 3
and 4 respectively where it will be seen that the end portion 2 of the jacket 2 is
made of an outwardly curved or bulged form before it meets with the end 3 of the
bed which in this case may be unperforated, and be made either flat as shown in
full lines in Fig. 3, or of bulged or curved form as shown in dotted lines at 3*.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. In an ironing machine of the kind hereinabove referred to, a combined
internal trough and external jacket constructed with end openings such as 4 and with
thin and comparatively flexible closing plates such as 5 secured in place substantially
as described with reference to Figs. 1 and 2 of the accompanying drawings for the
purpose set forth.
2. The modification of my invention hereinabove described with reference to
Figs. 3 and 4 of the drawings.
JAMES B. ALLIOTT.
W. Lloyd Wise,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.