Year: 1888

page_text: I, FERNAND DEHAÎTRE of 1 Boulevard St. Denis, Paris, France, Manufacturing
Engineer, do hereby declare the nature of. this invention to be as follows:-
This invention consists in the construction of a continuous hot press for pressing
and finishing fabrics and the characteristic features of the improved apparatus are
that an endless apron or length of felt or other material carries the fabric through the
pressing appliances, and that hydraulic pistons specially arranged support the lower
pressing appliance which is movablo vertically whereby a very uniform pressure
throughout the width of the fabric is exerted.
The machine is principally composed of two strong side frames to which the various
parts are attached, of a hollow polished cast iron cylinder forming the upper pressing
appliance and of a hollow block also of polished cast iron constituting the lower
pressing appliance; this block is movable vertically by means of hydraulic pistons and
its upper face is curved or concave to receive the lower part of the cylinder. The
cylinder is heated internally by steam. The hollow block is likewise heated and its
concave face is covered with a sheet of German Silver. Between the cylinder and the
block an endless apron or length of felt or other material passes; this apron passes
over a number of rollers some of which are driven directly so as to cause the apron to
travel while others serve to tighten it when it lengthens from use, and another is
employed to regulate it. The fabric to be pressed is carried by the apron between the
cylinder and the concave block and is delivered to a folding appliance. Motion is
communicated to the cylinder by friction the speed being capable of variation. The
hydraulic cylinders are carried in the side frames or in wide machines between the
side frames so as to prevent the table sagging in the middle. The concave block is
mounted on the bydraulic pistons and is thereby enabled to exert equal pressure over
the width of the fabric which is not the case with machines in which the block is fixed
and the cylinder movable, in which case the latter exerts more pressure at the side
where the large driving wheel is situated.

page_text: One of the side frames has movable slides which allow of, the apron being with-
drawn and replaced without undoing the frames or removing the cylinder or block,
and with the same object the hydraulic cylinders terminate in a movable part.
Dated this 14th day of April 1888.
J. C. MEWBURN,
169, Flect Street, London,
Agent.
1, FERNAND DEHAÎTRE of 1 Boulevard St. Denis, Paris, France, Manufacturing
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 :-
This invention consists in the construction of a continuous hot press for pressing
and finishing fabrics and the characteristic. features of the improved apparatus aro
that an endless apron or length of felt or other material carries the fabric through the
pressing appliances, and that hydraulic pistons specially arranged support the lower
pressing appliance which is movable vertically, whereby a very uniform. pressure
throughout the width of the fabric is exerted.
Figure 1 is a transverse section and Figure 2 a longitudinal elevation partly in
section of an apparatus constructed according to this invention. Figure 3 is a modi-
fication showing another way of supporting the hydraulic pistons hereinafter referred
to. The apparatus is principally composed of two strong side frames RR to which
the various parts are attached, of a hollow polished cast iron cylinder a forming the
upper pressing appliance and of a hollow block also of polished cast iron constituting
the lower pressing appliance; this block is movable vertically by means of hydraulic
pistons CC, and its upper face is curved or concave to receive the lower part of the
cylinder. The cylinder is heated internally by steam admitted by the attachment d
through which the blow off also takes place. The hollow block is likewise heated and
its concave face is covered with a sheet of German silver. Between the cylinder and
the block an endless apron or length of felt or other material passes; this apron passes
over a number of rollers e, f, g, h, i, j, k, of which i, j, k are driven directly so as to
.cause the apron to travel while e and serve to tighten it when it lengthens from use,
and fis employed to regulate it. The fabric to be pressed is carried by the apron
between the cylinder and the concave block and is delivered to a folding appliance m
of ordinary construction. Motion is communicated to the cylinder by friction, the

page_text: ⋅
speed being capable of variation. The hydraulic cylinders are carried. in the side
frames (as seen in Figure 2) or, in wide machines; between the side frames as shown
in Figure 3 so as to prevent the table n sagging in the middle. The concave block is
mounted on the hydraulic pistons and is thereby enabled to exert equal pressure over
the width of the fabric which is not the case with machines in which the block is fixed
and the cylinder movable, in which caso the latter exerts more pressure at the side
where the large driving wheel is situated.
One of the side frames has movable slides p, which allow of the apron being with-
drawn and replaced without undoing the frames or removing the cylinder or block;
and with the same object the hydraulic cylinders terminate in a movable part q. -
The apparatus may have combined with it a steaming or damping appliance at the
inlet side and a cooling apparatus at the outlet side.
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 improved hot pressing apparatus constructed and working substantially as
hereinbefore described and shown in the annexed drawings.
2. In an apparatus for hot pressing fabrics, hydraulic pistons arranged to support.
the lower pressing appliance which is movable vertically, substantially as hereinbefore
described and shown in the annexed drawings.
Dated this 7th day of January 1889.
J. C. MEWBURN,
55 & 56, Chancery Lane, London,
Patent Agent.