Improvements in Ironing Machines.
Year: 1896

page_text: We, LAZARUS BELL and THOMAS ALFRED BELL, both of Joseph Street Ironworks,
Bradford, in the County of York, Engineers, do hereby declare the nature of this
invention to be as follows:-
This invention relates to improvements in that type of ironing machine in which
an endless belt or "blanket " is employed to pass the articles or material to be ironed
through the machine; and its object is to prevent these blankets shrinking in width.
For this purpose we form a right hand screw thread or helical groove on one half
of one of the tension or guide rollers commencing approximately at the middle and
we form a left hand screw thread or helical groove on the other half of the roller.
The two threads are so formed that when the roller is revolving the two threads
appear to be running away from each other, i.e. from the middle outwards,
consequently sufficient lateral tension is put upon the blanket bearing upon the roller
to prevent it shrinking. Any or all of the rollers may be threaded in this way but
we find the bottom tension roller in machines of certain construction sufficient.
The left and right hand threads may be cut in the substance of the rollers or they
may be formed by wrapping the rollers with cord or other suitable material wound
helically upon them.
Dated this day of dentombox 1906
DRACUP & NOWELL,
Bradford, Patent Agents.
Improvements in Ironing Machines.
We, LAZARUS BELL and THOMAS ALFRED BELL, both of Joseph Street Ironworks,
Bradford, in the County of York, Engineers, 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 that type of ironing machine in which
an endless belt or "blanket" is employed to pass the articles or material to be
ironed through the machine; and its object is to prevent these blankets shrinking in
width.
For this purpose we form a right hand screw thread or helical groove on one half
of one of the tension or guide rollers commencing approximately at the middle and
we form a left hand screw thread or helical groove on the other half of the roller.
The two threads are so formed that when the roller is revolving the two threads
appear to be running away from each other, i.e. from the middle outwards,
consequently sufficient lateral tension is put upon the blanket bearing upon the

page_text: roller to prevent it shrinking laterally. Any or all of the rollers may be threaded in
this way but we find the bottom tension roller in machine similar to C. S. Crabtree's
for which a patent has been granted No. 14454 24th October 1887 is sufficient.
The left and right hand threads may be cut in the substance of the rollers or they
may be formed by wrapping the rollers with cord or other suitable material wound
helically upon them.
The accompanying drawing represents an elevation of a roller made in accordance
with our improvements in which parts are broken away in order that it may be shown
on a larger scale and a portion is shown in diametrical section to illustrate the form
of thread we prefer to use.
The roller is driven in the direction of the arrow and the thread A on the left hand
side is a "right hand" thread and the thread B on the right hand side is a "left
hand" thread.
Having now particularly described and ascertained the nature of our said
Invention, and in what manner the same is to be performed, we declare that
what we claim is :
In an ironing machine, the means or method herein described of keeping the
"blanket " under lateral tension whilst in operation, substantially as herein shown.
DRACUP & NOWELL,
Bradford, Patent Agents.