IMPROVE- MENTS IN MEANS OR APPARATUS FOR SINGEING AND CROPPING TEXTILE FABRICS
Year: 1871

page_text: PROVISIONAL SPECIFICATION left by Abraham Waddington and
Walter James Turner at the Office of the Commissioners of Patents,
with their Petition, on the 15th June 1871.
We, ABRAHAM WADDINGTON, Engineer and Machine Maker, and
WALTER JAMES TURNER, Engineer, both of Bradford, in the County of
York, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN MEANS OR APPARATUS FOR SINGEING AND CROPPING TEXTILE FABRICS,"
to be as follows:-
This Invention relatos, firstly, to improvements in means or apparatus
for singeing and cropping textile fabrics, and consists in applying a self-
acting motion to singeing machines for the purpose of shutting off the
supply of gas to the jets or burners employed in singeing the fabrics at
the times the fabrics under opperation are stopped in their progress
through the machine by accident or otherwise, thereby preventing such
fabrics being burned. or scorched at such times, as in the case with
machines as ordinarily arranged.
In carrying out this part of our Invention we employ a roller in
addition to the (drag roller or rollers) arranged in position so that when

page_text: it is required to start the machine the additional roller is, by means of
forked jointed levers (operated by the strap guide motion) raised on to
the top of the drag rollers, and the roller is there retained so long as the
machine is in motion by friction and the revolutions.imparted to it by the
fabric, but immediately the fabric is stopped through its progress through
the machine from any cause, or the length of fabric under operation has
passed through the machine, the roller will fall back on to inclined
brackets to support it at its lower portion, and in so doing it will come
in contact with a lever or levers, one end of each of which is connected
to a rod or bar, which by means of a connecting rod is connected to a
lever affixed to the gas supply tap or valve, and in so doing will shut off
or nearly shut off the supply of gas to the jets or burners. The forked
levers are so formed that they can slide up and down in brackets, and
they are jointed at their lower end in such manner that the lower end
can only turn on its centre in one direction. A cam surface is affixed to
the bar or rod operating the strap guide motion in such position that
when the strap is thrown on to the fast pulley to start the machine the
cam surface will come under the end of the forked levers and raise the
extra roller on to the drag roller, and in so doing will liberate the lever
or levers operating the tap or valve regulating the flow of gas to the jets
or burners, and turns on the gas, but immediately the cam surface has
passed the lower end of the forked lever it will leave that lever free to
fall into position to be again operated upon.
When the machine is required to be stopped after a piece or a series
of pieces has been singed, the cam surface affixed to the bars or rods
actuating the strap guide will come against the lower ends of the forked
levers, and turn the same out of the way, and as soon as the cam surface
has passed the lower ends of the forked levers will be brought back to
their original position, either by their own weight or by springs or other:
wise, and at the same time the roller will fall and act upon the levers
operating the gas supply tap or valve and turn off the gas.
Our Invention relates, secondly, to the application of a spiral re-
volving knife or spiral revolving knives to machinery for singeing textilo
fabrics in such position that the fabric after being singed and brushed
may, without leaving the machine, be cropped, whereby great saving of
time and labor will be obtained. The fabric is drawn away from the
singeing part of the apparatus by means of drag rollers, and in its
passage it is supported by bars or rollers into position to pass under the

page_text: cutting cylinder or cylinders, and it is drawn through the cropping part
of the apparatus by a drag roller or drag rollers.
Our Invention relates, thirdly, to means of conducting the fabric
in its motion through cropping machinery so that such fabric may be
cropped twice by one revolution of the knife or knives of the cutting
cylinders. In carrying out this part of the Invention we arrange each
cutting cylinder to act with two ledger blades fixed in such positions
that the fabric may be cropped at one point, and afterwards the fabric
may be again cropped at another point. A roller or bar or rollers or
bars support the fabric in positions to be cropped.