IMPROVEMENTS IN MEANS FOR PREVENTING THE DESTRUCTION OF COTTON SELVAGES IN ALL KINDS OF WOOLLEN PIECE GOODS BY THE ACIDS &C. USED IN THE PROCESS OF EXTRACTING THE VEGETABLE MATTER THEREFROM
Year: 1884

page_text: We, JOSEPH HACKING RILEY and JOHN DOWNHAM Machinists, both of Bury in
the County of Lancaster, do hereby declare the nature of our invention for
"IMPROVEMENTS IN MEANS FOR PREVENTING THE DESTRUCTION OF COTTON
SELVAGES IN ALL KINDS OF WOOLLEN PIECE GOODS BY THE ACIDS &C. USED IN
THE PROCESS OF EXTRACTING THE VEGETABLE MATTER THEREFROM," and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement :—
"
It consists of an addition to a machine for removing vegetable fibre from
woollen piece goods, for which the above named Joseph Hacking Riley obtained
Letters Patent Numbered 1678 on the 16th of April 1881.
In treating woollen piece goods with acids &c for the above purpose it is found
that the acids destroy the selvages which consist largely or wholly of cotton.
To prevent this we place across the frame of the machine beforementioned
between the last and large set of squeezing rollers and the drying cylinders, two
wooden bars or guides, sliding upon these bars are two or more wooden troughs
containing a solution of soda or other alkali, revolving in each of the troughs by
means of suitable bearings is a narrow roller or disc covered with with woollen
cloth, or other suitable covering. Each trough can be fixed at any part of the two
wooden bars beforementioned by means of a bolt passing between them and
tightened underneath by means of a thumbscrew or by any other ordinary method.
At a suitable beight above the bars we place a square metal bar or axle revolving
in bearings at each end, and carrying two or more narrow wooden rollers or discs
to correspond with the discs in the troughs. These rollers or discs have each a
metal centre which slides upon the bar and can be fixed at any point by means of
a small tightening screw, the troughs being moved to correspond so as to suit any
width of cloth..
When the cloth in process of Extracting has passed through the last and large
set of squeezing rollers it is then passed over the lower discs or rollers and the
edges of the upper rollers are placed in contact with its upper surface and pressure
applied to the axle by any ordinary means.

page_text: A solution of soda, or other alkali is thus applied to the selvages as fast as the
cloth is passed from the acid trough, neutralizing the action of the acid and
preserving them.
We may also apply this apparatus to the cloth before it enters the acid trough,
or when it is halfway through, or any other part of the machine, but we prefer the
place mentioned as the best in our opinion.
In order that the foregoing may be better understood we send herewith a sheet
of drawings of which the following is a description
Figs. 1, 2 & 3 are respectively Plan, side Elevation and End Elevation of the
apparatus; a a are the narrow rollers or discs, b b the troughs containing the
solution of soda, c c the two wooden bars for their support, and d d the square
axle or bar. Fig. 4 shows the position in which the apparatus is placed on the
Extracting Machine..
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
First. The apparatus, substantially as described, and for the purpose set forth
and indicated hereinbefore and in and by the accompanying drawing.
Second. The use of narrow rollers or discs revolving in troughs, substantially as
described for the purpose set forth.
JOSEPH HACKING RILEY.
JOHN DOWNHAM.