IMPROVEMENTS IN MECHANISM OR APPARATUS FOR PRODUCING A PILED SURFACE
Year: 1870

page_text: PROVISIONAL SPECIFICATION left by John Carter Ramsden at the
Office of the Commissioners of Patents, with his Petition, on the
19th January 1870.
I, JOHN CARTER RAMSDEN, of Bradford, in the County of York,
Manufacturer, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN MECHANISM OR APPARATUS FOR PRODUCING A PILED SURFACE,"
to be as follows:-
My Invention relates to that class of goods in which the material to
form the pilé is either wove in by the ordinary shuttle or inserted by
means of weft carriers or needles, and consists in the application, employ-
ment, or use of a novel and peculiar arrangement and combination of
parts to cut or separate the said material to form the necessary piled:
surface. I am aware that various attempts have been made at different
times to cut the loops and produce the said pile during the process of
weaving by means of knives either in one continuous row or arranged
spirally round a roller (as many knives as loops), and various other
attempts all more or less impracticable have been made at different
times to accomplish this desirable result. One great hindrance to the
.

page_text: use of a number of knives has been the almost insurmountable difficulty
of keeping them at a proper degree of sharpness, the importance of
which will be understood when I state that the piled surface produced
by knives of a different degree of sharpness. will consist of a variety of
different shades. This difficulty I propose to overcome by dispensing
with the use of knives altogether, and operating upon the loops in
order to sever them and so form the pile by means of "friction," and
this forms the chief element of novelty in my said Invention. The
method by which I propose to accomplish this is somewhat as follows:-
Attached to the breast beam or some other convenient part of the loom
I place a guide comb with taper points, these said points are caused
each to take into and pass under a loop formed in the cloth. Across the
loom and resting upon the guide comb, but working in bearings, I
place a roller, this said roller may either have a plain surface or it may
be fluted either in straight lines or spirally, or it may have grooves
cut in it in accordance with the nature and strength of material of which
it is desired to form the pile. The method of operation is somewhat
as follows:-After the guide combs are set with their taper points each
inserted into its proper row of loops, the process of weaving is then
continued, and as the cloth is beaten up by the reed and taken up by
the piece beam the loops will have passed more or less up. the points
of the guide comb. The roller which rests upon the said comb can be
caused to revolve at a quick speed either at every beat up of the lathe
or at every second, third, or fourth beat up, just as it may be found
necessary to sever the loops which are then travelling up the taper points
of the guide combs, and to prevent the said guide comb from wearing
nicks or recesses in the said roller, and as well to facilitate the cutting
of the loops, the said roller during the time it is revolving is made to
traverse more or less across the said guide.comb. The said roller can
be operated upon to. cause it to revolve at the proper time and to traverse
the proper
distance either by cams or tappets, or by any other well known
mechanical means.