Woollen or other Woven or Felted Fabrics.
Year: 1888

page_text: Woollen or other Woven or Felted Fabrics.
-
I, WALTER BEECROFT of the firm of Beecroft and Company, Swinegate, Leeds, i
the County of York, Clothiers 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 :-
My improvements have reference to “endless band knife." machines employed for
cutting woollen or other woven or felted fabrics, part of such improvements being
for the purpose of preventing clogging of the knife at the cutting point, avoiding
thereby the frequent breaking of such knife; and further my improvements consist
in the means employed for imparting to the knife the required degree of sharpness,
this being effected without stopping the machine.
Fig. 1 is a front elevation, Fig. 2 a plan looking underneath shewing arrangement
of guide pulleys for preventing clogging of the knife. Fig. 3 is a back elevation.
Fig., 4 a side elevation and Fig. 5 a plan shewing arrangement of sharpening
apparatus, and Eig. 6. an elevation of headstock shewing position in which my
improvements are applied thereon.
First my improvements consist in providing runners A A and B for steadying the
knife Cat the cutting point D.. The runners A A are carried on hinged brackets EE
mounted in adjustable bearings F F attached to the plate G by means of, screws H,
and the plate is fixed underneath the table I shown at Fig. 6.
These runners are retained in position shewn in drawing by the spiral spring K
attached to the hinged bracket E E by means of projecting pieces L L.
The knife C passes between the runners as shewn at Figs. 1 and 6 steadying
thereby the knife laterally on the flat sides; and should any lose bits or pieces be
carried down with the knife C and come in contact with the guide rollers A A, such
guide rollers swing away on their hinged brackets E E thus opening outwards and
allowing the bits or pieces to pass down or through with the knife C, and immediately
such bits or pieces have passed downwards.clear of these runners they are immediately
brought back to position shewn in drawings by means of the spiral spring K thus
preventing clogging of the knife at the cutting point 1) and frequent breaking of-the
same.

page_text: The runners A A are adjusted towards each other by right and left hand screws M.
The back runner B, steadies the knife and keeps it up to its work whilst cutting
and is of ordinary construction being mounted on adjustable bracket N on the plate G
which is fixed underneath the table.
In the second part of my improvenients at Figs. 3, 4, and 5, the grinding wheel is
shewn at O which consists of the ordinary emery or other composition or stone.
This wheel O is mounted in suitable bearing P provided on sliding piece R fitted so
as as to slide freely in hinged frame S carried on the plate T which is attached to the
headstock of the machine at U.
The hinged frame S carrying the sliding piece R is adjusted horizontally in its
position by means of set screw.V, and the sliding piece carrying the grinding wheel
is adjusted in a vertical direction by the screw W and hand wheel. X, a nut being
provided behind the sliding piece through which the screw works.
By the above arrangements of adjustment not only can the grinding wheel be
adjusted vertical, but also horizontally with regard to the endless knife so that the
proper form of sharp edge can readily be obtained and also by this adjustment the
grinding apparatus is applicable to various widths and thickness of knife. The above
sharpening operation can be effected without stopping the machine.
·
In order to bring the knife Cup to the grinding wheel O with the required
pressure, I provide a runner Y below it, mounted on a stud Z attached to a hand
lever 2, the hand lever 2 is attached to a radial arm or bracket 3 by means of bolt or
screw 4 and is capable of adjustment thereon. The radial arm or bracket 3 is
mounted on a stud 5 whereby it is attached to the headstock of the machine. The
radial arm or bracket 3 can be brought into position shewn in drawing ready for
the grinding operation and fixed there by nut 6 or moved away clear of the knife
when required..
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:
1. The arrangement and application of runners A A and apparatus connected
therewith for steadying the knife and preventing clogging of the same at the
cutting point, substantially as herein set forth.
2. The arrangement, construction and application of grinding apparatus, having a
vertical and horizontally adjustment of grinding wheel and also the, means employed
in combination therewith for pressing the knife up to the grinding wheel sub-
stantially as herein set forth.
Dated this 11th day of December 1888.