Improvements in Cutting the Pile of Weft Pile Fabrics.
Year: 1896

page_text: Date of Application, 24th Oct., 1896
Complete Specification Left. 23rd July, 1897-Accepted, 28th Aug.. 1897
Improvements in Cutting the Pile of Weft Pile Fabrics.
I GEORGE ROGER of 34 Ellesmere Street Warrington Master Fustian Cutter, do
hereby declare the nature of this Invention to be as follows:-
The improvements relate to knives employed in cutting the pile of weft pile
fabrics, and have for object to prevent such knives from tearing the cloth on a
puncture taking place.
To accomplish this and to effect my improvements, I attach to the knife holder
or handle a suitable fulcrum, to which is swivelled one extremity of a lever; such
lever having connected to it a bar or bolt which, as the lever oscillates, in a plane
parallel to the direction of cut, is caused to move therewith. At the other extremity of
this lever is swivelled a link, which, with the lever before mentioned, makes a knee
joint, and such link, at its opposite extremity, fits into or upon and is capable of
sliding along, the channel of the knife guide, and may. ride upon the knife itself.
A guide, projecting from the knife holder or handle, is also provided, to ensure the
movement of this link in a direction parallel to the run of the knife; a suitable pin,
or like means, being formed upon the link to take into the guide aforesaid..
I connect the knife, by suitable means, and by preference adjustably, to a slide,
which fits into a corresponding groove upon or within the surface of the holder or
handle, and a hole is formed in the slide, within which, in the normal condition of
the apparatus, the bar or bolt upon the swivelled lever rests, and prevents such
slide and consequently the knife to which it is attached-from being moved.
As soon, however, as the knife point enters the cloth being operated upon, the
surface of the fabric comes in contact with the extremity of the link, and slides
the same along its guide, raising the knee joint and lifting the bolt, whereupon the
knife slide is pushed out of its groove by the forward movement of the knife holder,
and the knife, along with such slide, falls upon the surface of the cloth.
Variations in detail may be made, such as in the form of the lever, link, slide and
guides, and in the manner of connecting all the parts, as well as in the material of
which they are composed, without departing from the peculiar character of the
invention.
Dated this 23rd day of October 1896.
WILLIAM GADD, C.E.,
64 Barton Arcade, Manchester, Agent.
I, GEORGE ROGER, of 34 Ellesmere Street Warrington, Master Fustian Cutter, do
hereby deolare the nature of this invention and in what manner the same is to be
[Price 8d.1

page_text: performed, to be particularly described and ascertained in and by the following
statement :-
The improvements relate to knives employed in cutting the pile of weft. pile
fabrics, and have for object to prevent such knives from tearing the cloth on a
puncture taking place.
To accomplish this and to effect my improvements, I attach to the knife holder or
handle a suitable fulcrum to which is swivelled one extremity of a lever; such lever
having connected to it a bar or bolt which, as the lever oscillates, in a plane parallel
to the direction of cut, is caused to move therewith. At the other extremity
of this lever is swivelled a link, which, with the lever above mentioned nakes a
knee joint, and such link, at its opposite extremity, fits into or upon and is capable
of sliding along the channel of the knife guide, and may ride upon the knife
itself.
A guide, projecting from the knife holder or handle, is also provided, to ensure
the movement of this link in a direction parallel to the run of the knife; a suitable
pin, or like means, being formed upon the link to take into the guide aforesaid.
I connect the knife by suitable means, and by preference adjustably, to a slide,
which fits into a corresponding groove upon or within the surface of the holder or
handle, and a hole is formed in the slide, within which, in the normal condition of
the apparatus the bar or bolt upon the swivelled lever rests; and prevents such
slide and consequently the knife to which it is attached-from being moved.
As soon, however, as the knife point enters the cloth being operated upon, the
surface of the fabric comes in contact with the extremity of the link, and slides
the same along its guide, raising the knee joint and lifting the bolt, whereupon the
knife slide is pushed out of its groove by the forward movement of the knife
holder, and the knife, along with such slide, falls upon the surface of the cloth.
But that the improvements may be better understood, I will, with the aid of the
accompanying drawings, proceed more fully to describe means employed by me.
DESCRIPTION OF DRAWINGS.
Figs. 1 and 2 are respectively a plan view and a side elevation of one form of
my invention, arranged with a knife in position for cutting the pile of the fabric
operated upon. Fig. 3 shows a side elevation of the same apparatus when the knife
is released on penetrating the cloth; and Fig. 4 is a plan view of such released
knife together with the slide holding the same.
The same letters indicate corresponding parts wherever they occur.
Attached to a knife carrier a, of any suitable form, is a fulcrum piece b, to which
is swivelled one extremity of a lever c, such lever having connected to it a screwed
block d, through which is passed by preference a screwed pin or bolt d'; and when
the lever c oscillates in a plane parallel to the direction of cut, the bolt d' is enabled
to move therewith. At the other extremity of the lever is swivelled a link e, and
such link at its opposite and bent extremity, fits into, and is capable of sliding
along the channel of the knife guide as shown in Fig. 3, but it is obvious that such
bent extremity might slide outside such knife guide.
A guide for this link composed preferably as shown of an arm g and spring g¹ is
provided along with the pin el to ensure the movement of the link e in a direction
parallel to the run of the knife.
h is a slide piece holding the knife, and is arranged to fit into corresponding
grooves formed upon the side extensions a' at the front part of the holder a. When
the knife and slide are in position for cutting, a hole in such slide is allowed to
be opposite to a like hole in the portion al of the holder, and also opposite the pin
or bolt d' which bolt, as shown in Fig. 2, locks the knife slide in the catting position
by passing through both pieces.
On the knife point penetrating the cloth, however, the surface of the fabric comes
in contact with the bent end of the link e, and slides the pin e¹ along its guide,
thus raising the knee joint formed by the lever c and link e, and at the same time

page_text: lifts the bolt d', whereupon the knife holder or slide is pushed out of its groove, as
shown in Fig. 3, by the forward movement of the handle or carrier a; and the
knife, along with the holder or slide h is separated from the handle piece and falls
upon the surface of the cloth.
Variations in detail may be made, such as in the form of the lever, link, slide,
and guides; and in the manner of connecting all the parts; as well as in the
material of which they are composed, without departing from the peculiar character
of the invention.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what I
claim is:-
In an apparatus used with a knife for cutting the pile of weft pile fabrics, the
combination of parts consisting of a swivelled lever and link together forming a
knee joint; a guide for controlling the movement of one end of the link; a pin or
bolt, adjustable or not, in connection with the lever aforesaid, and used for locking
in position or releasing a holder or slide carrying the cutting knife, all in manner
and for the purpose substantially as herein shown and described.
Dated this 22nd day of July 1897.
WILLIAM GADD, C.E.,
64, Barton Arcade, Manchester, Agent for Applicant.