Improvements in or applicable to Looms for Weaving Tufted Fabrics.
Year: 1893

page_text: Date of Application, 31st July, 1893
Complete Specification Left, 27th Dec., 1893-Accepted, 27th Jan., 1894
PROVISIONAL SPECIFICATION.
Improvements in or applicable to Looms for Weaving Tufted
Fabrics.
We, GIULIO MARCHETTI and HENRY NORMAN MELLOR, both of Dean
Clough Mills, Halifax, in the County of York, Carpet Manufacturers, do hereby
declare the nature of this invention to be as follows:-
:-
This invention has reference to the grippers used in looms for the production
of tufted pile fabrics such for example as that described in Patent No. 15680
of 1890.
It is of considerable importance that the grippers should be kept as thin as
possible so as to allow them to pass easily between the warp threads and dents of
the reed and according to our invention we so construct the grippers as to obtain
greater rigidity and strength with less thickness than hitherto, and at the same time
our improved grippers cannot be displaced by the shuttle in passing over them as
is the case with the present construction of grippers, such displacement causing
the jaws to disengage and cross one another.
In carrying out our invention we construct our grippers with a guide towards
one or both extremity or extremities such guide comprising a pin or plate on one
portion of the grippers adapted to slide freely in a corresponding hole in the other
portion of the grippers in such a manner that while the grippers can be opened
and closed without difficulty the two portions of the grippers cannot move laterally
but are kept one above the other and cannot be disengaged or crossed by the action
of the shuttle or otherwise.
In some cases our guides may be constructed of a metal band or bands on one
or both extremity or extremities of one portion of the grippers, such band or
bands passing round the other portion of the grippers. The band or bands is or
are of sufficient length to allow the grippers to open freely and of sufficient
rigidity to prevent lateral motion of the two portions of the grippers so as to
keep them one above the other and prevent them from being displaced by the
action of the shuttle or otherwise.
We reduce the thickness of those portions of the grippers over which the
bands pass so as to prevent the bands from projecting laterally beyond the body of
the grippers.
1
1
1
1000.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.
Improvements in or applicable to Looms for Weaving Tufted
Fabrics.
We, GIULIO MARCHETTI and HENRY NORMAN MELLOR, both of Dean
Clough Mills, Halifax, in the County of York, Carpet Manufacturers, 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:-
This invention has reference to the grippers used in looms for the production

page_text: of tufted pile fabrics such for example as that described in Patent No. 15680
of 1890.
It is of considerable importance that the grippers should be kept as thin as
possible so as to allow them to pass easily between the warp threads and dents of
the reed and according to our invention we so construct the grippers as to obtain
greater rigidity and strength with less thickness than hitherto, and at the same time
our improved grippers cannot be displaced by the shuttle in passing over them as
is the case with the present construction of grippers, such displacement causing
the jaws to disengage and cross one another.
In order to enable our invention to be fully understood we will describe the same
by reference to the accompanying drawing, in which :—
Figures 1 and 2 represent elevations of grippers constructed according to our
invention:
Figures 3 and 4 are sections on the lines 3-3 and 4-4 of Figure 1; and,
Figures 5 and 6 are sections on the lines 5-5 and 6-6 of Figure 2.
Similar letters in all the figures represent similar or corresponding parts.
In carrying out our invention we construct our grippers with a guide on one
arm or extremity or on both arms or extremities, each guide comprising a pin a,
Figures 1, 3 and 4, on one portion A of the grippers adapted to slide freely in a
corresponding hole in the other portion B of the grippers in such a manner that,
while the grippers can be opened and closed without difficulty, the two portions A
and B of the grippers cannot move laterally but are kept one above the other and
cannot be disengaged or crossed by the action of the shuttle or otherwise. In the
drawing the grippers are shewn as having two of our guides one on each arm;
instead of pins, the guides may be in the form of plates.
In some cases our guides may be constructed as shewn at Figures 2, 5 and 6,
riz., of a metal band a on the portion A of the grippers, such bands passing round
the other portion B of the grippers. The bands are of sufficient length to allow
the grippers to open freely and of sufficient rigidity to prevent lateral motion
of the two portions of the grippers so as to keep them one above the other and
prevent them from being displaced by the action of the shuttle or otherwise.
We reduce the thickness of those portions of the grippers at e so as to form
recesses in which the bands slide so as to prevent them projecting laterally beyond
the body of the grippers.
It will be obvious that instead of bands on one part of the grippers embracing
both sides of the other part of the grippers a single strip or a plate may be
employed bearing against one side of the other part of the gripper, in which
case we prefer to employ for each or both arms two of such plates placed on
opposite sides.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. Providing one portion of the grippers used in looms for weaving tufted
pile fabrics with a guide or guides adapted to slide in a hole or holes or a recess
or recesses in the other portion of the grippers as, and for the purposes, substan-
tially as described.
2. The manufacture and use of grippers for use in looms for weaving tufted
pile fabrics, substantially as hereiubefore described and illustrated in the accom-
panying drawing.
3. A loom for weaving tufted pile fabrics having grippers provided with guides
as hereinbefore described.
T
1
MAIS
23rd day of December 1895.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.