Improvements in or appertaining to Jacquard Mechanism for Looms.
Year: 1889

page_text: Date of Application, 12th June, 1889
Complete Specification Left. 12th Mar. 1890-Accepted. 12th Apr.. 1890
PROVISIONAL SPECIFICATION.
Improvements in or appertaining to Jacquard Mechanism for
Looms.
I, GEORGE WRIGHT, of 144, Newcross Street, Bradford in the County of York,
Manager, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in that portion of Jacquard apparatus
commonly called the "comber board or the finely perforated board employed to
guide the harness, diverging from the Jacquard machine, in a vertical manner to the
several warp threads, and its object is to reduce the friction of the passage of the
harness through said board and also to increase its durability particularly in weaving
"fine sets."
The comberboard commonly consists of a more or less finely perforated wooden
board situated between the warp and the Jacquard machine and it is obvious that as
the harness passing from the Jacquard to the outer warp threads diverges to a
considerable extent to allow said board to guide it in a vertical manner to such
threads the friction occasioned by the up and down motion of the harness absorbs a
large amount of power as well as rapidly wears the harness and also the board by
gradually wearing away the divisions between the several perforations, particularly in
fine sets."
My said improvements consist of forming the perforated or the divisional part of
the comberboard of interlaced or interwoven wire, leaving interspaces having
durable divisions with rounded edges over which the harness slides with little
friction.
To carry out my invention I employ a wooden, metal, or other suitable frame
preferably of less width than an ordinary comberboard adapted for the same count.
Within said frame I stretch a number of longitudinal wires of flat section and
perforated horizontally. Transverse wires of round section are threaded through such
horizontal transverse perforations with their ends secured to the outer longitudinal
wires or to the said frame in any convenient manner thus leaving interspaces between
the several wires having rounded edges through which the harness freely pass at the
required angle with little friction.
As a modification longitudinal and transverse wires of a suitable section may be
interwoven leaving interspaces through which the harness passes and having their
ends secured by solder, riveting or in any convenient manner.
Dated this 8th day of June 1880
DRACUP & NOWELL.
COMPLETE SPECIFICATION.
Improvements in or appertaining to Jacquard Mechanism for
Looms.
I, GEORGE WRIGHT, of 144, Newcross Street, Bradford in the County of York,
Manager, 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 relates to improvements in that portion of Jacquard apparatus
commonly called the "comberboard" or the finely perforated board employed to
guide the harness, diverging from the Jacquard machine, in a vertical manner to the
several warp threads, and its object is to reduce the friction of the passage of the
harness through said board and also to increase its durability particularly in weaving
" fine sets."
The comberboard commonly consists of a more or less finely perforated wooden

page_text: board situated between the warp and the Jacquard machine and it is obvious that as
the harness passing from the Jacquard to the outer warp threads diverges to a
considerable extent to allow said board to guide it in a vertical manner to such
threads the friction occasioned by the up and down motion of the harness absorbs a
large amount of power as well as rapidly wears the harness and also the board by
gradually wearing away the divisions between the several perforations, particularly in
fine 'sets."
My said improvements consist in forming the perforated or the divisional part of
the comberboard of interlaced or interwoven wire leaving interspaces having
durable divisions with rounded edges over which the harness slides with little
friction.
To carry out my invention I employ a wooden, metal or other suitable frame
preferably of less width than an ordinary comberboard adapted for the same count.
Within said frame 1 stretch a number of longitudinal wires of flat section and
perforated horizontally. Transverse wires of round section are threaded through
such horizontal transverse perforations with their ends secured to the outer longi-
tudinal wires or to the said frame in any convenient manner thus leaving inter-
spaces between the several wires having rounded edges through which the harness
cords freely pass at the required angle with little friction.
As a modification longitudinal and transverse wires of a suitable section may be
interwoven leaving interspaces through which the harness passes, and having their
ends secured by solder, or in any convenient manner.
Reference is made to the accompanying drawing forming a part of this specification
in which similar letters of reference indicate corresponding parts in each of the
figures.
Figure 1, is a plan view of one end of a comberboard made in accordance with my
invention. Figure 2, is a longitudinal section and Figure 3, a cross section of the
same.
Figures 4 and 5 are respectively a plan and longitudinal section of one end of a
slightly modified construction of board.
Figure 6, is a plan view of one end of a comberboard having the divisions or
perforations formed of interwoven wire, and Figure 7, is a cross section of the same
on a larger scale.
In figures 1, 2 and 3 a number of wires A of flat section are secured longitudinally
in the frame B of the comberboard and these wires and frame are perforated
transversely to receive the cross wires C of round section, thus leaving inter-
spaces D between the several wires particularly adapted to form smooth guides
for the harness cords and allow such cords to freely slide over their rounded
edges.
In figures 4 and 5 longitudinal wires A¹ of round section are employed fixed
at each end to the ends of the frame B and passing at intervals through perforated
cross wires C¹ of flat section fixed across the frame. The space between the cross
wires are filled in with cross wires C passed through perforations in the side of the
frame a suitable distance apart.
A comberboard of interwoven wire is represented by figures 6 and 7. The wire E
is either woven the required breadth in the form of wire gauze or is cut from a sheet
of wire gauze and it is bound round the edge with strips of tin F or other sheet metal
the ends of the wire being preferably secured by solder in the sheet metal binding.
Grooves G are made in the frame and the wire gauze E placed therein before the
frame is complete.
Having now particularly described and ascertained the nature of my said
Invention, and in what manner the same is to be performed, 1 declare what I
claim is :
1. A comberboard in which the divisions for separating and guiding the harness
cords are formed of wire arranged substantially as herein shown and described and
for the DHEDS ssified

page_text: 2. A comberboard formed of perforated wire of flat section secured in a suitable
frame with wire of round section arranged at right angles thereto and passing
through said perforations, substantially as herein shown and described and for the
purpose specified.
3. A comberboard formed of interwoven wire mounted in a suitable frame, sub-
stantially as herein shown and described and illustrated in the accompanying
drawings.
DRACUP & NOWELL,
Bradford, Agents.