IMPROVEMENTS IN MACHINERY FOR WEAVING CARPETS, COACH LACE, AND VELVET
Year: 1853

page_text: LETTERS PATENT to Thomas Thompson, of Much Park Street,
Coventry, in the County of Warwick, Engineer, for the Inven-
tion of "IMPROVEMENTS IN MACHINERY FOR WEAVING CARPETS, COACH
LACE, AND VELVET."
Sealed the 14th December 1858, and dated the 19th October 185%.
PROVISIONAL SPECIFICATION left by the said Thomas Thompson
at the Office of the Commissioners of Patents, with his Petition,
on the 19th October 1853.
I THOMAS THOMPSON, do hereby declare the nature of the said
Invention for IMPROVEMENTS IN MACHINERY FOR WEAVING CARPETS,
COACH LACE, AND VELVET," to be as follows:-
My Invention relates, first, to an improved method of making two
pieces of terry or Brussels carpet together in one loom, and in the same
time that is now required to weave one piece. This object is effected
by making one piece over the other by means of a double set of warps.

page_text: According to the ordinary plan of weaving one piece at a time, three
warps are required, namely, one of worsted and two of thread; my plan
will, however, require six warps, namely, two of worsted and four of
thread, with a double set of harness or heddles, one set to form the shed
of the upper piece, and the other set to form the shed of the lower
piece. The two pieces are to be woven face to face, that is, the lower
piece is to be made with the right side or face upwards, and the upper
piece with the right side or face downwards...
By that means I am enabled to make one wire from the terry of both
pieces at one and the same time. Three openings or sheds will be
made in the warps at one and the same time, one shed in the upper
warp for the one shuttle to pass through and to form the tie of one piece,
and another shed is formed in the lower warp for the other shuttle to
pass through and form the lower piece.. An opening.must also be made
in the worsted warps between the top and bottom thread warps for the
wire to enter to make the terry in both picces at the same time.
this means the worsted or figure warp to form the loops.
or terry of the
upper piece will pass under the wire, while the figure or worsted warps
to form the terry or loops of the under piece will pass over the wire.
It will, therefore, he understood that the two pieces will be only con-
nected together by the wires, and therefore immediately the wire is
pulled out the two pieces will come asunder.
By
The next improvement relates to a means of making the two pieces
into one of double the breadth or width, or, in other words, of weaving
wide carpets in narrow looms. In order to effect this object I make
use of two shuttles, which are thrown simultaneously across in the same
direction; but one shuttle being made to go through the upper shed,
and the other through the lower shed; then the shuttle coming through
the upper shed will descend and go back through the lower one, and
the lower one will rise be made to return through the upper shed.
To effect this object the shuttles must be made to change places on
one side, but not on the other side of the work. There will be two
boxes on each side of the work to receive the shuttles, but the boxes
on the side where the shuttles change will be made to turn on a centre
so as to reverse the position of the shuttles, and place the top one at

page_text: the bottom, and the bottom one at the top, after every throw across
the loom. By this means the two pieces of carpet will be connected
together at one side so as to form one piece of double the width of the
reed.
The next part of the Invention relates to a means of facilitating the
introduction of the terry wire into the shed, and consists in the use or
employment of a rod or stiff wire, which is connected at one end to a
moving arm, and is provided at the other end with a ring or other
suitable contrivance to support or carry the wire into the opening to
make the terry. After the wire has been introduced the rod or stiff'
wire which supports the terry wire is drawn back, leaving the terry
wire in the work ready to be driven up by the slay. The terry wire is
subsequently drawn back at the proper time, and when the work is
completed the piece may be laid open, and one piece of double the
ordinary width will be produced, on which much larger and nobler
patterns than now can be made on the common breadth may be
produced.