IMPROVEMENTS IN POWER LOOMS EMPLOYED FOR THE MANUFACTURE OF BRUSSELS AND TAPESTRY CARPETS AND FABRICS OF A STATTAR NATURE
Year: 1879

page_text: LETTERS PATENT to Henry Toye Woodward and George William Grosvenor,
both of Kidderminster, in the County of Worcester, Carpet Manufacturers and
Co-partners, for the Invention of "IMPROVEMENTS IN POWER LOOMS EMPLOYED
FOR THE MANUFACTURE OF BRUSSELS AND TAPESTRY CARPETS AND FABRICS OF
A STATTAR NATURE"
Sealed the 12th September 1879, and dated the 29th March 1879.
PROVISIONAL SPECIFICATION left by the said Henry Toye Woodward and
George William Grosvenor at the Office of the Commissioners of Patents on
the 29th March 1879.
HENRY TOYE WOODWARD and GEORGE WILLIAM GROSVENOR, both of Kidder-
minster, in the County of Worcester, Carpet Manufacturers and Co-partners.
"IM-
PROVEMENTS IN POWER LOOMS EMPLOYED FOR THE MANUFACTURE OF BRUSSELS
AND TAPESTRY CARPETS AND FABRICS OF A SIMILAR NATURE."
This Invention has for its object improvements in Brussells and tapestry carpet
and other power looms, and the improvemenss relate to the means employed for
giving motion to the "lathe."
In order to give motion to the "lathe" or "lay" of a loom, we employ eccentrics
fixed on the main or driving shafts, and each embraced by a strap or collar, from
which a rod passes, and is jointed to the lathe so that the lathe is worked to and fro
by the revolution of the eccentrics.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Henry Toye Woodward and George William Grosvenor in the Great
Seal Patent Office on the 27th September 1879.
"
HENRY TOYE WOODWARD and GEORGE WILLIAM GROSVENOR, both of Kidder-
minster, in the County of Worcester, Carpet Manufacturers and Co-partners IM-
PROVEMENTS IN POWER LOOMS EMPLOYED FOR THE MANUFACTURE OF BRUSSELS
AND TAPESTRY CARPETS AND FABRICS OF A SIMILAR NATURE."
This Invention has for its object improvements in power looms employed for
the manufacture of Brussels and tapestry carpets and fabrics of a similar nature.
And the improvements relate to the means employed for giving motion to the
"lathe."
In order to give motion to the "lathe" or "lay" of a loom, we employ eccentrics
fixed on the main or driving shafts, and each embraced by a strap or collar from
which a rod passes, and is jointed to the lathe so that the lathe is worked to and
fro by the revolution of the eccentrics.
The Drawing hereunto annexed shews an end view of the lathe or lay of a power
loom, such as is employed for weaving Brussels and tapestry carpets and fabrics of
a similar nature. The drawing also shews the driving shaft of the loom, having
upon it one of the eccentrics used for driving the lathe or lay. Ordinarily two
eccentrics are used, one near each end of the shaft, to give motion to the lathe or
lay at its two ends, but for wide looms a greater number of eccentrics might be
used.
A is the lay or lathe turning at its lower end on an axis B as is usual; C is
the main or driving shaft of the loom; D is the eccentric fixed upon it; E is the
strap or collar by which the eccentric is embraced; F is the rod which passes from
this strap or collar, and which is jointed to the lay or lathe as shown.
The arm G,
which is shown as projecting from the back of the lay or lathe, is for the purpose
of carrying apparatus for tightening up the weft after the shuttle has been thrown;
but as this apparatus forms no part of our Invention we have not shown it in the
Drawing. The other parts of the loom also may be of any ordinary construction,
so that it is unnecessary to show or describe them.
By giving motion to the lay or lathe in the manner above described from eccentrics
on the main or driving shaft in place of giving motion to it from cranks on this shaft,
the driving shaft, having no bends or cranks in it, can be made stiffer, and the eccentric
straps will have a far larger bearing surface on the eccentrics than could be obtained
between a connecting rod and crank pin. Greater resisting power against the con-
cussion of the lathe is thus obtained, and the chance of breakage of the machinery
thereby lessened. Also, by reason of the greater wearing surface afforded between the
eccentric and the strap or collar which embraces it, the strap or collar is not liable
by reason of wear to become loose, and consequently the lathe moves forward
quietly instead of going forward with a jerk as is commonly the case, and this is of
great advantage in power looms used for weaving Brussels and tapestry carpets
and fabrics of a similar nature, that is, fabrics woven with a pile surface produced
by pile warps being caught over wires which have subsequently to be withdrawn
from the loops so produced.
Having thus described the nature of our Invention, and the manner of performing
the same, we would have it understood that we claim as our improvements in power
looms employed for the manufacture of Brussels and tapestry carpets and fabrics
of a similar nature, the giving motion to the lay or lathe by eccentrics on the main

page_text: or driving shaft of the loom, and by straps or collars embracing these eccentrics
and rods or connections passing from these straps or collars, and jointed to the lay or
lathe substantially as described.
In witness whereof, we, the said Henry Toye Woodward and George William
Grosvenor, have hereunto set our hands and seals, this Twenty fifth day
of September, in the year of our Lord One thousand eight hundred and
seventy nine.
HENRY TOYE WOODWARD.
(L.S.)
GEORGE WILLIAM GROSVENOR. (L.S.)