IMPROVEMENTS IN LOOMS FOR WEAVING
Year: 1871

page_text: LETTERS PATENT to William Henry Glover, of the City of Manchester,
in the County of Lancaster, Manufacturer, and James Hargreaves,
of Ashton-under-Lyne, in the same County, Manager, for the
Invention of "IMPROVEMENTS IN LOOMS FOR WEAVING”
Sealed the 18th August 1871, and dated the 22nd February 1871.
PROVISIONAL SPECIFICATION left by the said William Henry Glover
and James Hargreaves at the Office of the Commissioners of
Patents, with their Petition, on the 22nd February 1871.
We, WILLIAM HENRY GLOVER, of the City of Manchester, in the
County of Lancaster, Manufacturer, and JAMES HARGREAVES, of Ashton-
under-Lyne, in the same County, Manager, do hereby declare the nature
of the said Invention for "IMPROVEMENTS IN LOOMS FOR WEAVING," to be
as follows:-
This Invention relates to looms for weaving fancy fabrics, and consists
in improved arrangements of mechanism for working the healds to open
and close the shed according to the required pattern or design.

page_text: The top staves or shafts of the healds are connected to double jacks or
quadrant levers above the healds and the bottom staves to ordinary
balance levers below, and these jacks and levers are connected by wires,
cords, or chains to two sets of upright bars having hooks or projections
at their upper ends. The hooks are caught according to the required
pattern by a vibrating or sliding knife or lifter, and the bars ‘at their
lower ends are acted upon by a sliding plate, the hooks being moved
horizontally to and from the knife one way by springs and the other way
by pattern metal cards or pattern barrels. The sliding plate and knife
are moved up and down by a lever and rod connected to a crank on the
crank shaft of the loom, the sliding plate raising the hooks above the
knife and the springs placing the hooks at one side over the knife unless
prevented by the pattern cards or barrels, and as one set of hooks is
employed for raising the healds and the other set for lowering them the
shed is opened and closed with great certainty and steadiness and the
loom can be worked at a very high speed. The pattern barrel or barrel
carrying the pattern cards is placed on a shaft in a vibrating frame, to
which we give motion by a cam on a countershaft having revolving
motion imparted to it by an endless chain worked by chain wheels from the
crank or tappet shafts of the loom. And to give intermittent revolving
motion to the pattern barrel or the barrel carrying the metal cards we
cause pins or nogs on a disc fixed to the countershaft to act on pins or
nogs on a disc fixed to the barrel shaft, and as positive motion is given
to the countershaft by means of the endless chain if the motions of the
loom are reversed and again put on the pattern will always bo in its
right place.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Henry Glover and James Hargreaves in
the Great Seal Patent Office on the 22nd August 1871.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, WILLIAM
HENRY GLOVER, of the City of Manchester, in the County of Lancaster,
Manufacturer, and JAMES HARGREAVES, of Ashton-under-Lyne, in the
sane County, Manager, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-second day of February, in the
year of our Lord One thousand eight hundred and seventy-one, in the

page_text: thirty-fourth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto us, the said William Henry Glover and James.
Hargreaves, Her special license that we, the said William Henry Glover
and James Hargreaves, our exccutors, administrators, and assigns, or
such others as we, the said William Henry Glover and James Har-
greaves, our executors, administrators, and assigns, should at any time
agree with, and no others, from time to time and at all times thereafter
during the term therein expressed, should and lawfully might make,
usc, exercise, and vend, within the United Kingdom of Great Britain
and Ireland, the Channel Islands, and Isle of Man, an Invention for
"IMPROVEMENTS IN LOOMS FOR WEAVING," upon the condition (amongst
others) that we, the said William Henry Glover and James Har-
greaves, our executors or administrators, by an instrument in writing:
under our, or their, or one of our or their hands and seals, should
particularly describe and ascertain the nature of the said Invention,
and in what manner the same was to be performed, and cause the same.
to be filed in the Great Seal Patent Office within six calendar months.
next, and immediately after the date of the said Letters Patent.
NOW KNOW YE, that we, the said William Henry Glover and James
Hargreaves, do hereby declare the nature of our said Invention, and
in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement (that is to say) :—
This Invention relates to looms for weaving fancy fabrics, and consists
in improved arrangements of mechanism for working the healds to open
and close the shed according to the required pattern or design. The
healds are connected at the top and bottom to jacks or levers worked
by hooked bars moved up and down, their motions being regulated by a
pattern barrel or by pattern metal cards.
The manner in which this Invention is to be performed will be clearly
understood by the following particular description thereof, reference
being had to the figures and letters on the accompanying two Sheets of
Drawings, in which Figs. 1 and 2, Sheet 1, are front and end clevations
representing a general arrangement of our improvements, and Figs. 3, 4,
5, and 6, are various views of the improvements drawn more complete
and to an enlarged scale.
In Sheet 1, a represents the ordinary end frames of a loom; b, the
breast beam.
the
ank shaft. I the Jannot shaft.
the w

page_text: "
I
arms; the yarn beam, and the cloth beam. The top staves or shafts
of the healds h, Sheets 1 and 2, are connected by cords i to quadrant
levers or doublo jacks k, and the bottom staves to ordinary balance
levers, the quadrant levers being connected by wires or cords m to one
set of upright bars a, having hooks or projections o at their upper ends,
and the balance levers are connected by wires p and chains y to
another set of upright bars also having hooks or projections at the
upper ends, the chains 7 passing over the guide pulleys. The hooks
are caught according to the required pattern by knives a, v, on a cross
bar w, which slides up and down in slots in the small side frames y,
and both sets of upright bars at their lower ends are acted upon alter-
nately by a sliding plate a'. The said bars are passed through slots in
rods b', and both sets of hooks are moved horizontally to and fro one
way by springs c', and the other way by pattern metal cards & having
intermittent travelling motion. The cross bar to carrying the knives is
linked to arms f³, fixed to the shaft g', to which is fixed the lever h';
Figs. 1, 2, and 3, connected by the rod ¹ to a crank on the crank
shaft c of the loom, and as the crank revolves the arms, bar, and knives
are moved up and down, and as the sliding plate a' is connected to the
arms by the chains and rods m', it also moves up and down,
but in an opposite direction to the knives. The sliding plate a' raises
both sets of hooks above the knives, and the springs place the set of
hooks & over the knife u unless prevented by the pattern cards d which
in that case place the hooks o over the knife ʊ, and at the same timo
they remove the hooks a from the knife, and as the hooked bars n are
employed for raising the healds and the other hooked bars 7 for lowering
them the shed is opened and closed with great certainty and steadiness,
and the loom can be worked at a very high speed. The pattern cards
are worked by an ordinary barrel o', placed on a shaft p' in a vibrating
frame g to which we give motion by a cam », Figs. 3 and 4, on a
countershaft 8', having revolving motion imparted to it by the shaft (,
and gearing from the tappet shaft of the loom; or motion may be
given to it by an endless chain worked by a chain wheel on the crank
or tappet shafts, and to give intermittent revolving motion to the barrel
to advance the cards as required we cause pins or nogs w¹ on a disc ',
fixed to the countershaft &' to act on pins or nogs ¹, on a disc a³ fixed
t the barrel shaft p', and as positive motion is given to the counter-
shaft by the gearing or endless chain, and the cam 7 gives positive and
uniform motion to the vibrating frame q', it follows that if the motions
8

page_text: of the loom are reversed and again turned forward the pattern cards or
pattern barrel will always be in the right place.
Having now described the nature and particulars of our said Invention
and the manner in which the same is to be performed, we desire it to be
understood, that in looms used for weaving fancy fabrics, we claim the
cam 7¹ and countershaft 8', worked by toothed gearing or an endless
chain from the tappet or crank shafts of the loom, and also the general
arrangement and combination of the hooked bars, the sliding plate, and
the vibrating frame as shewn and described.
In witness whercof, I, the said James Hargreaves, for and on
behalf of myself and the said William Henry Glover, have here-
unto set my hand and seal, this Eighteenth day of August, One
thousand eight hundred and seventy-one.
Signed, sealed, and delivered
by the within-named James
Hargreaves in the presence
of
G. SEPTIMUS Hughes,
JAMES HARGREAVES. (L.S.)
Patent Agent,
Manchester.