IMPROVEMENTS IN LOOMS FOR WEAVING AND IN APPARATUS CONNECTED THEREWITH
Year: 1877

page_text: LETTERS PATENT to John Sharp, Pattern Maker, Charles Hahlo and Charles
Edward Licbreich, Merchants, all three of Bradford, in the County of York,
for the Invention of IMPROVEMENTS IN LOOMS FOR WEAVING AND IN
APPARATUS CONNECTED THEREWITH."
"
Sealed the 12th April 1878, and dated the 30th October 1877.
PROVISIONAL SPECIFICATION left by the said John Sharp, Charles Hahlo,
and Charles Edward Liebreich at the Office of the Commissioners of Patents
on the 30th October 1877.
JOHN SHARP, Pattern Maker, CHARLES HAHLO, and CHARLES EDWARD LIEBREICH,
"IMPROVEMENTS IN
Merchants, all three of Bradford, in the County of York.
LOOMS FOR WEAVING AND IN APPARATUS CONNECTED THEREWITH."
Our Invention relates to employing an improved apparatus for the purpose of
delivering the warps at any required pressure or tension, thereby dispensing with
the setting up and facilitating the pulling back; preventing the warps stretching or
twisting; producing an even fabric; also in giving a rocking or oscillating move-
ment to the warp beam to ease the warps when shedding, and give full tension to
the warps after the passing of the shuttle. For this purpose we fit on the warp
beam end or ends cast-iron bushes; on the bush we fit a top and bottom shoe or
break lined with leather. The bottom shoe is secured to the loom frame; the back
part is formed with a projecting lug made with a slot hole; the front of this
bottom shoe is made with a projecting plate, having a boss formed thereon. Near
the bottom of the boss is cast a stay connecting the boss to the under side of the
bottom shoe, leaving an opening between the stay and bottom of the projecting
plate.
The top shoe is formed at the back with a lug, which fits the slot hole of the
projecting lug of the bottom shoe. The shoe fits over the tops of the warp beam
bush, and is formed on the front end with a projecting plate to fit over the bottom
shoe projecting plate. In the top shoe projecting plate is fitted a stud which passes

page_text: in an opening or-hole formed in the projecting plate of the bottom shoe and through
the projecting plate of the top shoe, and in front of the stud is passed a rod which
screws in the boss of the bottom shoe projecting plate. On the top of the top shoe
plate and over the rod is fitted a strong spiral spring; this spring is kept in position
by a collar or washer formed or fitted near the top of the rod.
When the warps are wound on the warp beam, the top shoe is pressed on the
warp beam bush by screwing in the rod in the boss by means of a key made to fit
a square end formed on the top of the rod. When the required pressure or tension
is placed on the warps, a lock pin fitted in the bottom of the boss is screwed up,
preventing the pressure or tension being taken off. In screwing in the rod the
required pressure or tension is given by forcing in the spring, and the stud fitted
under the projecting plate enters the opening or hole formed in the projecting plate
of the bottom shoe; the stud passes slightly through the plate.
To facilitate the pulling back when the warps become deranged a hooked lever is
employed; and by passing the hooked end in the opening formed between the pro-
jecting plate of the bottom shoe and stay, and lifting the lever, the hooked end acts
on the end of the stud, lifting the stud, removing the pressure or tension from the
warps. When the pulling back is finished the lever is lowered and removed, giving
the same pressure or tension on the warp beam as before.
To ease the warps when shedding we fit on the tappet or top shaft of the loom a
tappet, cam, or eccentric, which actuates a lever, the end of which is fitted on a pin
or stud fitted to the bottom shoe. The lever gives a rocking or oscillating move-
ment to the warp beam, easing the warps when shedding, and giving the full pressure
or tension to the warps after the passing of the shuttle."

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said John Sharp, Charles Hahlo, and Charles Edward Liebreich in the
Great Seal Patent Office on the 27th April 1878.
"
JOHN SHARP, Pattern Maker, CHARLES HAHLO, and CHARLES EDWARD LIEBREICH,
Merchants, all three of Bradford, in the County of York. IMPROVEMENTS IN
LOOMS FOR WEAVING, AND IN APPARATUS CONNECTED THEREWITH.” ·
The said Invention relates to employing an improved apparatus for the purpose
of delivering the warps at any required pressure or tension, producing an even
fabric; also in giving a rocking or oscillating movement to the warp beam to ease.
the warps when shedding, and to give full tension to the warps after the passing of
the shuttle. For this purpose we fit on the warp beam end or ends cast-iron bushes;
on the bush we fit a top and bottom shoe or break lined with leather or cloth. The
bottom shoe is secured to the loom frame by a stud, and is made at the back with
a projecting lug, in which is a slot hole; the front of the shoe is made with a pro-
jecting plate having a boss formed thereon. Near the bottom of the boss is cast
a stay connecting the boss to the under side of the shoe, leaving an opening between
the stay and bottom of the projecting plate.
The top shoe is formed at the back with a lug which fits the slot hole of the
projecting lug of the bottom shoe. The shoe fits over the top of the warp beam
bush; the shoe is formed on the front with a projecting plate to fit over the bottom
shoe projecting plate. In the projecting plate of the top shoe is fitted a stud which
passes in an opening or hole formed in the projecting plate of the bottom shoe.
In front of the stud is a rod which screws in the boss of the projecting plate of the
bottom shoe, and over the rod is fitted a strong spiral spring which is kept in position
by a collar or washer formed or fitted near the top of the rod.
When the warps are wound on the warp beam, the top shoe is pressed on the
warp beam bush by screwing the rod in the boss by means of a key made to fit a
square end formed on the top of the rod. When the required pressure or tension is
placed on the warps, a lock pin fitted.in the boss is screwed up, preventing the
pressure or tension being taken off. In screwing in the rod the required pressure or
tension is given by forcing in the spring, and the stud enters the hole or opening of
the bottom shoe projecting plate.
To facilitate the pulling back when the warps become deranged a hooked lever is
employed; and by passing the hooked end in the opening formed between the pro-
jecting plate of the bottom shoe and stay, and by lifting the lever, the hooked end
acts on the end of the stud, lifting the stud, and removing the pressure or tension
from the warps.
When the pulling back is finished the lever is lowered and
removed, and the same pressure or tension is placed on the warps as before.
To ease the warps when shedding we fit on the tappet or crank shaft of the loom
a tappet, cam, or excentric, which actuates a cranked lever. The top part of this
cranked lever comes in contact with a projection formed on the end of the projecting
lug of the bottom shoe, giving a rocking or oscillating movement to the warp beam,
easing the warps when shedding, and giving the full pressure or tension to the warps
after the passing of the shuttle; or we fit a connecting rod on the sword or swing
rail of the loom which gives a rocking or oscillating movement to the warp beam.
But in order to enable our improvements to be better understood we will proceed
to more particularly describe the same by reference to the accompanying Drawing, in
which,―
Figure 1 represents a side elvevation of improved warp beam apparatus; and
Figure 2 front elevation of the same.
Figure 3 represents a side elevation of apparatus with rocking gear actuated by
the sword of the loom.
Similar letters of reference are used to represent similar parts.
On the warn beam A we fit a cast-iron bush B. over which are fitted shoes C

page_text: and D, which are lined with leather or cloth E; the shoe C is secured to the loom
frame F by a stud G. This shoe is made with a projecting lug H, having a slot hole,
and the front of the shoe is made with a plate I having a boss J, which is connected
to the shoe by a stay K; leaving an opening L. The top shoe D is formed with a
lug M, which passes through the slot hole of the projecting lug H; the shoe D is
also made with a plate N, on which is cast a stud O, which passes in a hole made
in the plate I. In the top plate N passes a rod P which screws in the boss J ;
over the rod P is fitted a strong spiral spring Q, which is kept in position by a collar
or washer R.
When the warps are wound on the warp beam A, the shoes C and D are pressed on
the beam bush B by screwing the rod P in the boss J by means of a key being fitted
on the square end S. The required pressure or tension is given by the spiral spring Q
being forced down; and to prevent the pressure or tension being removed, a lock
pin T is screwed in the boss J, which screws up to the screwed end of the rod P.
When the spiral spring Qis pressed down, the stud O passes in the hole of the
plate I, slightly passing the bottom of the plate; and to facilitate the pulling back
when the warps become deranged, a lever U having a hook V is employed to remove
the pressure on the warps; the hook is passed in the opening L, and over the stay K,
and by lifting the lever the hooked end presses on the stud O, lifting the stud
which removes the pressure from the warps. When the pulling back is finished the
lever U is lowered, and if desired removed, and the same tension or pressure on the
warps is given as before.
To ease the warps when shedding we fit on the tappet shaft W a tappet X (but
we may employ a cam or an excentric); the tappet actuates a cranked lever Y;
this lever works on a stud Z fitted in a bracket A' which is bolted to the loom
frame. The top arm B¹ of the cranked lever Y acts on a projecting piece C¹ cast
on the end of the projecting lug H, lifting it, giving a rocking or oscillating move-
ment to the warp beam A. The bottom shoe C is made with a bracket D¹, in which
is cast or formed a slot hole E¹, in which is secured a stud G, which is fixed to the
loom frame. The warp beam and shoes or break, rock or oscillate on the stud G;
or we may fit on the stud G a connecting rod G³, which is secured to a link H¹.
The link works on a rod I', which is fitted in bearings J¹, bolted to the sword K¹ of
the loom; the connecting rod being actuated by the sword, gives a rocking or
oscillating movement to the warp beam, easing the warps when shedding.
Having thus described our improvements, and the best means we are acquainted
with for carrying the same into effect, we would have it understood that we do not
confine ourselves to the precise details shewn and described, as they may be varied
without departing from the peculiar character of the Invention, but what we do
'claim is, the general arrangement, construction, and employment of apparatus for
delivering the warps at any required tension or pressure, and the easing of the
warps when shedding, substantially as herein-before described, and represented by
the accompanying Drawing.
In witness whereof, I, the said John, Sharp, for and on behalf of myself and
the said Charles Hahlo and Charles Edward Liebreich, have hereunto set
my hand and seal, this Twenty-fifth day of April, in the year of. our Lord
One thousand eight hundred and seventy-eight.
Witness,
WALTER JAS. TURNER, C.E.,
Patent Agent,
-
Bradford.
JOHN SHARP. (L.S.)