IMPROVEMENTS IN LOOMS FOR W PROVISIONAL SPECIFICATION
Year: 1883

page_text: LETTERS PATENT to Thomas Lonsdale of Blackburn in the County of
Lancaster Mill Manager for an Invention of "IMPROVEMENTS IN LOOMS FOR
W
PROVISIONAL SPECIFICATION left by the said Thomas Lonsdale at the
Office of the Commissioners of Patents on the 29th January 1883.
THOMAS LONSDALE of Blackburn in the County of Lancaster, Mill Manager
"IMPROVEMENTS IN LOOMS FOR WEAVING
"
This invention consists of an improved combination of compound weighting
levers and apparatus for controlling the letting off the warp from the warp beam.
Apparatus for purpose aforesaid constructed according to this my invention
comprises a regulator suspended from the back bearer one part of the regulator
rests upon and against the warp its lower end being connected by a rope or chain
passing through guides a sliding weight mounted upon inclined lever having its
fulcrum in a slotted bracket pendant from back bottom rail, a second lever having
its fulcrum near the side frame of the loom extends to and is connected with the
lever first referred to by a pin near its loose end which passes through a slot in the
first lever, the pin just referred to is adjustable in its slot so as to bring it nearer
to or further from the fulcrums of the compound levers. The weighting rope or
chain after passing round the neck of the beam is held by a clip and screw
adjustment.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Thomas Lonsdale in the Great Seal Patent Office on the
27th July 1883.
THOMAS LONSDALE of Blackburn in the County of Lancaster, Mill Manager
"IMPROVEMENTS IN LOOMS FOR WEAVING
,,
This invention consists of an improved combination of compound weighting
levers and Apparatus for controlling the letting off the warp from the Warp beam.
[Price 4d1

page_text: •
Apparatus for purpose aforesaid constructed according to this my invention
comprises a regulator suspended from the back bearer one part of the regulator
rests upon and against the warp its lower end being connected by a rope or chain
(passing through guides) to a sliding weight mounted upon an inclined lever
having its fulcrum in a slotted bracket pendant from back bottom rail, a second
lever having its fulcrum near the side frame of the loom extends to and is connected
with the lever first referred to by a pin near its loose end which passes through a
slot in the first lever, the pin just referred to is adjustable in its slot so as to bring
it nearer to or further from the fulcrums of the compound levers. The weighting
rope or chain after passing round the neck of the beam is held by clip and screw
adjustment.
Such being the nature and object of this my said invention in order that the
same may be fully understood I have hereunto annexed a sheet of drawings
illustrative thereof in which
Fig. 1 is an elevation of the back of a loom having my improved apparatus
applied thereto.
Fig. 2 is an end elevation in section
Figs. 3. 4. 5. 6. 7 are views of details or parts detached so as clearly to shew the
construction thereof.
At 1 is a regulator suspended from the back bearer at 2-the part 3 of the
regulator rests against the warp 4 and its lower end is connected by a rope 5
passed through guides 6 to the weight 7 mounted upon and capable of sliding
along the lever 8-At 9 is the fulcrum of lever 8 attached to the slotted bracket 10,
a second lever 11 having its fulcrum at 12 on an eccentric stud 13 extends to and
is connected to the lever 8 by pin 14 within the slot 15. The pin 14 is adjustable
within the slots of levers 11 and 8 so as to regulate the weight by adjusting the
pin nearer to or further from the fulcrums of the two or compound levers 11
and 8-The weighting rope 16 after being passed around the neck of the beam is
held by the clip 17 having screw adjustment at 18 as shewn applied near the
fulcrum of the lever 11. In some cases in lieu of the pin 14 and slots 15 I employ
the bracket 19 applied to the lever 11 the latter being passed through the eye or
slot 20 and fixed by set screw 21 the lever 8 being received within the looped
end 22 and free to vibrate therein (see Figs. 8 and 9).
Having thus fully described the nature and particulars of this my said invention
together with the manner in which the same is to be performed or carried into
practical effect I would have it understood that what claim as my invention is.
The combination of the slotted and compound levers 11 and 8 with a weighting
appliance such as 7 and 3 and as herein described and illustrated by the annexed
drawings.
In Witness whereof I the said Thomas Lonsdale have hereunto set my hand
and seal this 25th day of July in the year of our Lord one thousand eight
hundred and eighty three.