IMPROVEMENTS IN LOOMS FOR WEAVING
Year: 1871

page_text: LETTERS PATENT to John Dodgcon, Commission Agent, and Bolton
Baldwin, Spindle Manufacturer, both of Burnley, in the County of
Lancaster, for the Invention of "IMPROVEMENTS IN LOOMS FOR
WEAVING."
Sealed the 26th February 1872, and dated the 1st September 1871.
PROVISIONAL SPECIFICATION left by the said John Dodgeon and
Bolton Baldwin at the Office of the Commissioners of Patents, with
their Petition, on the 1st September 1871.
We, JOHN DODGEON, Commission Agent, and BOLTON BALDWIN,
Spindle Manufacturer, both of Burnley, in the County of Lancaster, do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN
LOOMS FOR WEAVING," to be as follows:-
This Invention relates to the weighing or "letting off" motion of
looms, as described in the Specification of Letters Patent granted to the
said John Dodgeon and one William Atkinson, dated the 11th day of
August 1870, and numbered 2232. In the Specification referred to is
described the use or employment of a friction pulley-and of spur wheels,

page_text: one on the friction pulley shaft, the other on a short shaft connected
with and in continuation of the warp beam.
In constructing looms according to this our Invention we dispense
with the gear wheels, and mount on the shaft connected with the warp
beam a pulley. A second pulley is attached by stud to the weight 6
lever; one end of a cord or chain is attached to the frame of the loom,
and such cord or chain is passed or coiled around the pulley mounted on
the short shaft, passing thence around or underneath the pulley attached
to the weight lever forward to and around a pulley mounted on the neck
of the warp beam, the termination of the cord or chain being attached to 1
oné end of a spring, the other end of said spring being secured to the
cross rail of the loom.
The second part of our Invention consists in the employment of a
bell-crank lever-connected with the drop rod and with the "concussion"
break, so as to dispense with the ordinary "weft break." The said lever
works on a stud at the crank or clbow as fulcrum. The horizontal arm
of the lever is connected with the drop rod. To the upright arm of the
said lever, which is attached to the break, is a rod (the end of which is
provided with a slot hole); the other end of the rod being connected with
the frog, whereby the break may be applied without throwing pressure
on the frog, and the weft break is dispensed with.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Dodgeon and Bolton Baldwin in the Great
Seal Patent Office on the 1st March 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, wc, JOHN 2
DODGEON, Commission Agent, and BOLTON BALDWIN, Spindle Manu-
facturer, both of Burnley, in the County of Lancaster, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the First day of September, in the year
of our Lord One thousand eight hundred,and seventy-one, in the thirty-
fifth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto us, the said John Dodgeon and Bolton Baldwin, Her
special licence, that we, the said John Dodgeon and Bolton Baldwin, our
excoutors, administrators, and assigns, or such others as we, the said

page_text: John Dodgeon and Bolton Baldwin, 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, use, 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 tho condition (amongst others) that we, the said John Dodgcon
and Bolton Baldwin, our executors or administrators, by an instrument
in writing under our, or their, or one of 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 John Dodgeon and Bolton Baldwin,
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 and accompanying Sheet of Drawings
(that is to say):—–
This Invention relates to the weighting or "letting off" motion,
as described in the Specification of Letters Patent granted to the
said John Dodgeon and one William Atkinson, dated the 11th day of
August 1870, and numbered 2232. In the Specification referred to is
described the use or employment of a friction pulley and two spur or
gear wheels, one wheel being on the friction pulley shaft, and the
other on a short shaft connected with and in continuation of the warp
beam.
In constructing looms according to this our present Invention we
dispense with the gear wheels, and mount on the shaft connected with
the warp beam a pulley, and a second pulley is attached by stud to the
> weight lever, or a lever in connection therewith; also one end of a cord
or chain is attached to the frame of the loom, and such cord or chain is
passed or coiled around the pulley mounted on the short shaft, passing
thence around or underneath the pulley attached to the weight .lever,
thence forward to and around another pulley mounted on the said shaft,
5 and formed to receive and carry the neck of the warp beam, the termi-
nation or other end of the cord or chain being attached to one end of a
spring or pin secured to the cross rail of the loom.
•

page_text: The second part of our Invention consists in the employment of a
bell-crank lever connected with the drop rod and with the concussion
break, so as to dispense with the ordinary weft break. The said lover
works on a stud fixed to the loom end, and the horizontal arm of which
is connected with the drop rod, and the upright arm is attached to or
capable to actuate the break rod, one end of which rod is provided with
a slot hole and connected to the frog, and the other end is connected
to the break as usual, whereby the break may be applied without
throwing pressure upon or moving the frog, and the weft break is
dispensed with.
In order that this Invention may be clearly understood we herein
give reference to an accompanying Sheet of Drawings of such parts of
an ordinary loom as will enable us to shew the application of our
improvements thereto.
Fig. 1 is an end elevation; Fig. 2 is a portion of the back elevation,
and Fig. 3 is a detail of same shewing a modification.
A is the short shaft which is in continuation of the warp beam
supported in a bearing of the loom frame. B is the pulley mounted and
keyed on said shaft. C is the pulley mounted on a stud attached to a
lever D in connection with the weighted lever D¹, which lever D is:
hinged to a bracket fixed on the loom end. E is a cord or chain
attached to a hook on the bracket, and which passes three times around
the pulley B, then around the pulley C, then three times around the
pulley G, which is cast or fixed on the shaft A, and made hollow or
recessed to receive the neck or end of the beam H; the said cord or 2
chain is then attached to a spring I fixed to the cross rail J, or it may
be attached to a pin K fixed in the said rail. The two levers arc con-
nected by a link or shackle D³, which may be changed in position on
tho said levers so as to obtain more or less leverage, as will be readily
understood. The end or neck of the beam H fits into the recess of the a
pulley G, and in which are a series of pins fitting into corresponding
holes in the end of the beam by which the beam is driven or turned, but
a square or other formed projection may be made within the recess, and
the beam ends made to fit the same for the purpose of driving. Fig. 3
shews a modification in the construction and arrangement of the levers 3
wherein the pulley C is mounted on a stud fixed in one arm of a bell-
crank lever D, which works on a stud fixed in the cross rail J, the
•

page_text: other arm-
n-being. connected by a rod D! to the weighted lever. D³,
which is also a bell-crank lever, and works on a stud fixed to the cross
rail.
The second part is shewn in Fig. 1, where M is the bell-crank lever
working on a stud fixed into the loom end at M', the horizontal arm
being connected to the ordinary drop rod N, and on. which is. an
adjustable weight O; the other or upright arm is placed so as to act on
a stud fixed in the ordinary break or connecting rod P, which connects
the frog Q with the concussion break R; but in this case we form a slot
hole in one end of the said rod as shewn at the frog end, so that when
the weft fork operates upon the drop rod or causes it to drop the
weighted bell-crank lever M operates upon the rod P, and applies or
places the concussion break in contact with the break wheel S, and that
without throwing any pressure upon or moving the frog. Thus by this
part of our Invention we dispense with the ordinary weft break and
enable the concussion break to act either in case of the weft breaking
.or of the shuttle stopping in the shed.
Having thus described the nature and shewn in what manner this
Invention is or may be put into practice, we would state in conclusion
that we do not confine ourselves to the precise details, but claim,-
Firstly. The method and means of weighting the warp beam,
substantially as shewn and described.
Secondly. Adapting or arranging the concussion break to act also
for the weft break by forming a slot hole in the connecting rod, as
shewn and described.
In witness whereof, I, the said John Dodgeon, for and on behalf
of myself and the said Bolton Baldwin, have hereunto set my
hand and seal, this Twenty-seventh day of February, in the year
hand
-
Firstly. The method and means of weighting the warp beam,
substantially as shewn and described.
Secondly. Adapting or arranging the concussion break to act also
for the weft break by forming a slot hole in the connecting rod, as
shewn and described.
In witness whereof, I, the said John Dodgeon, for and on behalf
of myself and the said Bolton Baldwin, have hereunto set my
hand and seal, this Twenty-seventh day of February, in the year
of our Lord One thousand eight hundred and seventy two.
30 Witness,
WALTER BRIERLEY,
Tasker & Brierley,
Halifax & Bradford.
JOHN DODGEON. (L.S.)