IMPROVEMENTS IN LOOMS FOR WEAVING
Year: 1868

page_text: LETTERS PATENT to William Pearson and William Spurr, of Birstal,
in the County of York, Engineers, Millwrights, and Machine
Makers, and Hervey Bradbury, of the same Place, Loom Tuner, for
the Invention of "IMPROVEMENTS IN LOOMS FOR WEAVING."
Sealed the 5th February 1869, and dated the 6th August 1868.
PROVISIONAL SPECIFICATION left by the said William Pearson,
William Spurr, and Hervey Bradbury, at the Office of the
Commissioners of Patents, with their Petition, on the 6th August
1868.
We, WILLIAM PEARSON and WILLIAM SPURR, of Birstal, in the
County of York, Engineers, Millwrights, and Machine Makers, and
HERVEY BRADBURY, of the same Place, Loom Tuner, do hereby declare
the nature of the said Invention for "IMPROVEMENTS IN LOOMS FOR
WEAVING," to be as follows:-
This Invention relates to self-acting means of working the rising boxes
or change shuttle boxes employed in looms for weaving fabrics, for
which jacquard or other indicating apparatus is used to select the

page_text: different colors or kinds of weft required, and consists in the construction,
application, an arrangement of apparatus whereby the said indicating
or governing apparatus may be readily "lagged back," reversed, or
altered at any time without altering or otherwise moving any of the
other parts of the loom.
In one arrangement for this purpose we employ the well-known star
wheel, intermittent motion to which is given from or by the crank
shaft and the usual nogging plate gearing. To the star wheel we
fix a barrel, on the surface of which are arranged a series of slidable
tappets equal in number to the number of points, places, or notches
in the star wheel. These tappets are formed in steps or different lifts,
two, three, or more, according to the number of change boxes used, and
are arranged under the box lever, so that as the star wheel rotates
(intermittently) the said tappets may be placed in suitable position for
contact with the friction roller of the said lever, and thereby cause it
to operate the boxes. The jacquard apparatus, or peg lags, or other
indicating apparatus, are arranged to operate upon these tappets by
means of levers and rods, so as to slide the said tappets into proper
position as required for contact with the box levers.
In another arrangement the barrel (with the slidable tappets) is fixed
to a ratchet wheel operated by a hook or catch attached to an eccentric
fixed on the crank shaft of the loom for producing the intermittent
rotation thereof, so as to actuate the boxes as required. By these means
the jacquard or peg lag cylinder is capable of being turned or "lagged
back" without interfering with the other parts of the loom.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Pearson, William Spurr, and Hervey
Bradbury, in the Great Seal Patent Office on the 6th February
1869.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, WILLIAM
PEARSON and WILLIAM SPURR, of Birstall, in the County of York,
Engineers, Millwrights, and Machine Makers, and HERVEY BRADBURY,
of the same Place, Loom Tuner, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Sixth day of August, in the year

page_text: of our Lord One thousand eight hundred and sixty-eight, in the thirty-
second year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto us, the said William Pearson, William Spurr,
and Hervey Bradbury, Her special licence that we, the said William
Pearson, William Spurr, and Hervey Bradbury, our executors, adminis-
trators, and assigns, or such others as we, the said William Pearson,
William Spurr, and Hervey Bradbury, 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 the condition (amongst others) that we, the said William
Pearson, William Spurr, and Hervey Bradbury, 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 William Pearson, William
Spurr, and Hervey Bradbury, 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 Sheets of Drawings (that is to say) :-
This Invention relates to self-acting means of working the rising
boxes or change shuttle boxes employed in looms for weaving fabrics for
which jacquard or other indicating apparatus is used to select the
different colours or kinds of weft required; and consists in the con-
struction, application, and arrangement of apparatus, whereby the said
indicating or governing apparatus may be readily "lagged back,"
reversed, or altered at any time without altering or otherwise moving
any of the other parts of the loom.
In one arrangement for this purpose we employ the well-known
star wheel, intermittent motion to which is given from or by the
crank shaft and the usual nogging plate gearing. To the star wheel
we fix a barrel, on the surface of which are arranged a series of

page_text: slidable tappets equal in number to the number of points, places, or
notches in the star wheel. These tappets are formed in steps or different
lifts, two, three, or more, according to the number of change boxes used,
and are arranged under the box levers, so that as the star wheel rotates
(intermittently) the said tappets may be placed in suitable position for
contact with the friction roller of the said lever, and thereby cause it
to operate the boxes. The jacquard apparatus or peg lags, or other
indicating apparatus, are arranged to operate upon these tappets by
means of levers and rods, so as to slide the said tappets into proper
position as required for contact with the box levers.
In order that this Invention may be clearly understood we herein
give reference to two accompanying Sheets of Drawings of an ordinary
1:1

page_text: and placed in position for contact with the friction roller of the said
lever, and be operated accordingly as the barrel rotates (intermittently).
Thus, if the friction roller rest upon the bed of the tappet, which is sunk
into the barrel even with its surface, the uppermost of the rising boxes
will be placed in line with the shuttle race, and if the first step, or lesser
of the two, be placed in position the middle box will be placed in line
with the shuttle race; and, in like manner, if the large step be in.
position for the roller the bottom box will be raised into line with the
shuttle race. These tappets are operated by a chain of peg lags M
carried on a small cylinder M' fixed on the end of the shaft carrying the
ordinary jacquard cylinder N; the pegs are of two different lengths, and
actuate a lever P, to which is attached a rod Q connected to another
lever R, the bottom end of which is arranged to be opposite one of
the tappets at the resting place of the barrel, by preference immediately
before the said tappet is moved under the friction roller, when if one
of the pegs M be in position it will act on the lever N according to the
length thereof, and thereby place one or other of the steps of the tappet
in position for contact with the roller, or if there be no peg present
then both of the steps will be placed out of position or not in position
for contact with the friction roller; S is a lever hinged on the stud
which carries the nogging plate, and is operated by a cam groove T
fixed on the crank shaft, which pushes the tappets back ready to be
acted upon by the lever R. The boxes will thereby be operated and
placed in line with the shuttle race according to arrangement of the
said pegs, as will be readily understood by all who are conversant with
rising boxes or change shuttle boxes. The rods U attached to the
lever V communicates motion to a set of rising boxes at the other end
of the loom in like manner as herein-before described, pegs being
suitably arranged in the lags for that purpose.
Having thus described the nature of the said Invention, and shewn
by Drawings how the same is to be or may be performed or carried
into practical operation, we would have it understood that we do not
confine ourselves to the precise details of construction or arrangement
of apparatus, as various modifications may be made therein; but what
we claim as of our Invention is, the construction, application, and use
of slidable tappets operating in combination with ordinary peg lags or
other suitable indicating apparatus for working rising boxes or change

page_text: uttle boxes in looms for weaving, substantially as shewn and
scribed.
In witness whereof, I, the said William Pearson, for and on
behalf of myself and the said William Spurr and Hervey Bradbury,
have hereunto set my hand and seal, this Fourth day of February,
in the year of our Lord One thousand eight hundred and sixty-
nine
Signed, sealed, and delivered
by the within-named William
Pearson in the presence of
W*. TASKER,
Patent Agent,
WILLIAM PEARSON. (L.S.)
Halifax & Bradford.