IMPROVEMENTS IN MACHINERY FOR WEAVING AND FOLDING CLOTH
Year: 1875

page_text: LETTERS PATENT to William Henry Hacking and Thomas Hacking,
both of Bury, in the County of Lancaster, Machine Makers, for
the Invention of "IMPROVEMENTS IN MACHINERY FOR WEAVING AND
FOLDING CLOTH."
Sealed the 6th October 1875, and dated the 5th May 1875.
PROVISIONAL SPECIFICATION left by the said William Henry Hacking
and Thomas Hacking at the Office of the Commissioners of Patents,
with their Petition, on the 5th May 1875.
We, WILLIAM HENRY HACKING and THOMAS HACKING, both of Bury,
in the County of Lancaster, Machine Makers, do hereby declare the
nature of the said Invention for "IMPROVEMENTS IN MACHINERY FOR WEAVING
AND FOLDING CLOTH," to be as follows:—
In place of the usual round bush or block fitting into a circular
recess bored in the loom side used in certain looms to carry the crank
shaft we employ a square bush or block fitting into a square recess in

page_text: the loom side, which has the advantage of giving greater steadiness and
solidity to the crank shaft.
In the crank shaft picking motion instead of a shifting striker or
loose tongue picking shaft we employ a cam to turn the picking shaft
tongue out of the way of the striker for the purpose of obtaining the
pick alternately from each side. The cam is carried on a second motion
shaft driven by suitable wheels. In folding the cloth we also use a cam
fixed on the crank shaft, which by means of square rods and chains
draws down the table alternately at each side as the cloth is being
folded. We also employ a pair of draw rollers driven at a variable
speed by means of a friction plate and bowl to draw the cloth as
required.
SPECIFICATION in pursuance of the conditions of the Letters Patent
filed by the said William Henry Hacking and Thomas Hacking
in the Great Seal Patent Office on the 4th November 1875.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, WILLIAM
HENRY HACKING and THOMAS HACKING, both of Bury, in the County
of Lancaster, Machine Makers, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fifth day of May, in the year of our
Lord One thousand eight hundred and seventy-five, in the thirty-eighth
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto us, the said William Henry Hacking and Thomas Hacking,
Her special licence that we, the said William Henry Hacking and
Thomas Hacking, our executors, administrators, and assigns, or such
others as we, the said William Henry Hacking and Thomas Hacking,
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 MACHINERY FOR WEAVING AND FOLDING CLOTH," upon the
condition (amongst others) that we, the said William Henry Hacking
and Thomas Hacking, our executors or administrators, by an instrument

page_text: 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 Hacking and
Thomas Hacking, 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) :-
The nature of our Invention consists, first, in an improved picking
motion for looms for weaving; and secondly, in an improved relieving
motion for cloth folding machines.
Our improved picking motion is illustrated in Figs. 1, 2, and 3, of the
accompanying Sheet of Drawings. Fig. 1, being an end clevation of a
portion of a loom with our improved picking motion attached; Fig. 2,
a section; and Fig. 3, a plan of the same. In each Figure the same
letters refer to the same parts.
A, A, represent the strikers on the fly wheel of the crank shaft; B, B,.
the tongues of the picking shafts on the parts struck; C, C, are bowls
revolving on studs fixed to the picking shafts D, D; E, E, are cams fixed
on the tappet shaft F, driven by wheels G, G, one having twice the
number of teeth as the other. The cams E, E, in their revolution work
against the bowls C, C, and cause the picking shafts D, D, to oscillate
until the tongues B, B, are lifted out of the way of the strikers A, A.
The cams E, E, are set opposite to one another on the shaft F, so that
while the cam at one extremity of the shaft is operating on one of the
bowls C, the cam at the other extremity of the shaft is at its greatest
distance from the other bowl C.
In Figs. 2 and 3 the side X shews the cam lifting the tongue B out
of the way of the striker A, and the side O shews the cam out of contact
with the bowl C, and the striker A about to strike the tongue B: By
means of the mechanism thus described it is apparent that as the crank
shaft H revolves, the picking shafts on each side of the loom will
alternately receive the pick or impact of the striker A,.A. The spring

page_text: I is for the purpose of bringing the picking shaft back to its original
position after it has been acted on by the cam E.
Our improved relieving motion for cloth folding machines is shewn
in Figs. 4 and 5.
In Fig. 4 parts of an ordinary cloth folding machine are shewn, to
which our improvements are applied.
Fig. 5 represents a portion of a folding machine having a table which
descends very low, also with our improvements applied. In each Figure
the same letters refer to the same parts:
a, a¹, represents the table on which the cloth is folded in the usual
way; b, b, and 61, 61, are two chains which are each connected at one
end to one of the two sliding bars c and c¹. These chains after passing
over the guide pulleys d, d, pass round two pulleys e and e¹, attached
to the end of the table a, a', and from thence the chains pass over the
guide pulleysf, f, to the weighting pulley and shaft g, g', to which they
are fastened. At one end of the sliding bars c and c¹, are fixed two
segments and k¹, which are acted upon by the bowl h, carried by the
arm i, attached to the crank shaft j. As the crank shaft j revolves it
carries round the bowl h, and brings it into contact alternately with the
segments k and ², by which means the sliding bars c and c¹ are
alternately forced in contrary directions. As the sliding bars move
they draw the chains 6 and b¹ with them, and pull down the table a, a¹,
by means of the pulleys e and e¹. The loose chain which would accu-
mulate as the cloth is folded and the table descends is taken up by the
weighting pulley and shaft g, g', so that the chain is preserved at a
uniform tension whatever length the piece may be that is plaited.
Having now described the nature of our Invention, and a method of
carrying the same into practical effect, we wish to observe that we do
not confine ourselves to the exact details described, as various modi-
fications of the same Invention may be adopted, but what we claim as
novel is,―
First. The picking motion for looms for weaving as described, with
picking shaft made to oscillate out of the way of the striker by means
of a cam, or a lever, or any modification of the same.
And, Secondly. The relieving motion for cloth folding machines, as
described, having the table on which the cloth is folded operated upon

page_text: by means of a cam or eccentric placed on the crank shaft, or any mere
modification of the same.
In witness whereof, we, the said William Henry Hacking and
Thomas Hacking, have hereto set our hands and seals, this
Second day of November, One thousand eight hundred and
seventy-five.
WILLIAM HY. HACKING. (L.S.)
THOMAS HACKING.
(L.S.)