IMPROVEMENTS IN LOOMS FOR WEAVING
Year: 1870

page_text: LETTERS PATENT to Richard Haworth, of the City of Manchester,
Cotton Spinner, Edwin Woodcock, of Salford, Manager, and Joseph
McCabe, of Salford, Overlooker, all in the County of Lancaster, for
the Invention of "IMPROVEMENTS IN LOOMS FOR WEAVING.”
Sealed the 26th April 1870, and dated the 28th January 1870.
missioners of Patents, with their retition, on The 25th January
1870
We, RICHARD HAWORTH, of the City of Manchester, Cotton Spinner,
EDWIN WOODCOCK, of Salford, Manager, and JOSEPH MCCABE, of
Salford, Overlooker, all in the County of Lancaster, do hereby declare
the nature of the said Invention for "InPROVEMENTS IN Looms For WEAVING,"
to be as follows:-

page_text: the pressure on the shuttle when it enters and leaves the shuttle box
at each end of the slay. Each swell is acted upon by a light spring to
keep it steady, and each swell finger is moved from the swell by a finger
or lever connected to the stop rod, the finger or lever being acted upon
by a double tappet on the tappet shaft of the loom, so that as the crank
advances from the front to the bottom centre the weight of the stop
rod and the pressure of the ordinary springs will be taken off before the
shuttle enters the box. Between the bottom and the back centre the
finger or lever connected to the stop rod is held to keep the swell finger
back by means of a bowl connected to a stationary bracket until the
shuttle leaves one box and enters the box at the opposite end, and thus
the shuttle enters and leaves the boxes without any strain or pressure
upon it, and thereby there is great economy in the wear and tear and
less power required to work the loom.
In another arrangement we employ an eccentric or cam at one от
both ends of the crank shaft for acting on the stop rod and removing
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Richard Haworth, Edwin Woodcock, and Joseph
McCabe in the Great Seal Patent Oflice on the 27th July 1870:
TO ALL TO WHOM THESE PRESENTS SHALL COME, wc, RICHARD
"HAWORTH, of the City of Manchester, Cotton Spinner, EDWIN
"WOODCOCK, of Salford, Manager, and JOSEPH MCCABE, of Salford,
Overlooker, all in the County of Lancaster, send greeting.
'
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-eighth day of January, in the
year of our Lord One thousand eight hundred and seventy, in the
thirty-third year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto us, the said Richard Haworth, Edwin Woodcock,
and Joseph MCabe, Her special license that we, the said Richard
Haworth, Edwin Woodcock, and Joseph McCabe, our executors, ad-
ministrators, and assigns, or such others as we, the said Richard Haworth,.
Edwin Woodcock, and Joseph McCabe, our executors, administrators,
and assigns, "should" at any time agree with, and no others, from time

page_text: 66
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 "IMPROVIMENTS IN LOOMS FOR WEAVING,"
upon the condition, amongst others, that we, the said Richard Haworth,
Edwin Woodcock, and Joseph McCabe, by an instrument in writing
under our hands and seals (or under the hand and seal of one of us)
should particularly describe and ascertain the nature of the said Inven-
tion, 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 Richard Haworth, Edwin Wood-
cock, and Joseph McCabe, 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
thereof, that is to say :—
This Invention relates to the swells, swell fingers, and stop rod of the
loom, and consists in improved mechanical arrangements for taking off
the pressure on the shuttle when it enters and leaves the shuttle box at
each end of the slay. Each swell finger is moved from the swell by a
finger on the stop rod being acted upon by a lever worked by a double
tappet on the tappet shaft of the loom or by a single tappet on the crank
shaft, so that as the crank moves from the front to the back centre, or
other required position the action of the stop rod and the pressure of
the ordinary springs will be taken off the swells, the swell fingers being
kept back until the shuttle leaves one box and enters the box at the
opposite end, and thus the shuttle enters and leaves the boxes without
any unnecessary strain upon it, thereby effecting great economy in the
wear and tear and requiring less power to work the loom.
The manner in which our Invention is to be performed will be clearly
understood by the following particular description thereof, reference being
had to the Figures on the accompanying Sheet of Drawings, and to the
letters of reference marked thereon.
Figs. 1 and 2 are end elevations shewing the application of one
arrangement of our improvements to the different ends of the loom;
Fig. 3, a transverse section shewing the application of a similar arrange-
ment to the middle of the loom; Fig. 4, an end elevation of another

page_text: arrangement to be applied to either end of the loom; and Figs. 5, 6,
and 7 are views of some of the parts detached; Figs. 1, 2, 3, 4, and 5
being drawn to a scale of two inches to the foot, and Figs; 6 and 7
about half size.
|
In Figs. 1, 2, 3, and 4, a represents part of the end frame of the
loom; b, the crank shaft; c, the tappet shaft; d, the sword arms; e, the
slay or lathe; f, the stop rod; g, the stop rod tongue; h,. the swells;
i, the swell fingers, and k, l, the toothed wheels for giving motion to the.
tappet shaft, and one of the swells; one of the swell fingers and part of
the slay are also shewn in the plan Fig. 5. To the stop rod 7, Figs. 1,
2, and 3, is fixed or welded the finger n connected by the rod o to the
lever ? fixed to one end of the shaft ġ working in the bracket P fixed
to the end frame a, Figs. 1 and 2, or to the cross rails, Fig. 3, and to
the other end of the shaft is fixed the lever t, which is acted upon when
the loom is working by tappets u fixed either in the arms of the wheel 1,
Fig. 1, or to the carrier fixed at one end of the tappet shaft, as shewri
in Figs. 2, 6, and 7, or at or near the middle, as in Fig. 3, and the lever p,
shaft g, bracket v, lever t, and parts in connection with them are shewn
enlarged in Figs. 6 and 7. To the lever is jointed a short arm w,
having an angular end abutting on an angular stop formed in the
lever, the end being kept firm on the stop by the spring, so that on the
opposite side of the spring there shall be a firm and level surface for
the tappets to act upon as they revolve during the process of weaving,
but when the tappets are reversed the short arm gives way, as shewn
in Figs. 6 and 7, to prevent damage. When the loom is set to work,
and the tappet shaft c revolves in its working direction cach tappetu
one after the other raises the lever-t and depresses the lever ?, the rod o,
and finger u so as to partly turn the stop rod f, and bring back the
swell fingers. ¿ from the swells before the shuttle leaves one shuttle
box, and so remaining until the shuttle lias entered the other shuttle
box, and so on alternately, the dwell or time required for the exit and
entrance of the shuttle being regulated by the length of contact of each
tappet on the lever t. We also obtain the same results by causing a
single tappet fixed in an arm of the toothed wheel , Fig. 1, or to a
carrier fixed to the crank shaft to give movement to levers and parts
.similar to those before described, and in Fig. 4 we shew a single
tappet a' attached to the carrier b' fixed to the crank shaft b, the tappet

page_text: acting as the shaft revolves on the lever c¹ which gives movement to the
lever d', rod e', finger f, and brings back the swell fingers g' at the
required times, there being a yielding arm and spring to prevent damage
similar to those shewn in Figs. 6 and 7.
Having now described the nature and particulars of our said Invention,
and the manner in which the same is to be performed, we desire it to
be understood that we claim, the improved mechanical arrangements
worked from the tappet and crank shafts of the loom for taking off the
pressure of the weighted stop rod and ordinary springs from the swells
when the shuttle leaves and enters the shuttle boxes, as all such
improvements are herein described and illustrated on the accompanying
Sheet of Drawings.
In witness whereof, we, the said Richard Haworth, Edwin Wood-
cock, and Joseph McCabe, have hereunto set our hands and seals,
this Twenty-fifth day of July, in the year of our Lord One
thousand eight hundred and seventy.