CERTAIN IMPROVEMENTS IN THE CONSTRUCTION OF TIN DRUMS OR ROLLERS USED IN THE MACHINERY FOR DRAW- ING, SPINNING, DOUBLING, TWISTING, AND THROWING COTTON, WOOL, SILK, FLAX, AND OTHER FIBROUS SUBSTANCES
Year: 1848

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EDWARD
GRIBBEN WILSON, of Bury, in the County of Lancaster, Tin Plate Worker,
send greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her
Letters Patent under the Great Seal of Great Britain, bearing date at West-
minster, the First day of August, in the twelfth year of Her reign, and in
the year of our Lord One thousand eight hundred and forty-eight, did, for
Herself, IIer heirs and successors, give and grant unto me, the said Edward
Gribben Wilson, Her especial licence, full power, solo privilege, and autho-
rity, that I, the said Edward Gribben Wilson, my exors, admors, and assigns,
and such others as I, the said Edward Gribben Wilson, my exors, admors, or
assigns, should at any time agree with, and no others, from time to time and
at all times during the term of years therein expressed, should and lawfully
might make, use, exercise, and vend, within England and Wales, and the Town
of Berwick-upon-Tweed, my Invention of "CERTAIN IMPROVEMENTS IN THE
CONSTRUCTION OF TIN DRUMS OR ROLLERS USED IN THE MACHINERY FOR DRAW-
ING, SPINNING, DOUBLING, TWISTING, AND THROWING COTTON, WOOL, SILK, FLAX,
AND OTHER FIBROUS SUBSTANCES;" in which said Letters Patent is contained
a proviso, that I, the said Edward Gribben Wilson, shall cause a particular
description of the nature of my said Invention, and in what manner the
same is to be performed, to be enrolled in Her Majesty's High Court of
Chancery within six calendar months next and immediately after the date
of the said in part recited Letters Patent, as in and by the same, reference
being thereunto had, will more fully and at large appear.

page_text: NOW KNOW YE, that in compliance with the said proviso, I, the said
Edward Gribben Wilson, do hereby declare that the nature of my said In-
vention and the manner in which the same is to be performed, is particularly
described and ascertained in and by the following explanation thereof (that
is to say)
My improvements in the construction of tin drums or rollers, used in the
machinery for drawing, spinning, doubling, twisting, and throwing cotton, wool,
silk, flax, and other fibrous substances, apply to the construction of the drums
or rollers usually employed in such machinery for the purpose of driving the
spindles; and their principal object is to impart to such drums or rollers a
greater degree of strength and durability, and also a much more accurate and
true surface, than can be obtained by the ordinary method of manufacture. It
it is well known to persons conversant with such machinery, that tin drums
and rollers manufactured in the manner hitherto employed are, on account of
the number of joints and piecings, very liable to get distorted, and to break at
the joints, and also that for the same reason there are always more or less
irregularities and inequalities of surface, and that the driving bands some-
times working in the crevice at the junction of the different lengths of which
the roller is formed, and sometimes upon the top of the swaging (which is
often slightly raised above the level of the rest of the length, and consequently
of a larger diameter,) causes an uncertainty and irregularity in the speed of the
spindles, exceedingly detrimental to the perfect and uniform operation of the
machine. In manufacturing a tin (throstle) roller by the ordinary process as
hitherto employed (supposing the roller to be about twelve feet in length and
nine inches diameter), it is constructed in twelve lengths jointed together, each
length being composed of three sheets of tin, so that each roller requires thirty-
six sheets of tin to form the body, exclusive of the ends and blocks. My
improvements in manufacturing tin rollers used in such machinery consist in
constructing the said rollers of tin plates of a much larger size than have
hitherto been employed for that purpose, say, from three feet to twelve feet or
more in length, and sufficiently wide to form the circumference, so that a tin
roller of twelve feet long can be composed of four sheets, three sheets, two
sheets, or one sheet of tin, and have only three joints, two joints, or no joint in
the whole length, instead of eleven, as by the ordinary method, each length
having but one seam instead of three. When the roller has been thus made
and the joints and seams well secured, the roller must be rounded and turned
in a slide or other lathe (upon a mandril adapted to its length and diameter)
to a perfect and uniform cylinder, presenting a straight and parallel surface.
Thus it will be evident that the liability of such rollers to get distorted and

page_text: break at the joints, and their want of uniformity of diameter, and truth of
surface, inevitable under the old mode of construction, is completely remedied
and obviated by my improved method, and a more perfect uniformity in the
speed of the spindles ensured, than has hitherto been obtained. In manufac-
turing tin drums for self-acting and other mules, my improvement consists in
constructing the grooved pulley which recieves the driving band of one and
the same piece with the rim of the body, instead of being made of a separate
piece, and soldered together in the usual way. By the use of this
improvement it will be seen that the drum is much less liable to get out of
repair, and if the pulley should wear out it may be replaced with great facility,
the drum being provided with an internal belt to support its circumference,
should the original pulley be removed.
Having thus described the nature and object of my said improvements,
together with the method of carrying the same into practical effect, I would
remark, in conclusion, that I claim as my Invention,-
First, the method of constructing tin rollers used in the above-named
machinery of tin plates of a much larger size than have hitherto been
employed for that purpose, so as to require much fewer seams and joints, and
also rounding and turning them in a slide or other lathe, as above described.
And, secondly, in forming the grooved pulley of mule drums of one and
the same piece with the rim of the body of the drum itself, instead of forming
it of separate pieces and soldering it on to the drum, as hitherto practised.
In witness whereof, I, the said Edward Gribben Wilson, have hereunto
set my hand and seal, this Thirty-first day. of January, One thousand