IMPROVEMENTS IN APPARATUS EMPLOYED IN PREPARING AND SPINNING WOOL AND OTHER FIBROUS SUBSTANCES
Year: 1864

page_text: LETTERS PATENT to Alexander Hennah Martin, of Buttershaw 'Mills,
near Bradford, in the County of York, Mechanic, for the Invention of
"IMPROVEMENTS IN APPARATUS EMPLOYED IN PREPARING AND SPINNING WOOL
AND OTHER FIBROUS SUBSTANCES."
(Void by reason of the Patentee having neglected to file a Specification in
pursuance of the conditions of the Letters Patent.)
PROVISIONAL SPECIFICATION left by the said Alexander Hennah Martin
at the Office of the Commissioners of Patents, with his Petition, on the
15th March 1864.
I, ALEXENDER HENNAH MARTIN, of Buttershaw Mills, near Bradford, in
the County of York, Mechanic, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN APPARATUS EMPLOYED IN PREPARING AND
SPINNING WOOL AND OTHER FIBROUS SUBSTANCES," to be as follows:-
The improvements relate, first, to drawing or pressing rollers employed in
pairs on the same axle in preparing and spinning fibrous substances. Such
rollers have ordinarily had the two rollers of each pair fixed to their spindle,
so that they revolved together with such spindle, but when so combined it is
found that any variation in the relative size of those two rollers, or of those
rollers in relation to other rollers they work with, causes an irregularity of the
drawing or pressing to the fibre under operation, and the object of the

page_text: improvements is to remedy this evil by fixing only one of each pair of such
rollers to their spindle, leaving the other roller to turn freely on such spindle.
And to prevent the free or loose roller of each pair when such rollers are
formed of wood from wearing too fast by friction on its spindle, I apply to it
a metal boss or collar to run upon its spindle.
.
The improvements relate, secondly, to means of obtaining greater steadiness
and more uniform friction to bobbin tubes. The head of each of such tubes
ordinarily rests on a friction washer, carried by the lifting bar or rail, and in
changing bobbins a readjustment of the washer or of the surfaces of the
bobbin tube resting thereon has often to be effected to the amount of friction
required. And the improvements under this head of the Invention consist in
applying separate boxes or friction surfaces, one for each bobbin tube,
intermediate of the washers on the lifting rail and the bobbin tubes. Each
of such boxes or friction surfaces is formed with a hole through it to fit the
bobbin spindle, and with a flange on its outer edge rising up so as to.
embrace and hold upon the side surface of the head of the bobbin tube. The
inside of this box or friction surface upon which the head of the bobbin
tube rests is provided with a washer of leather or of other suitable material to
act between the upper surface of this intermediate box or friction surface and
the under surface of the bobbin tube, or there are projections or studs in one
of such surfaces to pass into a groove or recess in the other, by which the
bobbin tube and the intermediate box or friction surface will be caused to
travel together. By these means greater steadiness is obtained to the
bobbins in working, and in the change of them the boxes or friction surfaces
remain on their washers on the lifting plate or bar, and the amount of
friction exerted remains unchanged with change of bobbin tubes, whilst the
inconvenience arising from variation in the size of the bore of the bobbin in
relation to the size of the bobbin spindle is avoided, and the bushing to the
bobbin is unnecessary.