IMPROVEMENTS IN RING SPINNING AND DOUBLING MACHINERY
Year: 1878

page_text: LETTERS PATENT to Thomas Coulthard; of Preston, in the County of Lancaster,
Machinist, for the Invention of "IMPROVEMENTS IN RING SPINNING AND
DOUBLING MACHINERY.”
Sealed the 7th June 1878, and dated the 20th April 1878.
COMPLETE SPECIFICATION filed by the said Thomas Coulthard at the Office
of the Commissioners of Patents on the 20th April 1878.
THOMAS COULTHARD, of Preston, in the County of Lancaster, Machinist.
PROVEMENTS IN RING SPINNING AND DOUBLING MACHINERY."
*
IM-
This Invention relates to improvements in ring spinning and doubling machinery,
and consists,-
Firstly. In so constructing a sheet metal ring holder as that it may also constitute
a "clearer" for the ring traveller.
And, Secondly. In an improved mode of securing a double ring to an adjustable
ring holder.
In the accompanying Drawings Fig. 1 is a plan, Fig. 2 an end view, and Fig. 3
a sectional elevation, shewing the construction of my improved ring holder. The
arrangement of "clearer" is shewn in combination therewith.
a is a double ring, that is to say, a ring having two flanges or races 1 and 2; b is
the holder provided with lips c, resting upon the upper edge of the lower flange 2 of
the double ring a. The lips care slotted at d, and holding down screws e secure the
holder and ring to the ring rail by the same operation. The openings d are of such
a width and length relatively to the size of the screws e as to permit of the holder
and ring being adjusted to a position concentric with the spindle; f is a lip formed
by cutting the outer portion of the sheet metal holder, and bending it upwards to
a vertical position. The inner edge of the lip f is at such a distance from the ring a
as to permit of the traveller g passing clear of the lip, but near enough thereto
to catch and thereby remove loose fibres which the traveller may have caught up.
Fig. 4 shews a form of ring holder described in and illustrated at Figs. 14, 15,
16, 23, and 238, in the Drawings accompanying the Specification of Letters Patent

page_text: granted to John Billington Booth, A.D. 1874, No. 1835, with my improved
arrangement of "clearer " in combination therewith.
My improved "clearer" may obviously be combined with other forms of sheet
metal ring holder, besides those already referred to.
The upper edge of the lip may be at any desirable angle with a radial line
passing from the centre of the ring; in Figs. 1 and 4 the lip fis shewn in different
positions.
By combining a clearer with an adjustable ring holder, it will be evident that
the space or distance between the clearer and the ring will remain unchanged
although the position of the latter may be altered for the purpose of adjustment or
removal.
Having now described the nature of the said Invention, and the mode in which I
prefer to carry it into practical effect, I desire it to be understood that what I
consider to be novel and original, and therefore claim as my Invention is as follows
(that is to say):
1. Constructing a sheet metal ring holder having a lip or projection in com-
bination therewith, such lip or projection being for the purpose of removing fibres
from or "
clearing" the traveller, substantially as described and shewn in the
Drawings.
2. The improved construction of sheet metal holder, and the mode of securing
the ring thereto, substantially as described and shewn at Figs. 1, 2, and 3 of the
Drawings.
In witness whereof, I, the said Thomas Coulthard, have hereunto set my
hand and seal, this Eighteenth day of April, in the year of our Lord Onc
thousand eight hundred and seventy-eight.
THOMAS COULTHARD. (L.S.)