MENTS IN MACHINERY FOR SPINNING AND DOUBLING."
Year: 1879

page_text: PROVISIONAL SPECIFICATION left by Peter McGregor at the Office of
the Commissioners of Patents on the 3rd April 1879.
PETER MCGREGOR, of Manchester, in the County of Lancaster.
MENTS IN MACHINERY FOR SPINNING AND DOUBLING."
"IMPROVE-
My Invention is applicable to those ring and traveller throstle spinning and
doubling machines in which spindles known in the trade as Rabbeth spindles are
employed, and it consists,--
First. In an improved mode of holding the spindle to prevent it rising when
working or when taking off the bobbin. I accomplish this by means of a screw
with an eccentric head or with a round head with one side filed off, so that a
partial turn of the screw brings the eccentric or full side of the head above the
wharve or a flange on the bottom of the wharve; this screw may be screwed up
fast to its head when it is in position for holding the spindle in its place.
Secondly. Where oil receptacles are placed near the bottom of the spindle, casting
a projection at one side of the receptacle in which is a horizontal hole in a line
with the lubricating holes in the bolster tube. The hole in the side of the chamber
is closed by a screw and washer which may be taken out to discharge the dirty oil
and to clear the interior lubricating holes. The top of this projection is level with
the top of the flange on the bottom of the wharve used for keeping the spindle
in its place, and in it is bored a vertical hole communicating with the aforesaid
horizontal hole through which the oil chamber can be supplied with oil, or this hole
may be bored at an angle communicating direct with the oil chamber. By the side
of this oil hole I place the holding down scrow with the eccentric head above
mentioned, the head of the said screw being used at the same time for holding
down the spindle and as a cover for the oil hole when the spindle is working. By
turning the screw partially round the oil hole is uncovered, and through it the
dirty oil may be drawn with a syringe and fresh oil poured into the chamber. The
top of this projection may be below the level of the bottom of the wharve to prevent
too much oil being put into the chamber and to act as an overflow, in which case
use a screw with a suitably shaped head which will at the same time cover the oil
hole and retain the spindle in its position.
Thirdly. In partially closing the lubricating chamber above referred to by means
of a thin washer resting on a ledge in the upper part of the chamber and below the
flange of the wharve, the inner part of the wharve descends lower than the
washer.

page_text: Fourthly. In covering the lubricating chamber by means of a thin washer which
rests on the upper part of the chamber and projects over the flange on the wharve,
thereby preventing the spindle from rising and acting as an efficient cover for
keeping dirt out of the chamber. In this washer a hole is drilled to correspond
with the oil hole in the projection, and the screw with the eccentric head is used
only to cover the oil hole as above described and to hold the washer in its
place.
Fifthly. In connecting the bobbins to the spindles above referred to by means of
a wire passing through the upper part of the bobbin and fitting in a slot in the
upper part of the spindle.