IMPROVEMENTS IN SPINDLES (OF SPINNING MACHINERY), AND IN THE MACHINERY TO BE EMPLOYED IN THE MANUFACTURE THEREOF
Year: 1877

page_text: LETTERS PATENT to George Greenwood and James Greenwood, both of Halifax,
in the County of York, Spindle and Flyer Makers, for the Invention of
46 IMPROVEMENTS IN SPINDLES (OF SPINNING MACHINERY), AND IN THE
MACHINERY TO BE EMPLOYED IN THE MANUFACTURE THEREOF."
PROVISIONAL SPECIFICATION left by the said George Greenwood and
James Greenwood at the Office of the Commissioners of Patents on the 4th
September 1877.
GEORGE GREENWOOD and JAMES GREENWOOD, both of Halifax, in the County of
York, Spindle and Flyer Makers. "IMPROVEMENTS IN SPINDLES (OF SPINNING
MACHINERY), AND IN THE MACHINERY TO BE EMPLOYED IN THE MANUFACTURE
THEREOF."
This Invention relates to an improvement in spindles of spinning machines and
other machines of that class, whereby the oil applied thereto for lubricating the
tubes is retained at the point required, and such improved spindles are as herein-
after described, so constructed as to greatly reduce the friction and wear and tear
of spindle and tube.
According to this our Invention, we form around the spindle, or part thereof
traversed by the tube, a helical or spiral groove, within which the oil lodges,
preventing or retarding the rapid descent thereof, and by reason of the reduced
contact surface of spindle and tube, there is less friction and wear and tear of
spindle and tube.
The apparatus we employ for forming the spiral groove comprises a forging
machine, to which we apply a "fuller" or swage to the swage holder, of the width
of the groove to be formed, the bottom or under swage being semicircular and
equal to half the diameter of the spindle to be operated upon.
One end of the spindle is secured to a screw or worm (working through a she screw
block) of the pitch required for the groove around the spindle, so that on the spindle
being heated and placed between the swages under pressure, and the screw or worm

page_text: turned, the spindle is caused to advance and turn between the swages forming the
required groove along the spindle.
The improved machinery above described is also applicable for forming the
spiral grooves upon the "swell" of the spindle for setting and adjusting the height
thereof, and for forming spiral grooves on spindles or shafts generally.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said George Greenwood and James Greenwood in the Great Seal Patent
Office on the 2nd March 1878.
GEORGE GREENWOOD and JAMES GREENWOOD, both of Halifax, in the County of
York, Spindle and Flyer Makers. "IMPROVEMENTS IN SPINDLES OF SPINNING
MACHINERY, AND IN THE MACHINERY EMPLOYED IN THE MANUFacture thereof."
This Invention relates to an improvement in spindles of spinning machines (and
other machines of that class), whereby the oil applied thereto for lubricating the
tubes is retained at the point required, and such improved spindles are (as herein-
after described) so constructed as to greatly reduce the friction and wear and tear
of spindle and tube.
According to this our Invention, we form around the spindle, or part thereof
traversed by the tube, a helical or spiral groove, within which the oil lodges,
preventing or retarding the rapid descent thereof, and by reason of the reduced
contact surface of spindle and tube there is less friction and wear and tear of
spindle and tube.
The apparatus we employ for forming the spiral groove comprises a forging
machine, to which we apply a "fuller " or swage (to the swage holder) of the width
of the groove to be formed, the bottom or under swage being semicircular and equal
to half the diameter of the spindle to be operated upon.
One end of the spindle is secured to a screw or worm (working through a she
screw block) of the pitch required for the groove around the spindle, so that on the
spindle being heated and placed between the swages under pressure, and the screw
or worm turned, the spindle is caused to advance and turn between the swages,
forming the required groove along the spindle.
The improved machinery above described is also applicable for forming the spiral
grooves upon the "swell" of the spindle, for setting and adjusting the height thereof,
and for forming spiral grooves on spindles or shafts generally.
Such being the nature and particulars of this our said Invention, in order that
the same may be fully understood, we have hereunto annexed two Sheets of
Drawings.
DESCRIPTION OF THE DRAWINGS.

page_text: A is the spindle; B, the forging machine; C, the "fuller" or swage ; D, the swage
holder, which latter is of the width of the groove to be formed around the spindle A,
the bottom or under swage E being semicircular, and equal to half the diameter of
the spindle to be operated upon.
One end of the spindle A is secured by set screw a to a screw or worm F
working through a she screw bolt G of the pitch required for the grooved around
the spindle, so that on the spindle being heated and placed between the swages C
and E under pressure, and the screw or worm F turned, the spindle A is caused to
advance and turn between the swages forming the required groove d along and
around the spindle A.
The improved machinery above described is also applicable for forming the spiral
grooves upon the "swell" of the spindle, as described, and for forming spiral grooves
or spindles or shafts generally.
Having thus fully described the nature and particulars of this our said Invention,
together with the manner in which the same is to be or may be performed, we
would have it to be understood that we do not claim any of the parts separately, and
we expressly limit and confine our claim to the use of the parts F, G, C, and E, in
combination, as and for the purpose described and illustrated.
In witness whereof, we, the said George Greenwood and James Greenwood,
have hereunto set our hands and seals, this First day of March, in the year
of our Lord One thousand eight hundred and seventy-eight.
Witness,
WALTER BRIERLEY,
Patent Agent,
Halifax & Blackburn.
GEORGE GREENWOOD.
JAMES GREENWOOD.
(L.S.)
(L.S.)