IMPROVEMENTS IN MACHINERY FOR GRINDING SPINDLES FOR SPINNING AND DOUBLING."
Year: 1882

page_text: LETTERS PATENT to George Ryder and Matthew Fielding both of Bolton in
the County of Lancaster, for an invention of "IMPROVEMENTS IN MACHINERY
FOR GRINDING SPINDLES FOR SPINNING AND DOUBLING."
PROVISIONAL SPECIFICATION left by the said George Ryder and Matthew
Fielding at the Office of the Commissioners of Patents on the 1st April 1882.
GEORGE RYDER and MATTHEW FIELDING both of Bolton in the County of
Lancaster "IMPROVEMENTS IN MACHINERY FOR GRINDING SPINDLES FOR SPINNING
AND DOUBLING."
In performing our invention we mount the grinding wheel upon a sliding
carriage and mount the spindle to be ground on the upper swivelling part of a
table to the lower part of which we impart an automatic longitudinal motion by
a worm and rack or a screw and nut or otherwise: we provide an adjustable pivot
on which the upper part of the table swivels and attach to the frame of the
machine a template or pattern for guiding the swivelling table: an antifriction
roller which turns on a bracket fastened to the swivelling table is caused by a
spring to press against the template. We mount two fast and three loose pulleys
on the worm shaft and use an open and a cross belt for driving the saine and
move the belts by guides operated by adjustable tappets, so that the notion of the
table may be regulated and reversed at any given stroke. We make a combined
setting up action and indicator by means of a screw which enters a nut in the
carriage, on this screw shaft is fixed a toothed wheel which receives motion from
a catch actuated by each stroke of the table inside the toothed wheel we cast a
bevel wheel that gives motion to a bevel pinion on a fixed stud gearing into a
bevel wheel cast inside a plain wheel loose on the screw shaft: on this plain wueel
is a projection that lifts the catch that gives motion to the screw this catch is
lifted out of contact with the wheel when the spindle has been ground to size.
We use a number of steel dies to support the spindle and provide set screws so as to
adjust theui vertically and horizontally..
75

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said George Ryder and Matthew Fielding in the Great Seal Patent
Office on the 29th September 1882.
GEORGE RYDER and MATTHEW FIELDING, both of Bolton in the County of
Lancaster. "IMPROVEMENTS IN MACHINERY FOR GRINDING SPINDLES FOR SPINNING
AND DOUBLING."
In performing our invention we mount the grinding wheel upon a sliding
carriage and mount the spindle to be ground on the upper swivelling part of a
table to the lower part of which we impart an automatic longitudinal motion by
a worm and rack or a screw and nut or otherwise: we provide an adjustable pivot
on which the upper part of the table swivels and attach to the frame of the
machine a template or pattern for guiding the swivelling table: an antifriction
roller which turns on a bracket fastened to the swivelling table is caused by a
spring to press against the template. We mount two fast and three loose pulleys
on the worm shaft and use an open and a cross belt for driving the same and move
the belts by guides operated by adjustable tappets so that the motion of the table
may be regulated and reversed at any given stroke. We make a combined setting
up action and indicator by means of a screw which enters a nut in the carriage
on this screw shaft is fixed a toothed wheel which receives motion from a catch
actuated by each stroke of the table: inside the toothed wheel we cast a bevel
wheel that gives motion to a bevel pinion on a fixed stud gearing into a bevel
.wheel cast inside a plain or graduated wheel loose on the screw shaft: on this
plain wheel is a projection that lifts the catch that gives motion to the screw
when the spindle has been ground to size.
We use a number of steel dies to support the spindle and provide set screws so
as to adjust them vertically and borizontally.
And in order that our invention may be fully understood and readily carried
into effect we will describe the accompanying sheet of drawings reference being
had to the figures and letters marked thereon.
1
Fig. 1 is an elevation of part of our improved machine Figs. 2 and 3 are end
views of portions of the machine and Fig. 4 is a plan of the machine.
a is the grinding wheel mounted on the carriage a¹ that slides on the top of the
frame a². The spindle to be ground is mounted at b b and is caused to rotate in
the usual manner: the brackets b'b' carrying the spindle bearings are bolted to
the swivelling table b² which swings on an adjustable pivot c secured to the sliding
table c on which the table 62 bears: there is a rack fixed to the under part of the
table c and it is moved to and fro' longitudinally by a worm on the shaft d which
is caused to turn alternately in opposite directions by an open belt on one of the
fast pulleys d' and a cross belt on the other fast pulley d¹ in addition to these
pulleys there are three loose pulleys d² on the shaft d: the belts are moved by
strap forks on the bars d³ connected to the reversing rod d' which is actuated by
adjustable tappets c² attached to the table c¹: the straps are kept on the desired
pulleys by the spring catch de which bears against one end of the lever, do to which
the reversing rod is connected. To the table 62 is secured a bracket 63 at the end
of which is carried the roller b' that bears against the template e, made of a
number of parts which may be adjusted by set screws fitted in a bracket bolted to
the frame of the machine: this template corresponds with the outline of the
spindle to be ground and the roller 6* bearing against it causes the table be to
swivel and thus present the spindle to the grinding roller in the desired position:
the inner end of 2³ is hollow and contains a spring one end of which bears against

page_text: a block fixed to the table c3 and this spring causes the roller b* to press against
the template e. To support the spindle we use a number of steel dies f, these dies
are fitted in sliding blocks which are caused to move forward as the diameter of
the spindle decreases by weighted levers f¹ fitted on screws which force the dies
forward: these levers are raised at the commencement of the operation. and descend
as the diameter of the spindle is reduced, when the spindle has been ground to the
desired size the lower ends of the levers rest on the bracket f2 there is a catch ƒ³
which is moved on to a projection at the top of one of the levers and keeps them
up (each lever supporting the following one) while a fresh spindle is being placed
in the machine to be ground. The grinding wheel is moved towards the spindle
by the screw which enters a nut on the carriage a': on this screw shaft is fixed
a ratchet wheel h which receives motion through a catch i connected to a rocking
lever or segment ¹ attached by a connecting rod is to a toothed quadrant 2 which
is geared with the toothed quadrant 3 an adjustable tappet j on the carriage c¹
when the carriage is traversed moves the quadrant and through it the catch i
and turns the wheel h and screw g partly round: an adjustable tappet jl on the
carriage c¹ acts on the top of the quadrant 3 and moves it toward the quadrant i*:
the teeth at the base of the quadrants cause the quadrant 2 to move toward the
quadrant and thus through the connecting rod and catch i, the wheel h and
screw g are again turned partly round; a spring draws back the quadrants and
the catch i. Inside the wheel h is a bevel wheel which gears into a pinion k that
turns on a stud fixed on a bracket secured to the frame, this pinion transmits
motion to a bevel wheel inside a graduated wheel loose on the shaft g, on this
wheel is an adjustable stop piece m which is so set as to come under and lift a
bowl connected to the catch i when the carriage a¹ has been drawn forward far
enough for the wheel a to grind the spindle being operated upon to the desired
diameter.
Having stated the nature of our invention and described the manner of
performing the same,
We declare that we claim :
1. The general combination and arrangement of the parts forming the
improved machines for grinding spindles substantially as shown and described.
2. The combination with the table 63 of the template e substantially as and for
the purpose herein shown and described.
3-The combination with the table 62 and table c¹ of the worm and worm
shaft d operated as and for the purpose described.
4. The adjustable dies f substantially as and for the purpose shown and
described.
5. The mechanism for actuating the screw gas and for the purpose herein
shown and described.
In witness whereof I the said George Ryder for myself and on behalf of
the said Matthew Fielding have hereunto set my hand and seal this
twenty-sixth day of September One thousand eight hundred and eighty
GEORGE RYDER. (L.S.)