MENTS IN MAKING SPINDLES
Year: 1885

page_text: ABRAHAM KERSHAW of N° 1 Sevastopol Street Belfast County of Antrim
Ireland Mechanic do hereby declare the nature of my invention for IMPROVE-
MENTS IN MAKING SPINDLES to be as follows:-
These improvements relate to the method of forming the grooves or slots in the
tops of spindles to receive the keys in the heads of flyers for the purpose of con-
necting the flyers and spindles together.
The usual methods of making these grooves are by either slotting drills, 'shaping
tools, milling tools or annular cutters.
This improved method of making the grooves in the tops of spindles to receive
the keys in the flyers whereby they are retained and driven consists in forging
pressing or stamping in whilst hot the grooves in the spindles.
This forming of the grooves by compression causes the surface of the grooves to
be much more durable as it does not need to be broken subsequently by shaping or
other tooling and the top of the spindle being increased in density is thereby made
stronger.
The stamps for forming these grooves can be made of any required shape for
straight or curved slots in any required direction for right or left hand twist or
with branches for both right and left hand twist.
This method of forming the grooves in tops of spindles by forging pressing or
stamping whilst hot is applicable to all kinds of spindles especially for roving
spinning or twisting frames and a much more durable spindle top and groove is
obtained at a less cost in labour than hitherto.
The stamps or dies can be worked by either hand or power but preferably by
power in the ordinary spindle or flyer forging machine with a raising and lowering
anvil.
AL

page_text: Improvements in Making Spindles.
I, ABRAHAM KERSHAW of No 1 Sevastopol Street, Belfast, County of Antrim,
Ireland, Mechanic, do hereby declare the nature of this invention and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement:-
These improvements relate to the method of forming the groove or slot in the
top of spindles to receive the keys in the heads of flyers for the purpose of con-
necting the flyers and spindles together.
This improved method of forming the grooves in the top of spindles to receive
the keys in the flyers, whereby they are retained and driven, consists in forging,
pressing, or stamping in, whilst hot, the grooves in the spindles.
The drawing herewith shews the tools employed for this purpose when the opera-
tion is performed in an ordinary forging machine; and there is also shewn the
spindle top with the groove in, before the spindle is ground or finished.
Figures 1 and 2 shew in side and top view the form of die as employed for
ordinary Lock Top spindles, and Figure 3 the die placed in the head of the forging
machine.
Figures 6, 9 and 10 shew, in side, edge, and plan views, the form of swage
block employed to receive the spindle end whilst subjected to the action of
the die.
Figures 4 and 5 shew, in side view and plan, the shape of the spindle top, in the
block, after being subjected to the action of the dies, and Figures 7 and 8 shew, by
similar views, the shape of the finished spindle top, when made with ordinary
single lock top.
Figures 11 and 12 shew in side and top view the form of die employed for lock
top spindles made to turn in either direction and lock in either, and Figure 13
shews the die fixed in the head of the forging machine.
Figures 16, 19, and 20 shew in side, plan, and edge views, the form of swage
block employed to receive the spindle end whilst subject to the action of the dies.
Figures 14 and 15 shew in side and top view the shape of the spindle top, in the
block, after being subjected to the action of the dies for locking with either right
or left hand twist.
Figures 17 and 18 shew in similar views the shape of the finished spindle top
when made to lock in either direction.
The stamps or dies and blocks can be made to suit any diameter of spindle, and
to form any required shape of groove or slot, straight or curved, and in any
required direction for right or left hand twist, or with branches for both right and
left hand twist, as shewn in figures 11, 12, 13, 14, 15, 17, 18, 19 and 20.
This forming of the grooves by compression causes the surface of the grooves to
be much more durable, as it does not need to be broken subsequently by shaping
or other tooling, and the top of the spindle being increased in density, is thereby
made stronger.
The stamps or dies can be worked by either hand or power (but preferably
I apply power) in the ordinary spindle or flyer forging machine, with a raising and

page_text: lowering anvil, into which the swage blocks, as shewn in figures 3, 6, 9, 10, 13, 16,
19 and 20, are inserted.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is
The formation of grooves or slots in spindles by forging, stamping, or com-
pression, whilst hot, in the manner and for the purpose above described.