Process of Manufacturing Steel Spinning Spindles, as Used for Textile Purposes, and Tools for Carrying same into Effect.
Year: 1898

page_text: Date of Application, 3rd Nov., 1898
Complete Specification Left, 3rd May, 1899-Accepted, 5th Aug., 1899
Improvements in
PROVISIONAL SPECIFICATION.
the Process of Manufacturing Steel Spinning
Spindles, as Used for Textile Purposes, and Tools for Carrying
same into Effect.
ALFRED HITCHON, Clayton Manor, Clayton-le-Dale, Lancashire, Machinist
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention relates more particularly to the process of manufacturing steel
spindles, as used for textile spinning purposes, which have hitherto customarily
had their tapered or attenuated parts forged or beaten out whilst in a heated
state by forging hammer on stationary anvil block, which process is somewhat
defective on account of the hammering having to be continued too long after the
so heated spindle has become partially and unequally chilled, thereby entailing
a further detrimental effect by causing the so forged spindle to fall out of align-
ment during the grinding and finishing operations.
The object of this my new invention, is to obviate the aforenamed defects, by
inaking use of such tools and processes as I will describe, by which it will be
impossible to produce an unequal chill during the forming, tapering, or drawing
out operation.
I first anneal the parallel steel bars or rods, and let them cool off completely,
prior to being operated upon, after which I pass their ends into suitably formed
revolving swaging dies that have a compressing action, and draw them out to
their requisite tapered shape. The compressing action upon these swaging dies
18 obtained by their outer ends having runner bowls or rollers mounted thereon,
which come in contact with a number of runner bowls or rollers that are mounted
in a circular pathway for the die rollers to come in contact with, thereby giving
the necessary quantity of compressing strokes at each revolution of the swaging
dies, as they revolve around the spindle so being operated on.
It will thus be
seen that by this process of operating on the cold and annealed steel, I obviate
any possibility of producing chilled steels, as before described. This process of
swaging produces a bright smooth finish, which dispenses with the necessity of
scale grinding altogether, enables greater precision of circularity and exactitude
of size, and being attained, also mitigates grinding to a considerable extent
Dated this Second day of November, One thousand eight hundred and
ninety-eight.
Improvements in
the Process of Manufacturing Steel Spinning
Spindles, as Used for Textile Purposes, and Tools for Carrying
same into Effect.
ALFRED HITCHON, Clayton Manor, Clayton-le-Dale, Lancashire, Machinist
Engineer, do hereby declare the nature of this invention and in what manner the
Dnice 77

page_text: same is to be performed, to be particularly described and ascertained in and by
the following statement:-
This invention relates more particularly to the process of manufacturing steel
spindles, as used for textile spinning purposes, which have hitherto customarily
had their tapered or attenuated parts forged or beaten out whilst in a heated
state by forging hammer on stationary anvil block, which process is somewhat
defective on account of the hammering having to be continued too long after the
so heated spindle has become partially and unequally chilled, thereby entailing
a further detrimental effect by causing the so forged spindle to fall out of align-
ment during the grinding and finishing operations.
The object of this my new invention is to obviate the aforenamed defects by
making use of such tools and processes as I will describe, by which it will be
impossible to produce an unequal chill during the forming, tapering, or drawing
out operation.
I first anneal the parallel steel bars or rods, and let them cool off completely,
prior to being operated upon, after which I pass their ends into suitably formed
swaging dies that have a compressing action, and draw them out to
their requisite tapered shape. The compressing action upon these swaging dies
is obtained by their outer ends having runner bowls or rollers mounted thereon,
which come in contact with a number of runner bowls or rollers that are mounted
in a circular pathway for the die rollers to come in contact with, thereby giving
the necessary quantity of compressing strokes at each revolution of the swaging
dies, as they revolve around the spindle so being operated upon. It will thus be
seen that by this process of operating on the cold and annealed steel I obviate
any possibility of producing chilled steels, as before described. This process of
swaging produces a bright smooth finish, which dispenses with the necessity of
scale grinding altogether, enables greater precision of circularity and exactitude
of size, and being attained, also mitigates grinding to a considerable extent.
DESCRIPTION OF DRAWINGS. ONE SHEET.
Fig. 1 is an end elevation showing the steel rod or bar S being operated on
by the swaging dies A which are mounted in the die holders B, such die holders
being free to slide to and from the centre of the revolving block E. On the outer
ends of the die holders B are mounted the runner bowls C, which as the block E
revolves come in contact with runner bowls D mounted in the stationary block F,
and as will be seen by the drawing, a portion of the periphery of each bowl D is
exposed or projected to come in contact with the two bowls C that are mounted
in the die holders, thereby driving dies A with an opening & closing motion, &
giving them the necessary compressing action for reducing the steel bars to shape
gradually as the bars aforesaid are pushed within the dies that give the reduction
by their opening & closing compression action. The matrix formation of each
pair of dies in each machine are of such a shape as to give the exact required
pattern to the spindle, parallel or taper. The end of the red not being operated
on by the swaging dies is held in a suitable chuck, having an end traverse motion
stationary or revolved at will, and keeping the rod in alignment with the centre
of the swaging dies.
Fig. 2 is a plan view showing one end of the rod S partly drawn out and
tapered, such being the first operation.
Fig. 3 is a plan view showing the second and finishing operation on the same
end of rod S as in Fig. 2.
the
Fig. 4 is a plan view showing the first operation on the opposite end of rod S,
piece G being simply a spacing block to keep, dies A. in position..
Fig. 5 is a plan view showing the second or finishing operation on the same
end as in Fig. 4, the piece G being simply a spacing block.
Fig. 6 is a view of finished spindle.
Fig. 7 is a view of parallel steel rod previous to being operated on.

page_text: Figs. 8, 9, 10 and 11 show the spindle having undergone the consecutive
operations.
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 process of operating on annealed steel rods or cold forging to form, taper
and draw out spindles for textile spinning purposes by revolving compressing
swaging dies by two or more of the operations as described and illustrated by the
accompanying drawings forming a part of this specification.
Dated this 2nd day of May, One thousand eight hundred and ninety-nine.
ALFRED HITCHON,
Applicant.