Improvements in Sliver Cans and in Apparatus for Manufacturing same.
Year: 1897

page_text: Date of Application, 2nd April, 1897
Complete Specification Left, 27th May, 1897-Accepted, 3rd July, 1897
TIUYIDIUNAL OF TOIT TUATIUR
Improvements in Sliver Cans and in Apparatus for Manufacturing
same.
I, RICHARD PARKER of Heapey Copper Works, Heapey, in the County of Lancaster,
Machine Maker, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in the manufacture of sliver cans which
have hitherto been constructed of a number of separate pieces comprising a bottom,
a wrought iron ring, and a binder piece to connect the bottom to the upper part of
the can.
I now construct the sliver can with the bottom constructed of one piece of drawn
steel. I take a disc of sheet steel of the requisite strength and thickness and by
means of a ram or plunger and suitable die I draw the disc of sheet steel into the
cupped or dished shape requisite for the purpose.
I construct the machine with a die or plunger of required size at the end of a
screwed shaft the screw serving to advance the die or plunger as required.
In the framing of the machine which must comprise a strong solid block or casting
I bore a hole sufficiently large to admit the plunger to pass through. At one side
of this hole I bolt or otherwise fix two steel plates with circular holes for the plunger
to pass through. These form the die and mechanisin to hold the steel plate disc when
under operation.
The machine comprises a strong worm which carries the plunger die at one end.
A pinion with a hard metal interior forms a nut to force the plunger die to and fro.
This pinion nut is rotated by a train of spur gearing from driving pulleys or other
suitable driving mechanism.
The whole is mounted on a suitable bed to give the required amount of rigidity.
Improvements in Sliver Cans and in Apparatus, for Manufacturing
same.
I, RICHARD PARKER, of Heapey Copper Works, Heapey, in the County of Lancaster,
Machine Maker, 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 :-
This invention relates to improvements in the manufacture of sliver cans which
have hitherto been constructed of a number of separate pieces comprising a bottom,
a wrought iron ring, and a binder piece to connect the bottom to the upper part of
the can.
It consists essentially in constructing the sliver can with a bottom formed of a single

page_text: piece of drawn steel and in apparatus for drawing or shaping the bottom from a disc
of sheet steel.
It will be fully described with reference to the accompanying drawings.
Fig. 1. Front elevation of sliver can constructed according to my invention.
Fig. 2. Sectional elevation of same.
Fig. 3. Side elevation partly in section of the apparatus for forming the bottoms.
Fig. 4. Eud elevation partly in section of same.
Fig. 5. Transverse section on line x-y Fig. 3.
Fig. 6. Extended plan of blank from which the bottom is formed.
The sliver can is constructed of the two parts A forming the upper part and
B' forming the bottom. The bottom B is formed from a single disc or sheet of steel
(B Fig. 5) drawn into a dished or cupped shape by means of a ram or plunger C, and
suitable die N.
The apparatus is constructed with two rams or plungers C fitted or attached to the
ends of a shaft E which is provided with a screw F by which the plunger is advanced
or withdrawn in either direction as required.
The screw F passes through a nut or female thread in the pinion wheel G which is
rotated at the desired speed by a suitable train of gearing represented by the pinion
wheels H. driven by the driving pulleys K. The driving pulleys comprise two loose
pulleys and one fast pulley & which are operated by two straps k. A strap fork L. is 2
connected to a lever M the lower end m of which engages with a recess in the
shaft E by which the machine is reversed or stopped when the shaft has reached the
end of its travel in one direction or the other.
The female dies N to receive the rams or plungers C are formed in the end
framing of the machine through which is bored a hole sufficiently large to admit 2
the plunger. The dies comprise a solid block or casting O through which the hole
is bored with one or two steel plates n bolted at one side provided with circular
apertures to admit the plunger.
The sheet metal blank or disc B₁ is inserted between the plates and held in
position thereby and the plunger is then forced up by the worm and forces the a
plate B through with it as it enters the die. At the opposite end of the machine the
shaped bottom may be further compressed.
The machine is mounted on a suitable bed R to give the desired amount of stability.
Having now particularly described and ascertained the nature of the said invention
and in what manner the same is to be performed I declare that what I claim is :-
1. A sliver can constructed with a bottom formed from a single piece of sheet steel
drawn to shape and secured to the upper or cylindrical part of the can substantially
as described and shown.
2. The improved sliver can constructed as described and shown.
3. Apparatus for drawing or forming dished or cup shaped bottoms for sliver cans
from blanks of sheet steel substantially as described.
DL: OIL .. 10077
Dated this 9th day of May 1907.
WM. P. THOMPSON & Co.,
Manchester, Liverpool, and London, Patent Agents.