Improved Machinery for Manufacturing Metallic Cartridges.
Year: 1889

page_text: Date of Application, 31st Oct., 1889
Complete Specification Left. 28th July, 1890-Accepted, 27th Sept., 1890
PROVISIONAL SPECIFICATION.
Improved Machinery for Manufacturing Metallic Cartridges.
I ARTHUR GREENWOOD of Albion Works, Leeds, in the County of York, Engineer,
do hereby declare the nature of this invention to be as follows:-
This invention relates to a novel arrangement of machinery for choking or necking
cartridge cases after the charge of powder and the wad have been placed in the
case and inserting the bullet in the case, and specially adapted to those cartridges
which are loaded with a compressed powder pellet or other special charge.
To this end I mount upon a bed plate, two horizontal circular tables, which
overlap the one the other, and which are geared together to ensure their rotating, and
always maintaining the same relative position with respect to each other.
The lower table. which is a feeding table, is formed with a ring of holes for
receiving the cartridge cases from the hands of an attendant, and bringing them in
succession into line with one of a pair of fixed choking dies, and the upper table
is provided with a ring of dies corresponding in number with the holes in the feeding
table, and in form with the fixed choking dies.
or their
In vertical line with these fixed choking dies, are upper and lower plungers,
carried by vertical slides, which receive their movements from cams
equivalent.
When the cartridge case is supplied by the attendant with the powder charge, and
a cardboard disc or wad, it is brought by the automatic action of the machine
over the first lower plunger and under the first choking die. The plunger then
rises, and thrusts the case into the die thereby causing it to assume the contracted
form of the die.
The lower plunger then retires, and the upper plunger, in its descent, thrusts the
case back into the feeding table.
A further movement of the table now takes place, to bring it into line with a second
choking die, where, by means of a second pair of plungers (similarly actuated),
the action on the cartridge is repeated; this is done to ensure greater accuracy in the
dimensions of the finished case.
On the cartridge being returned a second time to the feeding table, a further
intermittent motion of that table brings the case under a die of the upper table,
when a plunger situate below the bed plate of the machine rises through an
opening in the same, and transfers the case from the feeding table to the die in the
upper table.
An attendant now inserts in the open end of the case the projectile, and the
dic table is then moved round to bring the projectile under the action of a
descending plunger mounted on the same slide that carries the upper plungers before
mentioned.
This plunger, by its descent, thrusts the projectile into the case, which firmly holds
it in place.
The cartridge, now completed, is moved forward under a fourth upper plunger
carried by the same slide as the other upper plungers, and over, a hole in the
base plate.
By the descent of this plunger, the cartridge is thrust out of the die into a shute
below, which conducts it to a suitable receiver.
The intermittently rotating tables may be fitted respectively with holes and dies to
receive any desired number of cartridge cases, care being taken that time enough is
allowed to the attendants to feed the machine.
Dated this 31st day of October 1889.
NEWTON & SON
ΜΕΙΟΝ SON
Agents for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improved Machinery for Manufacturing Metallic Cartridges.
I ARTHUR GREENWOOD of Albion Works, Leeds in the County of York,
Engineer, 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 a novel arrangement of machine for choking or necking
cartridge cases after the charge of powder and the wad have been placed in the case,
and inserting the bullet in the case, such machinery being specially adapted to
act upon those cartridges which are loaded with a compressed powder pellet or
other special charge.
To this end I mount upon a bed plate two horizontal circular tables,
which overlap the one the other, and which are geared together to ensure
their rotating, and always maintaining the same relative position with respect to
each other.
The lower table, which is a feeding table, is formed with a ring of holes for
receiving the cartridge cases from the hands of an attendant, and bringing them in
succession into line with one of a pair of fixed choking dies, and the upper table is
provided with a ring of dies corresponding in number with the holes in the feeding
table, and in form with the fixed choking dies.
In vertical line with these fixed choking dies, are upper and lower plungers, carried
by vertical slides, which receive their movements from cams or their equivalent,
and which also carry other plungers for continuing the progressive action of the
machine, and ensuring the insertion of the projectile into the choked or contracted
end of the cartridge case.
In the accompanying drawings, Fig. 1 is a plan view of the machine; Fig. 2
is a front elevation, and Fig. 3 an end elevation of the same, the lower
plungers being shewn as in action, and the upper plungers raised to their highest
position.
In these Figs., A A is the main framing, cast in one with a bed A¹.
two pillars A2 A2 are holted, for supporting a cross bed A³.
To this bed,
Fitted to this cross bed, are two stud axles bb', for receiving each a rotary table,
marked respectively B B¹.
These tables are east the one with a short, and the other with a longer
sleeve, to receive respectively spur wheels 62 63, which gear into one another,
to ensure the simultaneous rotation in opposite directions of their respective
tables.
CC are two choking dies for contracting the diameter of the upper part of the
cartridge case.
These dies are made fast to the main framing A, and are so situate as
to overlie the feeding table, and coincide with two of a ring of fifteen
holes formed in the feeding table, when that table is in a quiescent position.
B is the feeding table, into the holes of which the attendant drops the cartridge
cases intended to be operated upon by the machine. These cases, when deposited in
the table, are cylindrical, and severally contain a compressed powder pellet,
with an overlying disc or wad of cardboard, and they are retained in position
by reason of the holes being virtually closed by the bed A³ on which the table
rotates.
B₁ is the table carrying a ring of dies corresponding in number with the holes in
the feeding table, and in shape with the choking dies CO. D D are vertical slides
fitted each with a set of plungers. These slides work in V guides formed in the
front face of the main fraining A. The lower slide D carries three plungers, 1, 2, 3,
and the upper slide D' carries four plungers, 1*, 2*, 4, and 5.
The plungers 1, 2 are so arranged as to pass up through holes in the feeding table,
and drive the cartridge cases contained therein up into the dies C C₁, for the purpose

page_text: of converting them, by pressure, to the shape of the choking dies, while the
plungers 1 2 serve to enter these dies, and thrust out the moulded cases from the
dies, back into the receiving holes in the feeding table.
The tables B B¹ are so arranged with respect to each other, that as they are caused
to rotate, each die of the table B¹ will come in succession into coincidence with, and
stand over a hole in the table B. On the rise of the slide D, the plunger 3, which is
then in coincidence with the die overlying the hole in the table B, will rise through
a hole in the bed A³, and thrust out a cartridge case from the feed table, into the over-
lying die of the table B¹.
At each depression of the slide D, an intermittent axial motion will be imparted
to the table B by the means hereafter described, for the purpose of bringing the die
containing a cartridge case into coincidence with the plunger 4 of the slide D¹.
During this step by step rotation of the die table, the attendant will place in each
of the dies containing the cartridge cases, a projectile ready for insertion into the
cases by the downward pressure of the plunger 4.
When, by the descent of the slide D', the plunger 4 has driven the projectile into
the case, the slide will rise, leaving the table free to make a further advance, and by
this advance the now finished cartridge will be brought under the action of the
plunger 5, and over a hole in the bed A. The next descent of the slide D₁ will
cause the plunger 5 to drive out the finished cartridge from the die, and discharge it
down a shute into a receiver E.
To prevent injury to the point of the projectiles, the ends of the plungers 4 and 5
are shaped to correspond with the pointed ends of the projectiles.
I will now explain the means whereby motion is imparted to the plungers and the
tables, so as to ensure the proper relative action of the parts.
F is a horizontal driving shaft carried in bracket bearings at the back of the
machine.
This shaft is fitted with a pair of fast and loose band pullies F F¹, and a fly
wheel F at its other end, and it carries a bevil pinion, which gears into a bevil
wheel g, keyed to a cam shaft G, running transversely of the driving shaft F, and
turning in bearings in the main framing.
G₁ is a grooved cam into which takes the bowl of a bell crank lever-G², fulcrummed
on the main framing, and connected by means of a link rod g¹ with a pair of lugs on
the back of the slide D'.
At the front end of the cam shaft G, is keyed a crank plate G³, the crank pin of
which connects, by a link rod g', with a pin at the back of the slide D.
By the rotation, therefore, of this cam shaft, a reciprocating motion will be imparted
to the slides D Dí, and consequently to the plungers which they respectively carry.
This arrangement ensures the proper advance of the plungers 1, 2, and 1*, 2*, the
former to impart the compressing or moulding pressure, and the latter to discharge
the cases from the dies; also the rise of the plungers 3, and the depression of the
plungers 4 and 5, to effect the operations above indicated.
It is from the cam shaft G, that the motion for driving the tables B B¹ is derived.
I have said that these tables are connected by spur wheels 63 63 (a space for the
reception of which is made in the bed A³), and that they receive an intermittent axial
motion in opposite directions.
For the purpose of imparting this motion to the tables, the crank plate G³ is
formed with spur teeth on its periphery, which teeth gear into a spur wheel G* of
corresponding size to the crank plate, and mounted loosely on a stud axle projecting
from the main framing.
This spur wheel carries a mitre wheel, which gears with a mitre wheel keyed to
a short vertical axle G', supported in a bracket bearing on the main framing, and
carrying a crank plate G at its upper end.
Notches are formed in the periphery of the table B₁, to receive the pin of this
crank plate G, as it is rotated, by reason of its connection with the cam shaft G.
Thus, at each rotation of the cam shaft, the table B' will be rotated to an extent
sufficient to bring up a fresh die into line with the plunger 3, for the reception of a

page_text: cartridge case, and consequently to bring a fresh die into line with the plungers 4
and 5.
From the foregoing explanation, it will be understood, that as each cartridge case
is supplied by the attendant with the powder charge, and a cardboard disc or wad, it
is in due course brought by the automatic action of the machine over the plunger 1,
and under the plunger 1*. The plunger 1 then rises, and thrusts the case into the
first choking die C, thereby causing it to assume the contracted form of the die. The
plunger 1 then retires, and the upper plunger 1*, in its descent, thrusts the case back
into the feeding table."
A further movement of the table now takes place, to bring it into line with the
second choking die C¹, where, by means of the plungers 2 and 2* (similarly actuated),
the same action on the cartridge case is repeated this is done to ensure greater
accuracy in the dimensions of the finished case.
On the case being returned a second time to the feeding table, a further intermittent
motion of that table brings the case under a dic of the upper table B¹, when 'the
plunger 3 rises through an opening in the bed A³, and transfers the case from the
feeding table to the die in the upper table.
An attendant now applying to the open end of the case, the projectile, the die table
moves round to bring the projectile under the action of the descending plunger 4.
The plunger, by its descent, thrusts the projectile into the case, which firmly holds it
in place.
The cartridge now completed, moves forward under the plunger 5, by the descent
of which the cartridge is discharged from the die into the receiver.
The intermittently rotating tables may be provided respectively with holes and
dies to receive any desired number of cartridge cases, care being taken that time
enough is allowed to the attendants to feed the machine, as above explained.
The drawings show the machine as fitted with a brake connected with a belt
shifter, an arrangement which it has been found desirable to provide in this class of
machine for arresting promptly the action of the working parts, in case of an accident
occurring.
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 :-
The arrangement of machinery above described for choking or necking cartridge
cases, and inserting and securing in the charged case, the projectile, by the application
of pressure thereto.
D
CTL 1000
NEWTON & SON,
Agents for the Applicant.