Stamp Heads for the Shaping of Metals.
Year: 1885

page_text: Stamp Heads for the Shaping of Metals.
We, ALFRED CHARLES HANDS of Cardigan Works, Belmont Row, Birmingham
in the County of Warwick, Mechanical Engineer, and FRANK PARKES of Coldfield
Works Dartmouth Street, Birmingham aforesaid, Manufacturer, do hereby declare
the nature of said invention for "IMPROVEMENTS IN MACHINERY OR APPARATUS
FOR THE RAISING OF STAMP HEADS FOR THE SHAPING OF METALS," to be as
follows:-
Our invention has for its object the raising of stamp heads used in the shaping,
punching and the fabrication of metals. The raising of the stamp head being
effected in a simpler and more efficient manner than heretofore; and the essential
features of our said invention consists in raising the stamp head of a stamp,
through the medium or intervention of a screw box situated on the end of a piston
rod, and taking into this screw box is a screwed axis carrying the pulley, sheave
or drum over or around the periphery of which, the cord or band attached to the
stamp head passes or is wound. The piston which carries the reciprocating screw
box, works within a steam cylinder; and on the pressing upwards of the piston,
rotary motion is imparted to the screwed axis carrying the pulley by which the
stamp head is raised. The return movement of the parts is effected by a coiled
spring which has become compressed by the forward movement described.
In carrying out our invention we proceed as follows.
hand screw,
The sheave or pulley around which the rope or band attached to the stamp head
passes, is situated upon the near or left hand side of the machine, and is mounted
upon the end of an axis or shaft wormed at one end with a quick threaded right
while near the pulley end, the said axis is collared into annular rings
which work within a thrust box affixed to or forming a part of the framing of the
machine. At the other end of the framing of the machine in the same axial line
as the wormed axis is a steam cylinder with a piston working therein; the piston
rod of the said piston extends through a stuffing box in the front cover of the
cylinder, and at the front or forward end of the said piston rod is a screw box, or
an internally screwed cross head. The arms of the screw box are provided at their
extreme ends with slide rests, which work or slide upon the fixed framing of the
machine; and working within the cross head screw box, is the wormed end of tho

page_text: The
screwed shaft carrying the stamp head raising pulley; so that by the to and fro
movement of the piston within its cylinder, the screw box cross head is reciprocated,
and rotary motion imparted to the pulley axis in virtue of such reciprocation.
The return movement of the parts for the falling of the stamp head is effected by
coiled springs arranged in front of the slides of the cross head; that is, the springs
are enclosed within boxes or cases situated in front of the slide heads on the two
opposite sides of the frame of the machine. The end covering of the cylinder is
provided with an inlet port leading to a transverse steam chest wherein the valve
works. The axial direction of the valve and its valve chest is at right angles to
the axial line of the steam cylinder. The valve piston is somewhat of a plunger
form with a stem running through a gland or stuffing box in the front cover.
steam inlet port to the steam chest is situated in the end casing, while the exhaust
or outlet is disposed in the same axial line as the valve, so that when the valve is
at the front end of its stroke, the ports are perfectly clear and allow the exhaust
to pass out without any interruption. The plunger valve is contracted or throttled
about its middle while the inside edges (off side) of the enlargements on either
side the valve are V-d or cut away so as to admit steam gradually through the
inlet port before which it passes in allowing steam to enter the cylinder for duty;
that is to say, the valve is so formed, that steam is not allowed to pass precipitously
from the stean chest to the side of the piston. This is effected by the peculiar
formation of the inside collar next to the stalk or contracted part, which is V-d or
made angular so that the extreme points of the angles formed by the V or cut
away parts are presented to the port earlier than the contracted or stalk part
of the valve, thus allowing steam to enter the cylinder gradually instead of
precipitously as would occur if no means were devised as described. An air-bole
passes longitudinally through the valve to allow the escape of air confined.
In raising a stamp, steam is admitted through the inlet port into the valve chest
when the valve is moved in front of the second inlet port which allows steam to
be admitted on the right hand side of the piston. The pressure of steam now
exerted upon the piston, presses forward the piston rod and with it the screw box
cross head which reciprocation rotates the screwed shaft and pulley attached to its
end and raises the stamp head through the intervention of a rope or band, and
after the stamp has been raised to the desired height by such rotation, steam is
cutt off and the valve returned by a spring counterpoise weight or other means,
thus opening the outlet ports, and allowing steam to escape without interruption.
The springs compressed by the forward movement of the piston and parts carried
by it now react upon the ends of the cross head and press the parts back to their
normal positions, and thereby allowing the stamp head to fall by its own weight
without any impediment being offered to retard its progress.
The stamp head can be raised to any height according to the requirements of
the work, by admitting more or less steam into the cylinder.
The valve may be moved automatically by links or connecting rods attached to
the movable parts of the stamp, or it may be moved by hand or foot levers.
TL with 1 s T TOOK
ALFRED CHARLES HANDS.
FRANK PARKES.
By Henry Skerrett,
Agent to the Applicants.

page_text: Stamp Heads for the Shaping of Metals.
We, ALFRED CHARLES HANDS of Cardigan Works, Belmont Row, Birmingham
in the County of Warwick, Mechanical Engineer, and FRANK PARKES of Coldfield
Works, Dartmouth Street, Birmingham, aforesaid, Manufacturer, do hereby declare
the nature of said invention for "IMPROVEMENTS IN MACHINERY OR APPARATUS
FOR THE RAISING OF STAMP HEADS FOR THE SHAPING OF METAL and in what
manner the same is to be performed, to be particularly described and ascertained in
and by the following statement :-
"
Our invention has for its object the raising of stamp heads used in the shaping,
punching and the fabrication of metals-The raising of the stamp head being
effected in a simpler and more efficient manner than heretofore; and the essential
features of our said invention consists in raising the stamp head of a stamp through
the medium or intervention of a screw box situated on the end of a piston rod, and
taking into this screw box is a screwed axis carrying the pulley, sheave or drum,
over or around the periphery of which, the cord or band attached to the stamp
head, passes or is wound―The piston which carries the reciprocating screw box,
works within a steam cylinder, and on the pressing upwards of the piston, rotary.
motion is imparted to the screwed axis carrying the pulley by which the stamp
head is raised-The return movement of the parts is effected by a coiled spring
which has become compressed by the forward movement described.
In carrying out our invention, we proceed as follows-
The sheave or pulley around which the rope or band attached to the stamp head
passes, is situated upon the near or left hand side of the machine, and is mounted
upon the end of an axis or shaft wormed at one end with a quick threaded right
hand screw, while near the pulley end, the said axis is collared into annular rings
which work within a thrust box affixed to or forming a part of the framing of the
machine. At the other end of the framing of the machine in the same axial line
as the worined axis is a steam cylinder with a piston working therein; the piston
rod of the said piston extends through a stuffing box in the front cover of the
cylinder, and at the front or forward end of the said piston rod is a screw box, or
an internally screwed cross head. The arms of the screw box are provided at their
extreme ends with slide rests, which work or slide upon the fixed framing of the
machine; and working within the cross head screw box, is the wormed end of the
screwed shaft carrying the stamp head raising pulley; so that by the to and fro
movement of the piston within its cylinder, the screw box cross head is recipro-
cated, and rotary motion imparted to the pulley axis in virtue of such reciprocation
-The return movement of the parts for the falling of the stamp head is effected by
coiled springs arranged in front of the slides of the cross head; that is, the springs
are enclosed within boxes or cases situated in front of the slide heads on the two
opposite sides of the frame of the machine-The end covering of the cylinder is
provided with an inlet port leading to a transverse steam chest wherein the valve
works-The axial direction of the valve and its valve chest is at right angles to the
axial line of the steam cylinder-The valve piston is somewhat of a plunger form
with a stem running through a gland or stuffing box in the front cover-The steam

page_text: inlet port to the steam chest is situated in the end casing, while the exhaust or
outlet is disposed in the same axial line as the valve, so that when the valve is at
the front end of its stroke, the ports are perfectly clear, and allow the exhaust to
pass out without any interruption-The plunger valve is contracted or throttled
abouts its middle, while the inside edges (offside) of the enlargements on either side
the valve are Vd or cut away, so as to admit steam gradually through the inlet
port, before which it passes, in allowing steam to enter the cylinder for duty; that
is to say, the valve is so formed, that steam is not allowed to pass precipitously
from the steam chest to the side of the piston-This is effected by the peculiar
formation of the inside collar next to the stalk or contracted part which is Vd or
made angular, so that tho extreme points of the angles formed by the V or cut
away parts, are presented to the port earlier than the contracted or stalk part of
the valve, thus allowing steam to enter the cylinder gradually instead of precipi-
tously as would occur if no means were devised as described-An air hole passes
longitudinally through the valve, to allow the escape of air confined.
-In-raising-a-stamp,-steam-is-admitted through the inlet_port into a valve chest,
when the valve is moved in front of the second inlet port which allows steam to
be admitted on the right hand side of the piston-The pressure of steam now
exerted upon the piston, presses forward the piston rod and with it the screw box
cross head, which reciprocation rotates the screwed shaft and pulley attached to its
end and raises the stamp head through the intervention of a rope or band, and after
the stamp has been raised to the desired height by such rotation, steam is cut off,
and the valve returned by a spring counterpoise weight or other means, thus
opening the outlet-ports and allowing steam to escape without interruption-The
springs compressed by the forward movement of the piston and parts carried by it,
now react upon the ends of the cross head and press the parts back to their normal
positions, and thereby allowing the stamp head to fall by its own weight, without
_ any impediment being offered to retard its progress.
The stamp head can be raised to any height, according to the requirements of
work, by admitting more or less steam into the cylinder.
The valve may be moved automatically by links or connecting rods attached to
the movable parts of the stamp, or it may be moved by hand or foot levers.
We will now proceed to describe with reference to the accompanying Drawings
the manner in which the same is to be performed.
Figure 1 is a side elevation, and figure 2 is a horizontal section of a machine or
engine, for the raising of stamp heads for the stamping and shaping of metals and
for other purposes. Figure 3 is an end elevation of the same, and figure 4 a
transverse vertical section taken through the dotted lines A B figure 1. Figure 5
is an elevation of the screw, and collar axis, by the rotation of which, a stamp
head is raised or elevated. Figure 6 is a screw box which is connected to the end
of the piston rod, and wherein the quick threaded screw on the end of the rod
figure 5 takes and works. Figure 7 is an end view of the same. Figure 8 is an
elevation, section and end view of the plunger valve, for admitting and cutting off
steam from the cylinder.
The same letters of reference indicate corresponding parts in the several figures
of the Drawings.
a is the bed of the machine, and b is a shaft or axis having mounted upon one
end a sheave, drum or pulley c around which a rope, band or chain attached to a
stamp head, passes and is fixed. The other end of the axis b is wormed with a
quick threaded screw d which works within a screw box ea formed in the middle of
a reciprocating cross head e. That part of the shaft or axis b nearest to the pulley
is collared into annular rings f, which work within a thrust box g made out of the
solid of the bed or frame a. The said thrust box is of the counterpart of the thrust
collared rings f. h is a piston rod, with a piston i at one end, and attached at its
other end to the cross head e so that the whole move together. The said piston i
works within the cylinder k, and the piston rod through the gland or stuffing box j
in front of the cover of the cylinder.

page_text: The arms e of the cross head e are provided with broadened out slide rests e
which work and slide upon a fixed part of the framing of the machine, as represented
in dotted lines in the plan figure 2; and in front of the slide rests e, and between
the shoulders or collars m m, and encircling the rods n n, coiled springs are
disposed, for assisting the bringing back of the stamp head and the other parts of
the machine to their normal positions, although these springs are not absolutely
necessary, from the fact that the gravitating force of the weight of the stamp head,
is generally sufficiently for all practical purposes.
Steam is admitted and cut off from the cylinder by the plunger valve o working
within the steam chest or passage p disposed at right angles to the axis of the
cylinder; and leading to and from the said steam chest are steam ports q. r and 8.
The port q is the inlet passage to the cylinder, the port r is the inlet port to the
steam chest, while the port 8 is the exit port from which steam escapes from the
steam chest and cylinder when the valve is in its backward stroke; and further,
the steam inlet port of the steam chest is situated in the end casing, while the
exhaust or outlet is disposed in the same axial line as the valve; so that when
the valve is at the front end of its stroke, the exit ports are perfectly clear
and allow steam to pass out without interruption.
The plunger valve o is reduced about its middle and marked o*, while the near
side edges of the offside part of the plunger are Vd and marked oo, so as not to admit
steam to enter the cylinder with a rush; that is, by Ving or cutting away that part
of the valve, steam is admitted into the cylinder gradually, as the extreme points
of the V are first presented to the cylinder port earlier than the contracted part o*,
thereby preventing the steam entering with a rush as would occur if no such means
were devised.
The valve plunger o has a stem o³ by which the valve is worked; and passing
through the body of the valve o, a hole o³ is made. This hole is to allow the escape
of air confined within the steam chest on the reciprocation of the valve, for
admitting and cutting off steam to the steam cylinder.
To rotate the sheave or pulley, for the raising of a stamp head, admit steam
through the port r into the valve chest p, and on the middle part of the valve o
coming in front of the second inlet port q, steam is admitted into the cylinder.
The pressure of the steam thus admitted, exerts itself upon the back of the piston,
and presses it to the top of the cylinder, the piston rod carrying the screw box
cross head e e² e³ compels the quick threaded screw d to rotate to an extent equal
to the reciprocation of the cross head, thereby compelling the sheave or pulley
secured to the end of the shaft, to rotate or partially rotate and so raise the head of
a stamp, through the intervention of a rope, band or chain to which it is connected.
Thus by the reciprocation of a piston within its cylinder, a to and fro movement is
imparted to a cross head, having an internally wormed screw box, wherein a quick
threaded screw on the end of an axis or shaft carrying a stamp raising pulley or
arm works.
On the stamp being raised to the desired height, according to the amount of
steam admitted to the cylinder, or according to the amount of forward movement
having been given to the cross head, steam is cut off and the valve returned by a
spring or counterpoised weight attached thereto, to a position that allows the
ports q and 8 to be free to admit of the escape of steam, without interruption. The
springs compressed by the forward movement of the cross head now react and
assist in carrying the parts back to their normal positions; the back movement
thus created prevents any retardation to the stamp head, on its descent.
g
The stamp head can be raised or elevated to any desired height according to the
requirements of the work by admitting more or less steam into the cylinder.
The steam valve may be moved automatically by links or connecting rods
attached to the movable parts of the stamps, or it may be moved by hand or foot
levers.
Although we have described that steam is admitted to the back of the cylinder,
yet steam may be admitted at the front as well as in the back. When so admitted,

page_text: the pressure of steam takes the place of the springs ll, for returning the parts to
their normal positions without retarding the stamp in its descent.
And although we have described that the piston within the cylinder is moved by
steam, yet compressed air, gas or other elastic fluids may be employed with like
effect for the working of the said piston.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed we declare that what
we claim is
First. Raising only, or raising and lowering stamp heads, for the stamping and
shaping of metals, and for other purposes, by means of a quick threaded screw on
the end of a pulley carrying shaft taking and working within a screw box or its
mechanical equivalent, which said screw box or screw box cross head is incapable
of rotation, but is able to move to and fro, through the influence of a piston rod or
other means, substantially as described and illustrated.
Secondly. In steam valve mechanism for the raising of the stamp head,
_consisting of a plunger like valve reduced about its middle, and having near the
front part thereof, V cut away parts to prevent the too abrupt admission of steam
through the cylinder inlet port; which said valve is worked by a rod or stem
.working through a stuffing box; and through the valve, an oblique hole passes,
substantially as described and illustrated.
Thirdly. The construction of stamp head raising mechanism, consisting of a cross
head screw box, working over a quick threaded screw, on the end of an axis or
shaft carrying the stamp raising pulley. The thrust of the shaft being received by
annular collars working within like recesses, and the screw box is propelled forward
by a piston rod, the piston of which works within a cylinder having inlet and
outlet ports and valve chest, wherein the latter, a valve works. The return or
backward movement of the parts being assisted by springs, or by an elastic fluid
admitted on the back of the piston; the parts being arranged, combined and acting
in the manner and for the purpose substantially as described and illustrated.
Dated this fourth day of March 1986
ALFRED CHARLES HANDS.
FRANK PARKES.
By Henry Skerrett,
Agent to the Applicants.