Year: 1885

page_text: I, WILLIAM RHODES, of Grove Iron Works, Kirkgate, Wakefield, in the County
of York, Machinist, do hereby declare the nature of the said invention to be as
follows:-
This invention relates to improvements in machinery, principally employed for
perforating, by means of an adjustable punch and a fixed die, the sheet brass
galleries, or glass holders of parrafin, or other lamps, and other sheet metal work, of
a similar nature.
To carry out my invention I employ a rising and falling head, which works in
slides, and which head is actuated by a cam, crank, or eccentric, driven by a belt
and pulley. The slides may form two uprights, one at each side of the machine, or
one strong standard at the back of the machine, which is cut away at the part
where the die is operated, may carry the two slides for the head, and the bearings
for the driving shaft at its upper part. This rising and falling head has a vertical
hole through which the perforating punch is fixed, and the head can. be fixed nearer
to or more remote from the die, by means of an adjusting screw.
The sheet brass galleries or other articles to be operated upon are generally
partly cylindrical, and partly hemispherical in form, are placed upon a die which is
fixed either in a horizontal position, or by placing the mandril upon which the die
is fixed at an angle, the die can be adjusted in its brackets, and fixed by means of
set screws at any required angle, for the purpose of perforating the shoulders, or
other portions of the article being operated upon, and which article is caused to
revolve a short distance between each stroke of the punch, according to the space
required between each perforation. The article being perforated is held in a chuck
or similar device, and is caused to revolve as required by means of a pawl and
ratchet, which is actuated from the driving shaft, and rotates the chuck by means
of helical or bevil gearing.
•
When the article being perforated has made nearly one revolution, a notched
disc which revolves simultaneously with the chuck, allows a catch to drop into the

page_text: notch, whereby a lever is set in motion, and withdraws a spring key from the
pulley on the driving shaft, and the machine is thereby stopped, or the machine
inay be stopped at any moment by means of the same lever. A hand lever and
spring holds the article being perforated in its proper position, during the time it
is being operated upon.
The machine herein described is self acting, and when the object for perforation
is placed upon the die, the punch descends and makes one perforation, it then
ascends, and during its ascent the object is rotated by the self acting traverse, a
fixed distance, so that the punch may perforate the second orifice at the proper
distance from the first, and the same operation is repeated until the object is
perforated all round, or as far as may be required.

page_text: Improvements in Machinery for Perforating Sheet Metals.
I, WILLIAM RHODES of Grove Iron Works, Kirkgate, Wakefield in the County
of York, Machinist 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 machinery principally employed for
perforating by means of an adjustable punch and a fixed die the sheet brass
galleries or glass holders of paraffin or other lamps and other sheet metal work of a
similar nature.
To carry out my invention I employ a rising and falling head which works in
slides and which head is actuated by a cam crank or eccentric driven by a belt and
pulley. The slides may form two uprights, one at each side of the machine or one
strong standard at the back of the machine which is cut away at the part where
the die is operated may carry the two slides for the head and the bearings for the
driving shaft at its upper part. This rising and falling head has a vertical hole
through which the perforating punch is fixed and the head can be fixed nearer to
or more remote from the die by means of an adjusting screw.
The sheet brass galleries or other articles to be operated upon which are generally
partly cylindrical and partly hemispherical in form are placed upon a die which is
fixed either in a horizontal position or by placing the mandril upon which the die
is fixed at an angle the die can be adjusted in its brackets, and fixed by means of
set screws at any required angle, for the purpose of perforating the shoulders or
other portions of the article being operated upon, and which article is caused to
revolve a short distance between each stroke of the punch according to the space
required between each perforation. The article being perforated is held in a chuck
or similar device and is caused to revolve as required by means of a pawl and
ratchet which is actuated from the driving shaft and rotates the chuck by means
of helical or bevil gearing.
When the article being perforated has made nearly one revolution, a notched
disc, which revolves simultaneously with the chuck, allows a catch to drop into the
notch, whereby a lever is set in motion and withdraws a spring key from the pulley
on the driving shaft, and the machine is thereby stopped, or the machine may be
stopped at any moment by means of the same lever.
A hand lever and spring holds the article being perforated in its proper position
during the time it is being operated upon.
The machine herein described is self acting and when the object for perforation
is placed upon the die the punch descends and makes one perforation, it then
ascends and during its ascent the object is rotated by the self acting traverse a
fixed distance.so that the punch may perforate the second orifice at the proper
distance from the first and the same operation is repeated until the object is
perforated all round or as far as may be required.

page_text: In order to enable my invention to be fully understood I will proceed to describe
the same with reference to the accompanying drawings in which
Figure 1. represents a front elevation of my improved perforating machine.
Figure 2 represents a side elevation of the same.
The main driving shaft of the machine A is geared by means of the bevil wheels
B. B to the shaft C which shaft actuates the crank or eccentric which imparts the
necessary reciprocating motion to the rising and falling punch-head D, by means
of the connecting link E. The head D works in V slides F which are secured to
the framework G by strong bolts and nuts.
The elevation at which the punch works or the height at which it works from
the horizontal centre line of the mandril is regulated by means of the screw H
actuated by the hand wheel J, and by means of which the block K is raised or
lowered. The height of the block K which is jointed to the link E regulates the
height of the punch-head which is carried and actuated by this link.
The whole of the rising and falling punch-head D and the slides in which it
works are mounted upon the face of the frame G at the line L, upon a swivel or
upon a circular recessed bed in order to allow the punch-head with its slides to be
turned aside out of its vertical position, as shown in the dotted lines and fixed to
work at any required angle.
When properly adjusted at the required angle the slides are held fast in this
position by large bolts M.
In consequence of the reciprocating motion of the punch head being communicated
through bevil wheels in the manner described the head will operate equally well at
an angle as in a vertical direction.
The perforating tool or punch N is fixed in the holder O, and this holder is
capable of a slight lateral adjustment as the hole in the boss of the punch-head to
which it is secured has lateral space provided, and the tool holder when adjusted
in its proper position is screwed fast by means of the nut P.
The sheet metal object to be perforated is first dished, spun, or stamped into its
required form and is placed upon one end of a mandril U which is turned to fit inside
the object to be perforated and is bolted to the upright standard T.
The upper
part of this mandril consists of an oblong strip of steel R. let into the mandril and
recessed to receive the perforating tool N when it has passed through the sheet
metal thereby forming a die. The object to be perforated Q is held in position on
the mandril U by means of a cupped holder V which presses against the object and
is mounted in a socket formed in the shaft S which shaft forces the cupped holder
against the object Q by means of pressure received from a spiral spring which is
placed upon the shaft at W or by a similar device.
A rotary motion is given to the object being operated upon, to a fixed distance
after each stroke of the punch, by means of two pins fixed in the cupped holder V
which fit into corresponding holes in the object to be perforated, the mandril
remains stationary.
The shaft S with the holder V is rotated by means of the catch wheel X which
is actuated a regulated distance at each stroke of the punch by means of the pawl Z,
which receives motion from the adjustable cam C placed upon the main shaft A
the pawl and cam being connected by the rod A¹
When it is necessary to use a vertical mandril instead of the horizontal one
herein described or a mandril placed vertically with surrounding flanges the shaft
which carries the mandril passes through the table of the machine and is rotated a
given distance after each stroke by means of bevil or helical gearing actuated by
a pawl and ratchet wheel.
In order to stop the rotation of the object being perforated at or near the end of
a revolution, a flange Y is fixed upon the shaft S which flange has a portion cut
away to receive the projection or stud D¹ which is fixed to the lever E, and which
at a certain part of the revolution of the flange drops into the recess.
When the stud D₁ drops into the recess in the flange Y a spiral spring K¹,
whereby the lever E is actuated, pushes forward the rod G¹and by means of the

page_text: levers H and the link J the wedge shaped end of a catch engages and forces out
of its seat in the boss L' a key (which key when not thus withdrawn is held in
position in the key ways of the boss L' and the shaft A by means of a spiral spring
operating upon the end of such key) but, when withdrawn in the manner herein-.
before described the driving pulley M¹ to which the boss is attached is allowed to
revolve freely upon the shaft A and the machine is thereby stopped. The machine
may also be stopped at any part of a stroke or revolution of the mandril by means
of the lever G¹ independently of the lever E'.
To remove the object which has been perforated from the mandril or to place a
fresh object thereon the cupped holder V is drawn back by means of the lever and
handle B¹
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 ist
1. The combination and general arrangement of parts forming a machine for the
perforation of sheet metals in the manner substantially as herein described and
represented in the accompanying drawing.
2. In a perforating machine for sheet metals the adjustable punch head with the
slides in which it works which may be placed and fixed to work at a required angle
substantially as herein set forth and represented in the accompanying drawings.
3. The mandril of a perforating machine which has a die let into its upper
surface or where required and upon which mandril the object to be perforated is
rotated in the manner described and represented in the accompanying drawings.
4. In a perforating machine for sheet metals the method of and apparatus for
stopping the rotation of the object being operated upon at or near the end of its
revolution upon the mandril substantially as described and represented in the
accompanying drawings.