Improvements in Machines for Punching or Stamping Metal.
Year: 1899

page_text: Date of * Application, 30th Dec.,
Complete Specification Left, 28th Feb., 1900-Accepted, 6th Oct., 1900
Date of Application, so Dec., TONY
Complete Specification Left, 28th Feb., 1900-Accepted, 6th Oct., 1900
PROVISIONAL SPECIFICATION.
Improvements in Machines for Punching or Stamping Metal.
THE DAVID KIMBERLEY & SONS TOOL MANUFACTURING COMPANY LIMITED,
Highgate Tool Works, Emily Street, Birmingham, Tool Manufacturers, and
WILLIAM KIMBERLEY, Manufacturer, of the same address, do hereby declare the
nature of this invention to be as follows:-
:-
My machine has reference to improvements in machines for punching or stamp-
ing metal. It has especial reference to such machines as are required to be fixed
in a bench or a vice.
A base or foundation of iron or steel is provided having a tail piece screwed at
its lower portion for affixing to a bench and with a square for use in a vice.
Two levers of equal size are provided with a triangular or other projection at
about three quarters their length and one lever or rocking bar with the projection
quite at the end.
This latter rocking bar or lever is pivotted at one end to the base with its longer
portion in the same line as the base or foundation, a handle is provided at the
opposite end to this pivotted portion and by means of two rigid links the handle
and the longer end of the rocking bar are connected by pivots.
The two duplicate levers are pivotted at the projecting parts and the ends of the
levers at the longer ends are in turn pivotted the lower one to the base and the
higher one to the small rocking bar first described.
At the end of the shortest or outward end of the duplicate levers holes are bored
the upper one to receive a stamp or punch and the lower one to allow the passage
of the piece of material punched from whatever the machine is used upon.
A sliding bed with various sized holes is also applied to the said lower extremity
of the lower rocking bar but the hole under the said bed is fully of the size of the
largest punch to be used. The bed may be secured in the required position by
screws or otherwise.
The handle being depressed pulls down the vertical links which draw with
them the outer end of the smaller rocking bar first described thus tilting up the
nearer end of the top duplicate lever and tilting down the nearer end of the
bottom duplicate lever thus bringing down the punch on to the material to be
punched and forcing a correspondingly sized piece of material through the hole in
the bed.
Dl thin 90ih dov December 1899 and the common seal affixed in our

page_text: improvements in machines for runcing or stamping Metal.
THE DAVID KIMBERLEY AND SONS TOOL MANUFACTURING COMPANY LIMITED,
Highgate Tool Works, Emily Street, Birmingham, in the County of Warwick,
Tool Manufacturers, and WILLIAM KIMBERLEY, Manufacturer, of the same address,
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:-
Our invention nas reference to improvements in machines for punching and
stamping metal.
It has especial reference to such machines as are required to be fixed in a
bench or vice or are more suitably and efficiently operated when so fixed.
A base or foundation of iron or steel is provided having a tail piece screwed and
provided with a washer or washers and a nut for use in affixing to a bench and
with a square for use when fixed in a vice.
Two levers of equal size are provided with a triangular or other projection at
about three quarters their length and one rocking bar with the projection quite
at the end.
This latter rocking bar is pivotted at one end to the base with its longer portion
in the same line as the base or foundation and towards the handle hereinafter
described.
A handle is provided and pivotted to the base at the opposite end to the pivotted
end of the rocking bar and by means of two rigid links the handle and the longer
end of the rocking bar are connected by pivots.
The two duplicate levers are pivotted at the projecting parts and the ends of
the levers at their longer ends are in turn pivotted, the lower one to the base
and the higher one to the small rocking bar just described.
At the end of the shortest or outward end of the duplicate levers holes are bored
the upper one to receive a stamp or punch and the lower one to allow the passage
of the piece of material punched from whatever the machine is used upon.
A sliding bed with various sized holes is also applied to the said lower extremity
of the lower rocking bar or duplicate lever but the hole under the said bed is
fully of the size of the largest punch to be used.
The bed may be secured in the required position by screws or otherwise.
The handle being depressed pulls down the vertical links which draw with them
the longer end of the smaller rocking bar first described, thus tilting up the nearer
end of the upper duplicate lever and tilting down the nearer end of the bottom
duplicate lever thus bringing down the punch on to the material to be punched
and thereby forcing a piece of material corresponding to the size of the punch
through the hole of the bed.
In case the tool should be used for stamping purposes a male and a female die
take the place of the punch and bed respectively.
For cutting purposes two dies are inserted in slides provided on the inner sides
of the base and the smaller rocking lever and stop pins are provided to prevent
any overstraining of the parts when the cut is effected.
The cutting is effected by placing the metal or material to be cut between the
cutting dies and by pulling down the handle the dies are brought together causing
the severence of the rod or other material operated upon.
The stop pins prevent the dies unduly pressing upon each other.
We will now proceed to describe the invention with reference to the accompany-
ing drawings in which

page_text: Fig. 1 shows a perspective elevation of a punching machine constructed on
our improved system.
A is the base or foundation which is fixed to a bench by the screw tail a or
can be held in a vice.
B, is the rocking bar or lever pivotted to the base by the pivot A¹ and to the
links marked C by the pivot B¹.
The handle D is in turn pivotted to the base by the pivot A³ the links marked C
also being attached to the handle D by the pivot D
E is the upper duplicate lever and F the lower duplicate lever and E' and F¹
the pivots which join E and F to the top rocking bar B and the base A respect-
ively and G is the pivot joining E & F near their centres.
H is the punch and J the movable bed plate placed in the bottom lever.
The manner in which the said invention is used is as follows the material
required to be punched is placed between the jaws of the duplicate levers E and F.
On pulling down the lever D the rocking bar is pulled down in the direction
of the base A.
This action tilts up that end of the lever E which is pivotted to the rocking
bar by the pivot E.
The punch H is thereby brought down on to the material to be punched and
a piece corresponding to the punch H and the like sized hole K in the bed-
plate J is forced through the hole K in the bedplate J and also through the
hole in the lower duplicate lever F.
L, L are the dies for cutting metal and the stop pins to prevent the dies from
injury by coming too closely together are marked M, M.
Having interchangeable punches and moving the bed plate to correspond to the
size of punch in use, enables the machine to punch any size of hole the bed plate
may be bored for.
In pressing or stamping the punch and bedplate would give place to a die or
dies.
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 :-
-
(1) In machines for punching pressing and stamping metal the arrangement
of links and levers for operating the punch or stamp or die or dies as herein
described and set forth.
(2) In machines for punching pressing and stamping metal the combination
of a base a rocking lever fulcrummed thereon, with the necessary links pivots and
lever handle as herein described and set forth.
(3) In machines for punching pressing and stamping metal the base A the
rocking bar B, the links C the lever handle D the fulcrummed levers E & F,
The pivots G, A1, A2, E¹ F¹, D¹ the interchangeable punch H the moveable bed-
ulate I
Dated this 28th day of February 1900.
Signed, WILLIAM KIMBERLEY,
For and on behalf of the David Kimberley and Sons Tool Manufacturing Com-
pany Limited, whose common seal was hereunto affixed in our presence,
THE DAVID KIMBERLEY & SONS TOOL MANUFACTURING
COMPANY LIMITED.
DAVID KIMBERLEY,
WILLIAM KIMBERLEY,
}
WILLIAM ARTHUR HILTON,
Directors.