IMPROVEMENTS IN THE MANUFACTURE OF CUTTING AND STAMPING BLOCKS
Year: 1876

page_text: LETTERS PATENT to John Leber, of Goswell Road, in the County of Middlesex,
for the Invention of "IMPROVEMENTS IN THE MANUFACTURE OF CUTTING AND
STAMPING BLOCKS."
Sealed the 15th December 1876, in pursuance of an Order of the Lord Chancellor,
PROVISIONAL SPECIFICATION left by the said John Leber at the Office of the
Commissioners of Patents on the 23rd May 1876.
JOHN LEBER, of Goswell Road, in the County of Middlesex.
IN THE MANUfacture of CUTTING AND STAMPING BLOCKS."
“IMPROVEMENTS
This Invention consists in certain improvements in the manufacture of blocks on
which the operations of cutting and stamping, as well as that of punching, of what-
ever nature the materials subjected to such operations may be, can be advantageously
performed.
The block is formed by placing a series of layers of paper of a sufficiently hard
texture and substance in a vertical manner within a metallic frame constructed
to hold the same. One side or two sides of such metallic frame is or are moveable,
that is to say, is or are capable of being connected with the other sides of the
frame by means of screws or other suitable appliances. The paper is placed within
the frame in either a dry or moistened state, according to the nature of the paper
employed, and paste or any other suitable adhesive material or materials may be
used between the respective layers of paper, or the paper may be in a state of pulp.
Pressure is then exerted upon the paper either by means of the moveable side of the
frame being screwed up so as to compress the paper to any desirable or possiblo
extent, or hydraulic or other pressure is employed to produce the desired amount
of consolidation. If considered desirable the frame may be dispensed with. The
result of this treatment is that a block is formed which possesses great solidity.
The respective surfaces of the block are then planed or turned, or otherwise
smoothed, so as to be fit for the operations capable of being performed or effected
thereon, such as cutting, stamping, or punching. When the surfaces have been
injured by use their effective condition is readily restored by planing, turning, or
otherwise, as in the first instance. The blocks thus formed are found in practice
to be superior both as to economy of manufacture and use and in point of efficacy
for the purposes before mentioned to the wooden and lead blocks hitherto employed,
whilst the tools employed, whether for cutting, stamping, or punching, are much
less injured than when used upon wooden or lead blocks.

page_text: SPECIFICATION filed in pursuance of the conditions of the Letters Patent and
of an Order of the Lord Chancellor, by the said John Leber in the Great Soal
Patent Office on the 19th December 1876.
JOHN LEBER, of Goswell Road, in the County of Middlesex.
THE MANUFACTURE OF CUTTING AND STAMPING BLOCKS."
"IMPROVEMENTS IN
My said Invention consists in certain improvements in the manufacture of blocks
on which the operations of cutting and stamping, as well as that of punching, of
whatever nature the materials subjected to such operations may be, can be
advantageously performed.
The block is formed by placing a series of layers of paper of a sufficiently hard
texture and substance in a vertical manner within a metallic frame constructed to
hold the same.
One side or two sides of such metallic frame is or are moveable,
that is to say, is or are capable of being connected with the other sides of the
frame by means of screws or other suitable appliances. The paper is placed within
the frame in either a dry or moistened state, according to the nature of the paper
employed, and paste or any other suitable adhesive material or materials may be
used between the respective layers of paper, or the paper may be in a state of pulp.
Pressure is then exerted upon the paper either by means of the moveable side of the
frame being screwed up so as to compress the paper to any desirable or possible
extent, or hydraulic or other pressure is employed to produce the desired amount of
consolidation. If considered desirable the frame may be dispensed with, or metal
bands or strips or plates may be placed on both sides of the block, that is to say, on
the sides of the sheets of paper, and the same secured by means of bolts passing
through the block, or the paper may be agglomerated, as before described, and then
sawn into any desired size and shape, and placed in small frames. The result of
the treatment before described is that a block is formed which possesses great
solidity. The respective surfaces of the block are planed or turned or otherwise
smoothed, so as to be fit for the operations capable of being performed or effected
thereon, such as cutting, stamping, or punching. When the surfaces have been
injured by use their effective condition is readily restored by planing, turning, or
otherwise, as in the first instance. The blocks thus formed are found in practice to
be superior both as to economy of manufacture and use and in point of efficacy for
the purposes before mentioned to the wooden and lead blocks hitherto employed,
whilst the tools employed, whether for cutting, stamping, or punching, are much less
injured than when used upon wooden or leaden blocks.
Having thus described and ascertained the nature of my said Invention, and in
what manner the same is to be perforined, 1 would observe in conclusion that what
I consider novel and original, and therefore claim as being the Invention secured to
me by the said herein-before in part recited Letters Patent is, the manufacture of
cutting and stamping blocks, substantially as and for the purposes herein-before
described and set forth.
In witness whereof, I, the said John Leber, have hereunto set my hand and
seal, this Eighteenth day of December, in the year of our Lord One thousand
JOHN LEBER. (L.S.)