Year: 1888

page_text: Date of Application, 5th Jan., 1888
Complete Specification Left, 5th Oct., 1888
Complete Specification Accepted, 9th Nov., 1888
A communication from abroad by WILLIAM HAMILTON PAGE, Inventor, and GEORGE
CASE SETCHELL, Manufacturer, both of Norwich, New London County, State of
Connecticut, U.S.A.
I, WILLIAM PHILLIPS THOMPSON F.C.S. M.I.M.E. of the Agency for Foreign
Patent Solicitors 6, Lord Street, Liverpool, and 6, Bank Street Manchester, both in
the County of Lancaster and 323 High Holborn in the County of Middlesex, Civil
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention relates to dies for pressing back, or indenting portions of end wood
blocks, as in the manufacture of Wood Type and Borders, and the object of said
invention is to simplify the operation of making such dies and to provide a method by
which they may be quickly and cheaply produced in various sizes.
The new form of die may be described as a metallic plate having secured thereto, or
formed thereon, projecting punch portions conforming in size and shape to the
depressed portions of the type which it is desired to make.
In making type by use of dyes of this class the die is worked in a reciprocating
power press, and blocks of prepared type wood are fed to it and indented at each
stroke of the press.
In the sheet of drawings hereunto annexed figure 1 represents a die of the simplest
construction for making a gothic letter E, and figure 2 the metal blank from which
said die is made.
Figure 3 is a perspective view of a block of type-wood after having been impressed
by said die.
Figures 4, 5 and 6 show, respectively, front, rear and edge views of the wood
pattern used in the production of said die and
Figure 7 is a face view of the die, intended to illustrate the manner in which the
sharp angles in those portions which are necessarily left as curves by the milling
machine are finished.

page_text: In figures 8, 9, 10 and 11 are illustrated a modification of the invention, in
which is first produced a die substantially like that above referred to and the
projecting punch portions are then transferred to another base plate by brazing
and, finally, the original base is removed in a manner and for reasons hereinafter
explained in detail.
Referring now to figures 1 to 7, the die therein shown is formed from a
rectangular block a of (preferably) hard brass, of one quarter of an inch in thickness,
or thereabouts. b indicates a pattern letter, as commonly used in pantograph
machines, to produce wood-type.
This pattern letter is usually cut in wood and is very much larger than the desired
type, so that any imperfections or irregularities in the hand made pattern will not be
perceptible in the smaller type or die produced therefrom.
In the production of the new form of impression dies these enlarged patterns
have boon utilized in a mannor most readily understood by referring to Figures 4, 5
and 6.
When about to produce a die by the new method strips or blocks c, preferably of
hard wood, are secured to the rear side of the pattern block corresponding in relative
positions to the letter on the opposite side of said block.
The outline formed by strips c on the rear of the block will be the reverse of the
type or letter represented.
This reverse outline pattern is then placed in a pantograph or profile machine
having a swiftly revolving cutter; a blank a is secured in proper position adjacent
thereto and by means of a tracer following strips c and controlling the movement of
said revolving cutter, the face of the metal block a is slowly cut away until only the
projecting portion c¹ is left above the face of the block.
When a pattern has been once provided with strips.c dies of various sizes may be
produced therefrom by adjusting the pantograph machine: the exact proportions being
preserved throughout an entire series of such dies.
Inasmuch as it is necessary to use rotating cutters of considerable size, in the
formation of the metal dies, it is not possible to produce sharp angles in all cases,
but it has been found both practicable and cheap to finish such angles by drilling
through the base block, as at e, and then working out said angles with a square file.
When a die so formed is brought in contact with a block of type wood, and suitable
pressure applied, depressions are made in said wood corresponding to the raised
portions of the die (see figure 3).
In the modification of this Invention shown in figures 8 to 11 the die g is first
formed by the method above described. A separate plate h is then brazed to the face
of the projecting punch portions (see figure 9).
When so secured the original backing or base plate g is remioved by sawing off the
same on line a
, figure 9.
This separates the plates as in figure 10 and leaves the dic as in figure 11, ready
for use. This method of producing dies is sometimes very useful for the reason that
it allows the use of regular right-hand patterns in the pantograph machine, instead of
the reverse pattern first above. described. It has been found practicable to make the
punch portions i from sheet metal stock of the exact thickness of said punches, in
which case the different sections are cut independently and then brazed or rivetted
firmly to the base plate ; making when finished a die having the strength and
sharpness of outline of a solid die.
With dies of the form described Wood-Type may be more rapidly and cheaply
produced than heretofore and the outlines more sharply defined than when cut by the
old and well known methods and machines.
D
I
1000

page_text: DETCHELL, DOLD OI NORWICH, New London County, State
States of America, Manufacturers.
I, WILLIAM PHILLIPS THOMPSON F.C.S. M.L.M.E. of the Agency for Foreign Patent
Solicitors 6 Lord Street, Liverpool & 6, Bank Street, Manchester both in the
County of Lancaster and 323 High Holborn in the County of Middlesex, Civil
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 dies for pressing back, or indenting portions of end wood
blocks, as in the manufacture of wood type and borders and the object of said invention
is to simplify the operation of making such dies and to provide a method by which
they may be quickly and cheaply produced in various sizes.
The new form of die may be described as a metallic plate having secured thereto, or
formed thereon projecting punch portions conforming in size and shape to the.
depressed portions of the type which it is desired to make.
In making type by use of dies of this class, the die is worked in a reciprocating.
power press, and blocks of prepared type wood are fed to it and indented at each
stroke of the press.
In the sheet of drawings accompanying the provisional specification Figure 1
represents a die of the simplest construction for making a gothic letter E, and
Figure 2 the metal blank from which said die is made.
Figure 3 is a perspective view of a block of type-wood after having been impressed
by said dye.
Figures 4, 5 and 6 show respectively, front, rear and edge views of the wood pattern
used in the production of said die and
Figure 7 is a face view of the die, intended to illustrate the manner in which the
sharp angles are finished in those portions which are necessarily left as curves by the
milling machine.
In figures 8, 9, 10 and 11 are illustrated a modification of the invention in which a
die is first produced substantially like that above referred to and the projecting punch

page_text: portions then transferred to another base plate by brazing and, finally, removing the
original base in a manner and for reasons hereinafter explained in detail.
Referring now to figures 1 to 7, the die therein shown is formed from a rectangular
block a of (preferably) hard brass, of one quarter of an inch in thickness, or there-
abouts, indicates a pattern letter, as commonly used in pantograph machines, to
produce wood type.
This pattern letter is usually cut in wood and is very much larger than the desired
type, so that any imperfections or irregularities in the hand made pattern will not be
perceptible in the smaller type or die produced therefrom.
In the production of the new form of impression dies, these enlarged patterns have
been utilized in a manner most readily understood by referring to figures 4, 5
and 6.
When about to produce a die by this new method, to the rear side of the pattern
block b, strips or blocks c are secured, preferably of hard wood, corresponding in
relative positions to the letter on the opposite side of said block.
The outline formed by strips c on the rear of the block will be the reverse of the
type or letter represented.
This reverse outline pattern is then placed in a pantograph or profile machine
having a swiftly revolving cutter, a blank a is secured in proper position adjacent
thereto, and by means of a tracer following strips c and controlling the movement of
said revolving cutter, the face of the metal block a is slowly cut away until only the
projecting portion c¹ is left above the face of the block.
When a pattern 6 has been once provided with strips e, dies of various sizes may be
produced therefrom by adjusting the pantograph machine; the exact proportions
being preserved throughout an entire series of such dies.
Inasmuch as it is necessary to use rotating cutters of considerable size, in the
formation of the metal dies, it is not possible to produce sharp angles in all cases, but
it has been found both practicable and cheap to finish such angles by drilling through
the base block as at e, and then working out said angles with a square file.
When.a die so formed is brought in contact with a block of type wood, and suitable
pressure applied, depressions are made in said wood corresponding to the raised
portions of the die (see figure 3).
In the modification of the invention shown in Figures 8 to 11, the die g is first
formed by the method above described. A separate plate is then brazed to the face
of the projecting punch portions i (see Figure 9).
When so secured the original backing or base plate y is removed by sawing off the
samo on line
x, Figure 9.
This separates the plates as in Figure 10 and leaves the die as in Figure 11, ready
for use.
This method of producing dies is sometimes very useful for the reason that
it allows the use of regular right-hand patterns in the pantograph machine, instead of
the reverse pattern first above described. It has been found practicable to make the
punch portions i from sheet metal stock of the exact thickness of said punches, in
which case the different sections are cut independently and then brazed or rivetted
firmly to the base plate h, making when finished a die having the strength and
sharpness of outline of a solid die.
With dies of the form described Wood-Type may be more rapidly and cheaply
produced than heretofore, and the outlines more sharply defined than when cut by the
old and well known methods and machines.
Having now particularly described and ascertained the nature of the said invention.
and in what manner the same is to be performed, as communicated to me by my
foreign correspondents, I declare that what I claim is :-
1. The within described method of producing impression dies, consisting of, first,
making an enlarged fac-simile pattern of the desired letter, second, of forming ribs on
the reverse of said pattern as described and, third of using said pattern in a
pantograph machine to control the movement of the cutting tool to produce the said
impression die.

page_text: 2. An impression die, consisting of a supporting base plate having secured thereto
and combined therewith, independent punch sections conforming in shape to the
outline and centres of the desired letter, as herein set forth.
3. The improvement in methods of producing impression dies which consists of first
cutting away a block of metal in a pantograph machine to leave projecting portions
corresponding to the outline and centre of the desired letter; second of brazing a
metal plate to the face of said projecting portions, and, third of removing the original
backing, substantially as herein set forth.