Improvements in the Process of and Tools for Forging Table Knife Blades, and similar Articles having Bolsters and Tangs.
Year: 1897

page_text: Date of Application, 13th Apr., 1897
Complete Specification Left, 28th Dec., 1897-Accepted, 19th Mar., 1898
Improvements in the Process of and Tools for Forging Table Knife
Blades, and similar Articles having Bolsters and Tangs.
I, FREDERICK BEIGHTON BROOK, of 147, South Street, Moor, City of Sheffield,
Manager, do hereby declare the nature of my invention to be as follows:-
-
My invention relates to improvements in the process of forging blades with
bolsters and tangs, the object being to enable the output to be increased, to avoid
the necessity of skilled labour, and thus reduce the cost. It refers more particu-
larly to such steel blades as have iron tangs and bolsters welded upon them.
In carrying out my invention I construct a pair of top and bottom dies to be
used in a hammer or stamp, having on each tool a facsimile print of half the
bolster, and a necking edge on the tang side of the bolster.
The blade side of the bolster upon each tool may have a print of the form of
blade or may be left plain as preferred.
The method of proceeding is as follows; I take a piece of steel of suitable size,
and forge it down under the hammer to what is called a "mood" or rough blank,
leaving a short piece of the steel to which the tang iron is to be attached.
I then take a length of iron say for example 5/8 of an inch square and the
prepared "mood" and bring the ends of both to a welding heat, and weld them
one upon the other quickly with a light blow or pressure, I then place the
welded portion upon the bottom tool over the bolster print, and with a few blows
complete the welding and produce the bolster at one heat leaving the tang iron
necked down and ready for drawing out.
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Improvements in the Process of and Tools for Forging Table Knife
Blades, and similar Articles having Bolsters and Tangs.
I, FREDERICK BEIGHTON BROOK, of 147, South Street, Moor, City of Sheffield,
Manager, do hereby declare the nature of this invention and in what manner the
same has to be performed, to be particularly described and ascertained in and by
the following statement:
My invention relates to improvements in the process of forging blades with
bolsters and tangs, the object being to enable the output of such articles to be

page_text: largely increased, to avoid the necessity of skilled labour, and thus to reduce the
cost.
It refers more particularly to such steel blades as have iron tangs and bolsters
welded upon them.
The annexed sheet of drawings illustrates my invention showing both the
process and the tools employed in such process.
Fig. 1, represents the piece of tang iron as it is first welded to the butt of the
steel "mood."
Fig. 2, represents the face of one of a pair of die tools, and section of same.
Figs. 3&4, two views of the partly made blade as it leaves the tools.
Fig. 5, shows the finished tang and bolster.
In carrying out my invention I construct a pair of top and bottom tools or
dies, to be used in a steam hammer or other hammer or stamp, having in the face
of each tool or die, a sunk facsimile of half the bolster B, and a necking edge N,
with an outside incline J, on the tang side of the bolster; one of the faces with a
vertical section through the line xx, is shown in Fig. 2.
The blade side of the bolster, upon the face of each die may have a sunk print P,
of the butt end of the blade as shown but this in many cases is not essential.
"
In the manufacture of table knives for example I first take a piece of steel S,
which has been flattened at one end for the blade, and a piece of square iron I,
bring them to a welding heat and stick them together quickly in the position
shown in Fig. 1, I then place this rough blank or mood" at the welding upon
the face of the bottom die over the bolster print B, and with a few rapid blows
of the top die, I complete the welding and produce the "mood" Figs. 3 & 4, with
the bolster B2, and the neck N2, leaving the tang bit T3, ready for drawing out
as shown in Fig. 5, in which T is the tang, B2 the more perfectly finished bolster,
this latter operation is accomplished in another pair of tools and is not included
in my invention.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed I declare that what
'I claim is: -
1-For use in the manufacture of table blades and like articles having similar
bolsters and tangs a pair of top and bottom dies with recessed prints of half a
bolster B, a necking edge N, and its outer incline J, sunk in each face, and with or
without a blade recess P, as hereinbefore described and shown in Fig. 2 of the
annexed drawings.
2-The process of forging table blades and other like articles having similar
bolsters and tangs, substantially as herein before particularly described and set
forth.