Improvements in the Manufacture of Blades with Bolsters.
Year: 1889

page_text: Date of Application, 2nd May, 1889
Complete Specification Left, 1st Nov., 1889-Accepted, 7th Dec.,
1889
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Blades with Bolsters.
I, ARNOLD JAMES BEAL Redhill Works, Redhill, Sheffield in the County of
York Cutlery Manufacturer do hereby declare the nature of this invention to be as
follows
-
This invention refers particularly to the manufacture of blades provided with
bolsters such as Table Knives, Spear Knives and the like, the object being to produce
solid-bolster blades expeditiously and at reduced cost.
I am aware that blades have been made on somewhat similar lines, but all such
processes have been incomplete and skilled labour has been required to bring them
into shape; now my invention goes further than these said previous methods, and
it consists first in producing a section of flat steel having a longitudinal rib, fillet,
or moulding projecting in a corresponding position on both sides of the sheet or strip,
and representing the bolsters
"
The flat material on one side of the double rib is of a suitable width to produce
the blades, and on the other side to produce the tangs.
Having produced such a section of steel with the rib as described on both sides
thereof, preferably by the process of rolling, I cut the strip into lengths from which
a given number of blades (such for example as four or six) can be made, instead of
cutting it up into separate blades, and I give the required taper to the blade portion
by means of eccentric or mouth-rolls at one operation, I now take the plate so
prepared and cut it up into the desed number of blades which are finished by
ordinary means.
By this process I greatly reduce the amount of manipulation usually required to
produce such blades by ordinary processes
Dated the 1st day of May 1889.
ROBT. F. DRURY,
Agent for the Applicant. i
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Blades with Bolsters.
I. ARNOLD JAMES BEAL Redhill Works, Redhill, Sheffield in the County of
York Cutlery Manufacturer 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 refers particularly to the manufacture of the blanks of Table Knives,
and Forks, Spear Knives, Joiners Chisels and the like, articles having bolsters and
tangs, from a novel section of plate-steel, in contradistinction to forging them
separately, the object being to produce the blanks of such articles with solid bolsters,
expeditiously and at reduced cost.
The annexed sheet of drawings illustrates the method of carrying out
similar letters of reference indicate similar parts where they occur.
my
invention;
Fig. 1, represents a section and plan of a piece of material from which blanks of
the said articles are made.
Fig. 2 section of same material (on smaller scale) after being passed through the
tapering process.
Fig. 3, represents how blades with scale tangs are cut out from said material.
Fig. 4, shows a "round tang" blade blank as cut from said material.
Fichome a steel fork blank and

page_text: Fig. 6, shows a chisel blank cut from said material. I am aware that blades
have been made on plans somewhat resembling mine, but hitherto all such processes
have been incomplete, and skilled labour has been required to bring them into the
perfect shape.
Now my invention goes further than any of these previously proposed methods, and
it consists first in producing a new section of steel, having one portion A suitable
for the production of the blade; a longitudinal rib or moulding B projecting from
both sides of the plate, rod or strip, from which the bolsters are inade; and a part C,
from which the tangs are produced; secondly, in manufacturing blades, forks, chisels
and the like from such material as above described.
In carrying out my invention I prepare a pair of rolls, or more than one pair
if desirable, capable of producing this new section of steel shown in Fig. 1, the
rib B running through the rod or plate longitudinally, which I then cut up into
suitable lengths representing a number of blades or other articles, I find in practice
that a length to produce four or six table knife blades is a convenient size and easy
to manipulate.
These pieces are heated and the parts A and C are passed through or submitted to
the action of a pair of eccentric or mouth rolls, or to other machinery, to give the
required taper to each of the said parts, as shown in Fig 2, but if practicable I
may produce the bevilled edges on parts A and C at the same time that I produce the
rib B. If the ordinary tang, known as "round tang," and shown in Fig. 4 is
required, the part (is not tapered, but left in its original form.
The parts so tapered by eccentric rolling are lengthened by the operation to the
required measurement of such parts as shown in Fig. 2, the original length being
indicated by the marks xx.
The material so prepared is now ready to have the blanks cut out of it, and this is
accomplished by beds and punches of suitable configuration to produce the required
shape of article, either a blade blank with a scale-tang as in Fig. 3; ordinary or
round tang as Fig. 4, Fork blank with either scale or round tang Fig. 5 or Chisel
blank as Fig. 6 or the like.
1 The bolster may be stamped to any shape and the article finished by ordinary
processes
My invention may be applied to the production of other shapes of cutlery with
bolsters not shown in the drawings, but in all cases they are made from the new
section of steel, steel and iron, or like material shown in Fig. 1.
By this method and process of manufacture I greatly reduce the amount of
labour and manipulation usually requisite to produce such blanks with solid bolsters.
Having now particularly described and ascertained the nature of my invention,
and the manner in which the same is to be performed, I declare that what 1
claim is:-
"The manufacture of blanks for table knife blades, forks, and other like bolstered
articles, by first rolling a plate with a longitudinal rib on each side at an intermediate
point of its width, and then cutting such plate transversely into blanks, the flat or
tapered part on one side of the rib forming the blade, and that on the other side
forming the tang."
Dated the 30th day of October 1889.
ROBT. F. DRURY, Fel. Inst. P.A.,
Bank Buildings, George Street, Sheffield, Agent for Applicant.