Improved Process for Shaping or 86 Mooding "the Blades of Table Knives and the Analogous Parts of other Implements.
Year: 1898

page_text: Improved Process for Shaping or
86
Mooding
"the Blades of Table
Knives and the Analogous Parts of other Implements.
་
We, THOMAS BOSWELL, and WILLIAM BARKER HATFIELD, both of Hawk Works,
Mary Street, in the City of Sheffield, Manufacturers, do hereby declare the"
nature of our invention to be as follows:-
Our invention relates to the shaping or what is technically known as "mooding"
the blades of table knives, that is, reducing the steel froni its first shape to the
form and thickness of the blade ready for grinding and other finishing purposes.
It is also applicable to the "mooding" of the analogous parts of other implements
such as the blades of chisles, and various surgical instruments having parts
equivalent to blades.
In carrying out our invention we prepare a pair of rolls preferably but not
necessarily of steel, supported in suitable housings, half of the circumferential
working surface of each roll is of larger diameter than the other half, thus
forming a longitudinal step, the section or end view being represented by the half
of a small, and a large circle with their flat sides placed together.
These rolls are geared and revolve together towards the operator and are so
constructed that they can be started by a foot lever, or by other means at will,
and they stop automatically in one position with the edges of the steps together.
In the lower roll we form two circumferential grooves, they commence with
their deepest part in the edge of the step and taper backwards, one is formed
to receive the steel bar and set it down to the correct required size, the other is
formed to finish or "mood" the blade from the steel first operated upon as before
described. The bar of steel is heated and passed into the first groove, the rolls
are started and revolve once, stopping in the original position, the steel being
rolled during the operation to the desired proportions and form, it is then placed
in the second groove and the rolls again caused to revolve, which finishes the
"mood" to the required shape, at one pass. This is a rapid method of "mooding"
table blades, which operation is generally performed by the repeated blows of a
steam hammer.
Improved Process for Shaping or "Mooding" the Blades of Table
Knives and the Analogous Parts of other Implements.
We, THOMAS BOSWELL, and WILLIAM BARKER HATFIELD, both of Hawk Works,,
Mary Street, in the City of Sheffield, Manufacturers, do hereby declare the

page_text: 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 relates to the shaping or what is technically known as "mooding"
the blades of table knives, that is. reducing the steel from its first shape to the
form and thickness of the blade ready for grinding and other finishing processes.
It is also applicable to the mooding of analogous parts of other implements
such as the blades of chisels, and various surgical instruments which have parts
equivalent to blades.
The annexed sheets of drawings illustrates the invention, in which
Fig. 1, represents a pair of rolls, without the housings or gearing, end view,
indicating their peripheral relation on the line of centres.
Fig. 2, front elevation of rolls with jackets and gearing.
Fig. 2, shows the angular position of the rolls when the blank is inserted
previous to the second process.
Fig. 3, enlarged view of piece of square steel, after first process.
Fig. 4, enlarged view of end of steel after the second process, showing edge
view of blade, flattened and drawn out by the action of the rolls.
In carrying out our invention, we prepare a pair of rolls A, and B, supported
in ordinary housings not shown in the drawings; they may be cast in the complete
form if desired, but those shown and which we prefer, are built up in the manner
hereinafter described.
Each roll consists of a body A or B, axles E, and a facing or jacket D, which
is preferably detachable, it fits upon the periphery of the roll and is secured in
position by collars F, which are screwed upon the screwthreaded ends of the
rolls and grip the facings between them.
The rolls are required to be eccentric, upon their faces or the same effect may
be obtained by shaping the jacket D, and we prefer the latter.
Upon these facings which are the working parts, grooves or recesses may be
made as required, the edges form a step G, seen in Fig. 1.
The rolls are geared together by wheels H, and revolve towards the operator,
and the driving mechanism is so constructed that the rolls can be started
by means of a foot lever or like means and will be automatically thrown out
of gear and stop after one revolution in exactly the same position from which
they started, with the edges G, of the step at some distance back from a centre
line drawn through both rolls.
When used for table knife blades, we form one or more tapering grooves either
in one or both rolls to taper the steel as shown in Fig. 3, the finishing process for
shaping the shoulder and tapering the blade is performed upon the plain surface,
the edge being slightly bevelled.
In producing table knife "moods" or blanks we proceed as follows: the bar of
steel which is usually about five eighths of an inch square, is heated and passed
into one of the grooves I, while the rolls are stationary, either up to a gauge,
or as far as the tongs in which the steel is held will permit.
The rolls are then started and make one revolution during which the steel is
seized by the approaching rolls and tapered from the dotted line in Fig. 3, to the
end of the bar, when it is released and ejected or pushed out.
The operator now passes the tapered end between the plain part of the facings
of the stationary rolls as far as the position indicated by the dotted line before
mentioned, and again causes the rolls to revolve.
The edges G of the eccentric and bevelled facings 1), are pressed into the steel
until they pass their lowest point when they commence to diverge, and during
this double movement the shoulder J, Fig. 4 is formed, at the same time the
blade portion K is being tapered by the faces of the jackets D, which completes
the operation of "mooding."
One or more passes through the rolls at each operation, may be made, as found
desirable.

page_text: Our method is more rapid, and the "moods" more regular and perfect, than the
old method of drawing them out by the repeated blows of a strani hammer.
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. The improved process for producing the "moods" of table blades, and
analogous parts of other like implements, as hereinbefore described and set forth.
2.Producing the "moods" of table knife blades by first rolling the steel to the
required shape and dimensions, and secondly rolling the shoulder and flat blade
portion in the manner as herein before described.
Dated the 6th day of February 1899.
ROBT. F. DRURY, C.P.A.
Agent for Applicants, Bank Buildings, George Street, Sheffield.