Improvements in or connected with Rolls for Making Table Cutlery.
Year: 1891

page_text: Date of Application, 30th Apr., 1891-Accepted, 30th May, 1891
COMPLETE SPECIFICATION.
Improvements in or connected with Rolls for Making Table Cutlery.
I, ISAAC HIRSCH, of 1007 Opera House Block, Chicago, Illinois, United States
of America, Mechanical 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 the method of making a knife or fork by passing a
bar of steel between two rolls, having suitable dies inserted in rolls for shaping
same.
To enable the invention to be properly understood, I will proceed to describe the
same with aid of the accompanying drawings.
Figure 1, is a perspective of my invention.
Figure 2 is a front view of the same.
Figure 3 is a side view.
Figure 4 is a cross section at right angles to the axes of the shafts.
Figure 5 is a cross section parallel to the axes of the shafts.
Like parts are indicated by the same letter in all the figures. A A are the base
plates, upon which rise the standards B B. The said standards are bolted to the
parts AA by the bolts C C, and they are connected above by the bars D D.
Each standard is in the form of an open frame with a large central aperture in
which the bearings are placed. They consist on each side of a lower box E,
provided with the side portions F F, which bear upon the inside of the upright
portion of the standard, and the block G and the bearing proper H. This latter
receives the end of the lower shaft J. Above this is the box portion K, which is
provided with side bearings L, similar to F, and carries the block M, which
supports the box N, in which rests the end of the upper shaft O. Above this is
the inverted box P, and then the block R, and then the box portion S, which has
the side bearing parts T T, similar to the parts L and F.
These bearing
portions T, F and L are provided each with an inner lug T¹, L', and F' on each
side, so as to prevent said boxings or portions from moving laterally on the
standards B B. On the upper portions S S are the rings SI S₁, which receive
the lower ends of the screws U U, which are screw-threaded through the
thimbles U U¹, which are contained within the upper cross portions V V of the
standards B B. Each of these screws has a head with holes W W, whereby it can
be turned. The shafts J and O are enlarged within, so as to form shoulders O₁
and J', which are received against the boxing portions so as to keep the parts in
proper position. On one end of each of the shafts O and J are the gears W' W',
held in position by the keys W2 W2. About midway of the central portion of each
of the shafts is a raised ring X, and on each of the rings is secured a series of
dies X X, and they are secured by means of the screws X³ X³, which are
countersunk and pass laterally through the rings X10 X 20, which are shrunk onto
the parts XX and form between them a groove for the dies.
Y is a table and Y₁ Y¹ the side bars which lie upon said table and are secured to
the standards B B, and converge toward the dies at the point where they engage
each other. The power is communicated to the shaft J in any convenient
manner.
The use and operation of my invention are as follows:
The power is communicated to the shaft J and the same rotated. The
engagement of the gears W'W' causes the two shafts J and O to rotate in opposite

page_text: directions at the same rate of speed. I have employed the kind of gear shown to
secure equality of rotation of the two shafts, and hence permanency of relation of
the dies. The rod of metal to be formed into cutlery-as, for example, into knives,
as shown in the drawings-is put across the plate or table Y between the con-
verging sides Y', and between the dies it passes into the lower or grooved die,
where it is held securely in position during the process of the continued motion of
the dies, and the metal is made conformed to the aperture remaining between the
two opposed portions of the dies. Thus a series of knives is pressed or rolled out
between the two dies as the operation continues. By placing one portion of the
die at the bottom of a groove and the other portion on the surface of a
corresponding elevation, thus bringing the edge of the latter portion against the
sides of the grooves, the knives are cleanly stamped out and their edges sheared off,
so as to make a perfect and finished knife. The arrangement of boxing with the
projecting edges F¹, L', and T', and the shoulders on the shafts, which engage the
portions of the boxing, as indicated in dotted lines in Fig. 3, the parts are kept
securely in position and the boxing portions E, K, and S are given a firm and true
bearing upon the standards B B, so that the shafts are properly placed in position
and free to rotate at whatever altitude with respect to the standards B they may
be supported. By varying the thickness of the blocks G, M, and S the shafts may
he journaled at various positions and at various distances from each other, as
may be desired, and this is rendered necessary by reason of the fact that a large
variety of dies will be required and these dies will differ among themselves as to
thickness. It is desirable, however, that the point of operation should always be
practically in a plane with the table along which the metal is led when the parts
are suitably placed in position. By turning the screws U U the portions of the
boxing may be brought firmly and securely in position, where they will be retained
during the operation of the machine. These dies are all made uniform in size and
shape, interchangeable for any given piece of cutlery, but vary for different pieces.
By inspection of Fig. 2 it will be seen that the die in question was designed for
stamping out metallic knives for table use. When one set of dies is to be removed,
it is only necessary to withdraw the screws X2 X3 and remove the dies and place
others in position, and then adjust the boxing so as to bring the shafts to a proper
distance from each other. It may also be added that the ridge and groove
formation of the dies is further serviceable to keep the dies properly in position
with reference to each other. The inside portion of the frame-shaped standard or
the sides of the aperture in such standards I have spoken of as the inner sides of
the standards, while the exterior sides of the standards are those portions against
which the parts F¹, L' and T' bear.
What is meant above by stating that the dies produce a finished and perfect
knife is not that the knife is absolutely finished in all its details, but that the steel
portion is struck out substantially in the form in which it is to be used, and must of
course be polished and ground &c. By having one portion of the die elevated and
the other depressed, so that one portion sinks into the other, it will be seen that the
entire knife is cut out and its edges sheared off to make a complete and perfect
knife.
Of course the machine is equally applicable to other and similar appliances
included in the general term "cutlery "-as, for example, forks, spoons and the
like.
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. The combination of two shafts with each a pair of rings thereabout, a series of
die-plates extending entirely about each of such shafts and between the rings, such
die-plates consisting of short arc-shaped pieces and provided with suitable opposed
forming-faces and screws through the rings to hold the die-plates whereby such
plates are removably secured to the shafts.

page_text: 2. The combination of rotating shafts, each carrying a portion of the dies, with a
table having converging sides which terminate in the vicinity of the point of
contact of the dies, so that the metal is led across such table directly to the dies at
the point of their contact with each other.
3. The combination of two shafts rotating and geared together, with die portions
upon such shafts, side standards in the form of frames, boxings for such shafts,
which are composed of parts having bearings upon both inner sides of the frame-
shaped standards and one exterior side, and shoulders upon such shafts to engage the
boxings in opposition to their engagement with the exterior side of the standards,
so as to hold the parts in position.
Dhis both 1
A1 1001
FREDERIC PRINCE,
1, Quality Court, Chancery Lane, London, W.C., Agent for Applicant.