Improvements in Knife Cleaning Machines.
Year: 1893

page_text: Date of Application, 20th July, 1893
Complete Specification Left, 18th Apr., 1894-Accepted, 25th May,
1894:
PROVISIONAL SPECIFICATION.
Improvements in Knife Cleaning Machines.
I, JOHANN GEORG PETER HALLER of No. 31 Bornstrasse, Altona-Ottensen,
in the Empire of Germany, Manufacturer, do hereby declare the nature of this
invention to be as follows:-
This invention relates to an improved knife-polishing or cleaning machine in
which solid rotating press-plates or shells carrying the polishing-disks are movably
arranged in a suitable framing so that the said press-plates or shells, if required,
may be pressed against each other, in order to regulate the pressure of the
polishing-disks upon the knife-blade, whereby the mechanical effect of the polishing-
machine is considerably increased.
In carrying my invention into practice I provide the press-plates or shells on
their outer sides with journals mounted in bearings of suitable supports or uprights
adapted to be drawn together by means of a suitable device connecting the upper
ends of the said supports or uprights and designed also to support the knives
during the cleaning operation. By properly adjusting this device for instance by a
screw-bolt or by the press-plates or shells respectively, the polishing disks carried
by the latter may be pressed towards each other according as desired, in order to
transmit by friction the rotatory motion imparted to one of the press-plates or
shells, to the other.
Between the press-plates or shells and the polishing-disks preferably made of
leather, there are arranged elastic rings within suitable annular grooves of the
press-plates or shells. These elastic rings which support the polishing-disks are
provided preferably with radial notches so as to render the polishing-disks more
liable to yield according to the tapering of the knife blade, in order to effect a
thorough cleaning of both faces of the latter. For the same purpose it is also
advisable to give the inner notched sides of the elastic rings an undulatory form.
The same result may be also obtained by arranging the press-plates or shells
movably on a single common shaft mounted in a suitable frame and provided at
one end with a thumb-screw which is designed to force the press-plates or shells,
In this case a special
and therefore the polishing-disks firmly towards each other.
arm, attached to the frame is provided for supporting the knives while being
cleaned.
OfT.1., 1902
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Knife Cleaning Machines.
I, JOHANN GEORG PETER HALLER, of 31 Bornstrasse Altona-Ottensen, in
the Empire of Germany, 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 relates to an improved knife-polishing or cleaning machine in
which solid rotating press-plates or shells carrying the polishing disks are movably
arranged in a suitable framing so that the said press-plates or shells, if required,

page_text: may be pressed against each other, in order to regulate the pressure of the
polishing-disks upon the knife-blade, whereby the mechanical effect of the polishing
machine considerably increased.
In order that my invention may be more clearly understood I have illustrated it
in the accompanying drawing, in which
Figure 1 is a sectional side elevation of my improved knife-cleaning or polishing
machine;
Figure 2 is a section on the line I II, Figure 1, part of the polishing disk being
broken away for the sake of clearness;
Figure 3, is a side elevation, partly in section, of a modification of my improved
machine,
Figure 4, is a front view of the same, and
Figure 5 illustrates a detail, of two rectified elastic rings between which are
arranged the polishing-disks proper.
Similar letters of reference indicate corresponding parts in the several figures of
the drawing.
a a are two solid press-plates or shells each of which is provided on its outer side
with a journal 6 fixed to a shoulder piece at and mounted in suitable bearings in
the supports or uprights c adapted to be drawn together by means of a suitable
device, for instance, a screw-bolt g and nut h connecting the upper ends of the
said supports or uprights c and preferably designed also to support the knives
during the cleaning operation. By properly adjusting this device, the polishing
disks carried by the press-plates or shells a may be pressed towards each other
more or less as desired, in order to transmit by friction the rotatory motion,
imparted by the aid of a crank k, or otherwise, to one of the press-plates or shells,
to the other.
Between the press-plates or shells a and the polishing disks f preferably made
of leather there are arranged elastic rings e within suitable grooves of the press-
plates or shells a. The elastic rings which support the polishing disks are provided
preferably with radial notches e so as to render the polishing-disks f more liable
to yield according to the tapering of the knife blade, in order to effect a thorough
cleaning of both faces of the latter. For the same purpose it is also advisable to
give the inner notched sides of the elastic rings e an undulatory form, Figure 5.
For the supply of suitable polishing powder, such as finely pulverized pumice-
stone or emery, one of the press-plates or shells a may be provided with an
aperture a², to be closed by a gate or the like, through which the polishing medium
is introduced into the hollow space between the polishing disks f
In the modification illustrated by Figures 3 and 4 the press-plates or shells a are
movably arranged on a single common shaft mounted in a suitable frame or
standard c and provided preferably at one end with a thumb screw 61 which is
designed to force the press-plates or shells a and therefore the polishing disks f
firmly towards each other. In this case a special arm d, attached to the standard c
is provided for supporting the knives while being cleaned.
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. In a knife-cleaning or polishing machine, the combination of the press-plates
or shells (u) carrying the polishing-disks (1) and being provided on their outer
side with a journal (), with the supports or uprights (c) serving as bearings for
the said journals, and an adjustable device, such as a screw bolt, connecting the
upper ends of the said supports, substantially as and for the purpose set forth.
2. In a knife-cleaning or polishing machine, the combination, of the press-plates
or shells (a) carrying the polishing disks (f), on their inner faces, with a common
shaft (b) supported by a suitable frame or standard (c) and provided at its free end
with a thumb screw (61) for adjusting the position of the said press-plates or shells
to each other, substantially as and for the purpose specified.

page_text: 3. In a knife-cleaning or polishing machine having solid adjustable press-plates
or shells designed to carry the polishing-disks, the combination, with elastic rings,
such as e, received within suitable grooves close to the edge of the said press-
plates or shells and designed to support the polishing disks, the said rings being
provided with radial notches on their inner side, substantially as and for the
purpose set forth.
4. In a knife-cleaning or polishing machine having solid adjustable press-plates
or shells designed to carry the polishing disks, the combination, with elastic rings
arranged between the press-plates and polishing disks close to their outer edge, the
inner notched side of the ring being undulatingly formed, substantially as and for
the purpose set forth.
Dated this 18th day of Anril 1894
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.