AN IMPROVED KNIFE CLEANING MACHINE
Year: 1885

page_text: I, WALTER ALFRED BARLOW of 6 St. Pauls Churchyard in the city of London
Patent Agent and Engineer do hereby declare the nature of the said invention
for AN IMPROVED KNIFE CLEANING MACHINE, a communication to me from abroad
by Gustav Atmer and Carl Möller both of Hamburg in the German Empire, to be
as follows:-
This invention relates to a new or improved knife cleaning machine whereby
the knives are cleaned or polished by means of two circular polishing discs, each of
which is fastened to the free end of a horizontal shaft or axle placed in bearings of
the machine, frame. The centre lines of these two axles do not run in same
direction, but in a broken line, forming an obtuse angle, one with the other in
consequence of which, whilst the discs are on the front side of the machine
compressed against each other, they diverge at the opposite side, and leave a free
space between each other. These discs when rotated by a handle and transmission
as spur wheels, or other suitable mechanical appliance, will polish a knife brought
between them only at the front side of the machine, while the knife is not caught
by the diametral or opposite parts of the discs. By this arrangement the knife
can not be thrown out of the machine by the revolving discs as would be the case
if the discs would touch each other all round, and would catch a knife at same
time at diametral opposite sides. This invention allows of the application of very
small discs.
In front, the knife has to be supported by a roller attached to any suitable
support of the frame.
Danh 90th of NL.. 1007

page_text: I, WALTER ALFRED BARLOW of 6 St. Pauls Churchyard, in the City of London,
Patent Agent and Engineer do hereby declare the nature of this invention a
communication from abroad by Gustav Atiner and Carl Möller, both of Hamburg
in the German Empire, 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 a new or improved knife cleaning machine whereby the
knives are cleaned or polished by means of two circular polishing discs, each of
which is fastened to the free end of a shaft or axle placed in bearings of the
machine frame. The centre lines of these two axles do not run in same direction,
but in direction converging and crossing one another forming together an obtuse
angle, in consequence of which whilst the discs are, on the front side of the
machine, pressed against each other, they diverge at the opposite side and leave a
free space between each other. These discs when rotated by a handle and trans-
mission as spur wheels, or other suitable mechanical appliance, will polish a knife
brought between them only at the front side of the machine whilst the knife is not
caught by the opposite parts of the discs. By this arrangement the knife can not
be thrown out.of the machine by the revolving discs as would be the case if the
discs were to touch each other all round and would catch a knife at same time at
diametrical opposite sides.
This invention allows of the application of very small discs. In front of the
machine the knife has to be supported by a roller attached to any suitable support
of the frame.
The accompanying sheet of drawings illustrates a knife cleaning machine
constructed according to this Invention.
Fig. 1, is a front view of machine with cover in position.
Fig. 2 a plan view with cover removed.
Fig. 3 a transverse central section.
Fig. 4 an isometric view illustrating use of the machine.
a, and b, are the two polishing discs of wood, metal or other suitable material,
placed one opposite the other each fastened to the ends of horizontal shafts or
axles m and m¹ respectively. The axles are placed in brackets or bearings of the
frame in such manner that their axial limes will cross or form a broken line, in
consequence of which the discs receive an oblique position one against the other.
The shafts or axles are brought sufficiently close together that the rims of the discs
will touch each other at one side of the machine and will at this place polish a
knife brought between them. The view Fig. 4 of the drawings illustrates the way
of placing a knife into the machine; the dotted lines indicate the position of the
knife whilst it is to be polished. g. is a rest fitted or not with a roller to support
the back of the knife whilst being polished.
Both discs are rotated in same direction by a handle h and gears h¹³, h³, keyed on
the handle shaft as will be readily understood from the drawings. The discs may
be faced or covered with leather on the polishing faces and polishing powder must
be applied for steel knives.

page_text: By the nut r, the shaft m, can be brought closer to m¹, or be further removed
from the latter and thus is provided means to regulate the pressure exerted by the
discs one against the other or upon the blade of the knife between them.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed, I declare that what
I claim is:-
In a knife cleaning machine, the application of polishing discs that are set
obliquely or on inclined axes of rotation one to the other and that can be rotated
substantially as and for the purpose herein set forth and shown by the drawings.
WALTER A. BARLOW..