Improvements in Apparatus for Sharpening Razors and other Edge-tools.
Year: 1894

page_text: Date of Application, 14th Aug., 1894
Complete Specification Left, 14th May, 1895-Accepted, 15th June, 1895
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Sharpening Razors and other
Edge-tools.
I, JOHANN WILHELM CARL KLEEBERG, of No. 1 Schulzweg, St. Georg, in
the City of Hamburg, in the Empire of Germany, Barber, do hereby declare the
nature of this invention to be as follows:-
This invention relates to an apparatus for sharpening razors and other edge-
tools and the objects of the same are to make the sharpening more perfect and to
perform it in a shorter period of time than it was possible in using ordinary grind-
stones or straps.
The improved apparatus for attaining the said objects mainly consists of a
foundation-plate which may be secured to a table or the like by means of a set-
screw. The said foundation-plate is provided with a pair of fixed bearings and
with a pair of movable bearings. In each pair of these bearings is mounted a
grinding-roller. A suitable spring acting upon the movable bearings tends to
move the latter towards the fixed bearings so that the grinding rollers are slightly
pressed against each other. Rotation may be given to the grinding-rollers in
opposite directions by means of suitable gear. When the grinding-rollers revolve
the cutting-edge of the razor to be sharpened rests upon the line of contact
of the said grinding-rollers, whilst the handle of the razor is supported by an
arin extending from the foundation-plate so that the razor cannot overturn or
capsize.
By moving the razor a few times to and fro between the grinding-rollers (in the
direction of the line of contact of the latter) the razor will be sharpened by the
rotating or revolving grind-rollers in a most perfect manner which operation takes
only a few seconds.
One of the grinding-rollers may have a somewhat greater diameter than the
other, but in this case care must be taken that the unequal grinding-rollers have
the same velocity of periphery, so that the same parts of the grinding-rollers will
not always come in contact with each other or with the cutting-edge to be sharpened,
whereby an unequal wear of the grinding-rollers is avoided.
Dated this 14th day of August 1894.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.
Improvements in Apparatus for Sharpening Razors and other
Edge-tools.
I, JOHANN WILHELM CARL KLEEBERG, of No. 1 Schulzweg St. Georg, in
the City of Hamburg and Empire of Germany, Barber, 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 :-
My invention relates to an apparatus for sharpening razors and similar edged
tools and the objects of my invention are to make the sharpening more perfect

page_text: and to perform it in a shorter period of time than is possible with the use of
ordinary grind-stones or straps.
I attain these objects by the mechanism illustrated in the accompanying drawing,
in which
Figure 1 is a side elevation;
Figure 2 an end view
Figure 3 a sectional plan of the improved apparatus; and
Figures 4 and 5 are details to be hereinafter referred to.
Similar letters refer to similar parts throughout the several views.
C
f
Upon a supporting plate 6 which may be secured to a table or the like by means
of a thumb screw a, are mounted two fixed bearings and two movable bearings dd
the latter being connected with each other by means of an arch-piece or frame d'.
The bearings c and d are provided with open ends facing each other to receive the
trunnions of the grinding rolls e and f, so that when the arch-piece or frame d'i
swung away from roller e, both rollers can when necessary be readily removed
from their bearings. A suitable spring g acting upon the arch-piece di tends to
move the movable bearings d d towards the fixed bearings e c so that the grinding
roller is slightly pressed against the other grinding roller e. Rotation may be
given to these grinding rollers in opposite direction by means of a suitable
gear hhhh³ and h. When the grinding rollers revolve, the cutting-edge of the
razor to be sharpened rests upon the line of contact of the grinding rollers whilst
the handle of the razor is supported by means of a bifurcated arm i so that the
razor can not overturn or capsize. By moving the razor a few times to and fro
between the grinding rollers (in the direction of the line of contact of the latter)
the razor will be sharpened by the rotating grinding rollers in a most perfect
manner an operation requiring only a few seconds.
The grinding roller e may have a somewhat greater diameter than the grinding
roller. But in this case the same velocity of periphery must be given to the said
unequal grinding-rollers so that two generatrixes of them will meet each other at
the common line of contact of the grinding rollers only after a certain number of
revolutions. By this arrangement unequal wearing-out of the grinding rollers will
be avoided.
During the sharpening-operation other parts of the grind-rollers come in contact
with each other and the cutting edge to be sharpened.
The movable frame is constantly pressed by means of a spring g towards the
bearings cc, but it is sometimes expedient to vary the tension of this spring. To
effect this the free end of the spring g bears against a pin i¹ of the toothed disc i
journalled in a projection b beneath the supporting plate . The said disc i forms
with the pin, serving at the same time as a handle, a kind of cam, which.
according to its adjustment, causes more or less tension of the spring, so that the
movably journalled grinding roller f may be pressed towards the other grinding
roller e with more or less pressure. A spring pawl engaging with the peripheral
teeth of the dise is designed to hold the latter in the desired position thus securing
a constant tension of the spring.
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 :-
1. In an apparatus for sharpening edged tools, the combination of two grinding
rollers of unequal diameter, a swinging frame for one of said rollers, a spring
acting upon the frame to press its roller against the co-acting roller, and means
adapted to positively revolve both rollers in opposite directions at the same surface
speed, substantially as and for the purpose set forth.
2. In an apparatus for sharpening edged tools, the combination of a supporting
plate, a grinding roll e, revoluble in bearings on said plate, a frame articulated to
the plate and adapted to swing to and from the grinding roll e, a co-acting roll
revoluble in bearings in said frame, the bearings for both rolls having open ends

page_text: facing each other, whereby when said frame is swung back both rolls can be
removed from their bearings, substantially as set forth.
Dated this 14th day of May 1895.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.