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Dec. 24, 1946.
E. I; CASE
‘
2,413,169 _
KNIFE SHARPENER
Filed March 15, 1945
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Patented Dec. 24, 1946
2,413,169
UNITED STATES PATENT OFFICE
2,413,169
KNIFE SHARPENER‘
Emerson E. Case, Perry, N. Y.
Application March 15, 1945, Serial No. 582,857
2 Claims. '(Cl. 51-214)
1
2
This invention relates to a knife sharpener,
and more particularly to a knife sharpening rack
from the main body of the top 6 and in this space
which may be constructed to receive one or any
number of knives of varying widths and so ar
ranged that the insertion and withdrawal of a
knife will properly hone the edge to maintain
the knife in good condition.
An object of the invention is to provide a
device suitable for use in kitchens or commercial
_ establishments in which knives can be safely kept 10
readily available for use as desired.
A further object is to provide in conjunction
with such a case sharpening means so arranged
that the passage of the knife blade into and out
of the device will be effective to hone the cutting
is secured against the back wall member 2 a
plurality of blocks 9 having angularly disposed
side walls to which are secured hone members I0,
By reference to Figure 3 it will be observed that
the hone members I0 positioned in the notched
space between two of the block members 9 are po
sitioned one above the other, so that these hone
members I6 intersect as illustrated in Figure 4.
Notches 3 are provided in the top member 6 and
similar notches I2 are provided in the member
I I, the notches 8 and I2 being arranged in pairs
in vertical alignment with the space between
adjacent blocks 9—9 to form slots longer and
wider than the cross-section of the knife blade
edge.
Other subsidiary objects will more particularly
to permit free insertion of the knife.
appear in the course of the following detailed
notches I2 in the member II are resilient spring
description.
members I3 having their free ends extending
1
Secured against the forward end of edge of the
The invention consists in the novel construc 20 downwardly and which are adapted to bear
against the back edge of a knife blade B as the
tion, arrangement and combinations of parts
knife K is positioned in the container.
hereinafter more particularly described and
claimed.
In operation a knife blade B is inserted in one
One sheet of drawings accompanies this specif
of the slots 8 in the top member 6 and as it passes
ication as part thereof in which like reference 25 through the superposed slots Ii in the members 8
characters indicate like parts throughout.
and I2 and the member II its back edge is en
In the drawing:
.
gaged by the resilent spring member I3 which
forces the blade rearwardly so that its cutting
edge engages between the hones I0——IU asso
Figure 2 is a transverse vertical cross-section 30 ciated with that particular pair of slots. By
taken on line 2--2 of Figure 1;
reason of the hones of each pair intersecting as
Figure 3 is a fragmentary perspective view of
illustrated it will be observed that there is no
an upper corner of the device with the top partly
trough bottom for the knife edge to contact but
that the edge successively engages on opposite
broken away and the side removed; and
Figure 4 is a fragmentary plan View looking
sides the superposed hones Ill-J0.
down on Figure 3.
It will also be observed that this device requires
In the embodmient of the invention illustrated
no attention upon the part of the operator with
in the accompanying drawing, a container is pro
respect to the honing operating, inasmuch as the
vided comprising side walls I_I connected at
mere insertion of the knife operates to effectively
hone the edge both on the insertion movement
the top by a narrow back wall 2 associated with
a hinged back wall door portion 3, a bottom 4, a
and on the withdrawal movement by reason of
top 6 and a front transparent panel 5 which
the automatic pressure of the blade by resilient
may be secured in a frame 5'.
member I3 into honing relationship with the hone
An attachment strip I5 having spaced ori?ces
members I£I—Iil.
While in the foregoing description the sharpen
I6 may conveniently be secured to the narrow
back portion 2 by means of which the entire con
ing elements have been referred to as hones, the
tainer can be supported by nails or screws from
invention is not restricted to any particular
sharpening element or device, being adaptable to
a wall surface.
The top member. 6 is preferably formed with
use with ?le members, abrasive powders glued to a
a down-turned lip ‘I at its forward edge adapted 50 supporting base, emery cloth or the like.
to contact the upper face of a member II which
Having thus described my invention, I claim:
1. Knife sharpening rack comprising a con
extends the full width and depth of the container
tainer enclosing a chamber in which to sheathe
between the end walls I-I.
By reference to Figure 2 it will be noted that by
the blade of a knife, a wall of said container hav
this construction the lip 1 spaces the block II 65 ing a slot giving access to said chamber, said slot
Figure 1 is a perspective view of a knife holder
adapted to receive and sharpen several knives;
2,413,169
3
being elongated in a front to back direction and
having its cross-sectional area longer and wider
than the blade which it is adapted to accommo~
date to permit easy insertion of said blade, a pair
of opposed homes within said chamber below said
slot, angularly arranged one above the other with
their adjacent ends lapping, and their working
4
said apex is normally less than the length dimen
sion of the cross-section of the knife blade,
whereby said knife blade is pressed by said spring
toward said bones and guided to a position coin
cident with the bisecting plane of said dihedral
angle should it be inserted inclined with respect
to said bisecting plane.
2. Knife sharpening rack as claimed in claim 1,
faces in planes which form a dihedral angle whose
said spring being a leaf spring ?xed at its upper
apex intersects the area of said slot near the
back end of the latter, and a spring ‘within said 10 end with its free end directed downwardly from
said slot, and said homes being con?ned to a rela
chamber adjacent said hones, ?xed to said con
tively narrow zone above the lower end of said
tainer below the front end of said slot, having a
chamber.
yielding portion extending toward said apex so
EMERSON E. CASE.
that the distance from said yielding portion to
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