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Патент USA US2119264

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‘ May 31, 1938.
G. BARSCH
2,119,264
DEVICE FOR SHARPENING SAFETY RAZOR BLADES
Filed July 27, 1937
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‘May 31, 1938.
2,119,264
G. BARSCH
DEVICE FOR SHARPENING SAFETY RAZOR BLADESv
Filed July 27, 1937
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Patented May 31, 1938
2,1 19,264
‘UNITED STATES PATENT GFFI€E
2,119,264
DEVICE FOR SHARPENING SAFETY RAZOR
BLADES
Guillaume Barsch, Paris, France, assignor to In
dustrieA; G. Allegro, Emmenbrncke, Switzer
land
Application July 2'7, 1937, SerialNo. 156,028
2 Claims.
(Cl, 51---159)
1 The present invention relatesto a device for
sharpening safety razor ‘blades.
. P'I'he device of the present invention is an im
provement .upon the devices of my Letters Patent
:5: Y No. 1,399,241, December 6, 1921; No. 1,863,431,
June 14, 1932, and No. 1,943,156, January‘ 9, 1934,
all for Devices for sharpening the blades of safety
razors.
. The principal object of the present invention is
10" to provide a safety razor blade sharpening device
which is of optimum simplicity of construction
and operation, is highly ef?cient, and can be
economically manufactured.
Other objects and advantages. of the invention
will be apparent from the following speci?cation
and drawings wherein:
Figure 1 is aperspective view. showing the
elements of‘the device disassembled,
20
Figure. 2 is a top plan view of the device,
Figure 3 is a vertical sectional viewon the line
3-3‘ of Figure 2, ‘
I
Figure 4 is a detail vertical sectional View on
the‘ line 4-4 of Figure 2,. but showing the blade
supporting carriage in position for the insertion
25 oriremoval of a blade,
. Figure 5 is a transverse sectional view on the
line 5-5 of Figure 2 with the carriage at the
right-hand or rear end of the device.
‘As is best shown in Figure 1, the present device
30. comprises a body member generally designated
by the numeral it, a carriage l I slidable in» a
trackway in the body member ID, a razor blade
holder l2 adapted to be mounted in the carriage
ll, an end plate 13 pivoted at one end of the
2 body member l0 and a sharpening element I 4
mounted in the body member It. In its normal
position, as best shown in Figure 3, the end plate
l3 closes one end of the body member I t and
the carriage H may only move through its ‘nor
1 mal path of movement for sharpening a blade, .
but when the end plate I3 is swung ‘downwardly
to the position shown in Figure 4, the carriage
it maybe moved Ipartially out of the body mem
berlil so that it will hold the end plate down
member E0, the rear end thereof, is closed by
an upstanding wall 2t, the upper and central
portion of this wall being cut away but its end
portions serving to limit the rearward movement
of the carriage H within the body member.
5
The body member is has a longitudinally ex
tending track 2'2 secured to each side of its lower
wall Iii and, as best shown in Figure 5, each track
22 includes an upwardly facing groove‘ 23 and a
ridge 2%, the groove 23 being innermost with '
respect to the body member.
The sharpening element Hi is obliquely mount
ed on the bottom wall Iii of the body member 10
substantially midway of the length thereof and
preferably includes three sharpening faces of _.
dilferent abrasive qualities. In order that the
sharpening element may be rotatable to have any
one of its faces uppermost, it has pins 26 ex
tending from each end, which pins are journalled
in ears or. trunnions 27 extending upwardly from 20
the opposite edges of a cut-out portion 28 in the
bottom wall of the body member. The portion
of the pins 26 immediately within the ears 2‘!
is three-sided and a flat spring 29 is secured to
the bottom wall It adjacent one of the ears 2?,
the flat spring being adapted to bear upwardly
against one of the ?at surfaces of the pin to
maintain the sharpening body in the position to
which it isturned. Rotation of the sharpening
element i4 may be‘effected by engaging its lower
portion with a ?nger positioned at the cut-out
28' in the lower wall it of the body member.
If desired, a spring such‘ as disclosed in my
above-mentioned Patent No. 1,943,156. may be
used in place of the. hat spring 29 shown in the 35
present drawings.
The carriage H comprises a cross-piece 39 and
side plates 3!. As best shown in Figure 1, the
outer faces of the side plates 3i have strips 32
secured thereto, which strips are preferably 40
formed of hard ?bre and
edges of the side pieces
wardly facing grooves 23
lower edges of the’ side
extend below the lower
3! to move in the up
of the tracks 22. The
plates ii are provided
a single piece of metal and includes a bottom
with inwardly and longitudinally extending
?anges 33 arranged to lie along the upper face
of theinner Wall 2311 of each track groove 23,
thereby tending to steady the carriage in its
movement along the tracks.
A lever 3511s pivoted on the outer face of each 50
side plate 3i at 36, the forward end of each
lever. being provided with a notch Sta to receive
wall l5 and two side walls will, with inwardly
extending. ?anges H3 at the upper ends thereof.
_‘ As bestshown in Figure 1, one end of the body
scribed in my above mentioned Patent No. 1,863,~
431. The rear end ofeach lever 35 is provided 55
Q = and a ‘blade may be removed from. or inserted in
the blade holder 12. Obviously, if the end plate
is moved slightly outwardly by hand from the
position ‘shown in Figure 3, contact of the car
riage H therewith will cause the end plate to
‘ be ‘moved to the position ‘shown in Figure 4.
The body member It] is preferably formed of
the razor blade holder I2 in the manner de
2
2,119,264.
' with a kerf 31 in which is seated one end 38
of a spring wire 39 coiled intermediate its ends
about a pin 48 within the upstanding abutment
4| on the cross-piece 30 of carriage II. By this
arrangement, the forward ends of the levers 35
(the left-hand ends in Figure 1) will be tended
upwardly, though such movement will be limited
by a projection 44 extending downwardly from
the right-hand end of each lever. The ?bre
10 strips 32 have their upper edges cut away as
indicated at 45 to permit the forward ends of.
the levers 35 to swing downwardly from the posi
tion illustrated in Figure 1, as becomes neces
sary when the carriage has a razor blade holder
1,5 l2 therein and is moving in the body member 553.
The cross-piece 30 of carriage ii is provided
at its forward portion with an upwardly extend
ing and overhanging ?ange 59 which has its up
per and outer edge almost directly above the
notches 36 of the levers 35 in which the blade
holder l2 will be mounted. The curvature of the
?ange 56 is such that a blade carried by the blade
holder !2 mounted in the notches 36 may move
freely below the ?ange 50 and without striking
25 against the same. A handle 4| projects upwardly
from the rear portion of the cross-piece 35, the
upper portions of the vertical walls of the handle
being suitably milled so that the user may en
gage it between the thumb and ?ngers of one
30 hand to move the carriage H on the body mem
ber I0.
The blade holder 12 is of substantially the same
construction as the double-edged blade holder
disclosed in my above mentioned Patent No.
1,863,431. More particularly, as best shown in
Figures 4 and 1, it includes pins 53 at each end
thereof adapted to seat in the notches 36 of the
carriage levers 35, each pin 53 carrying at its
outer end a, disc 54 formed of ?bre or other ma
40 terial having some frictional qualities, the disc
including two parallel ?at surfaces 55, so formed
on the disc that'they will extend at right angles
to a blade B supported in the holder. A double
armed lever 56 is secured to the extreme outer
45 end of each pin, each lever 55 extending parallel
with the blade when the latter is clamped in the
holder. The central portion of each lever 56 is
inwardly offset as indicated at 51 in Figure 1
but the remainder of each lever includes concave
guide surfaces 53 and 59, these two surfaces be
ing symmetrical with respect to each other and
with respect to the plane of a blade B supported
in the holder. Each end of each lever 56 is in~
55
clined as indicated at 60 to terminate in a point.
As is the case in my above-mentioned patent
structure, the discs 54 and levers 56 control the
position of the blade B supported in the holder
I2 during the movement of the carriage in the
body member. That is, the discs 54 will contact
60 with the undersurfaces of the overhanging
?anges iii of the body member, while the double
armed levers 56 will contact with an abutment
6'! formed at the forward end of the struck-in
portions 56, and also with an abutment 68 formed
65 by a depression in each overhanging flange H8.
The cooperation of the above-described discs 54
and levers 56 on the blade holder l2 with the
cam track 65 and abutments 51 and 68 of the
body member IE) is fully described in my Patent
70, No. 1,863,431, it only being necessary for an un
derstanding of the present invention to set forth
the cycle of movement of a blade B: during move
ment of the carriage I I with respect to the body
member If], which cycle will be as follows: When
the carriage is at its limit of normal movement
to the left-hand or forward end of the body mem
ber [0, the blade will be in a vertical position
as shown in Figures 2 and 3. When the carriage
is initially drawn from this position and toward
the right or rear end of the frame, and when it
comes adjacent the sharpening element [4 the
blade holder l2 will be turned in a clockwise di
rection (with respect to Fig. 3) until the blade
has reached an almost horizontal position as in
dicated in dotted lines at Ba and so that its lower
edge will trail across the sharpening element [4.
As the blade leaves the right-hand end of the
sharpening body, it will turn further in a clock
wise direction to lie horizontally as at Bb, this
occurring substantially at the instant that the
carriage reaches its right-hand limit of travel.
When the carriage is then moved in the oppo
site direction (forwardly or to the left), the blade
holder will turn slightly further in a clockwise
direction to the position indicated at B0 so that
the right-hand edge of the blade B will be down
ward and will trail across the sharpening ele
ment l4 until the forward end of that element is
reached, whereupon the blade holder will turn
slightly in a counter-clockwise direction to bring
the blade to a horizontal position. Just as the
carriage reaches the limit of this normal forward
movement, the blade holder will turn quickly in
a clockwise direction to position the blade in the
vertical position shown in Figures 2 and 3 and
with its heretofore rearward edge downward.
By this cycle, one side of the blade has been
at least partially honed on both edges, and the
next cycle will cause both edges of the other side
to be similarly treated.
Figures 2 and 3 show the carriage at its limit
of forward or leftward movement and, as has
20
25
30
35
been stated above and as shown in these ?gures,
the blade B is then in a vertical position, this be
ing the only time at which the blade is in such a 40
position. Obviously, with the blade lying in a
vertical plane, one edge thereof is facing up
wardly. Because of the cooperation between the
overhanging ?ange 59 of the carriage H, and the
overhanging ?ange 13 of the end plate I3, it will 45
be impossible for the operator to have his hand
come in contact with the edge of the blade. In
other words, these two overhanging ?anges serve
as a guard during the time that an edge of the
blade is upwardly exposed.
.
50
The end plate [3 of the body member In is
generally ?at with lugs 10 extending inwardly
from its edges, the lugs being apertured as indi
cated at 'H to ?t over studs or pins 12 projecting
from the side walls I’! of the forward end of the
body member ill (the left-hand end in Figs. 1
to 4). The plate i3 is of a height substantially
corresponding to the height of the side Walls of
the body member, so that the forward end of
the body member will be entirely closed by the 60
end plate. A curved overhanging ?ange 13 ex
tends upwardly and inwardly from the end plate,
this ?ange being of such length and curvature
that when the carriage i i with a blade supported
therein is at its forward limit of normal move
ment as has been described above, the above
65
mentioned ?ange l3 and the overhanging ?ange
50 of the cross-piece 38 of carriage II will almost
completely overlie the blade holder and the blade
B supported therein. As is clear from my above
mentioned patent and from the present disclo
sure, it is only when the elements of my device
are in or adjacent this position that the blade
B lies in a vertical plane so that an edge thereof
extends upwardly.
By the structure just de 75
3
2,119,264
scribed the blade will be completely enclosed
in this position so that it will be impossible for a
action of the plunger 16, so that the movement
of the carriage will thereafter be limited in the
user of the device to have his ?ngers come in con
usual manner.
tact with the edge of the blade.
The end plate i3 is normally held in the up
ward position shown in Figures 2 and 3 by reason
of the fact that the outer end 15 of a plunger 16
slidably mounted in the groove 24a formed by
The use of the movable end plate l3 results in
a reduction of the length of the entire structure, CR
the track ridge 24 on one side of the frame mem
10 ber bears against the lower edge of the plate.
As
best shown in Figure 4, a coil Spring 'l'l has one
end thereof bearing on the inner end of the
plunger ‘i6, and its opposite end bearing against
a shoulder ‘l3 struck down from the track ridge
Ell. The spring l1 thus tends the plunger ‘Hi to
outward position.
In order that the plunger will
exert the desired pressure at the lowermost and
innermost portion of the end plate l3 when the
latter is moved out of vertical position, the end
15 of the plunger is in the form of a tongue which
is slightly curved outwardly and downwardly as
illustrated in Figure 4 to extend about the lower
edge of the end plate.
When it is desired to insert or remove a blade
with respect to the blade holder l2, the user may
turn the end plate I3 downwardly from the posi
tion shown in Figures 2 and 3 tothe position
thereby rendering the device more handy and
convenient, particularly in traveling.
It will be understood that the invention is not
limited to the details of construction shown in
the drawings and described in the speci?cation, 10
and that the example of the use of the device
which has been given does not include all of the
uses or” which the device is capable; also, that
the phraseology employed in the speci?cation is
for the purpose of description and not of limita
tion.
I claim:
1. A device for sharpening razor blades includ
ing a body member provided with a trackway and
a sharpening element, a blade supporting carriage 20
movable on the trackway and with respect to said
sharpening element, said carriage including an
element adapted to be manually engaged for
movement of the carriage, said element extend
ing over the blade supported in the carriage, and
an element pivotally mounted on the body mem
her to normally cooperate with said last named
shown in Figure 4, thereby opening that end of
element’to completely surround a blade at one
the body member It. When this has been done,
the carriage ll may be moved outwardly. to the
member, and to serve as a stop in the path of
position shown in Figure 4, in which position the
blade holder l2 may be lifted upwardly and out
of the notches 36 in the levers 35, so that a blade
may be inserted or removed as described in my
above-mentioned patent.
The outward move
ment of the carriage just described is limited by
stops 82 which normally project inwardly from
the end plate [3 and therefore extend in a verti
cal plane when the plate is turned downwardly.
Because of the fact that the lower corners of the
forward ends of the side strips 32 on the carriage
l l are below the pins 12 on which the end plate
swings, the forward ends of the strips 32 will
come into abutting contact with the end plate l3
45 during normal movement of the carriage in the
40
body member in without swinging the end plate
downwardly. In other words, the end plate can
not be swung downwardly merely by contact
therewith of the carriage, but must be positively
moved down by the user. It will also be noted that
when the end plate 13 is in the position shown
in Figure 4, and the carriage II is moved oh the
end plate, the latter will spring upwardly by the
position of said carriage with respect to said body
travel of said carriage, said pivoted element being
movable to a position in which it will permit said
carriage to move beyond its normal path of travel
to enable a blade to be removed from the latter.
2. A device for sharpening razor blades includ 35
ing a body member provided with a trackway and
a sharpening element, a blade supporting car
riage movable on the trackway and with respect
to said sharpening element, said carriage in
cluding an element adapted to be manually en
gaged for movement of the carriage, said element
extending over the blade supported in the car
riage, and an element movably mounted on the
body member to normally cooperate with said
last named element to completely surround a 45
blade at one position of said carriage with respect
to said body member, and to serve as a stop in
the path of travel of said carriage, said movable
element being movable to a position in which it
will permit said carriageto move beyond its nor 50
mal path of travel to enable a blade to be re
moved from the latter.
GUILLAUME BARSCH.
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