close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2116038

код для вставки
"May‘3, 1938.
WR; A. F. OHLENDORF
2,116,038
SAFETY RAZOR BLADE SHARPENER
/’
Filed June 25, 1936
‘
2 Sheets-Sheet l
May 3, 1938.
- '
‘re. A. F. OHLENDORF
SAFETY RAZOR BLADE
SHARPENER
Filed June 25, 1956
J5
_
2,116,038
‘
7
2 Sheets-Sheet 2
2,116,038
Patented May 3, 1938
UNITED STATES PATENT OFFICE
2,116,038
SAFETY RAZOR BLADE SHARPENER
Robert Alexander Ferdinand Ohlendorf, Buenos
Aires, Argentina, assignor, by mesne assign
ments, to Felipe Saettone, B‘vuenos‘ Aires,
Argentina
Application June 25, 1936, Serial No. 87.302
In Argentina July 3, 1935
3 Claims.
(01. 51--59)
The present invention relates to an apparatus
for whetting and sharpening safety razor blades,
and the principal object of the invention is the
provision of a simple, but practical, blade carrying
5 device for use in whetting and sharpening razor
blades.
By practicing this invention it is pos
sible to restore blades which are very much worn
out to ef?cient shaving condition.
There have been many devices for this same
'10 purpose, but the known devices are generally un
which:
desirable, because they are either of complicated
Figure 1 is a plan view of the lower frame of the
blade carrier according to this invention;
Figure 2 is an underneath plan view of the '10
upper frame of the blade carrier according to this
construction, which means that they are rela
invention;
tively expensive and easily broken, or that they
are of simple construction but so designed that
‘is great skill is necessary if the blade is to be prop
erly sharpened.
m”,C
rods serving also as guide members for a sepa
rate whetting or sharpening element.
Additional features of the present invention
will become evident from the following speci?ca~
tion of the safety razor blade sharpener, with
reference to the accompanying drawings, on
,
,
Figure 3 is a plan view of the blade holder, and
Figure 4 is a plan view of the grooved mem
ber, carried by the frames shown in Figures 1
and 2;
The present invention avoids the disadvantages
of the known whetting and sharpening devices
Figure 5 is a plan view of the blade carrier as
illustrated in Figures 1 to 4 in slightly modi?ed
referred to. The apparatus "according to the
present invention is advantageously distinguished
member in dotted lines;
‘from those now on'the market by its extremely
simple construction, and low cost. a The apparatus
has ‘no complicated construction‘ or mechanism
to be easily worn out or broken; it is of almost
unlimited duration. The operation of the appa
ratus is" of such simplicity that it may be per
formed by anybody, the apparatus being so con
structed that a whetting or sharpening contrary
to the cutting-edge of the safety razor blade is
rendered impossible. The whetting operation is
always e?icient and never fails, because the in
clination and the counter-pressure of the safety
razor blade under treatment are so provided for
that perfect‘whetting or sharpening is secured.
form, showing the blade holder and grooved
' 20
' _
Figure 6 is a perspective View of the blade car
rier as shown in Figure 5 with a special whetting
element placed thereon;
'
'
‘
Figure 7 shows by way of example only, a suit
able whetting and sharpening element in plan
view and cross section, respectively;
Figure 8 is a perspective view of a whetting
and sharpening element in a modi?ed form also
shown by way of example only.
In these figures the same reference numerals
refer to like or corresponding parts shown in dif
ferent views.
,
The razor blade Whetter or sharpener, accord
ing to the present invention and as shown on the
The invention consists‘in a device for use in
accompanying drawings, comprises a blade’ car—
whetting or sharpening razor blades, comprising
two superimposed in?exible frames having a rec
rier as shown in Figures 1 to 6, and a whetting or
tangular aperture therethrough for the blade,
slidably arranged blade holding means adapted
and 8.
The blade carrier'device according to the inr~
'40 to support the blade in a plane at right angles
to the frames, and retaining means provided with
a pair of short, ‘relatively narrow notches. into
which the side edges of the blade extend. Thus
frames i are secured together by screws, nails,
whetting or sharpening of the blade can be
=5 effected by moving a finger, or suitable whetting
element, along the frames transverse to the blade
with flexure of the latter during passage of the
?nger or element thereover.
The apparatus according to the invention, also
comprises the feature that the superimposed sup~
porting frames are provided with rods arranged
along the longitudinal edges thereof, said rods
being sufficiently high to permit the safety razor
sharpening element as illustrated in Figures '7
vention consists of two superimposed supporting
frames l of any suitable material each having
one end shaped to form a handle 2.
The two
or any other suitable means that also serve to
secure a spacing frame 3 between them, the spac
ing frame being cut out at the central portion to
provide a ?at space for the purpose of receiving
a blade holder 4 and a retaining member 5. The
frames I each have a rectangular central slot 5
and one or more longitudinal slots 1, the latter 50
for receiving projections 8 provided on the blade
holder 4 whereby the blade holder is guided in its
blade carrier to be placed on a table or flat sur
movement, which can be e?ected by a small
handle or button constituted by one of said pro
face, without said blade'touching the surface, said
jections 8.
‘
55
2
2,116,038
The slidable blade holder 4 comprises a comb
like portion 9 having three projections or teeth
Ill. The same is of sheet material and is slid
ably arranged within cut out portions of the spac
ing frame 3 between the two supporting frames
I, in such a manner that its projections or teeth
It! may be moved to project over the central
slots 6 of the frames l in order to engage the
usual perforations of the razor blade to be sharp
10 ened and to normally carry the latter in a plane
at right angles to said supporting frame, the
blade being readily disengaged by withdrawing
ening by using his own ?nger instead of the special
whetting or sharpening element as illustrated.
The device is used as follows:
Suppose the safety razor blade carrier is to
be used in the condition shown in Figures 1 to 4,
the blade holder 4 is withdrawn, by moving the
projection or button 8 along the slot 1 until the
teeth l0 extend only over less than half of the
rectangular central perforation 6 provided in the
supporting frames I. The safety razor to be
Whetted or sharpened is now inserted in the
notches or grooves 13 of the retaining member
the teeth Ii! of the blade holder 4 from the central ‘ 5 so that the usual perforations of the razor blade
slot or aperture 6 of said frames.
15
7
-
The retaining member is of sheetgmaterial, and
has extensions ll each with a projecting centre
portion l2 and a small notch l3. Thev retaining
member is secured to one of the supporting frames
I in such a manner that the notches or grooves
are situated immediately above the centre of the
side edges of the perforation 6. The grooves re
ceive the ends of the razor blade to be whetted
or sharpened and serve to retain the blade car
ried by the comb like portion 9 of the blade holder
25 4 from sliding on the teeth In of said comb like
portion.
The width of the grooves I3 is preferably so
calculated that a razor blade retained therein may
have a limited movement of rotation around its
535 central axis, but offers resistance to further
movement so as to become ?exed to the correct
sharpening angle during sharpening as herein
after explained.
are at the same level as the projections or teeth
ID of the blade holder 4. The latter is then moved 15
so that said teeth extend through the usual perfo
rations of the blade. The blade is thus held in
a vertical position ready to be submitted to the
action of the whetting element I 4, which is simply
placed upon the upper supporting frame I and 20
slid towards the razor blade, so that when it con
tacts with the latter it will incline and flex the
razor blade, which owing to its resilience will
offer resistance, while with continued movement
it passes over the cutting edge of the blade, ef 25
fecting a whetting action thereon on one side
of the edge, whereupon the other side is similarly
treated by moving the whetting element back to
its initial position. It Will'be understood that the
whetting element has to be passe-d completely .30
over the razor blade, so that the latter by its
own resilience may strike back to its vertical
position, before the whetting element is returned.
A separate whetting or sharpening element 14,
not forming part of the invention, adapted to be
In this manner it is impossible to effect a whet
used in connection with the razor blade carrier
the razor blade. Further, it will be appreciated
that whenthe whetting element is moved to- and
fro several times, both surfaces of the cutting
according to this invention and as shown by way
of example only in Figures 6 and '7 comprises a
simple block of any suitable material of square
cross section, preferably .in the form of a rhom
boidal parallelopiped, having the side surfaces
covered or coated with different materials, e} g.
leather, l5, willow wood, I 6, glass, l1, and slate,
ting operation contrary to the cutting edge of .35
edge on one side of the razor blade are uniformly
whetted or sharpened, and that by simply chang 40
ing the contact surface of the whetting element,
the whetting vor sharpening may be readily ef
fected ?rst with one material such as leather,
and thereafter with another material such as
glass or the like, in order to secure a proper shav
section and may be of the form as shown by way ing condition of the cutting edge of the razor 45
of example only in the Figure 8, in which two blade. In order to whet or sharpen the other
different materials, e. g. leather l5 andrwillow cutting edge of the razor blade, it is not neces
wood l6 are arranged endwise one adjacent to’ sary to touch the same; the blade-carrier, device
the other on a curved surface of the element, the is simply turned over and the opposite surface
opposite side of the latter being provided with thereof as a guide for the sharpening element. 50
small cylindrical rods of glass I 'l and slate l8. When using the carrier device as illustrated in
In this way the element I4 also provides for four Figures 5 and 6 in connection with the whetting
different whetting and sharpening surfaces and and sharpening element l4 of Figure 7, in the
conveniently comprises some kind of a handle I9. Way as clearly shown in the Figure 6, it will be
When using the ?rst described whetting or noted that the bars 20 properly guide the whet 55
sharpening element l4, Figure '7, the blade‘ car
ting element in such a way that the latter when
rier may conveniently be provided with four bars moved to and fro over the razor blade, it con
20 ?xed along the longitudinal edges of the sup
tacts therewith under a certain angle with re
60 porting frames l as shown in Figures 5 and 6,
spect to the position of the blade and thus is still
said bars being sufliciently high to permit the more effective in the whetting and sharpening 60
blade carrier device with the safety razor blade of the same. After completing the whetting and
inserted therein to be placed on a table or the
sharpening operation, the blade holder 4 is with
l8, or the like.
This element I4 may also be of any other cross
45
like, without the latter touching the blade. Said
bars thus support the blade carrier device, and
the handle 2 may be readily dispensed with. On
the other hand and what is more important, the
bars 20 serve as guide members for the whetting
element l4, Figure 7, to be used in connection
with said safety razor blade carrier.
The whetting or sharpening element as shown
in Figure 8 is designed to be used in connection
with the blade carrier according to the Figures 1
and 2, and it has to be stated that with said blade
carrier any person may effect whetting or sharp
drawn, and the blade being in vertical position
may be taken out by hand, without it being neces 65
sary to touch the cutting edges thereof.
From the preceding description it will be readily
understood and perfectly appreciated that the
device according to the present invention, is not
only advantageous owing to its simple construc 70
tion, its low cost and its long duration, but that
it is also more efficient and easier to handle than
most of the known whetting and sharpening de
vlces.
It will be further understood that the present 75
3
2,116,038
invention is not restricted to the particular em
bodiments as described and shown on the ac
companying drawings, but that modi?cations may
be introduced therein without departing from the
scope of the following claims.
Having thus described my invention, I claim
as new and desire to secure by Letters Patent:--
1. A device for use in whetting or sharpening
safety razor blades, comprising, two- superimposed
10 in?exible frames having an aperture therethrough
for a blade, blade holding means slidably ar
ranged between said frames and adapted to be
moved in and out of said aperture and to freely
support the blade within said frames normally
15 in a plane perpendicular to said frames, and
blade retaining means also arranged-between said
frames and provided with a pair of short, rela
tively narrow notches into which the side edges
of the blade extend; and upstanding ribs dis
20 posed on the upper surface of said frames to
accommodate a separate whetting element there
between, sharpening of the blade being effected by
to and fro sliding movement of the whetting ele
ment across the blade with ?exure of the latter
25 during passage of the whetter thereover.
v
2. A device for use in whetting or sharpening
safety razor blades, comprising two superimposed,
rigidly interconnected in?exible frames with one
end thereof shaped as a handle, said frames
30
being spaced apart by an interposed spacing
frame, said frames having an aperture there
through to receive a blade, blade holding means
slidably arranged between said frames and adapt
ed to be moved in and out of said aperture and
35 to freely support the blade within said frames nor
mally perpendicular to said frames, said blade
holding means consisting of sheet material and
comprising a comb like portion adapted to en
gage the perforations of the blade to be sharpened
and a body portion provided with projections ex
tending into longitudinal slots in the ?rst-men
tioned frames for moving and guiding the blade
holder for engaging or disengaging the blade, and
blade retaining means also arranged between said
frames and provided with a pair of short, rela
tively narrow notches into which the side edges
of the blade extend, whereby sharpening of the
blade can be effected by sliding movement of a
person’s ?nger or separate whetting element ‘
along the frames across the blade with ?exure of
the latter during passage of the whetter there
over.
“3. A device for use on whetting or sharpening
safety razor blades, having a slidable blade holder
of sheet material, said blade holder comprising
a comb like portion and a rearwardly extending
body portion with one or more vertically extend
ing projections, a blade retaining member of simi
lar sheet material having lateral extensions each
provided with a short relatively narrow notch,
two superimposed frames for supporting said
blade holder and said retaining member, a spacing
frame between said superimposed supporting
frames providing between the latter the required
space for receiving and housing said blade holder
and said retaining member; a central rectangular
aperture in said supporting frames into which ex
tend said comb like portion of the blade holder
and said retaining member, and Within which the
blade to be sharpened is held and retained during
the whetting or sharpening operation.
35
ROBERT ALEXANDER
FERDINAND OHLENDORF.
Документ
Категория
Без категории
Просмотров
0
Размер файла
531 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа