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Патент USA US3084444

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April 9, 1963
3,084,434
A. B. HITCHCOCK
RAZOR BLADE HOLDER
iled June 13, 1962
1:1.
-
INVENTOR.
HR THUR B. H/TCHCOCK
H T TORNEY
Unit
htates atent O "ice
3,084,434
Patented Apr. 9, 1963
2
1
therein, and comprising a base plate .11, a top‘ plate 12, a
3,084,434
thumb nut 13 and a conical coiled spring 14.
RAZUR BLADE HOLDER
Arthur B. Hitchcock, 39 Chestnut St, New Britain, Conn.
Filed June 13, 1962, Ser. No. 202,190
5 Claims. (Cl. 30-330)
As is best illustrated in FIGS. 1, 5, 7 (and 8, the base
plate 11, which is preferably stamped from ?at metal
This invention relates to cutting devices, and is di—
rected particularly to an improved safety razor blade
15, about the same length as an ordinary double-edged
safety razor blade, having riveted or otherwise a?ixed
thereto a central, upstanding threaded stud 16.
holder to facilitate the use of an ordinary safety razor
10
blade as a cutting tool.
The principal object of this invention is to provide a
stock, although it could also be of a molded synthetic
plastic material, comprises a ?at clamping face portion
The clamping face portion 15, at each side of the
threaded stud 16, and along its central longitudinal axis,
is formed with a pair of round short protrusions 17 and
simple nazor blade holder enabling the use of such razor
18 which, together with the stud 16 are adapted to be
blades as inexpensive and sharp knives which can easily
received within longitudinal central openings of an ordi
and safely be carried in the purse or pocket or work
basket and which is especially suitable for delicate cut 15 nary razor blade R, as illustrated, for example, in FIG.
8, for holding said razor blade in place.
ting operations requiring unusual accuracy, such as in
As best illustrated in FIG. 3, one edge of the clamping
sewing, cutting paper, paring corns and the like.
face portion 15 of the base plate '11 is free and terminates
A ‘more particular object is to provide a razor blade
somewhat short of the adjacent marginal cutting edge
holder of the above nature comprising a pair of com
portion of the razor blade R, whereas the other side of
plemental plates adapted to clamp upon an ordinary
said face portion 15 is integrally formed with a down
double-edge safety razor blade against each face thereof,
wandly and upwardly-bent marginal rib 19‘, the outer edge
and having along one edge of each plate a marginal rib
20 of which terminates a short distance directly above
portion adapted to cove-r the cutting edges of the razor
the adjacent cutting edge of the blade R to cover and
blade, and means to hold the plates, selectively, either
with their rib portions in overlying position at one side 25 protect the same.
The top plate 12 is of identical structure as the base
of the holder for exposing the razor blade edge for use
plate 11 described above, except that instead of being pro
at the other side, or with their rib portions at opposite
vided with an upstanding stud 16 and protrusions 17 and
sides of the holder for covering and protecting the cutting
18, it is formed with a central circular opening 21 (FIGS.
edges at each side of the blade when not in use.
7 and 8) and side annular openings 22 and 23 for receiv~
Another object is to provide a razor blade holder of the
ing, respectively, the stud 16 and said protrusions 17, 18
chanacter above described wherein the marginal ribs of
as is best illustrated in FIG. 8.
the clamping plates, when in position for exposing a razor
The thumb nut 13 is receivable on the threaded stud
blade edge for cutting, provide a non-slip ?nger grip, fa
16 and is formed with a knurled turning head portion 24
cilitating accurate and safe use of the tool in cutting.
Still another object of the invention is to provide a 35 at its upper end, extending into a reduced diameter cylin
drical body portion 25 of such size as to pass through the
razor blade holder of the above nature which can be
central opening 21 in the top plate 12. An annular
simply and inexpensively made of either metal or a plastic
groove 26 (FIG. 9) is formed in the thumb nut 13 at
material, which will be easy to use, and effective and long
the juncture of the head portion 24 and the body portion
Other objects, features and advantages of the invention 40 25 thereof to receive and hold the smaller diameter end
of the conical spring 14 which surrounds said body por
will be apparent from the following description when
tion 25.
read with reference to the accompanying drawings.
Operation
In the drawings, wherein like reference numerals denote
like parts throughout the sevenal views:
As illustrated in FIGS. 1, 2 and 8, the razor-blade R
45
FIG. 1 is a top‘ view of a razor blade holder embody
is held in clamped relation between the base plate 11 and
ing the invention, shown with a safety razor blade in
the top plate 12 under the actionof the conical compres
place and having both cutting edges covered as when not
sion spring 14 which engages the underside of the thumb
in use.
nut head 13 and the upper surface of the base plate 11.
FIG. 2 is an end view of the holder shown in FIG. 1. 50 Since the marginal rib portions 19 and 20 of the base
FIG. 3 is a view similar to FIG. 2, illustrating how the
plate 11 and top plate 12 extend to opposite sides and
top plate is lifted preparatory to rotating it 180 degrees
thereby cover each edge of the blade R, the holder as
wearing in operation.
to expose a blade cutting edge.
FIG. 4 is a view similar to FIG. 3, but showing the top
plate rotated 90 degrees to a half-way reversal position, 55
to expose a blade cutting edge.
FIG. 5 is a top view of the holder and blade shown in
the position of FIG. 4, indicating by the arrow the direc
tion of rotary movement of the top plate.
shown in FIGS. 1 and 2 is then in condition of non~use
or storage.
When it is desired to use the holder for cutting, it is
only necessary to lift up upon the top plate 12, against
the resilient force of the conical spring 14, so that the
side openings 22 and 23 ‘therein are clear of the protru
sions 17 ‘and 18 of the base plate 11, and then rotate said
FIG. 6 is an end view similar to FIG. 4, but showing 60 top plate 180 ‘circular degrees, as indicated in FIGS. 4,
the top plate in fully reversed position, for exposing one
5 and 6, so that the marginal rib portions 19 of said plates
will both lie along the same side of the holder, whereupon
FIG. 7 is an end view similar to FIG. 2, but showing
a cutting edge of the blade will be exposed as best shown
the par-ts in exploded relation.
in FIG. 6. In this connection, it is to be noted that the
FIG. 8 is a transverse cross-sectional view, taken along 65 height of the protrusions 17 and 18 of the base plate 11
the line 8—8 of FIG. 1, looking in the direction of the
is substantially less than the length of the body portion
edge of the razor blade for use.
arrows, and
25 of the thumb nut 13.
As shown in FIG. 6, the aligned marginal ribs 19 of
FIG. 9 is an enlarged view, in vertical cross-section, of
the base plate 11 and top plate 12 together form a longi
the thumb nut which holds the plates in clamped relation.
Referring ‘now in detail to the drawing, the numeral 70 tudinal ?nger grip of increased thickness, facilitating the
grasping and manipulation of the holder in use. When
10 generally designates a razor blade holder embodying
one cutting edge of the blade R becomes dull, it is a
the invention shown with a safety razor blade R clamped
3,084,434
3
4
simple matter to lift said blade over the protrusions 17
and 18 in the base plate 11, and turn it 180 degrees inde
pendently of the top plate 12 to expose the other cutting
edge for use.’ Replacement of the razor blade R can
plate having a substantially rectangular clamping face por
tion, means for holding the clamping face portions of
said base plate and said top plate in face~to—face clamping
engagement with the doubleeedge razor blade, said base
plate and top plate each having a marginal rib portion
readily be effected by removal of the thumb nut 13, and
extending along one edge thereof and terminating in
spaced, overlying relation to an edge of the razor blade
clamped therebetween, said holding means serving to
separation-of the holder plates, as illustrated for example,
in FIG. 7.
While there has been disclosed in this speci?cation one
selectively maintain said plates so disposed that the mar
form in which the invention may be embodied, it is to
be understood that this form is shown for the purpose of 10 ginal rib portions thereof are parallel and either at the
same side of said razor blade for covering only one cut
illustration only, and that the invention is not limited
ting edge thereof, or at the opposite sides of said razor
to the speci?c disclosure, but may be modi?ed and em
blade for covering both cutting edges, resilient means for
urging said clamping face portions in face-to-face rela
bodied in various other equivalent forms without depart
ing from its spirit. In short, the invention includes all
the modi?cations and embodiments coming within the
scope of the following claims.
Having thus fully described the invention, what is
tion, and means for constraining a clamped razor blade
against relative rotary motion with respect to said base
plate.
5. In a razor blade holder for a double~edge razor blade,
claimed as new and for which it is desired to secure
Letters Patent is:
the combination comprising a base- plate having a sub
p
stantially rectangular clamping face portion, a top plate
having a substantially rectangular ?lat clamping face por
tion, means for holding the clamping face portions of said
base plate and said top plate in face-to-face clamping en
1. In a holder for a double-edged lapertured razor
blade, a base plate having a substantially rectangular
clamping face portion and a central upstanding threaded
stud member, a. top plate ‘having a substantially rectangu
lar flat clampingvface portion and Ia central aperture ?t
gagement with said double-edge razor blade, said base
plate and said top plate each having a marginal rib por
tion extending along one edge thereof and terminating in
spaced, overlying relation to an edge of ‘the razor blade
ting over said'stud member, a thumb nut mounted on said
threaded stud for holding the face portions of said base
plate and said top plate in face-to-face clamping engage
clamped therebetween, said holding means comprising
plate and said top plate each having a straight arched rib
means for selectively holding said plates so disposed that
portion extending long one side edge thereof and termi 30 the marginal rib portions thereof are parallel and either
nating in spaced adjacent relation with the edge of said
at the same side of said razor blade for covering only
razor blade, said nut serving ‘to hold said plates with their
one cutting edge thereof, or at the opposite side of said
razor blade for covering both cutting edges, said holding
arched rib portions thereof parallel and either at the
ment with a razor blade located therebetween, said base
mechanism comprising a threaded stud member extend
same side of said razor blade for exposing the other cut
ting edge thereof and forming a loop-shaped handle for 35 ing upwardly from the center of the clamping face por
tion of said base plate, said top plate having a central
said blade holder, or at the opposite edge of said razor
blade for covering both cutting edges thereof when out
opening for receiving said stud member, a thumb nut
threadedly received on said stud and having a head por
of use.
.
tion and a reduced diameter cylindrical body portion, said
2. A razor-blade holder as de?ned in claim 1, includ
ing a pair of short end studs upstanding from said base 40 opening being large enough to receive said cylindrical
body portion, and a compression spring surrounding said
cylindrical body portion and constrained between the
plate, said top plate having a pair of apertures in \align
ment with and adapted to fit over said end studs for con
straining a clamped razor'blade against relative rotary
motion with respect to-said base plate.
underside of said head portion and the outside of the
3. A razor blade holder as de?ned in claim I1, wherein 45
said thumb nut and threaded stud are substantially longer
than the height of said short end studs to permit said
top plate to be lifted free of said end studs and rotated
180 degrees with respect to said base plate without mov
ing said razor bhade.
4. In a razor blade holder for a double-edged razor
blade, the combination comprising a base plate having a
substantially rectanguilar clamping face portion, a top
face portion of said top plate.
References Cited in the ?le of this patent
UNITED STATES PATENTS
50
1,418,189
1,669,711
2,257,314
2,632,247
3,047,946
Kimball ____________ __ May 30,
Kanter ______________ __ May 15,
Shinn _______________ __ Sept. 30,
Harbison ____________ __ Mar. 24,
Lins _________________ __ Aug. 7,
1922
1928
1941
.1953
1962
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