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Патент USA US2403407

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.July 2,' 1946. '
'
'
„1_ SQNNE
MECHANICAL
Y
2,403,407
RAZOR-
`
Filed Jan. l, 1944
(fif'QÓ
~ «7fc`9.§b
i INVENTOR.
JOHN'SONNE
ATTORNEYS
Patented July 2, 1946
2,403,407
UNITED STATES PATENT OFFICE
2,403,407
MECHANICAL RAZOR
John Sonne, Cleveland, Ohio
Application January 1, 1944, Serial No. 516,618
11 Claims.
(Cl. 30-43)
1
2
The ¿present improvements relate to hair clip
Fig. 5 is an end View of the latter;
Fig. 6 is similarly a plan view of the inner
pers or mechanical razors of the type character
ized by having two cylindrical shells, one within
the other, wherein such inner shell is oscillatorily
shell by itself;
`
Fig, ’7 is an end View of such inner shell; and
Fig. 8 is a broken elevational View of a modi~
movable instead of reciprocable in order to coact
with cooperative cutting edges in said shells re
spectively. One construction of so-called safety
‘ ñed form of the inner shell.
‘The several operative parts of the device are
housed within a suitable casing l which may be
made of metal or plastic material and will be
so shaped as to be conveniently grasped by the
hand of the user. The main driving element of
the device is a spindle 2 that is carried by a sleeve
razor comprising such an arrangement of shells
is disclosed in my Patent No. 21,052,495, dated
August 25, 1936, such razor having the outer
shell provided with a longitudinal slot the edges
of which constitute cutting edges, and the inner
shell provided with groups of cutting edges adapt
3 fitted in a central longitudinally extending bore
4 in the casing. Intersecting su-ch bore at the
ed to cooperate with edges in the oute-r shell, the
cutting edges in such groups being formed in rel
atively spaced slots in the inner shell.
I have now discovered not only that improved
.A forward end of the device is a recessy 5 of cylin
" drical form wherein the cooperating shells that
constitute the cutting members of the device are
mounted, as will be presently described. At the
opposite end of bore :l the sleeve 3 is threaded
to engage a nut G ñxed in the casing, so that
20.
inner shell, but that such rearrangement very
by rotating the sleeve through the medium of a
greatly facilitates the use of the device as a razor,
knob 'i on its corresponding end said sleeve may
i. e. for closely clipping the hair from a. person’s
be advanced or retracted longitudinally of the
cutting action ycan be obtained by providing the
groups of cutting edges in the outer shell and
the longitudinal slot with cutting edges in the
face.
Furthermore, I have found a very con
siderable improvement is effected, where the
bore.
groups of cutting edges are thus provided in the 26
o-uter shell, by interconnecting such groups, i. e.
by forming the cutting edges in question between
The means whereby spindle 2 is driven form no
part of the present invention.
Thus, while the
rear end is shown as being connected through a
coupling 8 with a flexible shaft 9, a direct motor
drive may be substituted if desired. In such case
longitudinally spaced recesses in the respective
sides of a longitudinal slot in the shell.
30 the casing would be shaped to include the neces
To the accomplishment of the foregoing and
sary small electric niotor, as need not be explained
related ends, said invention, then, consists of
further.
the rmeans hereinafter fully described and par
The outer shell members which form the dupli
ticularly «pointed out in the claims.
,
cate cutting elements are seated in the cylindrical
The annexed drawing and the following de
recess 5 at the front end of the casing I, and
scription set-forth in detail certain mechanism
comprise two approximately cylindrical portions
embodying the invention, such disclosed means
i0, the detailed construction of which is best
constituting, however, but one of various me
illustrated in Figs. 4 and 5. The opposed edges
chanical forms in which the» principle of the in
of such shell-portions when seated in the recess
vention may be used.
40 are designed to extend into the outwardly fac
In said annexed drawing:
ing opening of such recess so as to leave a longi
Fig. 1 is a top plan View of a device embodying
tudinal slot between such edges. The latter are
my present improvements;
furthermore formed with longitudinally spaced
Fig. 2 is an end elevation thereof as viewed from
recesses Il whereby two opposed series of corre- `
the left in Fig. 1;
45 spondingly spaced cutting edges E2 are formed.
Fig. 3 is a central section, the plane of such
As best shown in Fig. 2, such cutting edges on
section being indicated by the line 3_3 Fig. 1;
the o-ne side of the slot are staggered in relation
Fig. 3a is a duplicate of one end of such sec
tional view showing the parts in a diiîerent oper
ative position;
Fig. 3b is a broken sectional view of one end
of the device, the plane of the sectionbeing indi
cated by the line IJ-b, Fig. 1;
Fig. 4 is a plan view of one of the components
of the outer shell by itself; \
to those on the other.
'
The component portions It of the cylindrical
outer shell are held in place in the casing by the
inner shell I4, the detailed construction of which
is best shown in Figs. 6 and 7. However, before `
further describing such inner shell it will be noted
that the portions of the outer shell I0 are formed
55 midway 7`between the ends with rearwardly ex
2,403,407
severed as it is engaged between the spaced C1117
ting edges thereof and the continuous cutting
tending radial projections l5. These projections,
which are of arcuate form in cross-section, are
edges of the inner oscillatory shell.
received in an annular chamber i6 in the casing
The cutting
edges in the inner shell need not necessarily be
adjacent the forward end of sleeve 3, such end
formed by longitudinally opposed edges but may
being rounded to engage the inner faces of the Ul be formed independently as by providing a series
projections and act as a wedge member to force
of apertures 25 in the modified construction of
the same apart when the sleeve 3 is advanced or
shell 26 illustrated in Fig. 8. In such construc
to permit such projections to be drawn together
tion a plurality of series of such apertures 25 will
by the action of a spring i8 which encircles the
be provided in the shell.
10
same when said sleeve is retracted.
Other modes of applying the principle of my
The ends of the projections wherewith the
invention may be employed instead of the one
spring I8 engages are transversely grooved to
explained, change being made as regards the
provide a seat for said spring, and this seat it
mechanism herein disclosed, provided the means
will be observed lies back of the rounded end oi
stated by any of the following claims or the equiv
sleeve 3. Accordingly the action of the spring
alent of such stated means be employed.
will be to rock the shell members lil about such
I therefore particularly point out and distinctly
end as a fulcrum and thus insure their close iit
ting contact with the walls of the recess 5. It
claim as my invention:
1. In a device of the character described, the
will further be seen that by adjusting said sleeve
in one direction or the other -the component mem
bers lll of the outer shell will be rotatably shifted
combination with a cylindrical shell having plu
20 ral series of longitudinally spaced cutting edges
which face each other and are adapted to be
brought in contact with the skin of a person to
permit hair to enter said shell; of a second shell
oscillatorily mounted within said iìrst shell and
in the recess 5 to vary the width of the slot be
tween, the cutting edges i2 as the latter lie ex
posed in the open side of the recess 5 in the
casing. Such cutting edges are preferably formed 25 having a longitudinal slot, the respective sides of
such slot constituting uninterrupted cutting edges
adapted to cooperate with such spaced cutting
by grinding away the outer surface oi the mem
bers I6 along the slot and the adjacent end sur
iaces of the casing are contoured so as to form
a substantially continuous convex curve with the
edges.
edges in said first shell.
2. In a device of the character described, the
30 combination with a cylindrical shell having plu
Referring now to the construction ci the inner
ral series of longitudinally spaced cutting edges
shell id, this is in effect a one-piece cylindrical
which face each other and are adapted to be
member formed with a longitudinal slot 2i) which
brought in contact with the skin oi a person to
in the assembled device is disposed in alignment
permit hair to enter said shell, such edges in one
35
with the slot in the outer shell bounded by the
series being in staggered relation to the edges in
spaced cutting edges i2. The edges oi such slot
the other series; of a second shell oscillatorily
2B are shaped in such a manner as to form cut
ting edges that are adapted upon oscillation, to
mounted within said first shell and having a lon
gitudinal slot, the respective sides of such slot
cooperate with the respective series oi' cutting
constituting uninterrupted cutting edges adapted
40
edges l2 provided in the outer shell.
to cooperate with such spaced cutting edges in
A suitable section or sections 2l, such as shown
said first shell.
at its respective ends of such inner shell lâ are
3. In a device of the character described, the
cut free of the latter except adjacent the slot 2t
combination with a cylindrical shell having a
therein and are sprung slightly outwardly as
longitudinal slot formed with longitudinally
shown in Fig. 7. These sections accordingly con 45 spaced recesses in its respective sides, thereby
stitute arcuate spring members which when
forced together, incidentally to placing ‘the inner
shell within the outer shell, spring into oomple«
providing two opposed series of correspondingly
spaced cutting edges which face such slot and
are adapted to be brought in contact with the
mentary recesses 24 in the members IiiV of the
skin of a person to permit hair to enter said
outer shell (see Fig. 3b), and tend to press such 60
shell; of a second shell oscillatorily mounted
forward slotted face of the inner shell into close
within said ñrst shell and having a longitudinal
contact with the slotted face of the outer shell to
slot, the respective sides of such slot constituting
compensate for eventual wear and prevent excess
uninterrupted cutting edges adapted to cooperate
reciprocal motion. Accordingly the cutting edges
with such spaced cutting edges in said first shell.
of such slots will at all times be held in close 55
4. In a device of the character described, the
cooperative relation.
combination with a cylindrical shell having a
For effecting oscillation of lthe inner shell, a
longitudinal slot formed with longitudinally
longitudinally elongated recess 22 of general oval
spaced‘recesses in its respective sides, thereby
shape is formed in its rear wall, i. e. the wall`
providing
two opposed series of correspondingly
opposite the slot 29, such recess being disposed 60 spaced cutting
edges which face such slot and
to receive an eccentric pin 23 on the adjacent
end of spindle 2. Rotation of the latter will ac
cordingly impart oscillatory movement about the
inner shell within the outer shell, the amplitude
of such oscillation beingl adjusted to bring tlhe
respective cutting edges of slot 2i) into coopera~
tive relation first with the one series and then
the other of spaced cutting edges of the outer
shell members I0.
The manner of using my improved mechanical
razor should be obvious. The rounded front end
of the casing I is brought into contact with the
skin of the user and moved in a transverse direction thereacross. Incidentally, the hair or beard
will enter the outer cylindrical shell and will be
are adapted to be brought in contact with the
skin of a person to permit hair to enter said
shell, such edges in one series being in staggered
relation to the edges in the other series; of a
second shell oscillatorily mounted within said
first shell and having a longitudinal slot, the re
spective sides of such slot constituting uninter
rupted cutting edges adapted to cooperate with
such spaced cutting edges in said ñrst shell.
5. In a device of the character described, the
combination with a cylindrical shell having a
longitudinal slot formed with longitudinally
spaced recesses in its respective sides, thereby
providing two opposed series of correspondingly
2,403,407
5
spaced cutting edges which face such slot and
are adapted to be brought in contact with the
skin of a person to permit hair to enter said shell;
means adapted to adjust the distance lbetween
such opposed series of edges; and a second shell
_oscillatorily mounted within said iirst shell and
having a longitudinal slot, the respective sides
of such slot constituting uninterrupted cutting
against the portion of said first shell thus pro
vided with cutting edges.
9. In a device of the character described, the
combination with a cylindrical shell having
plural series of longitudinally spaced cutting edges
adapted to be brought in contact with the skin
of a person to permit hair to enter said shell; of
a second shell oscillatorily mounted within said
edges adapted to cooperate with such spaced
ñrst shell and having a longitudinal slot, the re
10 spective sides of such slot constituting cutting
cutting edges in said ñrst shell.
edges adapted to cooperate with suc-h cutting
6. In a device of the character described, the
combination of a casing formed with an open
edges in said first shell, and means resiliently
recess having opposed curved side walls; a shell
pressing the slotted portion of said second shell
formed of two approximately semi-cylindrical
against the portion of said iirst shell thus pro
portions seated in said recess, the outwardly fac 15 vided with cutting edges, said means comprising
ing, opposed edges of said portions constituting
an outwardly directed arcuate spring member on
cutting edges adapted to be brought in contact
said second shell adapted to bear against the ad
with the skin of a person to permit hair to enter
jacent inner surface of said iirst shell and said
member having endwise interlocking engagement
said shell; means in said casing adapted to ad
just the relative position of said shell-portions 20 with such surface.
`
whereby the distance between such edges may be
10. In a device of the character described, the
varied; and a second shell oscillatorily mounted
combination with a cylindrical shell having plural
within said ñrst shell and having a longitudinal
series of vlongitudinally spaced cutting edges
slot, the respective sides of such slot constituting
adapted to be brought in contact with the skin
cutting edges adapted to cooperate with such out 25 of a person to permit hair to enter said shell;
ting edges in said first shell.
of a second shell oscillatorily mounted within said
7. In a device of the character described, the
combination of a casing formed with an open
recess having opposed curved side walls; a shell
ñrst shell and having a longitudinal slot, the re
spective sides of such slot constituting cutting
edges adapted to cooperate with such cutting
formed of two approximately semi-cylindrical 30 edges in said ñrst shell, and means resiliently
pressing the slotted portion of said second shell
ing opposed edges of said portions constituting
against the portion of said iirst shell thus pro
cutting edges adapted to be brought in contact
vided vvith lcutting edges, said means compris
with the skin of a person to permit hair to enter
ing outwardly directed arcuate spring members
said shell; radial projections on said shell 35 on the respective ends of said second shell
portions at points removed from such edges; a
adapted to bear against the adjacent inner sur
portions seated in said recess, the outwardly fac
spring engaging _said projections `to draw the
same towards each other, whereby such edges are
face of said ñrst shell.
l1. In a device of the character described, the
separated; a wedge-member adjustably positioned
combination with a cylindrical shell having plural
between said projections, whereby said projec 40 series of longitudinally spaced cutting edges
tions and thus such edges may be moved in op
position to said spring; and a second shell oscil
latorily mounted within said iirst shell and having
a longitudinal slot, the respective sides of such
slot constituting cutting edges adapted to cooper
ate with such cutting edges in said first shell.
8. In a device of the character described, the
combination with a cylindrical shell having plural
series of longitudinally spaced cutting edges which
face each other and are adapted to be brought
in contact with the skin of a person to permit
hair to enter said shell; of a second shell oscil
latorily mounted within said iirst shell and having
a longitudinal slot, the respective sides of such
slot constituting uninterrupted cutting edges
adapted to cooperate with such spaced cutting
edges in said ñrst shell, and means resiliently
pressing the slotted portion of said second shell
adapted to be brought in contact with the skin
of a person to permit hair to enter said shell;
of a second shell oscillatorily mounted within
said ñrst shell and having a longitudinal slot,
the respective sides of such slot constituting cut
ting edges adapted to cooperate with such cutting
edges in said iirst shell, and means resiliently
pressing the slotted portion of said second shell
against the portion of said first shell thus pro
vided with cutting edges, said means comprising
outwardly directed arcuate spring members on
the respective ends of said second shell adapted
to bear against the adjacent inner surface of
said first shell and such surface having recesses
wherewith said members engage to lock said
shells against relative end-wise movement.
JOHN SONNE.
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