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Патент USA US2116280

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May 3, 1938.
WQ T. PARKIN
2,116,280
RAZOR
Filed June 1, 1935
11117/1111, l
-l-’atented May 3, 1938
2,116,280
UNITED STATES ‘PATENT ' OFFICE
3,116,380
Razon
n
-
_
Winn-«i rr., Parkin, Providence, n.. I., assignm- to
Theodore W. Foster à Bro.
R. I., a corporation of Maine
Co., Providence,
Application :une 1, más. serial No. 24.508
15Clalms.
This invention relates to improved safety
razors, particularly of the type employing recipro
eating blades, and to blades ‘to be employed in
such razors. In some respects the 'present inven
tion aifords an improvement upon they type of
Vrazor disclosed in United States Letters Patent
N0. 1,890,733 to‘JOhti L. King.
In accordance with the present invention, how
ever, an actuating roller, for example having a
cam groove, may be arranged directly to engage
lo" a portion or portions of a reciprocating blade so
that only one moving part is necessary to impart
a reciprocatory movement to the blade; thus slid
(ci. sus)
straight-line reciprocatory' path. Integral tabs
or ears may extend inwardly from the sides of the
rectangular opening in the blade to afford fol
lower elements which engage opposite sides of the
roller. Thus the roller may be provided with a
cam groove engaging ears on the blade at both
sides thereof, and balanced forces tending to re- Y
ciprocate the blade are imposed upon both sides
thereof. Furthermore, the blade may be of sym
metrical design so that either face thereof may
be disposed’uppermost in the razor.
A further advantageous Vfeature of the in
vention pertains to the v‘arrangement of the parts,
ing saddles, actuating plates, oscillating rods and ' and especially .the cam groove of the roller and
15 the like are avoided. This construction also per-‘
mits the provision of a blade with two cutting
edges with the driving roller symmetrically ar
ranged relative to the blade and these edges.
Furthermore, the actuating roller itself may be
the cooperating parts- of the blade so that the
latter may readily be located in operating posi- .
tion upon the support without necessity for care
- ful adjustment.
In the accompanying drawing:
i
i
disposed with its axis'of rotation in the region
of the plane of the blade, so that the exposed
portion of the roller does not protrude unduly
holder
Fig. 1ofisa arazor
central
embodying
vertical the
section
partsofofthe
this
blade
in
above the retainer or cap of the holder. Accord
of the handle, being >shown in‘ elevation;
ingiy, a holder may be provided which may have
'a compact, i'lat form comparable to that provided
by holders which are not supplied 'with recipro
cating blades.
`
’ .An important aspect of the invention involves
the form of the blade support which may be
made of a single piece of sheet metal to provide
an opening and recess to receive the lower part
of the actuating roller and to provide ears in
which the ends of the roller are journaled. The
support may, for example, have a rectangular .
vention, certain parts, including the upper part ,20
'
~
Fig. 2 is a central section on a plane at right
angles to that of Fig. 1:
'
‘
"
.
Fig. 3 is a plan view of the holder with the roller
removed, showing the retainer swung to its open
position;
Fig. 4 is a similar view, but showing the roller
and blade, and with a part of the retainer broken
away;
'
»
`
Fig. 5 is a plan view of a blade which» may be
employed in a 'razor of the present type;
l; and
opening is pressed downwardly to ‘afford two>
Fig. 3.
generally semi-«cylindrical "sleevg elements that
may enclose portions of the roller and _an in
In the accompanying drawing, which illustrates
the principles of the present invention, the handle
termediate cylindrical boss integral with these
elements to receive the handle. The boss. and
elements cooperate in providing a stiiï rein
of the razor is designated by numeral l. The
upper end of the handle ñts tightly within an in
connected to the handle despite the provision of
the opening to receive the roller. 'I'he retainer,
45 whichy may conveniently be of the swinging type,
may be arranged to provide an opening through
30
Fig. ¿6 is a section indicated by line 6-6 of Fig.
opening or recess with struck-up ears at its ends,
while the >metal at the intermediate part of the
, forcement for the portion of the support which is
5
l
j
‘
Fig. '1 is a section indicated by line ‘l--l of
.
tegral boss 2 of the blade support 3, which forms
a part of the blade holder. -'I’he support may
be provided with a plurality‘of elongate recesses
4 which separate its body portion from rail-like
guard portions 5. The support may also have aplurality of small protuberances l (Fig. 3) dis
which the upper surface of the roller is exposed -posed adjoining the openings 4 to engage the
forengagement with the flesh of the user of the lower surface 'of the blade and support the same.
razor.
y
The support 3 is provided with a central gen
50
A razor of this type may» employa blade of erally rectangular opening I0, the intermediate
simple form having a generally rectangular open
parts of the sides of which are bulged ,slightly to
ing therein, the sides of which may engage the conform to thecurvatureÄof boss 2. The metal
edges of the ears which support the actuating at the ends of the opening I0 is struck upwardly
roller, thus the blade is constrained to follow a >to afford small ears I5 which have openings in
55.
56
.
2
2,118,280
which the ends of an actuating roller I1 are jour
inales. 'rms roller 1s provided with roughened or
fluted end portions Il and an intermediate part
permits a blade support to be formed of a single.
into a substantially semi-cylindrical form to af
ford guard sleeve elements 2l (Figs. ’6 and '1)
and affording a reinforcement. for this portion
of the holder; furthermore, the ears which sup
which surround the adjoining parts of the roller
port the actuating roller and which afford guide
I1. 'I'he elements 20 are 'integral with the boss.
2 and in effect afford a recess beneath the central
means for the reciprocating blade may also be
piece of sheet metal not only to provide guard
rails and a boss portion to receive the end of the
handle, but also to provide the guard'sleeve ele
providing a cam groove Il. Below the inter
mediate part of the opening Il, and at each side ì ments 2li below the roller, these elements also '
of the boss 2, the metal of the support I is bent connecting the opposite sides of the opening Il
part of opening I0 in which the lower part of the
roller is received. Obviously the elements 2l and
the boss 2 cooperate in reinforcing the guard in
15 the region of the opening Il and afford a rigid
structure where the guard or support is connected
to the handle.
The holder may also include a retainer 2i which
is connected by a suitable hinge 2l to one end of
20 the support 3. The opposite end of the retainer
’ is provided with a resilient clip 22 which may
normally engage> the lower surface of the sup
porting plate adjoining a notch 23 in the end of
that plate. When the clip 22 is pressed upwardly
25 and outwardly, the retainer may be swung to the
open position shown in Fig. 3, thus exposing the
surface of the support so that a blade may be dis
posed therein. The retainer is also provided with
a central generally Irectangular opening 2l in
30 which the upper part of the roller I1 is received.
The ends of this opening are provided with
notches 28 in which the edges of the ears I! may
be received, the upper surfaces of the latter being
disposed substantially in the region of the upper
35 surface of the retainer, as shown in Fig. 1.
The blade 40 may be of generally rectangular
40
integral with the supporting blade. Due to the
arrangement of the axis of the roller in theregion
of the plane of the blade, an unusually compact
construction is provided so that the exposed por
tion ofthe roller does extend substantially above 15
the retaining plate. Thus neatness of appear
ance is afforded and convenience in shaving is
facilitated.
It should be understood that the present dis
closure is for the purpose of illustration only and 20
that this invention includes all modifications and
equivalents which fall within the scope of the
appended claims.
I claim:
1. A razor of the class described comprising a
blade support, a blade, a retainer normally co
operating with the support in holding the blade
in place, an actuating roller rotatably mounted on
the support and having its axis of rotation near
the plane of the blade, the retainer having an 30
opening through which the upper portion of the
roller is 'exposed for engagement with the flesh
of the user of the razor, said roller having a cam
portion, said blade having an integral part en
Seeing said cam portion and functioning as a
follower so- that the blade is reciprocated as the
form, as shown in Fig. I5, having parallel cutting
roller is rotated.
edges 4I and a central opening l2. This open
2. A razor of the class described comprising a
blade support, a blade, a retainer cooperating with
ing may be o_f generally rectangular form. having
straight parallel sides ß to slide in juxtaposition
to the edges of the ears I5 (Figs. 4 and 6). The
intermediate portions of the sides 43 of the open
ing are, however, provided with inwardly extend
ing follower tabs or lugs ß which are received in
These ears may have straight
edges to engage the sides of the groove and curved
45 the cam groove I9.
ends to facilitate their initial engagement with
the groove.
I
When a blade of this type is to be disposed in
60 the razor, the retainer 2l is swung to its open
the support in holding the blade in place, said
support having upstanding elements extending
into an opening in the blade and affording guide
means therefor to restrain the blade to follow
a straight-line path, an actuating roller rotatably
mounted on said elements and providing a cam 45
portion, a part of the blade engaging said cam
portion and functioning as a follower therefor so
that the blade is reciprocated in response to rota
tion of the roller.
_
3. A razor of the class described comprising a
position illustrated- in Fig. 3, and the blade is
moved downwardly so that the tabs ß engage the
cam groove I9, the curved ends of these ears
blade support, a blade, a retainer cooperating
with the support in holding the blade in place,
said support having a central opening and up
readily moving into initial engagement with the
standing integral ears at the ends of the open
55 -cam groove.
The »blade is then moved down
ing, the blade having an opening with its sides 55
wardly so that the ends of opening 42 fit about slidably engaging .the edges of said ears so that
‘the ears I5 and-the sides 4I >of the opening are the blade is constrained to follow a' straight-line
y in sliding engagement with the edges of the ears.. path, an actuating roller journaled in openings
The retainer 25 may then be swung to its normal in said ears and having a cam portion, portionsy
of the blade extending inwardly from the oppo 60
00 position so that the upper part of the roller ex
tends through the opening 2l in the retainer. site sides of its opening and engaging said cam
“When the razor is used, the roughened portions portion to function as followers therefor so that
I8 of theroller I1 engage the flesh of the user, the blade is-recipi‘ocated in response to rotation
reciprocating the blade and acting through the of the roller.
65 cam groove I9 and follower lugs 4l in imparting
4. A razor of the class described comprising a
a reciprocating movement to the blade, which is lblaide support, a blade, a retainer cooperating
restrained to follow a straight-line path by the with the support in holding the blade in place,ears I5.
said support having a central opening and up
It is evident that this invention affords a very
standing integral ears at the ends of the opening,
simple
arrangement
wherein
_a
driving
roller
is
70
the blade having an opening with parallel sides
the only moving part necessary to impart move
ment to a reciprocating -blade. the ears which slidably engaging theedges of said ears so that
support the roller forming guide means to restrain ' the blade is constrained to follow a straight-line
the blade so that it follows a straight-line path. path, an actuating roller journaled in openings
ent illustrated herein in said ears and having a cam portion, portions
75 The structural
'
-
3 ,
2,116,280
of the blade extending inwardly from the sides
on said ears and providing avcam portion, a pro- ‘
of its opening and engaging said cam portion to
jection extending inwardly from the side of the
function as followers therefor, integral portionsv
opening in the blade and engaging said cam por
of said support being of substantially,semi-cylin- ‘ tion to function as a follower therefor, said sup- l
drical form and being disposed adjoining the cen
port having a generally semi-cylindrical part dis,
tral part of the opening in the support to afford ‘ posed below the roller and affording a recess in
shields for the lower part of the roller while con-l
which the lower part of the roller is received, said
necting the portions of the support at opposite
semi-cylindrical part connecting portions of the
sides of the opening therein.
support at opposite sides of the roller. _
9. lIn a razor lof the class described, a blade 10
‘
5. A razor of the class described comprising a
10
blade support, a blade, `a retainer cooperating
with the support in holding the blade in place,
said support having af central opening and up
standing integral ears at the ends of the opening,
15 the blade having an opening with parallel sides
slidably engaging the edges of said ears so that
the blade is constrained to follow a straight-line
path, an actuating roller journaled in openings
in said ears and having a cam portion, portions
of the bladeextending inwardly from the sides
20
support comprising a plate-like body portion hav
ing a central opening therein, opposite sides of
said opening being connected by a generally
curved shield portion, upstanding ears disposed
at the ends of the opening, and a roller journaled
on the ears and having its lower part received in
said shield portion.
'
-
.
>
10. In a razor» of the class described, a support
comprising a plate-like body portion having a
central opening therein, integral upstanding ears
of its opening and engaging said cam portion to at the ends of the opening, a ‘roller journaled on
function as followers» therefor, integral portions the ears, integral parts of said body portion being
of said support being of substantially semi-cylin
shaped to curve downwardly below the roller to
drical form and disposed adjoining the central t afford a recess below the opening in which a part
25 part of the opening in the support while connect
of the roller is received, and an integral boss for 25
ing the portions of the support at opposite sides connection to a handle, said boss and said inte
of the opening therein, a portion of said support gral parts being Aintegrally connected to eachproviding a central boss for connection to a han
dle, said integral portions being integrally con
30 nected to said boss.
'
6. A razor of the class described comprising a
-blade support, a blade having an opening with
parallel sides, a retainer cooperating with the`
support in holding the blade in place, said sup
35 port having upstanding ears extending through
the opening in the blade, the parallel sides of lsaid
opening slidably engaging the edges of said ears
so that the latter afford guide means to constrain
the blade to follow a straight-line path, an actu
40 ating roller having its ends journaled on said ears>
and providing a ycam portion, the roller having its
axis of> rotation disposed adjoining the plane of
the blade, the retainer having an opening through
which the upper part of said roller is exposed, a 45 part of the blade engaging said cam portion and
,
,
l1. A razor of the class described comprising a
blade holder, a blade having opposite parallel 'cut 80
ting edges and an actuating roller rotatably
mounted on the holder and having a cam groove,
said blade having a central opening in which a
part of the roller is disposed and having similar
projections extending into engagement with the 35
cam groove on opposite> sides of the axis of rota
tion of the roller whereby the blade may be recip- '
rocated in a path parallel to its cutting edges in
response to rotation of the, roller.
'
12. A razor of the class described comprising a 40
handle, a blade holder connected to the handle
and symmetrically arranged in relation thereto, a
cam roller symmetrically supported by the holder,
a double-edged blade mounted-on the holder and
having a central opening with portions engaging 45
functioning as a follower therefor so that the
the roller to function as ‘followers so that the
blade is reciprocated in response to rotation of
blade may be reciprocated in response to rotation
the roller.
of the roller.
13. A razor of the class described comprising a
handle, a support‘connected to the handle and 50
symmetrically arranged in relation thereto, a cam
roller symmetrically supported by the support, a '
double-edged blade mounted on the support and
having a central opening with portions engaging
Y
7. A razor of the class described comprising a
50 4blade support, a blade having an opening with
parallel sides, a retainer cooperating with the
Y support in holding the blade in place, said sup
port having upstanding ears extending through
the opening in the blade, the parallel sides of said
55
other.
opening slidably engaging the edges of said ears
so that the latter aiford guide means to constrain
the blade to follow a straight-line path, an actu
ating roller having its ends journaled on said
ears and providing a cam portion, the roller hav
the roller to function as followers so that the 55
blade may be reciprocatedl in response to rotation
of the roller, and a swinging retainer normally
positioned to hold the blade on the support, saidv
retainer having a central opening through which
the roller is exposed for engagement .with the
ing its axis of rotation disposed adjoining the
plane of the blade, the retainer having an opening flesh of theuser of the razor.
'
through which the upper part of said roller is ex
14. A razor of, the class described comprising a
posed, integral projections of the blade extending blade holder providing upstanding ears, a cam
inwardly from the parallel sides of its opening ' roller rotatably mounted on said ears, a blade
65 and engaging said cam portion, said projections having a central opening in which the roller and 65
functioning as followers so that the blade is recip
ears are disposed, said opening being shaped to
60
rocated in response to rotation of the roller.
8. A razor ofthe class described comprising a
blade support, a blade having an opening with
provide a follower portion engaging the roller so
that the blade is reciprocated when the `roller is
parallel sides, a retainer cooperating with the
support and holding the blade in place, said sup
the ears so that the latter guide the blade in a 70
rotated, said -opening providing edges engaging
rectilinear path as it is being reciprocated.
’ port> having upstanding ears extending through
15. A thi-n razor blade of the class` described
the opening in the blade and affording guide
having opposite parallel straight cutting edges
means to constrain the blade to follow a straight
and having a central opening, the opening being
of rectangular form with opposite sides parallel to 75
75 line path, an actuating roller rotatably mounted
4
2,110,280
the respective cutting edges, said opening extend
ing the major portion of the length of the blade,
the intermediate parts of said opposite sideseach
being interrupted by a single relatively small in
wardiy extending lug, the lugs being similar and
directly opposite each other, the sides being
straight between the lugs and the ends- of thev
opening to engage parts oi' a blade holden so that
the blade may be guided in a straight line recip
rocating path, said blade being symmetrical rela
tive to both its longitudinal and transverse cen
tral axes.
,
'
y
WINFRED T. PARKIN.
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