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Патент USA US2126728

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Aug. 16, 1938.
L
.
h. L. BUELL ‘ '
‘2,126,723
AUTOMATICALLY ADJUSTING. RAZOR
J
Filed March 15, 1933
'
IliMW-QW'M
V
2,126,728
, Patented Aug. 16.1938
UNITED STATES
PATENT OFFICE
2,128,728
AUTOMATICALLY ADJUSTING RAZOR '
Charles L. Buell, Xenia, Ohio,’ assignor to John
'
W. Anderson, Gary, Ind.
Application March 15, 1933, Serial No. 660,883
15 Claims. (CI. 30-87)
This invention relates to razors of the “safety” cutting position, have but few parts, and unlikely
type. and more particularly to a construction to get out of repair.
whereby the head of the razor is enabled to auto
A further object of the invention is to provide
matically adjust itself to the most advantageous a safety razor, the head of which is revolubly
cutting position inclined to the line of draft.
connected to the handle for free rotation relative
For the purpose of illustration, but without thereto and yieldingly responsive to variations of
desire to unduly limit the application or scope resistance and pressure.
of the invention, it has been illustrated applied
A further object of the invention is to provide
to a-well known form of razor wherein a thin means for automatically inducing a partial rota
10 ?exible wafer style blade is clamped under ?ex
tive movement of the head about the handle 10
ing tension between cap and guard members by under in?uence of the draft movement of the
adjustment of the razor handle which is screw
threaded upon a stud “projecting from the cap or
razor over the operator's face.
clamp plate.
an automatically adjustable razor head which
will automatically reverse its position when oper 15
It will be understood, however,
'15 that the invention is not limited to this speci?c
type of construction, but may be applied to vari
ating upon opposite sides of the operator's face.
ous other forms of “safety" razors of which there
In the embodiment of the invention, as here
A further object of the invention is to provide
means for varying the draft resistance to the
movement of the razor head throughout the
handle, in which adjusting movement it may be
controlled by contact of the operator’s ?nger tip
a differential adjustment of the opposite ends of
the cutting blade.
A further, and none the less important object
are numerous styles now available.
20 illustrated, the head of the razor is revolubly
mounted for free rotation about the axis of the
with a knob or terminal extension at the end of
25 the handle connected to and rotating with the
revoluble head. The cap or clamp plate of the
head is corrugated at an angle to the cutting edge
of the blade whereby the frictional resistance in
drawing the razor over the face will tend to align
30 such corrugations with the line of draft and so
length thereof, thereby automatically effecting
of the invention, is to provide ?nger tip control
justment by ?nger e?ort.
A further object of the invention is to provide
reverse control means for the razor head when
operating upon opposite sides of one’s face, 30
whereby the razor will be equally as effective upon
to effect a draw out or searing action. Inasmuch
one side as upon the other.
as the cutting angle most desirable while shaving
one side of one’s face is quite contrary to the
angle most effective when shaving the opposite
side, the directional corrugations are arranged
in two reversely disposed series adjacent the op
A further object of the invention is to provide
a reversely corrugated clamp plate or head.
A further object is to provide an improved form
of guard plate having inclined marginal teeth or
projections, the teeth or projections of opposite
edges of which are inclined in reverse directions.
With the above primary and other incidental
objects in view, as will more fully appear in the
and the customary marginal teeth of the guard
till. plate are extended in like directions.
The automatic adjustment of the razor head to
proper inclined relation to the line of draft may
be effected not alone by the “tracking” effect of
the inclined corrugations, but may be otherwise
achieved by varying the frictional resistance
throughout the length of the head of the instru
ment whereby one extremity of the blade will be
retarded to greater extent than the other thereby
50 causing it to assume the desired angular relation.
The object of the invention is to simplify the
construction as well as the means and mode of
operation of safety razors, whereby they will not
only be cheap in construction, but will be auto
matically adjustable to the most advantageous
20
means for regulating the automatic adjustment 25
of the blade and if desired, augmenting such ad
present the cutting edge at such angle thereto as
‘ posite margins of the convex cap or clamp plate,
55
A further object of the invention is to provide
speci?cation, the invention consists of the fea
tures of construction, the parts and combinations
thereof, and the mode of operation, or their
equivalents, as hereinafter described and set forth
45
in the claims.
In the accompanying drawing, wherein is
showed the preferred but obviously not necessarily
the only embodiment of the invention, Fig. l is
a perspective view of a safety razor, embodying
the present invention and illustrating the man
ner of grasping the razor to control the adjust
ment of the freely rotatable head by contact of
the operator's ?nger upon the terminal knob or
extension on the handle. Fig. 2 is a longitudinal
sectional view of the assembled razor. Fig. 3
2
2,196,738
is a perspective disassembled view of the several
parts. Fig. 4 is a plan view of the cap or clamp
plate. Fig. 5 is a similar view of a modified
form of the corrugated cap or clamp plate. Fig.
8 is a detail view of the guard plate. Fig. '7 is a
detail disassembled view of .the handle. Fig. 8
is a disassembled side view of the cap and guard
plate illustrating the preferred blade locating
means. Fig. 9 is a plan view of the guard plate
10
embodying the preferred locating studs.
Like parts are indicated by similar characters
of reference throughout the several views.
Referring to the drawing, wherein for illus
trative purposes there has been shown a Gillette
15 type razor, although the present invention is not
limited to such specific construction, I is the usual
cap or clamp plate of slightly convex form, hav
ing projecting from its under side a centrally dis
posed screw threaded stud 2, and, in the usual
20 construction, a longitudinally disposed medial
rib I, for locating the cutting blade relative
thereto. However, in lieu of the customary rib
on the cap I, there is preferably employed the
construction shown in detail in Figs. 8 and 9
25 and hereafter described. The wafer type cut
ting blade 4 is interposed between the cap or
clamp plate I and a guard plate I, also of convex
form. The guard plate 5 and interposed cutting
blade I are slotted or otherwise apertured to agree
30 with the locating means whether it be the rib 3
or other suitable projections. The screw threaded
- stud 2, extending through the interposed cutting
blade 4 and the guard plate 5 is engaged within
the screw threaded extremity 6 of the handle
35 shaft. As thus far described, the device com~
prises a typical form of safety razor which broadly
forms no part of the present invention.
In order that the head of the razor may be free
to rotate about the axis of the handle, the handle
40 includes a relatively rotatable sleeve ‘I, journaled
at one end upon a shoulder or annular rabbet 8
upon the terminal portion 6 of the handle, and
likewise journaled at its opposite end upon a
corresponding shoulder or annular rabbet 9 upon
45 a terminal knob II. A shaft or stem II, ?xedly
secured to the terminal 8 of the handle shaft,
extends axially through the revoluble sleeve 1
and is screw threaded at its extremity for en
gagement of the terminal knob III. The ter
minal knob I I, when tightly screwed upon the
stem II, becomes in effect a unitary part of the
stem II and the terminal 8 which has screw
threaded connection with the stem 2 of the cap
or clamp plate I. The grip portion ‘I of the han
55 dle is, however, loose upon the remaining portions
which may freely rotate therein in unison with
'50
rotary adjustment of the head while the grip
portion ‘I is grasped in the operator's hand.
It will be understood that when assembled for
use, the terminal portion 6 of the handle, the
shaft II', and the knob III, are fixedly secured
to the head of the razor by the screw threaded
engagement of the portion 8 with the stem 2
which serves to clamp the blade I under tension
65 between the cap I and guard plate I.
In order to afford resistance to movement of
the razor head over the face with the cutting
blade at right angles to the line of draft and to
cause the head to automatically rotate within
the grasped grip portion ‘I until the blade as
sumes a line of least resistance, the outer face
of the cap I is corrugated. The corrugations I2,
of the cap I, are arranged in two series contigu
ous to the opposite edges of the cap or clamp
75 plate I and disposed in reversed angular relation.
The corrugated areas may be of equal width, as
illustrated in Fig. 5, or such series of corrugations
may be of tapering contour, the corrugated areas
being wider at one end than at the other, as is
illustrated in Fig. 4. By the latter means the
frictional resistance to movement of the cap or
head I over the face varies at different points
throughout the length of the head I, and due to
such variation of resistance the head is turned _
to an inclined position relative to the line of 10
draft.
The same result is achieved in the con
struction illustrated in‘ Fig. 5 wherein the re
sistance to the movement of the cap or head in a
direction coincident with the inclination of the
corrugations or ribs II will be less than in a
direction transverse to such ribs and hence the
tendency will exist for the head to automatically
adjust itself about the axis of the handle to pre
sent the ribs I2 in parallel relation with the line
of draft and hence in the line of least resistance. 20
The corrugations I2 are preferably, though
not necessarily, rounded at their bottoms and
also at their tops although other forms are effec
tive for the purpose.
The guard plate 5, in the present instance. is 25
also modified to agree with the directional corru
gations of the cap or clamp plate I. It is custom
ary to provide marginal spaced teeth or projec
tions I3 upon the guard plate 5. In the pres
ent instance, these spaced projections or teeth 30
II are inclined in reverse directions at the oppo
site edges of the guard plate with their degree
of inclination substantially equal to that of the
corrugations I2. These inclined teeth or pro
jections are therefore aligned with the direction 35
of draft movement of the head.
When in use, with the operator grasping the
revoluble grip portion ‘I and the head and stem
free to rotate relative thereto, the head will auto
matically change its inclination to agree with 40
the varying contour of the operator’s face, over
which it is drawn, always assuming, however, an
inclined relation to the line of draft so that it
affords a draw out or shearing action. However,
to control and retard this action, and, if desired, 45
to hold the head in its adjusted position after it
has automatically assumed proper inclined rela
tion, the operator may lightly rest his ?nger upon
the knob I0, and by slight pressure can yield
ingly resist the automatic adjustment of the head, 50
and if necessary or desirable, by slight pressure
thereon, can effect an oscillatory or rotary ad
justment independently of the influence of the
corrugations I2. It has been found that the
freedom of movement of the revoluble head of 55
the razor not only facilitates the shaving opera
tion and enables it to be accomplished com
fortably and efficiently, but it also obviates tend
ency to cut oneself, which is usually the result
of drawing the razor in a direction in which it 60
should not be drawn or by engaging the face with
the corner of the cutting blade which is auto
matically avoided in the present instance by the
rotation of the head and cannot be effected ex
cept for forcing the razor contrary to its normal 65
tendency.
In lieu of the customary rib extending longi
tudinally of the cap or clamp plate, the preferred
locating means comprises two relatively spaced
studs I4 projecting from the top of .the guard 70
plate 5. These studs are located coincident with
the ends of the medial slot in the cutting blade 4
and project into correspondingly spaced holes IS
in the under side of the cap or clamp plate I.
One of the studs I4 is preferably undercut or 75
2,12%728
notched at its outer side as at it, thus forming a
hook upon which the blade is retained while the
opposite end is being positioned upon the second
6. In a safety razor, a blade carrying head, a
handle therefor including a relatively revoluble
grip portion and a stationary terminal portion
?xedly connected with the head portion, said ter
minal portion being arranged for a little ?nger
tip control.
'7. In a safety, razor, a rotary blade carrying
head portion, and a handle therefor including a
' stud.
From the above description it will be apparent
that there is thus provided a device of the char
acter described possessing the particular features
of advantage before enumeratedsas desirable, but
which obviously ‘is susceptible ‘ of modi?cation
freely revoluble grip portion and stationary
10 in its form, proportions, detail construction and
,mounting portions for the grip.
arrangement of parts without departing from
the principle involved or sacri?cing any of its
advantages.
’
8. ‘A handle for a safety rabor including a shaft,
a‘screw threaded socket at one end of the shaft,
a knob secured to the opposite end of the shaft
and a revoluble sleeve forming a grip portion
‘
While in order to comply with the statute, the
15. invention has been described in language more
or less’speci?c as to structural features, it‘ is to be
understood that the invention is not limited to
the speci?c features shown, but that the means
10
vfreely‘rotatable about the shaft intermediate the
socket and knob.
-
9. A handle for a safety razor, including a shaft,
a coupling member secured at one end of the shaft
for engagement with a blade carrying head, a
knob carried at the opposite end of the shaft, an 20
nular bearing rabbets on the adjacent sides of
and construction herein disclosed comprise the
20 preferred form of several modes of putting the
invention into effect, and the invention is there»
fore claimed in any of its forms or modi?cations said coupling member and knob. and a ‘tubular .
within the legitimate and valid scope of the an
grip member revolubly engaging said heating
pended claims.
rabbets.
_
.
25
Having thus described my invention, I claim:
10. A safety‘ razor including a corrugated cap 25.
1. A safety razor including a blade carrying portion having diagonal corrugations of progres— '1
head and a handle therefor, upon which the head
is pivotally mounted for free rotary motion sub
30
sively varying length disposed in reversely inclined
series adjacent to opposite margins of the cap.
11. A safety, razor including a corrugated cap
stantially in the plane of the head and about the ,
axis of the'handle.
‘ 2. A safety razor including a blade carrying
head, a shaft, a coupling member secured at one
end of the shaft for engagement with the blade
, portion having two converging, series of corruga
.
30
tions.
‘ 12. A handle for a safety .lrazor including a shaft
carrying head, a knob carried by the opposite end and ‘coupling member secured at one end of the
35 of the shaft, a tubular grip member rotatably _ shaft for engagement with a blade carrying head,
a knob carried at the opposite end of the shaft 35
mounted upon said shaft intermediate said
- coupling unit and said knob, and means affording
variation of frictional resistance throughout the
40
length of "the head to movement over the face of
the operator wherebyone end of the head ‘will be
retarded in its movement relative to the opposite
end thereby causing the head and coupling unit
to have a relative movement with respect to said
tubular grip member.
3. A safety razor including a blade carrying’
45
head having recesses formed therein and inclined
to the longitudinal center line thereof, a handle .
. portion therefor upon which the head is mounted
for relative rotary motion about the axis of the
50 handle, ‘and . a plurality of de?ecting portions
formed on said head intermediate said recesses
for effecting automatic rotary adjustment of said
head with respect to said handle, in response to
frictional variations throughout the length of the
head to movement over the face of the operator.
4. A safety razor including a blade carrying
head, a handle portion therefor upon which the
head is mounted for relative rotary motion, andv
inclined corrugations upon ‘the head'tending to
60 align themselves with the direction ‘of movement
over the face of the operator and thereby auto
matically rotate the head about the axis of the
handle to an inclined position relative to such
direction of movement.
5. A safety razor including a‘ blade carrying
head, a handle portion therefor upon which the
head is revolubly mounted for free rotary motion
about the axis'of said handle, and means upon the
handle for controlling the independent rotary
70 motion of the head, said means being arranged
for a little ?nger tip control.
and a tubular member rotatably mountedupon
said shaft intermediate said coupling‘member and
said
knob. '
'
~
‘
.
,
13.‘ In a safety razor, a handle, a blade~carry
ing holder carried by and readily, movable with 40
respect to said handle about a pivot extending
transversely to the longitudinalicenter line of the
holder, said holder being freely movable to readily
align itself longitudinally with the body of a user
when brought intocontact therewith to provide
a uniform’ distribution of pressure throughout
45
the entire cutting edge of the‘blade upon said
body;
'
, 14. A safety-razor including a blade-carrying
head, a handle portion therefor upon which the 50
head is mountedfor relative rotary motion about
an axis extending transversely to thelongitudinal
center line of said head, and inclined corruga
tions upon the head tending to (align themselves
with the direction of movement of the razor over 55
the face of the operator and thereby automati
cally rotate the head about said axis to an in
clined position relative to such direction of move
ment.
‘
,
'
15. In a safety-razor, a handle, a blade-carry
ing head carried by said handle on a pivot having
an axis extending transversely to the longitudinal
center line of the head, said head being movable
about the axis of said pivot for aligning the head
and blade carried thereby longitudinally with re 65
spect to the body of the user when brought into
contact therewith and to provide. a substantially
uniform distribution of pressure throughout the
entire cutting edgeof the blade upon said body.
70
CHARLES L. BUELL.
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