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Патент USA US2117136

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May 10, 1938.
2,117,136
w. H. BLACK
SAFETY RAZOR
Filed Oct. 26, 1937
INVENTOR
76
wíllíaágff Har-mm2 Blc‘xck
ATTORNEYS
Plasma May 1o, 193s
l
2,117,136
UNITED sTATEs PATENT oFFlcE
2,111,136
SAFETY aszon.
.
wuum ns1-msn nach. New York, N. 1r.
Application october es, 1m, serai No. mp1s
1: claim». (ci. sc-eoi
This invention relates to safety razors, and
more particularly to that type of safety razor in
The guard A Als iixedly secured to a tubular
handle D, said handle projecting downwardly
which a blade is clamped and ilxed between a
trom the center of the base of the channel
gu'ard and cap.
shaped guard A.
5
The primary object of the invention is to provide this type of razor which can be manually
operated so as to turn the razor blade over. that
is to say. give a rotary or turning movement of
approximately 180 degrees to the blade so that it
l0 is reversed in the razor without removing the
blade from the razor.
I have discovered that a blade rests if its position is changed from side to side every time
after a shave, and the razor of this particular
15 application accomplishes this movement by mechanical means which permits the operation
without the necessity of touching the blade or its
cap with the fingers of the hand.
The invention embodies -many novel features
2o of construction and combinations and arrangements 0f Perils. ell 0f which Will be mere fully
hereinafter described and pointed out in the
claims.
In the ßeeempenying drewing-
’I‘he reference character E is employed to indicate generally an elevator which is in the form
'of a frame having a base member Il with up
wardly projecting arms ß at its ends, and this
base member I l and arms I5 fit neatly within
the guard A and are movable vertically therein.
The elevator E is provided with a downwardly
projecting screw-threaded rod I6 iixedly secured
to the center of the base i4 and projecting into
the tubular handle D where it meshes with in
temal screw threads I1 in a sleeve il which has
rotary mounting in the handle. This sleeve is
manually turned preferably by means oi a milled
head I! on the lower end of the same and which
is located outside of the handle D. and a screw
or other form of pin 20 is projected through the
milled head I9 into an annular groove 2l in the
handle D so as to prevent longitudinal move
ment of the sleeve but permit free rotary move
ment thereof.
5
10
l5
20
i
~_»,-,
F18- 1 1S a tOD plan View 0f the razor with its
Darts in eleeed position:
Fig. 2 is a view in longitudinal section on the
line 2--2 0f F18. 1;
Fig. 3 is a view in transverse section on the
30 line 3--3 01.' F18. 2;
To limit the upward movement of the screw 25
threaded rod i8 in the sleeve I8 a headed screw
22 may b_e capped into the lower end of the rod
Il and engage the threaded portion Il ot the
sleeve lg when the elevator E reaches the ex..
treme of its upward movement.
'3"
Fig. 4 is an end view looking at the right-hand
end 0f Figi 1 and 2i
F18» 5 is a View Similar to Fig» 3 but Showing
the razor in Open position?
35
Fig» 6 1S a fragmentary Sectional dem“ View
0n the une ‘_5 0f F19 2' but Showing the P0'
sition of the parts when the razor is open, that
‘ë to say' as Shown in Fig' 5 0f the drawing;
Fig. 'I is a view in elevation looking at the side
40 of the razor with the latter in closed position;
F1@ 8 is a' top plan View 0f the razor with
the same in open position;
The cap B et lts ends ls provided with down
wardly projecting arms 23 which at their lower
portions are pivotally connected to the arms I5
of elevator È by means of pivot pins 2l, and it
wm be noted that these pivot pins 24 are at one 3"
side of the longitudinal centers oi the arms 23.
one arm n et its lower extremity adjacent the
pivot 24 is provided with a laterally projecting
unger- 25 which, when the elevator moves up
werd to. the desired elevation. engages a am 40
lug 26 on the end of the guard A so that a con
tinued upward movement of the elevator will
45
pa
19nsec
is atldetai;
Vieîmmamlïihî
eletvation but'
on, o my
prove e eva or.
My improved razor includes a guard indicated
generally by the reference character A with
:121g: Ca cap B cot-‘pentes to clamp and -ñex a
The
ard A constitutes an inverted ohanne1_
cause the cap E to swing
laterally from the po
r
'
sinon sh°wn in Figs' 3 and 4 to the position 4»
shown
in Fig’ 5'
The upwardly projecting arms Il of the ele
vator E are provided adjacent their upper ends
with slots 21 which receive trunnions 28 on the
50 shepedgälember with pel-elle] upwardly project..
ends of my improved blade holder 29. This blade 50
lng webs l0 el; its Side edges which have outwardly dared flanges Ii at their upper extremities and toothed extensions I2 on the flanges, all
of which constitute a guard against which the
55 blade C is clamped by the cap B.
holder is in the form of a bar having longitudinal
ribs 3| thereon t0 enter Slots 01’ Openings 3| in
the blade C. and between these ribs 3|. I Pri-Wide
a tum-button 32 which may be located in aline
ment with the ribsA to receive the blade thereon 55
9,117,186
and then turn at right angles so as to clamp the
blade on the blade holder.
permitted a certain amount of upward movement
in the elevator'. Thus the ratchet rack can move
in one direction. which is the movement last de
g
Of course the invention is not limited to any
specific means for clamping the «blade on the scribed. without imparting any turning move
blade‘holder. and I have illustrated in Fig. 9 of ' _ment to the blade holder and thus reset itself for
the drawing a modii'ied form which dispenses another operation.
with the turnbutton 32 and provides a slotted or
While I have illustrated and described what
notched tongue 33 at _one end of the blade holder I believe to be a preferred embodiment of my in
under which the blade is podtioned and then
vention, it is obvious that various changes might
snapped or sprung into position „over the ribs 30.
be made in the general form and arrangement of
blade holder at one end thereof and is engaged
by a ratchet rack 2|. This ratchet rack 35 is in
hence I do not limit myself to the speciilc details
set forth but consider myself at liberty to make
such changes and alterations as fairly fall within
Aratchetpinionllisiixedlysecuredtothe parts without departing from the invention,
` the form of a lever pivotally mounted near its
15 lower end on a pin 24' connectedtô an elevator - the spirit and scope of the appended claims. ’
arm ii. This ratchet rack at its lower end below _ '
Iclaim:
its pivot is formed with an outwardly projecting v_
1. A safety razor including a guard, a blade ~
preferably curved linger 3l which rides in a slot holder and a cap adapted to clamp the blade in
31 in one- of the side webs ll of the guard A, the holder between _the cap and the guard, means
which causes the ratchet rack 35 to pivot in both for elevating the blade holder and cap, means'for
directions by reason of its contact with the ends moving the cap from its position above the blade 20
of the slot 8l.
_ ~
holder, and means for turning the blade holder
The operation of the razor isv as follows: The when the latter is in an elevated position above
razor is held in a vertical position with the fingers andparallel with the guard.
23 of one hand grasping the' handle B. and- the J" 2. A safety razor including a-guard, a blade
thumb and finger of the other hand grasping the holder and'a cap adapted to clamp the blade in
h_ead Iltoturnthesame. Assumingtheraror the holder between the cap and the guard, means
to be in closed position, as indicated in Figs. 1, 2, for elevating the blade holder and cap. means for
3. 4. and 'I of the drawing. the operator turns the moving the cap from its position above the blade
30 head l. in a direction to cause the elevator E to holder, and «means for vturning the blade holder
so
move upward by reason ofthe screw-threaded when the latter is in an elevated position above
engagement between the rod IC and the sleeve Il. and parallel with the guard, said last mentioned
When the elevator moves upward a necessary means comprising an elevator' to which the cap
distance, the linger 2t of thearm 23 of cap B and the blade holder are connected, and inter
willensa'acthclugß ontheguardmandasthe engaging means between the cap. blade holder, 35.
'
upward movement of the elevator _continues this and guard.
---=11entoftheñngerwiththelugwillcause
3. A safety razor including a guard, a-blade
the cap to swing on the pivot 24 from its closed holder and a cap adapted to clamp the blade in
position to its open ‘position as indicated by Fig. 5 -the holder between the cap and the guard. means
40 of the drawing. A portion of this movement of for elevating the blade holder and cap, means for
the cap, that is. the extreme of this opening moving the cap from its position above the blade
movement, is due to gravity.
_
, '
holder, and means for turning the blade holder
When the cap is moved to its open position and when the latter is in an elevated position above
the upward movement of _the elevator is contin
and parallel with the guard, said last mentioned
ued, the linger Si on the ratchet rack 35 will en
means comprising an elevator to which the cap
gage the upper end of the slot Il and cause the and the blade holder are connected, and inter
ratchet rack to pivot in a direction to turn the engaging means between the cap, blade holder,
ratchet pinion 88 and the blade holder 29 a dis
and guard, a threaded rod afilxed to the elevator
tance of 180 degrees, thus turning the blade hold
and movable lin the handle, and a sleeve mounted
er with the blade therein and reversing the posi
to turn in the handle and having threaded en
tion of the blade in the razor. As this operation
gagement with the rod.
is completed the upward movement of the ele
vator is stopped or tenninated as, for example,
by means of the screw.22 in the end of the rod
It.
4. A safety razor including a guard, a handle
secured to the guard, an elevator movable in the
When this operation of opening the razor is
completed, the operator turns the head I9 and
sleeve I l in a direction opposite to that which he
has just previously turned the same to open the
razor which causes the rod It and the elevator
E to move downwardly in the guard A. As the
elevator moves downwardly.' the edge of the arm
23 of cap B is engaged by the lug 2B which exerts
a. cam action on the arm 23 which.causes the
cap to swing from its open to its closed position
and securely clamp the blade C between the cap
and the guard.
~
'
guard, a cap pivotally connected to the elevator,
a blade holder having rotary mounting in the ele 55
vator, cooperating means between the guard and
cap causing the cap to swing from closed to open
position when the elevator is moved in one direc
tion and from open to closed position when the
elevator is moved in the opposite direction, and 60
means for turning the blade holder and blade
therein through an arc of approximately 180 de
grecs as the elevator reaches the extreme of its
movement in a direction to open the razor.
5. A safety razor including a guard. a handle
secured to the guard, an elevator movable in the
70 ß will engage the lower end of the slot 31 in the
guard, a cap pivotally connected to the elevator,
a. blade holder having rotary mounting in the
elevator, cooperating means between the guard
and cap causing the cap to swing from closed to-
in a direction opposite to that formerly described,
open position when the elevator is moved in one
direction and from open to closed position when
` As the elevator nears the extremity of its down
ward movement the finger 36 of the ratchet rack
guardAandwillcausesaidratchet racktoswing
` and it`wilibenoted thatbyreason of the fact
that the trunnions 2l of the blade holder 2l are
in ‘slots $1 of the elevator. the blade holder is
the elevator is moved in the opposite direction.
and means for turning the blade holder and blade
therein through an arc of 'approximately 180
'9,117,1ac
degrees as the elevator reaches the extreme of
its movement in a direction to open the razor, said
last mentioned means including a ratchet pinion
on the blade holder, a pivoted ratchet rack on the
elevator engaging the pinion, and means opera
tively connecting the rack and the guard.
6. A safety razor including a guard, a lhandle
secured to the guard. an elevator movable in the
guard, a cap pivotally connected to the elevator:
a blade holder having rotary mounting in the ele
vator, cooperating means between the guard and
cap causing the cap to swing from closed to open
position when the elevator is moved in one direc~
tion and from open to -closed position when the
elevator is moved in the opposite direction, and
means for turning the blade holder and blade
therein through an arc of approximately 180 de
grees as the elevator reaches the extreme of its
movement in a direction to open the razor, said
last mentioned means including a ratchet pinion
on the blade holder, a pivoted ratchet rack on
the elevator engaging the pinion, a ilnger on the
ratchet rack movable in a slot in the guard and
causing the rack to swing in opposite directions
when the :linger engages the opposite ends of the
rack.
'7. A safety razor including a guard, a handle
secured to the guard, an elevator movable in the
guard, a cap pivotally connected to the elevator,
a blade holder having rotary mounting in the
elevator, cooperating means between the guard
and cap causing the cap to swing from closed to
open position when the elevator is moved in one
direction and from open to closed position when
u the elevator is moved in the opposite direction,
and means for turning the blade holder and blade
therein through an arc of approximately 180 de
grees as the elevator reaches the extreme oi' its
movement in a direction to open the razor, said
last mentioned means including a ratchet pinion
on the blade holder, a pivoted ratchet rack on
the elevator engaging the pinion, a finger on the
ratchet rack movable in a slot in the guard and
causing the rack to swing in opposite directions
when the finger engages the opposite ends of the
rack, said blade holder having a limited vertical
movement‘in the elevator.
8. A safety razor including a guard, a handle
secured to the guard, an elevator movable in the
guard, a cap pivotally connected to the elevator,
a blade holder having rotary mounting in the
elevator, cooperating means between the guard
and cap causing the cap to swing from closed to
open position when the elevator is moved in one
direction and from open to closed position when
the elevator is moved-in the oppodte direction,
and means for turning the blade holder and blade
therein through an arc of approximately 180 de
grees as the elevator reaches the extreme of its
movement in a direction to open the raacr, said
last mentioned means including a ratchet pinion
8
on the blade holder, a pivoted ratchet rack on
the elevator engaging the pinion, a ilnger on the
ratchet rack movable in a slot in the guard and
causing the rack to swing in opposite directions
when the finger engages the opposite ends of the
rack, longitudinal ribs on the blade holder adapt
ed to enter a slot in the blade, and a turnbutton
on the blade holder adapted to clamp the blade
to the holder.
9. A safety razor including a guard of general 10
inverted channel shape, an elevator movable in
the guard, a cap pivotally connected to the ele
vator, a blade holder having rotary mounting in
the elevator, means for moving the elevator in
the guard, means for causing the cap to swing 16
out of position above the guard when the blade
holder is elevated, and means adapted to turn
the blade holder when the elevator approaches
the extreme of its upward movement.
10. A safety razor including a guard, a handle
affixed to the guard, an elevator movable in the
guard, a cap pivotally connected to the elevator,
a lug on the guard, a finger on the cap adapted
to engage the lug and cause the cap to swing
from a position above the guard to a position
outside of the guard and vice versa, a blade
holder having rotary mounting in the elevator,
and means for turning the blade holder when
the elevator nears its highest position.
1l. A safety razor including a guard, a. handle
aflixed to the guard, an elevator movable in the
guard, a cap pivotally connected to the elevator,
a lug on the guard, a ilnger on the cap adapted
to engage the lug and cause the cap to swing
from a position above the guard to a position
outside of the guard and vice versa, a blade
holder having rotary mounting in the elevator,
and means for turning the blade holder when
the elevator nears its highest position, a threaded
rod amxed to the elevator and projecting into
the handle. a sleeve mounted to turn in the
handle and having threaded engagement with
the rod, and a knob on 'the lower end of the
sleeve outside of the handle.
12. A safety razor including a guard, a handle
ailixed to the guard, an elevator movable in the
guard, a cap pivotally connected to the elevator,
a lug on the guard, a ilnger on the cap adapted
to engage the lug and cause the cap to swing
from a position above the guard to a position out
side of the guard and vice versa, a blade holder
having ‘rotary mounting in the elevator, and
means for turning the blade holder when the
elevator nears its highest position, a threaded
rod affixed to the elevator and projecting into
the handle, a sleeve mounted to turn in the
handle and having threaded engagement with
the rod, a knob on the lower end of the sleeve
outside of the handle, and >means for limiting
the movement of the elevator.
WILLIAM
BLACK.
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