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Патент USA US2114679

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April 191, 1938,‘
A. GALBRAITH
SAFETY RAZOR
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Filed Sept. 9', 1936
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2,114,679
$114967?
1 Patented Apr. 19,1938 '
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‘ 2,114,679
SAFETY RAZOR
Alexander Galbraith, ' Dalmuir, Scotland’
Applicationseptember 9, 1936, Serial No.'99,9il9
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In Great Britain'ilctcber 2, 1934
(Cl. 30-71)
This invention ‘relates to safety razors, and the point or points‘where the blade is ‘secured,
has for its primary object to providea safety may be obtained by making provision for in
creasing or decreasing, at will, the distance from
» ‘razor in which the blade may have a resilience
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Claims.
, comparable with that of the blade of a hollow
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grouiid razori ‘‘
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As is ‘understood, safety razor blades
are
usually clamped more or less rigidly with con
‘ ‘ ~ . siderable "deformation, between guard and end
cap elements, thus producing a heavy or inert
10 feeling in the use of the razor. In effect, there is
probably no existing safety razor which has the
(resilience, tang and clean-cutting action exper
. ienced with the use of a high quality hollow
ground razor.
“ 15‘
the cutting edge or each cutting edge. of the _
blade to the adjacent edge or edges of the end 5
cap.
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In a practical construction, according to the
invention, there may be provided, inter alia,
(a) a variable amount of adjustment between
the guard and end cap elements, while, at the 10'
same time, the greater part of the blade is free
to ?ex transversely of its plane between the said
elements;
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(b) means for adjusting the freedom affordedv
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For a safety razor, to give the same satisfac
’ > tion as a hollow ground razor at its highest point
of ef?ciency, the blademust be afforded consid
' . erable freedom, 1. e., the blade must be so mount
ed. that it has freedom to ?ex transversely of
120 its‘ plane in at least the direction away from the
I guard element.v A safety razor blade answering
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to the blade to ?ex transversely of its plane, said 1,5,,
means ,permittingthe blade to be gripped‘ canti- ’
lever fashion at either end, 'or to be gripped 10-’; "
cally at a point or points shiftable to distribute
the permissible resilience, with a positive grip orv " n
a sliding grip;
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(0) means for adjusting the extent of the cut- .
ting edge or each cutting edge of the razor blade ‘
these conditions‘will retain its e?iciency much
behind the guard and/orend ‘cap elements,
‘longer than the ‘usual, safety razor blade. Ac
The blade may be held positively or with a
1
cordingl'y,'over any-given period, renewals are‘
‘"25 less and economy results,lapart from‘thefact - sliding grip at one end, and while so held may, 25“ _
yet have some degree of freedom at that end:
that fall the qualities >_of .a high class hollow
‘ground razor are at the disposal of the user, ' between’ the guard‘ and end cap elements, ‘and.
the permissible ?oating movement of theubladet
I without sacri?ce of the safety properties.
> These requirements are ful?lled by the pres-5
‘ ‘ a ‘ 30(ent ‘invention,
which
provides
a
safety
razor
having a ?exible blade adapted to be accommo
dated between a guard element and a cap ele
ment in. such wise that the blade is free'of. re
straint by the cap element for at least the great
I , 35 er part of its length or breadth, the, blade'hav
between the said elements greater at the'other
end.
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361
Again, the blade may be held at two points
on the same side of a median line parallel‘ to the
edges of the ‘blade, corresponding to’two of the
points indicated above, and again may have such
degree of freedom as is ‘permitted by the spac- 3'31
ing. freedom to ?ex transversely of‘ its plane in‘ , ing of the guard and end cap elements.
‘
at least the direction away from the guard ele
"ment, within the space between said elements.
,
When the blade is held at one end the blade
Again, the blade may be held only at a point
located centrally of the blade, or in intermediate
positions, between the centre'and either end,
40 is free to ?ex cantilever fashion. With the
blade held at one or more selected points resil
with adjustable ?oating movement at either end, 40
V‘ a sliding grip permitting the blade not only to
the user, it being understood that any one set
ting of the blade may suit a particular strength 45‘
of beard and that strong beards will require less
as before.
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The blade movements described may be ob
‘ ience may be distributed over the blade as de
, sired. Again, the blade may be held locally with v tained singly or in combination as desired by
“ ‘.45‘?ex 1 transversely of its plane but to perform
" limited sliding movements in its own plane.
Further, inthe latter case, the. blade may be free
also to perform angular‘ and/or orbital move
ments in its own plane.
50
Adjustable blade-‘engaging or movement¢re
straining means may be so arranged and dis
tributed as to give any desired resilience to the
,blade.
7
give or resilience of blade than soft beards.
The invention is. illustrated in the accompany
ing drawing in which Figs. 1 and 2 are a vertical
section and a plan view, respectively, showing, 507
by way of example only, a practical construc
tion of a safety razor head. Fig. 3‘is a side ele
vation showing the razor head connected to a
.
In addition, where the blade is restrained at
' I 55 one or more points, variations in resilience, from
handle.
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In the construction shown the cap 6 is adju'st- 55
2
2,114,679 ,7
ably connected to the guard 2 by a screw 'l'pene-v ' and ‘free to move toward and away from said
trating the guard 2, the cap. 6 being tiltable on’
guard, and means for ?xing a portion of the blade
the ball headof the screw 1 so that it may be , longitudinally of saidfree portion against move
adjusted universally relatively to the’ guard 2. 1A: ment toward and away from the guard.
spaced pair'of micrometer screws 8, 9 threaded
I upwardly through bosses It on the guard 2 pre
sent at their upper ends pintles H, 52 engaging
arcuate slots [3, l4 in-the cape, the slots I3, M
being concentric with the screw 1, so that the
cap 6 may be adjusted angularly, aboutthe' axis
of'the screw 7. 'The screws I, 8 and S penetrate
‘a slot [5 in the blade 3, the screws 8, 9 present
ing collars‘ I6, I‘! where they penetrate the
the slot H5.
'2. In a safety razor, in combination, guard and
cap elements, meansfor maintaining said guard
and cap elements at least partially spaced apart’
a distancegreaterthan the thickness of a blade
to beraccommodated between said elements, a
?exible apertured blade accommodated between 10’
said elements, means penetrating said blade and
adjustably connecting saidlelements for per-'
mitting relative angular adjustment of said ele
The screws 8, 9 are formed beyond ments and means engaging said bladeqat select~ '
the collars with laterally projecting tongues l8,
able points to maintain 'a‘ part thereof fixed
I9 engageable selectively with the blade 3 or "against movem‘ent'toward and away from said , with the cap 6.
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elements and for controlling the-freedom of an-,
The handle may be in the form of an inter
other part of the blade to fle‘xrwithin the, space I
nally threaded, tube ?tted to the free end, por— between said elements. .- '
tion of the screw 1.
By’ suitable adjustment of} the. screw :3 the
b1ade'3 maybe nipped against the guardv 2 by
the tongue is while, the screw 8 may be adjusted,
with the tongue l9 bearing against the inner
face of the cap 6. to vary the range through
which the blade is free to flex.
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The angular setting of the tongues l8, l9 also
' affects the resiliency of the blade by virtue of the ,
eccentricityrof the tongues l 8, ea, ~V
V, V
30
The blade may be so lightly held that it is free
to slide in its, own p1ane._
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' It will be obvious from the foregoing that there
exists a wide variety of settings and adjustments
, for the blade, in all of which; the blade is free to,
35‘ ?ex'in the'direction away from. the guard 2. h , >
,3. In a safety razor, in‘ combination,‘ guard '20
and cap elements,‘ a ?exible lslotted'blade'aca
commodated between said elements, a screw pen:
etrating the slot insaid blade and-connecting
said-elements, spacedsscrews adjustably ?tted to‘
one of said elements and engaging theiother of; 25
said elements with freedom, ‘said spaced‘screws
penetrating-theslot in said blade, and tongues
projecting laterally from said last 'mentioned
screws for‘controllingthe position’ of the, blade.
ii. In a’ safetylrazor, in combination, guard 3.0,
and cap elements, iii-eansrlifor maintaining said
guard and capvelements at least partially spaced
apart a distance greater than‘the thicknessof a
bladetobe accommodated between saidelements,
a ‘?exible apertured blade accommodated be?
tween said elements, l‘ means penetrating said
It will be seen that the tongues i8, i5 are en
gageable selectively with the undersideof the cap -
blade and ' adjustably connecting. said elements -
6 whereby to exercise control of the position of
for‘ permitting relative angular adjustment of
3551'
the cap 5 relatively to the guard 2, the cap 6 be-‘ , said’elements, and means engageable with said
40
ing pull-ed towards the guard 2 by the screw; 1.
Manifestly, the blade may be;gripped at one end
blade ‘at selectable points between its ends to
maintain a part thereof ?xed against movement
or the other between the guard and the cap which toward and away from saideleme‘nts and for con
are maintained in spaced relation at the free end,v trolling the freedom of another part of‘ the blade
of the blade by the tongue adjacent thereto.
to ?ex-Within the space between said elements.
Manifestly, the blade may be gripped at or
45
5. In a safety razor, in combinatiomguard and
near' or along one longitudinal edge, so. that it 7 cap elements,‘ a flexible Tapertured blade ‘accom
. may betilte'd out of its plane to .a variable angle modated between said elementaa screw -pene-,
widthwise' between the guard and end cap' ele— , trating vsaid blade and,adjustablyr'connectingjsaid
ments. A handle 20 maybe secured to the razor elements for’ permitting relative" angular; adjust- '
50 head by screwing it onto ‘the projecting end of
ment. of, said elements, and means .engageable 60.
the screw’ 1, as shown in‘FigVSI.
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with one face of said blade and- with'theiadjacent
face of one of said elements, said means being ad
justable to’ vary the point of engagement with
cap, means for spacing the guard from the cap > psaidjblade and to varyla dihedral angle contained .
throughout at least a portion of the length there "between said elements by movement of the 'por
I claim:—
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1,. In arsafety razor; in combination, a guard, a
of, said space being greater than the thickness of
tion of the element engagedv therebygwith respect 7
a blade to be positionedv between said guard and »' to the other ~‘element to ‘a ’ greater extent than
cap, a blade between said guard and cap, said
blade having a portion extending into said space
the remaining portion thereof.
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ALEXANDER GALBRAITH.
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