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Патент USA US2111217

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Màrçh 15, 1938. 1
ì v
J. G. LAWRENCE
v
2,111,217
SAFETY RAZOR
Filed May 20, 1935
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2 Sheets-fSheet 1
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March 15,1938. .
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J. G. LAWRENCE
ì ` 2,111,217
SAFETY RAZOR
Filed May 2o, 1935
2 sh'eetsfsheet 2
Patented Mar. 15., 1938
` *2,111,211 f
UNITED - STATES PATENT oFFlcE
2,111,217
sAFE'rr'nAzonÍ
John G. Lawrence, Tampa, Fla.
Application- May `20, 19.35, Serial No. A22,353
y11 claims.
which
._The invention
a.l short 'relates
and usually
to the ii'exible
typfe‘of blade
razor is
the blade and its margins being flanged approxi
mately at right angles to the face of the blade~
.clamped between a >bed plate having a serratedy ` but slightly- inclined toward the slot, as shown at
. or toothed margin projecting` beyond the razor” I9, I9. Beyond the slot I8, preferably to the _.
5 blade forl protecting the face of theuser, and _a` farther end oi’ the blade, there .is a bowed rib 2f. 5
movable -clamping plateor head. In razors of ' the side walls of which‘may 4be continuations of l
this type the sharp edge of the blade is exceed
the ñanges I9, I9.I The slot I8 permits the in
ingly delicate and almost certain to -be -dulled, troduction and removal „of therme@v longitudi-`
to' some extent, by contact with any hard or semi
nally `into and from> a suitable holder, the ñanges
l0 `hard substances.
` The principal object of the present invention,
is-to provide a blade and- holder therefor which
binding of ^the' blade within the parts of the
'willpermit the >aprâlicationgof the bladë'" to the
holder.
holder, and> its vrem val therefrom, without dan->
'
' Other features of improvement will‘appear in
the following descriptlonf-
y
`
'
_ ' The invention, as to some of itsvfeatures, may
2Q ' be variously embodied. ~ 'I‘woforms of the holder
Y , are' hereinafter described and illustratedV in the
accompanying drawings: in -which
Fig, lis an elevation of one form of theirn
proved razor, anv end of‘the head being in view;
Fig. .2 is a sectional viewon the line 2-2 of
F18'.
1^;
.
`
'
Figs. 3 and 4 are sectional details on the lines
3_3 and _4-4. respectively,l of Fig. 2 ;
Fig. 5 is a ~detail elevation of the head of the
30 razor from thee same point oi' View as Fig. 1, the
clamping elements beingshown- in open position
to permit the removal of theblade;
g
'
Y
` The holder comprises a suitable handle bar
ger'oi` having the edge or edges brought in con
. tact with any part of the holder. '
25
I9, is, and rib 20 being adapted to engage suit- 19>
able'guldes forpositioning and facilitatingv the
'
2I, into one end of Iwhich is inserted a` tubular 16
shank 22, which is secured in place by a tight
iltting pin 23. A'longitudinally‘movable spindle"
24, lwhich carries the head of the razor,I projects
through the shank 22, :and is slotted, as shown
atv 25, to receive the pin 23, and its inner end is 20 .
reduced in diameter and threaded,v as shown at
26, to engage a tubularnut 21, which projects
beyondl the handle 2I,`--a knuried annulus//Zß
being fitted upon the outer end of this Vnut and
bearing against the outer end of the handle ele;v 25 '
ment 2l. The nut 21 is provided near its inner
endewith an -annular shoulder 29,J which bears ,
against an inwardly facing complementary shoul
der formed in the handle ban/the described con
struction providing for free turning of the nut but 30
, preventing its longitudinal movement.
The head of the holder comprises a clamping
Fig. 6 is anelevation- showing the head of then plate 30, which may be formed integrally with
razor;
.
the spindle 24, as most plainly shown in Fig.' 3.
Fig. ,'I 1s av plan section of the head o_i' the razor ’This clamping plate is provided with' av central 35.
taken on. the lineI‘l-'I ofFig. .5, ablade being
longitudinal rib on its linner face, to which the
spindle 24 is. integrally connected,as shown in
Fig. 8 is a ,view 1n perspective Jof the clamping- Fig. v8. The portion 3_I_ of thisv rib which extends
plate and its stem;
‘
’ "
inÑ one directionfrom the spindle 24V fits within
Fig. 9 is av view in perspective of the blade -re.- ~ thè slot Il oi’ the blade I5, and snugly between' 40
shown as about to be introduced into. the hea'd’;
40
moved from thezholdei'; `*`
Fig. 10 is a detail -view of the head similar to
Fig. 2, showing a modified form of` construction;
and
45
.
I
'
Figxll isa detail section on- the line II-II'of
Fig. 10.
»
> The blaue 'is usaly with. eitherm the mus»
trated formsof holder, and capable of usewith
other forms thereof, is in the form, of a thin plate.
the flanges I3, I9 securely stabilizing the blade
`against Vlateral movement. Theportion 32`“of this
rib at the opposite side of the spindleA is of such
size-and shape that it snugly engages within the
rib 20 of the bladewhen the „head is closed to 45
clamp the blade, as shown in Figs. 1, 2, and 3,
against a suitable bed.
»
`
'
'A Preferably, though not necessarily, this’ bed
is composed of two» movable' plates 33 and 34,
50 of ñexible elastic material, the general shape of . mounted on a pivot pln'35,-set through the` spln- 50 ,
which is oblong lrectangular.' The margins of die 24 and. ar pivot lug 36 depending from the
its longer sides It,-> I1,/ are brought to `cutting rib 3|.' _When the head is open the'blade is in
edges. The blade ,is centrally longitudinally- serted longitudinally, as indicated in Fig. 7, as
slotted- from one end, as shown at I8, the slot
55 extending somewhat beyond half the length of
suming thev position of Fig. 5. The head now
being closed by the turning or the nut 21, the 55
2
bed plates 33, 34, are drawn down'against and
vside walls of the rib being adapted to engage
firmly seated upon the'end' of the shank 22, as .1’ a positioning rib.
shown in Figs. 1 and 3, the clampingplate 3U
" >3. A blade for safety razors, said blade being
binding the blade i5- firmly against -their upper, oblong in form and having an open slot from one
i
faces.
.
.
e
i end on its median line through more than one
,
When the head is opened by the outward'thrlïst
of the spindle 24, the parts are broughttto the
positions shown4 in Iii‘ig.` 5, the vbed plates 33, 34,
being caused to turn on the pi
.
35 by the en--
10 gagement with them of a pair o` hooked ,lingers
half its length, and a pair of inwardly inclined
flanges at the margin ofthe slot and having a
bowed rib beyond and in line with the slot, sub
stantially as andv for the purpose-described.
4. In a safety razor, a tubular handle, a longi
10
3l, 3l, which extend from the end of the shank
tudinally movable spindle within and projecting
22 into pockets formed in the underfaces of these
cause them to turn on the pivot pin as the head
beyond the handle, a pair of bed plates pivotally
mounted on the spindle and having faces for seat
ing against the end of the handle whenin serv
`ice position, a clamping plate mounted on the
end of the spindle and having on its inner face a
centrally locatedlongitudinal rib, a blade cen
trally slotted from one end to receive the rib, and
means for moving the spindle longitudinally to
-is opened.
>clamp the‘blade between the last-named plate 20
plates, and engage over shoulders 39, 40, formed
therein.
.
In the construction shown _in Figs. 10 and 11,
these hooked fingers are dispensed with, an ex
panding spring 4I being coiled about the pin 35,
its end‘reacting against the two hed> plates to
The bed plates 33, 34, are provided with a series
4of teeth 44 along their outer margins, over and
upon which the edge portions of the blade i5 lie
when 'the parts are in position for use, as shown
25 in Figs. 3 and '4, space being left between the
bed plates and the blade at the bases of the teeth
for the entrance of material removed from the
face of the user, supporting shoulders at the ends »
and the bed plates.
5. In a safety razor, a tubular handle, a longi
tudinally movable spindle within and projecting
beyond the handle, a pair of bed plates pivotally
mounted on the spindle and having faces for seat 25
ing against- the end of the handle when in service
position, a clamping plate mounted on the end
of“ the spindle and having on its inner face a
centrally locatedlongitudinal rib, a blade cen
of the plates, however, being provided, as indi
trally slotted from one end to receive the rib and
30
cated' at 45, 4€. yIn order to protect the corners .having a longitudinal bowed portion in line with 30
of the blade,_as well as the face of the user, from the slot, and means for moving the spindle lon
accidental injury, each of' the bed plates is pro
gitudinally to clamp the blade between the .last
vided adjacent its end with an upstanding boss, named plate and the bed plates.
.
‘
as shown at 42, 43, against which the corners of
6. In a safety razor, a tubular handle, a longi
the blade engage. These bosses are, of course. tudinally movable Yspindle projecting from the
of very slight elevation, as they are not intended handle and now rotatable relatively theretoja
to project above the exposed face of the blade. clamping plate rigidly mounted on the end of the
The blade is entered into the headlongitudi
spindle, a pair >of bed plates pivotally attached to
nally, as suggested in Fig. '7, its slotted end being the spindle and engageable with the end of the 40
in advance. «The inner end. of the rib 20. reaches handle as the spindle is drawn thereinto, where
the spindle 24 when the blade is fully entered. >by the clamping plate and bed -plates are brought
This spindle being now Idrawn down into the into blade binding relation and means for mov
handle by the turning of the nut 21, the parts ing thespindle. _
'
.
of the head are brought together to firmly clamp
7. In a safety raz‘or, a suitable handle, a longi
the blade between the plate 30 and the bed plates tudinally movable spindle- projecting from the
33, 34, and the ribs'3l, 32, insure its correct po
handle, a clamping plate rigidly mounted on the
sitioning. - The blade may be removed by >open
end of the spindle, a pair of 4bed plates pivotally
ing the head and turning it approximately- verti
mounted on the spindle and engageable with the
cal, the rib 32 being downward,- ‘whereupon the end of the handle as the spindle is drawnthere
blade will drop by gravity. In these operations into, whereby the clamping plate and bed plates
,there'is hardly a possibility of the edges of the are brought into blade binding relation, and
blade being- brought into contact with any part means adapted `to turn the bed plates on `their
of- the head or other object,-and hencel these pivot as the spindle is extended to separate them
'
. 'ci Ll
edges are not in danger of injury and are dulled from the compression plate.
8.A In a safety razona suitable handle, a longi-`only by their contact with the user’s face.
The_;clamping plate 4and bed `plates are held tudinally movable spindle projecting from the
. against relative turning movement about the axis handle, a clamping plate rigidlymounted on the
of the handle by their- pivotal connection, andA end' of the spindle, a pair of bed plates pivotally
against such movement together by the pin 23 mounted on the spindle and engageable with co
and by the engagement of the hubs `for the pivot `the end of the handle as the spindle is drawn
pin l5 in a 'transverse slot in the end of the-shankl thereinto, whereby the clamping plate and bed
plates are »,brought into "blade binding relation,
22, when the' head is closed to clampv the blade. .
and means adapted to cause the bed plates to
I claim as my invention- `
.
turn on their pivot away from the compression
1. Anoblong razor blade having La longitudin
plate as the spindle is extended.'
- ’
`
cutting edge, -a longitudinally open slot extend
9.'.
In
a
safety
razor,
a
suitable
handle,
a
1on
ingirom= one end, and spring flanges ñanking the gitudinally movable spindle projecting fromfthe
slot and inclined inwardly with reference thereto. handle, a clampingplate rigidly mounted on the
2. A blade for’ safety’razors, the bladebeing end of the spindle, a pair of bed plates pivotally
oblong in _form and having an open slot from one . mounted on the spindle’ and engageable with the
end through ’more than one-half its length'- and@ end of the handle as the spindle is drawn there
having a bowed rib beyond »and in line -with _the . into, whereby the clamping plate and bed plates. l
f slot, the inner end of the rib constituting an abut , are brought into blade binding relation', and a'
ment for engaging a suitable-stop on a' holder and z -pair of fingers projecting from the~ handle and 75 f
3
engageable with the bed plates to cause `them to
swing on theirV pivot as the spindle is'extended.
10. In a safety razor, a suitable handle, a lon
- _gitudinally movable spindle projecting from the
5 ‘ handle, a clamping plate rigidly mounted on the
end ofthe spindle,_a pair of bed plates pivotally
mounted on the spindle and engageable with the
fend of the handle as the spindle is drawn there
11. »In a safety razor, in combination, a handle,
an extensible spindle projecting from the handle,
a blade clamping plate carried by the spindle and
having a transversely concave inner surface, a
iiexible blade adapted to seat against the concave
face of the plate, and a pair of bed plates pivotal
ly mounted at the end of the handle and movable
about their pivots by the relative movements of
into, whereby the clamping plate and bed plates i the handle and spindle to clamp the blade to the
brought into blade binding relation, and af
~10 are
spring adapted to urge -the bed plates to turn on>
l their pivot as the spindle is extended.
plate.
~
i
_ -JOHN G. LAWRENCE.
10
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