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Патент USA US2278857

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April 7, 1942.
2,278,857 ^
Filed June 16,y i941r
2 sheets-sheet 1
' »a HM.
April 7, 1942/.
Filed June 16, 1941
2 Sheets-Sheet 2
Patented Àpr. 7, 1942
Gustav Kepler, Chicago, lll.
Application June 16, 1941, serial No. 398,359 ’
(c1. 18a-88)
metal, in most cases aluminum, so that the spool
My invention relates to hair waving appliances,
assembly may be both light and corrosion-re
and more particularly to those which are in the
However, I have found thatfmuch of
form of a small unit designed for waving a lock '
this metal is wasted when Vquantity production
of hair, and my main object is to devise an im
is involved, and I have therefore provided novel
proved spool for the device which enables _the
means for making up a spool of this kind from
latter to be produced at a considerably lower
nat sheet metal, which may be aluminum or any
cost than the standard article.
other suitable metal, whereby to result in a spool
A further object of the invention is to devise
which is as neat and emcient as the standard
a spool which can be made of sheet metal, where
yet much lighter and cheaper to produce.
by to eîîect both a saving in material and render
In accordance with the foregoing, specific ref
the spool lighter and easier to handle.
erenoe to the drawings indicates a typical hair
Another object vof the invention is to design
clamp at 20, this clamp being designed to re
a spool of the above character which can be pro
ceive and clamp a lock of hair at the base, so
duced from flat sheet metaLdeparting from the
as` to position the clamp close to the head. The
usual cast or turned varieties.
clamp has suitable terminal receptacles 2l and
An additional object of the invention is to
22 to seat the projecting trunnions 23 andy 24 of
produce a spool which is light, rigid and in every7
thespool 25. Thus, the latter is formed with
way suitable for the conventional receptacle in
teeth 26 engageable with a spring-detent 21 car
the type of hair waving appliances herein con
ried by the clamp 20. No invention is claimed
19 claims.
With the above objects in view, and any others
which may suggest themselves from the descrip
tion to follow, a better understanding of the in
vention may be had by reference to the accom
panying drawings, in which-
Figure 1 is a plan View of a hair waving ap
for the general assembly just outlined. It will
suince that a bearing is provided by the same
for the spool 25, with the detent 21 designed
to permit the spool to rotate only in one -direc
25 tion, a suitable handle 28 being employed to turn
the spool.
While the conventional spool is solid and ex
tended with integral trunnions; the spool and the
mounted therein;
trunnions in the presenty instance are separate
Fig. 2 is a side view of the showing in Fig. 1,
parts. Thus, the spool illustrated inV Fig. 3 is
as seen from theright;
rolled from a flat sheet of metal to assume the
Fig. 3 is an enlarged elevation of the spool,
proper form, so that the spool will necessarily ‘
partly broken away;
pliance showing one form of the improved spool
Fig. 4 is a section of a cap applicable to the
left-hand portion of the spool depicted in Fig. 3;
Fig. 5 is an assembly of the cap in Fig. 4
mounted on the corresponding end of the spool;
Fig. 6 is a right-hand end view of the spool
show a split or line 29 in its side. Since the metal
is light and may twist from excessive strain dur
ing rotation, I have formed _the joints of the
spool wall with locking tongues 30, these resist
ing end-wise or oblique inñuences to deform the
spool. Thus, -a spool so rolled by machine will
shown in Fig. 3;
its substantial cylindrical or conical form as
Fig. '7 is a section of a cap applicable to the
right-hand end of the spool depicted in Fig. 3; 40 sume suflicient strength to serve the purpose of
its use.
Fig. 8 is a top plan View of the spool as seen
In order to provide the trunnion 23 for the
in Fig. 1, partly broken away;
spool 25, the latter is adapted to receive a simple
Fig. 9 is a section on the line 9-9 of Fig. 8;
cap 3l which is extended with the trunnion 23
Fig. 10 is a view similar to Fig. 1 on an en
from its back. This cap is shown in Fig. 4, and
larged scale, and showing another form of the 45 it
may of course be stamped in one piece from a
improved spool;
of sheet metal; however, kwhen the cap is
Figs. 11 to 12 are, respectively, left-hand and
applied to the corresponding end of the spool 25,
right-hand end Views of the showing in Fig. 10;
the cap rim 32 vis compressed convergently to
„ Figs. 13 to 15 are perspective views of a set
conform with the taper of the spool and lock the
of parts assemblable in the left-hand region of
cap thereto, as shown in Fig. 5.
the spool; and
The opposite end of the spool receives a >cap
Fig. 16 is a section showing the leit«hand por
33 similar to the cap 3l, but having its trunnion
tion of the spool assembled.
24 considerably longer to afford a receptacle for
Spools in hair waving appliances of the type
the 'handle 28. Fig. 8 Vshows that the stem 34
herein considered are -usually Amade -of solid 5.5
of the handle is pressed out with hooks 35 to en
gage the cap 33 on the inside and so lock the
handle against withdrawal.
The cap 33 is of course stamped from a piece
of sheet metal. However, the teeth 26 are formed
by pressing the cap with an external bead or
crown 36 having a series of louvers constituting
ratchet teeth. These are of course formed in the
process of fabricating the wall of the cap 33.
The conventional spool carries a hair retainer
31 Which is pivoted at one end by means of a
cross-pin 38. The latter is employed in the pres
ent instance to secure the cap 33 to the corre
sponding end of the spool. Thus, the cap is eX
In order that the receptacle 5| may be re
tained in the end of the spool, an end cap is
used, 51. This »cap is originally formed with a
straight rim 58-like the rim 32 of the cap 3|.
However, when the cap 51 is yapplied to the as
sembly of the receptacle 5| and the spool, it is
convergently compressed as in the previous in
stance to appear 'as in Fig. 16 and form a se
curing means for the receptacle.
The installation of the vreceptacle 5| is so
designed that the bead 52 of the clutch forms
a bearing for the rotation of the receptacle.
However, the compression of the disc 51 also
serves to advance its internal portion 59 into
tended from its open or inner end with diametri; '
the neck 53 of the clutch, so that the latter is
cally-opposed stems 39 which are perforated in
.thus locked against egress from the receptacle.
registration. These stems 39 are intended to
It will be evident that both forms of the im
overlie the end of the spool, and in order that
proved spool embody means of a simple charac
the stems may ñt the same more evenly the top
ter to enable the assembly of the spool to be
and bottom of the corresponding spool end are 20 made from sheet metal and by means of dies or
iiattened as indicated at 40 in Figs. 6 and 8; and
forming units following familiar or long-estab~
the stems 39 are pressed somewhat closer in order
lished principles. Thus, the spool can be fab
to fit over the portions 46 while the rim of theV
ricated in large quantities on :an assembly -basis
cap 33 is to all other intents and purposes a con
tinuation of the corresponding end of the spool.
The branches of the retainer 31 are then applied
over the stems 39, and the assembly is joined by
the cross-pin 38 as suggested in Fig. 9.
The assembly just described not only consti
tutes a light and simply-assembled spool, but oc
cupies no more room than the conventional spool.
Nor does it present any projections or additions
which are in the way or might interfere with the
free operation or manipulation of the spool.
In the form of Figs. 10 to 16a spool is used
which embodies an internal clutch, this being a
feature in some hair waving appliances. Thus,
and in a form to serve its purpose efliciently.
Also, the sheet material for the spool is com
mon, so that the cost of a spool made from it
will be considerably less than that of a solid
spool. Finally, the resultant spool will be much
lighter and easier to handle than the standard
While I have described the two varieties of the
improved spool along specific lines, it will be
apparent that various minor «changes or renne
ments may be made therein without departing
from its principle, land I desireto consider all I
such changes or refinements as coming within
the scope .and spirit of the appended claims.
with the hair clamp indicated at 45, the clutch
I claim:
of the spool is in its left-hand end, while the
1. A spool for a hair waving appliance formed
right-hand end is rigid.
40 with spaced bearing receptacles, comprising a tu
Since the right-hand end of the spool is the
bular shell of sheet material, end caps for the
simpler one, its construction will be first out
shell, and trunnions extending outwardly from
lined. The spool is again the tubular type of Fig.
the end Caps and adapted to seat in said recep
3, and the unit applied to its right-hand end is
a precise duplicate of the one illustrated in Figs.
2. 'I’he structure of .claim 1, said shell being
7 to 9, except that the cap 33 is made plain, that
is, without the annular tooth or louver forma
tion, so that the handle 28 is to all intents and
purposes a rigid part of the spool.
The construction of the left-hand or clutching
portion of the spool is novel. _Thus, the conven
tional clutch is formed with a square external
head 46 which is deposited in a rectangular re-
ceptacle 41 of the corresponding clamp bearing
formed from a blank of sheet material rolled ‘and
with its ends closing in a longitudinal meeting
3. The structure of claim 1, said shell con
verging inwardly from its ends, and at least one
of said end caps being pressed convergently
over the corresponding end -of the shell to `be-y
come retained to the same.
4. The structure of claim 1, said shell being
formed from a blank of sheet material rolled and
with its ends closing in a longitudinal meeting
line, and an interlocking joint between the shell
43, so that the head 46 is locked against rotation.
rI‘he head 46 projects inwardly with a shank 49
which carries a torsional spring 50. The latter
cooperates with the wall of a receptacle 5| to per
portions adjacent to said meeting line.
mit the receptacle to rotate in one direction, but
5. The structure of claim 1, said shell being
not in the other.
So far as described the clutch is standard, but 60 formed from a blank of sheet material rolled and
with its ends closing in a longitudinal meeting
for the purpose of the :present development the
shank 49 is formed with a bead 52 and a neck
53 between the bead and the head 46.
The receptacle 5| is in the present case en
larged with a disc 54 at its entrance, the rim of
the disc being extended with a set of equally
spaced lugs 55. The insertion of the receptacle
line, and tongue-and-groove joints formed be
tween the shell portions adjacent to said meeting
6. A spool for a hair waving appliance formed
with spa-ced bearing receptacles and a ratchet
control detent inwardly of one of said receptacles,
comprising a tubular shell of sheet material, end
5| into the corresponding end of the spool is in
tended to place the disc 54 ilush withthe end of
caps for the shell, trunnions extending outwardly
the spool. For this purpose, >such end and the 70 from the end caps and adapted to seat in said
disc are of equal diameter, but the Wall of the
receptacles, and an annular ratchet~tooth forma
spool is formed with a series of open recesses 56,
tion on one of said end caps and adapted to
placed as the lugs 55 and intended to form re
cooperate with said detent.
ceptacles for the same, seating the disc as con
-7. A spool for a hair waving -appliance formed
75 with spaced bearing receptacles and a ratchet
control detentinwardly of one of said receptacles,
.comprising av tubular shell of'sheet material, end '
_ caps for the shell, trunnions extending outward
lyfrom the end caps and :adapted to seat in said
receptacles, and an annular ratchet-tooth >forma
tion pressed out ofl one of said end caps toco
operate with said detent.
flat and substantially parallel and the walls of
the shell being flattened to seat the stems, and
means to attach the latter to the shell for the
retention of the corresponding end cap to the
10. The combination with la spool for a hair
waving appliance formed with spaced bearing
receptacles, the spool carrying a hair retainer
8. The structureof »claim 1, one of said end
formed with opposed ears at one end, the ears
caps overlapping the lcorresponding end of the
the opposite sides of the spool near
shell, opposed stems extending inwardly from 10 overlapping
one end. thereof and being pivotally secured to
the inner edge of the overlapping end cap and
the spool by rivet means; of a Icap ñtting over
lying on opposite sides of the shell, .and means to
said end of the spool, and opposed stems extend- .
Iattach said stems> to the shell for the retention
ing inwardly from the inner edge of the .cap in
ì of the corresponding end >cap to the same.
line with said ears and overlapped by the same,
9. The 'structure of claim 1, one of said end 15 said rivet means also securing the stems for the
:caps overlapping the corresponding end of the
retention of the cap to the spool.
shell, opposed stems extending inwardly from the
inner edge of the overlapping end cap and lying
on opposite sides of the shell, said stems being
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