US2288346A

US2288346A - Hair-curling device

Info

Publication number: US2288346A
Application number: US299821A
Authority: US
Inventors: Dunner Max
Original assignee: Individual
Current assignee: Individual
Priority date: 1939-10-17
Filing date: 1939-10-17
Publication date: 1942-06-30
Anticipated expiration: 1959-06-30

Description

June 30, 1942. M. DUNNER HAIR-CURLING DEVICE Filed Oct. 17, 1959 INVENTOR. 4/6L1' flan/161 BY ;@W

ATTORNEY6 Patented June 30, 1942 HAIR-CURLING DEVICE Max Dunner, Brooklyn, N. Y., assignor to William Finkelstein, New York, N. Y., doing business as Eastern Trading Company Application October 17, 1939, Serial No. 299,821

3 Claims.

My invention relates to a new and improved hair curling device.

One of the objects of the invention is to provide a simple hair curling device of the wellknown type in which a Bobby pin is held detachably upon the curler.

Another object of the invention is to provide a device which can be manufactured and assembled at very low cost and which will be simple and convenient to use.

Other objects of my invention will be set forth in the following description and drawing which illustrates certain preferred embodiments, it being understood that the above statement of the objects of my invention is intended to generally explain the same without limiting it in any manner.

Fig. 1 is a sectional view on the line I-I of Fig. 2.

Fig. 2 is a top plan view of Fig. 1.

Fig. 3 is a bottom plan View of Fig. 1.

Fig. 4 is an end elevation, taken at the lefthand side of Fig. 1.

Fig. 5 and Fig. 6 are respectively sectional views on the lines 5-5 and 6-45 of Fig. 1.

Fig. 7 is a side elevation of the inner tube of the curler.

Fig. 8 is a partial top plan view of the inner tube of the curler.

Fig. 9 is a sectional view on the line 9-9 of Fig. 4.

The device comprises an outer rigid shell or tube I which is made of any suitable metal or other material. A rigid ferrule 5, which is made of metal or other suitable material, is rigidly assembled with the rear end of the shell I, so that shell I and ferrule 5 turn in unison. Said ferrule 5 has a lateral rear wall which is provided with a bore. The inner tube II], which is rigid and which is made of metal or other suitable material, is freely turnable relative to the outer tube I. The rear end of the inner tube I0 has an enlarged head II which provides a bearing for the inner tube ID in the bore of the rear wall of the ferrule 5. A clamping arm 2 is connected by a pivot pin 3 to the outer tube I. For this purpose, the clamping arm 2 and the outer tube I are respectively provided with integral lugs through which the pivot pin 3 passes. A spring 4 normally holds the clamping arm 2 against the outer wall of the shell I.

In Fig. 1, the clamping arm 2 is shown as having been turned away from the shell I by finger pressure, in order to admit the end H of a lock of hair H between the shell I and the clamping 55 tube I0.

arm 2. When the finger pressure is released, the clamping arm 2 holds the end H clamped against the shell I.

The sleeve 6 is made of Bakelite or metal or other suitable material. This sleeve 6 has a main bore 6a at the inner end thereof. This bore 6a is of circular cross-section. The sleeve 6 also has a supplemental bore 6b at the outer end thereof. This supplemental bore 6b is of non-circular cross-section. In the specific embodiment disclosed, the cross-section of the bore 51) is elliptical. The outer wall of the sleeve is provided with a shoulder l3. Said outer wall of the sleeve 5 has planar portions 1 and 8 which are parallel to the longitudinal axis of the main bore 6a. Said outer wall also has a planar wall portion 9, which is inclined relative to the longitudinal axis of the main bore 6a. The bore of the inner tube I0 is of circular cross-section, save at the front end or tip of said inner tube II), where said inner tube is flattened at I2, in order to provide a tip which has a non-circular cross-section. In the particular embodiment disclosed herein, the flattened portion or tip I2 includes a concave-convex wall. Said tip is laterally tapered and enlarged in a predetermined plane, as shown in Fig. 8. This plane is parallel to the major axis of the elliptical bore 6b. Said bore 62) can have any shape to receive the enlarged tip.

Hence the inner tube It! has a straight longitudinal axis which is coincident with the straight longitudinal axis of the outer tube I. The lefthand or front end of inner tube I0 projects longitudinally in front of the front end of the outer tube I.

The parts can be assembled by inserting the main cylindrical portion of the tube III through the bore 6a until the front end of tip I2 is flush with the front end of sleeve 6." The inner tube IE] is thus assembled with the sleeve 6, before the inner tube It) and the sleeve 6 are inserted into their respective positions which are shown in Fig. 1. The tube I0 is then inserted into the position shown in Fig. 1 and the sleeve 6 is simultaneously inserted into the respective position shown in Fig. 1. The shoulder I3 of the sleeve 6 then abuts the outer end-wall of the shell I. The rear end of the tube I 0 then projects through the opening in the rear end-wall of the ferrule 5, and said rearwardly projecting end of the tube It) is then enlarged to form the bearing. The sleeve 6 can be turned freely relative to the outer shell I, in unison with the inner The sleeve 6 has a tight or drive fit upon a part of the tube Ill. The sleeve 6 is prevented from moving longitudinally relative to shell I and tube 2 by the shoulder I3, and because the tip I2 abuts all or a part of the wall of bore 622. The Bobby pin P may be of any conventional shape. It may have one straight leg and one corrugated leg, or two corrugated legs, or two straight legs.

The outer end-wall of the tip I2 is designated by the reference numeral I l and the planar outer wall of said tip I2 is designated by the reference numeral lea. One of the shanks of a resilient Bobby pin P can be pushed through the tip .I2 and into the cylindrical portion of the tube III, as shown in Fig. 1. The other or non-inserted leg of the Bobby pin is caused to rest upon the inclined wall 9 of the sleeve 6. The resilient Bobby pin has a predetermined normal shape and the legs of the Bobby pin are moved apart from their normal position when the Bobby pin is assembled with the curler as shown in Fig. 1.

The resilience of the non-inserted leg of the Bobby pin holds the inserted leg inclined to the common longitudinal axis of the tubes I and Iii, and said resilience is even sufficient to bend the inserted leg of the Bobby pin between the tip of said leg and the loop of the Bobby pin. There is enough relative movement between the inserted leg of the Bobby pin and the tip i2 to permit the inserted leg to be bent into the shape shown 1 in Fig. 1, in which the normally straight shank of the Bobby pin is bent to provide two legs which are inclined to each other. However, if desired, the inserted leg of the Bobby pin may be held parallel to the common longitudinal axis of the tubes I and Iii; and without bending said inserted leg substantially out of. its predetermined normal shape. The bending of the inserted leg of the Bobby pin is thus secured without providing the tube I 9 with any angular extension. The invention is not limited to the use of the tube or sleeve 6, as this serves, in effect, as one of the bearings which hold the tubes I and I8 spaced from each other. The purpose of flattening the tube I2 is to limit the relative turning movement between the inserted leg of the Bobby pin and the tube Iii, at the front end-wall I I of said tube. As shown in Fig. 1, the tube III has a straight axis.

In order to use the device, the Bobby pin P is the clamping arm 2 is released so that the end H is firmly clamped. The shell I is then turned by one hand of the operator, while the sleeve I5 is held against turning by the other hand, until the lock of hair is wound up spirally around the tube I and the clamping bar 2. The clamping bar 2 is then turned so as to release end H, and. the curled lock of hair is slid longitudinally so that the non-inserted leg of the Bobby pin overlies the outer wall of the lock and the inserted leg of the Bobby pin enters the bore of said lock. When the curling device is removed from the lock of hair, the lock of hair is then clamped in curled shape between the shanks of the resilient Bobby pin P.

One of the advantages of the device is that the sleeve 6 can be made of Bakelite or other nonmetallic material, and that the tube It reinforces the bore of said sleeve 6.

I have shown a preferred embodiment of my invention, but it is clear that numerous changes and omissions can be made without departing from its spirit.

For example the clamp 2 is not a necessary part of the device because the lock of hair can be wound spirally around the member I without using a clamp. Likewise the member I may form part of a comb or other device. Likewise the in vention is not restricated to a device in which the sleeve I5 is turnable relative to the shell I. If desired, the member 8 could be integral with the shell I.

In the more general aspect of the invention, it comprises a curler having a bore which extends to the front end of said curler. The portion of said bore which corresponds to the member I2 is located at and adjacent the front end of the curler. Said portion of the bore is of non-circular cross-section. Likewise it has a smaller crosssectional area than the next adjacent portion of the bore, said next adjacent portion of the bore being the cylindrical bore of the member I8. The bore of the tube It is sufficiently small in relation to the outer diameter of the sleeve 6, so as to cause the bending of the inserted leg of the Bobby pin, due to the force which is exerted by the free leg of the Bobby pin when said free leg abuts the wall member 9.

Another advantage of providing the curler with a reduced bore at and adjacent the front end of said curler is that there is less tendency for the Bobby pin to spring out of the inserted position which is shown in Fig. 1.

I claim:

1. A curler comprising an outer hollow member, an inner member located in said outer member, said inner member and said outer member having straight and coincident longitudinal axes, said inner member being rotatable relative to the outer member, the front end-portion of the inner member projecting longitudinally in front of the front end-wall of the outer member, a sleeve mounted on the inner member, said sleeve being rotatable relative to the outer member, said sleeve having a rear portion thereof located between the front end-portion of the outer member and the respective part of the inner member, said sleeve also having a front portion which is located in front of the front end-wall of the outer member, the outer and inner walls of the rear portion of the sleeve being cylindrical respectively and substantially abutting the adjacent portions of the inner wall of the outer member and the outer wall of the inner member, the front portion of the sleeve having an outwardly tapered bore of substantially elliptical cross-section, the front end-portion of said inner member being located in said outwardly tapered bore and having a substantially fiat wall and a wall of partial elliptical contour and being outwardly tapered, said wall of partial elliptical contour abutting a part of the wall of said outwardly tapered bore, said flat wall being spaced laterally from the wall of said outwardly tapered bore, said abutment of said wall of partial elliptical contour with the wall of said outwardly tapered bore compelling said inner member and said sleeve to turn in unison relative to the outer member, said inner member having supplemental bearing means which are located rearwardly of said sleeve, said inner member being hollow at and behind the end-portion thereof, to receive a shank of a Bobby-pin, said inner member being insertable rearwardly through said sleeve until said wall of partial elliptical contour abuts a part of the wall of said outwardly tapered bore.

2. A device according to claim 1 in which said sleeve has a planar wall against which one shank of a Bobby-pin is adapted to abut when the other shank of said Bobby-pin is located partially in the hollow of said inner member.

3. A curler comprising an outer hollow member, an inner member located in said outer member, said inner member and said outer member having straight and coincident axes, said inner member being rotatable relative to the outer member, the front end-portion of the inner member projecting longitudinally in front of the front end of the outer member, a sleeve mounted on the inner member, said sleeve being rotatable relative to the outer member, said sleeve being located intermediate the outer member and the inner member, the inner member being insertable rearwardly through said sleeve, the front end-portion of the inner member having an outer wall which non-rotatably interfits with the respective part of the inner wall of the sleeve so that the inner member and the sleeve can rotate relative to the outer member only in unison, said inner member having bearing means located rearwardly of said sleeve.

MAX DUNNER.