US1992388A

US1992388A - Hair waving heater

Info

Publication number: US1992388A
Authority: US
Publication date: 1935-02-26
Anticipated expiration: 1952-02-26

Description

1935. 'r. 1. MOSELEY HAIR WAVING HEATER Filed Sept. 6, 1952 2 Sheets-Sheet l FIE- FIE

PIE .4.

INVENTOR. 75/77/0750 .4 flfose/eg 1935. T. l. MOSELEY HAIR WAVING HEATER Filed Sept. 6, 1932 2 Sheets-Sheet 2 INVENTOR. 75/77///750/7 Mose/6y ATTORNEYS.

FlE ll Gil . compassing drawings.

Patented Feb. 26, 1935 HAIR WAVING HEATER Tomlinson I. Moseley, San Francisco, Calif.,as-

signor to United States Appliance Corporation,

San Francisco, Calif.,

fornia a corporation of Cali- Application September-6, 1932, Serial No. 631,769 H 4 Claims. (Cl. 219-24) I This invention relates generally to heating devices employed in conjunction with permanent waving apparatus, for the steaming of wound hair.

It is an object of the invention to provide a device of the above character which will utilize insulating material as the main portion of the mounting for'the heating elements, in such a manner as to preclude accidental burning of the operator. I

It is a further object of the invention to provide a construction which will make possible the mounting of the heating elements upon members formed of molded phenolic condensate material, without causing the molded material to be deteriorated by the degree of heat employed.

It is a further object of the invention to provide a heating device for waving hair which will be simple in construction, neat in appearance and of relatively light weight.

Another object of the invention is to provide a heating device adapted: particularly for use with waving apparatus such as disclosed in the copending application of Ralph M. Keele, Ser. No. 612.950,,filed'May 23, 1932.

Further objects of the invention will appear from the following description in which the preferred embodiment of my invention has been set forth in detail, in conjunction with the ac- It will be understood that they appended claims are to be accorded a range of equivalents consistent with the state of the prior' art.

Referring to the drawings:

Figure 1 isa side elevational view, showing a heating device incorporating the present invention. v

' Fig. 2 is an end view'of the heating device as showninFig. 1. 7

Fig. 3 is an enlarged cross sectional view taken along the line 3-3 of Fig. 1.

Fig. 4 is a cross sectional detail taken along the line 4--4 of Fig. 3. 1

Fig. 5 is a cross sectional detail taken along the line 55 of Fig. 3.

Fig.6 is a side elevational view, like Fig. 1, but showing one of the cover plates for the electrical terminals removed.

.Fig. 7 is a detail illustrating the construction of the interior of one of the insulating members, forming a part of the mounting for the heating elements.

Fig. 8 is a side elevational View, illustrating hair waving apparatus of the type with which my heater is, particularly adapted to operate.

Fig. 9 is a cross sectional detail taken along the line 9--9 of Fig. 8.

Fig. 10 is a plan view of the protector incorporated with the apparatus of Fig. 8, showing the two clamping bars of the protector swung to openposition.

Fig. 11 is a side elevational view illustrating the apparatus of Fig. 8, with the curlers positioned upon the protector, and with a strand of hair wrapped upon the curlers.

Fig. 12 is a cross sectional detail taken on the line 1212 of Fig. 11, illustrating the manner in which my heater is;applied to the apparatus of Figs. 8 to 11 inclusive. v

Fig. 13is a cross sectional detail taken on the line 1313 of Fig. 8, illustrating the construction of the clutching means incorporated in one of the curlers of the apparatus illustrated in Fig. 8.

Fig. 14 is a cross sectional detail'taken on the .line 14-14 of Fig. 13.

The heating device as illustrated in the drawings consists of a pair, of heating elements 10, which are arranged in opposed relationship. While these elements may beshaped in various ways to accommodate the device to different types of waving apparatus with which it may be employed, for the particular type of waving apparatus which I shall subsequently describe, the elements are preferably relatively fiat and rectangular in contour. -Each element is formed with a metal sheath formed of suitable material, such as sheet aluminum, with an internal electrical resistance element.

As illustrated in Figs. 3,' 4 and 5 the metal sheathof each elementis formed by a piece of sheet metal 11' having its edge portions bent laterally by a suitable press operation. A suitable flat resistance element 12 is accommodated within sheet metal piece 11, and the sheath is then completed by another piece of sheet metal 13. Crimped edges 14 serve to overlap the edges of the sheet metal piece 13; to lock the two parts of the sheath together. Extending along the ends of each of the heating elements 11, there are tongues 16, formed integral with the sheath. Likewise for a purpose which will be presently made clear, the lower longitudinal edge of each element 10 is preferably formed to aiiord longitudinal lips 17, which extend inwardly toward each other. I

The mounting means for the heating elements 10 includes a pair of members 21, which are preferably formed of a suitable molded insulating material which will not readily conduct heat, as for example a molded phenolic condensate product containing a certain amount of asbestos fiber as a filler. Each of the members 21 includes a lower portion 23 of sufiicient dimensions to entirely encompass the outer surfaces of the elements 10, and an upper portion 24 of reduced width serving as a finger hold portion to facilitate manipulation by an operator.

Relative movement between members 21 is afforded by a suitable hinge connection. Thus integral tabs 26 and 27 are shown extending from the inner face of the members 21, and these tabs are connected by a pivot pin 28. A suitable spring 29 associated with pivot pins 28, serves to normally bias or urge the lower portions 23 together. Members 21 are substantially duplicates with exceptionof the spacing of lugs 26 and 27, for connection with the pivot pins 28.

As illustrated more clearly in Fig. 7, the inner face of each of the members 21 is formed to afford air pockets 31, which are segregated by the web 32. Web 32 extends downwardly from an integral boss or pad 33, which is provided with apertures 34.

The vertical end edge portions 36 (Figs. 4 and of members 21, are provided with parallel grooves 37, adapted to slidably receive the tongues 16 of the heating elements 11. When the tongues of the heating elements are fitted within grooves 37, it will be noted that one face of the sheath of each element, may contact the adjacent faces of web 32 and boss 33. Likewise with the elements in proper assembled relationship with respect to members 21, it will be noted that the upper and lower ends of pockets 31 are open to the atmosphere, to permit passage of upwardly flowing convection currents of air.

In order to permit making of electrical connections to the heating elements, a pair of electrical connectors or terminal posts 39 are mounted upon the outer faces of each of the members 21 and 22. These terminals 39 are connected to lead wires 41, which extend thru the aperture 34. Suitable refractory bushings or tubes 42 surround the lead wires 41 (Fig. 4) and the inner ends of these bushings likewise fit within apertures 43 provided in the sheet metal piece 13 of the adjacent heating element. This interlock serves to retain the elements 11 in proper operating position. Terminals 39 are also shown connected to conductors 44, of a flexible electrical cord 46. .These conductors lead thru apertures 47, in order to extend between the fingerhold portions 24. In order to hide the terminals 39, together with lead wires 41, the apertures 34, and the adjacent portions of conductors 44, I provide suitable cover plates 49 (Fig.3), which can likewise be made of suitable insulating material, such as a phenolic condensate product, and which can be secured to the outer faces of members 21 and 22, by means of screws 51.

Before describing the mode of operation of my device, it will be necessary to briefly describe the type of apparatus illustrated in Figs. 8 to 11 inclusive, with which the device is particularly adapted to operate. This apparatus includes a protector 52, adapted to be used in conjunction with a plurality of

curlers

53, 54 and 55. Protector 52 includes the two bar-

like structures

56 and 57 which are hingedly connected together by pivot pin 58, and which may be clamped together upon a strand of hair, by locking means including link 59 and cam lever 61. One end of bar 57 is provided with an upstanding post 62, formed channel shaped and of sheet metal. A similar post 63 is mounted upon link 59. A

pointed element 64 is mounted upon bar 57, to part or divide the strand of hair gripped by the protector. When the protector is in closed position upon a strand of hair, the

posts

62 and 63 are adapted to receive the

curlers

53, 54 and 55, one upon top of the other.

Curlers

53 and 54 can be substantially duplicates, having enlarged ends adapted to loosely fit within

posts

62 and 63.

Curler 55 is shown provided with an end stud 66, adapted to be received within a slot 67 formed in post 62. This stud is also provided with a squared head 63 to receive a wrench. The other end of curler 55 is bored to receive a pin 69. Pin 69 is provided with a spring clutching element 71, such as are well known in the art, whereby pin 69 can turn only in one direction with respect to the body of curler 55. The squared head 72 of pin 69 is adapted to be received within a slot 73, formed in post 63.

Apparatus such as is described above is described generally and claimed in said copending application of Ralph M. Keele, Ser. No. 612,950. It may be explained briefly that in using this apparatus the hair strand is distributed on all of the curlers or waving forms, and that when the wrap upon all of the curlers has been completed, the curlers occupy a position as shown in Fig. 11. A flannel pad 76, moistened with a suitable wavin solution, is then placed over the wound hair, and my heating device is then applied over the pad. In applying the heating device the heating elements 10 are separated by forcing the fing-erhold portions 24 together, and then the fingerhold portions are released to permit the spring 29 to force the heating element 10 against opposite sides of the wound hair. It will be noted that lips 17 engage upon the under side of the lower curler 53, thus tending to retain the heating device in proper position. It will also be noted that the upper edges of the heating elements 10 terminate short of the axis of the upper curler 55. This is for the reason that curler 55 and the hair wound upon the same tend to be heated toa greater degree than the other curlers, due to the natural rise of heat. Therefore it is not only unnecessary to extend the heating elements to a greater height, but by proportioning these elements as shown, undue heating of the upper curler and the portion of the strand wound upon the same, is prevented.

It has been found that members 21 will not deteriorate when elements 10 are heated to a degree such as is required in permanent waving. I attribute this to the fact that ample ventilation is afforded by the pockets 31, and because a minimum area of direct contact is afforded between the heating elements 10 and the molded insulating material. Tongues 16 have a fairly loose engagement with grooves 37, and to this eX- tent the heating elements may be said to be floating within members 21. After the device has been in use for some time the surface layers of insulating material in direct contact with the heating elements become slightly charred, but this charring does not continue to a detrimental degree, and actually appears to afford greater heat insulation.

While I have described my device as being operated from a supply of electrical current, and while certain features of my invention relate particularly to such. electrical devices, it is possible to substitute suitable heat storage elements made of suitable material, such as solid aluminum, in place of electrical heating elements 10. In this event the heat storage elements must of course be far preheated to a determined degree, before applying th same to the wound hair.

I claim:

1. In a heating device for waving hair, a pair of relatively flat opposed heating elements adapted to engage upon opposite sides of wound hair, and mounting means for said elements, said mounting means comprisingmembers formed of nonmetallic insulating material extending over the outer faces of said elements, said members being formed with air pockets on the inner faces of the same and adjacent the outer faces of the elements, said air pockets having their upperand lower ends open to the atmosphere thereby permitting upward flow of convection currents of air. 2. In a heating device for hair waving, a pair of opposed heating elements, said elements being formed of sheet metal sheathing and having tongues formed on their end edges, and mounting means for said elements, said mounting means comprising members formed of insulating material extending over'the outer faces of said elements and having grooves to slidably receive said tongues, and means serving to lock said elements against removal with respect to said members.

3. In a heating device for waving hair, a pair of opposed heating elements adapted toengage upon opposite sides of wound hair, and mounting means for said elements, said mounting means comprising members formed of nonmetallic insulating material extending over the outer faces of said elements, said members being formed with air pockets on the inner faces of the same and adjacent the outer faces of the elements, said air pockets having their upper and lower ends open to the atmosphere thereby permitting upward flow of convection currents of air, and an interlocking connection between the end edges of the heating elements and the adjacent edge portions of said members.

7 4. In a heating device for waving hair, a pair of opposed relatively fiat heating elements adapted to engage upon opposite sides of wound hair, and mounting means for said elements, said mounting means comprising members formed of nonmetallic insulating material extending over the outer faces of said elements, said members being formed with air pockets on the inner faces of the same and adjacent the outer faces of the elements, said air pockets having their upper and lower ends open to the atmosphere thereby permitting upward flow of convection currents of air, and tongue and groove connections between the end edges of the heating elements and the adjacent edge portions of said members.

TOMLINSON I. MOSELEY.