US2026991A - Drier - Google Patents

Description

Jan. 7, 1936. W MAR-HN n 2,026,991 l DRIER Filed sept. 21,- 1951- Curtin l N v E. N TO L wy' j? f A A TTQQNEJSQ Wcxldell L@ Patented Jan. 7, 1936 UNITE-D STATES PATENT OFFICE imma Wendell L. Martin, Cleveland, Ohio Application september 21, 1931, serial No. 564,072

4 Claims.

'I'his invention relates to driers, more particularly adapted for use in drying hair and the like, and has for an object the provision of a new and improved device of this character.

In the drawing accompanying this specification and forming a part of this application I have shown, for purposes of illustration, one form which my invention may assume, and in this drawing:

Figure 1 is a vertical sectional view of one embodiment of the invention, showing parts thereof in elevation,

Figure 2 is a vertical sectional view corresponding substantially to the line 2-2 of Figure 1, while Figure 3 is a diagrammatic layout of the electrical circuits employed in connection with said embodiment.

As shown in the drawing, said embodiment comprises a supporting ring I0, of heavy crosssection, having an encircling rib II, and provided with a stud I2 adjustably clamped in a clamp I3 pivotally mounted, as at I4, upon a supporting pedestal I5.

At one side of the ring I0 there is secured a casing member I6 having an offset edge |1 f'ltting over the outer surface of the adjacent portion of the ring I0 and secured in position by screws |8, said casing I6 being substantially hemispherical in shape, with an opening. I9 at its outer end, closed by a grating 2U having elongated openings 2|, and the grating 2li is secured to the casing member I8 by rivets 22.

The opposite edge of the ring I0 supports a casing member 23 having an offset edge 24 iitting over the ring I0 and secured in position by screws 25, the casing member 23 converging outwardly and terminating in a ange 26, and secured to the flange 26 by rivets 21 is a hollow annular head piece 28, formed to dispose its mouth at an angle to the longitudinal axes of the casing members I6 and 23, terminating at its outer end in a rolled bead 29, and disposed in the opening defined by the bead 29, at the lower side thereof, is a tongue 30 secured to the head piece 28 by a bolt 3|, the tongue 30 forming part of a ring 32, the flange 33 of which fits against the bead 29 of the head piece 28, and the remaining portion of which is curved inwardly, as at 34, and beaded as at 35, and is adapted to fit closely about the head of the subject treated, a cut-out 36 being provided to accommodate the forehead struts 38, laterally tilted at an angle to the plane in which the ring I0 lies, each having a flange 39, secured by a screw to the sleeve 31, and each having a iiange 4D secured by a screw 4| to a thickened rib portion 42 formed on the inner surface of the ring Ill, rubber insulating washers 43 being disposed at each side of each flange 40. Secured within the sleeve 31 is a cylindrical body portion of a motor 44, having a rearwardly extending armature shaft 45, to the rear extremity of which is secured a centrifugal fan 46 having the blades thereof so arranged as to draw air inwardly through the openings 2| into the casing member I6, discharge said air spirally past the struts 38, the latter tilted not to impede the spiral' swirling, and cause swirling of said air forwardly through the casing member 23 and still swirling into the head piece 28 and into contact with the head of the subject.

Afnxed at the forward end of the body portion of the motor 44 is a threaded stud 41, extending through a central opening in a combined shield and reilector member 48, the latter having a depressed wall portion 48 bearing against the forward surface of the body portion of the m0- tor 44, rearwardly curved as at 50, and then extending forwardly as at 5I, and the stud 41 also extends through an opening in an annular supporting member 52, and the supporting member 52 is accommodated in a recess formed in an insulating. disk 53, which may be of porcelain, and the wall 49 of the shield member 48, the insulating disk 53, and the supporting member 52 are all held in position upon the stud 41 by a nut 54.

Arranged about the circumferential periphery of the disk 53 is a coil 55 of a character when energized to generate radiant energy in the form of therapeutic infra-red emanations, the coil 55 being annularly arranged, and the disk 53 and coil 55 of such size, as to dispose the coil 55 within the annular compartment defined by the curved portions '50 and 5| of the shield member 48. A screen 51 is mounted in the mouth of the shield and reflector member 48 to prevent the hair of the subject from coming into contact with the coil 55.

By this arrangement the coil 55, while large enough to provide an adequate field of therapeutic emanations, and thus projecting into the path of the annular stream of air passing through the apparatus, is shielded from the influence of said' air stream, and through the presence of the insulating member 53, is also insulated from the shield member 48. The emanations from the coil 55 therefore are directed by the combined shield member and reector i8 forwardly directly in line with the head cavity of the head piece 28, operat- `ing to provide therapeutic emanationsl in an annular field surrounding a substantial portion of said head cavity. Furthermore due to the arrangement of the elements described a chamber 'l0 defined by the combined shield and reflector means and the adjacent walls of the head piece 28, is provided, into which the swirling air stream is discharged and the air thus entering the chamber 1U swirls and eddies in the chamber 'I0 in such manner that recirculating currents are set up which pass to and fro in the chamber 10, into contact with the head of the subject when placed within the head piece 28, and with the heating coil 55, whereby the recirculated air is economically heated and the heat retained, all without bringing relatively cool air into contact with the heating coil 55, the air in the chamber 10 gradually escaping from the head piece 28.

As shown in Figure 3, the motor @it and coil 55 are arranged in circuits including a line wire 58 leading to the motor @d and to the coil 55, while another line wire 59 extends to the movable arm 60 of a switch 6 l, having a terminal 62 connected by a conductor 63 to the other side of the motor 44 and to the terminal 64 of the switch 6|, said switch also having a terminal 65 connected by a conductor 66 with the other end of the coil 55.

When the switch arm 60 of the switch 6I is in engagement with the terminal B2, only the motor 44 is operated, bringing about rotation of the centrifugal fan 66 which draws air inwardly through the openings 2l and induces spiral ow of said air forwardly through the apparatus, such air swirling through the annular pasage defined by casing members I6 and 23, the sleeve 51 and motor 44, swirling thence around the combined shield and reector member 48, the latter constrlcting the passage and setting up a venturi action, and said air then swirling into the head piece 28 and into contact with the head of the subject, thc swirling action of the air setting up the eddying currents heretofore referred and serving to prolong retention of the air within the chamber 10, and thereby prolong contact of the swirling air with the head of the subject.

When the switch arm 60 is simultaneously engaged with the terminals 6B and 65 of the switch 6l, both the motor d@ and coil 55 are energized, operating simultaneously, and due to the provision of the combined shield and reflector member A8 the coil 55 is protected from the iniiuence of the current of air passing through the apparatus, whereby said coil 55, assisted by the reecting properties of the combined shield and reector member 48, is enabled to direct its beneiicial emanations upon the head of the subject at maximum efficiency. The air swirling into the head piece eddies and recirculates in the chamber 'lil in such manner as to be retained therein, be warmed by the coil 55 and produce eddying and recirculating warm air currents, all with economy in expenditure of heat energy and without dimini ishing the effectiveness cf the coil 55 through subjection'to relatively cool air.

It will be apparent to those skilled in the art that the embodiment herein disclosed accomplishes at least the principal object of the invention, and it will be further apparent that said invention has uses and advantages other than those herein particularly referred to, and it also will be understood that the said embodiment may be variously changed and modified without deaoaaaei parting from the spirit of said invention; accordingly it will be understood that the said embodiment is illustrative only and the invention is not limited thereto.

I claim: 5

1. A drier, comprising: annular casing means having an open end portion adapted to be directed toward a subject to be treated; a motor and fan unit disposed insaid casing and cooperating therewith to define an annular passage for air, 10 said motor and fan unit operating to eiect flow of a stream of air through said casing and into contact with said subject, said motor and fan unit carrying a threaded projection; an insulating member carried by said projection and having 15 radiant energy generating means mounted thereon, a shield mounted upon said projection for shielding said generating means from the stream of air passing through said casing means, and a member threaded upon said projection and 20 clamping said insulating member and said shield in xed position with reference to said motor and fan unit.

2. A drier, comprising: annular casing means having an open end portion adapted to be di- 25 rected toward a subject to be treated; a motor and fan unit disposed in said casing and cooperating therewith to dene an annular passage for air, and carrying a threaded projection, said motor and fan unit being operable to eiect 30 iiow of a stream of air through said annular passage and into contact with said subject; an insulating member carried by said projection and having annularly arranged generating means mounted thereon, for generating radiant en- 35 ergy in the form of infra-red emanations, said generating means being of sufficient lateral extent as to project into said annular passage; a shield for shielding said generating means from the stream of air passing through said casing 40 l means, said shield having means for reiiecting emanations from said generating means directly toward said subject, and having a protective screen screening said generating means with reference tosaid subject; and a member threaded 45 upon said projection and clamping said insulating member and said shield in fixed position with reference to said motor and fan unit.

3. A drier, comprising a casing having an open end portion adapted to be directed toward a 50 subject to be treated, means for eiecting flow of air through said casing and into contact with said subject, generating means disposed in said casing and operable to generate radiant energy when incandescent in the form of infra-red 55 emanations, an imperforate dish shaped shield partially enclosing said generating means so as to expose said generating means toward said subject, said shield including a perforate member supported thereby for fully enclosing said 6G generating means and shielding same from the iniiuence of lthe air current passing through and circulating within said casing to maintain incandescence of said generating means while permitting free emanation of radiant energy to- 65 ward the subject to be treated. i

4. A drier, comprising a casing having an open end portion adapted to be directed toward a subject to be treated, means for effecting flow of air through said casing and into contact with 70 said subjecty generating means disposed in said casing and operable to generate radiant energy, when incandescent, in the form of infra-red emanations, an imperforate dished shield partially enclosing said generating means so as to expose said generating means toward said subject, said shield including a screen member at the front of said shield and cooperating with said shield for fully enclosing vsaid generating 5 means and shielding same from the inuence of the air current passing through and circulating within said casing, said shield being of larger diameter than said generating means for facilitating the flow of air through said casing and for effecting preheating of the air current pessing through said casing.

WENDELL L. MARTIN.

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