Drier

Sept. 10, 1935.

W, L. MARTIN

DRIER

Filed June 25, 1930

2,014,185

Sheets-Sheet 1

<img file="US2014185A_D0001.tif" />

Sept. 10, 1935.

W. L MARTIN

DRIER

Filed June 25, 1930

2,014,185

Sheets-Sheet 2

<img file="US2014185A_D0002.tif" />

Patented Sept. 10, 1935

2,014,185

Claims. &lt;

My invention relates to driers, and has particular reference to driers for use in drying hair or the hands, or the like, and the principal object of my invention is to provide a new and improved drier of this type. In the drawings 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 these drawings: x

Figure 1 is a longitudinal vertical sectional view· of one embodiment herein illustrated,

Figure 2 is a transverse vertical sectional view corresponding substantially to the line o ^F Figure’s is a vertical sectional view corresponding substantially to the line 3—3 of Figure ,

Figure 4 is an enlarged top plan view of a fragment of the forward portion of the drier the casing being broken away to disclose distributing 20 vanes therein, while

Figure 5 is a diagrammatic layout of the electrical means employed in connection with the embodiment illustrated.

The embodiment herein shown comprises a 25 supporting spider i 0, carried by a suitable adjustable support II, having openings 12 and an an nular flange 13 exteriorly rabbeted as at 14 for the reception of the rear end of a casing 15 the flange 13 by screws 16. The casing 15 is forwardly flared as at 17, offset at its ® ' tremity as at 18, and provided with a substan tially annular extension 19 having a beaded forttt q T· z4 CT θ 2 Q

A motor 21 is disposed within the casing 15, having a supporting block 22, ^a®^d thereto by bolts 23, provided with a threaded stud 24 pro jecting through a suitable aperture m the spider 10, and secured by a nut 25.

An inner shell 26 is secured to the motor caso1 bv screws 27, extends forwardly in spaced

Γδ¹,terminating a~t 80 and’ secured by screws to a

UNITED STATES PATENT OFFICE

2,014,185

DRIER

Wendell L. Martin, Cleveland, Ohio, assignor to The Martin Brothers Electric Company, Cleveland, Ohio, a corporation of Ohio ’ Application June 25, 1930, Serial No. 463,647 (Cl. 34—26) concentrically disposed, annularly arranged openings 44, communicating with an annular passage 15 defined by the outer surface of the shell 26 and the inner surface of the casing 15, this passage. also communicating with the openings 12 .in the a , spider 10, cut off, however, from communication with the interior of the shell 26. λ, ,

Disposed substantially intermediately of the shell 26 is an annularly arranged heating coil 33, connected to the shell 26 by eyelet members 34 ex- 10 tending through nested washers 35 disposed upon opposite sides of the adjaeent wall of the shell 26, the ends 36 of the eyelet members 34 being upset to hold them and the washers 35 in position. At the rear of the shell 26 the motor shaft 37 is provided 15 with a fan 38 comprising a plate 39 having central openings 76, a.circumferentially disposed outwardly flared flange 40, and tangentially disposed blades 41 secured to the plate 39. The fan 38 is o a suction type adapted to draw air through the 20 central opening 42 of the ring member 29 discharging such air centrifugally into engagement X the adjacent wall of the shell 26, and thence outwardly through openings 43 in the ring. member 29, also inducing a current of air through the 25 openings 12 in the spider 10 and passage 75, discharging through openings 44 and merging with the air stream issuing from the openings “·

The ring member 29 also has a rearwardly projecting flange 46 providing a support forfiamp 30 sockets 47 supporting therapeutic lamps 48. At the outer sides of the lamps 48 the ring member 29 is provided with a shoulder 49 forming a seat for the edges of a screen 50, detachably secured in position by screws 51 tapped into the shoulder 49. Attention may at this point be directed to the fact that the lamps 48 are located inwardly of the inlet 42, in the inlet stream of air and are exposed toward said inlet and toward the object to be operated upon, thereby radiating light and 40 ing 21 by screws 27, extenas wrw*emanations directly upon the subject, while relation with reference to the wall.of thecasrng nea^ _emanaf.._{ons therefi}._oln heat the surrounding 15, terminating at 80 and secured by screws to» hea _{air thus he}ated is entrained in the shoulder 28 of a supporting ring member 29, and ^a - _{stream of the recircu}lating air, joining a layer 30 of insulating material interposed be- inco g _{is already heated}. _and („e„ the ol th. then M the. shoulder ^Jeem « , _{Jn contra}._{al!tl tt0}„ to _allother devices of which I have knowledge wheie’ in a direct non-recirculating current of air is blown over the source of radiant energy and discharges from the casing, thereby rapidly dissipating the heat generated thereby.

The ring member 2 3 is also provided with a forwardly projecting flange 52, supporting the rear flange 53 of a flared substantially funnel-shaped extension 54, screw bolts 55 securing the flange ⁵⁵ heat emanations therefrom heat the surrounding “nco^ingltream of the recirculating air joining layer 30 of insulating material interposed bevu cHniilrtpr

The outer periphery 31 of the ring member 29 mnports the forward portion of the casing 15, being arranged in front of the offset 18, and a 1 layer 32 of insulating material interposed between the outer periphery 31 of the ring member 29 and adjacent inner surface of the extension 10 The ring member 29 has a central inlet openίηό· 42 communicating with the interior , of the shell 26 annularly arranged outlet openings 43 also communicating with the shell 26, and outer,

3,014,180

S3 of the extension 54 to the ring 29. The extension 54 terminates short of the outer end of the extension 19 as shown, and by reason of its outwardly flared shape, forms with the adjacent S wall of the extension 19 a converging passage 56 into which the air from the interior of the shell 26 and the passageway 75 discharges. Disposed in line with the restricted outer end of the annular passage 56 and forwardly of the end of the 10 extension 54, is an annular deflecting rib 57, carried by the extension 19 adjacent its outer end, and secured by rivets 58, and in the passage 56 are vanes 59 inclined outwardly in opposite directions with reference to the axis of the fan, 15 each comprising a flange 60, secured to the outer surface of the extension 54 by rivets 61, and an upstanding flange 62 providing a vane for distributing the air with reference to the deflecting rib 57.

As shown in Figure 5 the circuit for the motor 21 comprises a branch 63 leading to the line wire 64, and a branch 65 leading to an arcuate terminal 66 of a switch 67 having a lever 68 connected with the line wire 69. The lamps 49 are 2o interposed in a circuit including a branch 70 tapped in the motor circuit and communicating also with the line wire 64 through the branch 63 of the motor circuit; the other branch 71 of the lamp circuit leads to a terminal 72 of the switch 67, adapted to make connection through the lever 68, contact 66, branch' 65, and branch 63 with the line wire 64. The heating coil 33 is interposed in the branches 70 and 71, in parallel with the lamps 48. A resistance coil 73 is connected with 3« the branch 71 of the lamp circuit and with a branch 77 leading to a terminal 74 of the switch 67. With this arrangement engagement of the lever 68 only with the contact 66, the motor can be energized without operation of the lamps 48, 10 heating coil 33 or resistance 73. Movement of the lever 68 clockwise, remaining in engagement with the terminal 66, and coming into engagement with the terminal 74, in addition to the motor 21, brings about energization of the lamps 45 48, the coil 33 and resistance 74. Further movement of the lever 68 until in engagement with the terminal 72, cuts out the resistance 73 as will be appreciated, while maintaining energization of the motor 21, lamps 48, and heating coil 50 33.

When the motor 21 is operating to rotate the fan 38, air is drawn inwardly through the extension 19, thence entering the extension 54, passing through the screen 50, heated by the coil 33, when energized, thrown off by the fan along its circumferential periphery, thence following the contour of the shell 26, again passing over the heating coil 33, and discharging through the openings 43 in the ring member 29, thence pass⁶⁰ ing through the converging annular passage 56, being distributed by the vanes 59, and deflected by the deflecting rib 57, a large portion of the air thus deflected again passing inwardly into the _ funnel-shaped extension 54, and hence recircu⁶⁰ lating.

Owing to their peculiar disposition the lamps direct their energy toward the inlet 42 and the object arranged in the operating chamber, and in a direction opposite to the travel of the air, ' the energy so generated being thus conserved, in contradistinction to those structures in which the energy from the lamps is directed in the same direction as the travel of the air, and is rap75 idly dissipated.

Under these circumstances it will be understood that the embodiment described accomplishes at least the principal object of the invention; however, it will be apparent to those skilled in the art that the invention is susceptible of other uses than those herein described and may 5 be variously changed and modified, all without departing from the spirit of the invention; accordingly it will be understood that the embodiment herein described and shown is illustrative of only one embodiment of the invention, and 10 that the invention is not limited thereto.