US1708079A - Electric pressing appliance - Google Patents

Description

April 9, 1929- "c. A. BREWER 1,708,079

ELECTRIC PRESSING APPLIANCE v Filed July 10, 192's 2 Sheets-Sheet 1 I Q I I INVENTOR @MMIEM BY 2 3 w ronuays Patented Apr. 9, 1929.

UNH'F STAS FAIENT FFEQE.

CHARLES A. BREWER, OF NORQTON HEIGHTS, CONNEGTICUT, ASSIGNOR I'D CANNON ENGINEERING 00., 01? BROOKLYN, NEW

YORK, A CQRPORATION OF NEW YORK.

ELECTRIC PRESSING APPLIANCE.

Application filed m 10, 1925. Serial in. 42,677.

This invention relates to improvements in electrically heated pressing appliances; and the invention has reference, more particularly, to a novel construction and arrangement of electric heating means for pressing or flat irons, pressing bucks and similar pressing appliances.

Heretofore electrically heated pressing appliances, of the kind above mentioned, have been provided in which the electric heating element has been imbedded in the body of the pressing face of the appliance so as to transfer heat thereto directly by contact and conduction. Such arrangements are not altogether satisfactory for the reason that such direct application of heat is very diflicult to control in degree, and the tendencyto overheat the pressing face of the appliance is Very marked. Such overheating of the pressing face frequently results in the scorching of the goods undergoing the pressing operation, and is often otherwise detrimental to both the iron or appliance itself, as well as to the functioning of the same.

It is the object of this invention to provide a novel construction and arrangement of electric heating means for pressing appliances which is designed to overcome the objections and detrimental effects attending heated devices above pointed out. To this end, the invention provides a novel electric heating means so constructed and arranged as to heat the pressing face of the appliance by radiated and reflected heat as opposed to directly conducted heat, so that tendency toward overheating of the pressing face of the appliance is avoided, and likelihood of scorching the goods operated upon is largely overcome.

The invention has for a further object to provide an arrangement of heating element, forhcating the pressing face of the appliance it serves by radiated or reflected heat, which is adjustable to attain more or less regula tion of the heat intensity transmitted to the pressing face of said appliance.

Other objects of this time more particularly enumerated, Will be clearly understood from the following detailed description of the same.

The invention is clearly illustrated in the accompanying drawings-,-- in which Fig. 1 is a vertical longitudinal section of a flat'iron provided with the novel arrangement and construction of electric heating direct invention, not at this means made according to. and embodying the prlnciples of this invention;-Fig. 2 1s a fragm'entary partial longitudinal section of a flat pressing head equipped with my novel construction and arrangement of electric heating means; and Fig. 4 is a fragmentary transverse vertical section through the same, taken on line H in said Fig. 3.

- Similar characters of reference are employed in all of the hereinabove describe-d views, to indicate corresponding. parts.-

Referring now to Fig. l of the drawings, 1 have shown therein a flat iron of the dry pressing type, the same comprising a main body 5 which is preferably made of cast metal to provide the desired weight. This main body 5 is shaped to provide in its underside a chamber or compartment 6 open at the bottom of the body. Secured to the up- I the periphery of the body 5, and suitably secured thereto by spinning or shrinking the other method of atmay be found expedient or sheet metal plate 10, when thus fastened, is stretched tightly or tautly in relation to the bottom of the body 5, and is thus disposed to provide the pressing face of the iron.

same in place, or by any tachment which desirable. Said ber or compartment 6 of the iron body 5, so

"as to be opposed to the pressing face-plate 10 thereof, is a concavo-convex reflector member 12, the concave surface of which is, preferably, highly polished'to provide an eflicient reflecting surface.

Supported intermediate the reflecting sure face of said reflector member 12 and the pressing face plate 10 is an electric incandescent heating coil. 13 of any suitable or well known detail construction. It is desirable to so support saidheating coil 13 that it may be vertically adjusted intermediate the press-v mg face plate 10 andreflector member 12.

Suitably secured within the interior cham- 95 Various forms of. adjustable supporting.

means may be devised. illustrative of such adjustable supporting means, I have shown an adjusting screw 14 which is journaled tor rotative movement in said bail 7, but which is retained against longitudinal movement by a collar 15 which engages the under side of said bail, and a finger piece 16 which engages the upper side of said bail, and which iron body is provided with a socket 18 within which said nut-piece 17 is vertically movable, and said reflector member 12 is providedv with an opening 19 through which saidnut-piece may extend. The nut-piece is retained against rotative movement, yet tree for vertical or up and down travel, by

' means of a key-stud 20 which rides in a vertical guide groove 21 provided in the side of said socket 18. Said heating coil 13 is supported from the lower free end of said nut-piece by means of a yoke-member 22 which is interconnected between the latter and the ends of the former. From the above de scription," and an inspection of Fig. 1 of the drawings, it will be quite evident that, by turning the adjusting screw 14:, the nut-piece 1? will be caused to travel up or down thereon as the case may be, to thereby adjust the position of the heating coil 13 relative to the reflecting surface of said reflector member 12. Supported in connection with the heel of the iron body 5;, and insulated therefrom-by insulator sleeves 23 are the usual contact pins 24 to receive the plugor ordinary coupling device (not shown) whereby electric current may be delivered from a source of supply. The terminals of the heating coil 13 are connected in circuit with said contact pins 2% in any suitable manner.

If desired the iron body '5 may be provided with any desired arrangement and form of ventilating openings 25 leading outwardly from the interior of the chamber or compartment 6, so that unutilized heat may be vented to the atmosphere. In operation, the heat generated by the incandescent heating coil 13 is transferred solely by radiation'and by reflection from the reflector member 12 to the relatively thin pressing face plate 10, and consequently direct heat transfer by conduction tending to overheat is eliminated. As a consequence the likelihood of heating the pressing face or" the ron to a degree sufficient to produce scorchmg of the goods, to which the pressing face of the iron is applied, is avoided, and yet a "degree of heat'at the pressing face adequate for efliclent pressing efi'ect uponthe goods nvoaova is readily attained. The reflected heat from the reflector member may be easily controlled or eihciently applied to the pressing face plate by adjusting the heating coil toward or away from the reflector member to produce the desired focusing or concentration of the reflected heat waves. @wing to the tact that the pressing face plate is relatively thin, there is little tendency of the same to retain and accumulate heat transmitted thereto so as to build up its temperature to excessive degree, for the thin pressing face plate readily yields up its heat, and consequently the heat applied to the goods is not stored heat, but rather, to all intents and purposes, merely radiated heat.

Referring now to 2 of the drawings, 1 have shown my novel electric heating arrangement applied to a type of iron commonlyreferred to as a steam iron. To provide this type of iron insert intermediate the pressing face plate 10/ and the iron body 5 an intermediate partition plate 26, also made of relatively thin or sheet metal, and by means of marginal spacer members 2?, interposed between said pressing face plate 19 and said partition plate 26, a steam chamber 28 is formed intermediate said plates.

Connected with the heel of the iron body 5 is a steam intake-conduit 28 the inner end of 'which is secured in connection with and passes through said partition plate 26, so that said conduit communicates with the steam chamber 28. A steam supply hose 29 is coupled with the outer end of said conduit 28', to thereby deliver steam to the chamber 28 from a suitable source of supply. The pressing face plate 10 is perforated as shown to provide vents 30, through which steam may be extravasated and applied to the goods during the pressing operations. The arrangement of the heating coil 13 and reflector member 12, and other features employed in con nection therewith as above described is the same, as will be inferred by reason of the application in said Fig. 2 of the same identifying reference characters.

Referring now to Figs. 3 and 4: of the accompanying drawings, l have shown therein a pressing appliance in the form of a tailors pressing machine or buclt, the same being equipped with the novel electric heating means made according to the principle of this invention. Such pressing machines or bucks usually comprise a stationary member to support the goods and a pressing member moviable toward and away from said stationary member, and either or both oi said members may be heated. So far as this invention is concerned, I do not limit myself to any particular detail construction of such pressing machine or buck, and it will be understood that the detail construction of the pressing machine or buck shown in the accompanying drawings,-is shown only as illustrative of the application of my novel electric heating means to pressing appliances of such general character. As shown, the pressing machine or buck comprises a vertically movable goods supporting member 31 having a table 32. Carried by the frame work 33 of the machine is a heated pressing head, which is arranged for alinement with and above the supporting member 31 so as to be opposed thereto, Whereby, upon upward movement of the latter the goods may be broughtinto contact with and pressed against the said pressing head. The pressing head may comprise a suitable headframe 34, to the lower portion of which is suitably secured, in tautly stretched relation thereto, a relatively thin and preferably sheet metal pressing face plate 35. If desired the pressing face-plate 35 may be faced with a padded covering 36, as shown. Supported above and for vertical adjustment relative to said pressing face plate 35, from the head frame 34, is a concavo-convex reflector member 37, the concave face ofwhich is opposed to the pressing face plate 35, and is preferably of heat to the latter.

1 highly polished to provide an eflicient reflecting surface. Supported in connection with the reflector member 37 is any suitable form of electric incandescent heating coil or ele ment 38, in fixed focused relation thereto. The reflector member 37 is adjustably supported by an adjusting screw 39, which is threaded through the upper portion of said head-frame so as to depend therefrom, the free end of said screw having a swivel connection with said reflector member. By the described arrangement, the reflector member with its heating coil may be adjusted toward and away fromthe pressing face plate 35, to thereby more or less regulate the transmission arrangement of reflector member and heating coil is a modification of that heretofore described in connection with the flat iron type of pressing appliances, and it will be understood, in so far as the broad aspects of this invention areinvolved, that these respective forms of heating means may be interchangeably used in either the flat iron or the buck type of pressing appliance It will also be evident that in operation the buck heating arrangement above described possesses the same manner aii ,adva11tages.of function as heretofore already set forth. If it is desired that the buck pressing member be of the type adapted to extravasate steam to the goods undergoing thepressing operations, such effects may 'be attained by providing above and spaced from the pressing face plate 35 a partition plate 40 to furnish an intermediate steam chamber 41, into which steam may be; de-

livered through a supply pipe 42 adapted The above described to be suitably coupled in communication with said steam chamber. In such case the pressing face plate 35 is perforated to provide vents 13 for the extravasation of steam to the goods being pressed, all of which is clearly shown in Fig. 4 of the drawings.

I am aware that changes may be made in the general arrangements and combinations of the various devices and parts, as well as in the details of the construction of the same, without departing from the scope of this invention as described in the foregoing specification, and as defined in the appended claims. Hence, I do not limit my invention to the exact arrangements and combinations of the said devices and parts as set forth in the foregoing specification, nor do I confine myself to the exact details of the construction of said parts as illustrated in the accompanying drawings.

I claim I 1. In a pressing appliance, a chambered body having a pressing face portion, an electric heating means including a reflector within said chambered body and opposed to said pressing face portion, and manual means for adjusting said heating means toward and away from said pressing face portion of said body. 7

2. An electric flat iron, comprising a main body provided with an internal chamber open at the under side thereof, a relatively thin sheet metal pressing face plate stretched over and closing the open under side of said chamber, an electric heatin means including a reflector within said chamber and opposed to said pressing face plate, and manual means for adjusting said heating means toward and away from said pressing face plate.

3. A-pressing appliance comprising a hollowed out body portion forming an open chamber, a pressing face attached to said body portion closing said chamber, a reflector memher in said chamber, a heat emitting element intermediate said reflector member and said pressing face, and means for adjusting said elementrelative to said reflector member.

4:. A pressing appliancecomprising a hollowed out body portion forming a curved open chamber, a pressing face closing said chamber, a reflector member extending over the walls of said chamber, a heat emitting element intermediate said reflector member,

and said pressing face in focused relation to said reflector member, and means, for varying said. focused relation.

In testimony, that I claim the invention ,set forth above I have hereunto set my hand this Gth day of July, 1925.

CHARLES A. BREWER.

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