US1139862A - Self-heating iron. - Google Patents

Description

F. H. HARTZELL.

SELF HEATING IRON.

APPLICATION FILED MAY 6. 1914.

1,139,862. Patented May 18, 1915.

2 SHEETS-SHEET l.

If: nuKRlS PETERS (20., PHOTU-LITHQ, WASHINGTON. 04 C F. H. HARTZELL.

SELF HEATING1RON. APPLICATION FILED MAY61 19x4.

Patented May 18, 1915.

2 SHEETS-SHEET 2.

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nonnsr I-I. rrAnrznLL, or DAYTON, onro, ASSIGNOR To rr-rn'onown HARDVIARE MANUFACTURING COMPANY, or DAYTON, onro, A CORPORATION or onro.

' SELF-HEATING IRON.

Specification of Letters Patent; Patentedhllay 18, 1915..

Application filed May 6, 1914. Serial No. 836,805.

the structure ofsuch devices, whereby they will not only be cheapened in construction, but Wlll be more efficient in use, easily operated and controlled and unlikely to get out of repair.

A further object of the invention is to provide an improved formof burner for the use of liquid fuel, and further to provide means for protecting the hand of the opera tor from the intense heat generated by such burner. v

WVith the above primary and other incidental objects in View as will more fully appear in the specification, the invention consists of the features of construction, the parts and combinations thereof or their equivalent as hereinafter described and set forth in the claims.

Referring to the-drawings Figure l is a longitudinal sectional view of the assembled iron. Fig. 2 is a perspective view of the burner removed from thebody of the iron. Fig. 3 is a detail view of the perforated member of the burner before being compressed showing by dotted lines the degree of compression. Fig. t is a transverse sectional view of the burner. Fig. 5 is a transverse sectional view of the assembled iron. Fig. 6 is a bottom plan view of theremovable cover body of the iron. Figs. 7 and 8 are detail, transverse and longitudinal and sectional views respectively of the main body of the iron with the cover and burner removed.

Like parts are indicated by similar characters of reference throughout the several views. a

In constructing the iron, there is employed a main body 1 of the usual proportions and shape having therein a recess or chamber 2 for the reception of the burner. At the rear of the chamber 2 the main body 1 is extended as at 3 so as to form a cup shaped receptacle to form a generating cup in which the fuel may be placed for initially priming the burner. The rear wall of the chamber 2 is slotted as shown at .4, Fig. 7 in which the gage the sides of the slot 4. Projecting horizontally from said head 5 into the cham-.

her 2 is a tubular burner member"? closed at its extremity and perforated on its under side. This hollow burner member is formed from a cylindrical tubular member, such as is shown in Fig. 3providedat one extremity with a closure cap 8, by flattening the cylindrical tube throughout a portion of its length leaving at the open end a cylindrical portion 11, to engage with the head 5. The flattened or ovate shape of the perforated portion of this burner member causes the flame to be distributed more evenly over a wider space upon the bottom of the main body 1, thereby increasing the efficiency of the device. I

Supported upon theihead 5 is a fuel supply conduit 9 communicating with a reservoir 10. This supply "conduit 9 passes through the head 5 above the plane of the perforated burner member and is continued within. the chamber 2, first downward to a plane below the level of the perforated burner member then horizontally parallel with the burner member in a plane below but at one side thereof. The conduit is formed into a U shaped bight below the burner'member and returns on the opposite side thereof to a point adjacent to the head 5 and passes upward and thence through the head and downward as at 12 to a point opposite the open end of the burner member, Where it is provided with the usual needle valve operated by the adjusting wheel 13. The liquid fuel is thus passed from the burner through the conduit in close proximity to the burner where it is transformed into a gaseous product by the heat before being admitted to the burner.

The upper edge of the main body 1 is notched or recessed as shown at 1-4: to permit the escape of the products of'combustion. It has been found by experience that when using irons of this type as usually constructed, theoperator is rendered uncomfortable by the subjection of his hand t heat arising from the iron.

loo

r The removable cover for the main body of the iron comprises a plate. having a down turned flange 16 about the margin thereof spaced outward from the side walls of the chamber 2 and overlapping the notches or recesses 14 :in the upper edges of said walls. 7 Secured to the inner side 'of the plate 15 and located within the chamber 2 is an auxiliary coverplate 17 having a down turned marginal flange 18 spacedinward' from the side walls of the chamber 2 and extending below the level of the notches or recessesllz.

Interposed between the main cover15'and the auxiliary cover 17 isa layer 19 of asbes tos or other heat resisting material. double cover plate15 and 17 with the-interposed layer of the non-conductive material reduces'thetendency of the heat to radiate,

upward and confines the heat to the main body 1 of theliron where it' is most effective;

ator. In additiontothese protective 'fea tures', there is provided a: shield 20 spaced above the cover plate15 to which it is connected by down turned lugs or cars v21 at' each end ofthe shield. This forms between the shield and the cover plate 15 an inter}.

mediate air space 22, by which the heat radiated by theiron is further dispersed be 7 fore reaching the hand of the operator.

The opposite ends of the shield'20 are curved upward'as at 23 to form'supports for the handle 24 to be graspedby the hand of the operator. "As shown in the drawings,

the cover plates'15 and'17 and likewise the shield 20 are preferably though notneces 4O sarily formed from sheetmetalg e To. secure the removable'cover in place there isattach-ed' to the outer side of said cover at the rear thereof, a plate 25 having rearward extending fingers-26 adapted to engage holes 27 in the rearwall of the chamber'2 on each'side of the slot 45. At the for- I ward end of the body 1 there is provided a pivotedlfinger or button 30 normally registering with the slot'29 in the apex of the cover, but which may be turned to a position out of alinement with saidslot 29 to secure the cover in position. As shown in Figs. 1,. I 5 and 6, the'rear end ofthe cover plate 15 is provided with a down turned flange 28 which rests upon the upper side of the. burner head and closes that 'portion of the slot l above the burner when the cover is in place. 7 p v I Having thus described myinventiom-I claim: 1

V 1. In a self heating iron, a chambered mainbody, a burner therein for liquid or gaseous fuel comprising a perforated tubu I la r member flattened throughout a portion of its length-and cylindrical throughout the The body.

remainder of its length, a reservoir forfuel, and a condultleadmg from the reservolr and extending in parallel'relation with the perforated member'at one side thereof and in a plane below that of the perforations of themember then formed into a U-shaped bight beneath the burner member and returning on the opposite side thereof in parallel relation therewith, but in a plane beneath that of the perforationsof the member and discharging into'the cylindrical extremity of'the burner member. o

2. In a self heating iron, a chambered main body, a perforated'burner member lo catedtherein comprising a cylindricaltubu U-shaped bight extending in parallel rela- 'so lar member flattened throughout a portion of its extent, a fuel conduit formed into a' tionxwith' the perforated burner member and the bottom of the main body, said fuel burner member, and a fuel reservoir with which the conduit communicates. V V

3. In a. self heating iron, a chambered 'main body, a heating member therein, a 'cover' for the chambered body, an elongated shield plate having its opposite ends upturned, a handle supported by the upturned conduit discharging into the perforated) ends, and integral dependent lugs connct- 1 ing' he shield plate with the body cover but spaced away therefrom. 7

4. Ina self heating iron, a chambered" main body, a heating member there1n, a

cover for the main body, a'shield plate located in spaced relation above the cover, integral dependent tongues connecting the plate with the cover, the opposite ends" of the platebeing'bent upward, and a handle interposed between the 'upturned'ends of the plate. 7 '5. In a main body havinga recessed upper edge, a

heater-therein, and a cover plate having'a. down turned marginalflange extending be-j low the level of the recesses of the upper edge *of' the main body but spaced away" therefrom. 7 V V 6. In a self heating iron,- a chambered main body having a recessed upper edge-,a

heater therein, a cover plate'for the main body, and afdown turned flange carried by the cover, plate extending within theichamber of the'lnain body in parallel relation with but spaced inward-from the side walls of the main body, extending below the level of the recesses in the upper edge of the main 7. In a self heating iron, a chambered main body having a recessed upper edge, a heater therein, a cover plate for the main body, and double parallel down turned flangesicarried by the cover plate extending below the level of the recesses in the edge of the main body between which the upper edges of the main body project, the flanges self heating iron, a chambered 1 being arranged in parallel relation With but spaced aWay from the side Walls of the main body.

8. In a self heating iron, a chambered main body having a recessed upper edge, a heater therein, a cover plate having down turned flanges inclosing the upper edges of the Walls of the main chamber but spaced away therefrom, an auxiliary cover plate secured to the under side of the cover plate and a down turned flange on the auxiliary cover plate extending Within the main body in parallel relation With, but spaced away from the side Walls of said main body.

9. In a self heating iron, a chambered main body having a recessed upper edge, a heater therein, a cover plate having a down turned flange inclosing theupper edges of the Walls of the main chamber, but spaced away therefrom, an auxiliary cover plate secured to the under side of the main cover plate, a down turned flange on the auxiliary cover plate extending Within the main body in parallel relation With, but spaced away from the side Walls, of said main body, and a layer of nonheat conductive material located intermediate the main and auxiliary cover plates.

10. In a device of the character described, a main body, a burner for liquid or gaseous fuel supported thereon including a tubular member formed by collapsing a cylindrical tube throughout a portion of its length the collapsed portion of the tube having perforations in one of the flattened Walls thereof, and a fuel supply conduit discharging into the uncollapsed portion of the tube.

11. In a device of the character described, 1

a main body, a burner for liquid or gaseous fuel supported thereon including a tubular member flattened horizontally throughout a portion of its length, the flattened horizontal portion being perforated on its under side, and a fuel supply conduit discharging into the unfiattened portion.

12. In a device of the character described, a main body, a burner for liquid or gaseous fuel supported thereon including a tubular member of substantially elliptical cross section throughout a portion of its length, and cylindrical throughout the remainder of its length, the elliptical and cylindrical portions being substantially in axial alinement one With the other, the elliptical portion being perforated, and a fuel supply conduit discharging into the cylindrical portion.

In testimony whereof, I have hereunto set my hand this 17th day of April A. D..

FOREST H. vHARTZELL.

Witnesses:

ROBERT E. COWDEN, F. L. WALKER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. 0.

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