US1736698A - Iron - Google Patents

Description

Nov. 19, 1929. E. 1.. DAVIS 1,736,698

IRON

Filed Oct. 12. 1927 INVENTOR.

Ernesf L. Pa 768 A TTORN E Y6.

Patented Nov. 19, 1929 UNITE STATES ATENT OFFICE ERNEST L. DAVIS, OF CLEVELAND, OHIO, ASSIGNOR TO THE ACETYLENE STOVE MANU- FACTURING COMPANY, OF CLEVELAND, OHIO, A CQRTORATION OF OHIO IRON Application filed October 12, 1927.

The present invention relates to a gas heated iron, and the principal object thereot is to provide such an iron in which the bottom surface of the iron and particularly the nose thereof will be efficiently heated. A second object is to provide an iron of this type in which the possibility of flare backs is substantially obviated. To the accomplishment of the foregoing and related ends, said invention, then, consists of the means hereinafter fully described and particularly pointed out in the claims.

The annexed drawing and the following description set forth in detail certain mechanism embodying the invention, such disclosed means constituting, however, but one of various mechanical forms in which the principle of the invention may be used.

In said annexed drawing Fig. 1 is a side elevation of an iron constructed according to my invention; Fig. 2 is a transverse section thereof; Fig. 3 is a plan view of the iron, the cover and gaskets having been removed; and Fig. 4 is a vertical section taken on the line 44 of Figs. 2 and 3.

The iron comprises a body portion 1 having a bottom wall 2, side walls 3, a rear wall 4, and a thickened nose 5 having a projection 6 at the lower end thereof. The rear wall 4 is provided with an aperture 7 formed at an angle to the horizontal and adapted to receive a gas inlet tube 8 held in position by a set screw 9. Each lateral wall 3 is provided with an aperture 10 for the admission of air and with a plurality of apertures 11 for the exhaust of excess quantities of burned gas. A passage 12 is formed in the thickened nose portion 5 and extends from the lower portion of the recess 1 in the body upwardly through the nose to the upper surface of the body portion. The rear wall is provided with a tapped hole 13 adapted to receive a screw 14 having a knurled head 15 which carries a flange 16.

Within the recess there are formed pair of inclined bases 17. Attached to these bases by screws 13, or similar fastening means, is a shield generally indicated at 19 comprising flanges 20 and strips 21 formed integral with said flanges and defining very narrow open- Serial No. 225,697.

ings 22 therebetween. The strips 21 are given a semi-cylindrical form as is clearly shown in Fig. 4.

A cover 23 carries adjacent its forward end a downwardly extending projection 24 to which is attached a spud 25 adapted to be received in a correspondingly formed conical recess 26 in the nose portion of the body. The rear end of the cover is formed with a slot 27 adapted to receive the stem of the screw 14 and with a shoulder 28 on which the flange 16 of the screw 14 is adapted to bear to clamp the cover into position on the body portion. Gaskets 29 are clamped between the cover and the body portion, and it will be noted that an aperture 30 is formed in theforward end of the cover to register with the outer end of the passage 12, and-that similar apertures 31 are formed in the gaskets 29. The gaskets are suitably apertured to provide for the passage of the projection 24, the screw 14 and the screws 34 hereinafter to be described.

Adjacent the upper edge of each lateral wall of the body portion, two large ventilating openings 32 are formed,said openings being shielded by a screen 33 held in place by rivets 60. Screws 34 are received in openings 35 in the cover portion, retaining the gaskets 29 in place on the cover. Screws 36 are also threaded into apertures 35 to secure the handle 37 to the cover portion. Slots 38 are also provided in the cover portion as clearly shown in Figs. 1 and 2. The shield 19 is adjustably mounted on the bases 17 through the medium of screws 18 and elongated slots .39 in the flanges 20.

As will be obvious, the angle at which the gas inlet tube 8 is mounted will cause the flame therefrom to impinge directly on the bottom wall 2, and will cause the hot burning gases to flow immediately to the outlet passage 12 through the thickened nose 5, thus heating the nose and the projection 6 thereon. It is well known that the nose portion of'an iron will cool more quickly than the rest of the ironing surface unless special provision is made for supplying it with a preponderance of heat. It will further be noted that I have provided an iron in which the danger of flare backs from the combust ion chamber is almost entirely eliminated, and in which a novel form of shield has been provided to take the place of the usual closely surrounding screen.

Other modes of applying the principle of my invention may be employed instead of the one explained, change being made as regards the mechanism herein disclosed, provided the means stated by any of the following claims or the equivalent of such stated means be employed.

I therefore particularly point out and distinctly claim as my invention l. A shield for confining burning gases comprising a pair of spaced base strips integrally joined by a plurality of semi-cylindrically formed and progressively smaller strips defining narrow interstices.

2. VA self-heating iron comprising a bottom wall and lateral walls enclosing a recess, a gas inlet tube mounted in an aperture in the rear wall, air-inlet apertures in the lateral walls, an outlet opening for burned gases in the front wall, and a shield comprising a plurality of closely spaced strips defining a forwardly tapering combustion chamber in said recess between said tube and said outlet opening, said combustion chamber merging with said outlet opening.

3 A self-heating iron comprising a bottom wall, lateral walls, and a thickened nose portion enclosing a recess, a gas inlet tube so mounted in the rear wall as to direct gas against the bottom wall, a passage extending from a point in said recess adjacent said bottom wall upwardly through said nose portion for exhausting burned gases from said recess, an outlet opening for burned gases in the front wall, and a forwardly tapering and upwardly curved shield defining a combustion chamber in said recess between said tube and said passage.

a. In a self-heating iron, the combination with a recessed body portion having a thickened nose portion, a gas inlet tube extending through the rear wall into said recess, an inclined tubular exhaust passage extending from said recess upwardly through the thick ened nose portion of said body, and air-inlet apertures in the lateral walls of said body portion and leading to said recess, of a cover for said body portion, means for attaching said cover to said body portion, and an aperture in said cover adapted to register with the outer end of said exhaust passage.

5. In a self-heating iron, the combination with a recessed body portion having a thickened nose portioma gas inlet tube extending through the rear wall into said recess, an ex haust passage extending from said recess upwardly through the thickened nose portion of said body, and air-inlet apertures in the lateral walls of said body portion and leading to said recess, of a cover for said body portion comprising a plate having an aperture in its forward end adapted to register with the outer end of said exhaust passage, a downwardly extending projection adjacent the forward end of said plate, means carried by said projection for engagement with a recess provided in said nose portion, and means for clamping the rear end of said plate in position.

'6. In a self-heating iron, the combination with a recessed bodyportion having a thickened nose portion, a gas inlet tube extending through the rear wall into said recess, an exhaust passage extending from said recess upwardly through the thickened nose portion of said body, and air-inlet apertures in the lateral walls of said body portion and leading to said recess, of a cover for said body portion comprising plate having an aperture in its forward end adapted to register with the outer end of said exhaust passage, a downwardly extending projection adjacent the forward end of said plate, means carried by said projection for engagement with a recess provided in said nose portion, a slot in the rear end of said plate, and a screw adapted to be threaded into a tapped hole in the body, the stem of said screw being received in said slot, and the knurled head of said screw being adapted to bear on the upper surface of said plate.

7. In a self-heating iron, the combination with a recessed body portion having a thickened nose portion, a gas inlet tube extending through the rear wall into said recess, an exhaust passage extending from said recess upwardly through the thickened nose portion of said body, and air-inlet apertures in the lateral walls of said body portion and leading to said recess, of a cover forsaid body portion comprising a plate having an aperture in its forward end adapted to register with the outer end of said exhaust passage, a downwardly extending projection adjacent the forward end of said plate, means carried by said projection for engagement with a recess provided in said nose portion, means for clamping the rear end of said plate in position, a pair of apertures adjacent the upper edge of each side wall of said body portion, and a screen in said body portion for shield ing said apertures.

8. In a self-heating iron, the combination with a recessed body portion having a thickened nose portion, a gas inlet tube extending through the rear wall into said recess, an exhaust passage extending from said recess'upwardly through the thickened nose portion of said body, and air-inlet apertures in the lateral walls of said body portion and leading to said recess, of a cover forv said body portion comprising a plate having an aperture in its forward end adapted to register with the outer end of said exhaust passage, a downwardly extending projection adjacent the forward end of said plate, means carried by said projection for engagement With a recess provided in said nose portion, means for clamping the rear end of said plate in position, a pair of apertures adjacent the upper edge of each side Wall of said body portion, a gasket clamped between said plate and said body portion, and a screen in said body portion and bearing against the under surface of said gasket for shielding said apertures.

9. A self-heating iron comprising a body portion having a recess, a burner projecting into said recess, an exhaust passage leading from said recess, and a shield in advance of said burner, said shield being upwardly 15 arched and tapering towards said passage, the forward surface of said passage being a continuation of the loWer surface of said recess.

10. A self-heating iron comprising a body portion having a recess, a burner projecting into said recess, a substantially semi-conical shield in advance of said burner, and a substantially vertical passage leading from a point directly below the small end of said shield upwardly through said body.

Signed by me this 6th day of October, 1927.

ERNEST L. DAVIS.

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