US1151140A

US1151140A - Gas-iron.

Info

Publication number: US1151140A
Application number: US73845312A
Authority: US
Inventors: George Wedderburn
Original assignee: Individual
Current assignee: Individual
Priority date: 1912-12-24
Filing date: 1912-12-24
Publication date: 1915-08-24
Anticipated expiration: 1932-08-24

Description

e. WEDDER'BURN.

GAS IRON.

APPLICATION FILED DEC.24, 1912. 1,151,140. Patented Aug. 24,1915.

3 SHEETS-SHEET I.

L 73 f0 6L MOI/MW G. WEDDERBURN.

GAS IRON. APPLICATION FILED 050.24. 1912.

1 1 5 1 1 40. Patented Aug. 24, 1915.

3 SHEETSSHEET 2.

AAAAAAAAAAAAAAAAAAAAAAAAAAAA G'm D. c.

G. WEDDERBURN.

GAS IRON.

APPLICATION FILED DEC.24, 1912.

1 1 5 1 1 40., Patented Aug. 24, 1915.

3 SHEETS-SHEET 3.

GEORGE WEDDERBURN, OF VIENNA, VIRGINIA.

GAS-IRON.

Specification of Letters Patent.

Patented A11 24, 1915.

Application filed December 24, 1912. Serial No. 738,453.

same time eliminating any possibility of generating poisonous gases such as carbon monoxid as the result of imperfect combustion.

It is a matter of record that hundreds of deaths have resulted from asphyxiation through the liberationof carbon monoxid generated, as a result of imperfect combustion, in household appliances designedto be heated by gas, such as water heaters, gas stoves, gas irons, etc. This appalling result is invariably due to total ignorance on the part of inventors and manufacturers of such appliances of the chemical properties of illuminating gas and of the reaction that takes place when the same is decomposed by ignition in a partially closed receptacle, such as for instance, a gas iron. Hence it is thought proper to give herewith a brief account on the phenomenon of combustion, with relation to the subject under consideration, and thus show how a seemingly trivial change in the mechanical construction of apparatus of this character will result in the liberation of a harmless instead of a poisonous gas, as a product of combustion. Illuminating gas is chiefly composed of compounds of carbon and hydrogen, as well as other substances such as ammonia, hydrogen sulfid, carbon dioxid, atmospheric oxygen, and nitrogen. Since compounds of carbon and hydrogen comprise the principal elements of gas, the other substances above mentioned occur more or less as impurities, we will now consider what occurs when the same is burned in sufficient and insufficient quantities of atmospheric oxygen. Broadly speaking the products of combustion are carbon'monoxid, or carbon dioxid, or both according to the supply of oxygen admitted to the flame. Carbon monoxid is a product of combustion and is generated when gas is burned in a limited supply of oxygen. Itis also formed by the action of carbon or soot on carbon dioxid at high temperatures. Thus it will be seen that improperly constructed appliances designed to burn gas not only liberate carbon monoxid as a direct product of combustion but also set up a secondary generation of this gas by the deposits of carbon or soot which combines with carbon dioxid under theinfluence of heat to form carbon monoxid.- .Carbon monoxid is a colorless and tasteless gas and acts upon the human system as a deadly poison, one per cent. of

the gas being suflicient to prove fatal. Carbon dioxid is the result of combustion under favorable conditions or when gas is burned in abundant quantities of atmospheric oxygen intelligently supplied. This gas, commonly known as carbonic acid gas, is perfectly harmless and is thrown out of the lungs as a waste product of all breathing animals and its liberation as a harmless product of combustion is achieved in the present invention.

With the above and other objects in view the invention comprises certain combinations, constructions and relations of parts, clearly illustrated in the accompanying drawings and fully described in the following specification.

In the drawings Figure 1 is a side elevation of my improved gas heated sad iron, Fig. 2 is a longitudinal sectional view of a modification, Fig. 3 is a top plan view of the form shown in Fig. 2 with the cover of the iron removed, Fig. 4c is a transverse sectional view thereof, Fig. 5 is a longitudinal sectional view of Fig. 1, Fig. 6 is a top plan view thereof with the cover of the iron removed toshow its interior, Fig. 7 is a transverse sectional view taken on line 77 of Fig. 5, Fig. 8 is a vertical longitudinal sectional view of another modified form of the improved gas heated sad iron, Fig. 9 is a top plan view thereof, with the cover removed and a portion of the upper tube broken away to show the arrangement of jet slots in' the lower tube, and Fig. 10 is a transverse sectional view of Fig. 8.

Referring to Fig. 2 of the accompanying drawings 5 denotes the body of the improved gas heated sad iron, which is preferably cast, and which is formed with a base 5 and an upstanding wall 5 integral withsaid base. The exterior of the base and the upstanding wall are suitably finished, as by nickel plating.

Any suitable cover may be employed to close the heating chamber 6, and the cover shown in the drawings comprises a flat body formed with an integral lug 7 which carries a small rivet headed pin 7 which is adapted to engage the recess 7 formed in the forward end portion of thewall 5 The rear end of the cover is formed with a slot 7 which receives the latch pin 8 screw threaded into the heel of the iron body. The pin S carries an angular handle 8 which can be turned across the cover 7 and hold said cover against vertical or longitudinal displacement. A suitable handle frame, 9 is bolted to the cover, and this frame carries a suitable non-conductive handle 10, which may be of wood or other desirable material. No novelty is cl'almed for this construction. My invention resides in the construction of the body ofthe sad iron, whereby gas is fed to. the heating or combustion chamber 6' upper wall portion of this, channel or pas- V ceive any suitable sage 11 is preferably thin, and is formed with a series of longitudinally spaced trans verse jet forming discharge slots 11, through which infiowing fresh air can es cape into the chamber v6. The slots 11 may be of any number or width, and they may be equally or unequally spaced from each other. The upper, wall portion ofthe channel or passage 11 is raised above the plane of the upper surface of the base 5 -ancl the slots 11 are so cut in said upper wall as to provide outwardly inclined or divergent deflecting surfaces 11, whereby the infiowing fresh air will be deflected upwardly to meet the outflowing gas supply.

Gas is suppliedto thecombustion chamber by means of a tube 12 which fits through an .opening formed in the heel of the iron and has its forward end fitted in a socket 12 formed in the toe portion of the iron body. Theouter end of the tube 12 is provided with an angular portion 12 which is provided with a Bunsen mixer 13'and is adapted to reotherwise. I

The lower wall portion of the tube 12 is formed'with a series of transverse longitudinally spaced gas jet forming discharge slots 12, which terminate to provide deflecting,

surfaces 12, whereby the outfiowing gas will be deflected downwardly against the 7 upper wall portion of the channel 11. The

air jet formingslots 11 are preferably wider than the. gas jet forming slots 12, because gas conduit, flexible or ingwall"17 the gas flows under pressure and the air does not. ,The air jet forming slots 11 are ar ranged in staggered relation, or alternately,

to the gas jet forming slots 12,so that the streams flowing throughthe gas jet formingslots 12 will be between air streams, flowing through the air et forming slots 11". The outermost gas jet forming slots 12 are located inwardly of the outermost air jet forming slots 11, so that a jet or stream of fresh air will confine'the gas in the chamber 6, and prevent its leakage tube acts as a baffle for the upfiowing air supply. The transverse gas jet forming slots break the gas supply up into small portions or streams which mix intimately with the inflowing jets of air, so thatthe particles of gas will be united with particles of air, and complete combustionjwill take place, thus avoiding thefformation 0f dan-f gerous products of combustion. The wall 5 or the iron has its upperf side edge cut-away to provide passages 5 through which the products of combustion may escape.

In Figs. 1, 5, 6 and 7 a modifiediforln of the improved iron is shown, consisting of a body 15 having a base 15*" which is formed with a longitudinal valley or recess 15 in which an air tube 16 is disposed, the ends of which are secured respectively'to the heel and the toe of the iron. formed with transverse slots 16 longitiidi nally spaced from each other, in the same manner as theupper wall portion: of the channel 11. The gas supply tube 12 is arranged in the same manner as in Figs. 2, 3

and 4, over the slotted tube 16. By this construction tubeshaving slots of difierent The tube 16 is I widths may be secured in'the iron, or the air 7 tubemay be easily renewed.

Figs. 8, 9-and10 show'another modifica-' tion of the improved gas heated sad iron, wherein both the gas and the air tubes are removable, and consequently renewable. In these figures 17 denotes the body of the sad iron, which has abase 17 a and an upstand- An. oval air tube 18 is ex; tended through an opening in the heel portion of the wall 17 and has'its" forward'or inner end seated on the shoulder 19 of the recess 20, formed in the toe'portion of the wall 17?. Immediately above the'oval' air tube 18 a gas supply tube 21 substantially wall 21 which is disposed directly over the convex upper wall portion of the air Di-shaped in cross section is arranged, said tube 21 being formed with a concave bottom tube 18, and forms a deflector for said air tube 18. The air jet forming slots 18 of the air tube 18 are formed in the side-portions thereof, as shown in Fig. 9, and the gas jet forming slots 21 of the gas supply tube are formed in the side portions thereof, and the air jet forming slots are arranged in staggered relation to the gas jet forming slots, as shown in Fig. 8, providing an intimate mixing of the air and gas. A flexible or other gas conduit may be connected with the gas supply tube in any'suitable manner, and any sultable cover may be employed. The products of combustion exhaust through the cut-away portion 17 forming passages beneath the cover 22.

The lower tube 18 is shown spaced above the base 17, but said tube may be placed closely against said base.v

I claim 1. A gas iron having an air passage extending entirely therethrough from butt to point, openings in the upper wall of said passage, a fuel supply pipe located within said iron directly above said passage, said supply pipe having openings therein inter mediate of the openings in said passage.

2. A gas iron having an air passage extending entirely therethrough from butt to point, openings in the upper wall of said passage, a fuel supply pipe located within said iron directly above said passage, said supply pipe having openings therein intermediate of the openings in said passage, whereby air from said first openings will be caused to intermingle with gas from said second openings to both sides of said first openings.

3. In a sad iron, the combination with a hollow body having an air inlet opening in the rear end thereof, the bottom of said body having a longitudinal chamber therein, said chamber communicating with the air inlet opening in the rear end and having an opening in the upper portion thereof whereby communication is established between the chamber and interior of the hollow body, and a burner tube or pipe extending through the rear end of the body and positioned above. the longitudinal chamber, a recess being formed in the point of the iron and closing the forward end of the burner tube as set forth.

4. In a sad iron, the combination with a hollow body having an air inlet opening in the rear end thereof, the bottom of said body having a longitudinal chamber therein, said chamber communicating with the air inlet opening in the rear end and having an opening in the upper portion thereof whereby communication is established between the chamber and interior of the hollow body, of a burner pipe extending through the rear end of the body and positioned above the longitudinal chamber.

5. A gas iron having an air passage extending entirely therethrough from butt to point said passage having openings therein and a fuel supply pipe located within said iron above said passage, said fuel supply pipe having openings therein arranged in staggered relation .to the openings in said air pipe.

6. A gas iron having an air passage ex tending entirely therethrough from butt to point said passage having openings there in and a fuel supply pipe located within said iron above said passage, said fuel supply pipe having openings therein arranged in staggered relation to the openings-in said air pipe, whereby the wall spaces between the openings of said fuel supply pipe will form deflecting surfaces for the air from said air pipe.

7. A gas iron having an air passage extending entirely therethrough from butt to point said passage having openings therein and a'fuel supply pipe located within'said iron above said passage, said fuel supply pipe having openings therein arranged in staggered relation to the openings in said air pipe, whereby the wall spaces between.

the openings of said fuel pipe will form deflecting surfaces for the air from said air pipe, the openings of said air pipe being relatively larger than the openings of said fuel supply pipe...

8. A gas iron having an air passage extending entirely therethrough from butt to point, said passage having openings therein and a fuel supply pipe located within said iron above said passage, said fuel supply pipe having openings therein arranged in staggered relation to the openings in said air pipe, whereby the Wall spaces between the openings of said fuel supply pipe will form deflecting surfaces for the air from said air pipe, the openings of said air pipe being relatively larger than the openings of said fuel supply pipe, said air passage being formed in the bottom wall of said iron, said air passage being so constructed that air will be admitted thereinto from both the toe and butt end of said iron, said air passage being formed oval in cross section.

9. A gas iron having an air passage ex tending entirely therethrough from buttto point said passage having openings therein and a fuel supply pipe located within said iron above said passage, said fuel supply pipe having openings therein arranged in staggered relation to the openings in said air pipe, whereby the wall spaces between the openings of said fuel pipe will form deflecting surfaces for the air from said air ipe, the opening of said air pipe being relatively larger than the openings of said fuel supply pipe, said air passage being formed in the bottom wall of said iron, said air passage being o constructed that air will be admitted thereinto from both the toe and butt ends of said iron, said air passage being formed oval in cross section, said fuel pipe 7 being oval in cross section. a

10. A sad iron body having a channel eX- tending therethrough from toe to butt with openings in'both ends thereof and a series of openings connecting said channel with the inner chamber of said body, a fuel supply pipe mounted Within said body and having openings therein formed in staggered relation to said first opening.

11. A gas iron having a central longitudinal passage extending therethrough from butt to point, the extremities of which terininate in openings through said butt and point, the upper wall vof said passage having openings therein, and a fuel supply pipe located within said iron above said openings.

12. In a sad iron, a hollow body having a longitudinally disposed chamber formed therein extending from point to butt and communicatingfwith said body, a fuel supply pipe situated above said chamber, said point and butt having intake openings communicating with said chamber, whereby air.

will pass in saidopenings and flow up- Kvardlyfrom said chamber to said hollow body. v

13. A gas iron having a passage extendlng through the bottom wall thereof from butt tudinally disposed intake openings thereincommunicating with said channel.

l5. In a sad iron, the combinationwitha hollow body having air inlet openings in the rear and toe ends thereof, the bottom of said body having a longitudinal chamber therein, said chamber communicating with the air inlet openings in the rear and toe ends and having an opening in the upper portion thereof whereby communication is established between the chamber and interior of the hollow body, a burner pipe extending through the rear end of the body and posi tioned above the longitudinal chamber.

' In testimony whereof I afIiX my signature in'presence of two witnesses, 1

' GEORGE WEDDERBURN.

' Witnesses: 1

O. M. SIMPSON, .B: FRANK GEBEsT.

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

Washington, D. 0.