US1911213A - Sadiron - Google Patents

Description

My 30, 1933. W `K TAVENDER 1,911,213

SADIRON Filed Oct. 2l, 1930 fi, i@

Patented May 30, 1933 UNITED STATES PATENT OFFICE WALTER K. TAVENDER, OF HAWORTH, NEW JERSEY SADIRON My invention relates to electrically heated irons and the object of my invention is to provide an electrically heated iron with means for generating and superheating steam and releasing the steam thru a plurality of outlets located in the bottom of the iron.

A further object is to provide means for controlling admission and flow of water or steam to the steam chamber of the iron.

rIhe particular construction of the electrical heating features of an iron is not shown in the present drawing as any of the usual heaters designed for the purpose may be used, but the novel features of construction relate to l5 the steamsuperheating chamber and valve governing mechanism.

Referring to the drawing which forms a part of this specification: i

Fig. 1 is a longitudinal sectional view of 20 the iron, illustrating its form and general appearance.

Fig. 2 is a longitudinal sectional view thru the steam chamber taken on line 2-2 of Fig. 3.

Fig. 3 is a cross sectional view of the base portion of the iron taken on line 3 3 of Fig. 2.

Fig. 4 is an illustrational view of the luid governing mechanism, the valve portion of which is shown in vertical section.

indicates the base portion of the iron which is provided with a chamber 11 located in its upper side to receive the heating coils of an electric heater carried by the top por- 5 tion 12.

13 indicates a straight central inlet bore which extends from the butt end 14 of the iron to near the point 15 thereof. 16 indicates bores which serve as passages for conducting the steam to the out-lets 17. The bores 16 respectively, extend from the end 14 of the iron at an angle to the central bore 13 and intersect the bore 13 near the front 45 end of the iron to form an expansion chamber 18. Each of the bores is made by drilling operation, and the ends of the bores 16 are plugged at 19 as shown. The outlet openings are also formed by drillings, and are of small 50 diameter, and are spaced apart from each other in alignment at predetermined distances.

A plug 20 is fixed in the bore 13 and provided with a restricted passage 21 which is in open communication with an inlet passage 55 22 formed in the valve body 23. A valve 24 controls the passage 22 to limit the fluid entering the valve thru the linlet pipe 25.`

The valve stem 24 extends thru a stulingbox 25 and its upper end is connected to the short end of a lever 26 which is ulcrumed at 27 and its free end is provided with a button 28 for the thumb of the user to press against in the act of opening the valve 24.

The body portion 23 comprises a bracket 29 formed integral therewith and having a pocket-seat 30 in which rests the lower end of a helical spring 31, the upper end of which abuts the under side of the lever 26 to hold the valve 24 in its normallyclosed position. The button 28 is located near the front end of the handle 28', and its downward movement is controlled by an adjustable stop 32, a simple form of which is shown as a screw which engages a bracket 33 connected to the top of the iron, and a lock-nut 34 to hold it in its -adjusted position under the lever 26. The valve body is supported on the base portion by a bracket 35 formed integral with the lower part of the body, and held to the base by screws 36 which enter sockets 36 formed in the butt end of the iron, as shown.

In use, steam is conducted from a source of supply to the valve 24 and admitted to passage 22 by pressing on the button 28. y

The steam is thus admitted to the bore 13 and is further heated by heat conducted from the heater in the iron thru the metal, and expanding as it flows to the chamber 18 and therefrom thru the passages 16 to the outlets 17, as will be readily understood.

In using irons of this character, the forward portion or prow 15 comes rst in contact with the relatively cold material being pressed and therefore cools more rapidly. I have therefore provided that the hot fluid shall pass directly thru the inlet bore 13 to the chamber 18 located in the irons prow, the chamber serving as a reservoir for the hot fluid and supplying an increased radiation of heat to the adjacent portion of the pressing surface. In this manner a more even heat over the entire pressing surface is maintained in use.

Having thus described my invention I claim as new:

1. A sad iron of the character described comprising a base castinghaving a fiat pressing surface on its under side and recessed on its upper side to receive an electrical heating element, a plurality of straight drilled bores in said casting extending convergently from the butt end to near the prow end thereof and communicating over the area of their convergence to provide an enlarged steam expansion chamber, said bores and said chamber being formed Within the base casting intermediate its upper recessed side and said pressing surface, a valve controlled passage in communication with one of said bores to admit Huid therein, plugs closing the other bores at the butt end of the Itasting, and steam outlet openings formed in the pressing surface of the base casting in communication with each of said other bores.

2. A sad iron of the character described comprising a base casting having a flat pressing surface on its under side and recessed on its upper side to receive an electrical heating element, a plurality of straight drilled bores in said casting extending convergently from the butt end to near the prow end thereof and communicating over the area of their convergence to provide an enlarged steam expansion chamber, said bores and said chamber being formed Within the base casting intermediate its upper recessed'side and said pressing surface, a Valve controlled passage in communication with one of said bores to admit fluid therein, plugs closing the other bores at the butt end of the casting, and steam outlet openings formed in the pressing surface of the base casting in communication with said chamber and with each of said other bores.

In testimony whereof I have aixed my signature.

WALTER K. TAVENDER.

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