US1403432A - Iron - Google Patents

Description

l. W. MCGILVRAY AND J. WELLERSDICK.

IRON..

APPLICATION FILED APR. 9, |921.

Patented Jan. 10, 1922.

2 SHtETS-SHEET 2.

Kram? M JQ II Ir.

D. MW /mm ATTORN EY WITNESS:

UNITED STATES PATENT OFFICE.

IRON.

Specication of Letters Yatent. Patented J 3,11. 10, 1922.

Application led April 9, 1921. Serial No. 460,072.

To all whom t may concern:

Be it known that we, JOHN W. MCGIL- vRAY and JOSEPH WnLLERsnioK, citizens of the United States, residing at Torrington, in the county of Litchfield and State of Connecticut, have invented new and useful Improvements in Iron, of which the following is a. specification.

Our present invention has reference to improvements in electrically heated sad irons.

An object of the invention is to improve the general construction of this class of devices by producing a sad iron provided with a core of heat retaining property secured tothe base and to the outer casing of the iron in a novel manner.

A further object is to provide in an electrically heated sad iron thermostatically influenced means for indicating the exact temperature of the iron and whereby the operator can properly employ the device upon varying qualitiesand classes of goods to be ironed which require an iron heated at different degrees for proper operation thereon.'

The foregoing, and other objects which will appear as the nature of the invention is better understood, may be accomplished by a construction, combination and operative association of parts, a satisfactory embodiment of which being disclosed by the drawings which accompany and which form part of this application. The drawings, it is to be understood, illustrate merely a satisfactory embodiment of the improvement reduced to practice, and we are entitled to make all such changes therefrom as fall within the scope of what is claimed.

In the drawings Figure 1 is a plan view of an electrically heated iron in accordance with this invention, the handle being removed.

Figure 2 is. a side elevation of the complete iron. v

Figure 3 is a sectional view on the line 3 3 of Figure 1, a portion of theA handle being illustrated.

Figure 1 is a plan view of the thermostatically influenced spring and the indi- /cator hand. f

Figure 5 is a rear end view l thereof. Figure 6 is a perspective view of the crank shaft engaged by the spring.

' Figure 7 is a perspect've view of the thermostatically influenced spring.

As disclosed by the drawings, we construct our iron to include a base 1, which may be of steel, hardened iron or any other desired material. The base 1 has its point and sides provided with a continuous inwardly inclined flange 2, and within the iange and resting on the top of the base is the heating unit 3. The heating'unit is encased in a suitable insulating member 4;. l

Received within the flange 2, and resting on the upper surface of the insulating facing 4 for the heating unit 3 is a core 5. The core is constructed of some suitable heat retaining material and has its outer .surface shaped to correspond with the inclined sides, vfront and rear of the base 1. On the core 5 is a hollow member in the nature of a cap 6. The cap is shaped to snugly receive the core therein and has its lower edge resting on the straight upper face of the flange 2 v of the base 1, its rear portion, however, be-

.a line with these openings the core 5 is provided with elongated openings 7 The openings 7 communicate with pockets 8, formed from the outer face of the core, and also with openings 9 in the top ofthe cap 6. Passing through these openings are bolts 10. The heads of these bolts are preferably provided with kerfs 11 whereby a screw driver may be employed for turning the same. The heads' of the boltsA also contact with washers 12 .that are disposed on the outer face of the cap 6.

Secured on the bolt 10, and in contacting engagement with the inner walls of the pockets 8 are nuts 13. On these nuts are washers 15. Surrounding the bolts and contactin with the washers are helical springs 16. he bolts pass through openings in the angle base portions 17 of arms 18 that pass through openings in the cap 6 and between which the handle 19 of the iron is secured.

The'springs contact with the under face ofto binding posts 21 secured in insulating v ductors which are attached to the floor lor wall plugs, and the members 24 are surrounded by a shield 25.

Approximately centrally between the bolts l0 the core is provided withv a round depression forming a pocket 26. The top of this pocket is widened, and on the flange thus provided there rests a dial 27. The dial is surrounded by a suitable case of bezel 23 that carries a transparent plate 29. Inthe pocket 26 there is journaled the reduced end 30 of a crank-shaft 3l, the outer straight end of the said shaft vbeing journaled through a bearing opening in the dial plate 27. 0n this end there issecured an indica.- tor hand 32 which is arranged over the dial plate. -By reference to Figures l and 3 of the drawings, it will be seen that the crank shaft 3l is disposed near the rear wall of the pocket 26:

Secured to one of the side wdalls of the pocket 26 is one" arm 33 of a substantially U-shaped spring. The second arm 34 of the spring has its end given a half twist, as at 35 to provide `a flat extension 36 lwhich is bifurcated as at 37 to receive the crank portion 38 of the shaft 31. The U-shaped spring is constructed of laminated metal and 1s, -of course, thermostatically'influenced. On. the dial plate, at'the index end of the hand 32 we inscribe suitable indicia, such as Co1d, Warm, Hot, Very hot, and Dan gerous. By regulating the switch .which controls the current between the house sup,-

" ply and the iron proper heating of the iron claim:- i

l; In an electrically heated sad iron, al

can be obtained, and the degree at which-the 1ron is heated will be readily apparent to the operator, .and it is thought that the foregoingdescription, when taken in connectionj with the drawings will amply set forth'the construction, operation and advantages of the improvement.

.Having described the invention, we

flanged base, a heating unit therein, aminsulating casing enclosing the unit, conduc ltors for theunit, a heat retaining core received in the flange of the base and resting Aon the insulatingcasing, a cap surrounding the core, and a thermostatically iniuenced indicator in the core and visible through the cap, a handle, and removable means securing the handle, cap and core to the base.

2. In an electrically heated sadiron, a l

flanged base, a heating unit therein, an insulating casing enclosing the unit, conduca-.- tors for the unit, a heat retaining core received'in the flange of the base and resting on the insulating casing, a cap ,enclosing the core, a handle, removable means securing the handle, cap and core to the base, a'crank shaft in the core, a thermostatically inluenced laminated spring having a portion secured in the core and another portion engaging the crank of the shaft, an indicator hand on the shaft, a dial over which the indicator is arranged, a bezel over the dial extending -through the cap, and a transparent plate closing the' bezel.

3. In an electrically heated Vsad iron, a flanged base, a heating unit enclosed in an insulating casing which rests onv the base between the Hanges thereof and fully covers such portion of the base, a core of heat retaining material received between. the anges of the hase and 'resting on the insulating casing, conductors for the heating unit, binding' posts for the conductors, a guard surrounding thebinding post,la cap surrounding the core and to which the guard is secured, a handle, means removably securing the cap, handle and core to the base, n v

means locking saidsecuring means', said core having a pockettherein, a dial plate in the pocket, aAcrank shaft journaled in the pocket and dial plate, anindicating hand on the outer end of the crank shaft over the dial plate,- a laminated thermostatically inluenced substantially U-shaped spring hav- JOHN w. MCGILVRAYQ.

JOSEPH WELLERSDICK.

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