US1484879A - Ironing machine - Google Patents

Description

H. H. FOGWELL ET AL.

Feb, 265 1924a IRONING MACHINE Filed March 127V TORS QV/ Haw/Jon H Eywd/ /mr/ev' J. Heme) 47TORNEY5.

Patented Feb. 226, 1924i. iii" HARRISON H. FOGWELL AND CHARLES J. HEISER, LOS ANGELFS, CALIFORNIA,.AS- SIGNORS OF TWO-THIRDS TO J OHN N. VAN PATTEN, OF LOS ANGELES, CALIFORNIA,

AND ONE-THIRD TO sun HEISER.

I momma MACHINE.

' Application filed March 5, 1921. Serial No. 449,663.

To all whom it may concern:

' Be it known that we, HARRISON H. F oe- WELL and CHARLES J. Hnrsnn, both citizens of the United States, residing at Los 6 Angeles, in the county of Los Angeles and State of California, have invented a new and useful Improvement in Ironing- Machines, of which the following is a specification.

This invention relates to machinery used to smooth or iron fabrics by bringing them into pressured contact with heated surfaces, and particularly to that type in which the material to be ironed is carried around a revolving roller and presented in wiping contact to a stationary heated plate.

It isthe object ofthis invention top'rovide such a machine in which the plate member is electrically heated and which plate membercomprises in itself a homogeneous electric heating element, thereby presenting simplified and novel constructional features and their accompanying reduced manufacturing costs. i

Further objects will become evident in the following specification and the; accompanying drawing which is for illustrative purposes only and presents merely an embodiment of our. invention.

Referring to the drawing Q Fig. 1 is a plan view ofthe construction we employ, the electric connections in which are shown diagrammatically.

Fig. 2 is a cross-section taken upon the line2- 2 of Fig. 1.

Fig. 3 is a cross-section on a plane represented by the line 3-3 of Fig. 1 showing the heating element and its reinforcin plate and illustrates. the manner. in whic same are maintained in working relationship.

Fig.4 is a section similar to Fi 3, but with the reinforcing plate remove 1 A 'roller .11 is rigidly mounted upon shaft 12 having bearing 13 in the supporting bracket 14 and also in the'drive housing 15 45 which rest upon the top 19 of the table 20 1 and is su ported at a suitable height by the letgs '21. he drive mechanism is preferably 0 the worm and gear type and is driven through the shaft 22 on which is mounted a sheave 23 which may be revolved by connection with any suitable source of power.-

In this type of ap 'aratus, it is generally desirable to cover 1; e feed roller 11 with some heavy fabric 25 to better engage the materials to be ironed, and the same may be also suitably padded to,provide a certain amount of resiliency in the surface to care for the difference in thickness of the materials being ironed.

In the provision of an ironing plate which will in itself comprise the heating element, it is desirable to employ an alloy which is slow oxidizing, such as Monel metal. This ironing plate is formed concentric with the feed roller 11 and is turned backat the ends as indicated at 31, and lips 32 and'3 3 are provided to facilitate the passage of the materials between the feed roller and the heating element.

At the two extremities of the ironing plate 30 and adjacent to the turned ends-3l are placed the copper lugs 34 Having inwardly extending portions 35in which are located *the screws 36., The supporting plate is suitably reinforced by the web structure 41, and is contoured to .allow the application of a layer of sheet asbestos, or an suitable heat and electric insulation 4:2 suc as sheet asbestos-between the plate 40 and the ironing plate 30.. The plate 40 is of such length'as to give sufiicient clearance between its ends 42 and the lugs 3st to insulate the extremely roller 11 and the heating element 30 is easily I adjusted by screwing the Wing nut 51 either upwardly or downwardly as the condition may require.

When starting the pieces to be ironed, it is generally desirable to withdraw the heating elementslightly from the feed roller so that the edges of the material to be ironed may be easily inserted. This is accomplished by the use of the foot-pedal 55 hinged to brackets 56 and to theflower extremit of the rod 52 as at' fi'zdepressing the 00t- ;pedal 55, the rod 52 is-lowered against the action of thesprin 50 and the plate 40 caused to act aroun the point of hinge 45 thereby bringing the heating element. into the heat .a position away from the feed roller and leaving a space into which the edges of the materials may be easily fe d.

Mounted on the cross-bars 60 we employ a transformer 65 having a primary winding 66 and a secondary winding 67. Current is supplied at any convenient voltage through the line 68 in which is located a switch 69, and is transformed to low voltage in .the secondary coil 67 from whence itils carried through the ironing plate 30 by the leads 70 and 71 which connect to theterminals 73 idea of mounting this plate against a heatinsulating backing so that a large part of applied dlrectly'to the goods to" be ironed.

It further comprises thevidea of using as anironing plate a sheet ofmateri'al which is slow oxidizing."

We claim as our invention:

1. In an ironing machine, the combinagenerated in theiro'ning plate-is this 25th tion of: a roller; an ironing plate cooperating with said roller; a transformer having a primary and a secondary winding; means for passing an electric current from said secondary winding through said ironing plate; and means for connecting said primary to an external circuit.

2. In an ironing machine, the combination of: a roller; an ironing plate cooperating with said roller; a backing plate supporting said ironing plate; and means for passing an electric current, of sufficient strength to heat said plate; through said ironing plate.

3. In an ironing machine, the combination of: a, roller; an ironing plate cooperating with said roller; a backingtplate supporting said ironing plate; a transformer having a primary and a secondary winding; means for passing an electric current from said secondary winding through said ironing plate, and means for connecting said primary to an external circuit. 4. An electric heating element comprising a plate having a cylindrical surface formed on one side thereof; and means for passing electric current directly through said plate for the purpose of heating the same.

"In testimony whereof, we have hereunto set our hands at Los Angeles, California,

day of February 1921.

HARRISON H. FOGWELL.

CHARLES J. H-EISE-R.

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