US1144614A - Electric sad-iron. - Google Patents

Description

E.- E. ROSE.

v ELECTRIC SAD IRON. APPLICATION FILED DEC. 25, I9I3.

//'WITNESSES: I INVENTOR M10 34 WQIM ADITORNEY 'u ynnn STATES PATET orFioE.

EDWAR? E. ROSE, 0F SWISSVALE, PENNSYLVANIA, :ASSIGNOR TO WESTINGHOUSE ELEC- TR- C AND MANUFACTURING COMPANY, A CORPORATION OF PENNSYLVANIA.

ELECTRIC SAD-IRON.

, To all whom it may concern Be it known that I, EDWARD E. Rose, a citizen of the United States, and a resident of Swissvale, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Electric Sad-Irons,of which the following is a specification.

'My invention relates to electric heating apparatus, and it has special reference to electric sad irons and the like.

The object of my invention is to provide a device of the above-indicated which shall be simple, inexpensive and durable in construction, convenient in assembly, efiective and reliable in operation, and which shall involve a relatively low cost of maintenance and repairs.

With these ends in view, I have devised an electric sad iron that embodies as few complicated or delicate working parts as is compatible with satisfactory operation, and as small a number of inexpensive supporting members as is accordant with durable and serviceable construction. My invention may-more readily be understood 'by reference to the accompanying drawing, in which Figure 1 is a view, partially in section, and partially in elevation, of a sad iron constructed in accordance with my invention;

Fig. 2 is a view in end elevation of the de vice of Fig. 1; Fig. 3 is a plan view of certainof the parts of the iron; and Fig. 4 is a plan viewdf 'the iron, with the'handle removed.

Referring to the drawing, the sad iron shown comprises albase or working member 1', a suitable electric heater 2 therefor, an incasing member or cover 3 for the heater, a clamping plate 4 disposed intermediate the heater and the cover, a suitable handle 5, a

supporting bent strap 6 therefor that is attached to the member 1 by asingle bolt 6,

.a terminal member 7 detachably secured to the handle 5 and the strap 6 and inclosing a projection 8 of the cover 3, and a suitable plug 9 for detachably connecting the heater 2 tea source of energy.

The working member 1 and the heater 2 may have any suitable combined form which will promote good thermal contact. Preferably, a that type of ribbon heater is employed, being suitably positioned by a raised portion 10 disposed on the inner surface of character in thermal contact with the cover 3 Specification of Letters Patent. Patented June 29, 1915 Application filed December 26, 1913. Serial N 0. 808,737. I

the member 1, which member has a substantially centrally disposed threaded recess 11 that registers with a suitable opening in the heater, for a purpose hereinafter specified.

The clamping member 4 comprises a bottom bearing surfacethat 1s disposed in con-- tact with the upper side of the heater '2, a plurality of substantially centrally disposed and upwardly-projecting parallel rlbs 13, and a plurality of stiffening webs 14 extending outwardly from the ribs 13. A relat vely large opening concentrically reglstering with the recess '11 in the working member 1 is provided. A notch 15 is cut in the rear end of the member 4 to permit the passage of a plurality of suitably insulated terminal eonductorsl6 from the heater 2 to the terminal member 7 The cover 3 may be of any suitable hollow form, preferably having the customary pointed front end and flat rear end, and is adapted to have its inner surface rest only upon the ribs 13, being dimensioned in such manner that its lower rim does not quite come incontact with the upper edge of the working member 1..

On its upper external surface, the cover 3 is provided with three spaced and longitu dinally alined bosses or guiding surfaces 17 for the supporting strap '6, and the upright projection or lug 8 is centrally disposed near the rear end of the cover 3 for engagement with the terminal member 7, as hereinafter described. With the exception of the surfaces 17 and the lug 8, the external surface of the cover may be suitably enameled or otherwise finished, as desired. The bolt 6 is adapted to extend through the strap 6, the middle guiding surface 17 of the cover 3 and the relatively largeopening in the clamping member 4 and engage the threaded recess 11 in the working member 1, whereby the parts are suitably clamped together and, in particular, good thermal contact between the heater and the working member is promoted. From the above-described construction it will be seen that the heat generated is almost exclusively absorbed by the working member 1, inasmuch as a heat-insulating body of air is disposed intermediate the cover 3 and the clamping member 4 everywhere except in the relatively small contact surfaces of the ribs 13, and the working member 1 is only through the bolt 6.

The supporting strap 6 is substantially of U-shape, having a fiat portion resting on the guiding surfaces 17 and arms which are attached to the respective ends of the handle by means of a single bolt 18 that extends longitudinallyv therethrough. The rear arm is disposed substantially vertically for suitable attachment to the terminal member 7,

as hereinafterv described.

The member 7 comprises a suitably constructed box open on the side adjacent the rear arm of the strap 6 and having a substantially centrally disposed cylindrical out- Ward extension 19 for the reception of the plug 9, an ear 20 projecting from the upper surface of the extension 19 and a substantially rectangular chamber or shell 21 exthereof, which detachably secured removed from the from the lower surface hell has a substantially rectangular depression 22 centrally disposed in the outer wall just below the extension 19, for a purpose hereinafter specified. The terminal member fits over the lug 8 and is r to the rear arm of the strap 6 by means of a bolt 23, the clamping nut 24 for which is disposed in the deprestending oppositely .sion 22 of the box 21-. The ear 20 is similarly secured upon the bolt 18 to the handle 5 by means of a clamping nut25. As herembefore indicated, the suitably insulated terminal conductors 16 extend frgm the heater 2 up' through the sh'ell 21 to suitable connecting members located within the cylindrical extension 19 The foregoing construction affords a strong, durable and satisfactory heater erminal member. It should be noted that, al hough the strap 6 is attached to the body of the iron at only one point, by means of the bolt 6, yet thestrap and handle are prevented from turning laterally by reason of the engagement of the terminal member to longer life and less wear of the parts.

I do not wish to be restricted to the specific structural details herein set forth, ut desire, that only such limitations shall be imposed as are indicated in the appended claims.

I claim as my invention:

1. In a heating apparatus, the combination with a working member and an electric be of any suitable form located below the plane heater therefor, of an operating handle member, an incasing member and a terminal member for said heater, and means assoclated with said incasing member for partially preventing displacement of said terminal member and said handle member.

2. In a heating apparatus, the combination with a working member and an electric heater therefor, of an operating handle.

member, an incasing member for said heater a terminal member associated with sai handle member, means for preventing direct contact of said handle member and said incasing member, and means secured to said incasing member and disposed within said terminal member for partially ositionin said handle member and sai member.

3. In a sad iron, the combination with a working member and an electric heater therefor, of an operating handle, a unitary sup termina porting membertherefor, an incasing meme her for said heater having projecting therefrom a plurality of spaced guiding surfaces for said supporting member and having a. lug near one end, a plurality of terminals for:

said heater, a casing for said terminals secured to said supporting member and fitting over said lug, and means for clamping to- .gether said working member and said supporting member.

4. In a sad 1I0Il, working member and an electric heater therefor, of an operating handle, a supporting strap therefor of substantially U-shape, a cover for said heater provided on its upper surface with three spaced and alined guiding projections for said strap and with an upright lug near its rear end, a plurality of terminals for said heater, a casing for said terminals detachably secured to said handle and to one arm of said strap and fitting over said lug, a single means extending through the middle guiding rojection for clamping together said wor ing member and said strap, and means disposed intermediate said cover and said heater for the combination with a maintaining intimatd'thermal contact ofthe end, a plurality of terminals for said heater,

a box for said terminals detachably secured to said handle and .to said strap and fitting over said'lug, a clamping plate having a relatively large surface in intimate contact with said heater, and a pair of ribs engag ing the inner surface of said cover, whereby the latter is maintained out of contact with said working member, and a bolt extending a cover for said heater through the middle guiding surface and intermediate said ribs for holding together said working member and said strap, whereby said heater is maintained in intimate thermal contact with said working member.

6. In asad iron, the combination with a heating element and an incasing member therefor, of an operating handle member and a terminal member for said heater secured to said handle member and surrounding a portion of said incasing member.

In a sad iron, the combination with a heating element and an incasing member therefor having an external pro ectiOn, of an operating handle, a supporting member therefor, and a terminal member for said heater secured to said handle and to said supporting member and inclosing said projection.

8. In a sad iron, the combination with a heating element and an incasing member therefor having an upright external lug, of an operating handle, a supporting strap therefor of substantially U-shape, a terminal boX for said heater having one end portion fitting over said' lug and provided with an outwardly projecting ear at the otherend and a depression intermediate the ends, a single means for clamping both arms of said strap and said ear to said handle, and means having a portion disposed in said depression for clamping said box to another portion of said strap.

9. In a sad 11011, the combination with a working member, a heating element therefor, and an incasing member for said heater having an external projection, of an operating handle, a supporting strap therefor, a clamping member disposed intermediate said heating element and said incasing member and having a pair of relatively small surfaces in contact with the latter, a bolt' therefor secured to said incasing member, a

plurality of terminals for said heater, abox for said terminals fitting over said lug and secured to said strap and said handle, and a removable terminal plug for connection to said terminals. and disposed in a substantially horizontal position below the plane of said handle.

In testimony whereof, I have hereunto subscribed my name this 19th day of Dec. 1913.

E'DIVARD E. ROSE.

. Witnesses:

1). E. CARPENTER, B. B. Hmns.

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