US1375863A - Electrical appliance - Google Patents

Description

I. T. STANTON. ELECTRICAL APPLIANCE.

APPLICATION FAILED JUNE I, |920.

Patented Apr. 26,1921.

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| I I I I I l I l n IIIIIII. IIIIIII UIlk @L 'UNITED STATES PATENT OFFICE.

JOH'N T. STANTON, or SEATTLE', WAsImveTon ELECTRICAL Arrnriaivcn Speccation of Letters Patent.

Patented Apr. 26, 1921'.

Application mea :rune 1.1920. serial No. 385,782.

To all whom it may concern:

Be it known that I, JOHN T. STANTON,

i a citizen of the United States, residing at ."Seattle, in the countyof King and State of Washington, have invented certain new and useful Improvementsin Electrical Appliances, of which the following is a specification.

vMy invention relates to improvements in electrical appliances and in the method of making thel same, and the object of my invention is to provide an eiectro-therapeutic blanket that is adapted for use for imparting electrical heat and radiation to the human body for remedial purposes.

Another object is to provide an electrotherapeutic blanket manufactured from material that has been suitably treated to renelectro-therapeutic blanket that combines strength and durability with lightness of weight, simplicity and economy in construction, that is sanitary in use, that can be folded into a very compact Aform when notin use, and that will not readily get out of order.

With the above and other objects in view which will appear as the description proceeds, my invention resides in the novel construction, combination, adaptation and arrangement of parts hereinafter described4 and claimed.

I accomplish these objects by devices illus-A trated in the accompanying drawings, where- 1n Figure 1 is a plan'view of an electrotherapeutic blanket embodying my inven tion, parts being broken away;

Fig. 2 is an enlarged fragmentary view of the same, parts being broken away to disclose other parts; andy Fig. 3 is a fragmentary view in transverse section of the same taken on broken line 3, 3 of Fig. 2 showing more clearly the relative position of the elements .comprising my blanket.

Referring to the drawings, throughout tile fabric which may be made of any suitable material, as crinoline or stifened mus'- -lin, cut in the desired length and width which sheet of material is then stifl'ened by immersing in a solution 'of starch or glue and is also'immersed in a solution of magnesite to provide a' fabric that is lire proof and a non-conductor of electricity whereupon it is allowed to dry.

The narrow strip of tape 7 may be made of cotton or other suitable material and is stiffened, fire proofed and made a non-conductor of electricity and allowed to dry in the identical same manner as the sheet of textile fabric 5.

The insulated copper wire 6 vis laid on the surface of the sheet 5 with the narrow strip of tape 7 superimposed thereon, the said wire 6 and tape 7 being disposed in rows running longitudinally or transversely of the sheet 5 as desired, the said rows being arranged in spaced apart relation as shown in the drawings, the endsl of the rows of wire 6 and tape 7 being looped or bent at a point adjacent the edges of the sheet 5 to form a continuous electrical circuit throughout the structure.

The wire 6 and tape 7 is then stitched with a zig Zag stitch, as at 30, to the sheet 5 by using a zig zag sewing machine in a well known manner. 'It will be obvious that the tape when so stitched forms a fireproof and insulated` pocket for the insulated wire -6 thus preventing any tendency o r danger of short circuiting the circuit of said wire 6.

The terminals 16 of the wire '6 are connected in any known manner to the insulated cord 10 at or near one corner of the blanket, the said cord 10 emerging from the blanket and projecting a'suitable distance therefrom and having its outer ends attached to the cord connector 11. The extension cord 12 connects the cord connector 11 with the snap switch 13, the said cord 12 being of sufficient length to bring the switch 13 within easy reach of the user ofsaid blanket. the switch 13 with the electrlc light socket plug 15 and may be of anysuitable length.

The upper sheet of textile fabric 8 and the lower sheet of textile fabric 9 form the outer covering or quilt of the blanket and may be made of selected printed cotton material or other suitable textile fabric that may be found to best serve as a covering for the said blanket.

The extension cord 14 connects l The sheets 8 and 9 are cut slightly longer and wider than the inner sheet 5 in order to provide sucient material to finish the edges of the blanket as shown more clearly in Fig. 3.

The operation of stitching the wire 6 and tape 7 having been completed the inner sheet 5 is then laid upon the lower sheet 9 and the edges 17 of which are turned upwardly and inwardly so that the edges 17 will overlap Y the edges 18 of the inner sheet 5, as shown in Fig. 3. rllhe upper sheet 8 is then superposed upon the inner sheet 5 and its edges 19 are turned downwardly and inwardly so that they will lie substantially on the ed es 17 of the sheet 9, which edges 19 are fol ed in such manner as lto leave a portion or border 20 projecting beyond the folded edge of the lower sheet 9 around the blanket to give said blanket a nished appearance when the same is completed. The edges having been folded in the above describedmanner are then sewed with a double stitch 21 aroundr` the perimeter of the blanket and as close to the folded edges as possible.

llt will be obvious by referring to Fig. 3

that the edges 18 of the inner sheet 5 are caught in the stitches 21 thus preventing the said sheet from crumpling up within ,the outer sheets.

ll have found in practice and after exhaustive experiments that by using a specic amount of ine copper wire that sufficient resistance is set up toy produce approximately 100 degrees Fahrenheit of heat and creating a ydefinite magnetic field within the blanket when applied to the hum-an body has `a material benecial eiiect. My blanket also is very useful for imparting electrical heat and radiation to the human body for thepurpose of inducing profuse erspiration and consequently the elimination of the waste prod ucts therefrom.

l have ,also found in practice that the principle of my electrical appliance is readily adaptable for use in heating rooms. ll construct the appliance for this purpose in the same manner as hereinbefore described substitutinga good grade of burlap for the crinoline material forming the inner sheet of the appliance, the burlap being treated for sti'ening, fire proofing and making the same a non-conductor of electricity substantially as described for the muslin or crinoine.

1t will be obvious that the principles of my electrical appliance are readily adaptable and applicable to an extensive variety of heating devices such as clothing for aviators, automobile robes, heating pads for beds, shoes, gauntlets and the like.

From the foregoing description taken in connection with the accompanying drawing, the advantages of the construction and of the method of operation will be readily apparent to those skilled in the art to which the invention pertains, and while I have described the principle of operation of the invention, together with the device which ll now consider to be the best embodiment thereof, Idesire to have it understoodthat the device shown is merely illustrative and that such changes may be made when desired as are within the scope of the following claims.

What ll claim is:

-1. The method of fabricating an electrotherapeutic blanket which consists in cutting a sheet of textile fabric ofthe desired size and treating the same with va suitable solution to stiften it then treating it in a solution to make it iireproof and a non-conductor of electricity, then taking a strip of tape and treating it in the s'ame manner as lsaid sheet of textile fabric, then drying said sheet of fabric andy said tape, then taking insulated wire and laying it on said sheet of textile fabric and superposing the said strip of tape on said wire and stitching both to said sheet, then cutting two sheets of textile fabric to form the upper and lower covering for said blanket, then laying the first named sheet with its'associated wiring and tape on the lower covering sheet, then turning the edges of said lower covering upwardly and in'- wardly so that said edges overlap the edges of the first named sheet, then superposing the upper coverin on the first named sheet -and turning its edges downwardly and inwardly so that the last named folded edges will lie substantially on the folded edges of the said lower covering, the edges of said upper covering being folded in such manner as to leave a portion of the same projecting beyond the folded edges of the lower covering and stitching theedges of all the sheets together.

2. The method of constructing an electrotherapeutic blanketwhich consists in cutting a sheet of fabric of the desired size, then treating the same in a glutinous solution to stiffen it, then treating it in a solution of magnesite to make it fire proof and a nonconductor of electricity, then taking a narrow strip of cotton tape and treating it in a glutinous solution to stid'en it, then treating it in a solution of magnesite to make it iire proof and a non-conductor of electricity, then drying said sheet and said tape, then taking insulated copper wire and laying it in parallel rows on said sheet and superposing the said tape on said wire and stitching said wire and said tape to said sheet, then cutting two sheets of fabric of a slightly larger size than the fist named sheet to form the upper and lower covering of said blanket, then laying the irstnamed sheet with its associated wiring and tape on the; lower sheet, then folding the edgesof the lower sheet upwardly and inwardly so that said edges overlap the edges of the first named sheet, then superposing the upper sheet on the first named sheet and folding its edges downwardly andlinw-ardly so that the last named folded edges will lie substantially on the folded edges of the lower sheet, the edges of said upper sheet being folded in such manner as to leave a portion of the same projecting beyond the folded edges of said lower sheet and double stitching the edges of all the sheets together.

In witness whereof, I hereunto subscribe my name this 21st day of May A. D. 1920.

JOHN T. STANTON.

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