US952385A - Electric iron. - Google Patents

Description

F. TROTT. ELEUTRIG IRON.

APPLICATION FILED JUNE 28, 1909.

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P. TROTT. ELEGTEIG IRON. APPLICATION FILED JUNE 28, 1909.

Patented Mar. 15, 1910.

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"Specification of Letters Patent. Patented Fig.1. i5, 'll 'jfitli.

, Application filed June 28; 1909. Serial No. 504,832.

To'all iuliom it may concern:

Be itknown. that I, FREDERICK Taorr, of the city of \Vinnipeg, in the Province of Manitoba, Canada, have invented certain new and usefulImprovements in Electric Irons, ofwhich the following is the specification; j

.My invention relates to electrieirons, and theobjectot' the invention is to provide an iron of this class which is simple in construction, etlicient inoperation, strong and durable, and which has its resistance coils so arranged thatithey can be readily replaced, itdamaged, at slight co'st.

It consists essentially in abody portion having aplurality of longitudinally extending channels therein, insulating materialtor the channels, independently wound resistance coils adapted to be nserted within the channels, an insulating top piece or cover having facial projections adapted to fit within the channels aforesaid andcarry contact making pieces, the parts being arranged and constructed as hereinafter more particularly described.

l llgurc l is a planvlew of the iron with the handle broken away. Fig. 2 is a side elevation of the iron. Fig. 3 is a sectional view taken in the plane denoted by the line X X, Fig. 2. Fig. t is a vertical section view taken through the iron, the section beingtaken in the plane denoted by the. line Fig. 5 is an inverted plan (l is a detailed side elevation of one of the resistance coils employed. Fig. .7 is a plan view of the body of the iron. the cover having been removed.

In the drawings like characters of reference indicate corresponding parts in each figure. I

represents the body of an iron of the ordinary form and having the usual smooth surface at 2 tor-ironing purposes. The body of the iron has in the present instance two 'longitudinnlly extending and opposing channels or, grooves El 53. said grooves having the side walls -'1-'und 5 thereof converging downi'vardly thereby giving the channels awedgeshaped cross section.

t) is the cover, which is formed from an in-' saluting materialsuch as'asbestos or 0011b position, such cover being supplied with the usual handle Tby which the iron can be lifted,

8 and 9 are two faeially projecting portions extending from the under side of the cover, such portions being designed'to pass within the channels 3 3 and having the sides thereof 10 and 11 cdnverging downwardly 111 the same manner as do the walls of the grooves 3 3.

12' are strips of mica or such like insulating material upon which a-rewonnd electrical conducting wires 13 secured at their ends at 1-1 to the strips and forming resistance coils.

\Vithin the channels 5 3 l have placed further strips of mica 15 which rest aga'n: .t; the walls and .on the bottom oi the grooves thereby completely insulating anything placed within the grooves portion of the iron.

The strips 12 carrying the resistance coils of wire are of such a length and width that they can be passed within the channels testing against the walls land 5 thereof and withtheir upper edge below the level oi: the

upper face-of the body portion 1 of the iron.

16 and 17 are Z-shaped wires firmly embedded within the material of the cover and with their upper ends extending at 16 and 17 forming contact tips.- The lower ends ofthe wires are exposed at 18 appearing at the sideslO oi the facial projections 8 and t), for a purpose hereinafter explained.

19 is a yoke-shaped conducting bar having the body portion thereof embedded within the. material oi" the rover and the ends :20 thereof extending at the inner sides 11 of the facial projections 8 and 9. j

21 and 22 are independent U-shaped conducting bars passing over the vfacial projections and with their ends firmly chi-- bedded within the material of the cover.

It is to be noticed that the bars 21 and 22 appear at one end of the facial projections from the body tonrportion 1 by means ot a centi'alset screw 23 which passes into a threaded openthere is a contact made between the outer. resistance coils and the exposed lower ends 10.0 ing 24 located in the portion j The parts Li arranged and constructed so that when resistance coils are placed within the- 18 of the wires, and also between the inner".

resistance coils and the exposed ends 20 ,013 the bar 19. lhe U-shaped bars 21 aridll are designed atthe same timetonialrecontact between the opposing coils" in the respective grooves.

inning: a po itive and a negative wire t:t1't \li!,f an electric current to be attached or ln'ou 'ht into connection with the contact this 1t; and 17', respectively, th tlow of the current is as tollo\\'s.--it passes iron] the contact tip to along the wire. to the one cud oi the resistance,coil located against ii' outer wall of the roovc I). thence along; the resistance coil to the Ushaped bar 2 where a coi'uicction made with the opnos ac rcsistaucc coil within the groove After passing through the latter coil the current flows across the \'ol c-shaped bar If) to the inner resi tance coil in the groove 53 where it passed by the U-shaped bar to th second or outer resistance coil within the groove 25 thence to the wire 17 and the contact 17. having made the toiliplrtc circuit within the iron ..-\ccording to the construction as above described it will be seen that if for any reason one ot the coils is damaged in any way, such as by burning' out, there is little diliiculty in removing, the cover and taking the daiua 'ed coil from the iron. As the coils re small a new one can be readily insertc, with little trouble and erq'iense.

That i claim as my invention is:

.1. An electric iron comprising a grooved body portion, indcpendijait resistance coils inscrtihlc within the grooves and insulated from the body portion, a cover securable to the body portion, contact. terminals secured 0 the cover, and means carried by thc cover for electricallyconnecting the coils in series, as and for the purpose specified.

2. An electric iron comprising a body portion having a plurality ot grooves therein. aplurality of rc LsL-tncc coils indepcnd ently inscrtihle within the grooves and in sulated therefrom, a cover sccurablc to the body portion, contact making pieces designed to cng e wi h two of the coils when the covcr'in *ccured to the body portion, said contact pieces having terminals appearing at the upper face of the cover, and means carried by the cover and adapted to make contact with the coils whereby they are connected in series, as and for the purpose specified.

In an electric iron, in combination a body portion ha ving longitudinally extending grooves therein. re tancc coils indcpcndcntly insertihle within the in ulated from the body portion. a cover se urablc to the body portion, a set ot' ter minals carried by the cover in contact with the coils and extending u 'rw'ardly tI'Utl'! the cover, and contact plates carried by the electrically connect the cover is applied, specified. iron, in con'il'iination, a

cover and adapted to the coils in series when as and for the purpose t. in an electric oovcs and i groove in series.

body portion having louizitinlinally extending gro ves therein. said grooves having the walls thcreot' converging downwardly. a plurality ot resistance coils indepciulently inscrtiblc within the groove said coils bcin insulated from the body portion and resting against the walls of the grooves, an insulating corcr sccurablc to the body portion, said cov r having facial projections adapted to enter the grooves, contact making pieces carried by the cover and designed to engage with two ot he coils when the cover is placed in position, said contact piccs extending to form terminals, and contact bars secured to the cov r and adapted to connect. the remainder of the coils in series when the cover is applied, as and tor the purpose specified.

F. An electric iron comprising a. body portion having longitudinally extending grooves therein, the walls of the grooves converging downwardly, a plurality of rcsistance coils independently insertihle within the grooves. insulatingstrips intcr 'ioscd between the coils and the body portion, an insulating cover having a plurality of facial pr jections adapted to pass within the grooves and between the opposing; coils, a set of wire orniing terminals, said wires making contact with two of the coils in opposite grooves. contact bars carried by the covers interconnectingthe coils within a and a contact bar carried by the cover interconnecting a pair of coils in ditl'ercnt: grooves whereby the sets of coils within the respective grooves are elcclrit ally connected in series. as and For the purpose specified.

(3. .\n electric iroir- Formed in two portions. an upper and a lower portion, insulated coils held between such portions, insulated contact plates connecting the coils in series, terminals for the coils, and means for connecting the divided portions of the iron together, as and for the purpose specitied.

7. An electric iron comprising portion of an upper insulatlng material, a metallic body portion, insulating coils connected together in series and located between the said portions, contact plates carried by the upper portion and designed to connect the coils when such upper portion is connected to the lower portion of the iron, and means For connecting the upper and lower portions together. as and For the purpose specified.

Signed at Winnipeg, in the Province of Manitoba, this 19th day of June 190$).

FREDERICK TRO'IT. in the presence of (-1-. S. Roxnunon, M. A. SOMIGHVHJA'I.

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