US1039120A - Electric sad-iron. - Google Patents

Description

L. E. GRUBBS;

ELECTRIC SAD IRON.

APPLICATION PEI-12B IAB. 30, 1911.

1,039,120. Patented Sept. 24, 1912.

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L.. B. GBUBBS, nnnormc SAD men, "Ammonia! Hum nxj so, 1911.'

Patnted Sept. 24,1912.

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Lewis LKUBBS, E LOGANSPORT, INDIANA.

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To 0:32 whom it may concern p Be it known that I, LEWIS E. GRUB'BS, a citizen of the United States of America, and

resident or Logansport, county of. Cass,

State oi lndiana, have invented certain new and usetul improvements in Electric Sadlrons, oi which the following 1s specifica- This invention relates to certain new and useful improvements in electric sad irons of class in which coils are em lo ed and it a n I a has rorios cnyects among others to provide simplified and improved term. of irony of this chair havingprovision for obviating the heretofore employed-in connection with a destructive feature of coils such as core of some sort made of brass, iron, mica or the like. By employing a coil without a core I the destructive features of other coils caused by contraction and expansion.

By lacingthe coil in the iron without a core, it is left with plenty of room for contraction and expansion without injuring the coil. Bv my particular disposition of the coil. in the iron body, I obtain a more even distribution of the heat. The

- coilis so disposed that the iron derives the heat from'the bottom and two sides of the coil, covering an area. of at least threefourths of the same, thereby adding to the eiiiciency of the iron.

1 sm ey a heatingelement composed of coil 0 resistance wire installed in a plu rality elf oarategrooves in the body of the iron loea in such positions as to distribute an act of heat to all parts of the sent e iron. This resistance coil is so constructed as to require no insulation between the individual branches thereof. The coil is fastened to the rear part of tie body of the iron in such a manner cover can be readily removed cl without interference in any the working parts of the heating c. .i-LH connection with an iron of this consume on, I employ a plug having tapering sockets for cooperation with tapering terminals on the body-of the iron whereby l obtain permanent and firm contact at all.

. y WHERE C Hit? *2 times. As the connections become worn, the

Specification of Letters lfatmt. Patented Sept. 24,1912. Application filed March 30, 1911.- Serial No. 617,852.

tapering efi'ect in the plug adjusts itseltt' automatically to a like tapering efi'ect on the terminals so as to keep a tight connection. I sometimes provide the body of the iron with a guard for the terminals.

I aim further at other improvements in the details of construction whereby the manufacture of the device is cheapened and facilitated and better results obtained with less liability ofinjury or derangement of any of the parts.

Other objects and advantages of the invention will hereinafter appear and the novel features thereof will be oarticularlv pointedout in the appended claims.

The invention is clearly illustrateu in the accompanying drawings, which, with the numerals of reference marked thereon, form 'a part of this specification, and in which Figure 1 is a perspective view of my improved iron. Fig. 2 is a top plan with the cover and the intermediate insulation removed, the securing means or screws being shown in section. Fig. 8 is a vertical section through the entire iron with the plug attached, the section being taken as on the line 33 of Fig. 2. Fig. 4. is a vertical cross section as on the line 44: of Fig. 2. Fig. 5 is an elevation of the plug, Fig. 6 is a detail on a smaller scale, showing the iron as provided. with a guard for the terminalson the body thereof.

Like numerals of reference indicate like parts throughout the different views.

Referring to the drawings, 1 is the body of the iron'and 2 the cover or top portion thereof. The body is formed with chambers or channels 3, 4-, 5, 6 and 7. The channels 4:, 5 and 6 extend substantially lengthwise of the body of the iron, the outside chambers 3 and 5 being inclined from the heel toward the toe of the iron, while the chamber '7 connects the rear ends of the said chambers 3 and 6, all as seen best in Fig. 2. Within these chambers or 'hanr" is disposed a heating element etsisti. preferably of a coil 8 of resistance wire, preferably in one continuous element or coil, the terminals ofwhich are disposed in the rear ends of the chambers or channels 4 and 5, as

seen best in Fig; 2. These terminals, of which one. isdesignated by the reference numeral 9 in Fig. 3, extend upward into achamber or cavity 10 in the top 2 of the iron, as seen.

These terminals are connected by suitable means, as screws 11 with the plug terminals terial, as asbestos, interposed between the top of the body 1 and the adjacent face of the top 2, being preferably seated in a. re

, cess 17 in the under face-offsaid top 2, as

- cured to the body'in any suitable manner, as,

seen clearly in Fig. 4.- I r .18 is mica or analogous material lining the chambers 3, 4, 5, 6 and 7, as seen in Figs.

2 and 4, for an obviouspurpose.

- 19 is a handle of any suitable construction mounted in the holder 20 secured to the top 2 of the iron in any suitable way, as by the screws 21, see Figs. 1 and4.

The top 2 of the iron is removably se-[ for instance, by "screws 22. It will be noted( that by the construction shown, the topmay be readily removed at anytime by removing the screws and turning the top to one side without in any wise interferlng with the heating element or coil.

23 is the plug. It is composed, preferably, of a single-piece of fiber having a stud 24,

through which pass the wires 25 and 26 froma suitable source of supply of electric current, these wires extending through; the stud and out through openings 27 therein, as seen best in Fig. 3, and within openings 28 in the plug and into the tapered metallic sockets 29 within openings in the opposite,

face of the plug, as seen in Figs. 3 and 5, where the ends of said wires are fastened in'somesuitable manner, as, for instance, by the screws 30, see Figs. 3 and 5, the heads of the said screws being seated in openings 31 in the side of the plug where they are out of the way, yet readlly access1- ble when 1t is desired to disconnect the I 32 is a wire coil around' the portion of the wires 25 and 26 adjacent the stud24, the one end of the coil being connected wlth the stud and the other carried by the collar 33 in any well known way.

In use, the tapered sockets of the plug are engaged with the tapered terminals 12, as clearly shown in. Fig.3,and by this means there will always be a tight connection, and provision is made for wear.

34 secured to the handle support 20 in any suitable way, as by a screw or. the like 35, as seen in Fig. 6. This guard extends over the ends of the'terminals 12 andprotect the same against breakage or injury and into this guard the plug is placed when it is desired to make connection and adapt the iron for use.

Upon reference to Fig. 2, it W-lll be noted that the channels, 3,4, 5, and 6 are so dis-- posed as to leave Wedge-shaped portions 36 37 and 38 between the said grooves extending lengthwise of the body. These separate wedge-shapedlportions retain the heat and distribute it to all surfaces of the iron eqrally.

y reason of theparticular construdtion of the plug and the attachment of the wires 2 and 26 thereto, allof the strain is t ken off of the terminals of the iron and pl upon the plug itself.

I Modifications in detail may be resorted to without departing from the spirit of the invention or 'sacrlficing any of its .van-

tages. v 1

' What is claimed as new is In some instances 1 may employ a lguard.

1. An electric 'iron comprising a body having separate grooves forming separate wedge-shaped portions'bet'ween said grooves and a groove extending across theheel of .the iron and connectlngthe outslde grooves,

and a coreless heating element composed of one continuous coil of resistance wlre d1s 1 posed within the longitudinal and transverse grooves.

. 2. An electric iron having afblody formed .with longitudinally extending grooves and a transverse groove at the heel connecting the outermost of sa'1d'long1tud1nal grooves,

a coreless heating element composed of a continuous coil of resistance-wire disposed p I u withm said grooves, a top to the iron havmg a cavity into which the ends of said CO1 extend for connection with; terminals, and terminals on said top with whiehsaid ends are connected.

3. An electric iron comprising a body having outer and intermediate channels extending lengthwise'fo f saidbo'dy, the' outer channels being inclined from the heel toward the toe, andfthe intermediate channel.

connecting the rear ends of said outer channels and a coreless heating-element in one continuous unit disposed within said channels with the terminals thereof'disposed in therear ends of two of the longitudinally disposed channels.

4. An electric sad iron comprising a body having inclined side channels, a connecting cross channel, and intermediate substantially parallel channels communicating with said side channels, a-coil resistance wire formin a coreless heating element disposed in said side, cross and intermediate channels, the

terminals '01": said wire being extended Signed by me at Loganspol t, Ind, this through the body, said body havlng acham- 27th day of March, 1911. ber to receive the securing means of said terminals, a removable cover, and a non- GRUBBS' halt conducting material interposed between Witnesses: said 0.0"61 and the upper Wall of said body JOHN L. MOMAKEN,

and overlying said heating element. BYRON B. GORDON.

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