US1514950A

US1514950A - Electrical laundry iron

Info

Publication number: US1514950A
Application number: US658693A
Authority: US
Inventors: Brown Michael
Original assignee: Individual
Current assignee: Individual
Priority date: 1923-08-22
Filing date: 1923-08-22
Publication date: 1924-11-11
Anticipated expiration: 1941-11-11

Description

' M. BROWN ELECTRICAL LAUNDRY IRON Filed Aug. 22. 1923 2 Sheets-Sheet 1 1 9 W M's i e, SI

- T1 5-. 2 Z3 Z2 I! l 7 I [IN all, Y as L I T 5 4 INVENTOR Y 26 27 [V'zbfi a el Brown T1 9:3 0. Mi? v ATTORNEY NUV. v

M. BROWN ELECTRICAL LAUNDRY .IRON

Filed Aug. 22. 19 3 2 Shuts-Sheet 2 INVENTOR I Michael Brown ATTORNEY Patented Nov. 11,1924.

UNITED STATES PATENT OFFICE.

Application filed August 28, 1823. Serial No. 658,693

To all whom it may concern:

Be it known that I, MICHAEL BROWN, a citizen of the United States, residin at Brooklyn, in the county of Kings and tate of New York, have invented certain new and useful provements in Electrical Laundry Irons, of which the following is aspecification, reference being had therein to the accompanying drawing.

My invention relates to improvements in laundry irons and more particularly has reference to an electrical laundering hand iron, and is illustrated .in the accompanydrawings as what is known as a two point iron. V

In the accompanying drawings, I have illustrated in Fig. 1 in side elevation, a suitable form of electrical hand iron embodyan application of my invention. Fig. 2 1s a longitudinal vertical section of the same. Fig. 3 is a plan view of the heating element. Fig. 4 is looking from right to left thereat, Fi 5 are detailed views of the mica or ot er suitable insulators or bridge members shown in Fig. 4; Fig. 6 is a plan view of the pressure plate with the electrical connectors in position thereon; Fig. 7 is a view of the bottom of the same, and Fig. 8 is an enlarged longitudinal sectional view of the back part of the iron showing the electrical connections.

6 indicates the base ofthe iron, 7 the heating element, 8 the pressure plate, 9 the outer shell, 10-10 the handle brackets and 11 the handle of wood or other suitable heat insulating material provided'with a longitudinal hole through which may be passed the bolt 12 provided with a nut 13 by which the brackets 10-10' are secured within the ends of the, handle, the inner ends of said brackets bein provided with holes through which the threaded standard 14, secured in b the base 6, projects as shown, the nut 15 serving to bind said bracket ends uponthe pressure plate 8 as shown and the finished threaded cap or nut 16 servin tosecure the shell in place after the peribrated disc 17 has been placed in position, said perforated disc serving as a. name-plate if desired.

The heating element consists primarily of two semi-elliptical sheets of mica or other suitable highly insulating material such as 1819, the edges being notched or cut away as indicated to provided for the securing of suitable electrical resistance such astudinal notch 28 at nichrome' ribbon or wire which is first passed through one hole such as 20 being wound as shown until reaching the end when it passes through the slit 21 and is wound back again until it reaches the notch 22 when it passes direct to the notch 23 and continues to the notch 24 at the opposite end, passing across to the other mica sheet and notch 25, the convolutions or windings continuing rightwardly to the notch 26 then across to the notch 27 and continuing to the longithe end, then back and from the notch29 out through the hole 30. Upon opposite sides or faces of this pair of wound semi-elliptical mica sheets are secured a pair of full elliptical mica sheets by any suitable means such as the eyelets 31, said sheets having a central hole such as 32 for the passage of the standard 14.

These wound andsecured mica members are then secured within an outer tray or cover 7 having holes which register with the holes 2030 through the mica sheets and this outer cover or tray is provided with two turned up lips or lugs such as 33, 34, the free ends of the winding through. 35 indicates a sheet mica bridge adapted to be secured at one side of the lugs, the depending

portions

36, 37 entering slightly into the openings made by the li s or

lugs

33, 34 so that when the ends 0 the windings pass upwardly they are sure to avoid contact with anything except mica. At the opposite side of said lugs is also secured another similar mica bridge piece 38 and the holes such as 39 in the mica bridge pieces are smaller than the holes in the

lugs

33, 34. Eylets may also be used to secure the mica bridge members upon the

lugs

33, 34 and it will be understood that the eyelets and the holes in the mica eing considerably smaller in diameter than the holes in the lugs will avoid all contact with the lugs except by the mica and the depending

portions

36, 37 of the mica entering the openings left by the lugs in the cover 7 will serve to centre .and keep cenw tered the holes referred to, so that all liability of metallic Contact, ground and-leak is avoided.

After the heating element has been assembled as described, connecting posts 40, 41 having threaded holes are secured by suitable screws such as 42 through the lugs and mica bridge piece as shown, thereby completing the heating element which is passing upwardly therethen placed upon the base member, the depending peripheral flange thereof serving to seal by contact with the base member the mica and heating elements therein. The pressure plate 8, preferably made of cast iron,

is also provided with a recess into which bridge plate 46 another insulating washer such as 47 being secured beneath the same and finally a washer such as 48, the combination being suitably riveted as indicated at 49, the bridge plate 46 also being drilled to provide passage for screws such as 50 by which it is secured to the pressure plate 8 as shown but not before suitable washers of mica or other suitable insulating material have been placed between the pressure plate 8 and the lower washer 48. The free ends of the winding of the heating element being secured beneath the threaded ends of the contact pins 40, 41 allows the current to pass up therethrough and into the tubular plugs 43 and upon said tubular plugs are preferably secured rubber sleeves such as 51 of reduced diameter at the top to allow for passage through the shell 9 of the iron.

52 indicates a housing bracket suitably secured to the bracket 10? as shown, and serves as the usual form of guard or hous ing within which the plugs 43 project for connecting the iron to the flexible cord. In assembling the iron, the brackets 1010' are first introduced through the shell, after which they may be secured in' the handle as shown, and afterthe shell has been placed in position over the pressure plate, the nut 15 is turned down over the larger diameter of threads of the standard 14 after which the washer or name-plate is passed over the projecting end of the standard and the fin- I ishing cap nut 16 may be then turned down,

completing the lock up of the iron.

Of course it will be understood that various modifications may be made in the construction and arrangement of parts without departing from the spirit of the invention as claimed.

I claim:

1. In an iron of the class described, a base member, a heating element, a pressure plate, an outer shell, a handle therefor, said handle having free ends adapted to be removably seculed within said shell.

2. In an iron of the class described, a base member, a heating element, a pressure plate, an outer shell, a handle therefor, said heating element comprising a housing plate, electrical resistance therein upon an' insulator, and insulators at opposite sides thereof, all within said plate.

, 3. In an iron of the c ass described, a base member, aheating element, a pressure plate, an outer shell, a handle therefor, said heating element comprisinga housing plate, and a removable electrical resistance medium therein. I

4. In an iron of the class described, a base member, a heating element,'a pressure plate, an outer shell, a handle therefor, said heating element comprising a housing plate, electrical resistance therein, said resistance wound across parallel members extending the entire length of said iron.

5. In an iron of the class described, a

base member, a heating element, a pressure plate, an outer shell, a handle therefor, said heating element having a pair of substantially parallel insulators upon which resistance material is wound, said winding starting at one contact terminal and extending by convolutions to one point pf the iron and back again to the opposite point thereof, then across and along the other insulator to said first mentioned point and thence to the other of said terminals.

- 6. In an iron of the class described, a base member, a heating element, a pressure plate, an outer shell, a handle therefor, said heating element having electrical terminals, a non-grounding fitting adapted to engage the same and to be secured to without making electrical contact with said pressure member, and means for insulating said fitting from said shell.

7.In an iron of the class described, a base member, a heating element, a pressure plate, an outer shell, a handle therefor, a standard from said base member adapted to pass through said heating element, pressure member, and shell, and means for securing said parts together by said standard.

8. In'an iron of the class described, a base member, a heating element, a pressure plate, an outer shell, a handle therefor, a standard from said base member adapted to pass through said heating element, pressure member, shell, and handle, and means for securing said parts, together by said standard.

9. In an iron of the class described, a base member, a heating element, a pressure plate, an outer shell, a handle therefor, a

standard from said base member adapted to of said standard upon *said pressure plate. to be secured by means of said standard 10. In an iron of the class described, a upon said pressure plate by means of a nut, base member, a heating. element, a presand a second nut for securing said shell sure plate, an outer shell, a handle thereupon said base b said standard. 5 for, a standard from said base member In testimony w ereof I hereunto aflix my 1 adapted to pass through said heating elesignature. ment, pressure member, and shell, and means for securin said parts together by MICHAEL BROWN. said standard, said handle having remov- Witnew: able parts and having free ends adapted FRANK GARQIA.