US1119838A - Electrical heating unit. - Google Patents
Electrical heating unit. Download PDFInfo
- Publication number
- US1119838A US1119838A US75287413A US1913752874A US1119838A US 1119838 A US1119838 A US 1119838A US 75287413 A US75287413 A US 75287413A US 1913752874 A US1913752874 A US 1913752874A US 1119838 A US1119838 A US 1119838A
- Authority
- US
- United States
- Prior art keywords
- heating unit
- electrical heating
- coil
- series
- board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C3/00—Non-adjustable metal resistors made of wire or ribbon, e.g. coiled, woven or formed as grids
- H01C3/14—Non-adjustable metal resistors made of wire or ribbon, e.g. coiled, woven or formed as grids the resistive element being formed in two or more coils or loops continuously wound as a spiral, helical or toroidal winding
- H01C3/18—Non-adjustable metal resistors made of wire or ribbon, e.g. coiled, woven or formed as grids the resistive element being formed in two or more coils or loops continuously wound as a spiral, helical or toroidal winding wound on a flat or ribbon base
Definitions
- the invention consists in the construction as hereinafter set forth.
- Figure 1 is a side eleva-. tion of the unit
- Fig. 2 is a perspective view of-a port on of the unit, showing the man-.
- Fig. 3 is a cross section of Fig. 2 showing a step in the formation of the unit.
- A is a plate formed of a rigid electricallyinsulating and heat-resisting materialsuch for instance as hard asbestos board.
- resistor coils which are mounted upon the board A by providing the latter with series of perforatiori's'C so o'sitioned as to receive the successive convo utions of the coil.
- the material of which the board A is composed is substantially rigid, and it is also of a somewhat brittle nature so that the engagement of-the coil with the-perforations C is a diflicult operation.
- the coils such as B B, etc., arran edin parallel relation or otherwise upon the board, these may be connected in series or multiple by securing their opposite'ends to intermediate biniin posts E. These are preferably arrange upon the board intermediate ad acent series 0 perforations, and not only electrically connect the coils but mechanically hold them from displacement.
- the edges of the boar are preferably bound with metallic reinforcing strips F which may be of U-shaped section embracing the edges of the plates.
- the unit as formed may be inserted in any suitable construction of electrica ly heated devices, and when connected in circuit heat will be developed in all of the coils and radiated from opposite sides of the plate.
- An electrical'heating unit comprising a flat board or plate of rigid electrically-insulating and heat-resistingmaterial, havin a series of perforations'therein positioned to engage thev successive convolutions of a resistor coil, and a slot adjacent the end of and in alinement with the series of perfo rations, of a size to receive the first convolution of the coil to permit of threading the same through said series of perforations.
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Resistance Heating (AREA)
Description
F. KUHN.
ELECTRICALJIBATINQ UNIT. APPLICATION FILED MAILB, 1913.
- Patented D ec. 8,1914.
ooooooooooooo o y OOOOOOOOOOOOOO v pOOOOOOOOOOOOOOO OOOOOOOOOOOOOOO (I a??? I ZI Azf mw FRANK KUHN, or nn'raorr, MICHIGAN.
ELECTRICAL HEATING UNIT.
Specification of Letters Patent.
Patented Dec. 8, 1914.
0 Application filed March is, 1918. Serial No. 758,874.
and has particular reference to thec0nstruc'' tion of a heating unit which is adapted for use in connection with various constructions of electrically heated devices.
The invention consists in the construction as hereinafter set forth.
In the drawings: Figure 1 is a side eleva-. tion of the unit, Fig. 2 is a perspective view of-a port on of the unit, showing the man-.
ner of engaging one of the resistor coils therewith; and Fig. 3 is a cross section of Fig. 2 showing a step in the formation of the unit.
A is a plate formed of a rigid electricallyinsulating and heat-resisting materialsuch for instance as hard asbestos board.
B are resistor coils which are mounted upon the board A by providing the latter with series of perforatiori's'C so o'sitioned as to receive the successive convo utions of the coil.
As has been stated, the material of which the board A is composed is substantially rigid, and it is also of a somewhat brittle nature so that the engagement of-the coil with the-perforations C is a diflicult operation. To avoid this difliculty, I form at the end of each series of perforations C an obliquely-arranged slot D of suificient size to receive one convolution of the coil when arranged in alinement with the series of apertures. This permits the coil to be first enga d with said slot, as shown in Fig. 3 and y then turning or twisting the coil' about its axis, its end will be threaded successively through the apertures Cuntil the entire coil is in engagement with the board. Where there are a number of the coils, such as B B, etc., arran edin parallel relation or otherwise upon the board, these may be connected in series or multiple by securing their opposite'ends to intermediate biniin posts E. These are preferably arrange upon the board intermediate ad acent series 0 perforations, and not only electrically connect the coils but mechanically hold them from displacement. To stren hen the structure, the edges of the boar are preferably bound with metallic reinforcing strips F which may be of U-shaped section embracing the edges of the plates.
The unit as formed may be inserted in any suitable construction of electrica ly heated devices, and when connected in circuit heat will be developed in all of the coils and radiated from opposite sides of the plate.
What I claim as my invention is:
, An electrical'heating unit, comprising a flat board or plate of rigid electrically-insulating and heat-resistingmaterial, havin a series of perforations'therein positioned to engage thev successive convolutions of a resistor coil, and a slot adjacent the end of and in alinement with the series of perfo rations, of a size to receive the first convolution of the coil to permit of threading the same through said series of perforations.
In testimon whereof I affix my signature in presence 0 two witnesses.
v FRANK KUHN. Witnesses:
Janus P. BARRY, DELBERT CoLuNs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US75287413A US1119838A (en) | 1913-03-08 | 1913-03-08 | Electrical heating unit. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US75287413A US1119838A (en) | 1913-03-08 | 1913-03-08 | Electrical heating unit. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1119838A true US1119838A (en) | 1914-12-08 |
Family
ID=3188005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US75287413A Expired - Lifetime US1119838A (en) | 1913-03-08 | 1913-03-08 | Electrical heating unit. |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1119838A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2518807A (en) * | 1946-08-22 | 1950-08-15 | Dulrae Ltd | Electrical heating element |
| US3175939A (en) * | 1961-12-26 | 1965-03-30 | Phillips Petroleum Co | Apparatus for welding thermo-plastic forms |
| US4445024A (en) * | 1981-03-24 | 1984-04-24 | Research Technology Canberra Pty. Ltd. | Electric kiln |
-
1913
- 1913-03-08 US US75287413A patent/US1119838A/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2518807A (en) * | 1946-08-22 | 1950-08-15 | Dulrae Ltd | Electrical heating element |
| US3175939A (en) * | 1961-12-26 | 1965-03-30 | Phillips Petroleum Co | Apparatus for welding thermo-plastic forms |
| US4445024A (en) * | 1981-03-24 | 1984-04-24 | Research Technology Canberra Pty. Ltd. | Electric kiln |
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