US607093A - Electrically-heated - Google Patents

Electrically-heated Download PDF

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Publication number
US607093A
US607093A US607093DA US607093A US 607093 A US607093 A US 607093A US 607093D A US607093D A US 607093DA US 607093 A US607093 A US 607093A
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United States
Prior art keywords
shell
heads
shaft
electrically
heated
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Expired - Lifetime
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English (en)
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/14—Tools, e.g. nozzles, rollers, calenders
    • H05B6/145—Heated rollers

Definitions

  • My invention relates to electrically-heated rolls that may be used for drying fabrics or paper for calendering and for other kindred purposes.
  • the object of the invention is to apply to the heating of such rolls the familiar principle of electrical induction.
  • I use a hollow roll having an internal shaft which is encircled by an annular core wound with insulated conductor.
  • a secondary circuit through and about the annularcore is' madeto consist o'f'the cylindrical wall, the heads, and the shaftof the hollowroll.
  • Figure 1 is a side view of an electricallyheated roll that is constructed in accordance with those principles.
  • Fig. 2 is an end view
  • Fig. 3 is a longitudinal axial section of Fig. 1
  • Fig. 4 is a crosssection on line 0050 of Fig. 1.
  • Fig. 5 is a detail.
  • the roll that is depicted in the views has a hollow cylindrical shell 1, which isformed of iron or of other metal of low electrical conductivity, is thickest at the middle, and diminishes in thickness gradually toward the ends of the shell, as shown in Figs. 3, at, and 5.
  • Fig. 5, being an enlarged detail from Fig. 3, is a longitudinal section through the wall of that shell.
  • the numerals 2 and 3 denote two parallel disks of copper or of other highly-conductive material, which constitute the heads of shell 1 and are united therewith by brazing or soldering.
  • a large shaft 1 which is made of copper or of other highly-conductive material and is integrally or closely united with the heads 2 and 3.
  • shaft 4E and through heads 2 and 3 are driven the gudgeon-like bearingpieces 5 and 6, whereby the roll is mounted for rotation in suitable supports.
  • annular space 14 that is included between the shell 1, the heads 2 and 3, and the shaft 4, is an annular laminated core 7, which is 'wound longitudinally in and out with an insulated copper wire 8.
  • an annular laminated core 7 In the same annular space and next to shell 1 may be placed any necessary or convenient packing 13 of asbestos or other material.
  • myinvention-- 1 A hollow cylindrical shell of iron, or of other material that has low electrical conductivity, two cylinder-heads of copper, or of other highly-conductive material, united with said hollow shell, and a shaft of copper,'or of other hi ghly-cond uctive material, uniting said too 4 cylinder-heads, in combination with an an nular core, formed of magnetic material, encircling said shaft, and wound With insulated conductor, all adapted to be rotated about a common axis, substantially as and for the purpose specified.
  • a cylindrical shell formed of material that has low electrical conductivity
  • two cylinder-l1eads formed of highly-conductive ma terial, united electrically with that shell
  • a shaft formed of highly-conductive inate riaLunitingsaid cylinder-heads,and provided with terminal bearing-pieces, in combination with an annular core, formed of magnetic material, Wound with insulated conductor, and encircling said shaft, all arranged symmetrically about a common axis of rotation, substantially as and for the purpose specified.
  • a hollow shell formed of iron, or of other material of low electrical conductivity, and having;- its wall of predetermined cross-seetional area, iucreasin g toward the middle, and diminishing toward the ends of said shell, two cylindenheads, formed of highly-conductive material, and electrically united with said.
  • a hollow cylindrical shell formed of material that has low electrical conductivity, two cylinder-heads that are formed of eoruluciive material, and are united with said shell, a magnetic core,whichis contained in said shell, and is Wound with insulated conductor, in combination with a shaft, that is formed of conductive material, uniting said cylindcu heads and is provided with terminal bearingpieces, and With rotary current-collectors, for supplying current to said insulated conductor (luring rotation, substantially as and for the purpose specified.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Induction Heating (AREA)
US607093D Electrically-heated Expired - Lifetime US607093A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE108777T

Publications (1)

Publication Number Publication Date
US607093A true US607093A (en) 1898-07-12

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ID=5651479

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US607093D Expired - Lifetime US607093A (en) Electrically-heated

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DE (1) DE108777C (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2416572A (en) * 1944-05-11 1947-02-25 Cordova Reyes L De Windshield wiper and defroster
US2541416A (en) * 1947-07-26 1951-02-13 Eastman Kodak Co Heated drying roller
US3265851A (en) * 1962-11-30 1966-08-09 Charles F Schroeder Electromagnetic transformer unit
US3307008A (en) * 1962-11-30 1967-02-28 Charles F Schroeder Electromagnetic heating unit
US3412229A (en) * 1966-10-20 1968-11-19 Cameron Brown Capital Corp Electric heating means
US3530499A (en) * 1969-09-29 1970-09-22 Charles F Schroeder Electrically heated appliance unit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19854034A1 (de) * 1998-11-16 2000-05-18 Walzen Irle Gmbh Induktionsheizung für Thermowalzen

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2416572A (en) * 1944-05-11 1947-02-25 Cordova Reyes L De Windshield wiper and defroster
US2541416A (en) * 1947-07-26 1951-02-13 Eastman Kodak Co Heated drying roller
US3265851A (en) * 1962-11-30 1966-08-09 Charles F Schroeder Electromagnetic transformer unit
US3307008A (en) * 1962-11-30 1967-02-28 Charles F Schroeder Electromagnetic heating unit
US3307009A (en) * 1962-11-30 1967-02-28 Charles F Schroeder Electromagnetic heating unit
US3307007A (en) * 1962-11-30 1967-02-28 Charles F Schroeder Electromagnetic heating unit
US3440384A (en) * 1962-11-30 1969-04-22 Charles F Schroeder Electromagnetic unit
US3412229A (en) * 1966-10-20 1968-11-19 Cameron Brown Capital Corp Electric heating means
US3530499A (en) * 1969-09-29 1970-09-22 Charles F Schroeder Electrically heated appliance unit

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Publication number Publication date
DE108777C (de)

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