GB747084A - Improvements in and relating to electrically heated tunnel kilns - Google Patents

Improvements in and relating to electrically heated tunnel kilns

Info

Publication number
GB747084A
GB747084A GB29088/54A GB2908854A GB747084A GB 747084 A GB747084 A GB 747084A GB 29088/54 A GB29088/54 A GB 29088/54A GB 2908854 A GB2908854 A GB 2908854A GB 747084 A GB747084 A GB 747084A
Authority
GB
United Kingdom
Prior art keywords
rods
ribs
heating rods
niches
oct
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
Application number
GB29088/54A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BBC Brown Boveri AG Germany
BBC Brown Boveri France SA
Original Assignee
Brown Boveri und Cie AG Germany
BBC Brown Boveri France SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Brown Boveri und Cie AG Germany, BBC Brown Boveri France SA filed Critical Brown Boveri und Cie AG Germany
Publication of GB747084A publication Critical patent/GB747084A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/0014—Devices wherein the heating current flows through particular resistances

Abstract

747,084. Electric tunnel furnaces. AKT.- GES. BROWN, BOVERI, & CIE. Oct. 8, 1954 [Oct. 8, 1953], No. 29088/54. Class 39(3). In a tunnel furnace in which vertical resistor heating rods 7 are placed in niches in the inner side walls of the furnace with vertical ribs of the masonry wall between the rods, alternate ribs 5 project a smaller distance towards the work 9 than the intermediate ribs 6, so that when alternate heating rods 7 are removed, the work is still wholly irradiated by direct radiant heat from the rods 7. The innermost parts of the niches is given a double parabolic shape in order to minimise direct reflection of heat back on to the heating rods 7, which are metallic or ceramic. The masonry side walls support a brickwork roof.
GB29088/54A 1953-10-08 1954-10-08 Improvements in and relating to electrically heated tunnel kilns Expired GB747084A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH747084X 1953-10-08

Publications (1)

Publication Number Publication Date
GB747084A true GB747084A (en) 1956-03-28

Family

ID=4533582

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29088/54A Expired GB747084A (en) 1953-10-08 1954-10-08 Improvements in and relating to electrically heated tunnel kilns

Country Status (1)

Country Link
GB (1) GB747084A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3075064A (en) * 1958-10-08 1963-01-22 Bondonio Ernesto Means for heating by reflected infra-red rays

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3075064A (en) * 1958-10-08 1963-01-22 Bondonio Ernesto Means for heating by reflected infra-red rays

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