GB380535A - Improvements applicable to electric junction boxes and to other boxes, covers and other enclosures intended for perforation - Google Patents

Improvements applicable to electric junction boxes and to other boxes, covers and other enclosures intended for perforation

Info

Publication number
GB380535A
GB380535A GB1929631A GB1929631A GB380535A GB 380535 A GB380535 A GB 380535A GB 1929631 A GB1929631 A GB 1929631A GB 1929631 A GB1929631 A GB 1929631A GB 380535 A GB380535 A GB 380535A
Authority
GB
United Kingdom
Prior art keywords
boxes
perforation
covers
electric junction
improvements applicable
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
GB1929631A
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.)
WT Henleys Telegraph Works Co Ltd
Original Assignee
WT Henleys Telegraph Works Co Ltd
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 WT Henleys Telegraph Works Co Ltd filed Critical WT Henleys Telegraph Works Co Ltd
Priority to GB1929631A priority Critical patent/GB380535A/en
Publication of GB380535A publication Critical patent/GB380535A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/08—Distribution boxes; Connection or junction boxes
    • H02G3/081—Bases, casings or covers
    • H02G3/083—Inlets
    • H02G3/085—Inlets including knock-out or tear-out sections

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)

Abstract

380,535. Switch boxes. HENLEY'S TELEGRAPH WORKS CO., Ltd., W. T., 11, Holborn Viaduct, London, and NICHOLS, W. H., Garthowen, Amersham-on - Hill, Buckinghamshire. July 4, 1931, No. 19296. [Class 38 (v).] In a junction box or other enclosure 2 having a thin diaphragm 5 formed by recessing the wall from both sides 3, 4 so that an inlet opening can be formed by breaking away the diaphragm, the recesses 3, 4 are made of different sizes, so that the fracture forms a bevelled edge. The shape of the recesses may be different, e.g., one may be semicircular and the other semihexagonal.
GB1929631A 1931-07-04 1931-07-04 Improvements applicable to electric junction boxes and to other boxes, covers and other enclosures intended for perforation Expired GB380535A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1929631A GB380535A (en) 1931-07-04 1931-07-04 Improvements applicable to electric junction boxes and to other boxes, covers and other enclosures intended for perforation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1929631A GB380535A (en) 1931-07-04 1931-07-04 Improvements applicable to electric junction boxes and to other boxes, covers and other enclosures intended for perforation

Publications (1)

Publication Number Publication Date
GB380535A true GB380535A (en) 1932-09-22

Family

ID=10127030

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1929631A Expired GB380535A (en) 1931-07-04 1931-07-04 Improvements applicable to electric junction boxes and to other boxes, covers and other enclosures intended for perforation

Country Status (1)

Country Link
GB (1) GB380535A (en)

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