GB498411A - Improvements in or relating to metal boxes or cases for housing electrical apparatusand to cable or conduit connections for use therewith - Google Patents

Improvements in or relating to metal boxes or cases for housing electrical apparatusand to cable or conduit connections for use therewith

Info

Publication number
GB498411A
GB498411A GB3217038A GB3217038A GB498411A GB 498411 A GB498411 A GB 498411A GB 3217038 A GB3217038 A GB 3217038A GB 3217038 A GB3217038 A GB 3217038A GB 498411 A GB498411 A GB 498411A
Authority
GB
United Kingdom
Prior art keywords
cable
clamp
apparatusand
relating
cases
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
GB3217038A
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.)
JA Crabtree and Co Ltd
Original Assignee
JA Crabtree and 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 JA Crabtree and Co Ltd filed Critical JA Crabtree and Co Ltd
Priority to GB3217038A priority Critical patent/GB498411A/en
Publication of GB498411A publication Critical patent/GB498411A/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
    • H02G3/06—Joints for connecting lengths of protective tubing or channels, to each other or to casings, e.g. to distribution boxes; Ensuring electrical continuity in the joint
    • H02G3/0616—Joints for connecting tubing to casing
    • H02G3/0625—Joints for connecting tubing to casing with means for preventing disengagement of conductors
    • H02G3/0683—Joints for connecting tubing to casing with means for preventing disengagement of conductors with bolts operating in a direction transverse to the conductors

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Insertion, Bundling And Securing Of Wires For Electric Apparatuses (AREA)
  • Connection Or Junction Boxes (AREA)

Abstract

498,411. Junction boxes. CRABTREE & CO., Ltd., J. A., McLOUGHLIN, H. F., and HARRISON, B. G. July 1, 1937, No. 32170/38. Divided out of 497,857. [Class 38 (i)] A clamp, for securing a conduit or cable entered through a side-entry opening in a metal box for housing electrical apparatus, is provided with a lug or foot whereby it can be secured to the floor of the box. As shown in Fig. 1 the clamp is adapted to receive a conduit l inward movement of which is prevented by the screw j which secures the lug i to the base of the box. The clamp may be internally threaded or may be split as shown. When a cable is to be secured the clamp takes the form shown in Fig. 3 a boss o and flange p co-operating with the entry-hole and the cable being gripped by a saddle-piece s held down by screws t.
GB3217038A 1937-07-01 1937-07-01 Improvements in or relating to metal boxes or cases for housing electrical apparatusand to cable or conduit connections for use therewith Expired GB498411A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3217038A GB498411A (en) 1937-07-01 1937-07-01 Improvements in or relating to metal boxes or cases for housing electrical apparatusand to cable or conduit connections for use therewith

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3217038A GB498411A (en) 1937-07-01 1937-07-01 Improvements in or relating to metal boxes or cases for housing electrical apparatusand to cable or conduit connections for use therewith

Publications (1)

Publication Number Publication Date
GB498411A true GB498411A (en) 1939-01-02

Family

ID=10334385

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3217038A Expired GB498411A (en) 1937-07-01 1937-07-01 Improvements in or relating to metal boxes or cases for housing electrical apparatusand to cable or conduit connections for use therewith

Country Status (1)

Country Link
GB (1) GB498411A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4288655A (en) * 1979-10-04 1981-09-08 Square D Company Cable lock assembly for outlet box
US5727820A (en) * 1996-08-07 1998-03-17 Thompson; David M. Side-mounted "L" shaped flange

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4288655A (en) * 1979-10-04 1981-09-08 Square D Company Cable lock assembly for outlet box
US5727820A (en) * 1996-08-07 1998-03-17 Thompson; David M. Side-mounted "L" shaped flange

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