GB389253A - Improvements in electric insulator pins - Google Patents

Improvements in electric insulator pins

Info

Publication number
GB389253A
GB389253A GB411432A GB411432A GB389253A GB 389253 A GB389253 A GB 389253A GB 411432 A GB411432 A GB 411432A GB 411432 A GB411432 A GB 411432A GB 389253 A GB389253 A GB 389253A
Authority
GB
United Kingdom
Prior art keywords
pin
insulator
shanks
bent
cavity
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
GB411432A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB411432A priority Critical patent/GB389253A/en
Publication of GB389253A publication Critical patent/GB389253A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/20—Pin insulators

Landscapes

  • Insulators (AREA)

Abstract

389,253. Insulator pins. ROST, H.,- 170, Calle Patzcuara, Mexico City. Feb. 11, 1932, No. 4114. [Class 36.] A resilient pin for attaching an insulator to a cross arm &c. is made from a steel strip which is bent to form two upright shanks connected together at their ends by horizontal members, the shanks being screw threaded near their upper ends for engagement with a screw-threaded cavity of the insulator and being of such width that their edges do not touch when the pin is inserted within the insulator. The thread on the pin is preferably of slightly greater diameter than that of the insulator cavity so that the pin engages the insulator under pressure. To increase the resiliency of the pin the shanks may taper in width or thickness away from the base of the pin. Fig. 1 shows a pin formed from a steel strip 1, bent to.provide a base 9 having upwardly extending shanks 3 which are provided near their upper ends with screw threads 4. The extremities 5 of the shanks are of reduced width and are bent inwardly and soldered together to form the top 7 of the pin. An aperture 10, through which a fixing bolt may be passed, is formed in the base 9. In a modified construction, the top of the pin is formed by a washer which is soldered across upright extremities of the shanks 3. In another construction, Figs. 3 and 4, the strip 1 is bent to form a top 3 having depending shanks 4, the lower extremities of which are bent inwardly, twisted sidewise and soldered together with their edges abutting to form a base 8 for the pin. Fig. 8 shows a pin modified for use with an insulator having a cavity of narrow bore, in which the upper extremities of the shanks are laid side by side and soldered or spot welded together. Such a pin may be used for supporting insulators of larger bore by interposing between the pin and the insulator cavity a longitudinally split tubular adaptor, preferably of annealed aluminium, which is threaded internally to receive the pin and externally to fit the bore of the insulator.
GB411432A 1932-02-11 1932-02-11 Improvements in electric insulator pins Expired GB389253A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB411432A GB389253A (en) 1932-02-11 1932-02-11 Improvements in electric insulator pins

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB411432A GB389253A (en) 1932-02-11 1932-02-11 Improvements in electric insulator pins

Publications (1)

Publication Number Publication Date
GB389253A true GB389253A (en) 1933-03-16

Family

ID=9771033

Family Applications (1)

Application Number Title Priority Date Filing Date
GB411432A Expired GB389253A (en) 1932-02-11 1932-02-11 Improvements in electric insulator pins

Country Status (1)

Country Link
GB (1) GB389253A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3135999A (en) * 1960-11-23 1964-06-09 Armstrong & White Molding apparatus for grinding wheels
CN101906895A (en) * 2010-07-23 2010-12-08 北京玻钢院复合材料有限公司 Composite electrical cross arm and design method of structure thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3135999A (en) * 1960-11-23 1964-06-09 Armstrong & White Molding apparatus for grinding wheels
CN101906895A (en) * 2010-07-23 2010-12-08 北京玻钢院复合材料有限公司 Composite electrical cross arm and design method of structure thereof
CN101906895B (en) * 2010-07-23 2012-04-25 北京玻钢院复合材料有限公司 Composite electrical cross arm and design method of structure thereof

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