US775986A - Insulator. - Google Patents

Insulator. Download PDF

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Publication number
US775986A
US775986A US18024603A US1903180246A US775986A US 775986 A US775986 A US 775986A US 18024603 A US18024603 A US 18024603A US 1903180246 A US1903180246 A US 1903180246A US 775986 A US775986 A US 775986A
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United States
Prior art keywords
insulator
wire
members
paraflin
massachusetts
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Expired - Lifetime
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US18024603A
Inventor
Samuel Oakman
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LUTHER A WRIGHT
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LUTHER A WRIGHT
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Application filed by LUTHER A WRIGHT filed Critical LUTHER A WRIGHT
Priority to US18024603A priority Critical patent/US775986A/en
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Publication of US775986A publication Critical patent/US775986A/en
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    • 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
    • H01B17/42—Means for obtaining improved distribution of voltage; Protection against arc discharges

Definitions

  • My invention relates to that class of insulators that are used for insulating suspended wires carrying electric currents; and it consists in the peculiar arrangement and shape of the members of which it is composed, the object being to secure a better insulation.
  • Figure 1 is an elevation of one of my insulators.
  • Fig. 2 is a vertical section of the same.
  • Fig. 3 is a plan of the same.
  • My insulator may be attached to the crossarm or any structure in the usual manner-- that is, by a pin and screw socket S or by any suitable means. It should be so far above its supporting structure that the under or interior surface H of the insulator shall be readily accessible to the hand, so that the caretaker may without trouble renew the insulating coating of paraflin or other substance that may he required.
  • the Wire-holding members of the insulator consist of the members E and E, which overhangthe lower part of the wire recess C, and thus form wedge-like lateral wire-receptacles D and D, so that when the wire is resting upon the insulator it can be drawn or will of its own accord enter one of the side receptaales, and thus be held automatically, although as a matter of additional security a tie-wire may be used, said tie-wire passingaround the lower part of one of the members E or E.
  • the protecting-shield member B surrounds the socket-piece S and with it forms the annular chamber H.
  • the shield member connects with the body of the insulator and extends downward and outward. Its lower rim at B is practically horizontal and spreads so as to cover a comparatively large area and thus to thoroughly protect the socket-piece S and the screw pin. It also forms a broad shallow chamber H, the walls of which are coated with paraflin or its equivalent.
  • the chamber H is broad and shallow, so that its interior coating of paraflin or the like may be readily applied and renewed.
  • I claim An electric insulator of this class having a protecting-shield entirely surrounding the body of the insulator and extending downward and outwardly until its outer rim becomes practically horizontal, whereby a broad annular chamber is formed for receiving paraffin or other coating, substantially as and for the purpose set forth.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Insulating Bodies (AREA)

Description

V PATENTBD Nov. 29, 19.04.
S. QAKMAN.
INSULATOE.
APPLIOATION FILED NOV.7,1903.
N0 MODEL.
EEEEIE:
UNITED STATES Patented November 29, 1904.
PATENT OFFICE.
SAMUEL OAKMAN, OF CHESHIRE, MASSACHUSETTS, ASSIGNOR TO LUTHER A. WRIGHT, OF BOSTON, MASSACHUSETTS.
INSULATOR.
SPECIFICATION forming part of Letters Patent No. 775,986, dated November 29, 1904.
Application filed November 7, 1903. Serial No. 180,246. (No model.)
To a whom it Til/[by concern.-
Be it known that I, SAMUEL OAKMAN, a citizen of the United States, residing in Cheshire, in the county of Berkshire and State of Massachusetts, have invented a new and useful Improvement in Insulators, of which the following, taken in connection with the accompanying drawings, is a specification.
My invention relates to that class of insulators that are used for insulating suspended wires carrying electric currents; and it consists in the peculiar arrangement and shape of the members of which it is composed, the object being to secure a better insulation. This object I attain by the construction shown in the accompanying drawings, in which Figure 1 is an elevation of one of my insulators. Fig. 2 is a vertical section of the same. Fig. 3 is a plan of the same.
My insulator may be attached to the crossarm or any structure in the usual manner-- that is, by a pin and screw socket S or by any suitable means. It should be so far above its supporting structure that the under or interior surface H of the insulator shall be readily accessible to the hand, so that the caretaker may without trouble renew the insulating coating of paraflin or other substance that may he required.
The Wire-holding members of the insulator consist of the members E and E, which overhangthe lower part of the wire recess C, and thus form wedge-like lateral wire-receptacles D and D, so that when the wire is resting upon the insulator it can be drawn or will of its own accord enter one of the side receptaales, and thus be held automatically, although as a matter of additional security a tie-wire may be used, said tie-wire passingaround the lower part of one of the members E or E.
The protecting-shield member B surrounds the socket-piece S and with it forms the annular chamber H. The shield member connects with the body of the insulator and extends downward and outward. Its lower rim at B is practically horizontal and spreads so as to cover a comparatively large area and thus to thoroughly protect the socket-piece S and the screw pin. It also forms a broad shallow chamber H, the walls of which are coated with paraflin or its equivalent. The chamber H is broad and shallow, so that its interior coating of paraflin or the like may be readily applied and renewed.
I claim An electric insulator of this class having a protecting-shield entirely surrounding the body of the insulator and extending downward and outwardly until its outer rim becomes practically horizontal, whereby a broad annular chamber is formed for receiving paraffin or other coating, substantially as and for the purpose set forth.
In testimony whereoi'I have signed my name to this specification, in the presence of two subscribing witnesses, on this 5th day of N ovemher, A. D. 1903.
SAMUEL OAKMAN.
l/Vitnesses:
F. C. BROWN, Mrs. J. RoFENoLn.
US18024603A 1903-11-07 1903-11-07 Insulator. Expired - Lifetime US775986A (en)

Priority Applications (1)

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US18024603A US775986A (en) 1903-11-07 1903-11-07 Insulator.

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US18024603A US775986A (en) 1903-11-07 1903-11-07 Insulator.

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US18024603A Expired - Lifetime US775986A (en) 1903-11-07 1903-11-07 Insulator.

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