US448956A - Electric insulator - Google Patents
Electric insulator Download PDFInfo
- Publication number
- US448956A US448956A US448956DA US448956A US 448956 A US448956 A US 448956A US 448956D A US448956D A US 448956DA US 448956 A US448956 A US 448956A
- Authority
- US
- United States
- Prior art keywords
- insulator
- threaded
- ring
- conductor
- electric insulator
- 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 - Lifetime
Links
- 239000003989 dielectric material Substances 0.000 title 2
- 239000012212 insulator Substances 0.000 description 32
- 239000004020 conductor Substances 0.000 description 14
- 235000020639 clam Nutrition 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 230000036633 rest Effects 0.000 description 2
Images
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
- H01B17/22—Fastening of conductors to insulator
Definitions
- the object of our invention is to provide an insulator and support for telegraph, electric-light, and other electrical conductors.
- Our invention consists in an insulator of glass or other suitable material adapted to screw on the usual wooden pin, and furnished in the end with a transverse groove for receiving the wire, the outside of the insulator being provided with a threaded portion for receiving a threaded ring, and in the combination, with the insulator thus formed, of a threaded clam ping-rin g, and a loop connected with the same for holding the conductor in place in the insulator.
- the insulator-body A is provided with a threaded central aperture for receiving the usual insulatonsupporting pin 13, and the insulator is provided with a sleeve a, which is made larger in the internal diameter than the pin 13, thus affording an annular space for dry air.
- a transverse notch C for rc
- the ring F on the threaded portion of the insulator the conductor D is securely clamped. ⁇ Vhen it is desired to release the conductor, the ring F is unscrewed, when the loops Il may be readily removed.
- the block G is provided with a projection passing down wardly into the notch C and bearing upon the conductor D.
- the block G is grooved transversely, and a single loop II provided with hooks I rests in the groove, and its hooked ends are received upon the edge of the ring F, as in the other case.
- a telegraphic insulator provided with the externally-screwthreaded portion E and a groove 0, a collar fitted to the threaded portion, a block G, fitted to the groove 0 and adapted to bear upon the conductor, and one or more loops arranged to bear upon the block G and provided with hooks for engaging the ring I", substantially as specified.
Description
NANE
ed Mar. 24,1891.
(No Model.)
G,.H. GRAHAM & T GAN ELEGTRIO INSULATOR.
No. 448,956. Patent ZMWW MIA/v ATTORNEYS UNITED STATES PATENT OFFICE.
GEORGE II. GRAHAM, OF RIDGELAND, AND THOMAS GANNAXE, OF CHICAGO, ILLINOIS.
ELECTFHC INSULATGR.
SPECIFICATION forming part of Letters Patent No. 448,956, dated March 24;, 1891.
Application filed August 2, 1390. Serial No. 360,739. (No model.)
T0 at whom. it may concern.-
Be it known that we, GEORGE ll. GtmHAM, of Itidgeland, and THOMAS GANNANE, of Ohicago, both in the county of Cook and State of Illinois, have invented a new and Improved Insulator, of which thefollowing is a specification, reference being had to the annexed drawings, forming a part thereof, in which- Figure 1 is a perspective view of our improved insulator. Fig. 2 is a vertical transverse section of a modified form of the same, and Fig. 3 is a perspective view of the hook used for attaching the wire to the insulator.
Similar letters of reference indicate corresponding parts in all the views.
The object of our invention is to provide an insulator and support for telegraph, electric-light, and other electrical conductors.
Our invention consists in an insulator of glass or other suitable material adapted to screw on the usual wooden pin, and furnished in the end with a transverse groove for receiving the wire, the outside of the insulator being provided with a threaded portion for receiving a threaded ring, and in the combination, with the insulator thus formed, of a threaded clam ping-rin g, and a loop connected with the same for holding the conductor in place in the insulator.
The insulator-body A is provided with a threaded central aperture for receiving the usual insulatonsupporting pin 13, and the insulator is provided with a sleeve a, which is made larger in the internal diameter than the pin 13, thus affording an annular space for dry air. In the upper portion of the insulater is formed a transverse notch C for rc ceiving the conductorD. The body of the insulator is furnished near the upper end with a threaded portion E for receiving the threaded ring I To the notch (J is fitted a block G,
threaded ring F.
The
the ring F on the threaded portion of the insulator the conductor D is securely clamped. \Vhen it is desired to release the conductor, the ring F is unscrewed, when the loops Il may be readily removed.
In the modification shown in Fig. 2 the block G is provided with a projection passing down wardly into the notch C and bearing upon the conductor D. In this case the block G is grooved transversely, and a single loop II provided with hooks I rests in the groove, and its hooked ends are received upon the edge of the ring F, as in the other case.
Having thus described our invention, we claim as new, and desire to secure by Letters Patent- 1. An externallyscrcw-threaded insulator provided with a transverse groove in the end thereof, a screw-threaded collar fitted to the threaded portion of the insulator, and a loop or loops for clamping the conductor in the groove of the insulator, substantially as specified.
2. A telegraphic insulator provided with the externally-screwthreaded portion E and a groove 0, a collar fitted to the threaded portion, a block G, fitted to the groove 0 and adapted to bear upon the conductor, and one or more loops arranged to bear upon the block G and provided with hooks for engaging the ring I", substantially as specified.
GEO. II. GRAHAM. THOMAS G-ANNANE. \Vitnesses:
MARSHALL WAIT, STEPHEN G. KNIGHT.
Publications (1)
Publication Number | Publication Date |
---|---|
US448956A true US448956A (en) | 1891-03-24 |
Family
ID=2517841
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US448956D Expired - Lifetime US448956A (en) | Electric insulator |
Country Status (1)
Country | Link |
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US (1) | US448956A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4810837A (en) * | 1988-02-02 | 1989-03-07 | Giroux Pierre R | Clasp for fixing an electrical wire to an insulator and method of fixation |
-
0
- US US448956D patent/US448956A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4810837A (en) * | 1988-02-02 | 1989-03-07 | Giroux Pierre R | Clasp for fixing an electrical wire to an insulator and method of fixation |
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