US317479A - William h - Google Patents
William h Download PDFInfo
- Publication number
- US317479A US317479A US317479DA US317479A US 317479 A US317479 A US 317479A US 317479D A US317479D A US 317479DA US 317479 A US317479 A US 317479A
- Authority
- US
- United States
- Prior art keywords
- insulator
- peg
- william
- apron
- corrugated
- 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
- 239000012212 insulator Substances 0.000 description 32
- 241000681094 Zingel asper Species 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 239000002023 wood Substances 0.000 description 4
- 230000000875 corresponding Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000002522 swelling 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
- H01B17/02—Suspension insulators; Strain insulators
- H01B17/12—Special features of strain insulators
Definitions
- Figure l is a longitudinal sectional elevation UNITED STATES PATENT OFFICE.
- My present invention has general reference to improvements in telegraph-wire insulators and it consists, essentially, in the novel and peculiar combination of parts and details of construction, as hereinafter first fully described, and then pointed out in the claim.
- Fig. 2 is a transverse sectional plan in line a; 00 of Fig. 1.
- the object of my invention is the production of a simple and efficient telegraph-wire insulator.
- A of the usual external contourthat is to say, with a neck or groove, a, for the reception of the wire, and a downwardly-extending apron, said insulator being made of glass, molded and cast in the usual manner, and provided internally with a serewthread, E, by means of which it is secured upon the peg or pin B.
- the apron forms thelower portion; but in those now in most extensive use said apron is of a largerinternal diameter than the size of the peg.
- I provide my insulator with a corrugated portion,- O, extending from the lower edge of the insulator to within a short distance of the screw-threaded portion, said corrugated part being arranged to fit the peg B with its points D only.
- the corrugated contourl derive the advantages that, first, the bearing upon the peak is extended downwardly to the full depth of the apron; second, that the projecting points D lock upon the peg B nearly as soon as the insulator is screwed upon the peg by the wood swelling an d entering the corrugated portion, while at the same time air is admitted to the peg to prevent rotting of the wood.
- a telegraph-wire insulator having in its interior a screw-threaded portion, substantially as described, and a corrugated portion, 0, as stated, the corrugations running vertieallythat is to say, in line with the center line of the threaded portion, substantially as specified-said insulator being adapted for application upon a screw-threaded peg, B, having the enlarged portion 1), as and for the object stated.
Landscapes
- Insulating Bodies (AREA)
Description
(No Model.)
. W. H. WRIGHT.
INSULATOR FOR ELECTRIC WIRES.
Patented May 5, 1885.
WITNESSES j 6' fiwm,
,Figure l is a longitudinal sectional elevation UNITED STATES PATENT OFFICE.
WILLIAM H. IVRIGHT, OF ROCHESTER, NEW YORK.
INSULATOR FOR ELECTRlC WHRES.
SPECIFICATION forming part of Letters Patent No. 817A'79, dated May 5, 1885.
Application filed February 2, 1885.
To all whom it may concern.-
Be it known that I, WILLIAM H. WRIGHT, of Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements on Telegraph-VVire Insulators; and I do hereby declare that the following description of my said invention, taken in connection with the accompanying sheet of drawings, forms a full, clear, and exact specification, which will enable others skilled. in the art to which it appertains to make and use the same.
My present invention has general reference to improvements in telegraph-wire insulators and it consists, essentially, in the novel and peculiar combination of parts and details of construction, as hereinafter first fully described, and then pointed out in the claim.
In the drawings already mentioned, which serve to illustrate my said invention more fully,
through an insulator constructed in accord with my invention. Fig. 2 is a transverse sectional plan in line a; 00 of Fig. 1.
Like parts are designated by corresponding letters of reference in both figures.
The object of my invention is the production of a simple and efficient telegraph-wire insulator. To attain this end I construct the same, A, of the usual external contourthat is to say, with a neck or groove, a, for the reception of the wire, and a downwardly-extending apron, said insulator being made of glass, molded and cast in the usual manner, and provided internally with a serewthread, E, by means of which it is secured upon the peg or pin B.
In glass insulators the apron forms thelower portion; but in those now in most extensive use said apron is of a largerinternal diameter than the size of the peg. This construction,
though desirable,is objectionable for the reason that the groove a is in a position so near to the lower portion of the screw-thread as to but imperfectly support the insulator upon the peg.
(No model.)
To avoid this objection, and at the same time give additional support to the insulator and retain the advantages of the apron, I provide my insulator with a corrugated portion,- O, extending from the lower edge of the insulator to within a short distance of the screw-threaded portion, said corrugated part being arranged to fit the peg B with its points D only. By thus giving to the or a portion of the interior of the insulator the corrugated contourl derive the advantages that, first, the bearing upon the peak is extended downwardly to the full depth of the apron; second, that the projecting points D lock upon the peg B nearly as soon as the insulator is screwed upon the peg by the wood swelling an d entering the corrugated portion, while at the same time air is admitted to the peg to prevent rotting of the wood.
It will therefore be readily seen that this corrugated portion of the interior of my improved insulator performs a very important function, and this notwithstanding the fact that the cost of manufacture has not been increased thereby in any way.
Having thus fully described my invention. I claim as new and desire to secure to me by Letters Patent of the United States As an improved article of manufacture, a telegraph-wire insulator having in its interior a screw-threaded portion, substantially as described, and a corrugated portion, 0, as stated, the corrugations running vertieallythat is to say, in line with the center line of the threaded portion, substantially as specified-said insulator being adapted for application upon a screw-threaded peg, B, having the enlarged portion 1), as and for the object stated.
In testimony that I claim the foregoing as my invention 1 have hereto set my hand in the presence of two subscribing witnesses.
WILLIAM H. WRIGHT. Attest:
FRITZ Voons, HENRY W. Luce.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US317479A true US317479A (en) | 1885-05-05 |
Family
ID=2386624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US317479D Expired - Lifetime US317479A (en) | William h |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US317479A (en) |
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0
- US US317479D patent/US317479A/en not_active Expired - Lifetime
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