US124199A - Improvement in telegraph-insulators - Google Patents
Improvement in telegraph-insulators Download PDFInfo
- Publication number
- US124199A US124199A US124199DA US124199A US 124199 A US124199 A US 124199A US 124199D A US124199D A US 124199DA US 124199 A US124199 A US 124199A
- Authority
- US
- United States
- Prior art keywords
- insulators
- telegraph
- improvement
- insulator
- mixture
- 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 title description 13
- 239000000203 mixture Substances 0.000 description 5
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 2
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 2
- 235000013871 bee wax Nutrition 0.000 description 2
- 239000012166 beeswax Substances 0.000 description 2
- 229940092738 beeswax Drugs 0.000 description 2
- 229940043266 rosin Drugs 0.000 description 2
- 239000012177 spermaceti Substances 0.000 description 2
- 229940084106 spermaceti Drugs 0.000 description 2
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- WKQCYNCZDDJXEK-UHFFFAOYSA-N simalikalactone C Natural products C1C(C23C)OC(=O)CC3C(C)C(=O)C(O)C2C2(C)C1C(C)C=C(OC)C2=O WKQCYNCZDDJXEK-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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
Definitions
- This invention relates to an improvement in insulators for telegraph wires; and consists, tirst, of a vul 'anite body made with a shank or tang on which a screw-thread is formed, and having a deep recess surrounding a central portion in which an ordinary metal hook is inserted; and, second, in saturating or coating the insulator with the mixture described in an application which l have made even date with this for Letters Patent for the same.
- the object otl this invention is the production of an insulator, which shall be as nearly as is possible in an exposed delicate device aperfect uon-coinluctor, which is so hard as to be broken only by the most violent blow, and which is of such shape as to ward ott stones and other mis ⁇ siles thrown thereat.
- A may represent the insulator as a whole.
- the parts a and b I form in one piece, of vulcauite, and upon the shank or tang to is formed a screw-thread, whereby the insulator is readily inserted into an auger-hole bored in the pin or bracket B.
- the part b is provided with a deep cavity, c, surrounding the part d, in which latter an ordinary zineplated hook7 e, is iirmly inserted. By means otl this cavity the wire is more perfectly insulated than it' the part b was made solid.
- vulcanite is but a poor conductor of electricity, and hence its value as aninsulator; but, in order to render its propertyin this respect still greater, I immerse the insulator constructed after this plan in a melted mixture of rosin, bees-wax, spermaceti, or paraine, with or without oil, as described in my ot' the mixture is absorbed by the vulcanite, and the whole insulator' is evenly and nicely coated by the mixture; or, instead of this mixture I simply coat it with paratline.
- Rosin, bees-wax, spermaceti, &c. all have high insulating powers, and by thus combining them with vulcanite an almost perfect insulator is produced. Being preferably round, it is protected in a great measure from missiles thrown at it, and ot itself is not easily broken, as its elasticity will break the force of the blow.
- An insulator for telegraph-wires formed of vulcanite, in the manner described and repre sented, and supporting the ordinary wire-carrying hook, as and for the purpose set forth.
- GnanLns S'rownLL, Gno. A. S'rownLL.
Landscapes
- Insulating Bodies (AREA)
- Paints Or Removers (AREA)
- Organic Insulating Materials (AREA)
Description
M. G. FARMER.
improvement in Insulators.
N0. 1211?]99, PatentedMarch,18712.A
Unrrnn STATEs PATENT @Errea MOSES G. FARMER, OF SALEM, MASSACHUSETTS.
IMPROVEMENT IN TELEGRAPH-INSULATORS.
Specification forming part of Letters Patent No. 124,199, dated March 5, 1872.
SPECIFICATION.
To all Aahom fit may concern.'
Be it known that I, MOSES G. FARMER, ot' Salem, in the county ot' Essex and State of Massachnsetts, have invented a new and useful Improvement in Insulators for Telegraph \Yi1es; and I do hereby declare the following to be a full and correct description ol" the same, reference being had tothe accom panyin g drawing, in which the ligure represents a central application referred to. A small percentage longitudinal section of my insulator.
This invention relates to an improvement in insulators for telegraph wires; and consists, tirst, of a vul 'anite body made with a shank or tang on which a screw-thread is formed, and having a deep recess surrounding a central portion in which an ordinary metal hook is inserted; and, second, in saturating or coating the insulator with the mixture described in an application which l have made even date with this for Letters Patent for the same. The object otl this invention is the production of an insulator, which shall be as nearly as is possible in an exposed delicate device aperfect uon-coinluctor, which is so hard as to be broken only by the most violent blow, and which is of such shape as to ward ott stones and other mis` siles thrown thereat. This I accomplish as follows: K
In the drawing, A may represent the insulator as a whole. The parts a and b I form in one piece, of vulcauite, and upon the shank or tang to is formed a screw-thread, whereby the insulator is readily inserted into an auger-hole bored in the pin or bracket B. The part b is provided with a deep cavity, c, surrounding the part d, in which latter an ordinary zineplated hook7 e, is iirmly inserted. By means otl this cavity the wire is more perfectly insulated than it' the part b was made solid. As is well known, vulcanite is but a poor conductor of electricity, and hence its value as aninsulator; but, in order to render its propertyin this respect still greater, I immerse the insulator constructed after this plan in a melted mixture of rosin, bees-wax, spermaceti, or paraine, with or without oil, as described in my ot' the mixture is absorbed by the vulcanite, and the whole insulator' is evenly and nicely coated by the mixture; or, instead of this mixture I simply coat it with paratline.
Rosin, bees-wax, spermaceti, &c., all have high insulating powers, and by thus combining them with vulcanite an almost perfect insulator is produced. Being preferably round, it is protected in a great measure from missiles thrown at it, and ot itself is not easily broken, as its elasticity will break the force of the blow.
Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is-
An insulator for telegraph-wires, formed of vulcanite, in the manner described and repre sented, and supporting the ordinary wire-carrying hook, as and for the purpose set forth.
The above specification ot' my said invention signed and witnessed at Boston this 18th day ot' August, A. D. 1871.
MOSES G. FARMER.
TVitnesscs:
GnanLns S'rownLL, Gno. A. S'rownLL.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US124199A true US124199A (en) | 1872-03-05 |
Family
ID=2193630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US124199D Expired - Lifetime US124199A (en) | Improvement in telegraph-insulators |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US124199A (en) |
-
0
- US US124199D patent/US124199A/en not_active Expired - Lifetime
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