US188444A - Improvement in lightning-rods - Google Patents
Improvement in lightning-rods Download PDFInfo
- Publication number
- US188444A US188444A US188444DA US188444A US 188444 A US188444 A US 188444A US 188444D A US188444D A US 188444DA US 188444 A US188444 A US 188444A
- Authority
- US
- United States
- Prior art keywords
- lightning
- rods
- core
- improvement
- sheath
- 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
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2015—Strands
- D07B2201/2023—Strands with core
Definitions
- Fig. 2 is a transverse sectional view of the same.
- This invention relates to that class of light ning-rods in which a straight central core is surrounded by twisted wires.
- Thenature of said invention consists in combiningwith said wires and core, which are iron,
- A designates the central iron core of my lightningrod.
- B designates a copper cylindrical sheath or envelope, concentric with said core in crosssection, and fitted closely thereon.
- G designates a number of iron wires, which are tightly wound about said sheath, as shown in Fig. 1.
- This construction has all the advantages of the ordinary cable lightning rods, and some additional ones, which arise from the use of said cylindrical sheath B. Said sheath increases the conducting capacity of the rod nearly as much as if both it and core A were made of copper in one piece, since electricity.
- Said sheath is protected, by twisted iron wires 0, from the weather, and from accidental or unintentional injury, and thus remains bright and whole, forming an excellent conductor. In like manner it protects the core A, so that in order to destroy the efficacy of my compound lightning-rod it becomes necessary to cut through several successive layers of heterogeneous conducting material.
Description
N. VAN LOON.
LIGHTNING ROD.
N0.188,444. Patented March13, 1877.
WITNESSES T 2/ olgVENTOR m W M; I ,2 330770 We w r ATTORNEYS,
UNITED STATES PATENT rrrgcn NICHOLAS VAN LOON, OF ST. CLOUD, MINNESOTA.
lMPRO VEMENT IN LIGHTNING-RODS Specification forming part of Letters Patent No. 188,444, dated March 13. 1877; application tiled J anuary 20, 1877.
tion of a perspective view of my lightning-rod,
and Fig. 2 is a transverse sectional view of the same.
This invention relates to that class of light ning-rods in which a straight central core is surrounded by twisted wires.
Thenature of said invention consists in combiningwith said wires and core, which are iron,
- a coppersheath or tube, enveloping said core,
and made concentric therewith in cross-section.
In the accompanying drawings, A designates the central iron core of my lightningrod. B designates a copper cylindrical sheath or envelope, concentric with said core in crosssection, and fitted closely thereon. G designates a number of iron wires, which are tightly wound about said sheath, as shown in Fig. 1.
This construction has all the advantages of the ordinary cable lightning rods, and some additional ones, which arise from the use of said cylindrical sheath B. Said sheath increases the conducting capacity of the rod nearly as much as if both it and core A were made of copper in one piece, since electricity.
prefers the surface, while its expense is much less than that of such a core.
Said sheath is protected, by twisted iron wires 0, from the weather, and from accidental or unintentional injury, and thus remains bright and whole, forming an excellent conductor. In like manner it protects the core A, so that in order to destroy the efficacy of my compound lightning-rod it becomes necessary to cut through several successive layers of heterogeneous conducting material.
What I claim as new, and desire to secure by Letters Patent, is
The combination of copper sheath B with iron core A and twisted iron inclosing wires 0, substantially as and for the purpose set forth.
In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.
NICHOLAS VAN LOON. Witnesses:
L. A. EVANS, Tnos. U. McOLURE.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US188444A true US188444A (en) | 1877-03-13 |
Family
ID=2257851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US188444D Expired - Lifetime US188444A (en) | Improvement in lightning-rods |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US188444A (en) |
-
0
- US US188444D patent/US188444A/en not_active Expired - Lifetime
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