US121884A - Improvement in lightning-rods - Google Patents
Improvement in lightning-rods Download PDFInfo
- Publication number
- US121884A US121884A US121884DA US121884A US 121884 A US121884 A US 121884A US 121884D A US121884D A US 121884DA US 121884 A US121884 A US 121884A
- Authority
- US
- United States
- Prior art keywords
- lightning
- rods
- improvement
- rod
- stephen
- 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
- 239000011324 bead Substances 0.000 description 6
- 238000005452 bending Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 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
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/08—Several wires or the like stranded in the form of a rope
Definitions
- Wimwm gunman Y I gttmegs.
- Figure 1 is atop View
- Fig. 2 is atransverse vertical section.
- This invention relates to a lightning-rod constructed of two sheet-metal plates of any suitable material, one of said plates having a longitudinal rib struck alone its center line, which plate is placed side by side with the other tlat plate, the two together forming a rod with a hollow central triangular chamber, and being connected by bending the edges of the ribbed plate around those of the tlat one in the shape of beads.
- a is the aforesaid flat plate, and I) the ribbed plate, of which 0 is the rib and (I (Z- the heads, 0 being the hollow central chamber.
- the rib and beads strengthen the rod and also enlarge its conducting surt'ace.
- the flat sides and the comparative thinness of the rod cause it to stow compactly.
- this rod In proportion to its bulk, this rod has a very large conducting surface and great strength.
Description
STEPHEN H. MINER.
V Improvement in Lightfiing Rods.
N0. 121,884, I I Patented Dec.12, 1871.
, Wimwm: gunman Y I gttmegs.
UNITED STATES mana e STEPHEN H. MINER, OF WINONA, MINNESOTA.
WHRQVEMENT IN LHGHTMNG FZQDS.
Specification forming part of Letters Patent No. 121,884, dated December 12, 1871.
To all whom it may concern:
Be it known that I, STEPHEN H. MINER, of Winona, in the county of W'inona and State of Minnesota, have invented certain Improvements in Lightning'- iods; and I do herebydeclarethat the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, rei'erence being had to the accompanying drawing forming a part of this specification.
Figure 1 is atop View, and Fig. 2 is atransverse vertical section.
This invention relates to a lightning-rod constructed of two sheet-metal plates of any suitable material, one of said plates having a longitudinal rib struck alone its center line, which plate is placed side by side with the other tlat plate, the two together forming a rod with a hollow central triangular chamber, and being connected by bending the edges of the ribbed plate around those of the tlat one in the shape of beads.
Referrin to the drawing, a is the aforesaid flat plate, and I) the ribbed plate, of which 0 is the rib and (I (Z- the heads, 0 being the hollow central chamber. The rib and beads strengthen the rod and also enlarge its conducting surt'ace. At the same time the flat sides and the comparative thinness of the rod cause it to stow compactly.
In proportion to its bulk, this rod has a very large conducting surface and great strength.
Having thus described my invention, what I claim as new, and desire to secure by Letters Patent,
As an article of manufacture, a lightning-rod coi'lstructed ot' the plates (0 and having the central rib c and beads d, as specified.
STEPHEN H. MINER.
YVitnesses A. RUDOLPH,
T. S. GMIPBELL. (50)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US121884A true US121884A (en) | 1871-12-12 |
Family
ID=2191325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US121884D Expired - Lifetime US121884A (en) | Improvement in lightning-rods |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US121884A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2839621A (en) * | 1953-02-25 | 1958-06-17 | Borg Warner | Electrical trolley and conductor apparatus |
-
0
- US US121884D patent/US121884A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2839621A (en) * | 1953-02-25 | 1958-06-17 | Borg Warner | Electrical trolley and conductor apparatus |
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