US1153617A

US1153617A - Lightning-rod.

Info

Publication number: US1153617A
Application number: US66586311A
Authority: US
Inventors: Julius F Goetz
Original assignee: Individual
Current assignee: Individual
Priority date: 1911-12-14
Filing date: 1911-12-14
Publication date: 1915-09-14
Anticipated expiration: 1932-09-14

Description

autres r. costra, or Henneman, Wisconsin.

LIGHTNING-zeon.

specification of Letters Patent. Patented Sept.. 14, 12H5.

Appncanon aiedeaecember 14, am. serial rio. ceases To all colmi/1. it 'may concern lle it known that JULIUs l?. (on'rz, a citizen of the United States, and resident of Hartford, in the county of Washington and State ol" lVisconsin, have 'invented new and useful Improvements in Lightning-Rods, of which the following is a description, referencejbeinghad 'to the accompanying; drawings, which are a part of this specilication.

This invention has for its object to provide a lightningrod whichwill be flexible,

so as to be readily bent around corners and edges of the building and which at the saine time Awill be less expensive than cable con structions at present in use.

The inrention 'further ydesigns to provide a lightning rod ccn'iprising a flat strip of flexible material which is coiled helically to forni 'a hollow self sustaining core upon which the wires forming 'the surface 'of the rod are wound 'and supported-` Vlfitli the above and other objects in View the invention consists in the lightning rod herein 'claini'ed and all equivalents. i

Referring to the 'accompanying drawings' 4in which ,like characters ol' reference indicate the same partsin different views: Figure l is a perspective view of a fragment of lightning rod constructed in accordance with this invention and shown on a large scale for sake ot clearness of illustration; and, Fig. 2 is a transverse sectional view thereof.

ln these drawings 10 indicates 'the core which is formed from a flat strip or selfsustaining flexible material, preferably of sheet metal, such as Copper, said strip being v. coiled. in the form of a helix, said helix.

forming a. hollow core upon which the wires forming the surface. of, the rod are wound and supported. Thestripof material being initially fiat when it.P coiled the' convolutions of the coils WilV ,t ni bearing surfaces for the wires astheconi olutions of the coils are of the same diameter the'successive coils will 'forni a longitudinally extending hear- :ingy surface, portions of Which are spaced apart at each convolution or the coil.

The pitch on which the ribbon is coiled is preferably so great as to leavel considerable space between the co'nvolutions thereof, equal to orgreater .than the Width of the ribbon but the distance between the convolutions may be varied withoutfdeparting from ranged side by side so as to complete a cylindrical formation and these f wires are coiled in the direction opposite to the direction of turning of the ribbon forming the core but preferably at a pitch greater than the pitch ol3 the convolutions of the ribbon, so that each strand of wire will cross the successive convolutions oi' the ribbon l0 and be held in place thereby. The resiliencyT of the wires is s uilicient to cause them to bridge the gap between the successive convolutions of the core without disturbing the uniforml ity inthe appearance of the cylindrical hol* low cable construction.

The invention possesses `the advantage over solid cable constructions, in which the entire body is made up of strands of Wire, of beinglighter to handle and less expensive to manufacture, while plissessing the saine eiiciency because of the fact that the e'liective conductivity ot' a lightning rod is deterlmined by its external surface only.`

The light sheet metal core is flexible to a sufficient extent to enable the cable to be bent as desired to avoid.. projections of the building and to enable it to be placed where* ever desired without the formation of angle joints. l

l/Vhat 1' claim as new and desire to, secure by Letters Patentis: l l

l; A `lightning conductor comprising a. hollowr self-sustaining wire-supporting core formed from a flat strip of flexible 'Inaieriah and an outer surface, inclosing said core, comprisingl a plurality of wires wound upon the core to torina conductor.

2. A lightning `conductor comprising a hollow self-sustaining wire-supporting core formed from a strip of flexible material helically coiled, and an outer surface, inclosing said core, comprising a plurality of lielically coiled wires wound upon the core to form a conductor tube. p 4

3. A. liglntning` conductor comprising a hollow selfsustainingg; Wire-supporting core formed from allat strip of 'flexible electrical-conducting' material helically coiled, and an outer/.surface inclosing said core, cornprising aplurality of helically` coiled wires woundV aroiu-dffnpori .the .bearing surfaces formed bytheconvolutioIs-o the helical coil otthe'core 'to 'form @conductor tube.

.4. A li,fghtningy condu'e Gcomprising a hollow self-sustaining w supporting core formed from a Hat viexib netal strip helititi ile

cally coiled, und anouter surface, inclosing In testimony whereof, afix my signasnid core, comprising a plurality of helically ture, iii presence of two Witnesses.

coiled wires 'wound around upon the bearing 1 sui-faces formed by the eonvolutions of the JULIUS GOLTZ' helical coils of the core 'and across the gaps Vvlitnesses: between the alternate convolutions of the v R. S. C. CALDWELL,

coil to form a conductor tube. l. KATHERINE HOLT.