Daily American telegraph. [volume] (Washington [D.C.]) 1851-1852, 1852-10-11
Protection from Lightning.

TIME undersigned, being the duly appointed agent Of
NoRoD MAsUPAoToRr, Coyington, Kentucky begs to offer
these superior Rods of Carbonzed Annealed
Iron, with Zinc Protectors, and Eectropostye elements
combined in their manufactured thus rendering them equal
TO copper conductors They In teneet lengths with
new style Of metallic atents attachnsns for brick or
frame buildings also glass solaers of novel and nge-
noas % rmns aas
twelve inches long, surrounded at the base with three angu
lar negative magnets which possess the power to an extra
ordinary extent dschargng the opposite elements of the
most fearful thunderstorm and embrace the entire perc
ton Of science to the present me the whole consttu.
ting the most magnificent and perfect silent conductor
presented TO the public
Safety has not been compromised by anording these
ceent rods at such low rates. the greatest attention has
given their construction be readily attached
The astonishing Of the negative magnets In dscharg
srsed BY the Electromeer. when unmasneaed points
shown but slight results though placed under the
conditions In fact they gather and silently discharge
electricity from the atmosphere when you would scarcely
suspect any being present.
These improvements being by double letters pa.
tent you hereby cautioned against laying yourselves
liable by purchasing of those who not authorized
who substituting inferior limitations. All agents duly
asss''%' ''" snow ''''' OF
do hereby certify that have app lied various powerful
chemical reagents 70 sprats Patent Points for Lightning
that they Will resist the action Of atmospheric causes and
thereby preserve the extremity sharpe condition most
enta to protection against lightning The reagents used
dum common salt acetic acid suphuric add and hydro
chloric acid. With the first, there acon the
meta with the several acids there very stpa fact
sufficient to show that atmospheric influences would have
no sensible effect.
JOHN LEcoNTE, Prof Of Nat Phil. tChsm.
UNIVERSITY OF Ga, October 8, 1850.
The Lightning Conductors Of Mr.. sprat offered to me,
well calculated TO perform the Office for which they
Intended Yours truly, Prof HOBT. PETER.
LEXINGTON Kr., February 20. 1850
CHICAGO, September Q, 1901
This may certify that have examined, somewhat crit
cally James spratts Patent Lightning Rods and that
OF opinion that IL constructed scientific principles For
combining durability, cheapness, and efficacy deem IL
equal and think SUPERIOR 70 any other rod offered
for my inspection. Prof JAS. v. z. BLANEY.
AUGUSTA, (0A) November II, 1850
This will certify that have examined the Lightning
Rods Metallic Points, and Isolating Attachments, msnu-
featured by Mr. spra and regard them constructed In
conformity to the general laws Of the electric fluid and the
metallic compound constituting the Points, promising,
from the result of several which they submit
most likely TO corrode them. A. MEANS,
Prof Phys Sc, Emory College, 0s and Prof Chem. ana
Pharm., Medical College, Ga.
The Lightning Conductors put up by Mr. Henry NJ Smith,
Of this city, the plan Of Mr. Spra appear TO me 70 be
very well dsyed and in point Of mechanical construction,
the best have
1t is to be hoped that Of these Rods may become
general an imporant auxiliary defence against danger
which BE- regarded Of no ordinary magnitude to
which Ali bu,ldngr are liable r. SIIIMAN, Jr,
Prof Of Chem. in the University Of Lousviiie.
LoursvrILr, january q, 1851.
All orders LEFT at ANDREW DUFYYs Stove Mandatory,
7th street, win be promptly attended to; or at GEORGE
BELLS Alexandria, Va, corner Of King and st. Aaph sts
an 14-U #.2 tt. .U