People's Pilot, Volume 4, Number 40, Rensselaer, Jasper County, 23 March 1895 — TEMPERING ALUMINUM. [ARTICLE]

TEMPERING ALUMINUM.

A Recent Dtacovery That May Greatly lucre'', e Its Vsefu tale**. The successful tempering of aluminum so as to give it the consi itency of iron is the latest tri can ph <.» F. Allard, the Levis blacksmith, wbotte rediscovery of the lost Egyptian art of harJening copper startled the meci anh al world some three or four years tygo and only faii'-d t • make the fortune of its author because of the expenslwi mens of the process. A recent trial of Allan'* j tempered h.umiin «** lias pro\ ed the success of I,ls new method in Queitpc and the practical purposes to which it can be applied. He has made and hardened a cannon, w’-i'h has-just beep tested in presence of Col. Spence, the American const!. with the grep est success. This cannon is twenty-six inches long and I . c inchi s- in dial .eter, the metal of the gun outside the bore being o ly a quarter of an • thick A ci ai je consirtIng of a pound of powder, has been successfully fired oil of tl :, 11. tie pl we of ordnance vithout having; any appreciable thect upon it. A aev and more scientific trial cf the ci.nnca has been ordered by the ('anaflan military authorities, to be held im t edi itely at the Quebo* cit.lel i. ’ the aitiLiry experts there, and the United States consul, in, view of this move, is understood to have encouraged Mr. AJlarc to manufacture, as speedily .is possible, a cannon twelve fee in length for shipment to Washington, but vv. ethe this is to be at Allard’s risk or by ; istructions from the United Stales government is not known and can not be learned here. The great advantage of cannons made of aluminum, everything eise being equal, lies of course m the lightness of the metal. The cannon just sted here weighs fourteen pounds. If *l were of iron and the same dim melons it would weign 180 pounds. Allard's friends here, .nd military enihusi.u ts over the project, assert that if u e tempered alumi.;Ui. supersedes iron for the making of L.g guns field trtillei-ymen, nstead of lu. ig dependent upon horses and gun carriages for dragging neir weapons over rung.* country, will be able to shoulder tj.em like musket.'. In appearance the .initmed spei!i_.jen lo<.ks us though it were made of ,jurnis.,ed silver.