Cast cannon

Kahn visited an iron works at Trois Rivieres, between Quebec and Montreal, on the St. Lawrence River. The ore is got, said he, two French miles and a half from the iron works and is carried thither on sledges.. . . This iron work was first founded in 1737 by private persons who afterwards ceded it to the king they cast cannon and mortars here of different sizes, iron stoves which are used all over Canada, kettles, etc.. . . They have likewise tried to make steel here, but cannot bring it to any great perfection. . . (187). 

Accdg to Greener (Ref 7, p 22), the earliest cast cannons made of copper and tin were produced by a founder named Aran at Augsburg, Germany. They were primitive breech-loaders, built up of iron strips surrounded by iron rings — a method which continued for several centuries (See illustrations on p 22 of Ref 7)... 

The first of these reactions takes place at temperatures of about 150°C, the second reaction proceeds at about 550—660°C. Typical furnaces used to carry out the reaction include cast-iron retorts the Mannheim mechanical furnace, which consists of an enclosed stationary circular muffle having a concave bottom pan and a domed cover and the Laury furnace, which employs a horizontal two-chambered rotating cylinder for the reaction vessel. The most recent design is the Cannon fluid-bed reactor in which the sulfuric acid vapor is injected with the combustion gases into a fluidized bed of salts. The Mannaheim furnace has also been used with potassium chloride as the feed. 

Low molecular weight solids were dispersed in KBr pellets polymer films were cast from CHCI3. Intrinsic viscosities were measured by standard procedures using a Cannon Ubbelohde dilution viscometer. 

Note Mahomet s great cannons were cast... 

Note The compressed Guncotton contg about 18% moisture proved to be so successful that it was adopted by several countries (especially by Russia) for loading not only of sea mines but also of Whitehead torpedoes and cannon shells. Russian Artillery used it during the Russo-Japanese War (1904—1905), but it proved to be inferior to Japanese shells loaded with Shimose (cast Picric Acid). Senior author of this Encycl, who served in 1917 in the Russian Navy, remembers that torpedoes on his destroyer of 1905 vintage were loaded with compressed, moist Guncotton... 

Two 30-mm Aircraft Cannons, the Type 2 and Type 5 were used during WWII. They were of Swiss (Oerlikon Co) design. Same proplnt was used in ammo of these guns. It consisted of graphited, single-perforated cylinderical grains of NC. The projectiles used were as follows 30-mm Type 5 HE Proj was filled with cast Pentolite (p 451)... 

Gas Cannons. The first cannons were small, crudely made cast metal pots shaped like a vase which fired iron darts. The invention of gun powder about the middle of the 13th century made possible the use of cannon to throw projectiles by use of expanding gas. 

The sixth book is a lengthy treatise on casting of cannon, bells, and other objects, and for making the molds for such castings, the metals, furnaces and appliances. Those who have read the memoirs of Benvenuto Cellini (1500-1577) will remember his description of such a casting, and... 

The lovers of fine points may argue over Berthold s existence, but it can be historically established that Freiburg in the fourteenth and fifteenth centuries was a flourishing center for the casting of cannon and the training of gunners. 

The problem was that cannon were then made with cast iron, a form of iron that contains relatively large amounts of carbon. Cast iron is very hard, but it breaks very easily. The only substitute available for cast iron at the time was wrought iron, which is nearly pure iron. Wrought iron, however, was not suitable for making cannon (or almost anything else) because it was too soft. 

The discovery of the Coriolis effect resulted from work done by Caspar Gustav de Coriolis (1792-1843) at the behest of Napoleon, who wanted to know why his cannon balls never went straight. There is no historical record to indicate that Coriolis cast any light on Napoleon s problem but, as often happens in research, unexpected findings can stimulate curiosity and lead to other useful outcomes—as Pasteur once said, Chance only visits the prepared mind. ... 

It had to be hollow, I decided, or it would weigh as much as a cannon and the floor beams would collapse. I took out my dagger and rapped the hilt on the god s chest. Yes, it was hollow. Bronze castings always are. 

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