456 



Severf?, King and Co. versus 



The points which these gen- 

 tlemen wished to establish were 



1. That tlie mode of hcat- 

 m^ bv oil invented by Mr. 

 Wilson, and adopted by Messrs. 

 Severn and Co., was less dan- 

 gerous than the ordinary mode 

 of boiling sugar. 



2. That oil kept at a tem- 

 perattue of o()0 degrees for two 

 months, underwent no change 

 whatever, excppting its colcnr 

 l<v..:oniing darker, and its sub- 

 stance thicker; that by such 

 operation it did not become at 

 all more inflammable. 



3. That oil heated from 580 

 to (500 would give out an in- 

 flammable vapour (but none be- 

 low this point), which ascend- 

 higin a tube in the Ijoiler would 

 be condensed, and fall back 

 aga'n as oil, as the vapour 

 could not pass off unless the 

 tube through which it escaped 

 were at the same heat as the oil 

 in the boiler. 



4. That to heat oil to a dan- 

 gerous point, it would require a 

 very large and very fierce fire- 

 continued for eight or ten hours ; 

 and th.it no sized fire, placed 

 under the boiler ased by the 

 Plaintiffs, could possibly produce 

 danger. 



5. Dip|)le's oil could not pos- 

 sibly be produced in a boiler si- 

 milar to the one used by Messrs. 

 Severn and Co. Whale oil 

 passed 



The points which these gen- 

 tlemen wished to establish were 



1 . That the mode of heating 

 by oil, &;c. was dangerous, and 

 much more so than the ordi- 

 nary mode of boiling sugar. 



2. That oil kept at a tem- 

 perature of 360 degrees for two 

 months did become changed ; 

 that a partial derom position 

 took place, and that it became 

 much more inflammable. 



3. That oil heated to GOO 

 would give out a vapour highly 

 inflammable, burning strongly 

 and continuously at the extre- 

 mity of a tube between 4 and 5 

 feet long, and even at the end 

 of a condensing worm 23 feet 

 long; that infiammf\ble vapour 

 would be given out at a heat 

 much below that point; that 

 combustion has taken place at a 

 heat below 210, and frequently 

 at various heats from 400 to 

 600; the danger of using oil as 

 a heating medium becomes in- 

 creased from the uncertainty of 

 the process. 



4. Thatwith an ordinary fire 

 not larger than is usual for the 

 size of the boiler, without any 

 particular urging, oil, previously 

 exposed for some weeks to a 

 temperature of 360*^, may be 

 carried from a safe temperature 

 to a highly inflammable one in 

 less than twenty minutes. 



5. Oil was submitted to the 

 process of distillation from the 

 boiler in which the experiments 

 were tried at a heat of-600 ; the 



vapour 



