^/orfe of Heating Rooms hj Steam, 1 77 



the spinning niachiuery, it was impossible to erect the pipes 

 in any other situation, or to convey them along the rooms, 

 so as to produce a more equal distribution of heat. This, 

 however, can be so easily effected, when there are no ob- 

 stacles, such as have been mentioned, that it is scarcely ne- 

 cessary to enter into any detail of the means, it may be 

 barely mentioned that the memorialist has fitted up the 

 apparatus in two cotton mills, which arc now under his ma- 

 nagement, belonging to George Houston, esq. and Co. of 

 Johpstone, iu a manner which compleleiy distributes the 

 heat. h\ one of these mills, consisting of six stories, a 

 lying pipe of cast iron, 3 inches in diameter, is carried along 

 the middle of the lower story, about two feet from the 

 ceiling, with a small declivity to carry off the water. This 

 pipe heats the story in which it is placed. Tin pipes, 7^ 

 inches diameter, communicating with this lying pipe, are 

 carried up perpendicularly through all the floors to the top 

 of the house at the distance of seven feet from each other, 

 and form a Wnt of heated columns in the midvUe of each 

 room. — The same general plan has been followed in the 

 other mill. But there are several irregularities in the build- 

 ing, which require a little variation of the contrivances for 

 diflusing the heat to every quarter. Some of the rooms 

 having been added since the first erection of the mill, are 

 connected with the main body of the building awkwardly. 

 Into these the steam is earned by lying pipes, slightly in- 

 clined, and communicating with the principal apparatus. 

 The steam may afterwards be distributed by other pipes in 

 any way that is thought convenient. The moniorialist has 

 found no difficulty in conveving, i-y such means, the steam 

 necessary to produce the degree of heat required in every 

 variety of situation. 



In the former of the last-mentioned mills, the perpendi- 

 cular pipes are connected under the ceiling of the garret by 

 a pipe t2J- inches diameter, slightly inclined, the extreniiticj 

 of which pass through the walls of the house, and are pro- 

 vided with valves opening outwards. A connecting pipe, 

 with similar valv^is, is placed under the ceiling of ilie third 

 story. These are imended for the; more ea^y circulation of 

 M 2 the 



