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PART III. 



MISCELLANEOUS INTELLIGENCE, 



Art. I. General Notices. 



Weekes's Mode of heating hy hot Water. — Mr. Weekes has taken out a 

 patent for his improvements " in raising, lowering, or conveying heated 

 water;" and the following is an extract from the specification, as given in 

 NewtorCs Journal. Mr. Weekes founds his claim of invention on the four 

 following particulars : — " First, in applying a cistern to the boUer for the 

 purpose of supplying it with water, without making that cistern a part of 

 the boiler, but only connected thereto by a tube ; secondly, in a method of 

 raising heated water to any required height, for the purpose of warming the 

 upper parts of the building, without employing pumps or siphons ; thu'dly, 

 in the employment of a large ascending pipe, with a smaller retm'ning pipe 

 within it, which shall convey the water after it has parted with a portion of 

 its heat, at an elevated situation, back again to the cistern, and thence into 

 the boiler ; and, fourthly, in the adaptation of smaller pipes for conducting 

 the heated water to any particular pai't of the building, while main pipes or 

 tubes may be closed, and out of action. These several improvements are 

 set out in a drawing {fig. 9.), which represents the apparatus partly in 



J 



section ; a is the furnace ; h, the boiler ; c, the cistern for supplying the 

 boiler, from which the water passes through the tube d ; the heated water 

 rises from the boiler through an inclined tube e, into a chamber f, and 

 thence passes along the flat tube g g. This tube (g) is proposed to be 2 

 or 3 ft. broad, and only a few inches deep, in order that its upper surface 

 may send up as much heat as possible; at the end of the tube g there is a 

 receptacle into which the water is discharged, and thence it passes by the 

 lower tube (A) back to the cistern (c), and descends again through the 



