Volume 75: James and William Macarthur business correspondence, 1823-1877: No. 412
that the pipes may be readily put together, or removed at anytime.
The cost of the materials above specified, including delivery in London would be Ninety Five pounds £95. 0. 0. Terms, Nett cash on delivery.
If the pipes in the 3 Houses are 5" instead of 4" (the mains remaining the same) The cost would be £109. 0. 0
The cost of screw stop valves for the return pipes would be £9.12. 0 extra, but as there would be no circulation in the pipes when the top valve is closed, these would scarcely be necessary.
Boulton & Paul
Dimensions of present Furnace door & the core at C Plate throat 15½ inches wide 16½ inches high in centre the door being a little smaller & arched at top. The throat extending 15 inches in length lined with wrought iron 3/8 plates to prevent abrasion.