"Calder Pipe Stove. I. End Elevation. II. Elevation. III. Plan." — The Encyclopedia Britannica, 1893

Calder Pipe Stove

"Calder Pipe Stove. I. End Elevation. II. Elevation. III. Plan." — The Encyclopedia Britannica,…

"The oldest form of blast heating apparatus, applied by Neilson, consisted of a tubular rivetted boiler plate heating vessel, mounted in a brick chamber OOOO, and heated by a fire underneath fed through the door D, the waste gases from the fire passing out at the far end of the chimney. Crescent-shaped partitions p, p, p inside the heater caused the current of air from the blowing engine which entered at B to take a serpentine course as indicated by the arrows, finally passing off at S to the furnace." — The Encyclopedia Britannica, 1893

Hotblast Stove

"The oldest form of blast heating apparatus, applied by Neilson, consisted of a tubular rivetted boiler…

"The "pistol pipe" stove, still largely used, chiefly differs from this in having the limbs of the U tube closely adjacent, so as to consist in fact of a single tube with the partition D in the center, the cold air passing up one side of the partition and down the other so as to become heated in passing; to accommodate the pipe to an arched roof, the upper end is bent inwards, thus giving the form of a pistol stock and barrel to the double pipe, two ranks of pipes facing one another being built in the same stove." — The Encyclopedia Britannica, 1893

Pistol Pipe Stove

"The "pistol pipe" stove, still largely used, chiefly differs from this in having the limbs of the U…