| Description | Blowing cylinders and parts of blowing cylinders for various engines.
La Société Anonyme de Sclessin, Belgium:
75½ inch blowing cylinder for engines nos. 3, 4 & 5 - partially coloured reverse drawing, Jan. 1838 [see Portfolio 5/687 for main drawings].
Silverdale Iron Works:
Sketch section of 108 inch blowing cylinder - partially coloured drawing, Nov. 1846; 108 inch blowing cylinder - partially coloured reverse drawing, Apr. 1847; 108 inch blowing cylinder - coloured drawing, Oct. 1847 [see Portfolio 5/686 for main drawings].
Plymouth Iron Works:
Piston and covers for 90 inch blowing cylinders - partially coloured reverse drawing, Apr. 1850 [see Portfolio 5/669b for main drawings].
Brandram Bros.:
Blowing cylinder - coloured reverse drawing, Aug. 1850 [see Portfolio 5/1035b for main drawings]; blowing cylinder for 30 horse engine VN - tracing of 1825 drawing made Sep. 1850 [see Portfolio 5/1035a for original drawings].
Dunstan & Barlow:
81 inch blowing cylinder marked - partially coloured reverse drawing, Jun. 1857 (marked "not adopted"); 89 inch blowing cylinder - partially coloured reverse drawing, Aug. 1857.
Adalbert Eisenhutte:
80 inch blowing cylinder - partially coloured reverse drawing, Jul. 1857.
Blaenavon Iron Co.:
90 inch blowing cylinder - partially coloured reverse drawing, Oct. 1859; sections of blowing cylinder and nozzle - partially coloured tracing, Nov. 1859.
All the drawings except the first Silverdale drawing bear letter codes.
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