| Description | Pumping and Canal Engines. (22 items).
591. Gilbert Meason and partners, Wanlockhead Mine (I). Feb., Apr., Aug., Sep. 1803, Mar., Jun. 1804. 22 items.
Engine with 60 inch cylinder, 8 foot stroke, parallel motion, unequal beam.
Coloured original and reverse general view of the engine and boilers, plan of the engine and boilers; reverse plan and sections of the engine house, boilers and chimney, drawings of the cistern; beam, parallel motion, plan, side view and cross-section of the inner end of the beam, cast iron gudgeon for the top of the little perpendicular links, top of the pump link, parts of the pump parallel motion - reverse drawings; working gear - coloured original and reverse front and side views; parallel motion - coloured original drawing; stops, bolts etc. for the top of the pump rod - reverse drawing; top of the pump rod, plan and side view of the end of the working beam - coloured original and reverse drawings; plan of the engine house and boiler marked "With Mr. Laing's letter of 26 Aug. 1803". All the drawings except the last item bear letter codes.
Original Portfolio or 'Book' No. 490. Catalogue of Old Engines p. 292.
For Gilbert Meason of Edinburgh and partners. Wanlockhead lead mine, near Dumfries.
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