| Description | Mints and Mint Engines (32 items).
Departments, Machinery & Apparatus:
[These drawings were all made at Soho, and show the various departments or "apartments" of the mint and some of the machinery and apparatus.]
Partially coloured reverse plan of the oil-shaking and milling and annealing apartments, sections of annealing furnace and oil-shaking and milling apartments, plan of the cutting out room, section of the cutting out room, plan of the coining room, plan and sections of the die annealing and multiplying apartments, longitudinal section of the coining room, plan and section of the muffle and boiler for blanching and pickling and cross-section of the coining room (with drawing LXM, corrected cross-section of the 10 horse engine on the same sheet), plans of the shafts and tunnels from the 24 and 10 horse engines, view of the vacuum connecting pipes, cutting out frame and fly wheel etc. (with tracing). All the drawings bear letter codes.
Also the following uncoded drawings, rough sketches etc.: coloured drawings of cast iron columns for inner veranda, silver melting house and rolling mill; cutting out press connection with pump; plan of the vacuum connecting pipes and section of the exhausting pump and pipes - 2 sheets of press copy drawings; sketch of coining machinery "as executed"; rough plan of rolling mill and annealing furnaces; 2 shaded plans of the rolling mill (sent to Soho?); coloured plan of the copper melting house, plan of the silver melting apartment with figures for the floor spaces of the refineries and melting rooms taken from a memorandum by Capt. Hawkins.
Plans of the Mint etc.:
[These drawings are plans of the whole mint complex. Most were sent to Boulton Watt & Co. by the East India Co.]
Copy of Proposed Plan for Bombay Mint, sent from East India House.
This plan is very similar to the "Plan proposed by the East India Co. for a Mint at Calcutta", circa Jan. 1821 [see Portfolio 5/707d] and shows 2 30 horse engines either side of the rolling mill.
Proposed Plan of the Bombay Mint.
Marked "Not Correct". Drawn on squared paper, with dotted lines marking the progress of the metals through the various departments.
Proposed Plan of the Bombay Mint.
Marked "Not Correct". Copy of the above plan with slightly less detail, and some pencil amendments.
[Plan of the mint.]
Untitled, but similar to the 2 plans below, with various pencil amendments.
Plan of the Bombay Mint.
"Designed by Capt. Hawkins" has been pencilled under the title. The plan bears various pencil amendments.
Plan of the Bombay Mint.
Tracing of the above plan.
Plan showing the line of aqueduct proposed by Capt. Hawkins to the New Mint; and the aqueduct proposed by the Committee. John Hawkins, New Mint Office, 14 Nov. 1825.
Marked "Duplicate". Coloured plan of part of Bombay, the harbour etc., with the lines of the proposed aqueducts marked on.
No. I - Elevation of the Plan and Plan of the Pipe for bringing the water to the new Mint as proposed by the Committee. [Circa Nov. 1825].
Coloured plan and elevation made in the Chief Engineer's office.
No. II - Copy of the Plan proposed by the Committee for bringing water to the new Mint. [Circa Nov. 1825.]
Plan made in the Chief Engineer's Office. Similar to the "Plan showing the line of aqueduct…", but does not show Hawkins' proposed aqueduct.
Original Portfolio or 'Book' Nos. 768 & 769. Catalogue of Old Engines p. 160.
For the Bombay Mint. The Bombay Mint used some of the machinery from the old Soho Mint [see Portfolio 5/714]. The Bombay Mint was expanded in 1860 and again in 1863.
See also: Incoming Correspondence, Portofolio 6/13, 7/8 (later mint machinery etc.).
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