Collection

Mining transit theodolite, 1871-1900

Made:: 1871-1900 in Derby

maker:: John Davis and Son

5-inch Hoskold type mining transit theodolite with stand by John Davis & Son, Derby, England, 1871-1900.

Details

Category:: Surveying

Object Number:: 1946-199

Measurements:: overall: 190 mm x 325 mm x 310 mm, 3.59kg

type:: transit theodolite

credit:: Imperial College of Science & Technology

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Parts

Triod for mining transit theodolite, 1871-1900

Triod for mining transit theodolite, 1871-1900

Tripod for 5 inch Hoskold mining transit theodolite by John Davis & Son, Derby, England, 1871-1900

Object Number:: 1946-199 Pt1

type:: components , tripod and transit theodolite

Image ©: The Board of Trustees of the Science Museum

Part of mining transit theodolite, 1871-1900

Part of mining transit theodolite, 1871-1900

5-inch Hoskold mining transit theodolite, by John Davis & Son, Derby, England, 1871-1900

Measurements:: overall: 320 mm x 260 mm x 180 mm, 5.2kg

Materials:: steel (metal) , glass , silver (metal) , brass (copper, zinc alloy) and alcohol

Object Number:: 1946-199 Pt2

type:: instrument component and transit theodolite

Image ©: The Board of Trustees of the Science Museum

Stand for mining transit theodolite, 1871-1900

Stand for mining transit theodolite, 1871-1900

Stand for 5-inch Hoskold mining transit theodolite in case, by John Davis & Son, Derby, England, 1871-1900.

Measurements:: overall: 100 mm 125 mm, 1.79kg

Materials:: brass (copper, zinc alloy) and iron

Object Number:: 1946-199 Pt3

type:: instrument component and transit theodolite

Image ©: The Board of Trustees of the Science Museum

Case for mining transit theodolite, 1871-1900

Case for mining transit theodolite, 1871-1900

Case for 5-inch Hoskold mining transit theodolite by John Davis & Son, Derby, England, 1871-1900

Measurements:: overall: 190 mm x 325 mm x 310 mm, 3.59kg

Materials:: mahogany (wood) , felt , brass (copper, zinc alloy) , steel (metal) and paper (fibre product)

Object Number:: 1946-199 Pt4

type:: instrument component and instrument case