Camden | Science Museum Group Collection

Naval rangefinder designed by Thorsten Nordenfelt in 1884, probably made by C.F. Casella and Company, London. Not signed, no marks. Anodized oval-pattern frame and anodized limb, wooden handle. Three exchangeable alloy scales, one is for an elevation of the eye of 96 feet, from 250-14,000 yards; one of for an elevation of the eye of 96 feet, from 250-20,000 yards; one if for an elevation of the eye of 47 feet, from 200-14,000 yards. No vernier, but two indicating lines; one is moved by a tangent screw, the other is rigid with the index arm. The tangent screw and clamping screw are on the back of the index arm. Index-glass adjustment by lever; adjustment of the horizon glass by screws. No magnifier. Threaded telescope bracket in two parts, fitted for correcting collimation error; perpendicular adjustment by rising-piece and a milled collar. Telescope (190 mm, large objective), erect image; telescope (124 mm, large objective, ocular missing), erect image. No box. This instrument was patented by Thorsten Nordenfelt, no. 16,029 of 1884 (copy in the object file). The instrument is held vertically (like a sextant) to meassure the angle between the horizon and the waterline of a floating body; the distance to the floating body in yards is then read from the scale.

Rangefinder type sextant.

1895-1905

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Print, 'Large Buoy' scene on 'Great Eastern' during the laying of the first Atlantic cable, 1865-1867

Print, 'Launching Buoy' scene on "Great Eastern" during the laying of the first Atlantic cable, 1865-1867

Print, 'Interior Tanks', a scene on 'Great Eastern' during the laying of the first Atlantic cable, 1865-1867

Print, 'Searching Fault' scene on 'Great Eastern' during the laying of the first Atlantic cable, 1865-1867

Lustraphone VR64 ribbon microphone

Four coloured prints, scenes on "Great Eastern" during the laying of the first Atlantic cable, 1865-1867

Lapel badge, The National League for Opposing Woman-Suffrage

Murray keyboard perforator model No. 5-PM, 1914-1916

4oz glass jar containing traces of potassium permanganate, 1909-1950

Camden Town station

Adams Magazine Plate Camera

1lb glass jar containing palmitic acid, 1909-1950

250g glass jar containing ferrous sulphate, Analytical Reagent, 1909-1950

2lb glass jar containing sodium carbonate pure crystals, 1909-1950

250g glass jar containing sodium carbonate anhydrous, 1909-1950

Lapel badge

25g glass jar containing ammonium molybdate, Analytical Reagent, 1909-1950

4oz glass jar containing casein (white light), 1909-1950

1lb glass jar containing chrome alum, 1909-1950

Model of the N.S. "Savannah" (1959)

Operators console and paper holder for Murray keyboard perforator, 1914-1916

Murray keyboard perforator, 1914-1916

Field balance

Model of the N.S. "Savannah" (1959)

RCA Sound Camera

500g glass jar containing sodium bicarbonate, 1909-1950

4oz glass jar containing tin ammonium chloride (stannic), 1909-1950

1lb glass jar containing sodium palmitate

Glass jar containing phloroglucinol

25g glass jar containing iodine, Analytical Reagent, 1909-1950

Field balance by CMS Weighing Equipment Ltd

Diaries of Driver Bill Starvis of Camden

Falloroll folding camera

Field balance by CMS Weighing Equipment Ltd

"Sodastream" Aerated Water Machine by Sodastream Ltd. of Camden Town

High Speed 35mm Cine Camera

Moy Electric Gyroscope Kinematograph Camera

Harpenden sitting height table by CMS Weighing Equipment

Clogher Valley Railway Company Limited works plate

High Speed 35mm Cine Camera

Display case for model of the N.S. "Savannah" (1959)

35mm cine-film loop projector (including facility for magazine)

Falloroll folding camera

Sodastream Soda Maker

Case for a Falloroll folding camera

E & M R works plate

Daily Herald Photograph: Making bagpipes

Rangefinder type sextant.