Biunial lantern slide projector with lenses and attachements

Made:: circa 1900 in Manchester

Science Museum Group Collection
© The Board of Trustees of the Science Museum

Biunial (two-tier) lantern slide projector with five lens tubes and two lenses, made by J. A. Furnivel, Manchester, c.1890. Originally lit by gas with special mixing valve. One projector sits on top of the other. Screw adjusters on both projectors to focus the beams together.

Details

Category:: Photographic Technology

Object Number:: Y1970.49

Materials:: brass (copper, zinc alloy), wood (unidentified) and glass

Measurements:: overall: 590 mm x 470 mm x 270 mm,

type:: slide projector

credit:: Purchased From Mr. W.C. Russel

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Parts

Lantern Lenses and Attachments

Lenses and lens attachments for a Furnivel biunial lantern projector.

Measurements:: part 3: 110 mm 68 mm,
part 7: 95 mm 70 mm,
part 4: 114 mm 70 mm,
part 2: 93 mm 77 mm,
part 5: 74 mm 85 mm,
part 6: 75 mm 88 mm,
part 1: 93 mm 76 mm,
part 8: 48 mm 224 mm,

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

Object Number:: Y1970.49.1

type:: lens

Biunial lantern slide projector

Biunial (two-tier) lantern slide projector made by J. A. Furnivel, Manchester, c.1890. Originally lit by gas with special mixing valve. One projector sits on top of the other. Screw adjusters on both projectors to focus the beams together.