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Record Details

Binocular Microscope, by Cooke, Troughton & Simms, York, c.1950

Inventory Number: 27568
Object Type: microscope
Place Created: York England United Kingdom Europe
Subject Classification(s): Microscopy  
Accession Number: 1996-20
Brief Description: The horseshoe foot and short pillar carry the curved limb on trunions. A locking lever on the stand holds the inclination of the limb. The optical components are mounted on a housing that moves on the limb on a rack and pinion for coarse focusing. A graduated screw on the housing operates the fine focus. Four objectives are held in a rotating changer. The eyepieces push into tubes in the binocular head. These slide to adjust the inter-ocular distance and the right hand eyepiece can be focused independently. The stage is mechanical, moved by rack and pinions. Two vernier scales show the degree of movement in each direction. Specimens are held on the stage plate between two sliding brackets. The substage condenser can be focused, aligned and is fitted with an iris diaphragm. The plano-concave mirror is set in a horseshoe mount on the lower end of the limb. The instrument has a wooden carrying case that also holds two eyepieces and an objective in a can.
Primary Inscriptions: Cooke, Troughton and Simms Ltd. York England. Pat No 467926 Pat No 525970 M20714
Provenance: Presented by the Metrology Division, National Physical Laboratory, in 1996. RMS-MHS Collection of Twentieth-Century Microscopes.
Collection Group: RMS-MHS Collection
Material(s): Metal
Height Width Depth Diameter Unit
350 140 mm

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