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Record Details

Horizontal Microscope

preview image for Horizontal Microscope
Inventory Number: 35387
Object Type: Object
Persons: Vincent Chevalier
Date Created:
Place Created: Paris France Europe
Subject Classification(s): Microscopy  
Brief Description: The copper alloy instrument has a horizontal body tube with a Huygenian eyepiece set on the end of an inner tube. This tube can be racked in and out of the body by a mill-edged knob positioned under the body at that end. At the other end of the body is a narrower cylinder on which the nose is mounted, facing down. The cylinder houses the ninety degree prism. The nose has an external thread for objectives. The body tube is set on top of a pillar with a rectangular cross section. The mechanical stage is carried on a sliding sleeve on the pillar. The black glass stage plate is moved by mill-edged screws on each side. A rotating disk with six apertures is mounted below the stage and a glass disk is set on a pivoting mount below the aperture disk. The sleeve holding the stage is attached to a lower sleeve by a screw. Operating this screw moves the stage for fine focusing. A rack and pinion in the lower sleeve moves the whole arrangement for coarse focusing. A concave mirror is mounted on another, lower sleeve. This can also be racked up and down. There is a threaded section at the lower end of the pillar. No base is present.
Primary Inscriptions: "Froment a Paris" on the body
Provenance: Purchased from Dr. Reginald S. Clay with his collection
Collection Group: Clay Collection
Material(s): copper alloy
mirrored glass
Height Width Depth Diameter Unit
293 232 107 mm

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Image with multimedia irn 44643

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