Caldwell automatic microtome, Cambridge, England, 1884

Made:
1884 in Cambridge
maker:
The Cambridge Scientific Instrument Company

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Caldwell automatic microtome, made by the Cambridge Scientific Instrument Co. in 1884. The Caldwell was the first
Science Museum Group Collection
© The Board of Trustees of the Science Museum

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

Caldwell automatic microtome, made by the Cambridge Scientific Instrument Co. in 1884

The Caldwell was the first automatic microtome to cut specimens of animal and plant tissues into continuous ribbons. It was said to revolutionise histology as specimens could now be cut easily at a hundred slices per minute by hand and double that by motor. The specimen was covered with paraffin to maintain its shape and structure and passed up and over the knife. The long black band at the end received the cut ribbons in consecutive order and all the same side up. Thickness could be varied. The ribbon was cut, mounted, stained, and examined under the microscope.

Made by Cambridge Scientific Instrument Co, this microtome was invented by William Caldwell (1859-1941) and designed by Richard Threlfall (1861-1932), a physicist.

Details

Category:
Microscopes
Object Number:
1959-164
Materials:
brass, fabric, metal, spring, string, wood
type:
microtome
credit:
University College London
status:
Permanent collection

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