Part of a compression pump use
Part of a compression pump used by James Joule, c.1860. The purpose of this pump was to overcome' the abrasion which takes place when metal rubs against metal, without an 'intermediate lubricator', by eliminating the usual packing and increasing the depth of the piston.
- Scientific Instruments & Research
- Object Number:
- compression pump
- Gift of University of Manchester Institute of Science & Technology
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