Noble expanding lathe mandrel
- Made:
- 1887-111 in Colchester
- maker:
- Britannia
Noble expanding lathe mandrel, by the Britannia Co., Colchester, 1887
This lathe mandrel is adjustable so that it can be set to fit various diameters of bore, by means of three wedges, whose outer edges form parts of a cylinder, sliding in dovetail grooves cut on the enlarged central portion of the mandrel.
The bottoms of the grooves are inclined at the same angle as the wedges, so that a nut, which forms part of the lathe carrier, forces the wedges along until they fit the bore of the article to be turned. The mandrel is released by screwing up a nut on a left hand thread at the other end. The diameter of this specimen ranges for 1 5/8 in to 1 7/8 in.
Details
- Category:
- Hand and Machine Tools
- Object Number:
- 1887-111
- Materials:
- cast iron and steel (metal)
- type:
- lathe mandrel
- credit:
- Brittania Co.
