University of Leeds. Library · London : Fleetway House · leaf 327
this type of chuck all move together radially. They arc of two patterns, outside and inside. The outside jaws are used to hold rings and disks for facing, boring, as in Fig. 5, or turning portions which are clear of the … METAL TURNING. Fig. 5. (Top) Internal boring, show- ing work held in a three-jaw chuck. Fig. 6. Face plate work, showing a small piece of work clamped to plate. Fig. 7. (Bottom) Roughing down a mandrel with a swan-necked tool. adopted for turning pins, bars and shafts. The Mandrel. In employing the…
Handicraft · Dwellings · Needlework
Internet Archive · University of Leeds Library · Public domain (published before 1931). Free to use for anything.