Cast Steel Chair for Firth's Patent Steel Prop
Cast steel chair used to cap Firth's patent steel prop, incorporates wedge for adjustment in place and trip device operated by pull applied from safe distance to allow release of prop
Details
- Category:
- Mining & Ore Dressing
- Object Number:
- 1933-382 Pt2
- Materials:
- steel
- Measurements:
-
overall: 210 mm x 330 mm x 170 mm,
- type:
- chair
- credit:
- City & Guilds Engineering College