IMPROVED LADDERWAY SYSTEM FOR UNDERGROUND RAISES

An improved ladderway system 30 for an underground raise. The system comprises an elongate tube 32 made of a suitably rigid plastics material and adapted to be received in the raise. The tube has a series of steps 34 moulded into an interior side wall thereof so as to form a ladder extending substan...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	STEVEN PETER DURKIN
Format:	Patent
Sprache:	eng
Schlagworte:	DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL EARTH DRILLING EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS GALLERIES HYDRAULIC ENGINEERING LADDERS LARGE UNDERGROUND CHAMBERS MINING SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS SHAFTS SOIL SHIFTING TUNNELS UNDERGROUND OR UNDERWATER STRUCTURES
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	An improved ladderway system 30 for an underground raise. The system comprises an elongate tube 32 made of a suitably rigid plastics material and adapted to be received in the raise. The tube has a series of steps 34 moulded into an interior side wall thereof so as to form a ladder extending substantially the full length of the tube 32.