Dual pressure take-up apparatus and system for dual belt conveyor-elevator
US4007826A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 2, 1976 |
| Grant date | Feb 15, 1977 |
| Priority date | — |
| Expiry date | Apr 2, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G23/44
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A conveyor apparatus for elevating loose bulk material from one level to another, as in self-unloading ships, and more particularly a dual belt conveyor-elevator having a relatively long horizontal feed section, and further including a belt take-up apparatus and system including a normal pressure mode for tensioning the outer belt of the dual belt conveyor-elevator under normal operating conditions, the belt take-up apparatus and system also including a high pressure mode which is connected in tensioning relation to the outer belt of the dual belt conveyor-elevator upon loss of motive driving power to the dual belt conveyor-elevator. The high pressure mode is capable of substantially immediately taking up slack which develops in the outer belt, particularly in the horizontal feed portion thereof, with consequent prevention of spillage of load material, when the driving power for the dual belt conveyor-elevator is interrupted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.