Hopper gate for self-unloading ships
US4004700A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 22, 1975 |
| Grant date | Jan 25, 1977 |
| Priority date | — |
| Expiry date | Dec 22, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G67/606
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A belt feeder gate for use in self-unloading ships of the type in which the hold of the ship is provided with a hoppered bottom including a plurality of hoppers overlying an unloading conveyor belt moving lengthwise of the ship. Each open hopper bottom is closed by a gate comprising two wheeled gate sections which are movable relative to each other along stationary tracks in a horizontal plane and in a direction laterally of the direction of travel of the underlying unloading conveyor belt. The respective longitudinally opposite wheeled ends of the respective gate sections project in underlying relation to longitudinally spaced "hog ridges" defined by the walls of adjacent hoppers, each "hog ridge" being an inverted V-shaped hollow space defined beneath two upwardly converging oppositely longitudinally inclined walls of two longitudinally adjacent discharge hoppers. The stationary tracks on which the wheeled gates move are also in underlying relation to, although not within, the respective "hog ridges," and the hydraulic rams which impart movement to the gate sections are housed within the "hog ridges." A further feature of the construction is the V-shaped axial cross-section of th…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.