Apparatus for forming adobe blocks
US4557681A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 1982 |
| Grant date | Dec 10, 1985 |
| Priority date | — |
| Expiry date | Apr 14, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB28B5/08
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A rotary table is provided defining at least three peripherally spaced open-ended vertically extending sleeve-type cavities spaced equally radially outwardly from and about the axis of rotation of the table and a soil receiving chamber is stationarily supported and opens downwardly in a location with which the upper portions of the cavities are successively closely registrable from beneath upon angular displacement of the table. The chamber is disposed at a first stationary station and second and third stationary stations are also defined about the axis in position for registry with second and third cavities of the table when the first cavity thereof is registered with the soil receiving chamber. The second station has a hydraulic ram supported therefrom for downward displacement into and upward retraction from a rotary table cavity registered therewith from beneath and the third station has a hydraulical ram mounted downwardly extendible and upwardly retractable ejection head supported therefrom for downward displacement into and upward retraction from the rotary table cavity registered therewith. The rotary table is supported from a frame including a spring extended and hydraulic…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.