Claims
- 1. A mould for forming a dual block comprising a bottom plate having an upper face having opposing side edges, a separation line in said upper face of the bottom plate intermediate said side edges, and at least one of said side edges having an elevation above said separation line and a wall extending upwardly from each side.
- 2. The mould of claim 1 further comprising an upper plate having a lower face having side edges, a separation line in said lower face of the upper plate intermediate said side edges, and at least one of said side edges having an elevation above said separation line, the elevation of said at least one of said side edges of said upper plate corresponding to the elevation of said at least one of said side edges of said bottom plate.
- 3. The mould of claim 1 or 2 further including an elongated protrusion extending along said separation line in at least one of said upper face of said bottom plate and said lower face of said upper plate for forming a separation groove in the moulded dual block.
- 4. The mould of claim 1 wherein said separation line is at the centre between said opposing side edges.
- 5. The mould of claim 1 wherein said side edges of said bottom plate further include raised projections for forming indentations in the moulded dual block.
- 6. The mould of claim 1 wherein said side edges of said upper plate further include indentations for forming projections from the moulded dual block for engaging said indentations formed in the moulded block from said projections at said side edges of said upper face of said bottom plate.
- 7. An apparatus for forming a moulded dual block comprising:a mould including a bottom plate having an upper face having opposing side edges, an upper plate having a lower face having opposing side edges, a separation line intermediate said side edges of said upper face of said bottom plate and said lower face of said upper plate, and at least one of said side edges of said bottom plate having an elevation above said separation line, said elevation of said side edges selected to force said dual block to split along said separation line when the dual block is allowed to settle on a flat surface; means for filling the mould with wet concrete; and means for releasing the dual block from the mould.
- 8. The apparatus of claim 7 wherein said side edges of said upper face of said bottom plate are elevated above said separation line on said bottom plate and said side edges of said lower face of said upper plate are elevated above said separation line of said upper plate.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2225292 |
Jan 1998 |
CA |
|
Parent Case Info
This is a Divisional of prior application Ser. No. 09/229,285, filed on Jan. 13, 1999, entitled PROCESS AND APPARATUS FOR THE SPLITTING OF CAST CONCRETE DUAL BLOCKS, and now U.S. Pat. No. 6,226,954.
US Referenced Citations (8)