| 摘要 |
<p>A downward tapering container box (1) has an elongated discharge aperture wide enough to cover the blocks. This is made up from a front and a rear edge plate (7, 8), the rear one being adjoined by a rear smoothing plate (4), while the front one protrudes above the rear one by the height of the desired mortar layer. Near the aperture there is a toothed roller (3), with spikes protruding above the front plate. At two or more intervals in front of the front plate there are also protruding running rollers (5). To one side of the aperture there is a downward protruding closure plate (6), with length matching the height of the building blocks.</p> |
