e lighter that is to carry it to the point where put under rollers and for a number of times rolled in provided with four pairs of wheels and runs upon it isto be submerged. This apparatus is set in motion tracks of 5°7 meters gauge formed of Vignole rails sup- the same direction, then by… … either to the pistons of the hy- part. As the wedging of the clay Fig. 3—SIDE VIEW OF THE LIFTING APPARATUS. draulic presses that serve to lift goes forward, the molecules of the blocks and that havea maxi- clay become closer attached to mum stroke of 0°4 meter, or to another horizontal ciples as…
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