. The Civil engineer and architect's journal, scientific and railway gazette. Architecture; Civil engineering; Science. In our last month's Journal we stated a new machine for hoist- ing bricks, &r., was to he seen at Prince Albert's Gate, Knightsbridge; we are now enabled to give our millers a rough sketch of the machine, together with a description which will explain its operation. Description of the Machine.âThe main part of (he machine, A, con- sisting of the gearing to set the machine in motion, rests upon the ground. The second part is a trestle, which may be placed upon the s
. The Civil engineer and architect's journal, scientific and railway gazette. Architecture; Civil engineering; Science. In our last month's Journal we stated a new machine for hoist- ing bricks, &r., was to he seen at Prince Albert's Gate, Knightsbridge; we are now enabled to give our millers a rough sketch of the machine, together with a description which will explain its operation. Description of the Machine.âThe main part of (he machine, A, con- sisting of the gearing to set the machine in motion, rests upon the ground. The second part is a trestle, which may be placed upon the scaffolding of the bricklaj ers, as it F; in the upper pari of this trestle is an indented wheel, 13, which corresponds perpendicularly with a similar wheel, attached to the principal body of the machine, resting on the ground. Passing round these two wheels is an endless iron chain, which is put in motion by one or several men, who turn the handle of the machine, A, consisting of a pinion-wheel working into a large toothed wheel, ou the axis of which is an indented wheel, round which an endless chain passes, and also round a corresponding wheel at the side, of the one at the foot of the vertical chain; the latter is set in motion when the wheel A revolves, together with the endless chain just described, over the indented wheels at C and E, by which the chain operates its rotation. On the. side of the chain as- cending, the workmen attach their hods full of materials, by means of a hook fixed in the hod, as at B, and others detach them, as at F, to carry them to the bricklayers on the scaffolding. The empty hods are attached to the chain on the opposite side, as at G, ami descend to the ground, where they are detached, as at H. The chain may be lengthened and shortened as necessary. When a story is added to the scaffolding, the trestle is placed upon the new story, and the chain lengthened as required. At the top is a screw for tightening or relaxing the chain, as occasion may
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