1for each separate
plank is placed outside of the posts.
The third is at the
same distance from the fourth, but the second is one foot and three digits
distant from the third. In the same manner the rest of the eight planks are
arranged at intervals, the fifth from the sixth and the seventh from the eighth
are at the same distances as the first from the second and the third from the
fourth; the sixth is at the same distance from the seventh as the second
from the third.
same distance from the fourth, but the second is one foot and three digits
distant from the third. In the same manner the rest of the eight planks are
arranged at intervals, the fifth from the sixth and the seventh from the eighth
are at the same distances as the first from the second and the third from the
fourth; the sixth is at the same distance from the seventh as the second
from the third.
Two planks support one transverse plank six feet long, one foot wide, one
palm thick, placed at a distance of three feet and two palms from the back
posts. When there are six of these supporting planks, on each separate one
are placed two bellows; the lower bellows-boards project a palm beyond
them. From each of the bellows-boards an iron ring descends through a hole
in its supporting plank, and a wooden peg is driven into the ring, so that the
bellows-board may remain stationary, as I stated above.
palm thick, placed at a distance of three feet and two palms from the back
posts. When there are six of these supporting planks, on each separate one
are placed two bellows; the lower bellows-boards project a palm beyond
them. From each of the bellows-boards an iron ring descends through a hole
in its supporting plank, and a wooden peg is driven into the ring, so that the
bellows-board may remain stationary, as I stated above.
The two bellows communicate, each by its own plank, to the back of a
copper pipe in which are set both of the nozzles, and their ends are tightly
copper pipe in which are set both of the nozzles, and their ends are tightly
A—FRONT SILL. B—BACK SILL. C—FRONT POSTS. D—THEIR
SLOTS. E—BEAM
IMPOSED UPON THEM. F—HIGHER POSTS. G—THEIR SLOTS. H—BEAM IMPOSED UPON
THEM. I—TIMBER JOINED IN THE MORTISES OF THE POSTS. K—PLANKS. L—TRANSVERSE
SUPPORTING PLANKS. M—THE HOLES IN THEM. N—PIPE. O—ITS FRONT END. P—ITS
REAR END.
IMPOSED UPON THEM. F—HIGHER POSTS. G—THEIR SLOTS. H—BEAM IMPOSED UPON
THEM. I—TIMBER JOINED IN THE MORTISES OF THE POSTS. K—PLANKS. L—TRANSVERSE
SUPPORTING PLANKS. M—THE HOLES IN THEM. N—PIPE. O—ITS FRONT END. P—ITS
REAR END.