1the second is usually a foot and
three digits high, the third a foot and two
digits, and the lowest a foot and one digit. In this buddle is generally washed
that metalliferous material which has been sifted through the large sieve
into the tub containing water. This material is continuously thrown with
an iron shovel into the head of the buddle, and the water which has been
let in is stirred up by a wooden scrubber, until the buddle is full, then the
cross-boards are taken out by the washer, and the water is drained off; next
the metalliferous material which has settled in the compartments is again
washed, either on a short strake or on the canvas strakes or in the jigging
sieves. Since a short strake is often united with the upper part of this buddle,
a pipe in the first place carries the water into a cross launder, from which it
flows down through one little launder into the buddle, and through another
into the short strake.
digits, and the lowest a foot and one digit. In this buddle is generally washed
that metalliferous material which has been sifted through the large sieve
into the tub containing water. This material is continuously thrown with
an iron shovel into the head of the buddle, and the water which has been
let in is stirred up by a wooden scrubber, until the buddle is full, then the
cross-boards are taken out by the washer, and the water is drained off; next
the metalliferous material which has settled in the compartments is again
washed, either on a short strake or on the canvas strakes or in the jigging
sieves. Since a short strake is often united with the upper part of this buddle,
a pipe in the first place carries the water into a cross launder, from which it
flows down through one little launder into the buddle, and through another
into the short strake.
An ordinary strake, so far as the planks are concerned, is not unlike the
last two. The head of this, as of the others, is first made of earth stamped
down, then covered with planks; and where it is necessary, earth is
thrown in and beaten down a second time, so that no crevice may remain
through which water carrying the particles of metal can escape. The water
ought to fall straight down into the strake, which has a length of eight feet
last two. The head of this, as of the others, is first made of earth stamped
down, then covered with planks; and where it is necessary, earth is
thrown in and beaten down a second time, so that no crevice may remain
through which water carrying the particles of metal can escape. The water
ought to fall straight down into the strake, which has a length of eight feet
A—HEAD B—STRAKE. C—TROWEL. D—SCRUBBER. E—CANVAS
F—ROD BY
WHICH THE CANVAS IS MADE SMOOTH.
WHICH THE CANVAS IS MADE SMOOTH.
zoom in
zoom out
zoom area
full page
page width
set mark
remove mark
get reference
digilib