Agricola, Georgius
,
De re metallica
,
1912/1950
Text
Text Image
Image
XML
Thumbnail overview
Document information
None
Concordance
Figures
Thumbnails
Page concordance
<
1 - 30
31 - 60
61 - 90
91 - 120
121 - 150
151 - 180
181 - 210
211 - 240
241 - 270
271 - 300
301 - 330
331 - 360
361 - 390
391 - 420
421 - 450
451 - 480
481 - 510
511 - 540
541 - 570
571 - 600
601 - 630
631 - 660
661 - 679
>
Scan
Original
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
<
1 - 30
31 - 60
61 - 90
91 - 120
121 - 150
151 - 180
181 - 210
211 - 240
241 - 270
271 - 300
301 - 330
331 - 360
361 - 390
391 - 420
421 - 450
451 - 480
481 - 510
511 - 540
541 - 570
571 - 600
601 - 630
631 - 660
661 - 679
>
page
|<
<
of 679
>
>|
<
archimedes
>
<
text
>
<
body
>
<
chap
>
<
pb
pagenum
="
284
"/>
<
figure
number
="
152
"/>
<
p
type
="
caption
">
<
s
>A—MORTAR. B—UPRIGHT POSTS. C—CROSS-BEAMS. D—STAMPS. E—THEIR HEADS.
<
lb
/>
F—AXLE (CAM-SHAFT). G—TOOTH OF THE STAMP (TAPPET). H—TEETH OF AXLE (CAMS).
<
lb
/>
can remove with a shovel the fine sand, and likewise the coarse sand and
<
lb
/>
broken rock, into which the rocks have been crushed; this board can be
<
lb
/>
lowered, so that the mouth thus being closed, the fresh rock thrown in may
<
lb
/>
be crushed with the iron-shod stamps. </
s
>
<
s
>If an oak block is not available,
<
lb
/>
two timbers are placed on the ground and joined together with iron clamps,
<
lb
/>
each of the timbers being six feet long, a foot wide, and a foot and a half thick.
<
lb
/>
</
s
>
<
s
>Such depth as should be allowed to the mortar, is obtained by cutting out the
<
lb
/>
first beam to a width of three-quarters of a foot and to a length of two and a
<
lb
/>
third and one twenty-fourth of a foot. </
s
>
<
s
>In the bottom of the part thus dug
<
lb
/>
out, there should be laid a very hard rock, a foot thick and three-quarters of a
<
lb
/>
foot wide; about it, if any space remains, earth or sand should be filled in
<
lb
/>
and pounded. </
s
>
<
s
>On the front, this bed rock is covered with a plank; this
<
lb
/>
rock when it has been broken, should be taken away and replaced by
<
lb
/>
another. </
s
>
<
s
>A smaller mortar having room for only three stamps may also be
<
lb
/>
made in the same manner.</
s
>
</
p
>
<
p
type
="
main
">
<
s
>The stamp-stems are made of small square timbers nine feet long and
<
lb
/>
half a foot wide each way. </
s
>
<
s
>The iron head of each is made in the following </
s
>
</
p
>
</
chap
>
</
body
>
</
text
>
</
archimedes
>