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Hemp Hurds as Paper-Making Material - United States Department of Agriculture, Bulletin No. 404 by Lyster Hoxie Dewey;Jason L. Merrill
page 6 of 40 (15%)
as a fair average.


=HURDS AVAILABLE FROM MACHINE-BROKEN HEMP.=

Hemp hurds are available only from hemp which is broken by machines,
when the hurds may be collected in quantity in one place (figs. 1 and
2). Most of the hemp in Kentucky is still broken by hand brakes. These
small brakes are moved from shock to shock, so that the hurds are
scattered all over the field in small piles of less than 50 pounds each,
and it is the common practice to set fire to them as soon as the brake
is moved. It would be difficult to collect them at a cost which would
permit their use for paper stock.

Where machine brakes are used, the hemp stalks are brought to the
machine as grain is brought to a thrashing machine, and the hurds
accumulate in large piles, being blown from the machine by wind
stackers.

Machine brakes are used in Wisconsin, Indiana, Ohio, and California, but
to only a limited extent in Kentucky. Five different kinds of machine
brakes are now in actual use in this country, and still others are used
in Europe. All of the best hemp in Italy, commanding the highest market
price paid for any hemp, is broken by machines. The better machine
brakes now in use in this country prepare the fiber better and much more
rapidly than the hand brakes, and they will undoubtedly be used in all
localities where hemp raising is introduced as a new industry. They may
also be used in Kentucky when their cost is reduced to more reasonable
rates, so that they may compete with the hand brake. Hemp-breaking
machines are being improved and their use is increasing. The
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