Automatic Mortar Grinder
Since the results obtained with hand grinding are neither reproducible nor reliable, most laboratories work with automatic mortar grinders. Grinding time and pressure of the mortar can be adjusted and fixed, saving time and labor.
The first automatic Mortar Grinder was invented by F. Kurt Retsch in 1923 – the "Retschmill".
Read more about this topic: Mortar And Pestle
Famous quotes containing the words automatic, mortar and/or grinder:
“Predictions of the future are never anything but projections of present automatic processes and procedures, that is, of occurrences that are likely to come to pass if men do not act and if nothing unexpected happens; every action, for better or worse, and every accident necessarily destroys the whole pattern in whose frame the prediction moves and where it finds its evidence.”
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“For the first time I’m content to see
What poor mortar and bricks
I have to build with, knowing that I can
Never in seventy years be more a man
Than now a sack of meal upon two sticks.”
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“If we complain about the tune, there is no reason to attack the monkey when the organ grinder is present.”
—Aneurin Bevan (1897–1960)