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:
“The ruin of the human heart is self-interest, which the American merchant calls self-service. We have become a self- service populace, and all our specious comforts—the automatic elevator, the escalator, the cafeteria—are depriving us of volition and moral and physical energy.”
—Edward Dahlberg (1900–1977)
“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.”
—Philip Larkin (1922–1986)
“If we complain about the tune, there is no reason to attack the monkey when the organ grinder is present.”
—Aneurin Bevan (1897–1960)