Soviet Medical Encyclopedia

Shaking Apparatus

Chemistry & Physics, Microbiology

Also known as: Shaker, Laboratory Shaker, Schüttel-Apparat

Historical document, translated for reference. It reflects medical knowledge of the 1920s–30s and is not medical advice.

Summary

Shaking apparatus are mechanical devices used to agitate liquids to produce uniform emulsions and suspensions, grind dense masses, prepare extracts, and separate bacterial flagella or cell walls. Various models exist, typically driven by electric or water motors with eccentric or oscillating motion platforms, and some incorporate heating devices with thermostats for temperature-controlled shaking.

Encyclopedia article (1928–1936)

SHAKING APPARATUS, devices for the mechanical shaking of liquids in order to obtain uniform emulsions and suspensions. Shaking in shaking apparatus is also used for grinding dense masses, for preparing extracts, for separating flagella from microbial bodies or destroying the bacterial membrane, and the like. There are a number of models of shaking apparatus. Basically, the device consists of a sturdy base with a massive stand attached to it, on which a movable frame with sockets for flasks or bottles is held. The apparatus is driven by an electric or water motor. The frame for shaking various objects has a circular shape and moves eccentrically around its axis; it can be in the form of a gondola, swinging, suspended or sliding back and forth on runners or rollers; the frame can have a casing of some other shape in which tightly

Shaking Apparatus: figure 1 from the 1928–1936 encyclopedia article

Figure 1.

the objects to be shaken are placed (Fig. 1-3). In cases where it is required that the shaking of liquids take place

Shaking Apparatus: figure 2 from the 1928–1936 encyclopedia article

Figure 2.

at a certain temperature, shaking apparatus equipped with a heating device are used. A thermometer passes through the lid of the gondola casing

Shaking Apparatus: figure 3 from the 1928–1936 encyclopedia article

to determine the temperature inside the device. Constant temperature is established using a thermoregulator.

Cite this page

“Shaking Apparatus.” Soviet Medical Encyclopedia. English translation of Bolshaya Meditsinskaya Entsiklopediya, 1st ed. (Moscow, 1928–1936), ed. N. A. Semashko. https://sovietmedicalencyclopedia.pages.dev/article/shaking-apparatus/