Double microscope for observing fluid samples - uses capillary tubes in objective planes and fluid driven sample positioning

摘要

The microscope observes fluid samples of different densities. The sample is introduced through an aperture into the closed container and pushed through the junction into the capillary tubes by air or water in the hose. The divided sample passes in to the capillary objective holders which are mounted on the holding plates of each microscope. The samples are displayed on ground glass viewing screens. The samples are positioned under the microscope by operating the valves which release a back pressure to compensate the forwards pressure in the hose.