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Title: FILTERS AND FILTRATION

Reference number: 3878

Date: 1958

Director: [filmed by Frank Marshall]

Production company: Glasgow Scientific Film Society Experimental Group

Sound: silent

Original format: 16mm

Colour: bw

Fiction: non-fiction

Running time: 9.08 mins

Description: Simple examples of filtration; methods of accelerating filtration - fluted filter papers, longer stems, suction devices - micro filtration - industrial filtration - the filter press. Includes animated diagrams.

This film was awarded a principal prize by Mr. Michael Powell in the 1948 Scottish Amateur Film Festival

Shotlist: Opening credits (0.18) The separation of particles from fluids in which they are suspended is usually accomplished by filtration. The home provides some simple examples (0.45) shot of tea strainer and seive in household (1.00) one of the simplest laboratory filters is glass wool, effective only with course material (1.06) brief shot of such a filtration in a lab (1.26) intertitle (1.33) brief shot of filter paper being used in lab (1.44) intertitle (1.51) more paper filtration shots, filtering liquid poured into funnel, received in a beaker (2.32) intertitle (3.37) shots of suction filtration in lab (3.03) intertitle (3.13) more shots suction filtration (3.24) intertitle (3.30) suction filtration (3.50) intertitle (3.57) shot of suction filtration by mouth (4.18) intertitle (4.27) further shots of this process (4.54) intertitle (5.02) shots of a filter press, further intertitles with diagrams of how press works, shots of press being assembled, shots of press in operation (8.55) ecs (9.08)