More Tennis Trifles (1931)

Filmed at Birmingham. Making Tennis balls is an allround matter from the early say it with rubber C, U of a machine which punches a holes from rubber. C, U of rubber circles being put into metal moulds. A machine then presses two metal moulds together. Various C, Us of the moulds being taken off the tennis balls. (A little gasforming chemical for the C, U of woman picking up little white tablets with tweezers and weighing them. C, U of the tablets being ground down with a pestle and mortar then the powder is placed into the rubber tennis ball halves. C, U of woman rubbing tennis ball halves in glue then pressing top halves onto bottom halves. The heat of the next operation changes the inside powder into gas A metal frame holding many tennis balls is lowered into a vat of hot liquid. Now, the extra rubber cover High angle shot of women working at benches. C, Us of women applying rubber to the outside of the balls. And every other stage a test to ensure accurac