M/S of man cycling along road in front of park (Hyde Park). He stops his bicycle by the curb and feels his front tyre - it's soft. C/U of device attached to wheel. The invention allows deflated tyres to be pumped up as the cyclists cycles. More shots of man cycling.
Demonstration of new anti theft device - throw a brick through a window and a shutter falls down.
Inventor tries out his new deep sea diving suit.
Footage of cars crashing into each other to test strength of new bumper.
A glider is seen - various shots of the plane and its creator.
Mr C. W. Roberts invents a periscope which enables him to look at all directions.
An Australian designer shows off his latest gas powered model aeroplane.
An item showing an economical motorcycle which runs off charcoal. Australia.
Footage of wardrobe with wheels being moved. London.