One of Keaton's trademarks was mechanical comedy, displaying his fascination for engineering and gadgets - mechanical objects used in gags and may take on a dual purpose.
e.g. in High Sign- the household furniture and parts take on additional functions such as the floor having a trap door.
e.g In The Scarecrow - all the mechanical objects in the house have dual functions, being exploited for comedic effect, such as the gramophone player which also functions as an oven.
e.g. In The High Sign - the house resembles a dolls house, with the screen split into four in perfect symmetry, which enables the audience to witness events in each room simultaneously.
Objects and props in Keaton's films can function as characters and appear to take on a life of their own.
-> evident in the houses in One Week, The High Sign and The Scarecrow which all seem to come to life , esp. One Week where it seems to conspire against Keaton and his bride - the hurricane causes the house to revolve manically.
Keaton utilises his small frame to make objects seems more imposing than in reality e.g the merry-go-round or train in The High Sign, likewise, the ever-expanding newspaper that engulfs Keaton for absurd comedic affect.