The entire locomotive was placed on two bogies, enabling negotiation around tight curves, while the slab-sided body could be cleaned by a labour-saving carriage washer.
His passion and eye for innovation and inventions resulted in a series of design improvements and labour-saving combinations, including the self-acting mule headstock.
They are labour-saving devices or shortcuts intended to accelerate or make more rigorous the search for forms by providing logical reinforcement to induction.
These were popular with hairdressers as a labour-saving device, and with manufacturers, as they were only used once and some 20 would be used for a head of hair.
The rise in industrial efficiency which characterized development in developed countries has occurred as a result of labour-saving technological improvements.
