1) Scale 2) Weighing machine 
• (n.) A weighing machine on which loaded carts may be weighed; platform scales.
A place where wagon loads of railway carriages can be weighed. This would allow the assessment of the goods for transport costs.
Known as a Weigh Station in the US. A vehicle weighing system which consists of a metal plate set into a road which vehicles, usually trucks with loads, are driven onto to be weighed to check if they are overladen
Weigh'bridge` noun A weighing machine on which loaded carts may be weighed; platform scales. 
[n] - platform scale flush with a roadway for weighing vehicles and cattle etc
noun platform scale flush with a roadway for weighing vehicles and cattle etc