noun
large beam balance; weighbeam
A traditional weighing device consisting of a long beam with a pan or hook at one end and a counterweight that slides along the beam. Used historically for heavy goods. The term is now largely historical or encountered in descriptions of old tools.
江戸時代の市場では、杠秤で米俵の重さを量っていた。
In Edo-period markets, they weighed rice bales with a large beam balance.
この資料館には、昔使われていた杠秤が展示されている。
This museum displays a large beam balance that was used in the past.