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A compound lever balance in steel and brass with a mechanical advantage of 10:1 and 100:1

A compound lever balance in steel and brass with a mechanical advantage of 10:1 and 100:1

1800-1810

platform scale

platform scale

Wooden frame platform weighing machine by John Winsbury and Son

Wooden frame platform weighing machine by John Winsbury and Son

1850-1855

"COEO" Sack holder

"COEO" Sack holder

1898

Sack balance

Sack balance

Early form of platform weighing machine, or counter scales

Platform weighing machine

A compound lever balance in steel and brass with a mechanical advantage of 10:1 and 100:1, c.1800. Scale pan and supports missing

A compound lever balance in steel and brass with a mechanical advantage of 10:1 and 100:1

1800-1810

Personal platform weighing machine to weigh 3cwt, No.W7059

Personal platform weighing machine to weigh 3cwt

1900-1920

Trojan, equal-arm platform balance by C.Morgan & Son, thought to have been impounded by inspectors from the London Borough of Southwark for giving false measure.

Trojan, equal-arm platform balance by C.Morgan & Son

1965-1975

Platform scales by Hunt and Co., London, steelyard type c1950.

Platform scales by Hunt and Co

circa 1950

Platform scale with self indicating scale, by W & T Avery Limited, Bimingham, Steelyard type, 1950-70.

Platform scale with self indicating scale

1950-1970

Platform weighing machine with a dial, operated by a spring balance, to weigh 110lbs

Platform weighing machine with a dial

Platform weighing machine of the steelyard type by Pooley (No.1302) with poise weights for 7,14,28 and 2x56lbs

Platform weighing machine of the steelyard type by Pooley (No.1302) with poise weights for 7

Steelyard type platform weighing machine made by B & G Corderoy of London to weigh up to 5cwt, 1942. The weighing machine carries a broad arrow ordnance mark suggesting that it was made to a government specification.

Steelyard type platform weighing machine

1942