Very large cast iron scale Béranger in Lyon of range 60 kg 19th century

Very large cast iron pendulum scale of almost 1 meter long from Béranger in Lyon, 19th century
Capacity of 60 kg
Moving shape with its original brass plates punched and very thick
Very good general condition
Works perfectly
Its interior system is in iron
The balance of the weighing is decorated with fantastic birds in bronze
Mark on the bottom in hollow : Béranger et Cie à Lyon
Large simplified balance-pendulum, of mark Béranger (datable about 1856-1857)
Very original and really splendid scale
Rare object on the market
Brushed and waxed
The cast iron has kept its original dark green patina which is very rare
Plates in perfect condition
Very precise scale
h : 19,5 cm
length : 96,8 cm
width : 38,9 cm
d trays : 40 cm
tray thickness : 3,5 cm
For information :
Principle of the Béranger pendulum scales: the main beam is with equal arms, connected to two symmetrical annexed levers located below and called "transmissions". Each basin is supported at the same time by one end of the beam and by one end of the counterpart transmission and remains horizontal thanks to a judicious calculation of the ratio between the arms of lever.
This is the first equal arm balance system with compound beams invented to overcome the defects of the Roberval. The first patent was issued on July 14, 1845 to the great builder Joseph Béranger from Lyon. Thereafter this system knew 2 variants and obtained 5 admissions:
- balance pendulum (27/03/1848),
- simplified pendulum balance (08/09/1854),
- low balance Catenot-Béranger (24/05/1864),
- simplified Béranger balance (Trayvou) called "à couteaux" (17/04/1889),
- Béranger balance with four supports (09/05/1902).
The ranges marketed are generally between 1 kg and 60 kg. Most of the models are with two parallel arms.
The original pendulum scales are mounted on a closed box. Simplified pendulum scales are most often open-base, cast iron (straight or violin shape). The balance index is made of horizontal lugs in the shape of birds or chimeras attached to the basin supports.
Large and stable, these scales were appreciated for their high capacities. The original pendulum scales were frequently used in stores as prestigious counter scales thanks to the existence of luxury models. The simplified open-base pendulum scales
were rather intended for markets.

Ref: YK1WGV5U4G