Thematic Auction in Geneva:The Evolut...
Hotel Noga Hilton, Geneva, Nov 16, 2002
LOT 178
Unsigned, Swiss, circa 1920.Fine brass and steel direct driven roun-ding-up tool.
CHF 2,800 - 3,200
EUR 1,500 - 2,100
Sold: CHF 3,910
C. Pivoted cutter holder with small crank lever, vertical position controlled by two stop screws, horizontal slide controlled by a knurled knob, wooden base.Dim. 20 x 18 cm.Very good condition.
Notes
This type of re-cutting engine, designed for quickly decreasing the diameter of a wheel, retaining the module and the shape, with automatic entry into a new tooth, was invented by Louis Carpano from Cluses and patented on January 9, 1889. Direct driven ones are rare.