Perforating machine
A perforating machine is a machine for piercing or perforating printed matter that is to be made easily separable, such as. B. Postage stamps .
The piercing apparatus consists of fine steel punches that act on steel sleeves, which knock out the paper particles sharp and smooth and let them fall through the sleeves, or of toothed lines that cut the paper without removing parts from it.
The perforating machine is put into operation by hand or foot movement, with steam or electrically, whereby it can be provided with a fan to remove the knocked out paper particles.
Perforating machines, which work in a similar way to sewing machines and in which a single rising and falling pin punches the holes while the paper is automatically pushed on by the machine, are only useful when there is little need.
Perforating machines are also used in the film industry . Modern film punches run at 20 to 60 strokes per second. They are equipped with a suction device to remove the dust and slugs generated during perforation. Continuously acting devices are operated at speeds of up to 450 meters per minute.
Manufacturers of film perforating machines were or are
- Légé & Co. in London
- Newman & Guardia in London
- William Butcher & Sons in London
- Nicholas Power, Brooklyn, NY
- Charles Moisson for the Lumière family in Lyon
- Alban Lapipe, Paris
- Pierre-Victor Continsouza & René Bünzli for Pathé, Paris
- Alfred Darling in Brighton
- Williamson Cinematograph Co., London
- Debrie in Paris
- Bell & Howell in Chicago
- Eastman-Kodak in Rochester, NY
- Karl August Geyer in Berlin (after Bell & Howell and Prévost)
- Kurt Schimpf, Berlin (Williamson copy, no patent)
- Agfa -MABA in Wolfen
- Fuji Photo Films in Tokyo
- Konica in Tokyo
- Breitwieser & Keller, Ober-Ramstadt, today BUKO in Fränkisch-Crumbach (after Bell & Howell)
- Etablissements Lucien Prévost, Paris
- John Kruesi at Edison, West Orange
- Henri Joly in Paris
- Henry W. Joy for Charles Urban
- Eberhard Schneider in New York City
- DuPont, Wilmington
- Agfa-Gevaert, Mortsel
- Friedrich Jürgen Ellinghaus, Leverkusen
