papermaking machine model
- c1935 in Edinburgh
Model of a Fourdrinier-type papermaking machine made by Bertrams Sciennes Ltd, Edinburgh.
On this machine, pulp or stuff passes through a rotary strainer before flowing over the brest box and onto the moving wire gauze. The wire is shaken from side to side to help interlock the fibres. The water drains out through the wire gauze as it passes over the rollers and more is drawn out by a vacuum suction box.
At the end of the wire the wet sheet of paper is pressed and transferred to a moving felt blanket. This passes under a heavy marble roller to press the paper again. From this press the paper is transferred to another felt blanket and passed over cylinders filled with steam to dry it. To give a smooth finish, the paper may be passed through Calendar rolls before being reeled up.
- Object Number:
- Gift of The National Paper Museum Trust
- Permanent collection
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