Talk:Fourdrinier machine
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To IP 64.80.135.34, I curious as to why you felt the need to remove the terms "web", "dandy roll" and "couch roll" from the Press Section of the article? I think those are fairly important terms to have in there. Care to explain? TimothyPilgrim 13:19, Jul 30, 2004 (UTC)
Fourdrinier machine
As I am a complete beginner at this extraordinary site, please forgive infelicitous format, etc.
I completely agree that the excision of dandy roll, couch etc is in correct and unhelpful. These terms are still in use today. The dandy roll puts the water mark on the paper and was patented for this purpose in 1839 (Joynson). Its original use had been to produce a finish more like hand made paper. The couch roll is a key item on the machine as it is here that the web is gripped for removal from the wire and transmission to the next section. Couch moreover, being derived from the French "coucher", to lay down, reminds us that until the invention of the machine in principal by Louis Robert in the midst of the French Revolution, paper was hand made and laid on the post (pile of wet sheets ready for pressing, by the "coucheur" or in English. the coucher. The machine is called Fourdrinier after the two brothers of that name who financed its development in England after various shinannigins whereby the design and sample paper was taken to England. Athough preceded by developmental patents, the key patent is 3068 of 1807 to Fourdriniers and Gamble. Bryan Donkin was the key engineer in the development. The first commercial machine, crude as it was, was installed at Frogmore, Hertfordshire in 1804 and this was followed by another experiment and then a better version at Two Waters nearby in 1805. This machine cost £4204.
This early machine made paper was of course rag based. Wood came along much later.
The reference to aligning the fibres is I think also incorrect. The whole point about paper is that the fibres are NOT aligned.
At least the comment in a local history article in Somerset England that the "four Drinier brothers" were involved has been avoided
BGL
Fourdrinier machine
As I am a complete beginner at this extraordinary site, please forgive infelicitous format, etc.
I completely agree that the excision of dandy roll, couch etc is incorrect and unhelpful. These terms are still in use today. The dandy roll puts the water mark on the paper and was patented for this purpose in 1839 (Joynson). Its original use had been to produce a finish more like hand made paper. The couch roll is a key item on the machine as it is here that the web is gripped for removal from the wire and transmission to the next section. Couch moreover, being derived from the French "coucher", to lay down, reminds us that until the invention of the machine in principal by Louis Robert in the midst of the French Revolution, paper was hand made and laid on the post (pile of wet sheets ready for pressing, by the "coucheur" or in English. the coucher. The machine is called Fourdrinier after the two brothers of that name who financed its development in England after various shinannigins whereby the design and sample paper was taken to England. Athough preceded by developmental patents, the key patent is 3068 of 1807 to Fourdriniers and Gamble. Bryan Donkin was the key engineer in the development. The first commercial machine, crude as it was, was installed at Frogmore, Hertfordshire in 1804 and this was followed by another experiment and then a better version at Two Waters nearby in 1805. This machine cost £4204.
This early machine made paper was of course rag based. Wood came along much later.
The reference to aligning the fibres is I think also incorrect. The whole point about paper is that the fibres are NOT aligned.
At least the comment in a local history article in Somerset England that the "four Drinier brothers" were involved has been avoided
BGL
it is spelled calender I changed it
It is spelled Calender, not Calendar. One is a papermaking piece of equipment, the other tells you what day it is. ;)