Une visite au moulin de Brouains

Ecomusée du moulin de la Sée - Maison de l'Eau et de la Rivière

This museum is set in an old paper mill which was built at the beginning of the 18th century. You will find a display of the natural, technical and industrial resources of the river Sée valley.

 

 

 
The story of Yorick the salmon

 

 

 

 

 

 

 

The display in this room is a presentation of the life-cycle of the salmon, for which the river Sée is famous.
Among the best salmon rivers in France, the Sée provides an average of 400 fish each year i.e. 2/3 of the salmon of Basse-Normandie and 10 % of the national annual catch.

The life-cycle
In the three months after fertilisation, the egg salmon remains in the spawning area.
After birth the “ fry ” (new-born salmon), leave the spawning area for the main waters where they develop in size, strenght and agility. The majority, however, fall victim to predators at this stage, but a few survive.
When spring begins, the “ tacon ” (young salmon) move to sections of the river where strong current brings them food.
Here the young salmon matures and begins the process of physical and behavioural change which will equip it for migration and life in salt water (smolt). Gradually it moves downstream, gaining strength constantly, until it joins the sea of Mont-Saint-Michel and begins its ocean crossing to the feeding grounds off the south-west coast of Greenland.

I was born in the Sée… waters. But I really became an adult fish in salt water when I started a long and dangerous journey towards the icy waters of Greenland (the journey takes between one and three years). During these years, I ate my favourite food : shrimps which gives me my pretty pink complexion and my weight increased by a hundred.
But what is most amazing to scientists is the fact that I can find my way alone back to the Sée in order to breed. I rely on my memory and sense of smell. I neither need map nor compass !

I am a migratory fish which can be angled as I swim upstream to the spawning areas where I was born. I am called “ spring ” salmon if I spend over a year in salt waters (I can reach up to one meter or more for 8 kilogrammes weight), or “ smolt ” (castillon or saumoneau) when I spend only one winter in salt waters, this limits my size to 70 cm maximum. Angling is controlled and surveyed by the Water Police and the High Council for fishing.
I am one of the few fish that is angled before it breeds and the mimimum size for catching me is 50 cm. As for the trick of catching me, that depends on the expertise of each angler since I stop eating when I swim upstream to the spawning grounds. Everything lies in the art of locating me and the skill of the angler to tease me.
So eventually I will grab the hook and the bait not from hunger but from aggravation.

During the final stage of its life-cycle, the mature salmon returns to the river of its birth to breed. Afterwards most of the adult salmon die, the females from the effort of spawning, the males from injuries received while fighting other males. By the time they are found dying on the banks, the eggs the have laid are already developing. Thus the life-cycle continues.

 

In the days of paper making

 

 

 

 

 

 

 

 

 

 

 

Beginning on the right-hand side of the room, this section is devoted to the famous industry associated with the Sée valley : paper making. c.1828, more than 70 paper mills were operational in the Brouains valley between Chérencé-le-Roussel and Sourdeval.

Throughout centuries my ancestors witnessed the building of dozens of watermills. These mills were sometimes equipped with two or three wheels. So many obstacles to jump ! Fortunately my species was given a naturally powerful spring and I can spring up to 3.50 m high.
Paper making out of rotten rags was one of the famous industries associated with the Sée Valley. In 1810, 93 paper mills were recorded in the Mortain area, giving work to 448 workers and producing 84 200 reams of paper. Can you imagine how hard and noisy that work must have been !

Everything starts with shredding
When they were first brought to the mill, rags often of hemp, flax linen or cotton were washed, cut out and sorted. This work was done by women, then the rags were taken to rot in a stamping trough. They were watered and beaten for 8 to 10 days in order to get an even fermentation. The duration of this process was important for the quality of paper because if the rotting process was too long it increased highly the amount of waste.

The stamping trough
Rotten rags were beaten constantly with hammers operated by water wheel in granite vats, torn to shreds and become frayed. The process could take from 6 to 12 hours and produced the pulp.
The “ gouverner ”, a paper worker, surveyed the process, and estimated whether the pulp was thin enough. Then it was placed in the “ opening vat ” (a wooden vat).

The mould
The mould is a rectangular wooden frame across which copper or brass strings are tightened at regular intervals. The watermark, which is a brass string representing a shape or letters, is sawn on the lattice work. It is the trademark of the paper maker.

The making of the sheet
“ The opener ” dipped the mould into the pulp and shaked it softly from right to left and left to right until it was spread evenly into the surface of the mould. The water oozed out of the seive, which gave the pulp a consistency.
“ The closer ”, another worker, took the mould, peeled the sheet from the mould and placed it on a piece of felt. Both opener and closer could make up to 7 or 8 sheets a minute. A pile of 500 sheets, which was called a ream, was ready to get compressed in the press.

Once they were taken under the press, the sheets were taken up to the drying rooms, they were vast rooms, often lofts, where the hanging lines, often made of lime tree, were hung from the parts of frame work of the roof. After they were dried, the sheets were collected by women and taken to be stuck.
When it is dry the sheet absorbs water. So it was necessary to coat its surface with glue. After that it needed to be taken again to the press in order to extract the excess of glue. At last, the sheets were smoothed out (the remaining rough or dirty bits removed). Finally the paper was sent to Rouen, Paris or Saint-Malo for printing.

The team composed of “ the opener ” and “ the closer ” were the core of the activities at the mill.
Their specific expertise gave them a strong power over the other paper workers. The women looked after all the finishing off. In their work they were helped by children. The working conditions were hard at the mill : workers were often busy working in the glimmering light of candles, they had their hands in water most of the time and they often slept in the premices in a damp atmosphere. The working day started very early, between midnight and 2 : 00 a.m and finished at midday or 2 : 00 p.m which made it possible for men to work on the farm after that. The workers called “ of the courtyard ”, those who worked outside didn’t work at night. They were mechanics, joiners and shredders.

Paper making here virtually ceased after 1890 but by 1920 the vats and water power were being put to new uses by cutlers who used them to cut out, shape and stamp their products on the presses seen here.

 

The cutlery making workshop

On the left-hand side of the room are displayed items connected with the cutlery industry.

I am Yorick the salmon and I know the fragility of pewterware.
That is why a lot of industries from the valley, following the example of the Picard-Bazin firm, turned to making cutlery out of steel.
The two Bliss presses and the balance wheel which were driven by the force of water were used in making cutlery. They were all brought from the Rochefort mill in Tinchebray (Orne).
In order to prevent pewter cutlery from breaking it was made stronger by introducing a steel wire inside the mould on top of which a foundry worker poured a soft alloy made of 72 % pewter, 18 % antimony (to make it stronger) and 10 % lead. This technique was used by the main cutlery making firms until the 1940 s.
The vat displayed on the left hand side was used to melt pewter, its sides are made of fire resistant bricks. In its lower part was set a system of pipes which brought the heat. And 8 holes were pierced in the bottom of the vat.

Most of the time the foundry workers wives worked at the factory as “ scrapers ” : with the help of a file they used to scrape off the extra bits of cutlery after melting. And they used to take each piece of cutlery out of the mould and put it into wooden boxes.


The mills of the Brouains valley in 1864

The decline in the paper industry of the valley was most marked between 1860-1870.
Though a few mills turned to textiles, flour milling or the making of pewter, most settled on steel. Before this time, metal industries, numerous but small-scale, were found elsewhere in the district but, as demand increased, manufacturers set up larger units in the former paper mills.
The model shows the valley as it was in 1864 and it can be seen that though there were many paper mills, some had closed down. The distribution of metal works, textile mills and flour mills is also shown.


In the days of bellows making

From 1907 to the middle of the 60s, the Levallois Brothers manufactoring business was set here at the mill and they made industrial and domestic bellows.
The machine displayed here was called “ a pencil sharpener or a bell ” and it gave a cone shape to the mouth piece on which the nozzle was fixed.
Then the worker pierced three holes in the central part in order to place a valve which was to be, once set up, the soul of the bellows (it was a leather valve in which air is held back and then released through an exhaust nozzle). And lastly, the bellows were stored in a drying room where they finished drying and got their colours.
As you can see on the displayed bellows the most common decoration in the valley was a “ rosette ”. The decoration also called “ flowering ” was made by a woman who workows were stored in a drying room where they finished drying and got their colours.
As you can see on the displayed bellows the most common decoration in the valley was a “ rosette ”. The decoration also called “ flowering ” was made by a woman who worked at home. The only tool she used was a compass. She started by drawing the big outside circle with a gigsaw compass.
Then she drew the inside decoration. The leaves alone were carved with a gouge.


In the days of cutlery making

 

 

 

 

 

On the left-hand side the display of knives shows the traditional skills which already existed in the area. Cod knives were something of a local speciality.

Towards the end of the nineteenth century the decline in the paper industry brought numerous metal industries in the valley.
They had been in the Sourdeval area since at least the seventeenth century as there were a lot of pewter potters around. Those pewter potters were called “ grillous ”. “ Grillous ” have remained very dear to my heart of migratory fish. In the spring “ grillous ” went from village to village carrying their workshop, made of a charcoal forge, a workbench and a vice, a granite vat, the tools, the moulds and the raw material.
The tinsmith or “ grillou ” collected the broken pewter cutlery and made new forks and spoons out of the broken pieces. Each piece of cutlery was moulded in a simple brass mould (displayed here) which was sprayed with a mixture of sanguine (a kind of red iron oxyde) and of soda silicate. This spraying prevented the mould from getting tinned (which means covered in pewter).
Then the piece of cutlery was roughly scraped with a knife and it was polished with a buffing wheel. It is displayed near the cutlery making workshop.

By the end of the century, however, technical developments using water power made the work labour and machine intensive.
Many manufacturers opened workshops in the valley and early this century its six factories were responsible for 12 % of the national cutlery output. To protect it from tarnishing, tin was poured over the steel core. This was the hey-day of steel production. However, futher technical changes were about to occur.
The process for making stainless steel cutlery was introduced c. 1930.

After 1945, all manufacturers turned to stainless steel and the phenomenal success of Guy Degrenne began. By one simple process the cutlery was shaped and stamped with the dye stamp.
There are one cutlery factory in the Sourdeval area : Lebrun.

Stainless steel cutlery Have a look at the display cabinet dealing with “ how a spoon and a fork are made ”. The raw material (raw stainless steel) is brought to the factory in the shape of stainless steel sheets.
The cutting of spoons and forks is made piece by piece and these pieces are produced as “ flans ”. Then they are laminated (flattened) so as to give them the required thickness and “ détourés ” (surplus bits of steel were removed) in order to get the required shape.
During the stamping process called “ estampage ” a mould-matrix (displayed in this showcase) gives the piece of cutlery its volume and its decoration according to the style of the model. For forks another process is necessary, that is cutting out between the prongs, then speculum and prongs are stamped and the arching process is made at the same time as the decoration.
The finishing off : coating with emery (buff wheeling in order to remove any fault), polishing, trimming, controlling and packaging finish the manufacturing cycle.

The most sophisticated techniques mixed with skills inherited from past generations, such is the skill of the engraver. He makes the decoration which is intaglio engraved on a stamping die.
An original matrix is engraved first : it is used as a standard for the numerous matrix made for the production. Once engraved all dies are hardened. They are made more resistant through firing.
A lot of tools are used by the engraver : hammers, scribers, gravers, small chisels, burin, rifflers, files, compass and emeri or diamond powder. One or two months are required to acquire all the tools necessary for the making of a new model. The engraver’s skill is essential to the creation of new models.


Water and mills
In this room we show the evolution of the technology for harnessing the energy and force of water. The chain pump. This is the earliest ancestor of the water-mill and devices of this sort first appeared in Syria and China c. 2000 years ago.

Driven by the flow of the river, these devices were used to raise water for irrigation purposes.
The development of the mill wheel in its modern form occured very slowly until the 18th century Industrial revolution when French and English engineers devised efficient ways to extract maximum power from minimum amounts of water.
The three main types of wheel to be developed could be adapted to the variations in local water supply. Left example :
- The undershot Wheel. This was worked by the force of water strinking the blades as it passed under the wheel.
- Middle example : The overshot Wheel. The blades are replaced by long buckets, so that the weight of a little water turns the wheel.
- Right example : The breast Wheel. Water is directed at the mid-point of the wheel.
Finally, at the back of the room on the right-hand side, we display the French Water Turbine system which replaced the English steam engine for manufacturing purposes.

Two steam engines are shown : the first is an upright engine of the double action type, and the second : a horizontal steam engine.


Water cycle in a mill

Water race : water reservoir which is the power supply.
Overfall : regulating device (dam or level) situated upstream of the mill and equipped or not with sluicing. It enables the divertion towards the factory of the amount of water necessary (and legal) to its working. The water which is not used (when the mill is stopped or because of flooding) returns to the river through a tail-race.
Head-race : a branch canal man made which drives water from the reservoir to the overfall up to the water race. It can be made of wood, granite or concrete.
Sluice valve : this is placed across the water race immediately upstream of the water fall and it permits the modulation of the flow in order to work the wheel and put the devices into motion.
Tail-race : a canal which receives the water which has just driven the wheel. It leads this water back to the natural stream where it belongs. On its way, sometimes in several kilometres, it may supply water for the wheels of other mills.

 

Forge of Guy Degrenne’s father

At the top of the stairs may be seen the original forge installed here in 1933 by Emile Degrenne who bought the old factory of Lemonnier-Lenicolais des “ Vallées ” and adapted it for the production of hardware and ironmongrey. In 1940, his son Guy Degrenne, took over and began the manufacture of cutlery which has made his name a household word.

Now, let’s go to the projection room.
If you wish to follow Yorick’s tracks, a pedagogical tour is mapped out along the river the Sée. Start from the museum car park.

 

 

 

 


 

 

 

equentation par Analyse d'audience