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Sandstone
Heritage Trust - News
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173 - Compagnes Drift Mill - by Andy Selfe |
| 18th
January 2007 |
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Any collector and restorer of Stationary Engines is always on the
look-out for unusual pieces of equipment to drive with his engines,
so making them more interesting to the general public. It cannot
be often that the occasion arises to drive a whole mill house! I
have had this fortunate opportunity recently on the farm Compagnes
Drift in Bot River, which dates back to 1750 and was an outpost
of the Honourable Dutch East India Company (VOC). The farm, home
to the Beaumont family, is situated about 100 km due East of Cape
Town, and luckily only 23 km from Elgin where I live.
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The farm gate post. |
I have been working occasionally on the tractors and other farming
equipment on the farm for over 20 years, and had often asked to
be shown 'the Mill', but the opportunity never seemed to arise.
During October 2006, I tagged on to the tail of a tour organised
by Joanna Marx of the 'Friends of Mostert's Mill', for the Archaeological
Society. While viewing the water wheel, even before entering the
building, Joanna asked me what the strange contraption was sticking
out of the side of the building to the right of the water wheel.
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The water wheel of Compagnes Drift Mill. High up to the right, the
input pulley for engine drive can be seen. The launder for supplying
water to the wheel has long since rotted away, but the supports
are all still there.
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It
was clear that this flat-belt pulley, with its bearing supported
by an upturned lorry chassis and a shaft disappearing into the building,
was an external drive for times when no water was available to turn
the water wheel. Below and to the right are mounting bolts and wooden
bearers for an engine.
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Once
inside, this was confirmed by the presence of a pair of fast-and-loose
pulleys on the end of a line-shaft, exactly opposite the small input
pulley which protrudes through the wall. Under the pulleys there
is striking gear which can be remotely operated from outside the
building near the engine by the person who has just started the
engine, or intends to shut it down. On this line shaft are six other
pulleys set up to drive the machinery inside.
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Line
shafting, stretching the full length of the building. The furthest
pulley drives the Gutmann mill below and to the right, the large wooden
pulley drives the Stamford mill directly below. The top of the elevator
for grain for the Stamford mill can be seen, and also part of the
grain cleaner.
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Machinery
inside includes a Blackstone 'Stamford' mill with vertical 24"
French Burr Stones, a German 'Portable' mill made by Gutmann in
Frankfurt am Oder, a seed cleaner and two elevators. In addition,
driven directly from the water wheel is the original 'Vitruvian'
mill, lying dismantled, apparently for stone dressing, but with
many parts missing. |
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'Portable'
mill made by Gutmann of Frankfurt am Oder in Germany.
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I
asked whether I might be allowed to come back and see whether I
could get the mill going again. It has been standing idle for something
like 40 years. I argued that it would be an additional attraction
for the Wine Tasting, as this is a wine farm with its own brand.
There are also two farm-stay cottages, one being the original Miller's
house. Permission was gladly given and after spending four enjoyable
Saturdays there, we milled for the first time! |
Concentrating
on the two 'Portable' mills, it was a question of selecting a suitable
engine, making up belts, lubricating the bearings and freeing off
the mills themselves. The Stamford was just jammed by the tentering
wheel being screwed in too far. On the Gutmann, the tentering wheel
was completely missing, so the massive runner stone was resting on
the bedstone. The thread measures 25mm, and as there is no 25mm metric
thread, it had to be Whitworth (not uncommon on older Continental
equipment). So a 1" UNC nut was tried on the tentering screw
and soon the stones were apart and the runner stone turning! Since
then, a cast iron wheel-valve handle has been cut with the same thread
and fitted.
The engine I chose was my Lister CE, dating from 1939. An engine I
have had the longest, but which is too heavy to take to shows, so
this affords it a chance to be seen and enjoyed, working for the first
time since it drove a tar mixing machine made by Millars' Machinery.
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Lister CE of 1939, 16 HP at 1200 RPM with 2:1 reduction gear and centrifugal
clutch. Certain modern additions were made when I got the engine in
1979, like external oil and fuel filters and the oil pressure and
water temperature gauges visible in the picture. The Lister fuel tank
is a later addition.
While attention has been focused on getting a milling display ready
for the Wine Estate's Open Days on 20th and 21st January 2007, a bit
of preparation has been done towards getting the water wheel and Vitruvian
mill going. After greasing the three axle-tree bearings, the water
wheel now turns, although the launder to supply water to it has rotted
away a long time ago, yet the supports for it remain intact. Inside,
I have loosened off the shaft which drives the runner stone and made
a replacement for the missing drive. Above the mill stones I have
installed lifting tackle for the stones, the runner might easily weigh
a tonne! Measurements have been made and a cooper contacted in the
hope that a 'tun' can be made in the style of part of a wine barrel,
as was popular at one time. |
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Lifting
tackle installed and the bedstone raised to inspect the condition
of the supporting floor. |
I was not sure what size of pulley to fit on the engine. We had only
one known speed, that of the Stamford mill at 450 RPM. From that it
was possible to calculate the speed of the line shaft and all the
other pulleys in the building. By pure good fortune, with the input
belt running on the drum of the centrifugal clutch and with a twist
in the belt, all the pulleys rotate at the correct speed, without
tampering with the Lister's governor at all!
So we're ready for visitors on the Open Days, and hopefully many other
occasions in the future, every time with something else restored and
running!
Regards
Andy |
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