Besuch in Kimberley XLIV

Besuch in Kimberley XLIV

Die beiden Schmalspurloks von vorne.

So die Loks haben mir keine Ruhe gewlassen, und ich habe die Google Bildersuche aktiviert. Mit tollem Ergebnis:
"Olive" (left) [Bagnall No 1814/1907], and her mate [Bagnall No 1817/1907] can be seen at the Kimberley diamond mine museum - both 0-4-2WT ("Well Tank") locomotives with working weight of 17 tons running on a 18 inch (457 mm) gauge.

Also die 2 Loks entstammen einer Serie von 4 Lokomotiven, die tatsächlich für diese Mine gebaut worden waren.
Die Loks sind 0-4-2WT (Well Tank) Maschinen, wiegen 17 Tonnen und verekehrten auf der ungewöhnlichen Spurweite von 457 mm (18 britischen inch). Sie stammen aus dem Jahr 1907 von Bagnall.

W. G. Bagnall was a locomotive manufacturer from Stafford, England. The company was founded in 1875 by William Gordon Bagnall and ceased trading in 1962 when it was taken over by English Electric Co Ltd. The company was located at the Castle Engine Works, in Castle Town, Stafford.

The "Olive" locomotive is of interest as it has the water tank between the frames (thus the "Well Tank" type indication) - this was done to keep the center of gravity as low as possible on the very narrow gauge, and hence the necessity for all the motion parts to be on the outside of the frame - this particular locomotive exhibits the special modifications which was required to make this type of design possible.

Summary of specifications:
W.G. Bagnall Ltd 18 Inch Gauge 0-4-2 Well Tank.
Four Wheels coupled with single trailing bogie,
and with "Modified" Bagnall-Price patent valve gear.
Special Design: Type "Kimberley" : Specially designed for narrow gauge work, and for running round sharp curves. Water tanks arrange between frames and fuel at back of footplate. Wheels inside frames and low buffer beams. Fitted with cope fire box and brass tub.
Catalog page describing details of the "Kimberley" type engine:
Cylinder Size.................12"x16"
Approximate Horsepower........145
Weight in working order.......16.25 Tons
Driving wheel diameter........26 inches
Trailing wheel diameter.......20 inches
Tractive effort...............9,886 LBS
Water capacity (well tank)....120 Gallons
Fuel capacity.................25 Cubic Feet (wood or coal)
Works Numbers.................1814-1817
Date in service...............1907

In addition: the frame length of the locomotive is 18 feet and the width of the frame is 6 feet 6 inches, making it a huge engine for the 18 inch gauge!




The Big Hole Kimberley Mine Museum.

Kimberley, 25.6.2023, The Big Hole Museum, Northern Cape, South Africa