|
Illustrated Catalogue of Pumps and Pumping Machinery,
1930
This catalogue covers the larger and heavier duty pumps.
It refers users to their other catalogue for the lighter pumps: "hand
pumps, pitcher pumps, lift and force pumps, yard pumps, farm pumps, deep
well pumps, contractors' pumps, chain pumps, rotary pumps, horse pumps,
fire pumps, ships' pumps, gaswork syphon pumps, colliery syphon pumps,
small treble ram pumps, small power pumps, wind mill pumps, centrifugal
pumps, hydraulic rams, etc..". That list, taken with the types of
pumps shown here, indicate the enormous range of specialist pumps that
the company made. Many of them must have been made to order and stocking
spares must have been quite a problem. It is perhaps surprising
that it seems that it was not until the 1950s that they made a
determined effort to rationalise and generalise their range.
 |
More than half of the catalogue is occupied by
Cornish steam pumps. This one is the Cornish Direct-Acting
Steam Pump (Bucket Type) Globe Pattern.
As in most cases of Cornish pumps there is a reference to
Evans' and Tonkin's Patents. It is not known that Evans
ever introduced any radical departure in pumps and their
patents were probably for changes to the basic machine. |
| This is the Cornish Compound Steam Pump which is
"compounded for the more economical use of steam". |
|
 |
This is another Cornish Direct-Acting Steam Pump
but it has Evans' Improved Suction Condenser.
Like all of their pumps, this one comes in various
conformations. In one conformation it is said that it will
pump 39,980 gallons per hour. |
|
|
Some pumps are horizontal only, some are vertical
only, and some can be mounted either way.
On the left is a Vertical Cornish Direct-Acting Sinking Pump.
Note the ring and chain at the top by which the pump could be
lowered down a shaft to "within suction distance of the water".
On the right is a Cornish Direct-Acting Steam Pump with
vertical cross-tube boiler "mounted on wheels for portability".
|
|
| The Portable Cornish Steam Pump and Boiler (Bucket
Type) "designed specially for low lifts, such as emptying mains
and trenches and for irrigation purposes".
This is 1930 but Richard Trevithick would have felt quite at
home with this machine. |
|
 |
The Cornish Double-Acting Steam Pumping Engine
(Outside-Packed Ram Type) "specially adapted for high lifts in
collieries and mines" and for gritty water. |
That's enough Cornish engines. The catalogue now
goes on to other types.
|
|
|
|
Return to Evans'
company history |
Go on to the rest of
the 1930 catalogue |
|
