It was developed in 1913 by Austrian professor Viktor Kaplan, who combined automatically adjusted propeller blades with automatically adjusted wicket gates to achieve efficiency over a wide range of flow and water level.
22.
Accordingly, having walked about a mile from their home, along the road that passed close to St Lawrence's Church and the associated school, at 3.00pm they parted ways at a wicket gate.
23.
The white wicket gate and the fern covered stone wall are real world details as are the views looking out over Hill Top, Smithy Lane, Stoney Lane winding up to Bank Wood, and the dry stone walls crossing the fields.
24.
There are three bronze relief scenes from the " Pilgrim's Progress " set in the plinth : Christian at the wicket gate; his fight with Apollyon; and losing his burden at the foot of the cross of Jesus.
25.
At the Wicket Gate begins the " straight and narrow " King's Highway, and Christian is directed onto it by the gatekeeper Goodwill who saves him from Beelzebub's archers at Beelzebub's castle near the Wicket Gate and shows him the heavenly way he must go.
26.
At the Wicket Gate begins the " straight and narrow " King's Highway, and Christian is directed onto it by the gatekeeper Goodwill who saves him from Beelzebub's archers at Beelzebub's castle near the Wicket Gate and shows him the heavenly way he must go.
27.
After getting over the River of Death on the ferry boat of Vain Hope without overcoming the hazards of wading across it, Ignorance appears before the gates of Celestial City without a passport, which he would have acquired had he gone into the King's Highway through the Wicket Gate.
28.
The visitor then passes through the Wicket Gate to pass along the side of the house to the House of the Interpreter, formerly Mellor's stables . } } The path goes up a slope between dry stone walls to represent the Wall called Salvation, and passes on to become the Holy Way.
29.
The name probably derives from the Alborgh or Albourgh family who occupied the manor in the Middle Ages and are mentioned in 14th and 15th century records . " Hatch " derives from the Old English word " h�cc " ( " hatch gate " or accessdate " wicket gate " ), which originally gave access to Hainault Forest when it stood here.
30.
These were covered by cannons that were placed where they could be most effective, and a wicket gate that flanked a large part of the wall, was left open but cross-barred, to make it difficult for attacking soldiers to enter but also to channel their advance towards a cannon that had been placed at the gate to enfilade its approach with showers of grapeshot.
