FEATURES OF ENGINEERING INTEREST 83 



west side. This section terminates at Northallerton, where an additional 

 line has been constructed to connect the low-level Leeds to Stockton line 

 with the up main line. This necessitated the construction of a bridge 

 under the main line without interruption of traffic. 



At 2 miles north of Northallerton water troughs are constructed 

 between the rails. From these the engines may collect water while 

 travelling at speed by lowering a scoop, the water being replenished by a 

 supply pumped from a nearby stream into a control tank. 



At Croft Spa, 3 miles farther on the journey, the river Tees is crossed, 

 and on the west side at a lower level may be seen a single track railway, 

 which formed part of the original Stockton and Darlington Railway now 

 used as a goods branch for Croft village. 



Darlington is now reached, and on the east side will be seen the line 

 to Middlesbrough, etc., and beside it and the main line are the works 

 of the Cleveland Bridge & Engineering Co. Ltd. 



In Darlington Station is mounted Locomotive No. i, which George 

 Stephenson drove when opening the Stockton and Darlington Railway 

 in 1825. 



Messrs. Adams Hydraulics, Ltd. 



Messrs. Adams Hydraulics, Ltd., specialise in all manner of plant in 

 connection with sewerage and sewage-disposal. This mainly falls under 

 three heads : 



(a) Sewerage Ironwork — mainly manhole covers, gully grates, vent 

 columns and sewer-flushing syphons. 



(b) Sewage Lifting Plant — automatic compressed-air sewage ejectors, 

 automatic sewage lifts and sewage pumping plant. 



(c) Sewage Works — all types of valves and fittings used on sewage 

 disposal works, revolving distributors, sludge plant, mechanical screening 

 apparatus, detritus lifting plant, penstocks, etc. 



Cleveland Bridge & Engineering Co. Ltd. 



Established over fifty years ago, the Cleveland Bridge & Engineering 

 Co. Ltd., of Darlington, have for many years been one of the largest and 

 most important bridge-building companies in the United Kingdom. The 

 business of the company is primarily that of bridge-building, and the 

 reputation of the company has largely been built up in this connection, 

 but in addition to bridges they carry out the construction of all structures 

 in steel, such as workshops, power stations, pipe lines and dock gates. The 

 company are contractors as well as structural engineers, and wheh they 

 undertake a contract they carry out the whole of the work, including 

 foundations and all building work, themselves. They are, in fact, 

 specialists in all kinds of foundations. 



Two well-known bridges manufactured and erected by them, including 

 the foundations, are the King Edward Bridge over the river Tyne at 

 Newcastle, and the Victoria Falls Bridge over the Zambezi river. Among 

 more recent contracts may be mentioned : 



Two airship sheds at Cardington, and also the steelwork for the mooring- 

 masts in Cardington, Egypt and India. 



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