Railway Bridge Ties, Membrane Filters, Hydraulic Post Drivers, Bi-Planes

24th April 2014 21 mins Season 23 Episode 4

Heavy timbers are cut, drilled and treated for use as railway ties on bridges. Selective membranes are formed and installed in filtration units; hydraulic mechanisms are assembled into machines that drive posts into the ground; and wooden or metal airframes, wings, control surfaces and engines are brought together to build biplanes.

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Season 23 · Episode 5

Hospital Laundry, Brass Instrument Restoration, Horse Replicas, Excavation Buckets

Hospital linens are sorted, disinfected, washed, dried and folded on a large industrial scale. Damaged brass instruments are dismantled, repaired and refinished; moulded forms are carefully painted and detailed to create lifelike horse replicas; and thick steel plates are cut, curved and welded into excavation buckets.

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