Canlyniadau Chwilio / Search Results
| | | ![Expand 5 - Mussel purification at Conwy. Includes purification tank B resembling in all essentials the commercially operated mussel tanks at Conwy, showing pump, suction hose and [delivery] hose, final shell sterilisation is in progress [mussels can be seen submerged in water]; purification tank B empty of water, mussels can clearly be seen covering the base of the tank; reconditioning tank A to which the water from [purification tank] A is pumped for chlorination, followed by aeration and de-chlorination. Three of the nine diffusion plates as used for [activated sludge] can be seen, each having its own control valve, thus providing even aeration. The large pipes at the back of the tank were installed for other experimental work for which the tank was originally designed; reconditioning tank A showing aeration and de-chlorination in progress; [small pump] and battery jar showing aeration of used sea water after chlorination and before re-use; view through open door of refrigerator of a battery jar containing mussels [experiments on cleansing of mussels at low temperatures]; two battery jars each containing seawater made turbid by a small quantity of Fullers earth, the left hand jar contains no mussels while the right hand jar contains thirty mussels which have just been immersed, a dark wooden bar placed behind both jars is barely visible through the water; the same jars two hours later, the left hand jar looks exactly the same, the right hand jar now contains clear water and the mussels and the wooden bar behind the jar are clearly visible; exterior view of semi-scale plant, showing tall aeration tank in the foreground, and shed containing mussel cleansing tank, pump, compressor, etc. in background; interior view of semi-scale tank showing pump, compressor, oil [fitter], air-flow meter and pipe conveying compressed air to aeration tank; mussels in semi-scale tank being hosed for external cleaning; measured dose of chlorine being added whilst supernatant water is being pumped from cleansing tank to aeration tank.
[2 series of photographs, C/P/48/5/1/5/1-4 containing 4 photographs plus 2 duplicates [enlargements], original number 1-4; C/P/48/5/1/5/5-12 containing 8 photographs, original number If/2/4-5,7-8,10-13. All photographs have writing on dorse.]](/CalmView/WebResource.axd?d=dfUleQtcrUQmLLnzdtW3uaUXRFylVHRk0qNqRg7YpJq0FVx_SnTEv4tJ3at7y4-AbV1PHtWex32uQo2TdQObYY4IWt7BzYELhK3qoL4e0sJM5LB1nWU7vXb5XJ0E1K1e0&t=638610907965203766) | 5 - Mussel purification at Conwy. Includes purification tank B resembling in all essentials the commercially operated mussel tanks at Conwy, showing pump, suction hose and [delivery] hose, final shell sterilisation is in progress [mussels can be seen submerged in water]; purification tank B empty of water, mussels can clearly be seen covering the base of the tank; reconditioning tank A to which the water from [purification tank] A is pumped for chlorination, followed by aeration and de-chlorination. Three of the nine diffusion plates as used for [activated sludge] can be seen, each having its own control valve, thus providing even aeration. The large pipes at the back of the tank were installed for other experimental work for which the tank was originally designed; reconditioning tank A showing aeration and de-chlorination in progress; [small pump] and battery jar showing aeration of used sea water after chlorination and before re-use; view through open door of refrigerator of a battery jar containing mussels [experiments on cleansing of mussels at low temperatures]; two battery jars each containing seawater made turbid by a small quantity of Fullers earth, the left hand jar contains no mussels while the right hand jar contains thirty mussels which have just been immersed, a dark wooden bar placed behind both jars is barely visible through the water; the same jars two hours later, the left hand jar looks exactly the same, the right hand jar now contains clear water and the mussels and the wooden bar behind the jar are clearly visible; exterior view of semi-scale plant, showing tall aeration tank in the foreground, and shed containing mussel cleansing tank, pump, compressor, etc. in background; interior view of semi-scale tank showing pump, compressor, oil [fitter], air-flow meter and pipe conveying compressed air to aeration tank; mussels in semi-scale tank being hosed for external cleaning; measured dose of chlorine being added whilst supernatant water is being pumped from cleansing tank to aeration tank.
[2 series of photographs, C/P/48/5/1/5/1-4 containing 4 photographs plus 2 duplicates [enlargements], original number 1-4; C/P/48/5/1/5/5-12 containing 8 photographs, original number If/2/4-5,7-8,10-13. All photographs have writing on dorse.]
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| | | | 6 - LABORATORY scenes. Includes top covered tank with electric power points, [fuse box], small [cistern-shaped tank] on wall mounted shelf, pipes connected to upright [? tank], [cables] connected to [? power unit or tank]; [? Phaerdactylum] culture in greenhouse, row of [metal] containers, each containing a smaller glass [tank] covered by a sheet of glass; laboratory equipment [glass jars and containers]; [water] filled [glass] tanks containing [oysters]; [water] filled containers, each containing a rack of oysters; oyster spat trays, partially submerged in water, a pipe across the tank is feeding small jets of [water] down into the tank and trays; rows of laboratory equipment, glass containers connected up to tubes and pipes; [oyster larvae] rearing vessels, large plastic bins or tubs, each bin or tub filled to the 125l marker and covered by a [?plastic or Perspex] cover, tubes are connected to each tub through the covers; shots of [scientists or technicians] examining and [filling or emptying] the tubs; [scientist or technician] examining trays of [oyster spat]; hosing a tray of [oyster spat], tray held over a large [plastic] funnel, supported by a funnel stand, both funnel and stand in a [tray base]; [?brushing or coating] the [lid of a oyster tub]; pouring liquid into a funnel in the sink; part of a [?pump or compressor] and other laboratory equipment; views of laboratory; three shelves of round-belly flasks, containing various levels and types of liquid, shelves in front of window through which part of Conwy Castle can be seen; glass jars containing [?Crustaceans]; scientists examining mussels; scientist measuring a lobster, lobster pot [creel] in view; scientist or technician examining [mussel] in [Castle Bank] laboratory; examining slide under a microscope; Webb's oyster performance recorder.
[47 photographs including duplicates and enlargements.
12 are copyright of World Fishing Commercial Exhibitions and Publications Ltd, 4 are copyright of A J Lennie, Press, Llandudno [some are proof copies] and 3 are Crown copyright.]
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