. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. 466 DISCOVERY REPORTS sheet metal within the cylindrical body of the machine. Where the machine opens for the loading of the spools (at X above and hinged at Y below, see also photographs in Plates I and II) the two faces of the castings of the fore and rear parts fit tightly together below and at the sides of the water tunnel to prevent the escape of water, whilst above there is a narrow slit1 to allow the passage of the gauze to the driving and storage rollers. The graduated gauze banding wind
. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. 466 DISCOVERY REPORTS sheet metal within the cylindrical body of the machine. Where the machine opens for the loading of the spools (at X above and hinged at Y below, see also photographs in Plates I and II) the two faces of the castings of the fore and rear parts fit tightly together below and at the sides of the water tunnel to prevent the escape of water, whilst above there is a narrow slit1 to allow the passage of the gauze to the driving and storage rollers. The graduated gauze banding winds off the spool C placed below the water tunnel and leading round the small roller D passes through a slit and up across the water stream at E; here it is supported behind by a grid of fine rollers at F. The bottom of the water tunnel is hinged at G, and may be lifted up at H for loading the roller C when the machine is opened; this movable piece of the water tunnel is held in position by the. C D' ~Y Fig. i. Simplified diagram of the mechanism of the Type I Recorder, clips at the side which may be seen in Plate I. The edges of the gauze banding pass up in recesses in the face of the forward casting, which just give sufficient clearance for the passage of a single thickness of gauze; the recess on the right-hand side is clearly seen in Plate I. The gauze banding after sieving out the plankton passes through a slit and up between the driving rollers / and K; in passing through the slit it is immediately joined by the second gauze banding which has wound off a spool L placed in a tank of formalin. The driving rollers / and K grip the edges of the two gauze bandings but do not press on the middle part imprisoning the plankton. The two bandings are now wound up on the storage spool M, which is driven by a chain and friction drive from the driving rollers (see general principles on p. 462). The driving rollers are turned slowly by a worm gear through the gear box N from the propelle
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Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti
