. 0 L INCHES Q. Propeller shaft of &-in. diameter stainless steel, connected by 5 to Q', which is a \-'m. steel drive shaft to the gear box. OA is a stainless steel collar secured to the propeller shaft by set screws and situated in front of the bearing to resist the drag (Figs. 3, 4). R, R'. Rods, two on each side, secured to the ring M behind and to the vertical fin G in front at RG. These serve as guards to prevent objects such as fish, seaweed, etc., being caught in and jamming the propeller (see p. 468) (Figs. 3-5). S. Universal joint of coiled spring type con- necting the propeller s
. 0 L INCHES Q. Propeller shaft of &-in. diameter stainless steel, connected by 5 to Q', which is a \-'m. steel drive shaft to the gear box. OA is a stainless steel collar secured to the propeller shaft by set screws and situated in front of the bearing to resist the drag (Figs. 3, 4). R, R'. Rods, two on each side, secured to the ring M behind and to the vertical fin G in front at RG. These serve as guards to prevent objects such as fish, seaweed, etc., being caught in and jamming the propeller (see p. 468) (Figs. 3-5). S. Universal joint of coiled spring type con- necting the propeller shaft Q and shaft Q' (Figs. 3, 4). T. Top half of gear box. This is formed of a casting extending from side to side1 of section B, having a dome-shaped swelling, carrying a screw plug TB in its centre, covering the gearing and having at the rear the housing for the bearing of the shaft Q'. Incorporated with this bearing is an adjustable packing gland with a locking device TA (Figs. 3-5, 7). U. Bottom half of gear-box casting carrying the gears and bearing for drive worm VE (Fig. 7). V. Reduction gearing (see Fig. 7). VA is the primary driving worm secured to shaft Q' carried in bearings in the top half of gear box and having between it and the rear bearing a thrust ball race. VB is the primary gear wheel which is driven by VA and secured to a shaft carried in the bottom FiS- 6- The Pr0PelIer removed from shaft' half of the gear box. Also secured to this shaft is the secondary worm VC driving the secondary gear wheel VD. This gear wheel VD is secured to a short vertical shaft which passes through the bottom of the gear box, in which is formed its bearing, and having secured to its outer end the worm VE which drives the gear train in the internal mechanism. W. Nose-piece castings which may be fitted into the front of the water tunnel to reduce the opening to 1 in. square or £ in. square or any other size as desired and held by screw above (Figs. 3, 5). X. Shock absorber or vibrat
Size: 2181px × 2292px
Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti
