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Single pull macgregor type hatch cover.pdf - Cochin University of ...

Single pull macgregor type hatch cover.pdf - Cochin University of ...

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Figure 6.12: Crane space<br />

Source: Team<br />

Top platform made was fixed at the top <strong>of</strong> the rectangular box made above as<br />

shown in the figure. A <strong>pull</strong>ey was then fitted at the middle at a height <strong>of</strong> 32.5cm from<br />

the weather deck<br />

6.10 MOTOR REDUCTION GEAR PULLEY FABRICATION<br />

Motor shaft and the smaller gear shaft were coupled together and bearing is provided.<br />

Bigger gear is engaged to the smaller gear and bearing is provided at each end. Pulley<br />

was fitted to the bigger gear shaft. Motor and gears were <strong>cover</strong>ed with casing for<br />

safely purpose.<br />

6.11 FABRICATION OF BULWARK<br />

10m <strong>of</strong> iron rods <strong>of</strong> diameter 4mm were brought to the work table.<br />

Four pieces <strong>of</strong> 150 cm length each were cut by using hack saw.<br />

Two rods were taken and kept parallel to each other at a distance <strong>of</strong> 3.2cm.<br />

Nails were taken and welded as shown in the figure 6.13.<br />

77

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