Description:

1. The drive shaft (15) is rotated by the change gears of the quadrant. - Ведущий валик (15) получает вращение от сменных зубчатых колес гитары.

2. The gears (11) and (12) can be moved along the shaft (15) by means of the lever (10). - Зубчатые колеса (11) и (12) можно перемещать вдоль валика (15) посредством рычага (10).

3. The driven shaft (2) has different rotational speeds depending on the lever (10) position. - Ведомый валик (2) получает различные скорости вращения в зависимости от положения рычага (10).

4. The gear (2) on the driven shaft (3) can transmit torque to the lead screw (5) or feed rod (6) at different speeds. - Зубчатое колесо (3) на ведомом валике (2) может передавать вращающий момент ходовому винту (5) или ходовому валу (6) с разными скоростями.

Engine lathe carriage

(Суппорт токарно-винторезного станка)

1. Carriage saddle; longitudinal slide – каретка суппорта; продольные салазки суппорта

2. Lead screw – ходовой винт

3. Cross slide – поперечные салазки суппорта

4. Top slide swivel base – поворотная плита верхних салазок суппорта

5. Compound rest guideways – направляющие верхнего суппорта

6. Four-sided tool post for holding four tool bits or tool holders – четырёхгранная резцовая головка для закрепления четырёх резцов или резцедержателей

7. Tool post screw – винт для закрепления резцовой головки

Lesson 1,2

Requirements of IMO, MARPOL, STCW-78 AND SOLAS

IMCO (IMO) – International Maritime Organization

The volume of transporting goods by sea has growing considerably for the last 35 years. In 1976 the total amount reached 3,352 mln tons. The number of transport vessels is still growing very rapidly. The sailing of so many vessels in the world’s oceans and seas evolved many new problems. To avoid many perils and accidents at sea it became necessary to coordinate their activities. Of course it could be done only by mutual efforts of all the countries. The Organization of the United Nations worked out a special convention for creating such organization which was named the Inter-governmental Maritime Consultative Organization (IMCO). Now this organization is called IMO.

Now IMO performs many functions through its Committees. The main of them are: the Committee of safety at sea; the Committee for protecting the sea environment; the Juridical Committee and the Committee for technical cooperation.

MARPOL – MARINE POLLUTION.

Marpol is an international for protecting waters. Every crew member must follow Marpol Regulations, according to Marpol. It must be 4 garbage containers on board a ship.

For:

• Dry garbage

• Plastic garbage

• Garbage not subjected to decomposition

• Food wastes

It is necessary to comminute the garbage to 25 mm in 3 miles from internal waters.

It is permitted to dispose food wastes outside the 12 mile zone. It is prohibited to dispose any garbage in the internal and harbor waters.

It is also prohibited to drain:

• Bilge waters

• Sewage waters

• Suds

• Oil and petrochemical products wastes

• Any garbage can be dispose only after the order of the Chief Officer

Duties of the seaman according to MARPOL are following:

• I must not throw any garbage overboard

• I must distribute the garbage according to the garbage containers

• There are special areas where is forbidden to dispose any garbage, such as the Black Sea, the Mediterranean Sea, the Baltic Sea, the North Sea, the Persian Gulf, the Mexican Gulf and so on.