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		Feather Key Joints - Course: Techniques of fitting and assembling component parts to produce simple units. Trainees' handbook of lessons (Institut für Berufliche Entwicklung, 19 p.)
			(introduction...)
			Introduction
			Hints on Labour Safety
			1. Purpose of Feather Key Joints
			2. Kinds of Feather Keys and Profile Shafts
			3. Kinds of Feather Key Joints
			4. Stress on the Feather Key Joints
			5. Tools, Devices and Auxiliary Means
			6. Technological Processes for Manufacturing Feather Key Joints and Profile Shaft Joints
			7. Detachment of Feather Key Joints

Hints on Labour Safety

In principle, the regulations on labour safety are applicable which have to be observed with the techniques of filing, scraping, drilling, reaming, milling and shaping. Special attention has to be paid to the following main points:

- Use only clean and sharp tools are which not defective.
- Workpieces must be firmly and safely clamped - but so that they are not damaged.
- Keep the measuring and testing tools carefully and protect them against damages by shock and corrosion.
- Keep the workshop place in order, keep individually manufactured fitting pieces only together with their counterparts.