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		Keyed Joints - Course: Techniques of fitting and assembling component parts to produce simple units. Trainees' handbook of lessons (Institut für Berufliche Entwicklung, 21 p.)
			(introduction...)
			Preliminary Remarks
			Hints on Labour Safety
			1. Intended Use of Keyed Joints
			2. Types of Keys
			3. Types of Keyed Joints
			4. Kinds of Stress Acting on Keyed Joints
			5. Tools and Auxiliary Accessories
			6. Selected Technological Operations for Making Keyed Joints
			7. Undoing of Keyed Joints

3. Types of Keyed Joints

According to the task of the joint it is distinguished between fastening and tightening key joints. Keys used in fastening key joints are distinguished by their position to the longitudinal axis of the machine parts to be connected. Therefore, they are divided into keys and cotters.

Figure