We would like to thank all the companies who have kindly given permission for their copyright material to be used in this edition:

British Fluid Power Association (BFPA) (Sections 5.6.9–5.6.18, 5.6.20).

ContiTech United Kingdom Ltd. (Sections 5.2.4–5.2.18).

David Brown Engineering Ltd. (Section 5.1.1).

Henkel Loctite Adhesives Ltd. (Sections 4.5.1–4.5.9).

IMI Norgren Ltd. (Section 5.6.19).

National Broach & Machine Co. (Sections 5.1.4–5.1.17).

Renold plc. (Sections 5.3–5.4, 5.3.10–5.3.13, 5.3.16, 5.3.18–5.3.19, 5.3.21–5.3.22, 5.3.27–5.3.30).

Emhart Teknologies (Tucker Fasteners Ltd.) (Sections 4.2.8–4.2.18).

Butterworth Heinemann for allowing us to reproduce material from Higgins, R. A., Properties of Materials in Sections 6.2.2, and 6.2.3.

Butterworth Heinemann for allowing us to reproduce material from Parr, Andrew, Hydraulics and Pneumatics in Sections 5.6.1–5.6.4.

Newnes for allowing us to reproduce material from Stacey, Chris, Practical Pneumatics in Section 5.6.3.

Pearson Education Ltd., for allowing us to reproduce material from Timings, R. L., Materials Technology volumes 1 and 2 in Sections 6.1.1–6.1.21 and 7.1–7.5.

Extracts from British Standards are reproduced with permission of BSI. Complete copies of these documents can be obtained by post from BSI Sales, Linford Wood, Milton Keynes, Bucks., MK14 6LE.

Further information concerning the above companies can be found in the Appendix 3 at the end of this Pocket Book.