Chafing Block 2 : A solid device with a circular groove; hose is laid in the groove and fastened by straps to protect the outer jacket of the hose from wear caused by friction with a curbstone, con. crete, gravel, etc
Ralph W. Burklin & Robert G. Purington, Fire Terms: A Guide to Their Meaning and Use, National Protection Association, Boston, MA 1980 USA. (Guide: Meaning and Use, Nat Prot Association Fr Srvc - Amer) {457}