CHAPTER XXXII.

=LEATHER BELTING.=

=Hides= 207, 208 The parts of a hide used for belting 207 The thickness and stretch of the parts of a hide 207 Experiments on the strength of the parts of a hide 208 =Single and double= belts 208 =Grain Side of Leather= 208 Weakness of the 208 Why the grain side should go next to a pulley 208 =Belts= 209 to 217 The length of 209 Belt clamp 210 The sag of belts 210 Belt connection at an angle 211 Guide pulleys for belts 211 The tension and creep of belts 212 Methods of joining the ends of belts 213 Forms of belt lacings 214 Covers for belt lacings 215 Lap joints for belts 215 Joining thin belts 215 Bevelled joints for belts 215 Pegged belts 215 Belt hooks and belt screws 216 Angular or V-belts 217 The line of motion of belts 217 Changing or shipping belts 217 Automatic belt replacer 218 Pull of a belt 218 The Sellers experiments on transmission of power 218 to 225 Belt 5-1/2" wide by 7/32" thick 219 Belt 2-1/4" wide by 5/16" thick 219 Rawhide belt 4" by 9/32" 220 Double oak tanned belt 4" by 5/16" 220, 221 Oak tanned belt 2" by 3/16" 222 Coefficient of friction and velocity of slip 222 Torsional moment 223 Increase of tensions 224