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

Modern Machine-Shop Practice, Volumes I and II · 第 19 / 49 章