Stephenson Valve Gear for STEAM Engines and Locomotives - 1925 - reprint

Description

Stephenson Valve Gear
, ICS # 1665 A, originally published International Correspondence Schools, Scranton, Pennsylvania, 1925. Reprinted by Nation Builder Books, Mebane, NC, 2015. 5½ x 8½ photocopied booklet, 62 pages.
Please note this is a new photoduplicated reproduction, not an original.
The accompanying pictures were scanned from a reprint, not the original.
As is usual with most correspondence course booklets by the International Correspondence Schools, this is richly illustrated with crisp line drawings. Contents include:
Definition of Valve Gear
Principle on Which Gear Operates
Arrangement of Simple Gear
Position of Cranks
Operation
Addition of Stem Lap
Reversing Arrangement
Views of Valve Gear
Arrangement of Parts
Use of Transmission Bar
General Operation
Positions of Reverse Lever
Movement Imparted by Reverse Lever
Movement Imparted by Eccentrics
Details of the Parts
Action of Eccentric
Eccentric Strap
The Link
Link Saddle
Link Block
Reverse Shaft
Link Hanger
Rocker and Rocker Box
Oiling Points in Valve Gear
Indirect and Direct Motion
Valve-Rod and Valve-Stem Connection
Position of Eccentrics
Indirect Motion and Outside Admission
Direct Motion and Outside Admission
Indirect Motion and Inside Admission
Direct Motion and Inside Admission
Increase in Lead
Crossed and Open Rods
Valve Movement in Mid-Gear
Reversing
Effect on Valves
Movement on Valves When Reversing
Link Arc and Link Radius
Breakdowns
Slipped Eccentric
Setting a Slipped Eccentric
Broken Forward-Motion Eccentric, Strap, or Rod
Broken Back-Motion Eccentric, Strap, or Rod
Broken Link Hanger, Saddle Pin, or Lifting Arm
Broken Link-Block Pin, or Lower Rocker Arm
Broken Transmission Bar
Broken Top Rocker Arm or Valve Rod
Failure of Reverse Lever
Reason for Variation in Cut-Off
Single Shifting Eccentric
Shifting Eccentric and Valve Gear Compared
Change in Cut-Off
Cut-Off Not Affected by Decreased Throw
Angularity of Main Rod
Difference Between Position of Piston on Forward and Backward Strokes
Offset of Link-Saddle Pin
Examination Questions