Handbook for Small Sawmill Operators by ASME 1956 – new reprint

Description

Handbook for Small Sawmill Operators: How to Attain and Maintain Accuracy of Cutting
, originally published by the American Society of Mechanical Engineers, New York, NY, 1956. Reproduced by Nation Builder Books, Mebane, NC, 2018. 5½  x 8½ paperback, 68 pages.
Please note that this is a PHOTOCOPIED reproduction of the 1956 original. The accompanying images were scanned from a reprint, not the original.
The original book was prepared by the Logging and Milling Committee of the Forest Products Research Society, at the request of the Office of Defense Mobilzation, and was sponsored by the American Society of Mechanical Engineers. It was originally published as a series of articles in
Forest Products Journal
.
Table of Contents:
Introduction
Small sawmills can produce accurately sized lumber if they are well constructed, properly maintained, and correctly operated. This Handbook summarizes the causes of miscut lumber and indicates the action that the sawmill operator can take to eliminate these causes.
….It has been found that many small sawmills put from 10 to 20 per cent more volume into their product than is needed. This means higher costs, lower profits, higher prices….
Part I. Machinery
Sawmill machinery must be properly installed and maintained in order to consistently produce accurately sized lumber. With a standard circular headrig, product accuracy is particularly affected by parts of the husk, ways, and carriage, and inadequate power. These factors are discussed, as well as power requirements and corrective measures for inadequately powered mills
This chapter was written by Milton H. Mater, of Mater Machine Works, Corvallis, Oregon, and Ernest Clevenger, of Corley Manufacturing Co., Chattanooga, Tenn.
Part II. Saws
For a sawmill to function properly, the saw muct be of the proper type, correctly tensioned for the speed at which it is being run, and the cutting teeth must be in good condition. Factors to consider in selecting the proper saw are discussed and a detailed explanation is given of fitting the saw.”
This chapter was written by Earl A. Mayberry, of R. Hoe and Co., New York, NY, aand Dewey Gommel, Atkins Division, Borg-Warner Corp., Indianopolis, Ind.
Part III. Mill Setup
Factors in setting up a small sawmill which may affect accuracy of cutting are discussed. Foundations under the sawmill are of prime importance in assuring properly cut lumber. Installation and adjustment of sawmill equipment to assure a stable mill setup is explained.
This chapter was written by K.C. Compton of the State University of New York College of Forestry, Syracuse, NY, and G.E. Bell, of the Forest Products Laboratory of Canada, Ottawa, Canada.
Part IV. Mill Operation and Trouble Shooting
Practicing preventive maintenance will lessen the need for trouble shooting in any sawmill. Routine checking of the entire mill setup will improve the quality of lumber sawn. Almost equally important is the accuracy of calculation of thickness to be obtained from a cant or flitch. The aim should be minimizing both mechanical and human errors in operation of the sawmill.
Includes:
The Dog Board as Aid in Trouble Shooting
Causes for Saw Heating on the Rim
Causes for Saw Heating at the Center
Miscalculation
The Problem of Low Production
Edging and Trimming Accuracy
This chapter was written by David P. Thomas, University of Washington College of Forestry, Seattle, Wash., and Roswell D. Carpenter, Reisen hardwood Lumber Co., Union, new Jersey.
Part IV. Glossary and Appendix
Appendix includes reference tables which will assist in efficient operation of small sawmills.
This chapter was written by W.J. O’Neil, University of Missouri  Department of Forestry, and John P. Sims, Frost Lumber Division, Olin-Mathieson Chemical Corp., Monroe, La.
Includes:
Comparison of Log Rules
Standard Saw Gauges
Extent to Which Inserted-Point Sawteeth and Tooth Holders Produced by Various Manufacturers Can Be Interchanged (Includes Atkins, Corley, Disston, Hoe, Lippert, Simmonds, Southern, and Spear and Jackson)
Average Power Requirements at the Headsaw for Some Canadian Species