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    Motor Truck Logging Methods Engineering Experiment Station Series, Bulletin No. 12
    Motor Truck Logging Methods Engineering Experiment Station Series, Bulletin No. 12
    Motor Truck Logging Methods Engineering Experiment Station Series, Bulletin No. 12
    Ebook109 pages1 hour

    Motor Truck Logging Methods Engineering Experiment Station Series, Bulletin No. 12

    By Frederick Malcolm Knapp

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    LanguageEnglish
    PublisherArchive Classics
    Release dateNov 26, 2013
    Motor Truck Logging Methods Engineering Experiment Station Series, Bulletin No. 12

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      Book preview

      Motor Truck Logging Methods Engineering Experiment Station Series, Bulletin No. 12 - Frederick Malcolm Knapp

      Project Gutenberg's Motor Truck Logging Methods, by Frederick Malcolm Knapp

      This eBook is for the use of anyone anywhere at no cost and with

      almost no restrictions whatsoever. You may copy it, give it away or

      re-use it under the terms of the Project Gutenberg License included

      with this eBook or online at www.gutenberg.net

      Title: Motor Truck Logging Methods

      Engineering Experiment Station Series, Bulletin No. 12

      Author: Frederick Malcolm Knapp

      Release Date: September 8, 2011 [EBook #37359]

      Language: English

      *** START OF THIS PROJECT GUTENBERG EBOOK MOTOR TRUCK LOGGING METHODS ***

      Produced by Harry Lamé, Greg Bergquist and the Online

      Distributed Proofreading Team at http://www.pgdp.net (This

      file was produced from images generously made available

      by The Internet Archive/American Libraries.)

      Please see the Transcriber’s Notes at the end of the document.

      The Engineering Experiment Station of the University of Washington was established in December, 1917, in order to coördinate investigations in progress and to facilitate the development of engineering and industrial research in the University. Its purpose is to aid in the industrial development of the state and nation by scientific research and by furnishing information for the solution of engineering problems.

      The scope of the work is twofold:—

      (a) To investigate and to publish information concerning engineering problems of a more or less general nature that would be helpful in municipal, rural and industrial affairs.

      (b) To undertake extended research and to publish reports on engineering and scientific problems.

      The control of the Station is vested in a Station Staff consisting of the President of the University, the Dean of the College of Engineering as ex-officio Director, and seven members of the Faculty. The Staff determines the character of the investigations to be undertaken and supervises the work. For administrative purposes the work of the Station is organized into seven divisions—

      1. Forest Products

      2. Mining and Metallurgy

      3. Chemical Engineering and Industrial Chemistry

      4. Civil Engineering

      5. Electrical Engineering

      6. Mechanical Engineering

      7. Physics Standards and Tests

      The results of the investigations are published in the form of bulletins. Requests for copies of the bulletins and inquiries for information on engineering and industrial problems should be addressed to the Director, Engineering Experiment Station, University of Washington, Seattle.

      BULLETIN

      UNIVERSITY OF WASHINGTON

      ENGINEERING EXPERIMENT STATION

      MOTOR TRUCK LOGGING METHODS

      BY

      Frederick Malcolm Knapp

      Student in the College of Forestry,

      University of Washington.

      SEATTLE, WASHINGTON

      PUBLISHED QUARTERLY BY THE UNIVERSITY

      APRIL, 1921

      Entered as second class matter, at Seattle, under the Act of July 16, 1894.

      CONTENTS

      INTRODUCTION

      In this paper an attempt has been made to bring together some useful facts concerning the application of the motor truck to the logging industry. The term motor truck as here used is applied to the ordinary truck type of motor vehicle with trailer adapted to carrying logs, and does not include the tractor and the caterpillar tractor. These latter types present special problems of their own. In the following pages the discussion of motor truck logging is premised upon conditions as they exist in the forests of the Pacific Northwest.

      HISTORY OF TRUCK LOGGING

      Motor trucks in the logging industry are a comparatively recent development. As nearly as can be determined, the first use of a truck in a logging operation was made in this region by Palms and Shields near Covington, Washington, in the spring of 1913. Since that time various types of road construction suitable for heavy trucks have been devised and the use of the motor truck for logging has steadily increased until at the present time there are about six hundred trucks operating in the woods in the Northwest.

      The first real progress in the use of the motor truck for logging purposes came with the development of the trailer. Although the motor truck has been brought to its present high state of perfection in eastern factories the problem of adapting it to the hauling of massive logs was solved in Seattle, Washington, with the perfecting of a trailer which could carry unprecedented loads and stand up under the speed attained by a motor truck. In the early attempts to design a trailer, it was found that too great tractive effort on the part of the truck was required if the trailer was patterned after older types with simply increased dimensions in all of its parts. Through successive improvements the modern form of heavy duty trailer was finally evolved. It has solved a serious problem by permitting the hauling of heavier weights with the aid of the trailer than is possible with the use of the truck alone. With the help of the trailer and an adjustable reach, the motor truck has successfully entered the logging field.

      In the Pacific Northwest tracts of

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