LOGGING IN THE DOUGLAS FIR REGION. 45 



the expectations of the manufacturer ; for, if it does, it will make a 

 great saving in timber and human energy, also a reduction in logging 

 costs. 



The possibilities of the device were demonstrated before the mem- 

 bers of the Pacific Logging Congress at Eureka, Cal. An 8-foot 

 redwood, having an adverse lean of 5 feet, was thrown by the jack 

 in a direction opposite to the lean in 13 minutes, notwithstanding 

 the fact that 10 inches of " wood " was left uncut, and had to be 

 broken by the power of the jack before the tree could fall. Other 

 demonstrations have been made with equal success. One operator, 

 working in a hard show, has used an earlier model for about 2 

 years with very satisfactory results. It is said that in a competi- 

 tive test one set of fallers, aided by a jack, felled a 6^-foot tree hav- 

 ing a lean of 6 feet in 3^ hours, while another set, working with 

 wedges, required 13-| hours to fall a 5^-foot tree having a lean of 

 5 feet. 



■ PORTABLE DRAG SAWS. 



The portable drag saw is operated with either steam or gasoline, 

 and is adapted for cutting saw logs, shingle bolts, cordwood, fuel 

 for logging engines, etc. It can be operated by one man. A num- 

 ber of operators find its use profitable in bucking up fuel wood for 

 logging engines. One machine may be used for two engines where 

 they are located near one another. Where the ground is not too 

 rough and the timber not too large, it may be used to advantage 

 in bucking up trees into log lengths at the landings, especially where 

 the timber is roaded to the landing. 



Some think that the gasoline drag saw is not so well adapted for 

 use by loggers as the steam saw, since it has not the capacity of the 

 steam saw of the same weight and is more complicated in its make-up. 

 However, improvement in gasoline drag saws has reduced the weight 

 and increased the capacity so that they are now being universally 

 installed, replacing cutting of fuel by man power. A gasoline saw 

 is easily portable and can be taken anywhere by two men; it is noc 

 dependent upon a separate power plant and does not have to have 

 the log moved to it for each cut. One man operates the saw and 

 moves it to the log. 



One steam saw has a 3|-inch cylinder and a 30-inch stroke, running 

 225 strokes per minute. This machine is intended for use with a 6- 

 horsepower vertical boiler and may be carried on a sled or low- wheel 

 truck. The steam is conveyed in a f-inch pipe, joined in 8 or 10 foot 

 lengths with flexible couplings. Steam may be conveyed successfully 

 in this way for 300 feet. One hundred pounds steam pressure is 

 ample for successful operation. Steam may also be taken from log- 

 ging engines or other boilers through a similar system of piping. 

 A hand rope gives the operator complete control of the saw when it 



