File:Canadian forest industries 1905-1906 (1906) (20338503339).jpg

Title: Canadian forest industries 1905-1906
Identifier: canadianforest190506donm (find matches)
Year: 1906 (1900s)
Authors:
Subjects: Lumbering; Forests and forestry; Forest products; Wood-pulp industry; Wood-using industries
Publisher: Don Mills, Ont. : Southam Business Publications
Contributing Library: Fisher - University of Toronto
Digitizing Sponsor: University of Toronto

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•4 THE CANADA LUMBERMAN July, 1905 three to eight hour, depending upon its thick- ness. The water is then drawn out of the tank, the outer door opened and the load rolled on to roller rack wagon for transportation to the yard. The company advise us that the process com- pletely removes all sap and pitch from the lumber and that stock thus treated will dry in the air in about one-half the usual time and can be thoroughly dried in an ordinary kiln in five days. The device is inexpensive and of their own design and the cost of preparing the lumber for the steamer about equal to loading it on to a dry kiln car. On this subject an exchange says: "Care in piling will do a great deal. By using narrow or too little, has-a harmful effect rather than otherwise. Out in Washington a number of years ago, a manufacturer tried the use of smoke in his dry kiln, instead of steam or1 hot air and claimed that the lumber took on a bright- ness that the steam kilns did not impart. He also found that the lumber was lighter than even air-dried stock. This might work in localities where the bulk of the lumber is kiln- dried, but none of these processes are practical for general use." 1 LOGGING OPERATIONS BY COMPRESSED AIR AND STEAM. The felling of timber and cutting it into logs by compressed air, then skidding the logs vto The first detail ot the system, to begin with the first step in logging operations, is the mechanism, driven by compressed air, which saws down the trees and then cuts them up into logs. This consists of a cross cutting saw, adjusted to an arm, which is fitted with a system of cylinders and pistons, acted upon by compressed air. The saw is brought to the tree or the log, by what is known as the shot- gun feed action in sawmills, only in this instance the saw is brought to the log instead of the log to the saw. The entire mechanism is mounted upon a truck or sleigh, of the ordinary size. This is hauled to the tree. The saw is then speedily adjusted to any angle de-
Text Appearing After Image:
BRITISH COLUMBIA MILLS, TIMBER AND TRADING COMPANY'S ROYAL CITY PLANING MILLS, VANCOUVER. ^ ^ Office." 2. Ready-made house-erecting'shed. 3 Steamer Belle'towing boom of logs to mill. 4. The effect of ^^^^y^^^^^f^ Flof^ng dr^a^n'rtandrng booiil. 5. Delivery end of dry kilns. 6. Shipment of 200,000 feet of specially-selected spruce oar stock for the British Admiralty. 7- Loading end of dr> k>'ns. 8. floating arag 9. Car-loading scene. 10. Booms of logs attached to standing boom. n. Dry kiln lumber shed strips between courses, piling the lumber so thatthe ends'will not touch,and leaving a vacant space, or chimmey up through the middle of the pile much can be accomplished to produce the desired results. A favorite process over in Michigan has been the sprinkling of the green lumber with salt. Many of the sawmill plants there have been operated in connection with salt blocks and the salt was easily obtained. The process consisted of sprinkling each course with a thin layer of salt,and the effect is said to have been good, though too much salt, the road hauling them to the rollway, by steam power is the gift of H. B. Frey, of Minneapolis, to the lumbering industry. This new invention is a complete system for logging, which, to a great extent, eliminates horses and the labor of men from lumbering operations in the woods. It is adaptable to any country, to any topo- graphy, the mountain, the valley, the plain and the steep hillside. It will operate under all con- ditions of climate, and in all kinds of weather. It matters not whether snow is on the ground, or "the ground covered with summer's carpet. sired to attack the tree, and after it is felled, the saw is moved alongside and the tree is quickly sawed into logs. There are move- ments and combinations of positions which per- mit the saw to adjust itself to a large tree standing on a side hill, on the level ground, or down in a declivity. These changes of position are made without the least hindrance, and can be secured almost instantaneously. The com- pressed air tanks are supplied by a gasoline engine, and these are mounted, together with the saw upon the same vehicle.

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