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LUMBERING WITH LORRIES IN CANADA.

20th May 1924, Page 24
20th May 1924
Page 24
Page 25
Page 24, 20th May 1924 — LUMBERING WITH LORRIES IN CANADA.
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Which of the following most accurately describes the problem?

Difficult Haulage Tasks being Efficiently Performed by a Fleet of British Vehicles.

THEV

IIIJOUB tasks which-face the average commercial vehicle in use in this country—or in any country, for that matter, where a comprehensive system of highways has been developed—can readily be accomplished, and usually with something in hand on the part of the vehicle; but in certain spheres of activity, such as in the lumber woods of Canada., where motor lorries are now Used to ,a very large extent, such vehicles are very often taxed to their utmost. limits.

Until more recent year the general method adopted for conveying the trunks et. 'felled trees from the timber forests bas been by water, which provides a highly satisfactory medium, but in less favoured districts every possible advantage is taken of natural gradients down which wooden-' slipways are devised in Order that the felled trunks' may be ieadily slid direet to the sawmills, or to

a point, from which they can -be easily transported to them. Inability to use either of these methods often necessitates the employment of animal power, the timber Wine' hauled on, a composite type of vehicle drawn by horses.

There are many transport difficulties associated 'With-tree-fellinigChiefly due to the fact that the forests are often far removed from any adequate system of highways, and the making of a road --and we use the term as we appreciate it in this country—would, not be justified on account of the considerable expenditure which would be involve& Smile idea 'el tho difficulties which are encountered are, perhaps, effectively conveyed by the pictures which appear on this' page, showing, as they do, logging operations in the area worked by the Campbell Co., of Forbes Bay,

British Columbia. . This company employ a fleet of four Leyland lorries, which are used with a special form of trailer. They have been found to give the utmost satisfaction in spite of the extremely rigorous conditions under which they are working. The vehicles are certainly performing tasks which could not efficiently and economically be undertaken by any other form of -transport unit

To meet their requirements the Campbell Co. have devised a. most unconventional form of highway which meets their needs in a satisfactory manner. Several of our illeetrations show the principle of the construction, which consists of a track formed of baulks of timber which have been flattened on two sides and laid parallel on a foundation of rough-log "sleepers," these in turn being secured to the surface of the ground in a, suitable manner. At the outer edges of the track other rows of timber, at a somewhat higher level, form

what may be termed kerbs, and ensure that the vehicles using the tracks maintain a proper course. There have been many difficulties with which the company have had to contend in the formation of these tracks owing to the unevenness of the ground -over which they have been laid, and, although cuttings have been made in many cases, there are many gradients varying in severity up to lein 8.5 which have to be negotiated. To ensure adequate adhesion when the vehicles are travers ing these stoop inclines, especially when the value of the tracks has been impaired by a spell of bad weather, a fin. cable is affixed to the planks, as shown in detail in the oval illustration of our group of pictures. Some of the pictures give an excellent impression of the natural beauty of the surroundings in which the camp is located, where, it should be mentioned, the majority of the trunks which have to be felled are 6 ft. in diameter and upwards of 175 ft. in length. . _ A single track is, of course, only used, and for this reason three " passing " bays have been arranged, and at this point up-going empty vehicles await the arrival of the descending lorries. The vehicles which are engaged on this work are, of course, called upon to transport exceptionally heavy loads, but, in spite of this and the fact that steep gradients have to be negotiated, the brakes have been found to be most effi cient, and no undue wear has been ex perienced.

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