AGRICUI.TT'RAI, MACHINERY 



1813 



in the attached figure, the saw is mounted on a V-shaj^ed frame of which 

 the lower end rests on the ground while two clamps fix it solidly to the tree 

 to be sawn. When a cut is finished the machine can be shifted bj' two men 

 to the place where the next cut is to be made. 



As an example of the work done by this portable saw in 10 hours, the 

 writer gives : 



Maximum 35 cords (4480 cub. ft.) of wood in billets (.f 4 feet. 



Minimum 15 cords (1907 cub. ii.) >■ » » 



Avetag 20 cords (2546 ciib. ft.) » « » 



1308 - Lorry for Transporting Timber in Long Lengths.— The implements and Machinery 



Review, Vol. 42, Xo. 498, p. 663. I^ondon, 1916. 



The Yorkshire Commercial Motor Company of lyceds has built a lorry 

 carrying 6 tons of wood in lengths up to 45 feet. Ordinary vehicles do.'not 

 allow of the carriage of long pieces because of the limited platforms of the 

 lorries and also on account of the unequal distribution of weight. To avoid 



lyorry for transporting timber in long lengths. 



these disadvantages the above company has fitted the chassis with two trest- 

 les of different heights ; the rear trestle is lower than the forward trestle and 

 is fixed to the frame directly over the back axle ; the forward trestle is 

 fitted just behind the motor. The respective height of the two trestles 

 allow pieces to be sloped conveniently. This arrangement together with 

 the well proportioned design, distributes the weight uniformly on the 

 bearing points of the vehicle. Another advantage of this lorry is the rela- 

 tively long platform compared with the space occttpied by the steam 

 generator and the machinery. The latter is of simple type, with large bear- 

 ing surfaces, and is ver}^ well balanced. The generator and fire-box are 

 of such dimensions that the tubes are always covered with water whatever 

 the angle" of tilt assumed by the lorry. 



