690 Beport on the Trials of Implements at Bedford. 



sides are formed of 1 5-inch solid elm planks. The shelvings over the wheels 

 are 11 in. wide x li in. thick. The tailboard is fastened up by a spring 

 at each end. The fore and hind harvest ladders are slightly concave, and are 

 hooked on to eye-bolts, which pass through tlie side planks. 'Jlie dimensions 

 of the body are 9 ft, 9 in. x 3 ft. II5 in. x 1 ft. 2f in., and its capacity is 

 47*04 cubic feet, while the area over ladders for harvest purposes is 95 

 square feet, being 15 ft. 10 in. long x 6 ft. broad ; thus a large amount of 

 sheaf corn may be packed on, forming a secure load. 



The carriage bolsters are of ash, and are blocked up by four blocks of wood, 

 instead of having continuous pieces of ash from side to side, as in Ball's 

 waggon ; the latter is certainly preferable, for it must render the whole load 

 more steady, and is also stronger. 



The iron axles, 2|--in. x 2-in., are continuous from side to side, and bolted 

 to the axle-bed by four clips and 2 bolts. 



The diameter of the front wheels is 3 ft. 4 in., with 13° of inclination to the 

 vertical, and 10 spokes ; that of the hind wheels 4 ft. 9 in., with 2° of inclination, 

 and 12 spokes : thus these were more cylindrical than the wheels of any other 

 waggon on trial. The oak spokes are mortised into the elm nave, with a 

 round shoulder, and in two sets (see Fig. 21), the alternate spokes being 1 inch 

 apart laterally. The spokes are square-shouldered into the felloes and fastened 

 from the circumference by a wedge driven into the centre of the spoke (see 

 Figs. 20 and 21). ]^y having the alternate spoke insertions a little apart the 



Figs. 20 and 21.— Sections of Wheel of 3Iessrs. T. Milford and Sons 

 Waggon, No. 4875. 



Fig. 20. — Lateral Section'. 



Fiof. 21. — Cross Section. 



nave is less weakened, because less is cut out in one direct circle round the 

 nave, and the wheel is thus also well braced. Tyre, 23 in. broad and f in. 

 thick. The gauge width of the wheel centres on the ground is 4 ft. II5 in., 

 and the wheel base, that is to say, the horizontal distance of the centre of the 

 fore from that of hind wheel, is 5 ft. 4 in., which latter was less than in any 

 other waggon on trial. 



A simple but jxiwerful break, under easy control of the driver, is placed in 

 front on the near side of the waggon. It is a compound lever break (see Fig. 22). 

 'ihe lever-handle c has its fulcrum on the far middle bar of the frame, its 



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