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Machine for removing Plants in Tubs. 



Art. IX. Description of a Machine for removing Orange Trees and 

 other Plants in large Tubs or Boxes. By Mr. John Davidson, 

 Gardener to the Marquess of Ailsa, at St. Margaret's, Middlesex. 



Sir, 

 In consequence of the great inconvenience hitherto experienced 

 in the removal of large orange trees, in tubs or boxes, from the 



orangery to the plea- 

 sure-grounds, &c, I 

 lately got made for the 

 Marquess of Ailsa, by 

 Messrs. Cooper and 

 Hall, Drury Lane, 

 London, a machine 

 which answers the pur- 

 pose exceedingly well, 

 and of which I send 

 you a sketch. {Jig. 12.) 

 This machine is of 

 an oblong form, 4 ft. 

 10 in. long, 4 ft. wide 

 in the clear, and 3 ft. 

 8 in. high. It is fixed 

 upon three cast-iron 

 wheels ; two of 30 in., 

 and the other of 1 8 in. 

 in diameter ; the latter 

 turning in a swivel, 

 and acting as a guide 

 to the machine. The 

 frame is of oak, with 

 a movable back, as 

 shown in the sketch ; 

 and it is fastened by 

 means of four strong 

 iron pins dropping into 

 iron plates upon the 

 oak frame ; which dif- 

 fers from the others 

 hitherto used in this 

 country, in having no 

 bottom. When a tree 

 is to beemo ved, this 

 movable back of the 

 machine is taken off, 

 and the machine 

 pushed to the box, 

 thereby, in a manner, 



