195 



MISCELLANEOUS IMPLEMENTS 

 EXHIBITED AT DONCASTER, 1912. 



The entries this year for competition for the Society's Silver 

 Medal show a falling off from last year both in number and 

 interest, there being only forty-seven entries by thirty-one 

 firms, as against fifty-four in 1911 and fifty-eight in 1910, and 

 the Judges were only able to award two medals. This would 

 point to a lull in the inventive activities of our agricultural 

 implement manufacturers. 



The following are the two awards that the Judges were able 

 to make : — 



Catalogue No. Exhibitor. Nature of Implement. 



830 Messrs. Trewhella Bros., Winch Grubber for pulling 



6 Alma Street, Soho, Birmiughain. out trees and stumps. 



3461 Mr. Alfred Hoyle, Don Foundry, Dry Sprayer or Fungicide 



Doncaster. Distributor for Potatoes. 



No. 830, Stand Ul.—The Winch Grubber exhibited by 

 Messrs. Trewhella Bros., G Alma Street, Soho, Birmingham, 

 is described as for pulling out trees and stumps, hauling logs, 

 and general use by contractors. Price 261. 10s. — This consists of 

 a strong miniature winch worked by means of a long lever with 

 a ratchet and pawl movement instead of the ordinary handle. 

 There are a pair of small wheels fitted to the front part to 

 enable it to be easily dragged about from tree to tree. There 

 are two speeds, the quicker worked by a ratchet and pawl on 

 the inside of the winding drum — this is used for hauling in 

 the slack of the rope and so saving time. The slower speed 

 is for the actual pulling up of the tree or stump, and is also 

 actuated by a ratchet and pawl, but at a very low speed, the 

 long handle being worked backwards and forwards, taking one 

 tooth for the movement of the handle in either direction. 



The ropes used are of wii*e and capable of withstanding 

 a strain of from 20 to 30 tons. One end of the rope being fixed 

 to the winch the other is passed round a standing tree or under 

 the root of another stump in the ground. The anchorage must 

 naturally be more solid than the tree to be uprooted. The rope 

 is then passed round the pulley of a snatch block, the side of 

 which opens in a very simple manner to avoid having to thread 

 the rope through. The rope is then brought back to the winch 

 and fastened to the drum. A wire rope is now fastened to the 

 tree to be uprooted, either direct or to a sling that has already 

 been passed round it, and the end is brought back to the snatch 

 block where there is an ingenious clip round which the rope 



H 2 



