36 ANNUAL OF SCIENTIFIC DISCOVERY. 



throws out the husk. In this way, says the inventor, 200 bushels 

 a day can be shelled, or with a large power machine, 1,200 bushels in 

 ten hours. The price of a hand machine is $18 to $25. 



Corn Hulling Machine. This machine is a frame 5 feet long, 2^ 

 feet high, 1^- feet wide, supporting a wooden case lined with sheet iron 

 in the form of a cylinder about a foot in diameter, 4 feet long. This 

 is made in parts, so that the top lifts up to get at the interior. In the 

 cylinder runs a wooden shaft 4 inches diameter, armed with three 

 square files in f&ur rows, thirteen in a row, which project four inches 

 from the shaft. A band being applied to the pulley on the end of the 

 shaft, it is made to revolve rapidly, and the grain being fed slowly 

 through a hole in the top of a cylinder, has all the hulls filed off and 

 blown out through openings. 



Archimedes' Root Washer This is a frame and water box, holding a 

 barrel made of open-work staves. It is 4 feet long, 2^- feet diameter, 

 and about 4 feet high. There is a hopper at one end, and a discharge- 

 spout at the other. The internal arrangements are such that, when 

 the barrel is turned one way, the roots remain in the water, but when 

 it is reversed, they are screwed up and out of a hole in one end and 

 discharged into a spout, that deposits them in a basket. 



Ramsey's Improved Harrow. This new pattern of harrow, is made 

 of three wooden frames, say four feet square, "with thirty-two teeth. 

 The forward frame is placed cornerwise to the team, the two outside 

 bars of the frame projecting back about a foot beyond the side pieces. 

 To the inside of these projecting bars the outside bars of two similar 

 frames are hung by the end of the bar projecting about six inches for- 

 ward. The two inside corners of these frames are also hinged together, 

 so that each frame is drawn cornerwise forward, and being fastened 

 together by universal joints, adapt themselves to the most uneven 

 surfaces. 



Atkins' Automaton RaJcer. This machine was one of the most 

 simple, ingenious and yet effective pieces of mechanism exhibited at the 

 New l^ork Crystal Palace. It was invented by Jearum Atkins, of 

 Chicago, a bed-ridden cripple, who had not been in a harvest-field for 

 years, and who has never yet been able to witness the operation of 

 his ingenious and useful invention. The raker is intended to be 

 attached to any of the ordinary reapers, by means of a bevel-wheel, 

 about twenty-three inches diameter, upon a spur of which, on the 

 inside of the" rim, is a knob, workmg into the hollow end of an arm, 

 and by the mere turning of that wheel, without any other means, that 

 arm in its circular motion creates a motion of the rake, which is 

 exactly what the two hands of a man would be if he stooped down 

 and scraped up the grain with his hands which the reaper has cut and 

 laid upon the platform. The rake then turns round, opens its fingers, 

 lays down the wheat ready for the binder out of the way of the next 

 through, stretches out its arms, turns back to the platform and takes 

 up another load, and thus goes on its ceaseless round, the motion of the 

 reaper keeping the raker performing its work with unerring certainty. 



Gibbs' Rotary Spade. This spading-machine is composed of two 



