80 Report on Trials of Plows. 



bolt, either passing up through the front of the standard and the 

 beam, as at j, Fig. 5, or I pass a screw bolt down through both 

 the beam and the top part of the standard, and fasten the neck 

 of the screw on the inside of the mould-board, atj, Fig. 4. 



"Either of these modes will permit the beam to move on the 

 top of the standard in the manner of a swivel, so as to turn the 

 fore end of the beam to the right or left at pleasure, which I 

 consider an object of importance in the construction of a plow. 

 The hind end of the beam is then fastened to the inside or out- 

 side of the handle, iv^ Figs. 4 and 5. The other handle is fastened 

 to the mould-board with two small screw bolts, and the two han- 

 dles connected by two rounds u u, Figs, 4 and 5. Thus framed, 

 if it be wished to set a horse plow to work, after three horses 

 abreast, I fit a block of wood in between the handle and the end 

 of the beam of about two inches thick. (See x, Fig. 5.) It then 

 is necessary to put a brace from the screw bolt that fastens the 

 beam to the handle and fasten it to the handle .above with a small 

 screw bolt. Fig. 5. Thus constructed, the plowman can raise the 

 end of the beam by putting a bit of leather or wood between the 

 top of the standard and the beam; if, on the contrary, he Avishes 

 to lower it, he can do so by diminishing the thicknesss of the 

 block under the beam, or he may raise or lower the end of the 

 beam where it rests against the handle. He may give the plow 

 more or less land by adding to or diminishing the block between 

 the handle and the end of the beam, or by loosening the upper 

 screw that fastens the handle to the mould-board at z, and driving 

 a wedge between the mould-board or the handle more land will 

 be given, and be reversed. Thus the plow may be readily 

 adjusted as convenience may require; and should the wood spring 

 it can be set right without difficulty or delay. 



"The improvement, therefore, which I claim to have invented 

 in the stocking of the plow consists in enabling the plowman 

 thus to adjust the stock at his pleasure, the introduction of the 

 blocks between the beam and the standard and between the beam 

 and the handle, the use of the wedge between the mould-board 

 and the handle, and the particular modes of fastening the beam 

 on the top of the standard and the side of the handle for the pur- 

 pose of adjusting the plow so as to give more or less land or depth. 



^^ 8eventh — Of the coulter: If the locked coulter be a^Dplied, it 

 is put in a rib on the point of the wrought iron share, much in 

 the usual form, and passed through a mortise in the beam in the 



