3 04 $fo Four-coulter d Plough. Chap. XI X"* 



are feen on the Piece in Fig. 16. There is no need 

 to fay how they mud be nailed on with maay Naiis 

 made for the Purpofe. 



Fig. 19. Is the Iron Collar, fattened to the Beam 

 by Two fhort Crooks A, B, which take hold of Two 

 fborcPins driven into the Plough juft behind the Se- 

 cond Coulter-hole, one on one Side, and the other on 

 the other Side of the Beam. The Crook A is feen 

 on the left Side of the Beam near r, in Fig. 2. the 

 Crook B doing the fame on the other Side of the 

 Beam, which is feen near a, in Fig. 3. C is the 

 Crook (for its Shape called a C) which holds the Tow- 

 chain to the Collar by the Link D, being Part of the 

 laid Chain taking hold of its Fore-claw ; the other 

 Claw taking hold of one of the Five Notches of the 

 Collar: This Collar is partly feen at d, in Fig. 2. 

 Both the Claws of the Crook (or C) turn upwards, fo 

 that they cannot take hold of any thing that may rife 

 under the Plough : The Ufe of the Notches is to 

 help the Direction of the Point of the Share, which 

 has been defcribed by the priclrd Lines under Fig. 1. 

 As the Point of the Share wears, it inclines a little 

 more towards the Right, and is remedied by moving 

 the Crook into a Notch nearer to the Left, which 

 will direct the Point a little more towards the Left : 

 This is more eafy to be done here than in the common 

 Plough, whofe Collar moves round the Beam : We 

 can, by changing the Crook from one Notch to an- 

 other, incline the Point of the Share towards the 

 Pvight or Left at Pleafure. The Length of each 

 Side of this Collar is a Foot long. 



The Tow-chain is befl feen in Fig. 3. where the 

 Link Y is that which paffes thro 5 the Box, and is pin- 

 ned in by the Stake, as has been fhewn in Fig. 1. 

 which Stake is commonly nailed to the Box, to pre- 

 vent its rifing up. When we would draw up the 

 Plough a little nearer to the Crow-ftaves, we take 

 hold of the Crook by a Second or Third Link. 



Note, 



