CURBS. 



43 



6. The gridiron bit (Fig. 54) has been specially devised to 

 prevent horses which have that trick, from getting their 

 tongue ever the mouth-piece. The "gridiron," which is meant 

 to lie on the tongue, revolves on the mouth-piece, and has 



c <b 



Fig. 50. Ward Union Curb with 

 Sliding Mouth-piece. 



Fig. 51. Curb with Sliding 

 Mouth-piece. 



Fig. 52. Ben Morgan Bit. Fig. 53. The Chifney Bit. 



a catch that prevents it from going further than just above 



the port. It appears to serve the purpose for which it was 

 invented. 



