PRACTICAL HORSESHOEING. 77 



RUSSELL'S SCIENTIFIC FOOT ADJUSTER. 



HOW TO USE IT IN ACCURATELY LEVELING AND BALANCING THE FOOT WHEN 



PREPARING IT FOR THE SHOE. 



This device is very simple and effective, consisting of a flat 

 metallic rim or bed-plate, similar in form to an ordinary horse- 

 shoe, to which is pivoted at tlie center of toe a movable quad- 

 rant (the quarter of a circle), the arc of which is graduated or 

 divided into 90 degrees, from the horizontal plane to the right 

 angle of the segment above, and which is operated by means of 

 a lever, working the sweep of the quadrant forward and back. 



A stationary indicator is also fixed perpendicularly to the 

 toe of bed-plate, and this registers the angles of the foot upon 

 the surface of the quadrant when the lever is brought forward 

 against the wall of the hoof. The lever is also marked to a scale 

 of inches and fractional parts, so that the height or depth of 

 wall is obtained at the same time with its degree of obliquity. 



The Adjuster Applied. — This arrangement is best shown by 

 the accompanying illustrations of the adjuster in position for use. 



Fig. 16. H, 11, upper surface of the bed plate of the ad- 

 juster (with quadrant projecting in front). 



Fig. 17. Side view of foot with adjuster applied to toe- 



A, A, rim of bed plate pressed firmly against bottom of hoof. 



B, B, lever for moving the quadrant and measuring height of 

 wall. C, stationary indicator registering the angular face of the 

 wall. D, arc of the quadrant inscribed with degrees as shown. 



Fig. 18. Front of foot with adjuster abreast of the quarter. 



Fig. 19. Adjuster registering the angle of quarter as seen 

 from the back of foot. 



Fig. 20. Leveling-plate to be used in connection with foot 

 adjuster. 



Other Mechanical Aids. — Fig. 21. Compass for spanning 

 and ascertaining the exact height of the wall at different points,, 

 necessary in leveling and equalizing same. 



