126 
Report on the Trials of Sheaf-Binders 
n is a link which couples the plate k to the plate I, and retains k at its 
proper inclination, the plate, I, resting at its lower extremity against the side 
of the hopper. 
The side of the hopper next to the cup-wheel carries a plate, o, which 
turns on a pivot, p ; this plate serves the purpose of covering the space 
between the top of the hopper (in rear of spindle /) and the lower edge of the 
plate k. 
When taking out the cup-barrel with its spindle, or when it is desired to 
shut off the seed for reaching any of the conductors, the plate I is brought 
into a horizontal position and this pulls the plate k away from the cup-wheel, 
causing it effectually to close the top of the hopper m, and allows free exit to 
the cup-wheel and spindle. 
Fig. 32. — Mechanism of Smyth's Drill for regulating Hill-side 
Delivery. 
The following particulars explain the Figs. 32 and 33, and illustrate the 
mechanism for regulating hill-side delivery : — 
a, cog-wheel on nave of carriage- wheel (22 cogs). «■ 
a', ditto ditto (24 cogs). 
h, cog-wheel on end of counter-shaft c (16 cogs). 
d, Hollow spindle into which c slides end ways. 
e, cog-wheel (14 cogs) secured on end of hollow spindle d. 
f, intermediate cog-wheel, which communicates motion from e to g. 
g, cog-wheel attached on end of cup-wheel spindle. 
i, radius plate to which the radius arm h is secured and adjusted, so as to 
bring the intermediate wheel / correctly into gear with the various sized 
change wheels which are applied to the cup-wheel spindle s. 
k, bolt by which radiating-arm is secured to radius-plate (this bolt fitting 
into the grooves m and n. 
p, catch for retaining support-plate in position. 
