Report on Miscellaneous Implement Awards at Derby. 609 
condition for allowing of good work. Nevertheless, the imple- 
ments of both firms, when once properly arranged, did fairly 
well. Messrs. Howard's wheels appeared too small to secure all 
the advantages which should result from the substitution of a 
rolling for a sliding action, but this is a detail that admits of 
ready alteration. No accurate trial was made, as the Judges 
considered that neither of the machines was sufficiently perfected 
to merit a Medal. 
In Messrs. Howard's Gang and Multiple Ploughs, a new and 
ingenious arrangement for lifting the ploughs out of work has 
been introduced, by the application of a brake-arm connected 
with the crank-shaft to the rims of the travelling wheels. 
The same result is obtained by a more complicated action 
through friction-bands acting on grooved friction-wheels, which 
are placed on the hub of the travelling-wheels. When, therefore, 
by a leverage from the driver' s-foot, the bands are sufficiently 
tightened, the revolution of the wheel acts on the crank-axle 
and lifts the plough out of ground. 
It will be understood that the travelling-wheels are mounted 
loosely on stud axles, carried by crank-arms attached to a 
hollow cross-shaft B. This shaft is free to turn in bearings 
carried by the plough-frame, to the inclined cross-bar of which 
the ploughs are attached. 
The side beams of the plough-frame are connected together 
in front by a cross tie-rod, C^, which serves also for the fulcrum, 
for the rocking-frame E, to which the draft-pole is secured. 
The hollow shaft B is fitted with a rod, F, which projects 
through its opposite ends, and has attached to it the elastic metallic 
friction-bands F^. Grooved friction-wheels, A^, receive 
these bands. Keyed to one end of F is an arm, F^, which carries 
a stud-pin to receive one end of the friction-band F^, the other end 
being similarly attached to the extremity of the rod F. The 
tightening of the friction-bands upon their wheels is effected by 
a treadle-lever, F^. This lever has for its fulcrum a pin or rod 
at the front of the framing, and by means of a link, F*, which is 
jointed to a short arm, F^, keyed to the rod F, axial motion is 
imparted to the rod F, when pressure is put on the treadle-lever, 
and the bands are thereby caused to grip their respective wheels. 
In so doing, the forward motion of the wheels causes the frame 
to be lifted, and at the same time gives the hollow shaft B a 
quarter turn, or thereabouts, in its bearings. Figs. 7 and 8 
(p. 610), which give the elevation and plan of a three-furrow 
plough, will explain the mechanism described. 
The draft-rod E^ is extended rearwards, to carry an over- 
hanging bracket, E^, from which depends a chain, E^, attached 
to an arm, B^, keyed to the hollow shaft B. When this shaft is 
