594 Report of the Trials of Ploughs, Harrows, ^c, at Hull. 
Pig. 97. — C. Clay's Cultivator and Broadshare, No. 479. 
a. One side of frame. d. Wheel arm^ showing attachment 
b. Portion of carriage to frame. 
c. Section of angular bar actuated by e. Tine. 
lever and arm. f. Guide holding catch'shown at g. 
tines can thus be used, according as the land is clean or foul, or whether a fine 
or rugged condition is required. This will he readily understood by reference 
to the accom])anying drawing of a tine (Fig. 98) in 
Fig. 98. the position for work ; the bent form of the tine is 
undoubtedly advantageous, inasmuch as weeds that 
come in contact under the surface pass upwards and 
backwards ; there is less resistance from the soil, and, 
when the lever is up and the tines out of work, they 
are placed close under the frame and clear of every- 
thing (see Fig. 97). 
The action of the lever will be best understood by a 
glance at Figs. 97 and 99. The latter shows one of the 
larger cultivators in work, fitted with thelevers to wtieels 
and fallow hook c. It will be seen that when in work 
the lever is in the catch or notch at a. Figs. 99 and 100. 
Should it be desirable to raise the tines, either because 
of rubbish or at the land's-end, the lever is released by 
means of the handle, and either raised to b or allowed to 
take the position shown in Fig. 97. The form of the tines 
causes them to turn backwards to such a degree that the stubble, weeds, &c., 
producing the impediment, fall out, and the tines can be let down again into 
the soil. Tliis is a point of considerable importance, no time being wasted at 
the headland in cleaning the tines. 
The ])itch of the shares can be regulated by altering the position of the 
catch, which is purposely made movable ; all that is necessary is to unloose 
