110 
Report on the Miscellaneous Implements 
impossible for these to become displaced on the finger bar while 
the machine is at work. 
Mr. T. G. Fawcett, of Wliitehouse, Leeds (Art. 3579), 
showed a Brick and Tile Pressing Machine, in which the 
toggle-joint, commonly in use in brick presses for squeezing 
the clay into its mould, is modified, in a very ingenious 
manner, so as to give a second and heavier pressure to the 
brick, on the return movement of the toggle. This is accom- 
plished by connecting the moving joints of the toggle by a short 
link in such a way that its arms, going forward, stand at a slight 
angle with one another, while on the return stroke they are 
vertical, or nearly so. 
In this way the piston, after its first stroke, is caused to 
retreat slightly from the surface of the brick in course of press- 
ing, allowing the air between itself and the clay to escape, while 
it exerts a final, and heavier, pressure upon the return stroke of 
the toggle. The simplicity and ingenuity of this arrangement 
are worthy of high praise, while the device ensures a better sur- 
face and greater uniformity of thickness in the bricks produced, 
without the loss of any time in the process. 
Mr. Fawcett further showed a new and ingenious method of 
oiling the surface of bricks in the mould. A small fan, driven 
from the machine, urges a blast of air through an " aspirator," 
into which oil is falling drop by drop. A fine spray of the 
lubricant is thus produced, 
Fig. 14. — Hardy's Disinfegrator. 
which, being evenly distributed 
over the whole surface of the 
brick-face, improves its finish, 
while insuring the perfect re- 
lease of the piston from the 
clay on the upward stroke. 
The Hard!/ Pafent Fide 
Conijmni/, Sheffield, showed a 
Disintegrator (Art. 3G64), 
which combines the percussive 
action of high-speed machines 
of this kind with a grinding 
jirocess, progressing step by 
step, and gradually reducing 
the materials dealt with to any desired degree of fineness. 
Two cast-iron rings, one fixed and the other revolving, are furnished, on 
the peripheral surfaces of their respective discs, with chilled teeth, arranged in 
concentric circles, and interlocking one with the other in the manner shown 
in the drawing. Here and there, in both rings, a tooth is missing, in order 
to give access to the material to be acted upon. The teeth are largest 
