732 
Report on the Exhibition of Implements, 
awarded first-class mention for a great improvement in band- 
saw machinery (Knowling's patent). The great peculiarity of 
this machine is that the standard moves, altering the angle of 
the saw", whilst the table maintains a horizontal position. This 
allows of timber being cut at any angle. The saw can be canted 
to an angle of 45 degrees. The table is fitted on rollers to follow 
the saw ; hence the saw does not drag the timber along the table, 
as is the case with most band-saw machines. The main frame 
has trunnions at its base, is journalled in the foundation-frame, 
and is moved by a screw underneath the table, worked by a 
hand-wheel, which cants the screw and moves the table at one and 
the same time. Another important feature in this machine is 
the way in which the top saw-wheel is bracketed to the standard, 
by means of a pivot, and supported by indiarubber tension- 
springs. The adjustment Ijy a hand-screw is very sensitive. 
The arrangement for adjusting the plane of the upper band- 
pulley, so as to make it coincident with the lower one, is simple 
and good. Any small obstacle getting between the saw and the 
pulleys does not break the saw. The machine is made in three 
sizes, and was catalogued as follows : — 
Size. 
Diameter of 
Driving 
Saw Wheel. 
Depth with 
Cut. 
Diameter of 
Driving 
Pulleys. 
Average 
Power 
required. 
Price. 
No. 1 
SO Iuch.es 
10 Inches 
12 Inches 
Half horse 
£ 
45 
„ 2 
36 „ 
13 „ 
14 „ 
One „ 
55 
3 
18 ., 
IC „ 
Two „ 
75 
Messrs. Naldcr and Naldcr, Limited, have introduced into 
this country a much-desired combination, viz., a portable com- 
bined threshing and straw-elevating machine. Something of 
the same arrangement has been used in America, but only, as far 
as I know, capable of delivering the straw in the same direction 
as that in which the machine stands, whereas this can be worked 
with equal effect at any angle. Moreover, the frame of the eleva- 
tor is so jointed that it can be folded very snugly for travelling. 
The following illustrations (Fig. 28) — showing 1, the machine 
as fixed for work ; and 2, as packed up for travelling — will give 
an idea of the appearance, and assist the reader to understand 
the means by which this desirable result is obtained. 
The elevator is affixed on the straw-delivery end of the thresh- 
ing-machine, being mounted on a horizontal axis, which allows, 
the delivery-end of the trough to be raised or lowered, and on a 
vertical axis, admitting of a lateral or side-motion j and the 
