The Trials of Hand-Power Powder Sprayers . 257 
into different shapes to alter the form of the spray, is made 
of German silver, and guaranteed not to break. The regulation 
of the feed is good. . 
A strong point in its favour (and this applies to all knapsack 
powder pumps) is the portability for work among fruit trees 
and bushes where there is very little room ; this pump will be 
found of great use. 
The price of the Moellenkamp Pump, 23s., is very low 
and was considered good value. This machine is of the single 
stroke variety. The makers make a machine exactly the same, 
but with double acting bellows at a little extra cost. The 
capacity of the pump shown was 22 lb. of powdered sulphur. 
First Prize Knapsack Powder Spray Pump. Exhibited by F. W. Moellenkamp & Co. 
The pump shown by Messrs. Pilter & Co. is a knapsack 
of the double acting diaphragm bellows pattern. The bellows 
are protected with a metal top which can be taken off to 
renew the bellows if required. The price of this pump is 
30s. 
The distribution of the powder was very even ; lance was 
light and handy in construction. This pump was specially 
good for low work, such as powdering low bushes, strawberries, 
potatoes, &c. The bellows did not appear to be powerful 
enough to distribute powder against a wind upon high trees ; 
it was felt that the regulation of the quantity of powder 
discharged was not quite so good as should be ; this is a 
difficulty with all hand-power distributors. 
The “Pilter” is easily taken to pieces, and all parts are 
renewable. The capacity, is 28 lb. powder. 
VOL. 74. 
K 
