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DESCRIPTION OF A NEW KNAPSACK SPRAYER. 
By B. T. Galloway. 
Since writing the note in the last Journal, relative to a new spray¬ 
ing pump designed by us, all parts of the machine have been perfected, 
and two firms in this city, Albinson & Company, 2026 Fourteenth 
street, and Leitch & Sons, 1214 D street, are now manufacturing it. 
In view of the fact that any one has the privilege of making and sell¬ 
ing this pump we have thought it best to give a detailed description of 
it, accompanied by illustrations of such a character that any intelli¬ 
gent machinist can use them as working drawings. The demand for 
the sprayer will be largely confined to the spring and early summer 
months, and to those who contemplate manufacturing it we will say 
that it is of the utmost importance to have the pumps in stock at this 
time. As a rule we find that the men who use machines of this kind 
wait until the last moment before sending for them, consequently they 
are anxious to have their orders filled promptly which, so far as our ex 
perience goes, is never done. Hence, therefore, the importance of hav¬ 
ing sufficient machines on hand to fill all orders without delay. Com¬ 
ing now to a description of the machine we have first: 
The Reservoir (Figs. I and II).—This is made of 16-ounce copper, and 
Fig. I. 
