x 
New York AGRICULTURAL EXPERIMENT STATION. 161 
were used for the horizontal telescoping sections. The use of 
one-eighth inch tubing at end of arms together with one-eighth 
inch J’s and unions necessitated bushing the nozzles. The arms 
are adjusted, with regard to position, by means of a sliding sleeve 
attached to the vertical supply pipe. The motion is conveyed 
by means of adjustable levers which connect with a clamp on 
each arm. The sleeve is held in position by means of collars 
provided with set-screws. 
It has been stated that the utility of the telescoping joints 
in the vertical supply pipes carrying the arms, is doubtful. This 
does not apply to any of the other telescoping joints. The hori- 
zontal telescoping joints not only allow of contraction and exten- 
sion of the carrier for rows set different distances apart but also 
serve the purpose of a hinge joint when the arms are lifted for 
turning around. Those of the arms not only allow of lengthen- 
ing of the arm but also prevent breaking or wrenching of the 
carrier when nozzles are caught in the asparagus. This results 
not only from the ability of the joint to twist but also to pull 
out entirely, yet the joint can be packed firmly enough to prevent 
leakage and shaking or falling out. In fact, the combination of 
telescoping and union joints answers the purpose of ball and 
socket, or universal joints. 
The method of attachment of carrier to pump is shown in 
Figs.2and3. This connection serves as a partial support. The 
carrier also rests upon the horizontal supports connected with 
framework of truck as shown in Plate XIX, and upon an iron 
brace shown at db, Plate XVII. The same parts are shown in the 
various other illustrations. In addition it is anchored at points 
db; bi Plate XVII. These not only help to hold and steady the 
carrier but also serve as guides when lifting and adjusting the 
parts. 
The brake for lifting the arms is anchored to the cross of the 
main supply pipe at a, Fig. 3, Plate XVII, while the brake bar 
is attached to lateral supply pipe as shown in Fig. 4, 0, also in 
Plate XVI, 0. The work of this brake is shown in Plates XIX 
and XX. 
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