The farmer and mechanic. [volume] (Raleigh, N.C.) 18??-19??, 1911-03-14

spraying machinery has become -
suecial importance during recent 80
through the Interest in irult sio"1n7
aroused among farmers ana Ho'
in general.
Many people are unacqlaihten
suraying machinery ana api'
operations. SO that cafeiul 49,.
should be given the 3dp'eo,' 80
rn,ch success in fruit CROWNS =
achieved.
cnravine machinery has been pass
ranab a period of transition dur
ING the last decade, and pumps 80
~, different kinds OF spraying az
.,id,x Incoming special pnIpo9s
-~1cbinas designed to spray SoHae
certain crops or series OF crops "nle41
are treated in a similar mdinei' -
axampie this evolution mas deNeiopeu
+,action machine of large capac1to
which will furnish lldnlds az ms
nressure to do grape, helo ana potaeo
.nrayiny thoroughly with a Wlnlihuii1
of c~pense for labor and ma,er'ai.
This is usually a tWo-Wheeieu 49,
tion-nower type Of machine, IN VINO"
the mower is transmitted from the
VIII eels by gears, chains, ecentrics' or
o,ns and the horse does the WORK
i,Staad of - man at the enc OF d
pump handle.
The principal factors to be con
.iderea in choosing "a spray pump are
capacity, simplicity, durablhN "h'
cost. ~ e
A nump of larger capacity than IS
actually needed vii always prove
more satisfactorily than one WHICH O."
short of the demands maze UPON =
AS trees and orchards increase II siN.,
the importance of having a hlachile
II .-aSJ. 4hn fTlII u
cover a. considerable area qulte fapiu-
w. becomes apparent.
The must either purchase q
new machine of large capacity "
look ahead at the outset, n pioNiu1
for the future. -Four acres ot 5oou
hearing rchar is worthy Of a power
snrsyer if the result are deslfeo,
and nothing of smaller capacity thah
a large hand pump should De con,
sidered. A larger or smalier orcla,"
will require q pump proportlonately
larger or smaller, but there IS a 1li1llI
for even the largest machines ana
twenty acres of large trees IS ABOUT
all one large power spfayer was ever
designed to spray.
Spray pumps should be as simple
as possible, with a minimum OF paris
which ordinarily require attention:
These parts should be easily replaced
when worn and should not be eNpen-
siye when replacement becomes neces-
sary. The ideal sought demands ease
OF repair, a minimum of parts, ana
these readily accessible, When worn OF
not working properly.
On the quality and kind OF material
the excellence of the workmanship,
together with weight n strength
depends the durability or lasting quai-
tiles of the machine. Good design Is
also an important factor. Cheapness
quite often means that inferior mat
erial has been used, and that lne11c-
lent or negligent laborers, who slight
their work by accident or design, have
been employed IN the pumps manu-
facture.
The body or frame of the pump
should be. heavy and strong enough
to withstand hard usage n eXcesslV'
strain. Bearings are often too SNORT
gears too narrow and too light II
weight. Oil cups are omitted Wher'
they are needed. and the frame upo1
which the machine is is s.
light that it is wrapped and buckle
at every stroke of the pulnp
There are a great many hin
hic must be considered and looked
into very carefully before a sprayinl
machine is finally decided upon.
4 humber of hand-pumps are pat
termed after the ordinary water force
pump. With these the Stuffiins DO
is the source of so much friction
tina barrel pumps of this Typ
should be avoided. Simple types Q
pumps, without a stuffiins box shout
be selected. Piunsers with a plum
ger cup, or inside plunger-packlns, re
uuires less power to operate then
Outside plunger packing or a stuttiin
box on the outside Of the plunger,
another method used in order to tacl
itate packing and obViate troub
Double-acting pumps must necessar1l
have h stuffiing box and plungel
packing too. but some or the strons
est and most durable power pumps al
of this type. Of the two latter typ
I have no particular choice, as eat
has it's merits, and each requires b
the same amount of care. The sin
pie. s~ingle-cutting pump With a plum
group or plunger packing on the on
S;lp M inside ro1i,iraS faSS ottGnftt