design of a reaper for use under chinese conditions
TRANSCRIPT
Retrospective Theses and Dissertations Iowa State University Capstones, Theses andDissertations
1948
Design of a reaper for use under ChineseconditionsYao ChiangIowa State College
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Part of the Agriculture Commons, Bioresource and Agricultural Engineering Commons, and theMechanical Engineering Commons
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Recommended CitationChiang, Yao, "Design of a reaper for use under Chinese conditions" (1948). Retrospective Theses and Dissertations. 16002.https://lib.dr.iastate.edu/rtd/16002
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w2&pct.$'.i n t#hat ootb tl&.ttdac <mtd.e bii UtHi-4.
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fint;tOJ.l'& to k4QP ~ho Bt~w Bt1:'At~ti. ·'fna tl•e er tbia S.Uro• ·
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n,eYer twloo tnt:ro~•6•
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the bea.44 ~cknrO.. •o tba't theJ ~· hroktJtt off' an4 tatb.Gr-4!ld
tn'to th• b=·
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s1gn ct tt· t"RvinlJ tiaotd.nti~ but no.M tmt"1 auce a1tul,.
b . 1006 • G la.dut"On~ lrlvcn:t . .e. a. ~au-l:dne. In hi• a~hlno
ttho bol'S-~ nlkd flt t'?10 uf.:de or t;)le nrola Md• ~e, tbe
tn~t:lon et tM rt1de cut Mmilt-1., rt bad. a :revolvi11g
cutt@• 11. -u~ fom. ot auara.,, an lmld.a ed. outa1de d.1v1de~.
a ;;latt&m, $11d a hand rs~. 14• a ·Whole thta macb1ne uul not
auc~•~st'lll1.
e . 1808 .,.. Saltl~n of · ~ohoru lnV~t)d the ll'4o1proctrti:n5
1cuttes-. 'lhtcb :a~ta4 ever u ~-~ of' atat,ton~,- blad8S.. !'!"-..le
~achtn• ~bl11$d. 'l":tm1pl"Ccat1~ and c.u1vane1ns =ctton tot' th•
f'J.r.1t tba&w !'he ~liVe'l'Y ot· tii'W ~10 9!'t lU'll(f"18 {Ci th•\
tact t!~at ff. vts>t1cal -,ak& ~ot;uate4 b;r ci ennk awcp. th• ~ln
~ the pl•t.t~ tt!Xh"l wh:lch titm e~t"a:!n toU •ft.or be1nc ,out. a. llls .- J'OJ:.m c~n of Aln-mott -.mnttd a ~•l ~
- 11P
$ ~pct" te¥ t ho Jlot-'&.l !>oe·ie"t)' Qf Al"'t$• 'lfhta QttCbinG had 80
angular .Jr®tprecatiing mite u a tt~•·ba ~nd 'ftti ·d71ven
E~ a J.tve Qle it~ngh bevel t•~L~,, A t:t ff ceat.r-1..c and e
CGnnee'.\tne; l'Od., I t JO~tlt'J;J!l f<.od tho e~U.J:Q;.,"4.tltt.h of t b •4~
l?tttlWttr_. but il·e'WBP b tlC:fUl!O Q ·001"J'..m~vo1al $(H')Of)~H .•
• • l'i22 • u~ O~le SJ~OOOod mttehlM 1¢.h bed ,1£
reel ('M tlP~t rr~tt'l \Ut1-l end .a ~pe~.
t'.., 1826 • fat_~tek Bell. ot ta~l11-& produced t 'bo flr-st
mctU."f8$t'ul. ~so.plug :;®ht.n~J the ol"lglnal •aoh:lno my be ••
1.n tt>tG ~c0lenoo ml14<~ s.n tcmdQ• ·~ ~$tne ~a ol!e1llat-
ln£. lttlc1V•~ ~Ch or 1i'li.1~b Wt-~ a~ut ltt '1Mh¢~ lon& M<l .abou;t.
i lIU#bee bi'cad at tbe baok. :ti. i~i-6$•t~ .a nor; 14® in baY•
:log a cmliVi.$ sovtns on l."·oll~n ,Ju~\. beh1mi tM cntt1.ng
m . bard.am. 'fth1cn catT1.S the gl;'dA to one ~:ld,o and dapo-al~
it. in a con~tnuous ••uth. PA ob<> prov14e.:i hl.$ :m.acb11ie w1·\h
.a reel ~ wtue and outat~e 41~1de»$. .fils •aeb1na eon-'tlno.cd to b e u~ed 1n 11omo ~li to~ tiH'i11sra1 7ea1fe unt 11 f'O-
~laced wt th machttu~s lnl:ll:t d't•:r the 1:nVGt10M of tho
a•rlcana., llU&Jifl¥ end ~Col'mlck.
~~to&n nowel~t-
a .. n~rc:ro 16U thttJ.tc wore none o.t '4n7 tmportanc•.-
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pta.tl)nt '1thlnh ~'*l"'i&tl tllo botlru\lllfj o.t a p~!od or &'kio.&t.
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power tt.ke-of:t ot' the _..e~.
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a a~r ll o
~.to~• anr k1n.4 of Haptt,,- la dc~d,gMd tM deidan• ~t to "*' o"'le o~ take int.o h11 ~~1)1d&o:tt:•t.1t>n ~e liO'Vott ua•tt-t1al. ~lnctplu <J~ ti• o~ ?l's.U Ko<iorldok r•~ <*cwmtolt., p. 1'1• 18• 111.11). aa • p'.lde. ~•••l ••t
l.. The •f;pdsbt reo~eat!ng knit•~, •~bf th•·
11t4t'lM.ng SJ*•a:ln la a~lttl4 bf latn•l. ~'!on
ea we:U a~ b:7 ttUJ t~4 m•-.' ot the _.. «h!Jie •. {t1\la t'h6 lnvoatc~ h~aele ~eg-4-1 u 'tb.9 ~t vltal ot tbu •le•nt-s,. )
a. fb• tingGt• or g~• COP the klltte• 'Whleh . •~I
~•gain u the ~nt 01' cu•t.1.n&. :;. '!ho ~l.# wtJ.ttth a;1ttht.W• t;,he r~c!A 1n r~t or 'thO'
'l'•P~ ~ ht)l&l tttG b&atl• In. place ..- the
,f'tng••• hoW ~ at•lka-. .4. TbG ~tfo~ en •hten t.ho pain, falls to. 'l'l4f
~~ •~-1 1n a awatb.,
i . ~ •lA wm~l. 41l"'•tl.J' behilid tbe ~·•· whlob ~~ tho, ~hlne ail4 opeatea goes to
act:uat.~ ~· ••lne ,,.te. s-. Thtl outttlng _ _,on• ~14o of tt~ lilltt ot e.r-t,
lfhleh pRl'Jlh t!w i~D'$ tu walk an~ #titbblo
u'b:tl• i;he out-'ti.erJt b• -~ tc '1le- •t@Mng eratli. -,., It'~ 41v1de •' lllb&> ou&e~ -4 ct the •u"t.l' '.batr. -
Wb.loh d.1 vtt\aa ·$-b.8 -atM&n1 gra.l .. ~ ~ that
which 1• to be ~~e.;p~4.
!hes· pt"~lploa ee r~e~t 1n ·~n- •~:Pint; l!acb!M*
1'b.1• ·~~ll~l•l l~&.Q,per WM dcal~d GCCOJ'idl:ng to all t.htt-
to'rflgt'l!.ng ttpocU1eat~«1At. 't~i d!.ff~< · _ 1ft ~rt• ~• ~
sortbed • toll_.J .nu trhft t"M:ftl~ -~~11' 1• $~ sn rtpro .1.
The ~Vld ~Gt11f>7• g:e;~n tl"t.tc:~ -· U$Gd the
~1- m.etlM ~- s.b• apeo1f'toatt~~ of' the t.l"ac'tor '*"' ,. -1 tic ,. ~00-~126 ~~·:• ~bmk " · co •• . u.a.f.·' · ,;;,1 el..«iil ~f'). 450400,,. e.,,p. 1•4'1
~ ~tne ~~ed. on t}Jlts tl"d~ ·wa&: ande ~J' ·tb.e
~lggs at"A tit<'Jfa"t• C~;pora:ttm ~ iii 1e ~ Kotl•l := r-o;pe
tttta"t• 't1P• e; .. Une ~tM 4-•ignt.ld as a~~ 1•3/S
H,.f ., \ltllt equ.lpPld •1'b ,e. thl"'ottlo G'Qn~l aufl Y•tgba tor'1 ~de.
ncro • ., •• ~-. ._ ................ lJ •• ;a 1.nohtui a~•··· .•• ., .................... s J.ACn'll:• r-urtotl di:&,pla~-ematlt .... .... &. 26 cu.. tn. ~ ..... ., ... ••••-• ••W•••••••••w-•i e10l•• ~ingle c llnue
L-l»ml. dt- coo Ie;rd.tiion. . ............ j,1•·,.,.•••••'-.tente4 h!.Sh te.elon
bu1l't•ln f~oe1 agn-e,to
Lt~U.1ea;\t•ih ."" ., •• ,. •• ., ••••• .S:ploh a71tta.
tt 4tivn1o~ft "ft ~.,. :ct i • .ao to 1.w a.1. wt-.l.le tl'le '1PS:d
~ng• ts ~ ~ t<Q $600 n.1 . • ,
POJ! d.•leHh\l.nii ,. a.d~uttt• ~ww r~:t or o
en&tne.,, t.'Hl~Cl!"latl'n ·WW •ti.a ·~ ,a _.h!ne pe.7.t"ta'aing a ·ll11-
f'tinG'tten an4. tad.a arJ tbe blJ\4e,. In ti'lfJ oal.•ulatl.cm ~ t.)le
-c:ap.o.1 ,,. ot 'tho ~ ~l~, tM l'J.P, draf'1t luil• to tl4!;!1. c.-
s1detted,. Yahl• I 1n.dl•~~a that t.b& .hlsh dr&rt ot t.ha bln.O.w
~•bla 5
~ fill.l tteq,u~ in .Jotm~ perr ~o~ . ot JU.4th w- a.ft 11·• :aroot. et P1a'W ~idau
-~ lllntl•
100
150
I .. H .· 11
,,. •• l ~ - 3- '
eo 100
per fe;ot. Qf .tct.h u im po1m.a.. aa.n. on tbt• ~c. 1..4 n. •. 1• ~u!re:d ,.or a srtt1n ~1Dtkm or t~M ta:e- "14'11 at
a epee4 or t1r0 ml.lo• PS' bom',, bu1i tbe nepel' 4u1~d 1•
•omp~ttvei,, llgbti tn c ·cutrueUo:n •d ha• ao he&•l' f'1•14
whoela,., ~ o~fltOl* •lk:t •1'11 t..~tt ..,h1!'le 1u'Ua4 at
altttq eei t:u1vas t:ea ,pt;>'undtt or ~4f't;. Thia l a •b.nin. 1n
':fal11.e 6 (SMD~tle• 3891}. Al$o• 'lb• kn-ott1~ :~bcl.ta ·1•
not ~e~um:t. llue to 'b$ above n~t~., an ~tne· ·ot 1.& notd.nal B ,. wa$' pJ.1'Qp&eed to be :wt:ed as tJle ~ aov_..
'l"bel*'G 1~ a 4.loH ,~·~~ct · th1• ~ult .tth calonlstlo.u
-4• bf C~t~v (ta~,, liU) ln kble 'f.. It •111 'Pe •••11
'leb
l
··rart
~O
J'IH
') D
()V
OJ'
0.
lrf.I
at
.pa~d o
t 11
•• D
titt' llo
Q
:cco:
ra1c
lt 4•
l/4
• r?
lttg
&'
10
160
1611
1(
) l•
OO
o.aa
o.se
o.
eo
o.i:s
~
• so
4 .
.. 11.
eo
s lg
()
10
1.00
0.
04
0.;5
8 o.,
. 0.
11
Cll~1on
nao
4•1/
S? 2G
V 16
2 10
1.
42·
o.el.
o .•
"Ii
o.&1
o .
. 1ct
Jl't*-·A ..... -~~~·
t:•lfJ., ~W'P ltt'tq!J1l'~k 0£ V-le14 ~ltln#$
60
1»
.o.&t o.va
o.e.e>.r;'"~""' n nst ~·v
that ~bu table !tu.ttHtcA• o . ,s .B.a"j<:s:.t. PR~~ ot "1.dth d ·
"' .bl ~ln b~a at. ~ •PceA fit '• all6'• IJC ~~.
t~ o~pcn.~ to l.& 11~1. L• a ll!i'~c toot •!'dth of cnt .•
T~•• ealsdat1mUJ ·1fi6J'.& ~a~ In P~"1-" •~ t.hi& aehma -~k.eii ~ to ~··'!QBth
~t"k . ·- " . __ , . . -~ .! -
~ &~ ••t be -~~ ~4 lt'lg\d ~qb. to C:eJ!!f' the
total •tp:t of "th\lt. l'"\'fNJ~~ ltaolf a:ld ~~;ut 30 t(! .O . ~411
of: e-tt"t ~ll\11 and ~ n-a11tt- 'Sb& •1~h•1- ._ ~ktng: lti
the 1"1•14. I$: ~'l nftettem4111 b• •~le r~'it' h4~ et t•t• '1&$1M.
Fie .. 8 41hr.tn the g~-1 ~QJO~$ or t.Jle· ~r:k.,
J'~qr~ 3 .Md; 4. •~•the ate . .. , .. aad h'on.-tc •1ew ot the
r•per• reas.-,.ettv•l.~. tt. wa:a l:Mtlt, up t4· plpu -4· o.!thfw
1!.gb.t rlas :S'he.1 baP• er •.i•· 'td'tn a v1•• ~£ •ldng ~
-"'
l of
-
t Vt the Re
Q l;
1 1
tn. 6 • o.r
cu tor ... a~ a . . • - . :i.z
on or bar• • • ' . t ot t • •
pla ckle be pl ste • t tC 1 • f: •
c on t •• bo~ 0 t ho or lf
ct t.oc
b lt• to • • ut • • '1 lt
• ( rreoti • 1 ckl el,c! own
n t. t U;: tl • • t' 1 c-o
lt to c t. 1ng t v 1 ot b t
At Qflt) :Otl4:1 'the -al*lo b• -$ COMect.S t~..r~h a
a~t link ~e tt~ bol.l ~k le~. ThG ot:b.~ ad ct -the
b-&11 o~ l.,,e •• •t~bAd tio t t• - pl-. matt., the epeeil
ot the tJiokl• ~ Ol" ·it~ .nimbeP ~ :~~•s of "b• •lekle Ml-
pe:r' ml?ttttti or ptJJ:." f'tH>t of' tt ... v•l -of ti1ff 1~ 1ff~l• wt11 he
dl•ctt••e4 'le.ti• m -· aeot-lm ~\l-- the t.J,'1Ul .. tea:hlU ~
~- to tb.e #lllkl-.
:rtgure, 1 i)~•• ~· ps.«t.r~• c.1:11 tu t~•• pldfOD:
11011-a •4 "• plutto• uon••1~~- bl plllfle. 'Ibo cut.ta bm:--
~ •'tacnen 't.o tm . ~t ·c4 th•, pltatt~ ~ im:to oon•
Y•!f<J~ (a~ tM .ahot"t, ~) p~'t -~ 1*011-~if. A bd D la 11:~
s. Tbe '°'~ ·COfi"f·•~ P"-" ~'~ th• ,ole•;atGfl rollf.tr G -ad
•tb' whole J.m~ ca~. ~"6 ~u.tc:t~ ~till•~ _,. ~i:v;• hJ
~· b~•l a~w and. ~'11a l'Oll.er 4n'>vo th• Uu'kttwi c~n••JOl"'J· ~
~- In~~ HA\'~~ d.'rov• t;h• oU:t• -OOl:l'VtlJ'Ol'"• 'fhe lMer ~
•l•ated Ml~- ••• t wo c.11ri~1~ .- •·tdl•r• •011-. onl r t tnat ta, tnuy did nttt ~1v• l:J,ttt o:n.1,,- ~-~t.M ttillr oanvi•• co•
"•~•· lfba b~e~,. or bolb the t.M•I' ~oll•i-· ·an4 tbe
el•v•t*4 ~llGJr •~• ad$U~·ab1e, f~ t14bt•tng t;he ean•a•
~O.U'\f~--
,.~ botto.• ar the p1.a'lto~a ~- ·•de ot ua~t •ta1 1th1•'h
••~led~ .tom'*' $1JSl• ·uicn 0~1111 •llla._
!'~ ~(fvt»nt 'he patn t~ btd.na bl~ ov•rr tho "• oz
•
• c ..
- .
0 li •
onv 10r con • ol.'
p
.la to
• oo . 25 60
e-,,/1 . . .. oo
h
at
in
a l fro) . In t
i il Bt i
hin
· ·t.on
t en
120 l 160 J._(\
l
1n Cb
r t
· O
• d •
a nor-.an
• • 1'1. 1 ) .
,.
G 1n all 11 1n n d ut~s tn t.b ,
ractl •
t t. .·~ r
1 1 •
nee
• ,. Ua
b7 <tlll h co·ntt l e ~ •• b •
t• 0 t c t.
b . b1 C:QllV qu c l
ll.
•
-n to
ron . t
·t 1 · • b7 a v t:t l
. f:
of c t
d1 -
Ol'
ttc o 1 •
on e d r the la~
.• ~ ..... ,._.A ttc lly ttlt *- •~
.er. m • . tf &e.1. V • M'M't
• - one ule ( '"''1g •: 6).,,. _ •
. o le.
htn ta.'$ .. oututt of th
th th " n bun a
1
la o
t
..
l t
•
'\rA• tunet1on or tbfJ ~ol l .& t Cl· be.cl ~ t;-t.atl.dthg gf'AJ.a
~· tho alekl'O and hold tt ap!.Mt t'.h4 $!Ck1• au:.,tl d~
the ~a.a tw.• b~ out.. 'th$ i-.a:el ~ula 'b• ·r-alll.U• lOllG>."ed
ad tUt.d tel"~ ($'~ baa~ ~o .a liv uet the .A:r 4tt;t~ d'S ecmlt't1~.. !ftle ai.u mut ·~•t.-1ko ·~be at~tns ~ Sast 'below tile bead •n4 -~no\ le••• th.f.f anla UAt1l ate» lti ts o:u"9' F~ )i't't:Gl •lat:s ••• u1tt.i. ln ~ oon1:t~"°i'ft•• or· tne l!D&l ta cthl• ~ld.tte ·tn~ •• no 4~v1atlofl. .~ other
a~d ~htnea., P1gu,H -7 •••• th• t"•ul.• the ~l au,p-
JO;P'l• md 'tho be:Ola~ t~ tba Jt$tltl . .Wtr. ~ ~ ~tap t ·w the ~l ahdii wee • llttle Mtte~
enl :r~om &"hV'D u~ tn tbla maen.tn•• It .. reel auppor:u ~- 120'\ ~lg!.4 eaousb~ the ~li'l!iS 1f0da h• thr~ ~ ot· G11~t ~fl tlte ~htO(I •s un~Jt the OfUfti-atlns eom'i1t-1on$.
2ha s tmplf) eta.n&t.i-~t:lon ot aelt-al14rd.A4 b••tns und tn tht•
~nD\e l$ ~- In .trl~ a. St•l pl.PS •• ua84 P the l"•.,1 ~'t. fft .eme· ot ttbQ
a~ ""D:l'o uppoJ?t"4 ~ '"° :Htlt•a11Slifts tlearitnp. 44Jmt-ment- t-o-1' llatqlua t~ ht'd.£91t ot t.M r-••l Wll$ ~OT1dd bl' eblf't•
iilil tbfl Shatt. ba•1~#•
row•, tfJ'lt tt't1vtng libe ~l. -. '*•• f~ the lef~ 4»'1Ye• wh•el. tfhaft of' the ·~ae~ ,liftd mt# ~-~t-etJ ~O\lgh 8
~•tlOli Jt, V~l~. !ho~ *" ttn ldl.QP-pulley to tue oaa· or
the tl~tll•~ or tth• b•lt,. J1 •~b1•"1an or 1-1\,. eh~•
tg. 7. l .. uppor-t , •
•
id
it to
t
wll V · O
t, r l,
ot .. l .t 11 n • .. lc.:l e
nt
7 .0 f' t ·h
~"'-- %" 1 J it
(1 . )
a tollo :
1~ ..
- el
po o th le
ot ~
( 1g. lO•A) c fl"O tl
· b ·lt
• 1
.....
1
).
•
(V ·-· - ·c) 1.a tach rune • l,
.. h
h
t: • l .
·· o.- 42
(b) (fl
ot t .h. c er b r !l.ar to t o£ ~
• {l 1g . l }.- •• lutch u
fol' o.r ruor 1·rv-
J cltitch 1 ror
l.l 1 tr
0) Pl • (1!1 • - 1 .... Meet.a .. Cl"
f ·""'• 11• ). t.bo b 11
c tat . knit • p . :v l: 1n er CP
tt1to on,, 1
h of
00 11 ht 't. 1
1tt p la ptn 1 lac • slli when it. 1 fl ••s .7:"1 0 an •
•
•
fiatio
n1
l CO
• ba
nd Q
OWOI
' (•
ngin
• op
ent.
H)
Two
tl'ao
tet.
......
Cata
aiv
ell
i..
F. L
arao
n
•!'&U
. ye
Sta·
fwo-
hOl"
f'•
tb••w
n --
•ri oa
Po
w4l
r t.
ue-
• 42
ot
t d,.1
..
"''tit
,C) .o -- -
lbl•
9
ede
of S
ickl
• B
an i
(•
2 ~"5
·0
l~
il)
'6
--3
---
- ,,
24.,
l.'.J. - - -
cbln
t•
12 ' ,, ''° to 40
0
s.os .a
4. - .)
4
• .e •. J ..
6. - .o
' \,.t
• 10 • • ;.
c.
1asi . or P1t n n ll o ..... ~ • .Hc·-
"h · epl•'t .
o tai ·.
(
"!.1
r :t a ot
h
bo l
•
of tl pt
d th 11
11& an
(!-• • 12 } .
to
l pln
'lAtt or
t t
t.
0
or
ll
_ r-0ll
•
to "'.oll r
•
to t c ll Con~ ol d
t.
leh ov
1 u
( } In n f t ~
c t
II
(b) In the lc~·Otld ••pwt--t 'the tl&llfJVa dl6'G1
(J'l'hSmMW.• P• 241* .1947) iwu Ut1od. T.. ilerrlvatlYe
t1'.PC: or tlen&vn Wheel. 1~· shown !n Flgutte 14. Th•
61,ae A wtth. pln la the <triver. 'the pln movea tn the •lo·fiD mi n, oauat·ng B ·ti& t~. B 18 tastftned
to t:b• #}1c..aft. of t.ho baakcit._ !rt the ftgul'"e, B
ul ll tun-.n on.-th'lrd revolntton, {W 120 dGSffe•)
und v .. t .tit.le A ak® one. etontt.btto\1& t-"&volu~1on.
DUrlnt~ tbo poi•tou et· rest. l! ts. fr1!«t'en,od. trOJrl
tur111ng. atnea 1 t• e~avc eui:tfaoe 1• 1A oantaet
1t11 the oonvaJt svf'mu~ on A· ~t.1 lllethod ••
dis:ca~ -too,. bec•us.e at't-•l' tmrntas one.-t.htl"'O.
.of' a re~olutJ:on e4 ce t.be baak•" sbOnld at-op
and m:tler.a4, n l"tte6lv:ed M i&eJ>tla tr-em tt •nd mad•
it cont.mus to 'ur-n• aumntl•• a .large Pl"••~ tonk plile• on e. pot.nt, or a am.ell oontaei area,
b•tw'tID the o.<>tteaY& $nd.. conves s-ttr.tec,ea an.\ bad a
tendeM1' ta tJto-p A ft-Oli .conttnulng to ~tll'tl.. In
,, th1a •Y tiht> machine parts ct th1a ae!'~antam wet"&
,eabtlr out- of' ordt»t.
{e) The ·thb-4 &.X,ft~:t~t t-e1n1ltd ln the etlopt$l
dfJ3!.p.. 7be d(;:stgn wh1eb .a f'b.ulll1 aeoept-1 a•
~ best ~~~' to ~ae 1 the ntohet tumtett (l~g·~- P• 24.S~ 1'94V}. ~ al"l"fltig.-
mont i alwtm Sn 1!.su:Pa »+ A ~d At ~ 1"'tnrtane4
P1g. 14.. ~~1sslon Gf Po•e to '~ nantt-ii by V&a of· Gen~va Jlb(t(tl
-() s t. • ont 'te
l nd A' • ~- .. Ireet! ana .. t1i er
c tll 1
t~i ·•ol b • ppl ,n en o tho
B ~
tlo l
t he J.:O ·1
a, 1t
ve. .. I
ta 1o () to _
I .. iJ. ., • . to p wl c 0 th
o OB will puat t l' t .
1v f! 10 tro- a ulle
roll .. bf 30 .. • •
• 1:5
An. 1addo t.U.vi.~ •114 an ontalde 41.vld• (F1g. l ,
Ifo. $} lfel'O UllG4. !"A.>th ~att• ~· Of Sh (l:Ot iron &.ll4 -~
-aoti4 £~om the •1n £~••• ~h cmo ,proJceted tw•lve tl:toh&•
!ntc t1m atnn<U.ng orcp sep~ratf.:ns lt 1n d'fa.~• or the cu.tto~.
The d1tt1d1ns; tune,2.cua we •1•¥8 to p~~ and direct th•
gra:bl at the 1~ mtd o».f1W qe ,o:t ti~e ••th to__.d t..~a
eiekl••
'the hcl~ et cu,t was. r-suiat,fJ4 ~ thtui-. 'two hoe.
Sho•• w.ee !'1u,~od '\LP!~ tru) cutt•?t b~ bf two 4t.ffewat
bolta., . l~ ttc 11&a tb• pvpoa• 1tl thl• uchlare •o ot'feot • cus
as clo:ae to th• grotmd o.~ potudble_, t~· ·t.ba «t.J.'>e.w watJ to bo
-.i&ed lt1t•l'• ~ ~ustment et t~ .h•tdlt 0£ tbe cutt.er b~ ab-we c,rowm l~vel 1'U .found ~uee:a.wy. ft1e ld\Ce• -.de b7
low caboa ttt•el ti5 r.W.ovn m Plgtn'.!G 16.,
A p .1'ec. , Qf eut U:on oa•'ln& etgh:tng aOOQt 50 lflOW1U
(i" , · 1-1 t10. 20) was t'&~'U@ad to the '.battdlea o.t tihe tNl1.\tott
t~ ba1Mo1n:s. ~ ~1ng nlsht J:at!l1t te4 ~dllng.
-..
6 . to. l.
....
•51-
uae tb .. ?'ell r. t' 91 . • OS ct g t n un 0
a cc. 0 on .. Oun t
trc ot: t rol ' . 11;' ine h 1r • roll<ir c.ould c o :-nn un
tnc 0th ul eo c n 11 eonv yor out t
ot th ) he e
it'O
t t
y, •
h t 11 r 0
prev • nt • h r
e1iz 01 1n • t 0 • r •• tl·a 0 t!r' t to t.ouc ·
.. 1 . n: · ahtnand nt h a · t !Jhoul t-e rue at
c r. rt w111
:e ut r b
utt· b h
ld tt-1 l
l. .a. o en d u.n.
et nc . a v
Ju t
1 • '2, 194 · e:t
,.
• 17.
• 1 .. 5.al
-~
conve:;or. Att~ r&a,~1nB a c•~tain <U.atattc.e-. the cutter bac.,
cu.lin1'tUJ con.v•7ot-tJ and baaket (fflQillttO to \'iO~.k, but the eAg!ne
e\111 t-an. The bel.' s11ppngu u!ated on t.be sa•e pulle7
tth1ch 1Pl• putt on ~~~ otmt~ par-t t)f tho len& ·c~kshu!t.
The cr .. nkS-haft W:11ch was ruu1e o.r nt-oel tubing •s ~upp~tetl.
by two b~tnsa at 'botth ends. Althf'Jugh !t. bad a~u~te
~tr.er~th to trmlsm1t the 1~s~ to:l1'qu-.. tt wa• not at1tt
cnou3b to restfit bending. Adding • benr:tzlg at the c.o.r.t~
~t or the aH~~hnft t;ca lde the pulley ·to J>e» 1st bending
es. :n~-ftary.
"Ebe tbt.r4 t1.el4 tJ>ia.1 'JS'ftll coti.tinued on Octob•r 16, l94B.
~"hls t1~1ai ~veA1-od that the :wcrld.ns oon<Uttcns tJOulG ful•
f!.11 th• expec,atlons or the d~1&n• · Qfil7 · tb& cut 9'•1n
nonveyed bf tbu· conv070:- ecn1lA· not cl.rep 1nto the baaket
Tith even bu.t.ts and eo tt wan not. ca:a;; to g,et. bundlAHi drop.
ping' at equal d1st$J"..cas on the gt:'1Un4 (Fig.. lS}, but tli.U
m1.g;ht bo oana~d b)" the toll0fl1ng r•a«.inru
'fhit oota # tan~tru.; 1n \the t'te1d n.-e ov-et"•cripen•d•
•helled out,. o:r 11glit •"lf,,ht a.~d of eoon l$ns;th ( abotlt l &
lntfha!l' htgb) . ~tng :reaplng the ettS: ~in nved beesu.se
or tho ~at.., nm! «!ld men. out and os.>::vled on the; con• ve:c.n~ ~o the elevat&d peat. t.lon 01" the 1nc-J.1nca plm1e or the
_outer canvas tH>nveyw,, 1t h•d a sreat t#Jn<i~ney to be bl o.wn
ott' b,- .the w1nd. It m1tr;iht be ~tter to ·u5e upper e.nd lower
conveyora (u;trunlb' tu.i~d 1n bhldo .. } IJ1$~0ed of th• outer
'
conve70J:E at th!:& an1Uth1Dre to tranaport t"h'8 eD:t gfttn l<.1 a
h1d\~ p~ . ., ·~ ti"l'"l~ rc~l thu ~rect or tbe wlrm.
l• fiWe Gl('"to'ti lllttlaftte't,ott-r feaiiW'!ee et tme •"P•!• :atal t"IUipftr_.,
nt the O~(h1 of' dealgn ct' tbl:t up-~me:nt-al sehin••
tbtt tollo111~ a.tl\rantage-s ... ~ ~ctedf tillJl$
a . -th.a t.5 n,.P. l'.lav1d ~dlq t~tor wu_lti 1u.1pplf
ontrugh pour tort ta.metlOD and nap1ng~
b. tb:J 'Cttt\o!' b.- arA 1t.• ~lvtng aJ"1ran5e~ tr~
do " n1ce· ia job us t,b&t ot a #:Ol'f~, b1ndo:t11 Ol"
combln•J
c., tho cmtit:r q-."lvu. tHiltD:fOr, as ••l.l at& the elttft&t~
o't gA:tn h~,, woull1 -ele? ~ th& cut gntn t-o a
pred1ee$! he!~tr
L the btuzbt_ c1'1,ld aeftn1te}7 tu:m """ the· laG degfl'ett
angle d~ a eetu!n thte tnttmY-•l i
•• th.G fO-ut'""'·lMh htttght ~f tbll rrhc~.fj •\lf0Ul4 help 'the
s1~klu cu-t -t-bQ. a.rep al} '-be ~tpt pla•·• J
t . cnly o. Jti.w c:luteh ·would eell~J:'\01 the ~le ~()Gp$~
and &dd ll~11~1t1' to tbs opr•ttcn ot th& ~h1ne.
2. ~ '®e-crta!D f•t:~- -or the &x~~ir-..-nt l ~pwi 1
• . ·the; tl(ltrf.ca ~t ge>tb~tttr~ the ettt sr-ain -1nto bmidlf11J
1,>t' U'fl)!). butt:# M4 bU-lt,:la
b., ~ilo 4ff'11ee ct" fie.pCt!tt!~ ~be 7bundld fi>t -t~
su1:i-1,-0:1,e ttult tl1u Qt"ei}• c.atlia reat~d t-1 tbta mtr.chbltf~
griiilll during .n nonu.l lutt-•l'etan_s season. thot.. 1 t he4 the right
h lght titid w•tg'tlt., thQn tlle etit ~aL11 ~ght btt ga.thei,.9'\ t.Bto
bundles- C'Ji~ evun h·ut;:ta ti.nd: l•~• sn4. depcatted ·bs thfJ baabt
en the g1'or..;nd at $Q:tml apr.mtn,s.. hopur wt!llt and he-1.pt
fltt~cl tt'dl de•1p.m f&1nettnna: ot the :nob.tao anti mtght ove•-coN th~ f!<ta'th~ eondl ttonc; MJ!'avttit"ablo t~ harve~t; •
a. !h~ cuap• 1 t:J of ·t'he ~per Ao~crdtng to tbil follo~ ;equatt:on gtvea bi' Fl-. o.
~! K!.bben (1930) tba capaclt"J ot th1.e ~· •a 9 Der1.ia ..
A • f'i.-W • !R· & 3 s ~ 12 -A : •'tttal eapae1t7 o£ ~nine p~ \'b>.y tn acr1'1!1
& a re.~e of travel ln .i.11.u~ ~1* ho•
if a: ll1 dlb ot t'~t1 b I'••• Th.ta r•ult. liHW o~il"able to lb& ,p•.f~• or uam 'b1.ru:teH an.4 •• ce~ta1rtl1 ~;v t1~ that or a baM stoki..
l • 'hG jl~J;,lf.i~i) 01: tbi~ %'0QUeh WM tto d~lp ll. ~~
·tc btl tUJed fol.\ b~t~eflt~ ~le• •n<l li'Hitat nn.dor the Chtnea,e
aptoul.t•ll";al c-~t1uns and tba:t ec~ld. h ~&m by a a-11
\J"ac~.
a •. onl7 tJ"~ .. n tvae~~ utl•d •s t.M powe '\:tQ1t ecn.
me·et. th& :A&ed ot ·4•11 :r:s~ tn C:b!.na.
~ 11,bou~ ·48 pot"'e&nt ot tbti food SQppty tn ·C~ ta
pl.ee ~d wh$4t. !h .. ts R sre•t~ sb.ori~a o~ l«b01J) dtllt ...
tns too ~,...v-t!~ 11ceu~.n o.f' t"lce _.•heat tl"'.:an fop an.7 ot th:e ot~· :t~L~ $1pta:~~loM.,
4 ,. 1 nea»r t~ n~~ 'bu't ~ie h.t!a m'tt yet b&M de-
;a;!gQed tl:mt niw. be Gtttaob,et\ ~ •f k1:1d et a, • atal l t~to'P.
1. L :P~~r ~t.:tr ·~~· u~G uitu1er Ch.tnru~e contU.tlon~
.Ml#~ be @lo to> out. ~"le .ttttlks ~ ab~t ·tbr•Q to :.ft;.u~
lnob•s ~'bov• u..~ ~liN>und k'Vtd~,.. to gat-~ the cut stalk$ tn'Ci0c
bmdle" ( n.~t i.tt t1e4 bu;n~} 0£ 4'\Ut•n butt• md l'--1•,. end
to dei»•1t them on ti~ lcttd b:o•td• ~~- ~11!• at r~ala
s.atU¥a1&.
&. Field t.'rlacl~ lffl:n .Ca tc tJhow ~ utitts;t1u)'to:ry
pe?-f~~ e>f th$ dmli. ~~(J;4 't'~e,pe:t-,. ·t~ wwk ot the· M•1
ct the r:n$t1ng ~chm lma# ,utt 01~ tb.11 CQ!lVaa (tonve~t"S f'or
elevtrt,.ns tl~ eu.t it~aln t:u the t~p of t.h& b•sbti.
"
7. 'tho 1.rl.'"i.lb~lm~tt;y o~ the ~p!J'tg 0£ the cut sratn
into tli~ buuket.cs CG.t:Uilrt.& un~veii buru:Ues ot bntt1;; $l'!d heaO.
:l'l.1Sht ha:v~ trem1 eo:ueed bJ;
(ll Ue.k <Tt wl'i.ltgnt tn tb11 ov~~tp~thtl 011t St"•!~
UiJl th~ wtoo blowing tlh$ O?fl'r-<:l~1ed• Utht_, 01.tt
~ln in.to dl~~er.
a. 'fho suestuitlotl !• •d:e bf the author- tha\ t~tb~
&tudtoa in tblleet1~ and depo~t..tb\t the cut grfd.n tnto
bun4lu~ bJ 'tm bruJkD~ oosll be. -4• und6~ *>:Fe :fttvo-nble
1"'-A"eait,tng c~ tt onu.
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l~le7. 1., c. li121. . l:>ell16f! of a ~ojb~an ttwuh1,ng attraeb-~•\ !'or a ~td.~ b1ndet-. r"• ie. U'~ubllsbed it .s • ...rho@.! , • Iowa nt t Golle-g,e . b.,~ • Ai?.UJft• Ion.
tu., Y. ! . lS4'7. Dttnlgn an4 e:~Mt..~tt:ion 0£ • .a.mall t:r~c~ fe!" Ch\AQtlG t.-mtng. P• 8,t; 14-81. tlnpU:lill$bed ft . s . ~1.s,. Iowa ntata Coli.&* It1b;ra3. ~· I)~ I<>••
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