125 lines
4.1 KiB
Plaintext
125 lines
4.1 KiB
Plaintext
digging, so lhere are large machines suiled lo speeral
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landseape tasks Any of iheae ran be supplanted by
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human labour where ii is pleniilul The basie
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earflkmmnng aliaehmeuls are lira:
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- BLADE (can be uiouniad on almosl any veluele, or
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lowed), insludes ”v" blades erdelvers
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- BUCKEI‘ llor lining and loading loose maleriali,
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narrow and loolhed lor hard ground, nr bl speeial
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shapes lordrains,
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- BUCKET Cl-ullN llor faundahons, pipelines,
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narrow deep dilehes, underwaler dredging)
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- scoop lean be horse or bul|o:k-duwn, or
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ariieulaled on an hydraulie or leleseopre arrnl
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. KIPI'FJI “or: breaking up eoinpaeied sods), usually
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lowed mmrrmuumed on lraelois
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- DELVER iioronepass drains; olien niounied on a
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grader, or lowed on a (nine belund a bulldozerl
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- SPINNER liear-inounied on a speeial lraelorl, a
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[askrvzvnlvmg dise ol aboul 2-: m diameler wl|h
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peripheral buelrels,
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. BORERS AND DRILLS iholas, lenees, explosives,
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pipes, wells,bo'ns, and rhe lilrel
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- in PUMPS ([0 pump oul sill and sand in wei
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plaeesl
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As well as lhese, lhere are explosives, whirh are ol
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speflal use in marshes and swamps, and some specials
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rsed lools ior rods and swamp work, lur mines, and lor
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massive iunnelhng.
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nlllllir ml
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ms Two—misc» SHWEL
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A 54mph nor-4mm mere-a synern or drain, Barnum. and males
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oilr sonsern here, however, is lor lhe rommon louls
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ol landseaping and waler slorage ar waler ehanneling
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Elch has appropriaie uses, alihough mosl ean do
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somelhing ol whal ihe elhers do To lake lhem one ar a
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lime
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Minna
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The blade Einhmm'ers are ihe maehrnes lor levelling
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and benehiug or lerraelng, and ideally lhey should be
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able io liil land dropi, angle, and lili They ran be
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mounled fumard lbulldoeerl. in ihe eenire igraderl or
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al ihe roar lwheel lraerors, lor levelling) Tilied, ihe
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blade ean malie shallow v dilehes, or pui eiowns on
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roads Angled. ii spills earih \0 one side as sieering
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walls, or makes long shallow drains
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blades are ideal lor levelling house siies, lor ierraees,
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lor benelies on hillside, iar side-euibug roads, and lor
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pushing up earlh walls Even a small iraelor ll7-25
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h p.i, parienlly womad, ean male very large dams and
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leer—aees ar less hiel eon (bul greener lime eooil lhan a
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bulldozer, while large bulldozers are ihe ruosl
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eeonomieal of lime. They ran wm‘k diiliculi, sleep, or
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siony siles and move very large obieels sueh as
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boulders,
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The bulldom is a blade mashine, mainly lor pushing
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and plan ng eareh, ii is 0! greaiesl use in ioading and
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lor dams, l s an eneellenr machine lo poi up, roll solid,
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and spread earlh, lo dig large shallow holes, move
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small hills, and belieh The blade Tins lor road enrwn
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slopes and ANGLES lor easling aside windrows oi
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earlh. ir also Llrls lo spread and release loads, and
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mops ia delve our drains and diiehes
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Angled blades are used in long runs lo rasl earlh our
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ronrmuously lo one side leaned sideeasliugl Tilied
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blades are used lo eui ehannels or lo beuieh slopes, and
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lill is used mainly [or piling up or levelling loads
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blades are normally lorwardrmounled lor signl and
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eonlrol reasons, bui on lhal special road marhrne. ihe
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GRADEK, lhe blade i mrdernounied lo give esen
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spreading and on mull [arm or wheeled rraeiois are
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olien rear—moonled, Some small blades roiaie aboui
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lneiraiiis ”50‘ swrvell The grader can be used lo makz
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long drains,ol shallow angle, ihese are inrsralled spoon
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drains, bul are elleelively more angled ihan spooned in
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session.
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Thus, lor all normal bench work, a bulldaxu is
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uselul, and tin long liar load or levelhng runs a grader
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is belier A scum: is a large, sell—lining buelrel or
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land dredge whieh can boih ml and emply ilsell lo
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plane on or dig our large areas All large maehuies ean
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now be laseregurded io :«utalely level and grade
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helds or a presei slope lasers ran also aulomaiieally
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work his hydraulisa lo liii and drop earlh, bul land
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lorming is oiaurly iesirieled io large llailish irrigalron
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areas or eivrl worlrs, and is normally eoniraeled oul lo
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speeialrsis wirh large noelunes
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The PM my burlre
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Thia machine lsomelimes called a diolil combines all
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lulu molions ol Iill. dig, push, and pull, and is a
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243
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