aùd the particular'ufe of the gauge were* neV ; and, frofh'the teftimony of Mr.
Hdniury, wery’ufefulin breaking up heath ground. -
A Defcripûon of MrV'Rin0r'o’se’s T H I S T L E - C ^ T E - R .
ibt’Ft-ëy A A ' ' f l ó è M E t jjÊ
KriX ,° 1 The Whipple, fattened tó the’ t$o? ground-fills.
’ B* - The doublé Chain j dr Rópe,- two feèt eigh’t'lhches lo%; fattened to
the whipple and the fore'ends' of the fills.1 ^ 1 ,
C, C' J Twb Scythes, ' thr'ee S p e ig h t inches Tbtig, " from J^$rit* to point,
and'fouf in^Sffs’ and thrèb quarters btó'a'd; kt tlféiFf6¥Çnds,:;wlfic'h meet g a
point between-thé double’ chain, or¥ó$H/^?d°h& WèhêÖ' ^ tdrtlië « th
four Wbdd-fcrews ; theirîpoints'or’ftàrp én|sf ertghafcg thre^fevdt‘ « c h
from the joint of the fore hirtge.’ ^ ^ ,
a D Dj - Two fbiïnd 'Iron“Stdple#tdrlvbh^ht&l.tlre3f0re' ènd'of“'the fills y to
whi<&TKê dôubîe'ciimn fs^îarfehed'." g 'M WËËÊÊ!ÊÈ8bÊk ^ .
E Ê ' Two iron Hingfes^Taftened with woód^fbteWtotthe üfptffurface
of the fills. 1 ; J „ * '" + ' t ■ " > . s ..
E F “* Two Brace"S7't:wa feet*five inc'hesfiong,1 two’ mc’héë btdaa, <ana'»o
inches thick, at IjB l back Grid's, ~aM ^fe^hdH^Wêir fóMe k ^ s^ wherl^liey
are dovetailed,' and le t in1 even with the upper furfade
thereto with 9 8 into the
fdre énd? óf' the'b'kcés \o reeèive'thé back
fafténedkîie^o^wiiii iróp pins'.>u ’ V ’-'"'f 1 ! \
G G Two ground^ Sills, four feet th r^ -iitch e^ ^ ^ T 0w !^M ^ fead ,
and threë inches 'thick : thefe fills are1 parallêl tb*e.frh Wtfê& M i Jâ\t% c j a p a -
ed with twb .ftVorïg' IW m fb ^ ö d ’ ^'thH f^ up fèi15‘fcMacfe’
ends of thé fills' aïe cut’tïp S e t tle ' flantihgifrèm'3 their ;ud'dé¥Tidés?as^ ^rEfented
in Fig. 2. r . ' , ■ , >
This infiniment*,1 by*rtfeàhs óf the'dbiiblénlïsiand'mnges, rMy beJûfed%ith
both the fcythes horizontal; or y£th one or "both fet to any degree of^elêva-
tion^ b f Which means any unfevëtmefs'o f thé grBünd,^of oM ru a fen ^ ^ ns
furfac?" futh ds ftónes, róots, aht-hilts, Stc/tfïkf; bfe eafrlV^aWded by ihis
bontriVahde aîfo, thé fcytîii's'itiày With' greaiiM W f be H | p 8 | B 9 j9 ;
• tioivtb be whétlféd, Wheli there is ddc'a’fibit.* 1
t i 'H , 1 if¥'Ö Arms,"eight'inches and arf Half long,‘from 'thfe"lhbtflqer of
their tenons to their butetjends", fôur ifidHcs'broad", àn’<î4twô‘ filches and three
^ i^ r s ié h ^ fM ê^ itö d k t Ôié'fidés 'óf file fill's, and'évèri »tb'
.tts’njpér'fliFafce. " ‘;f ' ' ..........& * ' ; ^ ^