; t w *
mAlGunved! Sj8MçigçiiaaIr •H â ^ « tB d ’aqBhal6 Ip n g ^ k itf
at>th¥ enû/i which?isjfaiftswedvti^ th e ^ o © ^ a « d l e « a ,thax4 :(f e a n ,kG h 'Ç&a&at
kà pabvty-or hctfeâîtwhiclKilies u n d e r th e A idm g h o f t.m A t£ th i£ a n d à h è
•àpiSiô# b© le ^ fd r.A l»® p e ^ aA 4 iQuldw.^rf,->iQf th e latch, to
jfefe and! r^ p a ^W xA h fQ U g lv 'iw l^ ix ïh fiv çÆ e i^ fii tb&(Springffi%rcffleé;d©wn
I d n ^ h p u n d e r - f id e iôfvrth® >& $ $§ f e h ^ S ê e
,.£ ’J. ' J? > iv> Æ %ÂV Vf1 yiÿ* ■ t» ‘**î **
Uk S® SWi^4bfe:ieidvetfâi^&esd^g/>-dhfi-thiïdr-'ç4 an inch b|j*d,
E £ 3 E $ 3 p 9 o fjBM s^ ^ ip b^ rv^ te
ft4 fe ^ k in g -w K € e lr- .p jU h .e f s r a g h t.a n é f e a k 'e jW Æ $ t l | d»a4w itîap irîftjp h e
ftaplW ydiY-xrrf h ^ % n é 6 w p i f ê d ; % u fther«U3 3 ted' •pepenott « W & g B f f g
dawT^Æbêrflpfeffÿi tb f fpringf Sj »by w h ic b ta e |h £ > thfc fthahldertty! o ^ ^ J ^ oe h r
isje ifeherfixedjorjhfengaged i , | | |
T h e l jw g i j ^ ^ j a i ^ t b e brta^e Z,- ^ te x C ^ e â G d ^ o /b l l a - lP p ^ B Q l t^ b ^ l i r ï^
■ ir^àq.^#îl'Miîi’f e î 3-ï.1.à 0 $ .$Ègg# £
T wo Pullies, threejfoürfeis -of an 'The p u l h ^ r u n
inf a b r r f s - f e c ^ e ^ a ^ ê d £ t>th&ÿpo? p jtheprui&fcil» o®dwÿ ^ g h t
angk% from- the; Aiding b o lt Ty; t e the.,upper iEu.ltep Y$ andvthe A m e ^ tO
the[bj-alcte, p r h u g iZ sc Seejf^diVkya?lAg.h®? a.T.l
M Two, Staples, ofaftenedi-withi'woridsftrewsbte.-t^ex flbQT.aîblAiéft'
Sftaple&derye to- dîre<ft n n f t f tb p ü h e ^ A idm g h b l^ h e f f i thfe
th e weights h a # drawn it,tp th e diftance ,re.g,tLi,te,d.^ tT h e
fixed near to th e (sgntêrfôfj die-walking-wheel,'.ds ^hjade i3 f |§ hâgh^fuffiçi.ènt
f o r tb d b k t i t o riCefand .catch fthehtuds aJbyf&É' a â ffth è .-W S lM ^w h e d ^ bO t
th e o th e r Staple has> only an àperture: £.t. | â | th e b o lt to pafs th ro u g h freely.:
. w , . T h re e Lead o f Iro n W e ig h ts, (which, fo r a' M rge! crane, arelabéfit
hâlf an h u n d re d each;with holes in th e ir centers fo r th e line i to pafs th ro u g h ,
and cavities in th e ir under: furfaccs to. receive th e fieparifte h n o ts d f e tie ^ faid
Une, which areijaboub th re e inches djAanft from-each otliery :andfffi wM cM h e
th re e ,W e ig h ts are fnfpendcd, and gradually lifted tip, one after th e o th e r, b y
th e pfo.greftiye motion o f th e Aiding Bolt T ; b y which ingenious . contrivance,
th e walking wheel is hopped, in its gfëatcfl: velocity,- b y fuch gentle degrees
as n o t to be fhocked, as fcarcely fe lt b y th e then in th e wheel. ;
X , A Spiral Spring, which is o f fuch ftren g th as to h e extended a bout
fo u r inches before the firft. weight begins to be lifted up. T h e two. other
weights are lifted up,- pné after the other, ’b y the ir refpedhve k n o ts, i n the fame
manner ;as the firft. T h e in g en io u s in v e n to r judiciouAy applied this Spring,
and the -knots i n the line i, to p rev en t it from breaking b y the fudden ten -
Aon, o r je rk , Avhich.it otherwife would receive, from th ém o tio n o f th e Aiding
bolt. T h e line i paAes through the circumvolutions o f the fpring, and is1
fattened
fattened tfpadh end of i t ; but it i's (fo ’loofe within its circumvolutions, as
to ffifertthe Jjprihg t'o, be-extended, as^hs^^e^mentioned,, four inches before
the Aril yjeight
- Y,' " "A pulley, onejmeh and-,an half. ip. diameter, faftened to the under
fide" of- the four tianfom^P»’
AB'rg.ke, or Hug," ope cnd>of,!\jhi5k^s,,%ftened to the hind tranfom
R ^ b Frame, and the 6j:|fOT|Sne link, of'-tnehllding bolt, wWh occafionally
rdrah's down ,tlietllrake,qri„the periphery-of, the walking wheel; which caufes
ho tmuch fridioh’ thereto* ^2s>'^^dhaily to-hmpedeii|f‘ pnotion, till one of 'the
®u|is a, ince’tVtlm' inner ftaplc'o|; flip ffid’irfg bol't. - !§*©eW, V, Fig. I, a.
^ a , a, &c. ^Twelve Br^^Sluds,' wjltch are %ftened with ferews to the peri-
yphbryStiie>S-E|mg wheel; arid ferye to^oW'Va- total ftop to it, when, by
pfecident, jits rirotion is acceler|ft$p&3Sra
E e/ The Point df thfe L'atchl^ SeesFi;g®i|^id
f, The loliOmdei of^Ehe’L itch.|^^eh,j|^j'i*,fan0l^ i fx
■ Ifgj • ^T'he Apcrtuic, tlnough pv ljicfr’ tiicdv md ddjdifchair^d-ibAt ofnthe
IlfceiVing bellow,^ 'by a piopci1 Conti ic£jb,nh6f?'it7 ‘VMhbthe hyalite’ P. "fSee •
P g> ? m m •51003 ° dT <d ■
K f^ ; 1,1 A Brafs’ eoch/'ft’ftenccl'to the ffoor'to.rec’eive - the pin, or fulcrum b,
ofjjtn% latch" R. ^SeeTig. 4.
Line, fdftened to the flidirr^ boh ^ ^ b ^ h ic h the weights W are
»fufpended.
k, ^A Line, fattened Co thh bfa'Be -Z,!1 iand^ffimn^ hbl't^. -
l, A eurygd Jfie.ce of Byafs, .fattened to.the Aiding bolt T .
!n F (;t C . m>!
0 , ’ The Cap df the!.T‘ri?rid!lei'''/
" r The lrhri^Latch. ■’ -S’eeTig. 1.
js g;} bo ThdjctSrVM Spring:'-' See°Figjrr.
T , The Slidifi^ Bf)ft.“
U, ; b’^PKePullie^ ;
V, V, 'The Staple^.-t^
■ 4 c, d, The Ann of the La^cfi. ,. ,v:
e, The Point of the Latch. $ee Fig. 4.
h, The Brafs .Gobk, or Fulcrum of the Latch.
’ i, ■ , Thp'T.irij? .of .the Weights!
The,’*Line/0^ fehd Brake.
- 1-, The^clfeved Piece of Brafs, which, prefles down the nofe of the jpring S.
Q q F 1 G,