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12 \ -"""'-~'-"'-'---~·.-......-~

I.B.C. "Sin1plex" Direct-Acting Windmills

(GREASE LUBRICATED)

Patented

Fig . . \.l

~ per·ial Features

Direct Actin~. Dou hle Bt-arin~. (>n t rt"' Lift. L L

.\Ianufactured in Sizes: 12, 16, 20, 24 and 28 Feet Diameter Wheels

Pun1ping Stroke

Special Features

Bearing, e ntre Lift,

Manufaetured in Sizes: 12", 16, 20, 24 and 28 · Feet D~eter Wheels

ong Pum ing Stroke

P age

13

I.B. C. '~Sin1plex" Direct-Acting Windn1ills SIMPLE, STRONG and POWERFUL

t"ppt'T Va n e Hinge , with large isrease cup tor efficient • ncJ.tion .

Yan e. - T h e we.ght of the vn.ne is the governin~ element in the I.B.C. "Simplex" Win<lmlll: It !i µ":."riectly a.utomatic in its action .

Tu rn table O rea~ B ox is conveniently :-iituated just above th~ insp~ction ladder. ..Lnli holds sufficient grt!ase tor one year.

to.,pt!<'tion L a <lcle r .- \Vhen you ::>tep o rr t hi s rn:5tiection :at..lder you are perfect ! ~ safe , for a :noves with the mill, and fro1n 1t you can :-;l'!e a.ll parts of the I.B.C. "Simplex." "'\iVi n d­mill in full operation. The at t entla n t can sit )n th~ top or this ladder, grease. or effect tn"· repairs th:\t may be necessar~. a_n tl .vatch the silent working of the w 1ndm1ll.

Laro: e Platfonn, made .1! specially selected '.1ar<lwood decking on stout hardwood joists. :1.~hich, in turn , a.re bolted to substantial

.>teP.l a.ngl~s.

Vane

Pul l Ou t \ \'ire t; u idt.·.- The ~u;l out wtrt! .t .. ...;!..':-. i·om thu ::;Wi\"t;l throuKh •ht-> pull 11 \'dl"t" ;;ulde to the µull out wtnch

--u .. 1ow T'hi~ ~uid1~ pn•venlS any Wt-!ar

r\ ht> µull out wire.

1'tn\ t• r L e.i.::-:-1 of .1n~le steel, bult one on the .11 h~·r ~LnU ;ue s~·\·ure1l with he;lVY lng-:c sulice pit•L"t--~ placeU . insuJ.e the !egos Lnd rr11nL:ly l>t>ltPd. This m.-tho1l pre­\.•·nl:; all shearit1i; titrl-'..i~ on the bolts and nnkt·=-' a !irm lf't.: from Lop to bottom. \ ll hulp~ .1 rt." pundtetl in jigs with Hpecial rn.L1 hln•·t"}, whil·h •nsur"s accuracy in

,., ry 1 .l~t· . tnd tht> 1.·t"rtainty that they .nl: ~o t lbt-"ther t•:1Hily.

--

Connecting Rod B e-M i ng is or n1ass1 ve tl~~ig-n, with large grease cup to ensure etlicient lubrication . Crank Shu rt.-~olid special .steel. o! large diameter, and forgeU by ~pec1al machinery. 'I'he I.B.C. "Slmplex'' ha.s no cast iron discs keyed un. or wrist pin~ with nuts that will work loose anU cause trouble.

Long ) lain .Bearings , or special alloy, are die cast. P•·r fectly accurate in a ll dimensions, and interchangeable. 'l'hey wil l last !or years and can be replaced in a tew tnin u tes with sma!l expense.

Wheel Arm Spiders of high grade cast stee l shrunk on and keyed to the shaft make ft impossible for them to work loose, vr to be ta.k~n olL

Turn table of ::ipecially la.rge diamf"ter -----==---thus giving s;-reat tability. It works

on a large numbe r of hardened steel balls. A ring placed below the main casting and bolt~d to the t u rntable and containfnt: a large number of hardened stee l balls, resists any forcP tending to

Pull Out Rod passes directly through the centre of the universal .swivel.

lift the turntable. ThP~e ball bear­ings enable the windmill to re­spond promptly to the sltghtest change in the direction o! the wind. There is no n1ast pipe to wea r out and give trouble.

Con necting Ro<l.-The length of the Connect­ing Rotl in each size .lfill is greater tha n hal! the diameter ot the wi n d wheel, giving small obliquity-no strain un the rocker '.1.rm­no prPssure on the rocker arm pivots-no fnction-no w~:'l.r ·1nd providing a. .JirP.ct \."P-rtical lift to che pump rods.

L"ni ve rsn. l ~,vi , e l on the tower r-nd of the coo­n~ctin,; ro<l i~ rree to rotate >.1.nd usc1lla.te ~n a.ny Jirection .LS required hy the varying direction of the ·.vin<.l . 'l'he .:;-rease cup with special fitting lhl holds sufficient grease !or

\ rrn-~1t11:tt (l b1•low the i. In.t­!Jrn1. 11...-.. I··n~th h"111~ tt !t·a~t rwtc~ 1::;

... 1·t>:tt ~ 'L1t n oth""t" w:ndn11l!~. (t ~lV"'S :t pr:i.cti<·:i.llv ...;tra1.!"ht-l.nt> niotion. VitJt V ... ry llttlt> .... train c10tl Wt·,1r.

rhe to· ... ·~r tni.:-l e '"l lnd p.trt 11( fht>

i>l tlff)rn1 hav.;- b"Pn cut to :oit111w r·l~:u·!y tht-> working- 11t' tht:> no~·kl-'r \rm 'l.njl 1_·ni\'er~al Swiv~l.

\V irulmill 11 u1 n l> R <"HI , o! Ort•l{••n Pint>. eonneC':ted to the Lniversal ~\'\•ivPI b;· steel :.oplice plates.

Fi:.:-. .\.:.!

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14

I.B.C. ··Si1nplex~' Windntills

Fig. A.3

Shoiving Wind E ngine. WhePl Spiders. Crank Shaft and Inspection Ladder

WI~""D E:NGINE

It is built low down on the top of the tower, eliminating the severe racking strains and wea r caused by the leverage of high and heavy super-structures.

It is made throughout of semi-steel, cast steel and mild . reel, giving the greatest pos ible strength for the weight of material used . The design also lends itself to withst:rnd great strain with minimum weight. and the form of all castings is such that no internal trains are set up during m:mufacture.

STROKE

The length of stroke has been fixed to suit the average conditions of depth of bore and diamete r of pump cylinder to raise the maximum quantity of wate r with the 1 ightest service:ible winds.

CRANK SHAFT

Large diameter ·olid special steel crankshafts. forged by special machine ry, :ire provided with long 1ourn:.d · on each side of the crank; they are perfectly interch:inge:ible. hence. should it be neces,an: through rn\· c::iusr t•l replace onto> . anv h:indv man ·011!,! ctCJ the

job in a few hours. There are no separate crank discs. pins. or nuts to work loose and cause trouble.

WHEEL SPIDERS These a re steel castings fully annealed. and are

considerably lighter than cast iron for a given strength. They are bored out a definite amount 5maller than the diameter of the crankshaft. are heated and shrunk on the shaft against shoulders turned thereon. and are also strongly keyed. These spide rs cannot -hi ft or work loose, ;rnd will never give trouble .\lany pounds \\·eight are -;aved to ou r clients in freight, railage and carriage.

BEARIJ.\"GS Two long bearings of special anti- friction metal are

provided for the crankshaft, one being placed on either side of the crank. T hese shaft bea ring liners and also those on the crank-pin are die-cast and therefore accurate in ail dimensions. In the end of the rear be:ir­ing is pbced the ball thrust bea ring. Any of these bear­ings may be renewed in a few minutes. All bearing are lubricated with our I 13 C. Special CrankshJft Crease.

r~~ nnly the "PP.t'ial :rr•'•l-c tb:it Wt! ~upply.

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1

I.B. C. "Sin1plex" Windmills CR_\.NK PIN

The cL ·. pin is forged ·olid with and turned to the SJ -- •= diamete r as the crankshaft. There J.re, there ,,re, no loose parts. Built up cranks ..lre the ;-· .n source of trouble in windmills, all of which , ·;e been entirely done away with in the l.B.C. ·c · plex" solid forged special steel sh::ift.

On the is bolted steel cas oted to · compns•·

__ IVERSAL SWIVEL .<w,;er end of the connecting rod in accurately machined spherical . ~, which, with the housing piv­c inner end of the rocker arm, the universal swivel, free to

rotate a··, oscillate in any position as re­quired b •he varying direction of the wind. The swi. :I is placed just below the platform where it an be examined both from above :ind bdr, 'I, and there is nothing in the WJ.Y to interi re with greasing or adjusting same.

ROCKER A.R}l This is pivoted J.t its outer end to brackets which are

bolted to the ends of the angles \vhich support the platform. At the inner end the universal swivel is pivoted. The length of the I.B.C. "Simplex" rocker is twice as great as on other windmills, and gives what is practicJ.lly a straight !me motion to top end of the pumo rods. Because the J.ngle of vibration is less the wear on the pivots is also less.

Illustrating Rocker A rm, Universal Swivel and Connecting Rod

'·

CONNECTING ROD T~ pos1t10n of the rocker J.rm below the platform makes possible the use of a

connec n~ rod, the length of which is greater than half the diameter of the wind wheel. I he advantaoes of this long connecting rod are obvious - small obliquity, practic;11 ly n? str:in on rocker arm, no. pressure on pivots. no friction, no wear, and a direct vert1cJ.l lift to pump rods.

Efti<-lent .Lubrica.Uon.-Every working pa.rt of the I.B.C. l0

1>11~r Vane Hin!:'6 .. Simpl'-' 1- • Windmill is lub.rlcated and provided with grease with large grease cups. ·r / t-'Y are all within easy reach of the .ladder and are ------~-~~s:-------- cup and 1lust-vrool'.

suffictentl/ ta.rge to last a year without refilling. Thrust t0:::.·n'{, fitted. at the rear

Wheel \1'111 Hplclers or high grade 'a_qc ~1,~t1l ehrunk on and keyed t·l tho 111llatt make lt impossible ror thn111. to work loose or to be

01.Ken urf '('hey tn.ke the place Of l.::oit lrou f'l(>ltlers a.s furnished with

"ther vtndmllls, retlucing co n-'·l~ralil y thtt cost of carriage.

encl of the crank shaft within the back main bearin~. anti ~lwav~

-- ----~-well 1ubrtcated. It reduces rnctton a nd adds to the efficient w.1rking of the windmill. It t!estred. It can be taken out in a couple or mi n utes. Bottom "\"a ne Illnge ha.s extra large ~rease cup with speCJal fool-proof cover, ensuring consta.ot tu brlca.tlon.

Tho Vane Butfer acts In both direc­tions and takes the bul't or the vane

.. when full out or when fully furled. Pull Out Chu.in connected to the pull out rod. through specln.l shea.vea. enables the vane to be furled quickly and without undue strain.

Showing Turntable. Beari11g~. Verne Hinges and Pull-Out Gear l'l:RVI' \HLI<:.-The ettlcicncy of ,t winc.lm1ll Llepenc.ls in t ~t· •:tt lll<'a>iure upon its ability to race n.buut to the , ·;iryin..,

•llcrc11 .. n uf the wind. The LB.C. ·'Stmplt'x" turntabl., is uf tr~e di.J.mt'tl'r. thus giving- stability: and tlw 'V<>ight •>f ho> "tuol ,•ngine is carried on a large' number· nf hard stec>l lialls runntn1' in accurately m<.tchined races. thus •'nsu!·:m; t11rah1ti1y 1tn!l t>nahllng the mill to rPsponc.l promptly to the ,lii.;htP~t • hange in the dire·ction qf the wind. .'l.nother ··ow •r -t •·· · l loall" r»st>its iny force tenllin~ to lift the eni;ine ufr rf>,. • q wo>r. The• mast pipp is Plimin<.tteLI and i.ll WlJrlon:.:

I r ·~ u •· \rt:-iit.Jl .. ,. UHl t ... a:-11ly acces:fible.

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I.B.C. "Sin1plex" Windmills y C:RANK PIN

The crank pin is forged solid with and turned w the same diameter as the crankshaft. There :ire. therefore, no loose parts. Built up cranks are the main source of trouble in wind mills, all of which have been entirely done away with in the l B.C. "Simplex" solid forged specia l stee l shaft.

UNIVERSAL SWIVEL On the lower end of the connecting rod

is bolted an accurately machined sp herical steel cast ing, which. with the housing piv­oted to the inner end of the rocker arm, comprises the universal swivel. free to rotate and oscillate in any position as re­quired by the varying direction of the wind. The swive l is placed just below the platform \\here it can be examined both from above and below, and there is nothing in the way to interfere with greasing or adj usting same.

ROCKER ARM This is pivoted at its outer en~ to brackets which are

bolted to the ends of the angles which support the platform. At the inner end the universal swivel is pivoted. The length of the l.B.C. "Simplex" rocker is twice as great as on other windmills, and gives what is practically a straight line motion to top end of the pump rods. Because the angle of vibration is less the wear on the pivots is also less.

Illustrating Rocker A rm, Universal Swivel and Connecting Rod

CONNECTING ROD fhe pos1t10n of the rocker arm below the platform makes possible the use of a

connecting rod, the length of which is grea ter than half the diameter of the wind wheel. The advantages of this long connecting rod are obvious - small obliquity, practically no strain on rocker arm, no. pressure on pivots. no friction, no wear, and a direct vertical lift to pump rods.

w'

~I

Efficient Lubricatlon.-Every working part or the I.B .C. Cp11~r Vane Hln!l"e ··simplex" \Vindmlll is luliricated and provided with grease with large grease cups. They are a ll within easy reach of the ladder a nd are -------~~~------- cup and dust-proof

~uffktently large to last a yeal" without refilling. Thrust ~o;:~·ng, fitted at the rear

\\heel .lrm Spiders of high grade t!-!t ~t~t:l i::1hrunk o n ~nd keyed

tl> the shal t make it impossible f•Jr them to work loose or eo be t.lken ott. 'I'hey take the place or

l' ·1;;t iron ~plcler!:J "ls furnished with >t lwr ·,.,•intlrnill::1. re<lucing con-

11 1 ... r:lbl}' .. the cost uf carriage.

end of the crank shaft Within the back maln beari n g, and always

--.--,____, well lub ricated~ It reduces !rlctton n.nd adds to the efficient w.1rktng o f the windmill. H desired. ft can be taken out in a co uple ot minutes. Bottom Vane Iltnge has e xtra large grease cup with special fool-proof cover, i:!nsuring consta..ot lubrication.

The Vane .Butte r acts tn both direc­tions a nd takes the bu ft of' the vane

•when full out or when fully furled. Pull Out C hain connected to the pull ou t rod through specia l sheaves. pnab les the vane to be furled quick ly ·in' l without undue strain.

Showing Turntabte, Bearings, Vane Hinges and Pull-Out Gear l'L lt:\ T .\ Bf,F. -The erticiency ur a windmill depends in a ,;Teat meu.~urP upon its ;thility to face about to the varyini.;­d1r•·•'tt<1>1 or thP wind . The I.B.C . "Simplex" turnrn.ble is of large 1.litimet"r. thu~ ~inng- stability; and the weig-ht or rh 1~ ·.nn1l eng-1n~ ls l'arrieU un a larr:-t:! nurnber of hard steel balls runn1n~ in u 1·111 .. ttely machinet.l ra.ceH, thus An8urin~ <t ''"·''.lit\· and en 1hlini.;- the milt to respond promptly to the slighte•t <'h.i.nc; .. in tht• din ct1un "r the wind. \nothPt' row

t t I uaJI~ t°l' .... i~l:i \.llY f,q·c··· tendin~ to lift r.he cn,1;.;"ine ot"r tht• tn\\"t"r. Tht ' rn L::::t !'IP~· lS rliITilq;.t~~d ·1..n11 tll '\'(Jl'kinr: r ~ · \ 1s1b!,• ind . ~ . t.:-id:,· lt.'~..:e . \~1hlP.

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1

I.B.C. ·'Simplex" Windmill BEARIXG

The thrust bearing is the fulcrum from \\"hlch the pressure of the wind reacts, and is therefore extremely important to the efficient working and uurability of the windmill. The I.B.C. ··simplex" ball thrust bearing is maue from the finest material and highest grade' of work-

, manship that the world can supply. It is fitted at the rear end of the crankshaft \\"ithin the back main bearing and can be examine'd or taken out anu replaceu in a few minutes, the only tool required heing a spanner to tlt the nuts of the back beanng cap of tht> cra'1.l<::>hatt. lt runs continuously in the ~TPase of the back hearin:;.

B.\.LA:\"CE WEIGHTS Bala.nee weights are supplied on all l.B.C. "Simplex"

\Vindmills, to balance the pump rous. anu a porti"n or the water column. ThP weig-hts are rel:ttively :;mall and are placed on the outer end of that wheel arm which is directly opposite the' crank. These weights :;houltl h•' .;;o placed that the ·windmill will stop in a calm with the plunger at the top •JI' the stroke.

F i ~. _\ Ji

Showing Vane, Vane Sheet lrm mul Pull-Out GPar

GOVER~OR

The function at' the governing device in a windmill is to hold the wheel facing the wind until the pre,.,.ure exceetls a. certain limit, after which the wheel is allowed to blow round horizontally, by stages, towards the vane, a,; the velocity nf the' \\"ind increases. This rPduces the •'rtective area of the sails, conseriuently it prevents the wheel racing and incidentally re'duces the strain o n the tnwer and the entire mechanism. To keep the whPel facinc; the wind and to pr<"ve·nt it blowing- toward the \.ine requires, therefore, somp <lefinite resistance," accord­in.:; tn the velocitv of the winu in which is desired the null . hottld work . - In thP I.D.C. "Simplex" this rPsistance 1s the detinite \veight ol' the vanP, raise1l a tlt>linite he'ic;ht. for evp1·y <legree by which the anc-l•' bf'tW<'en th<' wheel 1 nd th<> vane i8 rt'duced ~" th<' pt·Pssttre "I' th<' wind inr1·pasP"s beyonu the prP-ddPrmirwd amnunt ;tll.,w<Ll>le

LCBRIC..\.TIO~ ThP LB.C. ' "Simplex" is ol•·si>:ne<l ~o that .. very

w•1rktni:;- part. no matter how app;11·ently un1m1HH·tant. is <'ontin uously and 1'tlici.:ntly ltthrt<'alP•l. Th" hParinc; hqxr·~ r,onta.inin.;; tlH" lubricant '1rP et1Vf'rt"'.l<l to f."XCludr' l:tin. o!Ust Ol" f'antl.

'flw special I. B.C. · ·simplex" Luhri<':tt:.inc; <"}rPasc m 1st I><· ttsctl throuc;hout. [t pns:-c"'ses all the prnpPrli<'" l"f'•1ttirPrl fnr thio; i<lt·"al method of lubricatwn. It will not u Plt nr run during- thP h~Lt of sumn1er. n~itht-•r v.:ill it h;tnlPn in the winter.

WL'\D WHEEL This is very strongly designed on scientific and

mechanical lines. enabling i t to withstand the' heavy strain s put on it by the forces of the wind during storms . • The wheel arms are str ongly b r aced , a n d all parts are of exact dimensions, being made by spe"c ial machine1·y. The sails are correctly desig-ned, the area, angle anu ::;et being such that e'very square inc h con tnbutes its quota to utilis ing the power of the wind. This correct proportion ·1nd the absence of unnecessary projecting parts does away with all roa r ing noises; in fact in this anu all •H her respects it is the' ::iilent "Simplex" \\'inrlm1ll. ThP , dl:o are ma.de of heavy gaug-e o-alvanized tite~l . corru~ate1l at hoth ends, which greatly adds to their stiffnPss, b>'sidt's giving them a very neat app-earancP.

• BR.AKE The correct relative position for wheels anu vanes

1f the I.B.C. "Simplex" >\'indmi!ls to attain when in the t>Xtreme out positio n under the influence ol' a gale. has bPen calcul:itpd with great precision, and a brake und>'r tht'SP" <'on tlitions is quite unnecessary. There is no ·lang1>r of the \Vinclmill running backward when governing in a .;alP.

IXSPECTIO~ LADDER Close to the underside or the wind wheel is a lar<:P

square> platform built of he:tvy harclwoo•l and attached to the towp1· with strong steel angles. This platform is reached hy a stP.Pl ladder. Above the platform :s a strong steel inspection ladder secured to the turntahle ·tnd revolving with it. as illustrated in Fig. A.3. When the attendant steps on this ladde r it ceases to be a matter for concern to him how the' direction of the wind varies. t'or he is PPrfectly safe. When he reaches the top the1·p is behind him a safety bar which makes it impossible for him to fall. From this posi tion all bearings and work­ing parts are easily reached, so that lubrication is easily tttenrletl to an•! inspection made without clang-f'r.

Pl"LL-OUT WI:.\"CH ..\. strong worn1 gear pull-out winch is supplie<l, which

will hold the v:1ne tn •lny position without ratchets or pawls. It is Pa,.. tly an<! runveni!)ntly operated. The pull­out wire has :t direct pa~sage through thP swive'l, :ind will not catch "r wear \\·hen the mill is workinz.

.\ll heavy superstructun•s, short connecting rorls, short r'wker arms with short !rnpport>'<. discs with wrist ptns anrl nuts, hP:1vy whet•! spirier e:istings, brake b:inrls anrl enTs, :;hort pitman ~<!R, wood bearings, sprin,.s. mast

pipes. ~mall turnrahlt>."'.,.:.'tc .. which are the trouhlesomP part>< in wintlmil~an1i tncrease the cost of the wmclmill tnd ErPight, ratla;.;e, c:>Lfltnge, and erection. have bP»n

un1itt1•d irl' the design 1)f the "Sin1plex."

WEIGHTS OF "SL.\IPLE:X" DLH ECT- .. \.CTl:\"G WI="'D11ILLS .. \.~D TOWERS

::-<izo .\ l :II

Pt.

•.;

-"

=r=============================== -~-~----------~~----========================================== ··-r? ~rill Only '\Vith :lOft. TowPr \\' ii h 111 r"t ~r, 1\\,'•'r With 50ft. TowPr o•wt. qr«. lbs. cwt. q rs. ll>s.

:I L!l ~ •l•"l _J

... I I

J •}• )

l G I

1 I

I tl 1 '..!ti II

7

"

,. \'t . Jl"S. II IS.

1'1 ,, ·•. - ' .,, .. '. I~ -·· ~ r) I 7

\Vi th lliltt. Tower cwt. '[rs. lhs. t~\Vt. qr~. llo~.

I) :.!7 :!H I) '1 •l •l ,, 1) ... I) OI •JtJ

~ I -. -,,, •l \ till ,, ,, tj ~ I II

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='izc ,,[ \\'inllrnill

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Pap:e

17

The To-wer

Girt

, ____ _ row e l" L eg

F ig- . .L\.. 7

To\ve r B n loOe

Platform Joist

-...._ _____ Platform .\n!;'le

:\e\'Pnth Gir t 1

Butt ,Jdlnt o r Towe r L~'l"

ro w e r Les;-

T e nth Girt

Grou •Hl Lcv~ l

~ r.-- Earth P lates .0 'i.

., ­;I}

" -; !

'\.nc h o r Plates

1.8.C. '"Simplex" \VinJmill Towers are t11e strongest and simplest towers made. The tower legs, which are of angle steel. butt one on the other. and are secured with heavy angle steel spliced pieces placed inside the legs ~md strongly bolted. This method prevents all she:uing stn:~s on the bolts and makes a firm leg from top to bottom. The girts are of angle steel and the braces are flat steel. All bolt holes are punched i-n. jigs with special machinery \\"hich ensures accu~cy in every case. making them go together easily. The legs are in 10-feet sections. \\hich make them easy to erect and also to

handle \\"hen transporting, minimum rates of railage and less liability to damage in transit are also obtained.

All 1. 8.C. "Simplex" towers have four legs (which is the strongest form that can be built). The platforms are extra large and .ue m:iJe ot first quality hardwood supported by steel :ingles strongly bolted to the tower.

A strong laJder of ~reel is bolted to one side of the tower :ind extends from the ground·to the platform.

Bush timber posts are not recommended for towers as these move in time mnn~ to the action of the wet weather and other conditions.

Al l towers are we ll pain ted with anti-rust pain t when alt work on them h:is been completed.

X OTE.-1.B.C. "ipC'Cial 'Vimlm ill G t·casc• nwst he usc<L on a ll '"Sitn pl<''- .. \Vi 11tlmil is to en»urc satis facto t·y ~en: ice.

Tower iUecisurem ents Given Are T ak en From

Ground Level

PRICE , OF I.B.C. ·· - r~IPLEX"' DIRECT-ACTE G WINDMILL

PnC'e Prict~ PrieP Prirt Pric•' nf \\'inti m ill With 30 Ct. Tower \Vi th -llJEt. Tower \Vi th 5 IHt. Tuw•'r \Vir.h 1if1(t. ToWt-1

e ~. (I. £ s. d. e ... <l. J! .... t l. t: .... l l :~ 11 (I II 18 0 0 ;; l 0 () H:! t) II · ~ II 0 ;, l \) 0 s;, I) I) 100 0 0 l:!O 0 II SH \) 0 l:!S () 0 I 1;, I) 0 rn;, II II

1 1;; ti 0 is;, II II l!IO II (I :! lfl () II

:!110 0 0 ~ 10 II II :! till I) t i .!'itl 0 II

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