 the work @-@ ins had ended , work continued on finishing the cap which was scheduled for lift @-@ on in October . The weather hampered the work initially , but the application of a modern microporous paint , designed to withstand normal movement of the timber and yet remain waterproof , was completed in time for the lift @-@ on . A mini work @-@ in was held the weekend before the cap was lifted , with 17 people participating over the weekend . Final work was done to the cap and a new window was fitted to the stone floor of the mill . The tarpaulin was removed and the trammel dismantled . The 5 @-@ ton cap was lifted into place by a mobile crane on 24 October 1983 , watched by a crowd of some 70 people . The fitting of the cap was toasted with beer from Adnams Brewery , Southwold .   Restoration work in 1983 cost £ 1 @,@ 408 . Grants were received from the Association of Independent Museums , Blo ' Norton Women 's Institute , Ipswich Historical Transport Society , the National Association for Gifted Children , Mr D. Porter and the Society for the Protection of Ancient Buildings . Further income came from the sale of guide books and a drawing of the mill by Wilf Foreman .   = = = 1984 = = =   Four work @-@ ins were held during 1984 . The first two were by apprentices from Eastern Electricity Board . Thelnetham Windmill was chosen at the project to benefit from the Young Person 's Development Project for that year . Pakenham Watermill had previously benefited from the project , and its owners , the Suffolk Preservation Trust , had suggested that Thelnetham Windmill would be a good candidate for the scheme . Two separate parties spent a week each at the mill . A mains electricity supply was provided . An underground cable was laid with assistance from British Telecom who were trialling a thrust borer which had been developed at their research facility at Martlesham Heath . The thrust borer laid 25 yards ( 23 m ) of ducting through which the mains cable was pulled into position . The mill was then supplied with lights and sockets on each floor .   Other work undertaken by the apprentices involved repairing some frost damage to the foundation brickwork , digging a drainage trench around the mill and moving the auxiliary engine into position . A concrete path around the tower was trapping moisture , leading to rising damp . A French drain was constructed around the mill to remedy these problem . A 21 horsepower ( 16 kW ) Ruston & Hornsby 4YHR diesel engine had been purchased in 1981 and was fitted onto a permanent concrete base with the aid of a mobile crane . After fitting it was then painted . Some missing or broken parts were made or repaired as necessary .   Off @-@ site , the new brake wheel and fantail were made . The original brake wheel was too rotten to repair , and showed evidence that it had been altered from the original one installed in 1819 . The original brake wheel was 6 feet ( 1 @.@ 83 m ) diameter to allow the Common sails to run at their optimum speed . When the mill was modernised in 1832 it was necessary to alter the gear ratios within the mill , as Patent sails run at a slower speed than Common sails . The great spur wheel was increased in diameter and the stone nuts reduced in diameter . The brake wheel was also rebuilt , with a cast iron segment ring fitted in place of the original cogs , resulting in a wheel 7 feet 2 inches ( 2 @.@ 18 m ) in diameter . The opinion of professional millwrights was sought , and it was decided that a scaled @-@ up version of the original brake wheel would be made , but retaining the cast iron teeth segments . The remains of the original brake wheel were retained as an exhibit in the mill . The original iron segments were all broken , so a pattern was made and new segments were cast in heat @-@ treated malleable cast iron . When the brake wheel was completed it was dismantled and transported to the mill ready for reassembly .   The fantail was made . Some of the small gears were replaced . The stocks were made from pitch pine and the blades from Douglas fir . Work at the mill over the winter included repairs to the brickwork and windows , with only one window still needing attention when the first work @-@ in began . New beech cogs were fitted to the crown wheel , which was restored to its correct position on the upright shaft .   The stocks and sails were made during the two work @-@ ins held in July and August , a total of 41 people attending over the two weeks . A second @-@ hand stock had been bought in the 1920s and preserved at the mill , but upon examination it was found to be unfit for use . Thus two new stocks were required instead of one . Modern steel stocks had already been discounted on cost and durability grounds , leaving two options . Traditional stocks made from a single piece of timber ,
Ġthe Ġwork Ġ@ - @ Ġins Ġhad Ġended Ġ, Ġwork Ġcontinued Ġon Ġfinishing Ġthe Ġcap Ġwhich Ġwas Ġscheduled Ġfor Ġlift Ġ@ - @ Ġon Ġin ĠOctober Ġ. ĠThe Ġweather Ġhampered Ġthe Ġwork Ġinitially Ġ, Ġbut Ġthe Ġapplication Ġof Ġa Ġmodern Ġmic rop orous Ġpaint Ġ, Ġdesigned Ġto Ġwithstand Ġnormal Ġmovement Ġof Ġthe Ġtimber Ġand Ġyet Ġremain Ġwaterproof Ġ, Ġwas Ġcompleted Ġin Ġtime Ġfor Ġthe Ġlift Ġ@ - @ Ġon Ġ. ĠA Ġmini Ġwork Ġ@ - @ Ġin Ġwas Ġheld Ġthe Ġweekend Ġbefore Ġthe Ġcap Ġwas Ġlifted Ġ, Ġwith Ġ17 Ġpeople Ġparticipating Ġover Ġthe Ġweekend Ġ. ĠFinal Ġwork Ġwas Ġdone Ġto Ġthe Ġcap Ġand Ġa Ġnew Ġwindow Ġwas Ġfitted Ġto Ġthe Ġstone Ġfloor Ġof Ġthe Ġmill Ġ. ĠThe Ġt arp aul in Ġwas Ġremoved Ġand Ġthe Ġtr amm el Ġdismantled Ġ. ĠThe Ġ5 Ġ@ - @ Ġton Ġcap Ġwas Ġlifted Ġinto Ġplace Ġby Ġa Ġmobile Ġcrane Ġon Ġ24 ĠOctober Ġ1983 Ġ, Ġwatched Ġby Ġa Ġcrowd Ġof Ġsome Ġ70 Ġpeople Ġ. ĠThe Ġfitting Ġof Ġthe Ġcap Ġwas Ġto asted Ġwith Ġbeer Ġfrom ĠAd n ams ĠBrewery Ġ, ĠSouth w old Ġ. Ġ Ġ ĠRestoration Ġwork Ġin Ġ1983 Ġcost ĠÂ£ Ġ1 Ġ@ , @ Ġ408 Ġ. ĠGrants Ġwere Ġreceived Ġfrom Ġthe ĠAssociation Ġof ĠIndependent ĠMuse ums Ġ, ĠBl o Ġ' ĠNorton ĠWomen Ġ' s ĠInstitute Ġ, ĠIps wich ĠHistorical ĠTransport ĠSociety Ġ, Ġthe ĠNational ĠAssociation Ġfor ĠG ifted ĠChildren Ġ, ĠMr ĠD . ĠPorter Ġand Ġthe ĠSociety Ġfor Ġthe ĠProtection Ġof ĠAncient ĠBuildings Ġ. ĠFurther Ġincome Ġcame Ġfrom Ġthe Ġsale Ġof Ġguide Ġbooks Ġand Ġa Ġdrawing Ġof Ġthe Ġmill Ġby ĠWil f ĠFore man Ġ. Ġ Ġ Ġ= Ġ= Ġ= Ġ1984 Ġ= Ġ= Ġ= Ġ Ġ ĠFour Ġwork Ġ@ - @ Ġins Ġwere Ġheld Ġduring Ġ1984 Ġ. ĠThe Ġfirst Ġtwo Ġwere Ġby Ġapprentices Ġfrom ĠEastern ĠElectricity ĠBoard Ġ. ĠThe l net ham ĠWind mill Ġwas Ġchosen Ġat Ġthe Ġproject Ġto Ġbenefit Ġfrom Ġthe ĠYoung ĠPerson Ġ' s ĠDevelopment ĠProject Ġfor Ġthat Ġyear Ġ. ĠP aken ham ĠWater mill Ġhad Ġpreviously Ġbenefited Ġfrom Ġthe Ġproject Ġ, Ġand Ġits Ġowners Ġ, Ġthe ĠSuffolk ĠPreservation ĠTrust Ġ, Ġhad Ġsuggested Ġthat ĠThe l net ham ĠWind mill Ġwould Ġbe Ġa Ġgood Ġcandidate Ġfor Ġthe Ġscheme Ġ. ĠTwo Ġseparate Ġparties Ġspent Ġa Ġweek Ġeach Ġat Ġthe Ġmill Ġ. ĠA Ġm ains Ġelectricity Ġsupply Ġwas Ġprovided Ġ. ĠAn Ġunderground Ġcable Ġwas Ġlaid Ġwith Ġassistance Ġfrom ĠBritish ĠTelecom Ġwho Ġwere Ġtri alling Ġa Ġthrust Ġb orer Ġwhich Ġhad Ġbeen Ġdeveloped Ġat Ġtheir Ġresearch Ġfacility Ġat ĠMart les ham ĠHeath Ġ. ĠThe Ġthrust Ġb orer Ġlaid Ġ25 Ġyards Ġ( Ġ23 Ġm Ġ) Ġof Ġduct ing Ġthrough Ġwhich Ġthe Ġm ains Ġcable Ġwas Ġpulled Ġinto Ġposition Ġ. ĠThe Ġmill Ġwas Ġthen Ġsupplied Ġwith Ġlights Ġand Ġsockets Ġon Ġeach Ġfloor Ġ. Ġ Ġ ĠOther Ġwork Ġundertaken Ġby Ġthe Ġapprentices Ġinvolved Ġrepairing Ġsome Ġfrost Ġdamage Ġto Ġthe Ġfoundation Ġbrick work Ġ, Ġdigging Ġa Ġdrainage Ġtrench Ġaround Ġthe Ġmill Ġand Ġmoving Ġthe Ġauxiliary Ġengine Ġinto Ġposition Ġ. ĠA Ġconcrete Ġpath Ġaround Ġthe Ġtower Ġwas Ġtrapping Ġmoisture Ġ, Ġleading Ġto Ġrising Ġdamp Ġ. ĠA ĠFrench Ġdrain Ġwas Ġconstructed Ġaround Ġthe Ġmill Ġto Ġremedy Ġthese Ġproblem Ġ. ĠA Ġ21 Ġhorsepower Ġ( Ġ16 ĠkW Ġ) ĠRust on Ġ& ĠHorn s by Ġ4 Y HR Ġdiesel Ġengine Ġhad Ġbeen Ġpurchased Ġin Ġ1981 Ġand Ġwas Ġfitted Ġonto Ġa Ġpermanent Ġconcrete Ġbase Ġwith Ġthe Ġaid Ġof Ġa Ġmobile Ġcrane Ġ. ĠAfter Ġfitting Ġit Ġwas Ġthen Ġpainted Ġ. ĠSome Ġmissing Ġor Ġbroken Ġparts Ġwere Ġmade Ġor Ġrepaired Ġas Ġnecessary Ġ. Ġ Ġ ĠOff Ġ@ - @ Ġsite Ġ, Ġthe Ġnew Ġbrake Ġwheel Ġand Ġfant ail Ġwere Ġmade Ġ. ĠThe Ġoriginal Ġbrake Ġwheel Ġwas Ġtoo Ġrotten Ġto Ġrepair Ġ, Ġand Ġshowed Ġevidence Ġthat Ġit Ġhad Ġbeen Ġaltered Ġfrom Ġthe Ġoriginal Ġone Ġinstalled Ġin Ġ18 19 Ġ. ĠThe Ġoriginal Ġbrake Ġwheel Ġwas Ġ6 Ġfeet Ġ( Ġ1 Ġ@ . @ Ġ83 Ġm Ġ) Ġdiameter Ġto Ġallow Ġthe ĠCommon Ġsails Ġto Ġrun Ġat Ġtheir Ġoptimum Ġspeed Ġ. ĠWhen Ġthe Ġmill Ġwas Ġmodern ised Ġin Ġ18 32 Ġit Ġwas Ġnecessary Ġto Ġalter Ġthe Ġgear Ġratios Ġwithin Ġthe Ġmill Ġ, Ġas ĠPatent Ġsails Ġrun Ġat Ġa Ġslower Ġspeed Ġthan ĠCommon Ġsails Ġ. ĠThe Ġgreat Ġspur Ġwheel Ġwas Ġincreased Ġin Ġdiameter Ġand Ġthe Ġstone Ġnuts Ġreduced Ġin Ġdiameter Ġ. ĠThe Ġbrake Ġwheel Ġwas Ġalso Ġrebuilt Ġ, Ġwith Ġa Ġcast Ġiron Ġsegment Ġring Ġfitted Ġin Ġplace Ġof Ġthe Ġoriginal Ġc ogs Ġ, Ġresulting Ġin Ġa Ġwheel Ġ7 Ġfeet Ġ2 Ġinches Ġ( Ġ2 Ġ@ . @ Ġ18 Ġm Ġ) Ġin Ġdiameter Ġ. ĠThe Ġopinion Ġof Ġprofessional Ġmill wr ights Ġwas Ġsought Ġ, Ġand Ġit Ġwas Ġdecided Ġthat Ġa Ġscaled Ġ@ - @ Ġup Ġversion Ġof Ġthe Ġoriginal Ġbrake Ġwheel Ġwould Ġbe Ġmade Ġ, Ġbut Ġretaining Ġthe Ġcast Ġiron Ġteeth Ġsegments Ġ. ĠThe Ġremains Ġof Ġthe Ġoriginal Ġbrake Ġwheel Ġwere Ġretained Ġas Ġan Ġexhibit Ġin Ġthe Ġmill Ġ. ĠThe Ġoriginal Ġiron Ġsegments Ġwere Ġall Ġbroken Ġ, Ġso Ġa Ġpattern Ġwas Ġmade Ġand Ġnew Ġsegments Ġwere Ġcast Ġin Ġheat Ġ@ - @ Ġtreated Ġmal le able Ġcast Ġiron Ġ. ĠWhen Ġthe Ġbrake Ġwheel Ġwas Ġcompleted Ġit Ġwas Ġdismantled Ġand Ġtransported Ġto Ġthe Ġmill Ġready Ġfor Ġre assembly Ġ. Ġ Ġ ĠThe Ġfant ail Ġwas Ġmade Ġ. ĠSome Ġof Ġthe Ġsmall Ġgears Ġwere Ġreplaced Ġ. ĠThe Ġstocks Ġwere Ġmade Ġfrom Ġpitch Ġpine Ġand Ġthe Ġblades Ġfrom ĠDouglas Ġfir Ġ. ĠWork Ġat Ġthe Ġmill Ġover Ġthe Ġwinter Ġincluded Ġrepairs Ġto Ġthe Ġbrick work Ġand Ġwindows Ġ, Ġwith Ġonly Ġone Ġwindow Ġstill Ġneeding Ġattention Ġwhen Ġthe Ġfirst Ġwork Ġ@ - @ Ġin Ġbegan Ġ. ĠNew Ġbe ech Ġc ogs Ġwere Ġfitted Ġto Ġthe Ġcrown Ġwheel Ġ, Ġwhich Ġwas Ġrestored Ġto Ġits Ġcorrect Ġposition Ġon Ġthe Ġupright Ġshaft Ġ. Ġ Ġ ĠThe Ġstocks Ġand Ġsails Ġwere Ġmade Ġduring Ġthe Ġtwo Ġwork Ġ@ - @ Ġins Ġheld Ġin ĠJuly Ġand ĠAugust Ġ, Ġa Ġtotal Ġof Ġ41 Ġpeople Ġattending Ġover Ġthe Ġtwo Ġweeks Ġ. ĠA Ġsecond Ġ@ - @ Ġhand Ġstock Ġhad Ġbeen Ġbought Ġin Ġthe Ġ1920 s Ġand Ġpreserved Ġat Ġthe Ġmill Ġ, Ġbut Ġupon Ġexamination Ġit Ġwas Ġfound Ġto Ġbe Ġunfit Ġfor Ġuse Ġ. ĠThus Ġtwo Ġnew Ġstocks Ġwere Ġrequired Ġinstead Ġof Ġone Ġ. ĠModern Ġsteel Ġstocks Ġhad Ġalready Ġbeen Ġdiscounted Ġon Ġcost Ġand Ġdurability Ġgrounds Ġ, Ġleaving Ġtwo Ġoptions Ġ. ĠTraditional Ġstocks Ġmade Ġfrom Ġa Ġsingle Ġpiece Ġof Ġtimber Ġ,