Model Engineer issue 4724 **FREE 20 PAGE PREVIEW**

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Vol.231No.472425August–7September2023

308SMOKERINGS

News,viewsandcommentontheworldof modelengineering.

309IMLEC2023

RobSpeareobservesthefirstday’srunning atAshtonCourtinBristol.

312RECYCLINGA3½ INCH GAUGESOUTHERNSCHOOLS LOCOMOTIVE

RobertHobbsturnsaboxofbitsintothe Southern’s‘V’Classlocomotive Winchester

317ASIMPLEDEVICEFOR PRODUCINGAPLANK EFFECT

DaveWoolvenmakesajigforscoringplanks accurately.

320ANENGINEER’SDAYOUT

RogerBackhousepaysavisittotheKelham IslandIndustrialMuseuminSheffield.

324ANEWWORKSHOP

PeterSeymour-Howelltakesabreakfrom building FlyingScotsman tobuildanew workshop.

326LNERB1LOCOMOTIVE

DougHewsonpresentsatruetoscalefiveinchgaugemodelofThompson’sB1.

330SLOTTINGONTHELATHE

JacquesMaurelselectstherighttoolsfor variousslottingjobsonasmalllathe.

333THEEATINGOFELEPHANTS

SteveGoodbodyarguesthatanythingis possibleifyoutakeitabiteatatime.

338ADIRTYTRAM–ABITOF NOSTALGIA

AshleyBestcreatesaBoltontrammodelasit reallywas–dirtyandunkempt.

341RADIALVALVEGEARSAGAIN

DuncanWebsterexploresthesubtletiesofvalve gearoperation.

346BOOKREVIEW

ChrisHibberdreadsPeterScott’sbookon constructingaShaylocomotivein45mm gauge.

347AFIVE-INCHGAUGE0-4-0 PADARNRAILWAYTENDER LOCOMOTIVE

Luker presents FireQueen,aWelshslatequarry locomotive.

352CLUBNEWS

JohnArrowsmithcompilesthelatestfrom modelengineeringclubsaroundtheworld.

355CLUBDIARY

FutureEvents.

Motherand DaughterTram

SarahandRebeccaBrightman havebecomethefirstmother anddaughtertramcrewat CrichTramwayVillage, hometotheNational TramwayMuseum, sincedaughter,Rebecca, passedoutasatram conductorrecently,atthe ageof16.

Bothwomenhaveakeen interestinsocialhistory andtransport,withSarah volunteeringatCrichTramway Villagesinceshewas17years old,becomingaconductorat18 andgoingontobecomeatram driverin2001.Asaresult,Sarah passedonherenthusiasmto Rebecca,whohasbeenvisiting themuseumsinceshewasfive weeksold.

SarahandRebeccashare thefactthattheirfirstsolo conductingtripsatCrichwere onSheffield74tramcar.

WhileRebeccaisabout tobeginanAppliedScience courseatcollegeinSeptember, SarahcreditsCrichTramway Villagewithgivinghermany lessonsinlife.

Sarahcommented: ‘Those whoknewmeatthestartwill confirmthatIwasaquiet,shy andinnocentyounggirland Ispentmanyeveningsinthe Cliffpubhavingagreattime withtheothervolunteers. Ihavemademanylifelong friendswhorememberthe tramsinthecitiesandpassed onsomegreatstories.Sadly, manyofthemhavepassed awayorareinillhealth,butI hopeIcanpasssomeofthese storiesontootherpeople.Itis greattoseesomanyyounger peoplebeinginterestedin tramsandourmuseum,and startingthesamejourneythatI didnearly30yearsago.

‘Webothagreethatthe museumisafriendlyand welcomingenvironment,and itprovidesgreatexperience inworkingwiththepublic.We arealsolookingforwardtomy son,Daniel,startinghiscareer atCrichintwoyears’time; we’recallingitTheBrightman Takeover!’

CrichTramwayVillage isopendailySunday3rd

Septemberandthensixdaysa weekuntil5thNovember2023. Fordetailspleasesee:www. tramway.co.uk

MidlandsShow

Howquicklythesummer passesusby!It’stimenowto bethinkingabouttheautumn andoneeventnottobemissed isofcoursetheMidlands ModelEngineeringExhibition, tobeheldattheWarwickshire Eventcentre(‘TheFosse’) fromthe12thtothe15thof October.Both ModelEngineer andtheSocietyofModeland ExperimentalEngineerswill bepresent,markingtheirjoint 125thanniversary.Thelectures arebackandJohnWilks’ newlycompleted10¼ inch gaugeLNERP2 CockO’The North willbeondisplay.There willbetheusualdisplayand competitionclassesandifyou wishtoenteramodel,thisis thetimetobethinkingaboutit! Moreinformationisavailable atwww.meridienneexhibitions. co.uk/events/midlands-modelengineering-exhibition.

RobRoyRally

Hereisanotherdateforyour diary-thisyear’sRobRoyRally willbeheldattheBromsgrove SocietyofModelEngineer’s trackattheAvoncroftMuseum ofHistoricBuildingson Saturdaythe16thofSeptember, from11amuntil4pm.The rallyisopennotonlytoRob Roylocomotives(andtheir owners!)butalsotoany3½ inch gaugelocomotive.Formore informationpleasecontactIan Horsfieldon01386-792628.

UnknownEngine

Thisengineisnolonger unknown!Threereadersagree onitsidentity.Charlie(‘Chuck’) BarkeroftheYorkSMEwas firstofftheblockstotellme itisa2x2horizontalmill enginefromClarkson’sofYork. ThiswasbackedupbyJason BallamyandalsoJohnHurst fromPeterboroughSME,who hassuppliedaphotographofa completeengine(background pillowcasessuppliedbyMrs Hurst).Theyinformmethat thedrawingsandcastingsare stillavailablefromBlackgates (www.blackgates.co.uk)intheir separateClarkson’scatalogue.

DIANE CARNEY Assistant Editor

MARTIN EVANS Editor

Sarah(left)andRebeccaBrightman (photocourtesyofCrichTramway Village). CrichTramwayVillage.

Midlandsshow.

Blackgates.

IMLEC2023

PART1

TheInternationalModel LocomotiveEf ciency Competition(IMLEC)is anannualcontestthatmoves betweennumeroushost societies,beingsupported andsponsoredbythe Model Engineer magazinesinceitwas rstheldin1969.

With2023beingthe50th anniversaryoftheopeningof theirraisedtrackatAshton CourtEstateinBristolbythe BristolSMEE,societypresident BernardNorthofferedthe servicesofthesocietyto hostIMLECaspartofour celebrations,the rstoccasion since2009.Inthat14years manyfaceshavechanged withinthesociety,sotherewas afairamountoftrainingtodo.

WenoticedthatMaidstone societyhadchosentouse

adigitalscoreboard,so consideredthatifsimilar contentwasalsoavailable tomobiledevices,this couldenhancespectators’ participation,soadopted thatapproachforour event.Furthermore,ourold ‘mechanical’dynamometercar hadlongsincebeenscrapped andanewdynamometercar couldbebuiltusingtheTKP loadcellmeasuringunit,which addedtotheattraction.

Withoursocietysecretary enforcingourGDPR obligations,Ibecamethemain contactforcompetitorsand applicationsandforthemost partinteractionwasdoneusing email,whichavoidedthepostal servicewhichattimeswas unreliableduringtheearlypart oftheyear.

IMLECcanbeslightly Marmite-whilstsomecan’t seethefuninit,othersare avidfans,andmanyfollow thecompetitionaroundyear onyear.Theeventisalsoa reallygoodsocialoccasion,a chancetochatandlearnfrom others,makenewfriendsas wellaswatchsomeamazing competitiveruns.Confounding thefewIMLECdoom-mongers, wehadnotrouble llingthe33 runslots,choosingnottoallow ourownmemberstoenterbut keepingthembackasreserves. Forthosemakingtheeffortto attendoneormoredays,we wantedtoensuretherewasa suf cientlyfulldayofactionto maketheirjourneyworthwhile.

Itwasslightlyambitious,but notthe rsttimeaclubhas hostedthatmanyruns,andwe

RobSpeare reportson thisyear’s IMLECheldatBristolon 7th–9thJuly.

TheIMLECbanner.

fullyrehearsedthetimingsfor thechangeoverofcarriages toensureitwasachievable. Wealsoheldaninternal clubcompetitiontoactasa training/provingsessionfrom whichwelearntagreatdeal.

Oncetheclosingdate passed,therunswereallocated beingsympathetictotravelling distanceandindividual needsanditwasnicethat wewerecomplimentedinthe varietyoftheline-upandthe competitorsequence.Wewere alsopleasedtoproducea comprehensive32-pagecolour programmefortheevent.

CompetitionDay1–Friday

Youcouldn’thaveaskedfor abetterstarttotheday,dry andsunny,butat7:30amit wasalreadyhot.Althoughwe arrivedonsitewellaheadof thestartingtime,competitors andspectatorswerealso arrivingearlybutourreception areawasreadytogreetpeople. Fortunately,wewereable toofferhotfoodandsnacks fromabout10o’clockand manybaconsandwiches wereconsumed,including byourownvolunteers. Severalmembersdedicated themselvestothepreparation ofhotfoodwithallthe proceedsgoingtoalocal Scoutsgroup.However,the ‘weekend’sworth’ofsupply hadbeeneatenbytheendof Friday,somoresupplieswere bought,thesamehappening afterSaturday.

Gettingaheadofthedriver demand,ourcoalteamwas alreadysiftingnewbagsof coaltoremovesmallpieces anddust,thengradeditinto appropriatesizesfor3½ or 5inchgaugelocomotives. Withinourrankswehavetwo ex-professionalswhoworkedin handlingcoalimportsandthey cameequippedwithprecision scalebalances.

Fridayistraditionallya quieterdaywithmanytravelling butmanyIMLECfansinclude theeventasamini-holidayand wewerepleasedatthenumber ofspectatorsaccumulating. Wehadsetamid-daystart,but the rstcompetitorwithdrew

severaldaysbefore,sowe broughtthesecondrunner forwardby15minutes.

FortheBristolIMLECevent, thedirectionisreversed fromnormalrunning.After connectingtrolleysatthe traverser,thetrainrunsa

shorthoptothestationfor passengerloading.Thestart pointisverydeliberately positionedonthedownhill sidetoassisttrainstoget awaycleanly.Thatcan encouragesometobeslightly overambitiouswiththeir

passengersthough,asthere aretwoascentsthatcancatch outoverloadedtrains.

Onthetrack,herearethe runsinsequence.

Run2(photo2)

So, rstonthetrackwasRoger HopkinsfromNottingham SMEE,whogotthedayoffto a nestart.His3½ inchgauge Derby4Fsetoffinthebright sunandalready23degrees. Withfourpassengersin additiontothedynamometer car,hehappilyranlapafterlap withaveryconsistentdrive, covering9lapsinjustover36 minutes.Theobservernoted hehadmadeagoodrun, whileusing0.815lbofcoal, andthiswasagreatstartto proceedings.

Run3(photo3)

NexttolightupwasNickFeast fromBournemouth&District SMEwithhis3½ inchgauge SouthernRailwayQ1.Thesame locomotivehadvaliantlybattled inthepreviousyear’scontest, sohopeswerehigh.The locomotiveisnottoodissimilar insizetothe4FandagainNick gotawaywell,alsotakingfour passengers.Butaftersome reallygoodlaps,hestoppedon lap7toregainpressure.Aftera goodattempttoclimbthebank tothestation,sadlyhestopped shortofthe nishlineand,in afurtherattemptatablowup,ranovertheallowedeight minutesofstop-timeandhad toretire.Nevertheless,avery creditablerunforamedium sizelocomotive.

Run4(photo4)

NextwasDavidShepheard fromtheBracknellsocietywith hisPolly3.ThisPollyisaround 20yearsoldandwasalso enteredinlastyear’scontest atGuildford.His2:15pmrun startedinbrighthotsunwith twopassengers.Although makingsteadyprogress, Davidranoutofsteamatthe bottomoftheclimbupto thetunnel,whilealso nding hisinjectorrefusedtowork. Afterachieving4½ laps,he alsoexceededthemaximum allowedstoptime,forcinga retirement.

RogerHopkinsand3½ inchDerby4F0-6-0.

NickFeastand3½ inchBulleidQ10-6-0.

DavidShepheardand5inchPolly30-6-0.

Bynowthesunwasbaking, andmanyspectatorshad movedundertreesforshade. Wethinkitreached27degrees, andwithmemoriesoflast year’shotdryIMLEC,wehad rebeaterspositionedaround thetrack,althoughhappilytheir serviceswerenotrequired.

Run5(photo5)

FifthwasPaulDaviesfrom StroudMESwithhis5inch gauge‘Ajax’tanklocomotive, althoughsadlybecoming ourthirdretirement.During thelightingupprocess,upon removingtheelectricassist fan,Pauldiscoveredhissteam blowerwasblocked,andwas unabletocontinuetoraise steam.Ourscoreboardwas beginningtoturnbluewithnonnishers.

Run6(photo6)

Nextrunningonthishot afternoonwasPeter Wardropper,representing

SMEE.AlthoughPeterhadn’t competedinanumberof years,his3½ inchgauge Betty RiverDarenth was beautifullypreparedandthe greenpaintwasstrikinginthe brightsunshine.Peterandhis locomotivegaveaveryspirited runwithatrolleyoffour passengers.Takingonwater viabottlesinlaps3,7and10, andcompleting12lapsinjust under28minutes,whileusing 1.405lbofcoal,Peterachieved averycommendablerun.

Run7(photo7)

Ourpenultimaterunofthe rst daywasfromAndyHealey fromGravesendMM&ES. AlthoughowningaBritannia himself,hewasrunningthe Britanniapreviouslyentered byhisnephewKarlMidgeley,a regularIMLECcompetitorwho sadlypassedawaytwoyears agofromCovid-19,sothisrun wasatributetoKarl.

FinishedindistinctiveLNER

blue,AndytooktheBritannia Apollo outforanear flawless runwithsixpassengers, completing14lapswithno stoppages.Theobserver notedthatthiswasa‘great run’,whichconsumed2.45lb ofcoal,Andycompletinghis runin31:55minutes.Itwas becomingclearthatratherthan runningtojust25minutes, driverswhoweredoingwell wereintentonusingevery secondtheycould.

Run8(photo8)

Wrappingupour rstdaywas run8,AlanHaywoodfrom Urmston&DistrictMES.Alan entereda5inchnarrowgauge Hunsletquarrylocomotive Tilly. Alanhadbuiltthistothedesign ofafellowmemberofhis societyanditwasverynicely presentedtoo,settingoffwith aseeminglyambitiousload foran0-4-0,of12passengers acrossthreecarriages.Well, anyconcernswereunfounded andthislocomotivejust seemedtorompaway,and poweredupthegradientswith aplomb,evenpickingupa speedingmarkonlap10.

But,havingdecidedtorun intothe30-minutezone,onlap 11Alanstalledontheclimbto thetunnel,andovertheradio weheardhowhewasstruggling toraisepressure.Itwasstarting togetabitnailbitingwhen, breakingtheradiosilence,we heardthathewasdroppinghis passengersandtryingtoget home.Suddenly,thelocomotive seemedtoburstoutofthe tunnelandgunnedittowards the nishline,asalleyeswere intently xedontherunclock. Toatremendousamountof cheering,Alanpassedthe nish linewithalittleover5seconds togo.Thatwasaclosecalland athrillingendtoour rstday. Coalusageforthisexhilarating runwas3.455lb.

Ithadbeenahotdaybutour volunteershadstoodupwellto thechallenge.Ithinkwewere allpleasedathowthedayhad cometogether.Sohowwouldit goonday2…?

PaulDaviesand5inchAjax0-4-0T BattyThomas

AndyHealeyand5inchBRBritannia4-6-2 Apollo

PeterWardropperand3½ inchLBSCBetty2-6-2.

AlanHeywoodand5inchHunslet0-4-0ST

Tilly

PhotographscourtesyofRob Speare,BernardNorthand RichardPearson.

RECYCLING ASOUTHERNSCHOOLS 3½ INCHLOCOMOTIVE

Continuedfromp.272

M.E.4723August11

Thecrossheadswere tacklednextandare formedfromtwo sections,themainsection beingmadefromamildsteel blankthatwassquaredupon theverticalmillbeforeturning thepistonrodcollarinthe lathe. Photograph42 shows theblankbeingroughedout inthefourjawindependent chuckmountedinmyMyford. Theblankwasthentransferred totheverticalmillandthe throatcutoutusinganendmill (photo43).Tocompletethe crossheadweneededthe‘tee’

Robert Hobbs takesabox ofbitsandturnsouta SchoolsClass4-4-0

Roughingoutthecrossheadblank.

Crossheadthroatbeingcutinthemill.

sectiontoslideintheguide barsandthese‘tees’were formedusingthemillandare shownin photo44,together withthemainsection.The ‘tees’haveascallopcutinthe loweredgewhichwillenable theconnectingrodto tinthe crosshead.Thethreeslidebars werefabricatedfromstock mildsteelbar,eachonehaving awidetopandtwolowerbars,

thebarsbeingseparatedby fourspacersoneachend.The pro leofthetaperedslidebars wasmachinedtoshapeinthe verticalmill.Theslidebars andthecrossheadsareshown in photo45,onesetbolted looselyinplaceonthesupport bracket.

Thetwopiecesofthe crossheadwerethenmounted inasimpleplatejigtoalignthe

‘tee’andacollarwasplaced inthethroattomaintainthe positionofthe‘tee’.Before silversolderingtheconnecting faceswerethoroughly cleanedandcoatedwith ux. Photograph46 shows thejig, uxandthesoldered crosshead. Photograph47 showsthepartiallycleaned upcrossheadsandtheradius rodsthatalsorequiretidyingup aftersoldering.Thevalvegear anditsoperatingleversonthe threecylinderSchoolsarequite complicatedandrequirealot ofefforttocreatesomething thatworksso,afterachat withEdatModelEngineers Laserthenecessaryinsideand outsidevalvegearliftingarms, eccentricrods,expansionlinks, reachrodsandgearframesets wereordered,togetherwiththe maincouplingandconnecting rods.Ihaveusedthislaser cuttingserviceseveraltimes andhavebeenpleasedwiththe qualityandthespeedyservice.

Itsavesasigni cantamountof timeandeffortonaproject.

Theconnectingrodblank wasmountedonasupporting mildsteelplatewithboltsinto tappedholestoenablethe pro letobereducedandonce completedthesamesetting wasusedtocutthe ute.This set-upisshownin photo48 and wasrepeatedforthesecond rod.Asimilarprocedurewas carriedoutonthecoupling rodsandthese,togetherwith theinsideconnectingrod,are shownin photo49.Theinside connectingrodwasamore

Crossheadswithteesectionsliders.

Solderingthetwopartsofthecrosshead.

Cuttingthefluteinacouplingrod.

Apartially nishedsetofrods.

Fittingtheslidebars.

Cleanedupcrossheadswithradiusrods.

complexbitofmachining becauseofthesplitbigend andthetaperedreductionon theshaft.Thereductionwas milledoneachsideofthe rodwithpackingbetweenthe rodandthesupportplateon the rstsidethathadbeen machined.Thesplitbigend/

bearinghousingwasmounted inthefourjawindependent chuckintheMyfordandbored tosuitthebronzebearing.The set-upisshownin photo50 Thecompletedinnerbigend/ connectingrodisshownin placeonthemaincrankaxlein photo51

Thethreecylindervalve gearisanythingbutclearin thedrawingsbutfaintheart neverwonfairladysoherewe proceedwiththetrunnionblocks toholdtheexpansionlinks.The trunnionsweremachinedfrom mildsteelstockinthevertical mill(photo52)andthethroats werecutoutusinganendmill intwostages;onetoholdthe expansionlink,theotherto provideclearanceforthefork endarmsoftheradiusrods. Theexpansionlinkswerewater cutbyModelEngineersLaser andonlyrequireddraw lingto bringthemtosize.Watercutting isusedtoavoidhardening thelinkswhichwouldhave happenediftheyhadbeen ame

cut. Photograph53 showsthe threetrunnions,afterthejaws hadbeen ledtoshape,andthe holesforthepivotpinsdrilled andtapped.Theoneinthe centrehastheadditionalarmfor theeccentriclinkthatoperates theinsidevalvegear.Thepivot pinsarelooselyinplaceand wouldbecentralisedlaterby holdingonepininthelathe chuckandtheotherpininthe jawsofatailstockdrillchuck, afterwhichthepinsweresupergluedinplace. Photograph54 showsthetwoouterexpansion linksinplacewiththesecured pinstrimmedtolength.

Continuingwiththevalve gear,thecombinationlevers werepro ledintheverticalmill,

Boringthebigendfortheinsideconnectingrod.

Machiningthetrunnionblocksfortheexpansionlinks.

Asetoftrunnionblocks.

Expansionlinks ttedtothetrunnions.

Insideconnectingrodandcrankaxle.

holdingthemonthemounting jigasshownin photo55 Similarly,theliftingandunion linksweremachinedtosize andtogetherwiththeweigh barortopreversingshaft(as itisknownontheSchools)are shownin photo56

Themaincomponentsofthe

insideandoutsidevalvegear areshownin photo57.Using theMyfordhasbecomemy rstchoicewhenformingthe forkendsofthevariouslinks andlevers.Usingathinslit sawataslowspeedprovidesa cleancutthatcanbeadjusted tosuitthewidthofthejaws.

Theinsidevalvegear wasmountedonthepump bracketcastingwhichhad twobrackets ttedtosuit thetrunnionblock(photo59)

whilsttheoutsidevalvegear wasmountedingearframes fabricatedfrommildsteel sheetandrivetedtogether (photo60).Thefrontpartof thegearframeswasusedto supportthebearingblocks forthereversinggeartop weighshaft.Theareaaround thevalvegear,especiallythe insideset,isverycrampedand

Photograph58 showsthe set-upintheMyfordforcutting theforksusingtheclamping screwsinthequick-change toolposttoholdtheworkpiece securely.

Pro lingacombinationlever.

Asetofthreeliftinglinks.

Mountingfortheinsidevalvegear.

Valvegearmountingsinplace.

Thetopreversingshaft.

Formingtheforkintheeccentricrod.

complicatedandneededatrial installationjusttoseeifthe itemscouldbeplacedinthe correctposition. Photograph 61 showstheinsidevalve gearfromabovethemain frames.Boltshavebeenused tolooselyholdeverythingin placeandtheslidebarshave beentemporarilyaddedto theoutsidesupportbrackets. Beforethetopreversingshaft couldbe ttedthetrunnions thatsupportedithadtobe

madefrommildsteelstock andsilversolderedinto positiononthegearframes. Oncethiswasaccomplished therunningboardscouldbe foldedfromsheetgalvanised steelandthecut-outsfor thewheels/splasherswere hacksawedoutand ledto shape.

Theportsintherunning boardsfortheliftingarms werecutoutusingthevertical mill. Photograph62 showsthe machinedportsandthelower trunnionblocks.Withthesheet metalworkwellunderway thesplasherswerethenext tobemadefromgalvanised steel.Thetopswererolledin my12inchrollstosuitthe segmentsand photo63 shows thesecomponentspriorto beingsoldered. Photograph64 showsthesplashersloosely inpositionontherunning

boardsandthemainframes and photo65 showsthemore complicatedsplashersthat t overthedrivingwheelsonthe insideofthecab.Thesetook quiteabitoftrialanderror, evenafterusingcardboard patternstogettheshapes correct.Itisevidentinphoto 65thatthereversingstand, reachrod(whichwassupplied byModelEngineersLaser) andthecabspectacleplateall

contributedtothedetail tting thatwasrequiredtoobtaina satisfactory t.

lTobecontinued.

NEXTTIME

Wewillcatchupagainwith thesheetmetalworkinpart4 ofthisseries.

Valvegearmountingsinplace.

Splashersplacedinposition.

Rearsplashers.

Platforms ttedwithcut-outsforthereversingshaftbearings.

Splashercomponents.

ASimpleDevicefor Producinga PlankEffect

Thisisasimple,quick devicethatImadeoutof oddsandendsforjust onejob–butIsoonrealised thatithadotheruses.

Iwashelpingafriendto buildamodelboat.When itcametomakingthedeck plankingwesawthatwood scoredwithascriberor

Stanleyknifelookedlikewood thathadbeenscoredwitha scriberorknife.Ontopofthat, whateveryouareusingfora straightedgeisjustboundto sliporthescriberwillfollow thewoodgrainresulting ina‘plank’linethatgoes everywhereexceptwhereyou wantittogo!

Thisisasimpleplane runningbetween xedguides whichholdsthewoodand guaranteesastraightline ofexactlythesamedepth everytime–aperfectplank (photo1).

Makingthebase andguides

Thisunitwasmadefrom whatevercametohand–so sizesetc.arenotimportant.

Thebaseisapieceofwood –inmycaseIusedsome fromtheframeofadivan bedthatI’dbrokenup.My baseis12incheslong,by 5½ incheswideby ¾ inch thick.Trytogetassmooth and atapieceaspossible ( g1).

Theguidesaretwo12inch lengthsofbrightsteel ⅝ inch square( g2).

Knurlednuts Tool Planeblock 2BAlockingscrew 0BA

Guiderails 5/8”sq.x12”

Woodbase

Theplankinggadget.

Outlineoftheplankinggadget. Plankinggadgetdrawing.

Planeblock Baseassembly

Fig2

Fig1

Dave Woolven ndsa betterwayofscoring planking.

Theplaneblockisapiece ofbrightsteel1½ incheslong by1inchwidex ¾ inchthick ( g3 and photo2).

Thetoolisapieceof ¼ inch roundtoolsteel( g4).

Drill0BAtappingsizeholes throughtheendsoftheguides, about ½ inchfromtheends.

Clampa12inchlengthof1 x ¾ inch(fromwhichyouwill maketheplaneblock)between thetwoguiderails( g5).Thisis atemporarymeasuretoensure thatthetworailsstayparallel andsetatthecorrectdistance apartfortheplaneblock.Put thisonthebaseandpopa0BA tappingdrillthroughtheholes intherailendsandthrough thebase.Taptheholesinthe wood0BA(horrorofhorrors –tappingholesinwood!–it’s justtostopthescrewsfrom turningordroppingout).Open

Slackenoffscrew,putfeelerunderblock, pushdowntool&tightenlockingscrew

Relievetopreventtool fromchoking

HSSroundtoolbit groundtoshape

Fig3

Fig4

Settingthescribingtool.

Scribingblockdetails.

Thescribingblock.

uptheholesintheguiderailsto 0BAclearance.Screwfour0BA screwsupthroughthewood, removeclampsanddropthe guiderailson.Makefourknurled nutsforthesescrews(photo3).

Makingtheplaneblock

Cutoff1¾ inchesfromthe 1x ¾ inchbarandcleanup theends.Drillandreamthe centreofthetopface.Drilland tap2BAononeendfora2BA clampingscrew.Youwillneed torelievetheundersideofthe blockaroundthereamedhole. Ifoundthatwithoutthisrelief the‘throat’ofthetoolquickly becamechokedandrefused tocut.Iusedanendmillto makethisreliefbutatouch withahalf-inchdrillshould workjustaswell.Grindthetool andclampwiththepointto whateverdepthyouwant.

Usingtheunit

Slackenthefourknurlednuts, lifttheguiderails,slipthewood under(cutwiththegrain), tightenthenuts,slidetheplane blockalongbetweentherails –one‘plank’made.Slacken thenuts,movethewoodover, cutthenextplank.Depending onhowyougrindthetool pointyoucanmake‘V’groves, squareones,shiplapetc.-the choiceisyours.Theunitis excellentonplasticardaswell forwagonsides,buildings, walkways,locomotivecab oorsetc.(photo4).

Ialsofounditusefulfor scoringbrasssheettogivea clean,straightandsharpbend. If–forinstance–youwant toscore0.015inchbrass,set thecuttingtoolto0.005inch ( g3),liftthetoolpointjuston tothestartofthemetalsheet, pressdownhardandscorethe line.Thebrasswillfoldexactly ontheline-idealformaking smalltanksetc.

Ihadalltheabovematerialsto handbutinsteadofmetalguide railsandmetalplaneblockyou coulduseDIYstorehardwood, thetoolfromasuitablenail,a woodscrewforthetoolclamping screw,thescrewsfortheguide railsfromcoachboltsandwing nutsfromtheDIYmerchant.

Guiderailposts.

Plankingforawagon.

Positioningtheguiderails.

‘G’clampsor toolmakersclamps

Samematerialfromwhich planeblockwillbemade

Guiderail

AnEngineer’sDayOut

Sheffield’sKelhamIsland Museum andtheKenHawley Collection

PART2

TheKenHawleycollection andShef eldmadetools

Continuedfromp.253

M.E.4723August11

KenHawley(1927-2014)wasa remarkablecollector.Heowned atoolshopinShef eldbut besidessellingtoolshewas fascinatedbytheirmakingand makers.Shef eldthenmade anincrediblevarietyranging fromgardentools(photo23) tosurgicalinstruments (photo24) andfrombuilder’s toolstoprecisionmeasuring equipment.Sadly,muchof theindustrywasindecline. Manysmallermanufacturers wereclosingdownwithothers sendingproductionabroad. Herecordedhowcraftsmen likethe‘LittleMesters’would makespecialisedtoolsoreven partsoftoolslikehandles, sometimes lmingoperations. Hebuiltavastcollection oftoolsoccupyingseveral garagesandhishome.Almost equallyimportantlyhecollected manufacturers’cataloguesand salesinformation,nowavital record,alongwithengineering drawingsandpatent information.Documentationis avitalpartofagoodmuseum collection.

Thereissomuchinthe collectionthatonearticle cannotdoitjustice.“Our missionistopreserve thecollectionandthe knowledgebehindit”says KeithCrawshaw,KenHawley Trustchairman.Amultiskilledteamofaroundthirty activevolunteershelpswith cataloguing,conservationand meetingthepublic.Museum staffandvolunteershave workedtocollectmanyof thestoriesofpeoplewho workedinthecity’sindustries. Sometimeswholefamilies wereinonetradeandfamily historiescanbetraced.

Specialdisplaysandgiant tools

Manufacturerslikedtoshow offtheirwares.So,they marketedtheirproductsin carefullyarrangeddisplays usedatexhibitions,trade fairsandinshops(photo25). Displayswereoftenpreserved andnowmakeanattractive featureofthecollection (photo26). Oftenwithseveral dozenspecialisttypesof onetoolinthesamecase, theyshowjusthowvaried Shef eld’soutputwas.

Otherslikedtomakegiant versionsoftheirtools.Some aredisplayed,spectacular ifuseless,buthelpedsell products(photo27).

Measuringtools

Shef eldmademorethan woodandmetalworking tools.Shef eldcompanies

JamesChesterman,Moore andWrightandShardlow dominatedproduction, specialisinginmeasuring instrumentsrangingfrom carpenters’twofootfolding rulestolargemicrometers

Roger Backhouse returns toKelhamIslandto learnaboutShef eld’s industrialhistory.

Howtomakeagardenfork-amore complexprocessthanmostgardeners realise.

Justthetooltomakeyoushudder.An amputationsaw,oneofmanysurgical instrumentsmadeinShef eld.

Displaycasefeaturingtherangeof BedfordLionhammers.

Prestocuttingtoolsindisplaycase.