Show 1 t tI I LOCK NUTS AND WASHERS ARE I IMPORTANT PART OF AUTO Safety Depends On Device to K Keep ep Bolts and andI I Burrs From Working Loose Tighten Up New Car Inspect Wheels heels and andI I I Pins ins Closely I i j The number of ot lock locks which Rr ar ir iro I to fo o b ba found on the modern auto automobile I mobile cem to t bo be Increasing a athe th the tho years year gO so b by and the total vat v 1 Iu I of ot cars curs and accessories cc stolen stole runs rune up Into even larger er figures aye ays C H Brokaw Brokaw of ot the Neu o NewYork w I York Y M I C A school a hool 1 There Th i- i are ar locks on the steering I wheel the th the th trans trans- transmission transmission mission rans-mission mission the th doors of or clo cd cara the trunks carried on the tho th rear and the tire J i iTO TO LOCK NUTS 4 While Vb lie th these might mil be b consid considered ered ered a ae locking devices delce they are r not exactly what the th automotive engineer means meane when he tine this term rm He lie thore various v rou de- de dev de devices v vices ee which keethe keep the the different I arts parte of ot the th ea c place and n lY so so that Important tnt tant bolls bette bolt Jat t be be b loosened by It It le 1 the Ideal t every ever manu manu- manufActurer manu t to have hav nut set get u up snugly and ind properly locked laplace la h laplace place It should be the Ideal of or i every cery drIver ot of a car to see to It that th t they stay ay In this cOndition No motorist t cares carlo to 10 have hav hll hi car c r BO co conspIcuously noisy from from- numerous r rattles that everybody can recognize him when he is I drivIng by the sundry sounds sound Me hI mAchIne makr makee INSPECT r Vs NEW CAn There I Is just Jutt on one possible po ad- ad antage thAt attaches that th t- t tt ch s Itself Ile lt to the thc clatterIng namely that no thief would ever er consider stealing It The noise nolle of ot ouch uch uch a car would readily be recognIzed by the tb local pollee However the th thief vI bration may my steal teal many jinny man of ot the th parts The Th new owner of ot a n car after aCler driving driving- It tt for tr a few days dats should hould go so over o It carefully hImself I Ito to check up up lock locking Ins Ins- devices I or take lake tak It to a service station for this purpose When hen a 1 person buys a n ne new au- au automobile au au he h ought ht not to take tak too loo much for tor gr granted ranted as a to the th snug snug- snugness ness neo ct t nut nuts and he h ought not to condemn the th maker of or the car too It If he be finds find a few of ot them becomIng loose after atler a ft few hun hun- hundred hundred dred miles mile run This Is apt to happen In the tho best beet car cars care It should be saId that the manufacturers t 1 have e gone iron to great treat lengths length to equIp parts arts as a will Insure ln ur the th greatest possible lately to automobile own own- owners owners owner ers er OF COTTER COTTEn Many Mony parts paris part of a car are made fut fast t through the use u of ot bolts bolt with the threads thread on them and nuts that turn on the th thread and make mak the parts tight In the thi pa t more mor than at prevent present It was Wall wa the practice to toI I have the th bolts bolt long lone enough h so 80 o that two nuts could be be c pu put on One was a Jammed against another In order to lock a n way that It would be b Impossible for them to 10 come conle me oft oct Then to make mak doubly sure ure the tho th nuts nut would not falloff fait oft ahole a ahole ah hole l was drilled bolt anda and anda anda a steel pin called a cotter colter was Inserted Thus Thu Thus even If the nut nuts become loosened ibe th cotter colter pin pini would prevent them from fr m falling off ft the bolt LOCK V WASH RS On some ome om ears can car Instead of using two nu nut a single lIngle nut with notches In the th head of ot It called a slated nut nut was wa employed When this nut was wa In place a bole hoi was Wall w drilled through the bolt and the thi cotter pin was wa inserted In a pair of notches In the nut so eo o that It could not Dot ot back off and become and become ned loosened However Howe lock washers are ar now used more often otten in place ot of o locknuts lock nuts The Th lock washer Is I made mad made of hardened steel teel with two sharp harp projections caused by bythe bythe the splitting on the washer wa When the nut is I turned down on such uch a washer the sharp tharp edges dIg die Into the nut and the part which I is being held Into place As A a result the nut is 1 I prevented from working loose These The washers are ar some om time I called split washers washer In other place places the th head bead of the bolt bott bottIs boltis Is drilled and a wire I Is passed p u through It and made mad fast fait In ouch a wa way that the th bolt cannot turn It HIt I ll is of ot extreme Importance that the wheels of a car be secure secure- securely ly ly Iy locked licked on Nobody wants want a wheel to leave leav his machIne machin when touring along a country road Each front wheel I 1 II usually secured by two nuts nut One On acts as a a lock nut and a cotter pin Is added to pre pre- prevent vent the th wheel from coming loose In case c the th nuts nuta should loosen up by any chance The Th rear wheels wheel which are I fastened r rigidly to 10 the lh Axle shaft I In all types except the hi full tul float float- ln lIng Ing sometimes employ a special lock washer and a single nut This I I lock washer le I constructed so that when It II Is placed over the end ot of the shaft 11 It cannot turn on the shaft sharl It has car cars which may be bent against ac the th flat surface ot of t the th nut to 10 prevent turnIng on the shaft If the h rear axle Is the full tull floating tp type the wheel wheels are held on by two nuts the th condition beIng the same as al a the th front wheels WRIST WHIST PIX PIN LOCK U CK In the III engIne the wrist pIn which travels up and down the cylinder at the rate rato rat of about 2000 times a minute Is b likely to work loose If this happens harpen It ma may come In contact with the cylinder clInder wall WAil Since the wrist writt pin Is IA made of hard steel and the th cylinder v wallIs all allIs Is composed of or soft cast cut Iron the cylinder elInder may be scored cored As Aa A a re- re result r suit sult grooves may be cut In It so soth th that t there Is b no possibility of ot keep keep- keepIng keeping keep Inc Ing good rood compression In Iq the cylinder cylinder cylinder der Locking devices de like Ilk most oth- oth other other oth other er parts of an automobile while reliable In the th main are ar not In- In infallible In fallible and should 1 be given Riven the once over o once In a while to In- In Insure insure In-curc In I sure the tho best motoring result results |