Show BIG DIG IMPORTANCE OF TIRE FLAP Correctly Designed It WillI Will Protect Inner Tube 1 I I From Injury There I Is probably no part of ot a n tire the as little understood or appreciated ap up- as the lap flap an and yet jet cl Its tin tin- port ance cun can be he hardly overestimated The u uw use e of ot a correctly designed flap properly applied In Ih the casing will In In- sure Hire full tull and satisfactory service from the this tube while nn an Incorrectly tIe lit Ignell flap Hup lI or Improper application of ot the correct flap Is certain to result In III damage to tube tubes casings und and tillous Function of Flap The fun function of ot a lap flap I N Is to protect the Inner tube lithe from Injury by lIy t the hI Iud head toes tars n unit nil by hy Ih the rim This It 11 dues does by hy forming a continuation of ot the smooth Inner surface of ot the hue casing against which the Inner tube tulle Inflates from a n point palm above e the bead down across lire tire rim and up UI to a corresponding corre curre height on oh tin the opposite head In tires for tur or passenger cars cors the tint flap Is supplied separately since Inre It has huts boon been found that cemented ceo ce ce- ce In III Yaps Haps such as 0 are ure furnished In III motorcycle tires Ures Bonn work loose loos on III account of ot the lie heat generated by hy these larger tires Iris unit und become dislocated dislo c to such Bitch an In extent ns us to cau cause e tube tulie pinching pinching- The floating imps Hap supplied In 10 most makes of ot tires of typo Ope represent the highest development of ot this product They lire arc made mode of ot I several plies piles of ot rubberized rubber rubber- zed fabric and und In some Rome makes 18 are covered on the tube side with u a layer lar of canton flannel which Is turned back backover backover over each edge anti permanently vulcanized vulcanized to the main lin body of the flap The flaps are vulcanized Into luto the concave con con- cave care shape they assume wll when n mounted In the casing and nt are ore provided with witha a around a around round bole hole In one end nd and a n slot In Inthe Inthe Inthe the other to allow for proper length adjustment Their edges are featured len fen and cannot chafe chote the tube Flap Flip Properly Fitted To fit properly the flap must reach to a point on the Inside of the casing approximately even cnn with the tho top lIp of the rim flanges It If the flap Is so wide that the edges conic come above this point the flap edges have been known to tu cut Into the casing cosing the tube following follow tollow- Lug ing resulting In a n ruined tire On the theother theother other hand band If the tine flap Is U too narrow there Is great danger of one or both bothof bothof of these edges being folded under when heu the tire the Is mounted on tine the rim rita This Tills will quickly lead to tube pinching In applying the hap flap the end having tiny hav ing the tho round hole hule must trust In every instance In In- stance bo be placed over oer the valve first and the till slotted end last thus permit permit- Ing the flap to adjust Itself ly failure to observe this tints procedure Is almost certain to result in damage to the tube |