Show I 1 handicraft FOR BOYS AND GIRLS L br ks A NEELY EE Y HA HALL L und and d 1 DOROTHY 0 PERKINS PERKIN S 6 ss 6 NV by A neely hall MODEL AEROPLANE propellers AND A MOTOR WINDER A pair of propellers pro must be of identical size but opposites and lefthand left hand that is the upper end of the right hand band propeller must ba shaped to turn to the right and that of the left lefthand hand propeller to turn to the left when viewing the mounted pair from the rear of the mod model el after preparing one propeller in the manner described below make the I 1 A M A jill C 16 A C A j A at second one with blades turned in the opposite direction figures I 1 to 7 show the seven steps in preparing a propeller let the figure numbers also represent the step numbers first of all prepare a propeller blank of the dimensions shown in step 1 this block should be of straight grained white pine and be ba planed up straight raight sit and true on all sides draw a line around the tour four faces of the block at the exact center of its length then on faces 0 and D 13 00 a lay off a distance of one half inch on the centerline center line measuring from the edge of face D B to provide for the thickness of the propeller hub stop step 2 and from the point representing the end of this measurement draw diagonal lines to the upper left and upper right hand corners step 2 then with a saw cut away the portions above these lines as shown in stop step 3 mark out the one halt hal inch fin hub upon faces A and B of the block ind bore a small hole bole through the center tor for the propeller shaft to ill run through step 3 then draw diagonal on al lines from the ends of the hub centerline center line to all tour four corners step 4 and sav away the wood above and below there lines estep step 6 5 step G consists in laying out the form of the propeller blade upon all four sides and ends of the block and step 7 Is the final cutting and shaping ig of the blades after finishing the cutting place the propeller at its center upon the edge of your knife and if it does not balance perfectly cut away enough of the heavy end until 4 1 does smooth up the surfaces with emery paper then phellon them tid thi rubber strand motors are wound 1000 turns or more tor for a flight the pair must be wound an equal cumbe numbe number of times to simplify this winding boys boya take a dover e egg beater fig 14 and cut oft off the ends of the wire loops and the central centra pivot wires on which the loops turn then they bend the cutoff cut off ends of the loops into hooks books punch the loop ends for the pivot wire vitro ends to stick through fig 16 15 and rivet these to keep the hooks in position ligure figure 16 shows how bow the bow ends of the rubber strand motors are removed from the framework and lipped on to the winder hooks tor for vinding ST A HOMEMADE RUBBER STAMPS first of all you will need some flat pieces of rubber there are ara many sources from which to get these mothers discarded clothe arInger has haa a pair of 0 rollers that can be stripped of their rubber coverings or you can use pieces of it a worn out hol bag a piece of 0 a bicycle or motorcycle tire or the inner tube ot of an automobile to tiro tire it if you cant find any such ouch pieces ot of rubber at home probably some friend can call supply you in addition to the rubber you wv will need thread spools an on which to mount mount the rubber figs 1 to 5 show tho the steps in preparing par ing a letter A stamp the hole in each spool must bo be plugged with a wooden peg fig 1 and the peg cut off even with both ends of the spool so a letter may be mounted upon each cut a square of rubber of the size of the letter you wish to make ako and glue it upon the spool end then a with a ruler and pencil draw the letter upon the rubber fig 2 or it you yon have prints of largo type cut out PEC A aj a letter rind and paste it upon the rubber paste it upside down because type must read backwards to print correctly see bee mg fig 7 when the piece of rubber Is glued fast to the spool end and the letter drawn or pasted upon it carve out the letter with your knife cutting carefully along the outlines of the letter and removing the pieces of rubber not wanted figs 3 and 4 make proof of the letter by printing it upon a piece of paper and then trim any places that show up rough to complete the stamp cut off the edge of the spool end just below the letter fig 5 so by placing the cutoff cut off edge against C B A D 1111 t 0 o 13 the edge of a ruler fig 6 it will be possible to pritim the letter exactly straight and also get the letters of a word in a straight line after you have a complete alphabet of largo large single letter stamps try your hand at preparing a stamp with a word or name upon it like that shown in fig 7 picture stamps are ara no more dim cult to make than letter stamps but require larger pieces of rubber figs 8 and 9 show two possibilities for picture making with the rubber stamp parts of a mule and r pigs digs 12 and 13 two pictures made with the rubber stamp parts of i little girl diagrams of the six stamps required for the mule picture are given 0 X C A C in fig for the body D tor for the lock lecic and and head bead 0 the ears D the thighs el the hock bock and hoot hoof of the legs and F the tall for a email set of stamps you may cut out the patterns tor for a larger picture you may enlarge them fig 11 shows how bow to make holders by tacking pieces of cigar box wood to spool ends diagrams of the stamps for the little girl pictures are shown in fig 14 A for the body B tor for mhd th head bead 0 the upper arms D the tha forearms IC the legs and F T the hat bat |