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Show I HANDICRAFT FOR BOYS AND GIRLS A. NEELY HALL and DOROTHY PERKINS WWAVWAVJ'.,.V.,.VA,.V.V.WWAV.WIVAVWW (Copyright, by A. iseely llaiU (X WIRELESS TELEGRAPH RECEIVING RECEIV-ING SET PART 2. The first thing to consider when setting set-ting up a "wireless" receiving set Is the aerial. This should be supported at least 30 feet above the ground, at one end, and should be DO feet or more In length. Fig. 1 shows an arrangement for an aerial of six strands, and Fig. 2 shows how the end connections are made ft-5 VB ftB ft-B ftB B-fl i K i 1 i i Any wire but steel or iron, not smaller than No. 16, either bare or insulated may be used for the strands, and the end spreaders (A, Fig. 2) may be any light, strong poles 5 feet long. Insulators In-sulators must be set In between the spreaders and the ends of the wire strands (B, Fig. 2), and the strands must be fastened 12 inches apart. Ordinary Or-dinary porcelain cleats (Fig. 3) make good insulators. Tie the supporting ropes C of the aerial (Fig. 2) to screw-eyes screw-eyes placed at the ends of the spread ers, and then fasten the rope stays D to them, and to the spreaders, so the spreaders will not become bowed. Fig. 5 shows a good pair of telephone receivers, with head-band. If you can riot alTord a pair, you can get along t T - Snt I I ,T CON DENSER RECEIVERS' JLrSILICON DETECTOR f-t-,-TUNING-COIL Q QEpUNO GROOM 'with a single receiver. Fig. 6 show the kind of switch to buy a single .pole-double-throw switch. This switcl must be placed outside of the window ,to provide for disconnecting the aerla jwhen the receiving set is not in opera rtion, as a precaution against lightning :Fig. 4 shows the wiring diagram. On pwire from the switch must be grounc led. also, as shown, outdoors. The r Iceiving set must be grounded, and thi '.grounding can be taken care of b connectirg a wire to a radiator o plumbing pipe. With the receiving tostrument iproperly prepared and pet up, and ood aerial with Its lead-in wire pe: 'fectly insulated, you should be able t receive from commercial stations at distance of at least a hundred mile: and from all amateur stations in yot vicinity. The two telegraph codes Morse an Continental must be learned, becaus both are employed, though the Mors ' CODES MORSE CONTINENT! code is the one in general use. T two are shown in the diagram of Fi 7. You will notice that In the ca of many characters the arrangemen are similar. The dots of the cod will be heard through the receivers ehort buzzes, the dashes as loi buzzes. As there is great difteren In the equipment of "wireless" si tlons. your instruments must "tuned" b3foro you can receive a mi sage, by slowly sliding the sliders the tuning-coil back and forth, and c cnslonally adjusting the wire resti upon the piece of silicon of the deti ior. intil the buzzes are heard. A WASTE-BASKET, SHIRTWAIST BOX, AND SHOE BLACKING CASE, IN CRETONNE. On account of the simplicity of the construction of cretonne covered furniture, fur-niture, there are all sorts of things which a girl can make for her own room, and for mother's. The waste-basket in Fig. 1 is made out of a soap box. Remove one end of the box, as shown In Fig. 2, for the open top of the basket, and nail the cover board in place to enclose the side (Fig. 3). The next step is to cut several -strips about an inch and one-half wide, and nail them around the top edges as a finishing band. Tack the outside cretonne on first, then the inside lining. Lap the cretonne cre-tonne over the top edge, and cut it so that about an inch will turn down all i around. Then conceal the edge of the i cretonne by lapping the lining over it. The lining may be of a plain colored , cambric. The shirtwaist box shown in Fig. 4 , is made of a box of the right height to slide underneath a bed, and a pair ol handles are screwed to each of the two long sides, so It may be pulled out from either side of the bed. i i- Because the shirtwaist box must b ;. shallow, it is well to make it long e Having procured the box, it is onl: 1. necessary to fasten a strip two inche 3- wide along the center of the open toi s from end to end, for the hinge-strip i y (Fig. 5), and hinge a board each aid r ot it for the covers (B, Fig. 6). Tha completes the carpentry. It will b 3 easiest to cover the box before th a hinge-strip and covers have been pu r. on, and to tack the cretonne on th 0 hinge-strip and covers before fastei a ing them in place. The handles an g the castors go on last. lr Have you a shoe blacking cas in your room? Very few girls do ow , one. yet it is an article of great in te le " BPA . a portance to the girl who is particuli ; about keeping her shoes tidy. Fig. ' shows a practical little blacking cas By making the top removable, the 1 side of the case may be used as a r ceptacle for cans and bottles of polls brushes, and rags; and by paddii ' the under side and covering it wi tie cretonne, the top may be inverted a: ig er use. and the blacking case thi se converted into the attractive footsto Is shown in Fig. 8. es Fig. 9 shows how four short le, as should be nailed to the corners of tig square soap box, with the tops pi ce jecting just enough to allow for tl ta- thickness of the cover, and Fig. be shows how the cover boards shou ?s- be fastened together with the cro of strips A, and hc-v a triangular blO' ic- B should bo nailed to it for a rest ng push the shoe against. 2C- In covering the blacking case, It best to omit the inside lining. |
