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  2. NEW IDEAS IN SCIENCE AND INVENTION.

    THE showcard writer or letterer will find an ordinary comb a great help in securing the proper width of a letter quickly. ... [ILLUSTRATED]

    Article : 96 words
  3. MAMMOTH BRITISH GAS ENGINES.

    ALTHOUGH the first gas engines were built in Great Britain, that country did not, owing mainly to concentration on the steam turbine, devote much attention to very large ...

    Article : 122 words
  4. USEFUL LOGGING DEVICE.

    THE drawing shows a simple device for booking and unhooking open-face chokers. In use, the choker is hooked around the log, which is then drawn in to ... [ILLUSTRATED]

    Article : 161 words
  5. HOW WATCHES ARE CLEANED.

    ONE of the large watch factories has a standing order with a bakery for forty loaves of bread to be delivered each day. What for? To feed its workers? Not at all. It is the ...

    Article : 84 words
  6. PLASTER OF PARIS STOPS LEAKS IN WATER PIPES.

    THE usual method of stopping small leaks in a water pipe is to close up the hole by hammering its edges together, but such a repair is apt to give way in time and the leak ...

    Article : 172 words
  7. SOFTEN NOISE BY USING RUBBER STAIR-TREADS.

    OLD inner tubes may be utilised to advantage for making wooden stairs practically noiseless. The tubes are split open their ... [ILLUSTRATED]

    Article : 77 words
  8. ELECTRIC LIGHTS FROM WATER SYSTEM.

    WHEN the faucet is turned on, water flows through the pipes. If the moving water is allowed to pass through a small water-motor or turbine, a certain amount of power will be ...

    Article : 108 words
  9. STAINLESS HANDS FOR THE PHOTOGRAPHER.

    IT is apparently an easy matter, the amateur would say, for him to bleach out his fingers after each operation of developing, by sticking them in hypo, or some other chemical. But ...

    Article : 301 words
  10. MAKING A LOCK MORE SECURE.

    THERE are many varieties of cheap door locks that can be opened with almost any kind of a key, but these can be arranged so that none but the ... [ILLUSTRATED]

    Article : 179 words
  11. SLOW DEVELOPING OF FILMS FOR AMATEURS.

    VERY good results can be obtained with cut films in plate-holders by the following slow developing method. Use a weak bath and hang the film ... [ILLUSTRATED]

    Article : 210 words
  12. IMITATING HARD WOODS.

    IT is worth knowing that soft woods, treated with oil stain finished over with two coats of varnish or varnish and wax, can be made to resemble closely light or dark oak, cherry. ...

    Article : 58 words
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