OCR Text |
Show II JPOPELAR I I I SCIENCE An Engllih Carpet Cleaner. H Tears ago the .housekeeper waa con- tut to sweep the carpet with a broom, but with the invention of the carpet Jweeper It wag dlcovered that hand- ling too broom was unhealthy, both for the woman who wielded It and (or the unlucky individual who happenod H to be WTTOln reach when her lro was rised. Soon It was found that tho , iiandle of tho carpot sweeper could be inscrowcd, and bo man In his despair las cast about for another device H Electricity Rotates the Brushes. H -which would clean the carpets with- H out endangering his health. Honco the H electric sweeper. This machine comes H from England, and seems to be os- l peclally designed for uso In largo halls Hf and public rooms having such great H -floor spaco as to make cleaning them H -even with the hand operated sweepers a laborious task. In this apparatus H a. small motor Is mounted on tho I frame, with belting connecting tho I shafting with two rotary brushes, I -which are rapidly rovolved as the H sweoper Is drawn over tho floor. To effectually prevent tho spread of dust I n auxiliary framo surrounds tho body H of the Bweepcr at Its lower edge, with I flexlblo edgo pleco bearing against H the carpet on all sides. I The Inventor of this apparatus is I Frank J. Farrell, of London, England. I A Wonderful Rule. I H. M. Jones, an architect of, this I -eky, has produced a remarkable In- I -ventlon in tho shape of a mechanic's I pocket measuring rulo, on which he I lias been studying for several years. He has taken a cheap, common rule, and, without Increasing or diminishing I Its original size, wolght, appearance or I -ariglnal usefulness or convenience, I naa produced a rule that will glvo the I length and levels of the ends of all I binds of braces or rafters. I It will square off a board or square I and lay out a collar, make- an octagon I -or square mitre. It will tell tho height I ot any building or elevation, the dopth I of any valley or chasm, tho width of I any street or Btream, or both. An- I -sbor a boat In the middle of a river, I and the rule will tell how far It Is i Iron the shore; a roofer can tell the flk, dimensions of any roof while standing W' -a the ground; It will measure) any- H thine in sight, whether in reach or H mot; it will give the length of any H straight or slanting line, It solves all H the problems In geometry and trlgon- H ometr' the mechanic Is ever called H upon to solve. The Improvement cau H b attachod to all kinds of rules In H use, whether of tho French or English H systems, nnd to a now rulo while H making. One cent per rule will pay H the cost of the Improvements; to a H rule already made It will cost two H cents a rule. Meridian Jqurnal. A New Percolating Coffee Pot. H Wlille tho cofteo pot which makes tho H fecvorago by percolating hot water I through the finely ground coffee Is I finding great favor, tlioro Is boiuo com-I com-I plaint that otic Infusion docs not make H the drink strong enough, necessitating H tho pouring of the coffee from tho I pot and passing it again through tho H Pumps Water Over the Ground H Coffee. H (rounds. Tho occompany Illustration H shows a cofteo pot recently doslgnod H by a Massachusetts Inventor, with the M idea of removing tho nocosslty for H yourlns tho liquid from the pot pro- M paratory to passing It through the H percolator tho second time. Instead M of pouring the hot wator dliectly on M the ground coffee In tho porcolator, M tho bottom portion of the pot Is filled fl with tho required quantity of walor H previous to Inserting tho porcolator. 1 In tho center of tho latter and oxtend- M lug down to tho bottom of tho pot fl will bo seon a cylinder containing a H piston, and by raising nnd lowering H this piston tho wnter Is pumped from 1 the pot to the top of tho cyllndor, fall- H lng thonco on tho rolTeo and perco- H latlng through Into tlio lower chamber M again. When tho liquid has gnlnod B tho dcslrod strength tho porcolator JH . and pump can be romovod and the Hl.JU cloar cofteo Is then rendy for sorving. H Pressure Test of Small Tubes. H An oxporlmcnt tried by an English H naval onglneor to test tho strength of H the bmall tubes In wator tubo boilers H showod that they resisted tho pressure far beyond .any that they could be subjected sub-jected to in actual use. A copper tubo of ono inch outside diameter was plugged plug-ged on both ends awl a gauge fastened on. It was ,aetjw. a blacksmith's forge; and stearoJStnMilOO pounds per -aquare inch, SfJrYh bu-'1- Tn'8 tube was 0.07 lncfiucK, th tensllo strength, of the niofai being only six and a half ton per square inch, A Btoelnbo.of ont and a quarter laches dlamotor colled' Into a circle oi,tx inches dlametei- and 0.704 Inch ffilck stood 478S poumis por square Inclv before be-fore bursting Through defects In Iho material thpy sometimes give way nt 30fl pouudrf'per squaro Inch. Iron Ago. New Safety Lamp. At a rocpiit meeting of the Academy of Sciences of Vienna, Prof. Mollsch of Prague communlcnted a paper upon phosphorescent bacteria. Ho has been nblo to photograph tho colonics of a phosproresccnt micrococcus by means of Its own light. Ily Inoculating large glass Masks of half-litre capacity containing con-taining a sultablo culture medium with tho organisms, a "bacterial lamp" Is obtained with which It Is quite possible pos-sible for nn observer at a distance of ono or two metres to read a thor-momoter thor-momoter or to see tho tlmo of a watch. On a dark night tho "bacterial lamp" Is vlslblo at a distance of more than sixty paces. Improved Stock Waterer. No matter how puro a source of supply sup-ply may be at hand for watering stock, If It Is pumped Into an open trough and left exposed for any length of time it soon becomes polluted and unfit un-fit for tho animals to drink. This will not bo tho case, acccording to tho inventor, If tho stock watering apparatus ap-paratus hero shown Is put Into use. If pure water Is furnished to the tank or barrel to which this fountain is attached, It Is claimed that there Is no way by which tho animal that Is drinking can mako it foul. The waterer consists of a double drinking Animals Cannot Befoul the 8upply. bowl, made of cast Iron, which is attached at-tached to tho outsldo of a tank or barrel. On tho inside Is another chamber. cham-ber. Inclosed In which Is a brass float and lover, controlling tho flow of water to the outsldo bowl. The fountain is automatic In Its action, as tho float rises with tho water in the bowl and cuts off the supply when tho proper height has been reached. As the valvo Is always closed, except when wator Is flowing from tho tank to the drinking drink-ing bowl, there Is no opportunity for foregn matter to find Its way to tho interior of tho storage resorvolr. Locomotive Fuel. Inventions, new uses and adaptations aro the results of tho wants and necessities neces-sities of tho tlmo. Tho adoption of fuol oil on the locomotives employed on tho railroads traversing tho Interior volleys of some sections of tho West has reinocd one of the chief sources of clangor from flro In tho ripening grain Holds. Locomotives using It do not emit any sparks or eject red-hot clndors to lgnlto the withered grasB along tho right of way or tho parched grain In tho neighboring Holds. Henco-forth Henco-forth grain field fires will probably pass out of the futuro history of tho wheat-growing valleys; the railroad claim agont's occupation will practically practi-cally disappear, a big leak In tho corporation's cor-poration's treasury will drop to correspond corre-spond with the diminished risk tho use of fuel oil on locomotives has caused. Wo believe that fuel oils Is destined to play no small part In tho economics of the future. Epworth Herald. Waste Available for Fuel. Commissioner John McGaw Woodbury, Wood-bury, of the Street Cloanlng Department, Depart-ment, Now York City, has received the reports of experts as to the experiments experi-ments mado In the use of street and storo sweepings as fuel. He has calculated cal-culated that there would be 800,000 cubic yards a year which could be utilized by tho new process in Ue making of briquettes for fuol. With this 'ubl It was estimated that power enoi gh to light 7,272 lamps of 2,000 caudle power each for a year could be obtained. Commissioner Woodbury will sell tho fuel, and It is announced that some arrangement for tho use of machinery of tho city to generate and soli power for tho pumping stations ol the water supply department In the borough of Manhattan might be made. Weather Signals In India. Monsoon stations aro to be established estab-lished in India for tho purpose of taking tak-ing observations by means of kites and klto balloons. Tho first station will be In the Himalayas at Simla, 7,000 feet abovo the lovol of tho sea. |