| OCR Text |
Show INGENIOUS AND . INSTRUCTIVE INSTRUMENT There has been placed In front of RIter Bros. Drug Co, Tho Rexall Storo, nn Instrument known as a Thermograph or recording thermometer. thermo-meter. Instead of using a quick silver or nlcohol thermometer, tho working part of this instrument consists of: n spiral metallic coll which Is vory scnsltlvo to any change of temperature. tempera-ture. To this coll Is attached an nrm which Is about 7 Inches long on tho end of which is attached a pen which roglstors tho different changes chang-es as thoy tako placo, on a drum, (containing a clock). Tho clock rotates ro-tates on Its axis once a week and has a chart wrapped afound it, which Is divided Into tho dys of tho weok nnd each day Is divided into hour spnees. Tho pon on tho arm rises, or lowers as tho tompcraturo Incrcas-es Incrcas-es or decreases. As tho clock revolves, re-volves, a chart is mado which Indicates Indi-cates tho tlmo which each change tnkos ptaco. For Instanco: Tho record Indicates that tho hlghoat tomporaturo be-tween be-tween Saturday 12:00 noon, and Sun-day1 Sun-day1 12i00 noon, was 48 degrees; while tho lowest tomporaturo wns nt 7:45 n, m. Sunday, 18 degrees bo-low bo-low froozlng or 14 dogreos abovo zero. In somo instances it Is necessary to havo a knowledgo of what tho tern-poraturo tern-poraturo has been during any previous prev-ious period for any particular tlmo. A chart Is "sod for this purpose. Theso ycharts aro put on weekly nnd tho chart barrylng tho record can bo filed away for future roferonco so that one ca nhavo a continuous record rec-ord of tho chnngos of tho tomporaturo for ovcry hour, from week to weok. Above this tho passerby will observe ob-serve an Aneroid Barometer whfch Is constructed on such slmplo lines that any' ono can road what tho weather wea-ther wl bo for 24 hours to 48 tours In advance. Tho firm makes a specialty of selling sell-ing standard thormomotora of nil kinds, both for tho liousdlidldns well' as the Indlsponsablo fever thormomo. tor, which should' bo' fa ove'ryhouBO-hold |
