Pacific service magazine . ing mattresses and pillows requires a dryheat of 230 degrees Fahrenheit maintainedfor thirty minutes. To meet these condi-tions an oven was constructed to give aneven heat throughout. A cold spot broughtup to temperature would mean a resultinghot spot in another section with scorchingeffect upon the materials being was found that the average article wouldscorch at 275degrees Fahren-heit. Some ofthe lighter andless expensivematerialsscorched atmuch lowertemperat u firing ofthe oven pre-sented a varietyof requirementsto produce thenecessary heat,qu
Pacific service magazine . ing mattresses and pillows requires a dryheat of 230 degrees Fahrenheit maintainedfor thirty minutes. To meet these condi-tions an oven was constructed to give aneven heat throughout. A cold spot broughtup to temperature would mean a resultinghot spot in another section with scorchingeffect upon the materials being was found that the average article wouldscorch at 275degrees Fahren-heit. Some ofthe lighter andless expensivematerialsscorched atmuch lowertemperat u firing ofthe oven pre-sented a varietyof requirementsto produce thenecessary heat,quickly, accur-ately and even-ly. The maxi-mum burnercapacity must give 230 degrees Fahrenheitwithin two or three minutes after a loadhas been placed in the oven, and yet have aminimum burner capacity small enough tojust hold at 230 degrees Fahrenheit or dropa few degrees. To furnish an evenly heatedatmosphere at all times a system of quickrecirculation was necessary, and this alsohelped considerably in giving a fast temper-. Exterior of the Central Sterilizing Plant ature rise. A torch or carriage was essentialto the operation as no loading could bedone in direct contact with the heat of theroom. The construction of the truck hadto be such that it would be easily andquickly unloaded, reloaded and moved. The oven was built in sections withtongue and groove joints, the walls beingof heavy sheet metal filled with Sil-O-CelC-3 powder. This construction gave athree-inch wall of insulated material. Thesections were bound into a unit by angleiron corners and braces with longitudinaltie-rods belted tight. The inside dimensionsof the oven are 6x13x8 feet. The roofsections were made to cap over the sidewalls, giving a tight seal on the top, whilethe base was sealed by grouting into achannel iron frame set in a groove in aconcrete floor. A counter-balanced door was providedof the same gen-eral construc-tion as the wallsof the oven,making uppractically thefull size of thefront wall. Surface
Size: 1791px × 1396px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, bookidpacificservi, bookyear1912
