. A history of real estate, building and architecture in New York City during the last quarter of a century . of arches between iron beams, altogether very unpleasantin ap]iearance. If a level ceiling was determined upon it had to beobtained by wood furrings and wood lathing fastened u]) to the un-derside of the beams and then ])lastered. thus greatly detractingfrom tile fire-resisting (|ualities: or b\ iron lath stretched from ])camto beam and ])laslered. The lieavy weight of the brick arches wasthus further increased l)y the w eiglit of tlie level ceiling arrangementunderneath. An American c
. A history of real estate, building and architecture in New York City during the last quarter of a century . of arches between iron beams, altogether very unpleasantin ap]iearance. If a level ceiling was determined upon it had to beobtained by wood furrings and wood lathing fastened u]) to the un-derside of the beams and then ])lastered. thus greatly detractingfrom tile fire-resisting (|ualities: or b\ iron lath stretched from ])camto beam and ])laslered. The lieavy weight of the brick arches wasthus further increased l)y the w eiglit of tlie level ceiling arrangementunderneath. An American citizen, l\reischer, a well-known manufacturer of fire-brick in Xew ^ork cit\-, invented andpatented in 1871 the use of hollow-tile flat arches between iron floorbeams. His was not the invention of a flat arch in itself, but of aflat arch whose end sections abut against rolled iron floor beams andrecess around the bottom flanges of the l)eams, having on tO]) woocknsleepers and floor beams, thus forming a level ceiling underneathand a walking surface above. The flat-arch system providerl a level. 476 A HISTORY OF REAL ESTATE, ceiling- at once, at less cost and with much less weight of materialthan before; the iron beams were covered in and protected from theef¥ects of fire, and the side walls had a lighter load to carrv. /ooc- It was in the U. S. Post Office building in Xew York in 1872-3that for the first time in this or in any other country was introducedhollow lile fiat arches ]:)ctween iron fioor beams. In the same year,3872, the Krcisclicr fioor arches were jilaced in the Kendall building,corner of i )carI)orn and A\as]ungton streets, Chicago, through theinsirununtality of !\Ir. (ieiirge 11. Jolm-on, a civil engineer who hadpre\-iou.^l\- 1)ecn connected with lladgers Architectural Iron \\ork5in .\e\v \ork. A new impulse was given to fireproof construction,and soon the fiat-arch fioor svstem came into general use for fire-proof buildings all over the country. In a
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Keywords: ., bo, bookcentury1800, booksubjectarchitecture, booksubjectbuilding
