Building & engineering news . d) are dangerously deficient inthis respect, Frandsen sajs. By using structural angles with thelong legs horizontal and the short legsvertical, the Angle-Tee-Joists, the in-ventor claims, obtain a greater leverarm for the resisting forces than ifround bars were used and also ac-quires greater lateral stiffness. The manufacturing process is mod-ern. Ey applying tiie latest spot-weld-ing machines every weld will be ofuniform and reliable strength. Before proceeding to weld the joists together the machines will be adjust-ed so that when the fusing tempera-ture is jus
Building & engineering news . d) are dangerously deficient inthis respect, Frandsen sajs. By using structural angles with thelong legs horizontal and the short legsvertical, the Angle-Tee-Joists, the in-ventor claims, obtain a greater leverarm for the resisting forces than ifround bars were used and also ac-quires greater lateral stiffness. The manufacturing process is mod-ern. Ey applying tiie latest spot-weld-ing machines every weld will be ofuniform and reliable strength. Before proceeding to weld the joists together the machines will be adjust-ed so that when the fusing tempera-ture is just right, the electric cur-rent will be shut off by thermostatics!control, i. the welds will never l>eheated too little or too much, Frand-sen says. They will be just as stand-ardized as the rivets driven by a bull-riveter. The personal judgment nfcorrectness is eliminated. The cost of welding a joist togeth-er, Frandsen claims, is less than halfof what it now costs by the arc-weld-ing and inuldling of surface edges a.^. R IV1. FRANDSEN now commonly used. Two men willnow be able, by means of the mostmodern spot - welding machines, tomake just as many joists per day aseight men now can weld with thepresent method. ^Ir. Frandsen desires independentmanufacturers in every state in theFnion for making and placing his new-joists. He hopes that by making animproved steel joist for less cost, hewill increase the use of structuralsteel in preference to reinforced con-crete or wooden joists. He expects thegreatest sale will be in the East, wheresteel is cheaper and wood more ex-pensive than on tlie Pacific Coast. ETHICS VS. COMPETITIVE BIDDING AMONG ENGINEERS Of late there has been an increas-ing tendency on the part of municipalofficials, the country over, to call forcompetitive bids for engineering ser-vices on contemplated public im-provement work, says Charles , engineer and lawyer, editor-ially in the August issue of Profes-sional Engineer, just published. The latest
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