. The Street railway journal . pressing on both the wheeland the hub separately. Inaddition, it was found to beexpensive to mill out thetool casting, because of therapid using up of the tools,and so a female V has beenput in the cast iron at anangle of about 15 deg.,which makes it easier toprepare the hub and lessensthe cost. In addition to this,Mr. Fogarty has adopftedthe practice of having thegear on the inside of thehub, as shown in theaccompanying adds still further to the ease of handling the rims, especially where solid wheelsare used, and tends toward reducing the time
. The Street railway journal . pressing on both the wheeland the hub separately. Inaddition, it was found to beexpensive to mill out thetool casting, because of therapid using up of the tools,and so a female V has beenput in the cast iron at anangle of about 15 deg.,which makes it easier toprepare the hub and lessensthe cost. In addition to this,Mr. Fogarty has adopftedthe practice of having thegear on the inside of thehub, as shown in theaccompanying adds still further to the ease of handling the rims, especially where solid wheelsare used, and tends toward reducing the time required forreplacing the rims, which is about an hour. As in previouspractice. Mr. Fogarty still adheres to the use of four i;^ bolts passing through round holes with somedraw for attaching the rim to the hub, but for exceedinglyheavy work six bolts can be used. This method insuresa perfect fitting rim, as the bolts, drawn tight, force the riminto the V of the cast iron. ♦-♦-» MECHANICAL AND SPLICING EARS. Slnt! .In Juurnal SECTIONAL GEAR WHEEL S. Dixon & Son, Ltd., of Leeds, England, have justplaced on the market a new mechanical ear for suspend-ing overhead trolley wire. The metal of which the clampsare made is specially hard rolled and has a breaking strainof over 29 tons per sq. in., as against the 19 tons per of ordinary cast gun-metal ears made from the Brit-ish Admiralty mixture. An important feature of this earis its interchangeability. Every part is made to standardgage and each can be renewed separately at any time, thusobviating the necessity of scrapping the entire ear. Theeasy and effective way in which a straight line ear canbe made into an anchor or a feeder ear are well worthconsidering. These ears are made in five distinct types,the clip style varying for grooved, round. Fig. 8 and bowtrolley wires, and the sweated type for round wire extra attachments are for anchor and feeder ears. The company also makes an automatic spli
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
