. Electric railway journal . withRenewable Centers SINCE the description of the plain articulated castmanganese crossing, in the issue of the ElectricRailway Journal for Jan. 26 was published, the inven-tor, Stephen Balkwill, president The Balkwill ManganeseCrossing Company, Cleveland, Ohio, has securedpatents on a renewable center crossing. The generalprinciple used in this crossing is the same as that under-lying the earlier one, but the new crossing has renew-able centers, flexibly supported, around which the otherparts of the articulated crossing are assembled. Thedetails of construction a
. Electric railway journal . withRenewable Centers SINCE the description of the plain articulated castmanganese crossing, in the issue of the ElectricRailway Journal for Jan. 26 was published, the inven-tor, Stephen Balkwill, president The Balkwill ManganeseCrossing Company, Cleveland, Ohio, has securedpatents on a renewable center crossing. The generalprinciple used in this crossing is the same as that under-lying the earlier one, but the new crossing has renew-able centers, flexibly supported, around which the otherparts of the articulated crossing are assembled. Thedetails of construction are shown herewith by a numberof line drawings. Fig. 1 is a general assembly plan of a right-anglecrossing of the new type, while Fig. 2 shows the separatepieces ready to put together. A complete crossing con-sists of four U-shaped pieces, like A, four corner pieceslike B, four centers like C and four angle bars on knee-braces like D, together with chrome nickel or vanadiumheat-treated steel bolts for fastening all Section b-b AN ARTICULATED TRACK CROSSING WITH RENEWABLE CENTERSFig. 1—Plan of right-angle cast manganese crossingFig. 2—Separate parts of crossing represented In Fig. 1Fig. 3—Plan of right-angle crossing with rolled rail guardsFig. 4—Parts of crossing represented in Fig. 3 In the drawings a number of cross-sections have beenreproduced in order more clearly to show the con-struction. It will be noted that cross-sections b and blare stated to be optional. The only difference betweenthe construction as indicated in the two sections is thatin b the two pieces forming the section at this pointare directly connected together. In the alternative con-struction shown in section 61 a filler block or separatoris used between the two main pieces, which are recessed 20 Electric Railway Journal Vol. 52, No. 1 to receive it. The former construction is slightly moresubstantial but the latter construction can be used, ifdesired, in order to simplify the grinding op
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