. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . aper presented was lliat liyS. J. Kidder on Electric Car and irainBrakes. Mr. Kidder reviewed I lie lU--velopment of the street car brake, be-giniiins; with tlie small horse ear and end- on the part of the inventors, have notproven sufficiently meritorious to find afield of prominence as a power brake inelectric car braking. Next in order comes the compressedair brake, which is rapidly intro-duced on motor-driven railway cars, andproving the most efficacious of those yetcommented on.
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . aper presented was lliat liyS. J. Kidder on Electric Car and irainBrakes. Mr. Kidder reviewed I lie lU--velopment of the street car brake, be-giniiins; with tlie small horse ear and end- on the part of the inventors, have notproven sufficiently meritorious to find afield of prominence as a power brake inelectric car braking. Next in order comes the compressedair brake, which is rapidly intro-duced on motor-driven railway cars, andproving the most efficacious of those yetcommented on. It would thus appear that the historyof power brakes for the cars under con- form, having one or more main reser-voirs, a brake cylinder, in which the airexerts its enerpy in applying the Ijrakcsthrough the foundation brake gear usual-ly employed in air brake practice, one ortwo engineers brake valves, or, moreproperly speaking, niotormans brakevalves, and an air gauge denoting mainreservoir and brake cylinder pressure—the above arrangement being common tothe three types of brakes known as stor-. WESTINGHOUSE AIR COMPANYS E-XHIBIT, WORLDS FAIR. ST. LOUIS, MO. ing with the large, heavy interurban andelevated car. He said in part: The first, or friction brake, does notappear of sufficient importance to de-mand extended consideration, not muchhaving been demonstrated in its favor,it appearing that first cost is about theonly thing to invite its serious it will never attain standing as apower brake in connection with motor-driven cars. Hydraulic brakes have been experi-mented with and used to some extent,and. while they exhibit no little ingenuity sideration is but a repetition of thatstrived for at a more remote period forsteam roads, and that compressed airstill leads the van in attaining decidedprominence as the most practical andefficient agent for operating such the steam roads, however, we findthat in connection with street or electriccar
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