MISCELLANEOUS.
Mercury Arc Rectifiers for converting alternating to direct currents; outfits supplied for A. C. circuits of 110-220 and 330 volts with D. C. current capacities up to and including 50 Amps. (For Telephone Battery Service this apparatus may include G. E. Type A Transformer of unit ratio, to be inserted as insulation between A. C. circuit grounded neutral and ground return of the telephone system.) Compensating reactance case must be mounted on base of slate or over non-combustible insulating material when installed on floor or wall of combustible material. Approved April 13, 1908. Manufactured by
General Electric Co., Schenectady, N. Y.
M. S. Cord Grip. A fibre disc for use in socket and attachment plug caps, rosettes and similar devices, replacing knot in flexible pendant cord. Approved April 13, 1908. Manufactured by
Marshall Electric Mfg. Co., 301 Congress St., Boston, Mass.
RECEPTACLES FOR ATTACHMENT PLUG.
Surface receptacles, with pull-off attachment plug. Three-wire, Cat. No. 45,490, 25 A., 125-250 V., for use only with approved sub-base. Two-wire, Cat. No. 45,395, 25 A., 125 V. Approved April 6, 1908. Manufactured by
General Electric Co., Schenectady, N. Y.
Surface Receptacles, 20 A., 25 V. Cleat concealed and moulding types, Cat. Nos. 5,567 to 5,569, inclusive. Flush Receptacle, 20 A., 250 V., Cat. No. 5,551. Approved April 13, 1908. Manufactured by
Harvey Hubbell, Inc., 35 Organ St., Bridgeport, Conn.