Approved Electrical Devices
Reading edition
This department from time to time will contain an illustrated description of all fittings approved by the Underwriters’ National Electric Association.
CONDUIT BOX, FLOOR OUTLET.
Iron box, brass floor plate and nozzle. Cat. No. 100. Approved March 20, 1908. Manufactured by
Arthur Frantzen Co., 92 W. Van Buren St., Chicago, Ill.
GROUND CLAMPS.
“Neco” and “Griptite” clamps for rigid conduit, in sizes for ½-inch to 3-inch pipe. ”Flexclamp” for Greenfield flexible steel conduits or armored cable, sizes A to E, inclusive. Approved March 20, 1908. Manufactured by
Novelty Electric Co., 50-54 North Fourth St., Philadelphia, Pa.
PANELBOARDS.
Cuthbert Panelboards, 125, 125-250, and 250 V., two and three wire, with double pole knife or snap switches and link, Edison plug or cartridge inclosed fuses. Approved March 20, 1908. Manufactured by
Cuthbert Electrical Manufacturing Co., 105-109 S. Clinton St., Chicago, Ill.
RECEPTACLES FOR ATTACHMENT PLUGS.
Surface receptacles with pull-off attachment plugs. Two-wire, Cat. No. 45,395, 25 A, 125 V; three-wire, Cat. No. 45,490, 25 A, 125-250 V. (For use with approved sub-base only.) Approved March 20, 1908. Manufactured by
General Electric Co., Schenectady, N. Y.
SWITCHES, KNIFE.
Cuthbert Panelboard Switches, 15 A, 125 V, and 25 A, 250 V. Approved March 20, 1908. Manufactured by
Cuthbert Electrical Manufacturing Co., 105-109 S. Clinton St., Chicago, Ill.
CONDUIT BOXES.
“Unilets” cast-iron outlet boxes with threaded openings for ½ to 3-inch rigid conduit. With covers of stamped steel or porcelain, or with porcelain bushings. Types 1-12 and 14. Approved April 13, 1908, for exposed work only. Manufactured by
Appleton Electric Co., 224 Washington St., Chicago, Ill.
FIXTURES.
“Oamco” show window reflector. Cat. Nos. 655, 655A, 655B, 655C. A metal trough lined with glass reflectors and fitted with approved lamp sockets carried on cast-iron arms bolted to iron pipe containing wiring. Approved April 13, 1908. Manufactured by
Overbaugh & Ayres Mfg. Co., 232 South Clinton St., Chicago, Ill.
LAMP ADJUSTERS.
“Gem” lamp Adjusters, styles A and B. A pulley-wheel mounted in iron bracket, wheel controlled by locking mechanism so as to permit the adjustment of a pendant lamp hung from a porcelain knob secured to device. Suitable for use with flexible pendant cord. Approved April 13, 1908. Manufactured by
Gem Mfg. Co., 467 Eleventh Ave., Milwaukee, Wis.
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.
Lang stage receptacle and plug, 125 and 250 V. Base of single piece of hard porcelain or alberene stone. Hardwood plug for stage cable. For use in suitable iron or steel box. Approved April 13, 1908. Manufactured by
J. Lang Electric Co., 116 N. Lincoln St., Chicago, Ill.
Russell stage pocket and plug, Cat. No. 13, 50 A., 125 V. Receptacle with porcelain base mounted in suitable cast-iron box. Plug of red fibre provided with fibre clamp replacing knot in cord. Approved April 13, 1908. Manufactured by
Russell & Stoll Co., 48 Cliff St., New York, N. Y.
RECEPTACLES, STANDARD.
Bryant Receptacles, 3 A., 250 V., Sign, Cat. Nos. 1,700 and 46,749. Cleat Cat. Nos. 9,402, 9,403, 921, 1,011, 1,123, 50,715, 11,221, 28,795, 58,949, 58,300, 58,301. Concealed, Cat. Nos. 50,744, also 9,447, fusible 2 A., 125 V. Moulding, Cat. Nos. 42,453, 58,302 and 58,950. Conduit box. Cat. Nos. 9,514 and 9,397. Rosette receptacles, cleat and concealed types, fusible, 2 A., 125 V., Cat. Nos. 9,434, 9,436, 9,438, 9,404, 9,405 and 9,406. Approved April 2, 1908. Manufactured by
Bryant Electric Co., Bridgeport, Conn.
Porcelain shell, keyless, 3 A., 250 V. Cleat type, Cat. Nos. 28,794, 28,795 and 11,221. Concealed type, Nos. 50,744 and 50,717. Conduit boxes, Nos. 9,397, 40,537, 49,354 and 9,514. Sign receptacle, No. 46,627. Wall sockets, brass shell, key, 50 C. P., keyless. 3 A., 250 V. Concealed base, Nos. 9,184, 27,743, 29,404, 9,185, 27,743 and 29,405. Angle base, Nos. 50,753, 28,721, 29,406, 50,755. 28,722 and 29,407. Approved April 13, 1908. Manufactured by
General Electric Co., Schenectady, N. Y.
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Entered as second-class matter at the San Francisco Post Office as “The Electrical Journal,” July, 1895.
Entry changed to “The Journal of Electricity,” September, 1895.
Entry changed to “The Journal of Electricity, Power and Gas,” August 15, 1899.
Entry changed May 1, 1906, to “The Journal of Electricity, Power and Gas,” Weekly.
Vol. XX MAY 2, 1908 No. 18