228 



CENTRAL SCIENTIFIC CO., CHICAGO, U. S. A. 



No. 5128 

 Shell. 



No. F3541. 



No. F3542. 



No. 5126. 



No. 5130. 



No. F3543. 



No. F3552. 



No. F3561. 



5106. CUT-OUT, Standard Plug Fuse. Double pole, Edison sockets, slotted porcelain base, for 125 volts, 

 30 amperes. Without fuse plugs -33 



5110. FUSE PLUG, Edison, renewable, will hold any No. 5111 Fuse Link. Fuses easily replaced in insert 



member. No A B C D E 



Carrying capacity, amperes 3 6 10 15 30 



Each 50 .50 .50 .50 .50 



5111. RENEWAL LINKS for No. 5110 Per 100 2.00 2.00 2.00 2.00 2.00 



For FUSE WIRE see No. 14438. 



F3405. POLARITY INDICATOR. Indicates instantly the negative and positive poles when connected 

 in circuit. Size, 2.5x9 cm. Nickel-plated shell which covers and protects the glass tube from 



injury. For voltages up to 50 $2.40 



F3406. POLARITY INDICATOR. Same as No. F3405, but for voltages from 50 to 600 2.40 



F3409. POLE-INDICATING PAPER. When two electrical leads, or terminals, are placed close together 

 upon a piece of the moistened paper, the negative pole shows a red stain. In books of 25 strips, 



7x1 cm Per book .10 



For PUSH BUTTONS see Nos. 1198-1200. 



5114. RECEPTACLE, to take No. 5116 Plug, for open wiring; porcelain 30 



5116. PLUG, for No. 5114 Receptacle, with two finger contacts; black moulded material. Used also on 



Nos. 5100, 5102 and 5103 20 



5118. RECEPTACLE, Key, for open wiring, Edison; porcelain base, brass shell 70 



5120. RECEPTACLE, Keyless, for open wiring, Edison; porcelain 25 



5122. RECEPTACLE, Mounted. No. 5120 Beceptacb mounted on a wood base 10x10 cm, with binding 



posts. Suitable for use with any Edison base incandescent lamp 1.25 



5124. RECEPTACLE, Miniature, porcelain, for No. 8196 Lamps 09 



5126. ROSETTE, fuseless, for open wiring, for 250 volts or less; porcelain . . '. 30 



5128. SOCKET, key, Edison, brass, for use on lamp cord; may also be used on % inch I. P. size male 

 thread. Of new design, having the two parts of the shell held together by a threaded brass ring, 

 which is readily removed when the socket is to be rewired. (Illustration shows construction 



clearly) .50 



5130. SOCKET, keyless, Edison, porcelain, with two finger contacts, for use with Nos. 5100, 5102, 5103 



and 5114 in place of the separable cover .30 



SPARK COILS, see Induction Coils. 



F3541. SWITCH, Knife, porcelain base, single pole, single throw, 25 amperes. Base about 3x8 cm. .35 

 F3542. SWITCH, Knife, porcelain base, single pole, double throw, 25 amperes. Base about 3.5x10 cm. .50 

 F3543. SWITCH, Knife, porcelain base, double pole, single throw, 25 amperes. Base about 5x6.5 cm . .55 

 F3544. SWITCH, Knife, porcelain base, double pole, double throw, 25 amperes. Base about 6.5x10 cm. .80 

 F3551. SWITCH, Rubber Base, 1 point, with binding post. Base about 5x7.5 cm 1.20 



