£ inchthick, is grooved around theedge and wound with finecopper wire, which termi-nates in a flexible spiral con-nected with the upper hingeof the box. The carbon diskis suspended by a silk threadfrom a spool formed on theinner end of a screw extend-ing through the box cover,and capable of being… … SCISSORS ATTACHMENT. the line, both ends being alike. The connections are shownin condition to call or receive a call. When a call is receivedthe current passes from the line through the switch, E. but-ton 2, key, bottom or outer contact of the key, bell-magnet, and ground wire,W5»» ~=^ \M. | A, to…
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