{TAIL ~ An on/off switch} is provided by metal rod 24 to which the electrical leads are connected and which is rotatable into and out of contact with one of the terminals of {HEAD ~ batteries} 20 to complete or break the circuit between batteries 20 and motor 16 
{ TAIL ~ An on / off switch } is provided by metal rod 24 to which the electrical leads are connected and which is rotatable into and out of contact with one of the terminals of { HEAD ~ batteries } 20 to complete or break the circuit between batteries 20 and motor 16
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