Definition of Contact arm
1. Noun. Contact consisting of a conducting arm that rotates over a series of fixed contacts and comes to rest on an outlet.
Generic synonyms: Contact, Tangency
Group relationships: Rheostat, Variable Resistor, Selector, Selector Switch
Derivative terms: Wipe
Contact Arm Pictures
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Lexicographical Neighbors of Contact Arm
Literary usage of Contact arm
Below you will find example usage of this term as found in modern and/or classical literature:
1. Principles and Practice of Electrical Engineering by Alexander Gray (1917)
"The field contact arm A and the armature contact arm B are mounted on the same ... The contact arm 'A is then free to move backward over the field contacts ..."
2. Transactions of the American Institute of Electrical Engineers by American Institute of Electrical Engineers (1911)
"The master selector consists of a standard clock-work mechanism, to the second hand of which is attached a contact arm. In the path of this contact there ..."
3. Electricity at the Columbian Exposition: Including an Account of the by John Patrick Barrett (1894)
"It will be seen that the shaft and contact arm have a rotary motion, and if more than one hundred telephones are in the system the contact arm has also a ..."
4. Dyke's Automobile and Gasoline Engine Encyclopedia by Andrew Lee Dyke (1920)
"When cam 0 is rotated it touches the fibre block in contact arm A. thus ... Rotation of cam C brings it against the fibre block In the contact arm A, ..."
5. Self-propelled Vehicles: A Practical Treatise on the Theory, Construction by James Edward Homans (1910)
"217 and the contact arm resumes its position of rest against the stop. With the engagement of the snapper by the next tooth of the ratchet, the process is ..."
6. Classroom Lecture Notes, Automotive Starting, Lighting and Ignition: With by Roy Charles Fryer (1918)
"Remove small cotter in contact-arm stud. 4. Place screw-driver behind terminal to which contact arm spring is bolted and pry this terminal lightly toward ..."
7. The Marine Steam Turbine: A Practical Description of the Parsons Marine by John William Major Sothern (1909)
"The torsion reading will then be found on the scale opposite the main contact arm. Should the tick not cease entirely but appear to be equally low on each ..."