| 1. | The moving signal arms were suspended with counterweights to enable easy adjustment.
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| 2. | One stop signal arm is required; a second may also be installed.
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| 3. | All signal arms were still painted red at this time.
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| 4. | The levers and signal arms were connected by hemp ropes and later by wire cables.
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| 5. | At a Chicago car show, some visitors got into a car and yanked off the turn-signal arm.
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| 6. | He also argued successfully that the train-track signal arms malfunctioned, lifting before the train reached the crossing.
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| 7. | The signal arm and signal mast were also green and white until 1922; then red and white.
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| 8. | The position of each lever corresponded to the three-level alignment of the signal arms on the mast above.
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| 9. | Police said they apparently did not see the unlighted signal arm over the tracks until too late . ( pfg)
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| 10. | From 1872, distant signal arms ( see below ) were distinguished by having a " fishtail " notch cut into the end.
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