4. Railway switches and signals
  5. Switch-connected frogs
  6. Swinging tongue

Gerard Testart

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Crossing frog with a moving point

Railway switches and signals – Switch-connected frogs – Swinging tongue
Patent

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Point rail for switching gear

Railways: surface track – Rails – Vignoles
Patent

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Process for modifying the section of a railway rail and rail thu

Metal deforming – Process – With attenuation – thickening – elongating or shortening of...
Patent

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Process for producing a crossing frog with a moving point

Railway switches and signals – Crossings – frogs – and mates – Frogs
Patent

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Process for producing a crossing frog with a moving point

Railway switches and signals – Switch-connected frogs – Swinging tongue
Patent

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Profile ID: LFUS-PAI-P-233765

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