Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
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Arthur Trevor Dawson
James Horne
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Individual
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Individual
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Publication of GB191500895ApublicationCriticalpatent/GB191500895A/en
895. Dawson, Sir A. T., and Horne, J. Jan. 19. Sights and methods of sighting.-Relates to signalling apparatus for ordnance of the kind in which a step-by-step motor A drives the range or deflection pointer through gearing, and consists in connecting the armature spindle B to the gearing through a clutch, the elements b, b<1> of which are so constructed that they only engage at one or more definite relative angular positions, thereby ensuring correct angular relationship between the armature and its pointer when the motor is detached and reassembled. The armature spindle B also carries a clutch element b<2> arranged opposite a handoperated clutch element C, so that the spindle can be zeroised by depressing and rotating the handle C'. The clutch C is carried by a water-tight cover A<2> secured to the motor-casing A'.
GB191500895D1915-01-191915-01-19Improvements in or relating to Electrical Receiving Apparatus Especially Intended for use with Ordnance.
ExpiredGB191500895A
(en)
Improvements in or relating to Apparatus for the Observation of Azimuth Angles and the Simultaneous Electrical Transmission of the Value of such Angles to Remote Indicators.