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
Inventor
William Love
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by IndividualfiledCriticalIndividual
Application grantedgrantedCritical
Publication of GB190303200ApublicationCriticalpatent/GB190303200A/en
Length-Measuring Instruments Using Mechanical Means
(AREA)
Abstract
3200. Love, W. Feb. 10. Protractors.-To facilitate reading and setting, the arm G is fitted with three detents K, K<1>, K<11>, which engage with the radial division lines of the protractor scale. The detent K, shown in section in Fig. 3, is mounted on a stud F so as to be capable of a sliding motion through one degree of the scale. The inner end abuts against a wedgeshaped scale and slide S by means of which, the detent K being engaged with one of the divisions, the arm G can be set to the fraction of a degree. Thumb-slides P are provided to throw the detents out of action.
GB190303200D1903-02-101903-02-10A New and Improved Method of Obtaining Measurements from Divided Scales
ExpiredGB190303200A
(en)
Improvements in and relating to Apparatus for Indicating Variations of Range or Distance between Moving Objects, more especially for use in Naval Gunnery.