Range estimating device for golfers

Geometrical instruments – Straight-line light ray type – Multisight line

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33262, G01C 300

Patent

active

039770869

ABSTRACT:
Apparatus for estimating the range of a golf course flagstick in terms of a number of paces which is common to all users. An opaque body adapted to be held in the hand is so shaped that its profile has two parallel ridges which face in the same direction, are separated by 47/64 inch, and lie on the same side of a perpendicular line along which they terminate. In use, the apparatus is held at arm's length so that the ridges are horizontal and the lower ridge is aligned with the lowermost visible extremity of the flagstick. In the special case when the upper ridge is found to be in line with the uppermost end of the flagstick the observer is 100 paces from the flagstick. In the general case the distance to the flagstick in relation to 100 of the user's paces then consists in the ratio of the observed distance between the ridges to the observed height of the flagstick.
In one embodiment the ridges are comprised by the elevational profiles of a pair of spaced annular elements, the elements being separated by a stem of reduced diameter, a second stem element depending from one of the annular elements so that it may be easily grasped by a user.

REFERENCES:
patent: 1363670 (1920-12-01), Parker et al.
patent: 2519727 (1950-08-01), Yezdan
patent: 2574599 (1951-11-01), Stieber
patent: 3251571 (1966-05-01), Ernest
patent: 3409987 (1968-11-01), New
patent: 3824698 (1974-07-01), Brucker
patent: 3846918 (1974-11-01), Wehlan

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