GB191322117A - A Plotting Board for use in Manoeuvring Ships. - Google Patents
A Plotting Board for use in Manoeuvring Ships.Info
- Publication number
- GB191322117A GB191322117A GB191322117DA GB191322117A GB 191322117 A GB191322117 A GB 191322117A GB 191322117D A GB191322117D A GB 191322117DA GB 191322117 A GB191322117 A GB 191322117A
- Authority
- GB
- United Kingdom
- Prior art keywords
- scale
- ring
- zero
- graduated
- plotting
- Prior art date
- 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
Links
Abstract
22,117. Grant, H. C. J. Oct. 1. Protractors.-Consists of a modified form of the plotting - board described in Specification 9145/07. The dial A, having a graduated rim a, is surrounded by a revoluble ring c to which is secured an arm acting as a guide for the graduated T-shaped cursor d, which can move along the diameter of the ring c passing through the zero of the vernier &c. e. On the cursor are the radial scale h and the transverse scale j, the units of these two scales being of the same length. The scale h is read against a mark h<1> on the ring c, and the scale j is graduated on each side of a zero, which is at the centre of the dial when the zero of the scale h is opposite the point h<1>. The ring c also carries the verniers &c. f, g, at 180 degrees apart. The instrument can be used for solving various problems in navigation by plotting.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB191322117T | 1913-10-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB191322117A true GB191322117A (en) | 1914-07-30 |
Family
ID=32646591
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB191322117D Expired GB191322117A (en) | 1913-10-01 | 1913-10-01 | A Plotting Board for use in Manoeuvring Ships. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB191322117A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2534288A (en) * | 1945-10-16 | 1950-12-19 | Jr Charles W Merriam | Maneuvering board attachment |
US2548202A (en) * | 1949-11-18 | 1951-04-10 | Theron P Davenport | Maneuvering machine |
US3755904A (en) * | 1971-01-29 | 1973-09-04 | Gen Control Corp | Marking instrument for dental castings |
-
1913
- 1913-10-01 GB GB191322117D patent/GB191322117A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2534288A (en) * | 1945-10-16 | 1950-12-19 | Jr Charles W Merriam | Maneuvering board attachment |
US2548202A (en) * | 1949-11-18 | 1951-04-10 | Theron P Davenport | Maneuvering machine |
US3755904A (en) * | 1971-01-29 | 1973-09-04 | Gen Control Corp | Marking instrument for dental castings |
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