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GB606307A - Improvements in or relating to geometrical compasses - Google Patents

Improvements in or relating to geometrical compasses

Info

Publication number
GB606307A
GB606307A GB109946A GB109946A GB606307A GB 606307 A GB606307 A GB 606307A GB 109946 A GB109946 A GB 109946A GB 109946 A GB109946 A GB 109946A GB 606307 A GB606307 A GB 606307A
Authority
GB
United Kingdom
Prior art keywords
pair
legs
spring wire
point
compasses
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
Application number
GB109946A
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.)
WILLIAM LAWTON MARKHAM
Original Assignee
WILLIAM LAWTON MARKHAM
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 WILLIAM LAWTON MARKHAM filed Critical WILLIAM LAWTON MARKHAM
Priority to GB109946A priority Critical patent/GB606307A/en
Publication of GB606307A publication Critical patent/GB606307A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L9/00—Circular curve-drawing or like instruments
    • B43L9/02—Compasses

Landscapes

  • Toys (AREA)

Abstract

606,307. Drawing-compasses. MARKHAM, W. L. Jan. 11, 1946, No. 1099. [Class 97 (iii)] The legs are formed by strips of material 1 pivoted together at 3 and provided along each edge with sockets or inwardly facing open channels 2 adapted to support a spring wire frame 11, 12, carrying the point 13, a spring wire pencil clip, Fig. 5, and at the other ends of the legs a pair of spring wire extensions 15, each provided with an eye formation 18 to receive a marking point. The pivot bolt 3 may pass through a selected pair of a series of holes 4 in the strips 1. A spacer 19, Fig. 8, may cooperate with a pair of holes 4 to hold the legs at a predetermined angle. When used as proportional dividers the point and pencil holder are replaced by an additional pair of extensions 15.
GB109946A 1946-01-11 1946-01-11 Improvements in or relating to geometrical compasses Expired GB606307A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB109946A GB606307A (en) 1946-01-11 1946-01-11 Improvements in or relating to geometrical compasses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB109946A GB606307A (en) 1946-01-11 1946-01-11 Improvements in or relating to geometrical compasses

Publications (1)

Publication Number Publication Date
GB606307A true GB606307A (en) 1948-08-11

Family

ID=9716140

Family Applications (1)

Application Number Title Priority Date Filing Date
GB109946A Expired GB606307A (en) 1946-01-11 1946-01-11 Improvements in or relating to geometrical compasses

Country Status (1)

Country Link
GB (1) GB606307A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2658278A (en) * 1949-12-16 1953-11-10 Victor S Debs Multiple precision instrument and tool
US2770884A (en) * 1953-08-03 1956-11-20 Joseph F Eckert Measuring instrument
GB2155407A (en) * 1984-02-22 1985-09-25 Djordje Rabatic Geometric device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2658278A (en) * 1949-12-16 1953-11-10 Victor S Debs Multiple precision instrument and tool
US2770884A (en) * 1953-08-03 1956-11-20 Joseph F Eckert Measuring instrument
GB2155407A (en) * 1984-02-22 1985-09-25 Djordje Rabatic Geometric device

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