GB1035135A - Drawing instrument - Google Patents

Drawing instrument

Info

Publication number
GB1035135A
GB1035135A GB2287664A GB2287664A GB1035135A GB 1035135 A GB1035135 A GB 1035135A GB 2287664 A GB2287664 A GB 2287664A GB 2287664 A GB2287664 A GB 2287664A GB 1035135 A GB1035135 A GB 1035135A
Authority
GB
United Kingdom
Prior art keywords
carriage
pair
bar
instrument
carriage portion
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
GB2287664A
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 Individual filed Critical Individual
Priority to GB2287664A priority Critical patent/GB1035135A/en
Publication of GB1035135A publication Critical patent/GB1035135A/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
    • B43L7/00—Straightedges
    • B43L7/04—Straightedges with rollers

Abstract

1,035,135. Circular curve drawing instrument. G. E. MOORE, and A. T. E. MOORE. June 3, 1965 [June 3, 1964], No. 22876/64. Heading B6P. An instrument for drawing arcuate curves comprises a carriage 10 having two portions 12 and 13 each having a pair of wheels mounted on coaxial axes. One portion of the carriage is pivoted to the other about an axis which is situated on a medial line normal to the axis of rotation of each pair of wheels. A marking instrument 30 is attached to a bar 28 pivoted between two blocks 29. The two carriage portions are clamped by a wing-nut in the adjusted position for a particular radius, and the carriage is then propelled across the surface to be marked. The degree of adjustment can be set with a scale 32, Fig. 2 (not shown), on one carriage portion against a marker on the other carriage portion. Alternatively a sine bar or a slip gauge can be used to set the adjustment, the bar or gauge being positioned between a plane surface 26 on one carriage portion and both or one accurately positioned setting stud 24 mounted on the other carriage portion. As a further alternative one carriage portion may have a single wheel instead of a pair.
GB2287664A 1964-06-03 1964-06-03 Drawing instrument Expired GB1035135A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2287664A GB1035135A (en) 1964-06-03 1964-06-03 Drawing instrument

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2287664A GB1035135A (en) 1964-06-03 1964-06-03 Drawing instrument

Publications (1)

Publication Number Publication Date
GB1035135A true GB1035135A (en) 1966-07-06

Family

ID=10186463

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2287664A Expired GB1035135A (en) 1964-06-03 1964-06-03 Drawing instrument

Country Status (1)

Country Link
GB (1) GB1035135A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4680864A (en) * 1986-09-26 1987-07-21 Heagerty Michael S Drawing guide
FR2675080A1 (en) * 1991-04-10 1992-10-16 Perisse Pierre Drawing apparatus
GB2255750A (en) * 1991-05-14 1992-11-18 Jonathan Gwyn Adams Device for drawing arcs of circles.
US5309643A (en) * 1992-05-19 1994-05-10 Mccollom Robert M Adapter apparatus mounted on a marking instrument to achieve movement in a straight line
CN105599501A (en) * 2016-01-29 2016-05-25 电子科技大学 Compasses based on velocity instant center method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4680864A (en) * 1986-09-26 1987-07-21 Heagerty Michael S Drawing guide
FR2675080A1 (en) * 1991-04-10 1992-10-16 Perisse Pierre Drawing apparatus
GB2255750A (en) * 1991-05-14 1992-11-18 Jonathan Gwyn Adams Device for drawing arcs of circles.
GB2255750B (en) * 1991-05-14 1994-08-10 Jonathan Gwyn Adams Arc defining device
US5309643A (en) * 1992-05-19 1994-05-10 Mccollom Robert M Adapter apparatus mounted on a marking instrument to achieve movement in a straight line
CN105599501A (en) * 2016-01-29 2016-05-25 电子科技大学 Compasses based on velocity instant center method

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