GB436830A - Elliptical and circular drawing compass - Google Patents

Elliptical and circular drawing compass

Info

Publication number
GB436830A
GB436830A GB3590034A GB3590034A GB436830A GB 436830 A GB436830 A GB 436830A GB 3590034 A GB3590034 A GB 3590034A GB 3590034 A GB3590034 A GB 3590034A GB 436830 A GB436830 A GB 436830A
Authority
GB
United Kingdom
Prior art keywords
fixed leg
leg
arm
clamped
carries
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
GB3590034A
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 GB3590034A priority Critical patent/GB436830A/en
Publication of GB436830A publication Critical patent/GB436830A/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
    • B43L11/00—Non-circular-curve-drawing instruments
    • B43L11/02—Non-circular-curve-drawing instruments for drawing conic sections
    • B43L11/04—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses
    • B43L11/041—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses by means of a compass

Landscapes

  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)

Abstract

436,830. Ellipsographs. GARDNER, A. J., 102, St. Stephen's Avenue, Shepherd's Bush, London. Dec. 14, 1934, No. 35900. [Class 97 (iii)] An ellipsograph comprises a fixed leg 1 adapted to be held in an upright position on the marking surface, a movable leg 5 carrying a pencil 5<a> and held parallel with the fixed leg by links 6, 8, 9, while being free to revolve around and also to move away from and towards the fixed leg, the fixed leg carrying an angularly adjustable arm 15 mounted to revolve around it, and a guide member 16 mounted to slide on the movable leg 5 and connected by a universal joint to the arm 15. The fixed leg is cranked and carries a hollow cylinder 10 mounted on a pivot pin about which it may tilt and carries a sector 13 by which it may be clamped in the tilted position. The arms 15 which is of adjustable length is pivoted on the bearing 10 and attached at the other end to the guide 16 through a universal joint. The leg 5 is provided with two points 2, 3 one of which is placed at the centre and the other along the major axis of the ellipse. The point 5<a> is then placed at the end of the major axis, thus adjusting the length of the arm 15 which is clamped by screws 19. The point 5<a> is then placed at the end of the minor axis thus tilting the arm 15 which is clamped by a screw 14.
GB3590034A 1934-12-14 1934-12-14 Elliptical and circular drawing compass Expired GB436830A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3590034A GB436830A (en) 1934-12-14 1934-12-14 Elliptical and circular drawing compass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3590034A GB436830A (en) 1934-12-14 1934-12-14 Elliptical and circular drawing compass

Publications (1)

Publication Number Publication Date
GB436830A true GB436830A (en) 1935-10-18

Family

ID=10382783

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3590034A Expired GB436830A (en) 1934-12-14 1934-12-14 Elliptical and circular drawing compass

Country Status (1)

Country Link
GB (1) GB436830A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2493229A (en) * 1948-08-26 1950-01-03 Dibrell Instrument for drawing ellipses or the like
US2607991A (en) * 1949-06-13 1952-08-26 William J Fleetwood Ellipsograph
US2632953A (en) * 1950-02-11 1953-03-31 Robert S Kafka Ellipsoidal compass
US2645854A (en) * 1950-04-06 1953-07-21 James W Dibrell Instrument for drawing ellipses and related figures
CN113155745A (en) * 2020-01-07 2021-07-23 江苏鲁汶仪器有限公司 Wafer parameter measuring device based on ellipsometer
CN113334973A (en) * 2021-07-02 2021-09-03 重庆第二师范学院 Ellipse and ellipse tangent drawing device and using method thereof

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2493229A (en) * 1948-08-26 1950-01-03 Dibrell Instrument for drawing ellipses or the like
US2607991A (en) * 1949-06-13 1952-08-26 William J Fleetwood Ellipsograph
US2632953A (en) * 1950-02-11 1953-03-31 Robert S Kafka Ellipsoidal compass
US2645854A (en) * 1950-04-06 1953-07-21 James W Dibrell Instrument for drawing ellipses and related figures
CN113155745A (en) * 2020-01-07 2021-07-23 江苏鲁汶仪器有限公司 Wafer parameter measuring device based on ellipsometer
CN113334973A (en) * 2021-07-02 2021-09-03 重庆第二师范学院 Ellipse and ellipse tangent drawing device and using method thereof

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