GB1198205A - Apparatus for Constructing Ellipses - Google Patents

Apparatus for Constructing Ellipses

Info

Publication number
GB1198205A
GB1198205A GB2019868A GB2019868A GB1198205A GB 1198205 A GB1198205 A GB 1198205A GB 2019868 A GB2019868 A GB 2019868A GB 2019868 A GB2019868 A GB 2019868A GB 1198205 A GB1198205 A GB 1198205A
Authority
GB
United Kingdom
Prior art keywords
curves
family
sheets
ellipses
tangent point
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
GB2019868A
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.)
Standardgraph Filler und Fiebig GmbH
Original Assignee
Standardgraph Filler und Fiebig GmbH
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
Priority claimed from DE19671561388 external-priority patent/DE1561388A1/en
Application filed by Standardgraph Filler und Fiebig GmbH filed Critical Standardgraph Filler und Fiebig GmbH
Publication of GB1198205A publication Critical patent/GB1198205A/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
    • B43L11/043—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses with stencils

Landscapes

  • Printing Plates And Materials Therefor (AREA)

Abstract

1,198,205. Drawing appliances; stencils. STANDARDGRAPH FILLER & FIEBIG G.m.b.H. 29 April, 1968 [5 May, 1967], No. 20198/68. Headings B6P and B6C. Ellipses are constructed by using two sheets 50, 51, each sheet containing a family of circular curves, the diameters of the curves of each family increasing in arithmetical progression and having a common tangent point 8 or 9, the two sheets being superposed with the centres of the curves on a common axis 12 and with one family of curves displaced 180 degrees with respect to the other family, so that the points of intersection of the curves form a series of ellipses. One or both of the sheets are made of transparent plastic foil. One or both of the sheets may be in stencil form, Fig. 10, containing slots 102 . . . 104 &c., corresponding to a family of curves and having a hole 101 at the tangent point. Longitudinal slots 90 are provided along the axis of symmetry of the curves.
GB2019868A 1967-05-05 1968-04-29 Apparatus for Constructing Ellipses Expired GB1198205A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19671561388 DE1561388A1 (en) 1967-05-05 1967-05-05 Method and device for forming and drawing ellipses

Publications (1)

Publication Number Publication Date
GB1198205A true GB1198205A (en) 1970-07-08

Family

ID=5677575

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2019868A Expired GB1198205A (en) 1967-05-05 1968-04-29 Apparatus for Constructing Ellipses

Country Status (1)

Country Link
GB (1) GB1198205A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2237775A (en) * 1989-11-07 1991-05-15 Richard Inge Wigram Drawing aid

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2237775A (en) * 1989-11-07 1991-05-15 Richard Inge Wigram Drawing aid

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees