GB225119A - Improvements in instruments for drawing ellipses - Google Patents

Improvements in instruments for drawing ellipses

Info

Publication number
GB225119A
GB225119A GB1007324A GB1007324A GB225119A GB 225119 A GB225119 A GB 225119A GB 1007324 A GB1007324 A GB 1007324A GB 1007324 A GB1007324 A GB 1007324A GB 225119 A GB225119 A GB 225119A
Authority
GB
United Kingdom
Prior art keywords
shank
collar
pivoted
frame
spindle
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
GB1007324A
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
Priority to DE1921Z0012505 priority Critical patent/DE405804C/en
Priority to FR552097D priority patent/FR552097A/en
Application filed by Individual filed Critical Individual
Priority to GB1007324A priority patent/GB225119A/en
Priority to CH111376D priority patent/CH111376A/en
Publication of GB225119A publication Critical patent/GB225119A/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

  • Toys (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

225,119. Zuliani, P. April 23, 1924. E l l i p s o g r a p h s.- A frame having a bowed portion 1 and a straight portion 3 is formed with bearings 5, 6, 7 for a spindie 4, to the lower end of which is pivoted a foot 8 having three equidistant prongs 9. Mounted on the spindle is a member consisting of two semicircular plates 10 hinged together by a pin 2 and adapted to be adjusted angularly by links 12 connecting them to a collar 11 which can be adjusted along the spindle and secured by a screw 13. Pivoted to the lower end of the frame is a shank 19, and pivoted to the upper part of the frame is a shank 15, carrying a collar 17 having a projection 18 engaging the shank 19; the collar 17 is adjustable along the shank 15 and can be secured by a screw 20. The shank 15 carries a pen &c. 21. A spring 16 presses the shanks 15, 19 together and also maintains the shank 19 in engagement with the edge of the member 10.
GB1007324A 1924-04-23 1924-04-23 Improvements in instruments for drawing ellipses Expired GB225119A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE1921Z0012505 DE405804C (en) 1924-04-23 1921-08-02 Elliptical circle
FR552097D FR552097A (en) 1924-04-23 1922-05-26 Instrument for drawing ellipses
GB1007324A GB225119A (en) 1924-04-23 1924-04-23 Improvements in instruments for drawing ellipses
CH111376D CH111376A (en) 1924-04-23 1924-05-20 Instrument for plotting ellipses.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1007324A GB225119A (en) 1924-04-23 1924-04-23 Improvements in instruments for drawing ellipses

Publications (1)

Publication Number Publication Date
GB225119A true GB225119A (en) 1924-11-27

Family

ID=9960949

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1007324A Expired GB225119A (en) 1924-04-23 1924-04-23 Improvements in instruments for drawing ellipses

Country Status (4)

Country Link
CH (1) CH111376A (en)
DE (1) DE405804C (en)
FR (1) FR552097A (en)
GB (1) GB225119A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4567662A (en) * 1983-08-30 1986-02-04 Peter Wallner Device for drawing ellipses

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4567662A (en) * 1983-08-30 1986-02-04 Peter Wallner Device for drawing ellipses

Also Published As

Publication number Publication date
CH111376A (en) 1925-08-01
DE405804C (en) 1924-11-11
FR552097A (en) 1923-04-23

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