GB187031A - Instrument for drawing oviform curves - Google Patents

Instrument for drawing oviform curves

Info

Publication number
GB187031A
GB187031A GB19061/21A GB1906121A GB187031A GB 187031 A GB187031 A GB 187031A GB 19061/21 A GB19061/21 A GB 19061/21A GB 1906121 A GB1906121 A GB 1906121A GB 187031 A GB187031 A GB 187031A
Authority
GB
United Kingdom
Prior art keywords
leg
string
instrument
sleeve
points
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
GB19061/21A
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 DE1920346077D priority Critical patent/DE346077C/de
Priority to CH96192D priority patent/CH96192A/en
Priority to FR539352D priority patent/FR539352A/en
Application filed by Individual filed Critical Individual
Priority to GB19061/21A priority patent/GB187031A/en
Publication of GB187031A publication Critical patent/GB187031A/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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/48—Sulfur dioxide; Sulfurous acid
    • C01B17/50—Preparation of sulfur dioxide
    • C01B17/54—Preparation of sulfur dioxide by burning elemental sulfur

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Toys (AREA)

Abstract

187,031. Sobawa, J., and Hardt, J. July 14, 1921. No Patent granted (Sealing fee not paid). Ellipsographs.- An instrument for describing ovals comprises a compass-like device of which one leg 1 terminates in a point 2 having an eye through which are passed the ends 3, 4 of a string, these ends being secured to a sleeve 5 which can be adjusted along the leg. Mounted on the other leg 7 is a slidable sleeve 8 to which are pivoted two similar arms 11 terminating in points 15. The arms 11 are articulated by links 12 to the lower end 13 of the leg 7 so that the distance between the points 15 can be varied by adjusting the sleeve 8. The string passes beneath guides 14 on the legs 11, and the required curve is drawn by passing a pencil 16 around the loop of the string.
GB19061/21A 1920-12-15 1921-07-14 Instrument for drawing oviform curves Expired GB187031A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE1920346077D DE346077C (en) 1920-12-15 1920-12-15
CH96192D CH96192A (en) 1920-12-15 1921-05-11 Compasses for drawing egg-shaped curves.
FR539352D FR539352A (en) 1920-12-15 1921-05-21 Compass for plotting oval curves
GB19061/21A GB187031A (en) 1920-12-15 1921-07-14 Instrument for drawing oviform curves

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE346077T 1920-12-15
CH96192T 1921-05-11
FR539352T 1921-05-21
GB19061/21A GB187031A (en) 1920-12-15 1921-07-14 Instrument for drawing oviform curves

Publications (1)

Publication Number Publication Date
GB187031A true GB187031A (en) 1922-10-16

Family

ID=10123097

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19061/21A Expired GB187031A (en) 1920-12-15 1921-07-14 Instrument for drawing oviform curves

Country Status (4)

Country Link
CH (1) CH96192A (en)
DE (1) DE346077C (en)
FR (1) FR539352A (en)
GB (1) GB187031A (en)

Also Published As

Publication number Publication date
CH96192A (en) 1922-09-16
FR539352A (en) 1922-06-24
DE346077C (en) 1921-12-23

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