GB176915A - Ellipsograph - Google Patents

Ellipsograph

Info

Publication number
GB176915A
GB176915A GB36045/20A GB3604520A GB176915A GB 176915 A GB176915 A GB 176915A GB 36045/20 A GB36045/20 A GB 36045/20A GB 3604520 A GB3604520 A GB 3604520A GB 176915 A GB176915 A GB 176915A
Authority
GB
United Kingdom
Prior art keywords
eye
string
ellipse
shanks
drawn
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
GB36045/20A
Other languages
English (en)
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 DE1920346074D priority Critical patent/DE346074C/de
Priority to CH90494D priority patent/CH90494A/de
Application filed by Individual filed Critical Individual
Priority to GB36045/20A priority patent/GB176915A/en
Priority to FR529703D priority patent/FR529703A/fr
Priority to US451359A priority patent/US1411493A/en
Publication of GB176915A publication Critical patent/GB176915A/en
Priority to NL30707A priority patent/NL17499C/xx
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
    • B43L11/045—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses with cords or like flexible elements
    • 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
    • B43L11/055—Non-circular-curve-drawing instruments for drawing conic sections for drawing ellipses with guides
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G9/00—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
    • C10G9/40—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils by indirect contact with preheated fluid other than hot combustion gases

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Catching Or Destruction (AREA)
  • Adornments (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
GB36045/20A 1920-12-15 1920-12-23 Ellipsograph Expired GB176915A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE1920346074D DE346074C (en(2012)) 1920-12-15 1920-12-15
CH90494D CH90494A (de) 1920-12-15 1920-12-20 Ellipsenzirkel.
GB36045/20A GB176915A (en) 1920-12-15 1920-12-23 Ellipsograph
FR529703D FR529703A (fr) 1920-12-15 1921-01-07 Compas à ellipse
US451359A US1411493A (en) 1920-12-15 1921-03-10 Ellipsograph
NL30707A NL17499C (en(2012)) 1920-12-15 1925-07-09

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE346074T 1920-12-15
CH90494T 1920-12-20
GB36045/20A GB176915A (en) 1920-12-15 1920-12-23 Ellipsograph
FR529703T 1921-01-07
US451359A US1411493A (en) 1920-12-15 1921-03-10 Ellipsograph
NL30707A NL17499C (en(2012)) 1920-12-15 1925-07-09

Publications (1)

Publication Number Publication Date
GB176915A true GB176915A (en) 1922-03-23

Family

ID=40394418

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36045/20A Expired GB176915A (en) 1920-12-15 1920-12-23 Ellipsograph

Country Status (6)

Country Link
US (1) US1411493A (en(2012))
CH (1) CH90494A (en(2012))
DE (1) DE346074C (en(2012))
FR (1) FR529703A (en(2012))
GB (1) GB176915A (en(2012))
NL (1) NL17499C (en(2012))

Also Published As

Publication number Publication date
FR529703A (fr) 1921-12-05
NL17499C (en(2012)) 1927-07-15
CH90494A (de) 1921-09-01
DE346074C (en(2012)) 1921-12-23
US1411493A (en) 1922-04-04

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