US1411493A - Ellipsograph - Google Patents

Ellipsograph Download PDF

Info

Publication number
US1411493A
US1411493A US451359A US45135921A US1411493A US 1411493 A US1411493 A US 1411493A US 451359 A US451359 A US 451359A US 45135921 A US45135921 A US 45135921A US 1411493 A US1411493 A US 1411493A
Authority
US
United States
Prior art keywords
string
shank
ellipse
tubular
compasses
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 - Lifetime
Application number
US451359A
Other languages
English (en)
Inventor
Hardt Johann
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
Priority to GB36045/20A priority patent/GB176915A/en
Priority to FR529703D priority patent/FR529703A/fr
Application filed by Individual filed Critical Individual
Priority to US451359A priority patent/US1411493A/en
Application granted granted Critical
Publication of US1411493A publication Critical patent/US1411493A/en
Priority to NL30707A priority patent/NL17499C/xx
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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

Definitions

  • This invention relates to ellipsographs oi that type in which the ellipse is drawn with the aid of a string whose ends are fixed at the points where the foci of the ellipse are situated.
  • a full ellipse can be drawn with the pencil as the string used is of a length which is equal to the sum of the radii vectors plus the distance between the two foci, its two ends being attached to one of the points of the compasses, the other point of the compasses being inserted in the loop formed by the string.
  • the shanks of the compasses are preferably made of telescopically adjustable parts and provided with guide pieces for the string so that when the movable parts of the shanks are pushed into the fixed part the string is shortened automatically. This shortening of the string is necessary as the distance between the points of the compasses becomes shorter, with the same angular post tion of the shanks, ii said shanks are shortened.
  • Fig. 1 shows the improved ellipsograph, one shank in elevation and the other shank in section, the shanks being pulled out to their full length.
  • Fig. 2 is a similar view. the shanks of the compasses being shortened.
  • the shanks l and 2 of the compasses which are pivotable around a pivot pin 3 are tubular.
  • the tubular part 4: telescoped in the shank 1 carries the fired point In Specification of Letters Patent.
  • axle 8 is revolubly mounted in the upper end of the tubular shank 1.
  • a grooved pulley 9 is keyed upon the axle 8.
  • a hand wheel 10 fixed upon the projecting end of axle 8 serves for revolving said axle.
  • a guide piece 11 for the string is arranged which is adapted to slide in a guide slot 12 of the tubular part 4 when this tubular part is pushed upwards in the shank 1.
  • a second guide piece 13 for the string is provided at the upper end of the tubular part 1.
  • One end of the string is attached to the groovedpulley 9 and the string. conducted through the guide pieces 11 and 18, comes out of the tubular part 4: at'lt to be further conducted through the eye 15 of the point 5 to form a loop.
  • the second end of the string is conducted back through the eye 15 of the point 5 and attached to the ring 16 provided at the lower end of the tubular part 4.
  • the point 7 or" the compasses is inside the loop formed by the string as shown in F 2.
  • This point 7 has a laterally projecting guide pin 18 for the string.
  • the length of the string is regulated by means of the hand wheel 10 so that the length of the part of the string which forms the loop is equal to the sum of radii vectors of one focus of the ellipse plus the distance between the two foci of the ellipse.
  • the compasses are adjusted so that the points can be stuck into the foci of the ellipse, the point 7 being situated inside the loop of the string.
  • the string is now stretched as usual with the aid of a pencil 19.
  • the end of the string which is attached to the ring 16 could be fixed to the pulley 9 after having been conducted through the guide pieces 13 and li In this case the string would be shortened for double the length for which it is shortened otherwise when theparts t, 6 of the shanks are pushed up into the tubular shanks 1, 2.
  • An ellipsograph of the type in which a string is used for drawing the ellipse comprising in combination two, shanks pivotally connected at their upper ends composedeach of an upper tubular part and a lower tubular part telescoped in said upper tubular pa rt,
  • An ellipsograph of the type in whic a string is used for drawing the ellipse comprising in combination a shank consisting of an upper tubular part, of a loweritubular part telesooped in said upper part, the lower part having a guide slot in one side and a point fixed in the lower end and having an eye, a second shank composed of an upper tubular part, a lower tubular parttelescoped in said upper part, a point fixed in said lower part, a pin ivotally connecting the upperends of said s anks, an axle revolubly mounted in the upper end not the first mentioned shank so that one of its ends projects from the wall of the shank, a hand wheel upon said projectin' end.

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)
US451359A 1920-12-15 1921-03-10 Ellipsograph Expired - Lifetime US1411493A (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
US1411493A true US1411493A (en) 1922-04-04

Family

ID=40394418

Family Applications (1)

Application Number Title Priority Date Filing Date
US451359A Expired - Lifetime US1411493A (en) 1920-12-15 1921-03-10 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
GB176915A (en) 1922-03-23
FR529703A (fr) 1921-12-05
NL17499C (en(2012)) 1927-07-15
CH90494A (de) 1921-09-01
DE346074C (en(2012)) 1921-12-23

Similar Documents

Publication Publication Date Title
US1411493A (en) Ellipsograph
US2206605A (en) Former for garments
US1269014A (en) Double-ended crochet-hook and shield.
US1368665A (en) Clasp
US1276122A (en) Nose-ring.
US1724738A (en) Ellipsograph
US171890A (en) Improvement in line-fasteners
US980730A (en) Combined compass and tape-line.
US1054026A (en) Umbrella-stick.
US1789765A (en) Clothesline-prop holder
US389577A (en) Half to the ceaighead
US1490924A (en) Folding umbrella
GB1133512A (en) Improvements in or relating to umbrellas
US802010A (en) Needle.
US1275979A (en) Compasses.
US728004A (en) Parcel-carrier.
US374561A (en) sibley
US1565563A (en) Buckle
US2366000A (en) Compass
US177197A (en) Improvement in button-hooks
US1715527A (en) Automobile head lamp
US123486A (en) Improvement in pencil-cases
US1431654A (en) Compasses for drawing oviform curves
US2058438A (en) Film reel
GB158482A (en) Improvements in or relating to sword sticks, dagger-sticks or like weapons