US3374543A - Coordinatograph - Google Patents

Coordinatograph Download PDF

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Publication number
US3374543A
US3374543A US585341A US58534166A US3374543A US 3374543 A US3374543 A US 3374543A US 585341 A US585341 A US 585341A US 58534166 A US58534166 A US 58534166A US 3374543 A US3374543 A US 3374543A
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US
United States
Prior art keywords
carriage
ruler
coordinatograph
ordinate
rail
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
US585341A
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English (en)
Inventor
Bernhard R Bachmann
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.)
Haag Streit AG
Original Assignee
Haag Streit AG
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
Application filed by Haag Streit AG filed Critical Haag Streit AG
Application granted granted Critical
Publication of US3374543A publication Critical patent/US3374543A/en
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    • 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
    • B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
    • B43L13/02—Draughting machines or drawing devices for keeping parallelism

Definitions

  • ABSTRACT OF THE DISCLOSURE A coordinatograph having a carriage adjustable accordiug to rectangular coordinates, a ruler firmly attachable to the drawing table of the coordinatograph, guide means associated with said carriage and removably engaging said ruler for guiding said carriage along said ruler, and an angle-measuring instrument indicating the angle of said ruler relatively to said rectangular coordinates.
  • This invention relates to a coordinatograph comprising a carriage adjustable according to rectangular coordinates and a system adjustable according to polar coordinates attached to and displaceable as a whole with said carriage, the center of said polar system coinciding with the point adjusted according to rectangular coordinates.
  • a prior coordinatograph of this type the polar system is an integral part of the coordinatograph and cannot be removed without complete dismantling of the mechanism.
  • the coordinatograph is often used for work exclusively in rectangular coordinates, whereby the polar system hinders easy operation of the coordinatograph.
  • the center of the polar system of the prior coordinatograph coincides with the point adjusted in the rectangular coordinate system, it is impossible to shift the drawing implement of the polar system into this point adjusted in the rectangular system, whereby the drawing facilities are very much reduced.
  • the coordinatograph broadly comprises a polar system including an auxiliary polar device adjustable according to polar coordinates and removably attached to said carriage, said auxiliary device having a ruler displaceable into any desired angular position relatively to said carriage and guide means adapted for displacement along said ruler and adapted for guiding an implement of said auxiliary polar device along a line including the point adjusted in the system of rectangular coordinates.
  • the coordinatograph comprises a rail, said carriage being displaceable'along said rail, an auxiliary carriage removably placed on said rail at the side of said carriage and adapted for displacement along the rail, disengageable coupling means interconnecting said carriage and auxiliarly carriage, a ruler firmly attachable to the table of the coordinatograph, said guide means being attached to an Patented Mar. 26, 1968 angle-measuring instrument of said auxiliary carriage and removably engaging said ruler.
  • FIG. 1 is a perspective view of one embodiment of the invention and FIG. 2 is a section of the guiding carriage and supporting shaft for the same of the auxiliary carriage.
  • the coordinatograph shown in FIG. 1 has an ordinate rail 1 guided for displacement along an abscissa rail 3 by means of an abscissa carriage 2.
  • the right-hand end of the ordinate rail 1 not shown in FIG. 1 is supported on and displaceable along another rail parallel to the abscissa rail 3.
  • An ordinate carriage 4 is mounted on the ordinate rail for displacement along this rail.
  • the abscissa carriage and ordinate carriage have each a dial 5 indicating the position of the carriage relatively to the zero point of a rectangular coordinate system.
  • the ordinate carriage 4 has a support for a drawing instrument 6.
  • the parts described above are the essential parts of a classical coordinatograph allowing adjustment of the drawing instrument or of a measuring instrument replacing the same according to rectangular coordinates.
  • an auxiliary carriage 7 is mounted on the ordinate rail 1, this auxiliary carriage 7 having a shaft 8 supporting a guide carriage 9.
  • the shaft 8 is pivotably mounted in a tubular support of the carriage 7 and it is connected to the dial of an optical measuring instrument 10 for adjusting the desired angular position of the shaft 8 and carriage 9 respectively.
  • the measuring instrument 10 has a dial rotatable relatively to a fixed Vernier scale and an optical system for observation of the dial and vernier.
  • the guiding carrier 9 has rollers 11 engaging slightly inclined guiding surfaces 12 of a ruler 13, whereby the guiding carriage is guided without clearance on the ruler 13 and may be displaced along the same.
  • the ruler 13 has a suction cup 14 at each end thereof.
  • the cups 14 are connected to a suitable vacuum pump 'by means of a flexible tube extending from the one end of the rule 13 shown at the bottom in FIG. 1, whereby the ruler is firmly fixed in a predetermined position on the drawing paper attached to the table of the coordinatograph.
  • the guiding carrier 9 is pivotably mounted round a horizontal shaft 15 of the shaft 8.
  • the conical ends of the shaft 15 engage into ball bearings 16 so that the guiding carrier is rotatably mounted on the shaft 8 practically without clearance and friction.
  • the carriages 4 and 7 are coupled by means of a coupling rod 17.
  • the coupling rod 17 engages a through bore of the ordinate carriage 4 and is fixed in a clamping sleeve operable by means of a nut 18.
  • the carriage 7 has a through bore for taking up the coupling rod 17 which may 3 be fixed in this bore by one clamping screws 19. Similar clamping screws may also be used on the ordinate carriage 4 for fixing the coupling rod 17 in the bore instead of the clamping sleeve mentioned above. It is thus possible to place the auxiliary carriage .7 at the one or other side of the ordinate carriage 4, be-
  • the drawing instrument 6 mounted in the ordinate carriage 4 carries a disc 20 at its upper end having four notches 21 spaced by 90 from each other.
  • a rod 22 mounted in a radial extension of a sleeve 23 engages one of the notches 21.
  • the sleeve 23 is rotatable relatively to the drawing instrument, the angular position of the sleeve 23 and rod 22 respectively being readable on a dial 24 by means of a zero mark on the extension of sleeve 23.
  • the coordinatograph as shown in FIG. 1 is ready for drawing a line under a predetermined angle relatively to the ordinate rail. This angle is determined by the position of the ruler 13.
  • the carriages 4 and 7 are free for displacement along the ordinate rail 1.
  • the guiding carriage 9 is displaced along the ruler 13 whereby the carriages 4 and 7 coupled to each other are displaced along the ordinate rail 1 in accordance with the inclination of the ruler 13 so that the drawing instrument 6 is displaced in a direction parallel to the ruler 13.
  • the drawing instrument'6 is a burin for cutting coated drawing paper, this burin should be positioned substantially parallel to the direction of the line to be drawn.
  • This adjustment is feasible by turning the sleeve 23 to an angle equal to the angle of the ruler 13, the corresponding angle being readable on the dial 24.
  • This dial may be limited to an angular range of 90 whereby the selection of the desired quadrant is effected, by insertion of the rod 22 into the proper notch 21 of disc 20, this being possible by lifting and turning the disc 20 together with the drawing instrument which is loosely and removably inserted into a supporting sleeve of the ordinate carriage in amanner well known per se.
  • the vacuum in suction cups 14 of ruler 13 is stopped for instance by changing over an air valve, whereafter the ruler 13 may be shifted to any desired other position until 'the measuring instrument indicates the desired new angular position.
  • the dial of the measuring instrument is numbered from 0 to 360 in both directions for facilitating reading and adjustment of the desired angle by means of the optical observing equipment.
  • the ruler 13 is again firmly attached to the drawing paper by admitting vacuum to the suction cups 14. As shown in FIG.
  • the shaft 8 of the auxiliarycarriage 7 is disposed eccentrically relatively to the guiding carriage 9 and the ruler 13 respectively so that it is always possible even'for extremely small angles included between the ordinate rail 1 and the ruler 13 to displace the drawing instrument at a proper distance from the ruler, the carriage 9 and ruler 13 being symmetrical so that the carriage may be placed on the ruler in two opposite positions as desired.
  • the rotatable suspension of the guiding carriage 9 on the shaft 8 by means of a horizontal pivot shaft 15 warrants proper engagement of the carriage 9 on the ruler 13 without clearance independently of any sag of the ruler. Further, it is impossible that rotating movement is transmitted from the ruler 13 through the carriage 9 to the dial of the measuring instrument lfl when the'ruler is not in a strictly horizontal position.
  • the coupling clamp of'the ordinate carriage is opened and the coupling rod 17 is withdrawn from the ordinate carriage whereafter the auxiliary carriage is of two symmetrically located shifted to the end of the ordinate rail 1 moved from the ordinated rail 1.
  • the coordinatogr-aph as shown is not only simple in construction, but has practical advantages. As an example, itis always possible to place the vertex of an angle to be or is entirely redrawn in any point of the drawing range because the.
  • auxiliary device for determining the angle is completely spaced from the ordinate carriage and may always be placed on the one or other side of the ordinate carriage so that the latter may be brought to any of its usual end positions.
  • a coordinatograph comprising a table, carriage means adjustable according to rectangular coordinates above said table, means for exchangeably receiving a drawing instrument in said carriage means, a ruler in- Y eluding means for firmly attaching it to the table, said ruler being freely displaceable to any desired position on said table when its attaching means are inoperative,
  • a coordinatograph according to claim 1 comprising a rail, a carriage displaceable along this rail, an auxiliary carriage removably placed on said rail at the side of said carriage and adapted for displacement along the rail, disengageable coupling means interconnecting said carriage and auxiliary carriage, said guide means and anglemeasuring instrument being mounted on said auxiliary carriage.
  • a coordinatograph according to claim. 2 comprising a coupling rod, fixing means for said rod on the carriage and auxiliary carriage, said fixing means allowing alternative fixation of the coupling rod with this rod extending to the one or other side of the carriage, it being thus possible to dispose said auxiliary carriage at each side of said carriage.
  • a coordinatograph according to claim 2 comprising a supporting shaft on said auxiliary carriage, said guiding means being eccentrically attached to said supporting shaft.

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  • A Measuring Device Byusing Mechanical Method (AREA)
US585341A 1965-10-22 1966-10-10 Coordinatograph Expired - Lifetime US3374543A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH0057495 1965-10-22

Publications (1)

Publication Number Publication Date
US3374543A true US3374543A (en) 1968-03-26

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Application Number Title Priority Date Filing Date
US585341A Expired - Lifetime US3374543A (en) 1965-10-22 1966-10-10 Coordinatograph

Country Status (3)

Country Link
US (1) US3374543A (enrdf_load_stackoverflow)
JP (1) JPS521335B1 (enrdf_load_stackoverflow)
CH (1) CH464545A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200215713A1 (en) * 2019-01-08 2020-07-09 Tso Products, Llc Parallel and Square Alignment Tool

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5394834U (enrdf_load_stackoverflow) * 1976-12-28 1978-08-02
JPS53124824U (enrdf_load_stackoverflow) * 1977-03-11 1978-10-04
JPS53161833U (enrdf_load_stackoverflow) * 1977-05-23 1978-12-18
JPS59174197U (ja) * 1983-04-02 1984-11-21 株式会社　田窪工業所 物干竿受け具

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1860037A (en) * 1930-05-10 1932-05-24 Krebs Carlos Reproducing machine
US2631028A (en) * 1946-05-14 1953-03-10 Nat Cylinder Gas Co Torch cutting machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1860037A (en) * 1930-05-10 1932-05-24 Krebs Carlos Reproducing machine
US2631028A (en) * 1946-05-14 1953-03-10 Nat Cylinder Gas Co Torch cutting machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200215713A1 (en) * 2019-01-08 2020-07-09 Tso Products, Llc Parallel and Square Alignment Tool
US10843368B2 (en) * 2019-01-08 2020-11-24 Tso Products, Llc Parallel and square alignment tool

Also Published As

Publication number Publication date
JPS521335B1 (enrdf_load_stackoverflow) 1977-01-13
CH464545A (de) 1968-10-31
DE1473968A1 (de) 1969-03-13

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