US2089757A - Drawing apparatus - Google Patents

Drawing apparatus Download PDF

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Publication number
US2089757A
US2089757A US73778A US7377836A US2089757A US 2089757 A US2089757 A US 2089757A US 73778 A US73778 A US 73778A US 7377836 A US7377836 A US 7377836A US 2089757 A US2089757 A US 2089757A
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US
United States
Prior art keywords
rule
slide
board
guide
movable
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
US73778A
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English (en)
Inventor
Nieuwkamp Jan
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Individual
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Individual
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Publication date
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Publication of US2089757A publication Critical patent/US2089757A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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
    • B43L13/04—Guides for rulers

Definitions

  • This invention relates to a drawing apparatus consisting of a drawing board with one or more T squares or rule-s movable parallel to themselves over the board.
  • Drawing appliances are known in which a vertioal rule is provided adapted to be moved parallel to itself and connected to a horizontal rule, and the latter is itself arranged to move parallel to itself in a vertical guide attached to the board.
  • a vertioal rule is provided adapted to be moved parallel to itself and connected to a horizontal rule, and the latter is itself arranged to move parallel to itself in a vertical guide attached to the board.
  • verniers have sometimes been used.
  • the disadvantages oi this is that the rules have to be adjusted by the eye, which if carried on Y for a long time becomes very fatiguing and takes up a comparatively large amount of time, particularly when great accuracy (obtained by means of the Vernier) is necessary.
  • the drawing board is provided with one or more straight guides each ⁇ of which has a longitudinal row of holes, notches or sto-ps at distances apart corresponding to the usual unit of length (e. g. one centimetre or one inch), while each rule is coupled to a slide which for its parallel movement can be caused to coi-operate with lone or the other of the straight guides and has a row of movable pins, stops or the like, the distance apart of which is a whole multiple of the particular unit of length minus a fractional part thereof (e. g. 0.9 of 1.9 centimetres, or 7/8ths, or one and 'VSths of an inch)
  • These pins or the like can each .be introduced into one of the holes or the like in the corresponding guide for the purpose of adjusting the rule.
  • the rule can be adjusted in -any position which corresponds to a scale division on the scale provided. If a millimetre scale be used for example the rule can be secured in positions 1 millimetre apart. To enable the rule to be set in intermediate positions also, a micrometer screw may be used by means of which the rule can be moved relatively to the attached slide within a range of at least 1 millimetre.
  • the guide however, may also be made longitudinally movable relatively to the board by means ⁇ of a ymicrometer screw.
  • a rule with lozenge-shaped holes for example, all spaced apart longitudinally of the rule, 1 mm.
  • the slide of they rule may be provided with two or more rows of movable pins, stops or the like, the pins of one row being staggered with regard tothe pins'in the other row or rows and at ⁇ a distance which amounts to the half, a third, a' fourthv etc. of the distance between Ytwo scale divisions e.'g. of a millimetre, according as two, three, four etc. rows are provided.
  • Fig. l is a plan View of a drawing apparatus according to the present invention.
  • Fig. 2 is afront view of this apparatus'.
  • Fig. 3 is a plan View, on a larger scale, of a rule slide with movable pins and micrometer screw.
  • Fig. 4 is a section on the line IV-IV of Fig. 3.
  • Fig. 5 is a section on the line V-V of Fig. 3.
  • Fig. 6 is a longitudinal section of a differently constructed rule slide and of a movable guide bar .with iine adjustment.
  • Fig. ⁇ 7 is a cross section on the line VII--VII of Fig. 6.
  • Fig.v 8 is another constructional form of the rule slide with a specially large pitch of the pms.
  • Fig. 9 is a section 4on the line IX--IX of Fig. 8.
  • Fig. 10 shows a portion of a rule with lozenge shaped holes.
  • Figjll' is a diagram of a rule slide with two rows of pins arranged in staggered relationship to one another.
  • Fig. 12 is a plan view of another constructional form of a simple drawing apparatus according to the present invention.
  • Fig. 13 is a section, onan enlarged scale, on the line XIII-XIII of Fig. 12.
  • Fig. 14 sho-ws a pin with a bayonet joint.
  • Fig. 15 shows a detail of the apparatus shown in. Fig. 12, and
  • Fig.' 16 shows an arrangement for indicating angular or straight Yline movements of the horizontal or vertical rule.
  • I is a drawing board, 2 a hori.
  • zontal rule which is movable parallel to itself by means of a slide 3 in a guide groove 4 in the board I.
  • a guide groove 4 At the lower edge of the board I there is a similar guide groove 5 at right angles to the groove 4.
  • the rule can therefore be placed either vertically (see the position indicated by' dot and dash lines) or horizontally on the board.
  • Each pin B has a longitudinal groove I in it into which a pin II rigidly secured in the slide 3 projects.
  • the rule 2 is adjustable relatively to the slide 3 by means of a micrometer screw adjusting device I2.
  • the rule 2 and the slide engage in each other by means of grooves I3 parallel with the guide i and keys I4, and there is provided on the slide a small block I acting as a bearing for a screw I'I, which co-operates with a nut I 6 mounted on the rule and can be rotated by means of a lever I8.
  • a spring I9 takes up any clearance of the screw in its nut.
  • the pitch of the screw is 2 mm. If therefore, the lever i0 be turned through an angle of 180, the rule will be moved one millimetre relatively to its slide.
  • the lever I8 has a spring pawl 20 movable over a segment, which embraces 180 and is provided with notches arranged at angular distances of 18 each.
  • the micrometer screw device increases therefore the accuracy of the adjustment of the rule to 0.1 mm.
  • the pitch of the holes 5 will be 1/2 for example, While that of the pins may be ths of an inch.
  • the micrometer screw may then be made with a pitch of 1/th of an inch and the segment may have notches in it at angular distances of 221/2 each or lll/4 each whereby an accuracy of 1/128th of an inch or l/256th of an inch can be obtained.
  • the board I may be provided with a turntable 22 which is sunk therein and on which the paper can be stretched.
  • the turntable 22 can be locked or released by means of an excentric clamp 23a, and a lever 23'.
  • the rule 2 will be simultaneously slightly raised by a yoke 25 connected by means of the rod 24 to the lever 23, 'so that the paper can be freelyrotated. It is then not necessary' to move the rule over every time from the horizontal into the vertical position; all that is needed is to turn the drawing paper through an angle of 90.
  • This arrangement makes it possible to draw more quickly than whenthe ruler has always to be removed from the groove 4 ⁇ and placed in the groove 5 or vice versa.
  • plugs 26 In the corners of the board I are provided plugs 26 to which the paper can be attached by means of an adhesive, so that no drawing pins need be used.
  • the turntable 22 may also be provided with such plugs 26.
  • holds the rod 2l' up against the screw 3U and keeps this latter pressed up against the internal screw thread while it also prevents the bar from rotating.
  • the screw 30 can be rotated by means of a lever I8 which co-operates by means of a spring pawl with the segment 2I.
  • the small block 28 has a conical pivot pin 32, which ts into a corresponding hole in the board.
  • the rule 2 and the slide 3 can be very simply provided with a shading or hatching device.
  • the rule 2 is attached for example to the slide 3 so as to be movable transversely thereto and is provided with a set screw whereby the rule is either locked to the slide or an amount of play is provided between the two corresponding to the distance between the lines of the shading.
  • a small block which rests on the board and fits into a slot in; the slide with a certain amount of longitudinal play therein can be provided, in which case the slide and the rule can be rigidly connected to one another.
  • the slide 3 shown in Figs. 8 and 9 is provided with ten pins 8 which are distant from each other a greater distance (e. g. 1.9 om.) than those in the above described constructional forms.
  • Its guide 3d itself forms a rule, for which a second straight line guide (not shown), attached to the board is provided.
  • the slide (not shown) between the guide 34 which is constructed to act as a rule and the second guide may also be provided with a micrometer screw for the iine adjustment.
  • the rule 2 is pivoted by means of a screw 35 and a nut 36 to a plate 3l, which is adjustably connected to the slide 3 by means of a micrometer screw arrangement I2 and a dovetail connection I3, I4. This slide is connected by a dovetail connection to the guide or rule 3d.
  • the rule 2 may be made of transparent material and constructed as shown in Fig. 10.
  • the ruler is provided over its whole. length with transverse rows of lozenge shaped holes 39 which are ,of such dimensions that they will just allow the point of a pencil to pass through them.
  • the lozenge shape is very favourable for the purpose of centering the pencil.
  • the distance apart (measured longitudinally of the rule) of the holes 39 in the Vsame transverse c row is 1 mm. so that parallel lines 1 millimetre apart can be drawn.
  • the rule may again be pivotally attachedto its plate (31) and be provided with a protractor or transporter 4
  • the rule slide may be provided with two 'or more rows of pins and the pins in one row may be staggered relatively to the pins in the ⁇ other row by a fractional part of a millimetre. If two ⁇ or three rows of pins are used ('see Fig. ll) these must ⁇ be staggered by half a millimetre and one third of a millimetro respectively.
  • the holes 6 of the two rows in the guide must however then lie exactly opposite each other. It is obvious that on the other hand the holes in the rows may be staggered-and the pins be arranged exactly opposite each other.
  • holes 6 grooves may also be provided in the guide and may run either at right angles to or longitudinally of the guide or at an angle thereto.
  • FIG. l2 A particularly simple and convenient drawing apparatus is shown in Fig. l2.
  • which is provided longitudinally with a comparativey wide dovetail groove 42 y(see Fig. 13).
  • a comparativey wide dovetail groove 42 y At the bottom of this groove are drilled holes 43 at equal distances from one another, say l om. for example, and tting in theseV holes are metal bushes 44 each having a conical hole.
  • the groove 42 works a comparatively short slide 45, 30 to 40 cm. long for example, which acts itself as a guide for a rule slide 46. The latter is constructed and co-operates with the slide 45 in the manner already described.
  • the slide 45 has a conical pin 41 which is adapted to ⁇ iit into each of the conical bushings 44 and can be pressed downwards by means of a spring 48 (see Fig. Under normal conditions the slide 45 is therefore connected to the rule 4
  • Each 'pin 53 of the slide 46 is pro-vided with a T groove 54 (see Fig. 14) into which a stationary pin 53a. on the slide 46 enters, so that it can .be
  • the vertical rule -2 Vis connected pivotally to the vslide 46 by a pin 55, which runs parallel with the ⁇ drawing surface and forms both with the hhorizontal rule 4
  • the rule 2 is provided at its free end with an arrangement 56 (see Figs. l2 and 16) which indicates the parallel or angular movements of this end.
  • this arrangement has a small wheel 51 which rolls over the paper and rotates about a pin 58 parallel with the rule 2.
  • the movements of this wheel 51 are magniiied by suitable gearing and transmitted to a pointer 58a. which indicates the magnitude of the particular movement in millimetres and in degrees on a dial which is situated on the top of the casing 59 of the arrangement 56.
  • the length of the rule 2 between its fulcrum 36 and the Wheel 51 is so selected for example that a parallel movement of one millimetre corresponds to an angular movement of the pointer of 1.
  • the said slide is coupled to a string attached to the board at 6
  • the string can be -rmly connected with the block 65 and therefore with the slide 46. If the slide 46 be then moved to and fro, the ruler 4
  • Drawing apparatus comprising in combination, a drawing board, a rule movable over the board in parallel relation with itself, guide means associated with the board, a longitudinal row of recesses provided in the guide means at equal distances apart corresponding to a conventional unit of length, a slide coupled to said rule and adapted to be brought into cooperation with said guide means, and movable projecting members provided in said slide and equally spaced apart a whole number of the said units of length minus a fractional part thereof, each of said projecting members being adapted to engage With any one of the recesses in said guide means so as to thereby fix the position of the rule in relation to the drawing board.
  • Drawing apparatus comprising in combination, a drawing board, a rule movable over the board in parallel relation with itself, a straight guide associated with the board, a longitudinal row of recesses provided in the straight guide at equal distances apart corresponding to a conventional unit of length, a slide movably and adjustably coupled to said rule an-d adapted to be brought into cooperation with said straight guide, movable projecting members provided in said slide at equal distances apart corresponding to' a Whole number of said units of length minus a fractional ⁇ part thereof, each of said members being adapted to engage with any one of the recesses in the straight guide so as to thereby x ⁇ the position of the rule in relation to the board,
  • Drawing apparatus comprising in combination, a drawing board, a rule movable over the board in parallel relation with itself, a straight guide movably associated with the board, a longitudinal row of recesses provided in the straight guide at equal distances apart corresponding to a conventional unit of length, a slide coupled to said rule and adapted to be brought into cooperation with said straight guide, movable projecting members provided in said slide, at equal distances apart corresponding to a whole number of said units of length minus a fractional part thereof, each of said members being adapted to engage with any one of the recesses in the straight guide so as to thereby x the position of the rule in relation to the board, and a micrometer screw for longitudinally displacing and adjusting said straight guide with relation to the drawing board through a distance at least equal to the said fractional part.
  • Drawing apparatus comprising in combination, a drawing board, a rule movable over the board in parallel relation with itself, two straight guides, of which the rst is associated with the board and the second is constructed itself as a rule, a longitudinal row of recesses provided in each of the straight guides at equal distances apart corresponding to a conventionaly unit of length, two slides, of which the one is coupled to the rule and adapted to be brought into cooperation with the said second straight guide, and the other is coupled to the said second straight guide and adapted to be brought into cooperation with the said iirst straight guide, and movable projecting members provided in each of said slides at equal distances apart each amounting to a whole number of said units of length minus a fractional part thereof, each of said projecting members being adapted to engage with any one of the recesses in the corresponding straight guide so as to thereby fix the position of the rule in relation to the drawing board.
  • Drawing apparatus comprising in combination, a drawing board, a rule movable over the board in parallel relation with itself, a straight guide associated with the board, a longitudinal row of recesses provided in the straight guide at equal distances apart corresponding to a. conventional unit of length, a slide adapted to be brought into cooperation with said straight guide,
  • connection including a pivot pin which runs parallel with the drawing plane and makes with the rule an angle of 45, and movable projecting members provided in said slide at equal distances apart each amounting to a whole number of said units of length minus a fractional part thereof, each of said projecting members being adapted to engage with any one of the recesses in said straight guide so as to thereby iix the position of the rule in relation to the drawing board.
  • Drawing apparatus comprising in combination, a drawing board, a rule movable over the board in parallel relation with itself, a straight guide associated with the board, a number of longitudinal rows of recesses provided in the straight guide at equal distances apart, which in each row correspond to a conventional unit of length, so that the recesses in all the rows lie opposite each other, a slide coupled to said rule and adapted to be brought into cooperation with the straight guide, and a number of rows of movable projecting members equal to the number of rows of recesses provided in said slide at equal distances apart, which in each row correspond to a whole number of said units of length minus a fractional part thereof, the projecting members in one row being staggered with relation toone provided with a plurality of spaced recesses, and movable projecting members arranged on said slide member, each of said projecting members being adapted to engage any one of the recesses in said guide means for locking the rule in predetermined position on the drawing'board.
US73778A 1935-10-04 1936-04-10 Drawing apparatus Expired - Lifetime US2089757A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2089757X 1935-10-04
GB6481/36A GB453405A (en) 1935-10-04 1936-03-03 Drawing apparatus

Publications (1)

Publication Number Publication Date
US2089757A true US2089757A (en) 1937-08-10

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US73778A Expired - Lifetime US2089757A (en) 1935-10-04 1936-04-10 Drawing apparatus

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US (1) US2089757A (fr)
DE (1) DE668315C (fr)
FR (1) FR802990A (fr)
GB (1) GB453405A (fr)
NL (1) NL42662C (fr)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2501296A (en) * 1947-05-08 1950-03-21 Tyler Charles Drawing board and tau-square combination
US2845713A (en) * 1955-07-29 1958-08-05 Thomas W Macaulay Glass cutting tables
US2876543A (en) * 1954-03-23 1959-03-10 Kooperativa Foerbundet A device for determining measures of division by means of an additional scale
US2879597A (en) * 1957-04-22 1959-03-31 Gadget Of The Month Club Inc Adjustable drafting sectioning instrument
US2936524A (en) * 1958-07-24 1960-05-17 Earl J Shaffer Drafting machine
US3284903A (en) * 1963-11-22 1966-11-15 Sangamo Weston Instruments for measuring recorded traces
US3510081A (en) * 1968-01-18 1970-05-05 Roy J Anderson Drafting board with sheet feed control
US3638322A (en) * 1969-12-23 1972-02-01 Elmer Harold Cunningham Guidebar
US3688409A (en) * 1969-11-04 1972-09-05 May B Rogers I-square and guide means for drafting
US3930314A (en) * 1973-09-24 1976-01-06 Andrzej Tomasz Iwanicki Drafting machine
US4067112A (en) * 1976-10-26 1978-01-10 Cox Melvin L Cutting guide for custom mats
US4965935A (en) * 1989-06-05 1990-10-30 Bourque Roger Z Tile cutting table
US5845409A (en) * 1994-06-21 1998-12-08 Kimoto; Masao Drawing board
US6691972B1 (en) * 2003-02-05 2004-02-17 William E. Oliver Adjustable handrest for artists
GB2433026A (en) * 2005-12-07 2007-06-13 Martin Charles Reed Stamp positioner
US20070169363A1 (en) * 2006-01-20 2007-07-26 Stravitz David M Crafting and graphics instruments
US20080272249A1 (en) * 2007-05-02 2008-11-06 Mantelli Anthony P Artist assistive device
CN105216488A (zh) * 2015-10-25 2016-01-06 济南大学 现场测绘用具组合的应用
CN105216489A (zh) * 2015-10-25 2016-01-06 济南大学 现场测绘用具组合
CN110525093A (zh) * 2019-09-24 2019-12-03 徐州工程学院 可调间距划线尺

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1982880U (de) * 1967-11-20 1968-04-04 Ulrich Hebel Zeichenunterlage mit versenkter blattklemmschiene und mit in nuten gefuehrter zeichenschiene zum wechselweisen zeichnen der waagerechten und senkrechten linien.

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2501296A (en) * 1947-05-08 1950-03-21 Tyler Charles Drawing board and tau-square combination
US2876543A (en) * 1954-03-23 1959-03-10 Kooperativa Foerbundet A device for determining measures of division by means of an additional scale
US2845713A (en) * 1955-07-29 1958-08-05 Thomas W Macaulay Glass cutting tables
US2879597A (en) * 1957-04-22 1959-03-31 Gadget Of The Month Club Inc Adjustable drafting sectioning instrument
US2936524A (en) * 1958-07-24 1960-05-17 Earl J Shaffer Drafting machine
US3284903A (en) * 1963-11-22 1966-11-15 Sangamo Weston Instruments for measuring recorded traces
US3510081A (en) * 1968-01-18 1970-05-05 Roy J Anderson Drafting board with sheet feed control
US3688409A (en) * 1969-11-04 1972-09-05 May B Rogers I-square and guide means for drafting
US3638322A (en) * 1969-12-23 1972-02-01 Elmer Harold Cunningham Guidebar
US3930314A (en) * 1973-09-24 1976-01-06 Andrzej Tomasz Iwanicki Drafting machine
US4067112A (en) * 1976-10-26 1978-01-10 Cox Melvin L Cutting guide for custom mats
US4965935A (en) * 1989-06-05 1990-10-30 Bourque Roger Z Tile cutting table
US5845409A (en) * 1994-06-21 1998-12-08 Kimoto; Masao Drawing board
US6691972B1 (en) * 2003-02-05 2004-02-17 William E. Oliver Adjustable handrest for artists
GB2433026A (en) * 2005-12-07 2007-06-13 Martin Charles Reed Stamp positioner
US20070169363A1 (en) * 2006-01-20 2007-07-26 Stravitz David M Crafting and graphics instruments
US7484308B2 (en) 2006-01-20 2009-02-03 Stravitz David M Crafting and graphics instruments
US20080272249A1 (en) * 2007-05-02 2008-11-06 Mantelli Anthony P Artist assistive device
US7694931B2 (en) * 2007-05-02 2010-04-13 Mantelli Anthony P Artist assistive device
CN105216488A (zh) * 2015-10-25 2016-01-06 济南大学 现场测绘用具组合的应用
CN105216489A (zh) * 2015-10-25 2016-01-06 济南大学 现场测绘用具组合
CN110525093A (zh) * 2019-09-24 2019-12-03 徐州工程学院 可调间距划线尺

Also Published As

Publication number Publication date
GB453405A (en) 1936-09-10
NL42662C (fr) 1938-03-15
DE668315C (de) 1938-12-01
FR802990A (fr) 1936-09-19

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