US3045363A - Device for teaching, particularly for the teaching of drawing - Google Patents

Device for teaching, particularly for the teaching of drawing Download PDF

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Publication number
US3045363A
US3045363A US34709A US3470960A US3045363A US 3045363 A US3045363 A US 3045363A US 34709 A US34709 A US 34709A US 3470960 A US3470960 A US 3470960A US 3045363 A US3045363 A US 3045363A
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US
United States
Prior art keywords
grid
frame
column
sleeve
wires
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
US34709A
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English (en)
Inventor
Kaestle Charles Emile
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Individual
Original Assignee
Individual
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Filing date
Publication date
Priority claimed from FR1400A external-priority patent/FR1226905A/fr
Application filed by Individual filed Critical Individual
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Publication of US3045363A publication Critical patent/US3045363A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B97/00—Furniture or accessories for furniture, not provided for in other groups of this subclass
    • A47B97/02—Devices for holding or supporting maps, drawings, or the like, including means for preventing rolling-up
    • 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
    • B43L13/14—Devices for drawing in perspective
    • B43L13/16—Devices for drawing in perspective free-hand

Definitions

  • Another object of the invention is a device enabling the pupils to evaluate immediately the value of the apparent distortion of objects, due to perspective, and consequently to reproduce rapidly and easily said distortions.
  • an object of the present invention is to provide a simple device of rugged construction, easy to manufacture, adapted to support an object which is to be drawn, while allowing the whole object to be viewed, said device further allowing the position of said object to be varied by a simple manipulation, so that the apparent distortions of the object, due to the perspective, when said object is placed at horizon level, or above said horizon level, or below the latter may be analyzed.
  • a device which comprises essentially a column, a base supporting said column in a vertical position, an object-bearer which is transparent at least in its central portion, and means for releasably attaching said object-bearer at variable heights.
  • said object-bearer is constituted by a frame comprising at least three sides, said frame being arranged to bear a grid on which the object to be drawn is placed, while one of said sides of the frame is rigidly fixed to a sleeve slidably mounted on said column.
  • said frame comprises a second grid rigidly attached thereto in a vertical position, the object to be drawn being placed behind said second grid.
  • the object is seen vertically through a regular grid, which allows the important points of the object, or model, to be accurately located and consequently allows this model to be closely reproduced by the well-known method of squaring.
  • the device may further comprise means for suspending the objects, or models, whenever the latter are suited for this method of supporting.
  • Said means preferably are constituted by a rod having a hook and being rigid with a sleeve slidably mounted on said column, said sleeve comprising means to releasably lock a sleeve to the column at any required height.
  • FIG. 1 is a perspective view of a device according to the present invention.
  • FIG. 2 is a perspective view of another embodiment of the object-bearer shown in FIG. 1.
  • FIG. 3 shows still another embodiment of said objectbearer
  • FIG. 4 is a diagrammatic view, showing the utilisation of the object-bearer according to FIG. 2.
  • the device comprises a support constituted by a sleeve 1 and four legs constituted each by a curved tube including one portion 2 substantially perpendicular with respect to the axis of sleeve 1, and one curved end portion 3, the length of which preferably is shorter, said curved portion 3 being adapted to repose on a supporting surface.
  • the horizontal portions 2 of said legs are rigidly attached to sleeve 1, e.g. by welding.
  • a vertical column 4 is slidably mounted in sleeve 1 and may be locked in the desired position by any convenient means, for instance by set screw 5. Due to this arrangement column 4 may be separated from the supporting leg assembly, which facilitates the transport .or the storing of the device.
  • An object-bearer is slidably mounted on column 4; said object-bearer is rigidly attached to a sleeve 6 coaxially and slidably mounted on the column, with a loose fit.
  • Sleeve 6 may be locked in any desired position on the column, by any convenient means such as set screw 7.
  • the object-bearer is constituted by a frame comprising a U-shaped iron rod of circular section which forms a central portion 8 rigidly connected with sleeve 6, and lateral legs 9 and 10.
  • Legs 9 and 10 may be provided with grooves allowing a plate of glass or other transparent material, such as plastic material, to be inserted between said legs, said plate being pro vided with a grid constituted by a pattern of squares placed upon said plate.
  • This grid may also be constituted, as shown in FIG. 1, by a plurality of threads or wires 11, 12, etc. attached to lateral legs 9 and 10, and by threads or wires 13, 14 perpendicular to threads 11, 12 and attached to the central portion 8 and to the outer thread or wire 12.
  • the above described device may be completed by adding a rod 15 one of the ends of which is formed with a hook 16, said rod 15 being rigidly attached to a sleeve 17 similar to sleeve 6.
  • Hook 16 may be used to suspend objects such as a pail or similar objects adapted to be suspended.
  • the object, or model, to be drawn may easily be fixed at the desired height, by sliding sleeves 6 or 17, respectively, along column 4.
  • FIG. 2 The embodiment shown in FIG. 2 is similar to the embodiment of FIG. 1, as far as the object-bearer is concerned, however the free ends of lateral legs 9 and 10 are rigidly connected each to a vertical rod 18, 19' supporting a grid similar to the grid described hereinabove with reference to FIG. 1.
  • this grid which is not subject to perspective distortion to any degree appreciable by the pupils who are placed substantially in front of the grid, will enable said pupils not only to evaluate the dimensions of the object to be drawn, but also the apparent distortions due to perspective, as indicated in FIG. 4.
  • the object to be drawn is a flower pot, and the transparent vertical gr-id allows the width of the upper end of said flower pot to be immediately evaluated, said width extending over four squares of the grid; similarly the height of the pot, as well as its width at the lower end, which corresponds to two squares of the grid, may easily be evaluated. Furthermore said grid also enables a pupil to notice that, due to perspective, the median point of the upper end of the pot is located at the point designated by numeral 21, which is separated from point 22 defining the lateral ends of the upper edge, by a distance corresponding to of the side of a square.
  • the device thus provides a materialization of the apparent distortion due to perspective.
  • the apparent distortion due to perspective of the vertical grid is perceivable to all the pupils placed within an angle of about 25 to 30 having its apex located on the column. Pupils who are obliged to be placed outside of said angle will not be able to take full advantage of the device, due to perspective distortion of the grid. Under these conditions, it is advantageous to replace the plane vertical grid surface defined by the vertical rods 18, 19, by a grid having the shape of a cylinder segment, as shown in FIG- URE 3.
  • the legs 9, of the horizontal object-bearer are constituted by a circle 74 supported and delimited by two sections 25, 26 of the generatrix of the corresponding cylinder.
  • the pupils may be placed around the object, or model, in a circle extending over about 180, each pupil viewing said object through a grid portion which is substantially free of perspective distortion, as said grid portion may be considered as defining substantially a plane perpendicular to the viewing direction of each pupil.
  • the radius of the cylinder must of course be sufliciently great, e.g. four to five times the maximum horizontal dimension of the object to be drawn.
  • an object suspended at book 16 may be viewed through the vertical grid; such suspended object may also be placed upon the horizontal grid, so as to achieve any desired position in which said object is required to be drawn.
  • a grid device for supporting an object and for aiding in the drawing of said object, the combination, with a substantially vertical column, of a substantially horizontal frame, a sleeve slidably mounted on said column and rigidly attached to the edge portion of said frame where by said frame can be moved only vertically, said frame being provided with two series of wires, the wires of each series being substantially parallel with respect to each other and perpendicular to the wires of the other series to define a first open grid, a second frame substantially perpendicular to said horizontal frame and rigidly connected to the edge portion of said horizontal frame, said second frame being also provided with two series of wires, the wires of one of said series being substantially parallel with respect to each other and perpendicular with respect to the wires of the other series to define a second open grid, whereby an object supported upon the first grid can be viewed through said first and second grids at the time time.
  • a grid device for supporting an object for the pur' pose of aiding in the drawing of said object, the combination, with a substantially vertical column, of a horizontal substantially U-shaped frame, a sleeve slidably mounted on said column and rigidly attached to the central portion of said U-shaped frame whereby said frame can be moved only vertically, the latter being provided with two series of wires, the wires of each series being substantially parallel with respect to each other and perpendicular to the wires of the other series to define a first open grid, two rods rigidly connected each to the free end of one of the substantially parallel legs of said U-shaped frame, one series of substantially parallel wires extending between said two rods, and another series of wires extending between the two outermost wires of said series of parallel wires to define a-second open grid, whereby an object supported upon the first grid can be viewed through said first and second grids at the same time.
  • a device as claimed in claim 2 further comprising a rod rigidly connected to a sleeve slidably mounted on said column and provided with locking means, whereby an object suspended from said rod can be viewed through said first grid.
  • a substantially vertical column with a substantially circular frame rigidly attached to a sleeve slidably mounted on said column wherein said frame can be moved only vertically, and a transparent grid structure constituted by a cylinder segment, said structure being rigidly connected to said frame.
  • said grid structure comprises at least one first rod in the shape of an arc of a circle and spaced vertically from said frame, and two other rods rigidly attached each to an end of said first rod, said other rods being perpendicular to the plane of said first rod, said other rods being rigidly attached to said frame and perpendicular to the latter.

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  • Toys (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
US34709A 1959-06-09 1960-06-08 Device for teaching, particularly for the teaching of drawing Expired - Lifetime US3045363A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1400A FR1226905A (fr) 1959-06-09 1959-06-09 Support combiné pour l'enseignement
FR1417A FR77328E (fr) 1959-06-09 1960-03-09 Support combiné pour l'enseignement

Publications (1)

Publication Number Publication Date
US3045363A true US3045363A (en) 1962-07-24

Family

ID=26161512

Family Applications (1)

Application Number Title Priority Date Filing Date
US34709A Expired - Lifetime US3045363A (en) 1959-06-09 1960-06-08 Device for teaching, particularly for the teaching of drawing

Country Status (4)

Country Link
US (1) US3045363A (fr)
CH (1) CH363159A (fr)
FR (1) FR77328E (fr)
GB (1) GB927941A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3434211A (en) * 1965-10-22 1969-03-25 Us Navy Satellite tracking and plotting device
US4439159A (en) * 1980-12-19 1984-03-27 Hunter James B Sketching aid

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2806617A1 (de) * 1977-02-22 1978-08-31 Edward Eugene Hatter Zeichen- und messzirkel
GB2142964B (en) * 1983-07-06 1986-07-23 Keith Vincent Crowley Temporary support device for a door, window or other frame
GB2143430A (en) * 1983-07-19 1985-02-13 Midland Metals Bases

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US156209A (en) * 1874-10-27 Improvement in perspective-drawing apparatus
US1134106A (en) * 1913-07-17 1915-04-06 Robert Henry Clarke Apparatus for gaging the position of and directing access to points within closed surfaces.
FR758595A (fr) * 1933-07-18 1934-01-19 Dispositif pour la mise au point de tous paysages, intérieurs, portraits, etc., se transformant après usage en écran protecteur du tableau ou portrait
US2263101A (en) * 1940-11-14 1941-11-18 Henry G Perry Drawing sight
GB542537A (en) * 1940-08-20 1942-01-14 Edgar Hoenig Device for use in making or copying drawings, paintings and the like

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US156209A (en) * 1874-10-27 Improvement in perspective-drawing apparatus
US1134106A (en) * 1913-07-17 1915-04-06 Robert Henry Clarke Apparatus for gaging the position of and directing access to points within closed surfaces.
FR758595A (fr) * 1933-07-18 1934-01-19 Dispositif pour la mise au point de tous paysages, intérieurs, portraits, etc., se transformant après usage en écran protecteur du tableau ou portrait
GB542537A (en) * 1940-08-20 1942-01-14 Edgar Hoenig Device for use in making or copying drawings, paintings and the like
US2263101A (en) * 1940-11-14 1941-11-18 Henry G Perry Drawing sight

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3434211A (en) * 1965-10-22 1969-03-25 Us Navy Satellite tracking and plotting device
US4439159A (en) * 1980-12-19 1984-03-27 Hunter James B Sketching aid

Also Published As

Publication number Publication date
FR77328E (fr) 1962-02-16
GB927941A (en) 1963-06-06
CH363159A (fr) 1962-07-15

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