Classifications

• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
  • G01B3/00—Measuring instruments characterised by the use of mechanical techniques
  • G01B3/12—Measuring wheels
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
  • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
  • B25H7/00—Marking-out or setting-out work
  • B25H7/02—Plates having a flat surface
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
  • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
  • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
  • B41M3/02—Maps; Sea or meteorological charts

Definitions

• This invention relates to an auxiliary device for making maps and drawings, which is movable on said drawings and maps and furnished with a measuring device, by means of which it measures from the surface the distance it has been moved and its location.
• the invention makes it possible to use the device, also as an auxiliary drawing instrument, beside measuring .
• a measuring device which can be moved over drawings and maps and which leans only against the map or a corresponding surface.
• This device has rollers, by means of which it is moved steadily and reliably with good retracing accuracy on the surface. It also has an articulated arm, by means of which required points can be reached on the area surrounding the path of the measuring trolley.
• the measuring coordinates of the measuring trolley are stored in the map coordinates, for instance when tracing two coordinate intersections on the map, the location of which is stored in the measuring device. Thereafter, the measuring device indicates coordinates of required points on the map, the distance between them or areas while the reading part of the device is moved over the corresponding points.
• the disadvantage of above devices is the difficulty to mark points on the map.
• Fig. 1 is a movable measuring device
• Fig. 2 is a positioning loupe in the measuring device
• Fig. 3 is a marking device
• Fig. 4 is a cross-section of the measuring device
• Fig. 5 is an arm with a movable measuring device
• Fig. 6 is an arm with a rotatable measuring device
• Figure 1 shows the auxiliary device 1, furnished with electronic measuring equipment and a display field and move- able on a map or a drawing.
• the display and keyboard unit 3 is placed at rollers 4, where also the most weight of the device is concentrated. Both rollers 4 are fixed to the same stiff axle and so the device can move only along one track on the map.
• the device has an arm 2 with sensitive articulation, by pulling of which the device is moved.
• the arm has pull ⁇ ing knob 6 and a transparent disc 5 with a positioning hole 7. By moving the arm 2, the positioning hole is centered on a certain point on the map.
• the device Before starting measurings, the device must be fastened on the map or the drawing by finding for the positioning hole two points, the coordinates or measuring values of which are in the memory of the measuring device at said points. From the operation area of the device, the coordinates of required points, line lengthes, areas of curves and patterns can be defined by moving the positioning hole over points needed for measuring.
• FIG. 2 shows a loupe 18.
• the loupe is placed on disc 5 in the seating in arm 2.
• Figure 3 shows a marking device 8 exchangeable with the loupe and furnished with a marking needle.
• the marking needle On pushing button 11 the marking needle moves down in its bushing and makes a mark on the map/drawing. The mark hits the same point as the centre of the positioning hole 7.
• Figure 4 shows a cross-section of marking device exchange ⁇ able with loupe 5 and furnished with a marking needle 14.
• a pen or a corresponding drawing instru ⁇ ment or a stamp can be used for mark making on the map/ drawing.
• the mark can be, of course, a dot, a small circle, a cross or another special mark.
• Needle 14 as per figure 4 is moved up in its bushing 10 by spring 12.
• the spring is in a cylinder 9 which also prevents spring and needle from moving too high.
• the lower part of bushing 10 of needle 14 is supported by part 13.
• the center hole 7 of transparent disc 5 has a greater diameter than needle 14.
• the capacities of the4 measuring device 1 can also be made use of in drawing certain points or marks or lines.
• the marking means can, of course, be of such type that it can be used for positioning at a known point. This requires that the matching of needle or pen together with a certain point can be seen by the eye. Then, for instance, some part of device 8 can be transparent or have holes.
• Figure 5 shows an embidoment example of movable marking means 15 fixed to arm 2. It can be moved along the slides underside the arm so that marking instruments 16 or 17 match with positioning hole 7.
• Marking instrument 16 is a needle and 17 a shablon.
• Loupe 18 can be used when placed in the seating in arm 2 but, generally, it has to be taken off during marking.
• the marking device 8 in figure 3 can be used when placed in the seating in arm 2.
• Disc 5 with its circular hole 7 can be replaced with the hole in part 15 when matched with together the center of the seating in arm 2.
• Figure 6 shows a shablon disc 20 fixed on the underside of arm 2 and rotatable in axle 19. By rotating it is possible to match the different patterns in shablon 20 together with the center of the seating, whereby the centers of shablon-made marks can also match exactly together with the center of the positioning hole 7.
• disc 5 in the seating is not essential, since any mark in the shablon can be used as positioning means.
• a sticker-fixing device or a device that burns the marks in the map/drawing or a combination of a shablon and a drawing instrument can be used as marking means.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Ocean & Marine Engineering (AREA)
• A Measuring Device Byusing Mechanical Method (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=8531122

Family Applications (1)

Country Status (3)

Cited By (2)

Citations (3)

• 1990
  • 1990-09-27 FI FI904746A patent/FI904746A/fi not_active Application Discontinuation
• 1991
  • 1991-09-26 WO PCT/FI1991/000297 patent/WO1992006347A1/en unknown
  • 1991-09-26 AU AU85358/91A patent/AU8535891A/en not_active Abandoned

Patent Citations (3)

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