EP0064503A1 - Ruler with measuring memories - Google Patents

Abstract

Rule with one or more movable measurement memories, the rule (1; 25; 2, 5, 26) consisting of means of oblong lower pieces (2; 2, 2a) and above means of oblong upper pieces (3a, b; 3a, b, c; 3c) and between the two in the short dimensions, means of short inserts (4a, b; 4a, b, c, d; 4c, b), which are joined thereto , and between these means of lower parts (2, 2, 2a) and these means of upper parts (3a, b; 3a, b, c; 3c), means of longitudinal inserts (5, 6, 5) have been arranged to form one or more upper chambers (10; 10, 27; 27) in the rule (1; 25; 2, 5, 26). In the chamber (10; 27) or chambers (10, 27) there are one or more memories using their displacement means (18; 18, 33; 33), through one or more longitudinal openings ( 11; 11, 31; 31) of the chamber (s) (10; 10, 27; 27) for their displacement in the chamber (10; 27) or chambers (10, 27) along one or more paths (12 ; 12, 30; 30) of the room or rooms (10; 10, 27; 27). Therefore it is possible to let your hand drag on the upper part of the ruler (1; 25; 2, 5, 26), when using it to measure, without the measurement memory (13; 32 ) or locked and attached measurement memories (13, 32) are moved unintentionally.

Description

RULER WITH MEASURING MEMORIES

The present invention relates to a ruler with which one draws straight lines, which has been arranged with one or more displaceable and adjustable measuring memories.

In the earlier patent writs 1215136, 1249049, 1699847, 2422745 and

2456676, which are writs about measuring memories on a ruler, the measuring memories all lay open on the rulers without protection over themselves. The measuring memories therefore are disturbing when, one works with the ruler and if one rests and draws the hand over the ruler when ruling can, when one comes to the measuring memories, break occur in the ruling line or the measuring memories can also move from their adjusted positions unintentionally. It is a great inconvenience to sit and be tense so that one does not reach the measuring memories instead of just concentrate on the ruling.

This invention has purposely solved the above problems and the ruler characterize by the following which hitherto is not earlier known: that in and by the ruler has been arranged one room or several rooms, whence the upside or upsides of said room or rooms have been overbuilt, by that the ruler consists of one oblong bottom part or several oblong bottom parts which are arranged to form one oblong bottom part and thereover said bottom part means one oblong upper part or several oblong upper parts which are arranged to form one oblong upper part, wherein the short sides between said bottom part means and said upper part means are joined with these short insert means, and that between said bottom part means and said upper part means lengthways of the ruler has been arranged longitudinal insert means, whereby of said insert means said upper part means has been separated a distance from and over said bottom part means and said one oblong overbuilt room or several oblong overbuilt rooms have been formed in the ruler, whence said room or rooms extend between said bottom part means, which forms the bottom or the bottoms of said room or rooms, and said upper part means, which forms the roof or the roofs of said room or rooms, and between said short insert means, whence said insert means form walls to said room or rooms , and that to said room or rooms on the ruler has been arranged one longitudinal opening or several longitudinal openings, and whereon the ruler has been arranged scale or scales of measurements means, and wherein said room or rooms has been arranged one path or several paths and one measuring memory or several measuring memories, whence the measuring memory or the measuring memories can be reached, for displacement along the path or the paths and said room or rooms and said scale or scales of measurements means, through the longitudinal opening or the longitudinal openings, by means of the one or more displacement means of the measuring memory or the measuring memories, which has been overbuilt by said upper part means, and that the pointer means and the remaining means of the measuring memory or the measuring memories are so overbuilt, enclosed and protected by said bottom part means, said insert means and said upper part means that one for example can rest and drag the hand over the upside or upsides of said upper part means of the ruler, when ruling forward to and past the in the, behind the measuring- and drawing edge or the measuring- and drawing edges of the ruler, placed and adjusted overbuilt measuring memory or measuring memories without reaching the measuring memory or the measuring memories with the hand or the pen, and by that without that break occurs in the ruling line or without that the measuring memory is moved unintentionally from its adjusted position, or the measuring memories are moved unintentionally from their adjusted positions, on said scale or scales of measurements means during the work of ruling and remaining ruler work.

The ruler with enclosed and overbuilt measuring memories, according to the invention, is well usable for example when drawing houses, as a hobby or professionally, where it often is hard to remember measures which one compares with other measures over and over again, in the schoolwork when drawing figures in the mathematics, where one often forgets the measures when one is about to draw them and has been occupied for a long time with figures, and at offices, at a drawing table, when drawing machine parts and on other occasions where one needs to measure measures, rule measures and preserve measures and it is important that one, when using the ruler for a long time, may rest the hand on the ruler when one rules and/or adjusts the measuring memories, without that one reaches or moves the measuring memories unintentionally.

The means which are demanded for the invention are evident from th e patent claims and the description which follows, where two performance forms of the invention are to be described by references to figures and where some additional performance forms with suppliments are going to be described thereafter. The figures show primarly:

Figure 1 shows a ruler with encased and overbuilt measuring memory, according to the invention, seen in the longitudinal direction and from above.

Figure 2 shows parts of the encased and overbuilt measuring memory, which is shown on figure 1, in cross section.

Figure 3 shows parts of the encased and overbuilt measuring memory, which is shown on the figures 1 and 2, in parted sections seen sideways from above.

Figure 4 shows a ruler with front and back encased and overbuilt measuring memories, according to the invention, seen in the longitudinal direction from above.

Figure 5 shows the ruler with front and back encased and overbuilt measuring memories, according to figure 4, seen straight from above.

Figure 6 shows the ruler with front and back encased and overbuilt measuring memories, according to the figures 4 and 5, in profile and the ruler in cross section.

Figure 7 shows the back encased and overbuilt measuring memory, which is shown on the figures 4, 5 and 6, in profile and the back room with the room casing in cross section.

Figure 8 shows the back encased and overbuilt measuring memory, which is shown on the figures 4, 5, 6 and 7, seen in the longitudinal direction and sideways from above, and parts of the back room without the upper part. The ruler 1, which, is shown on the figures 1 -3 and on a part of the figures 4 - 6, has an oblong bottom part 2 and over the whole bottom part 2 an oblong transparent upper part 3 and in one short side between these extends from these a moulded short insert form 4a and in the other short side between these is arranged a separate short insert form 4b which is joined with these. In the backmost end between the bottom part 2 and the upper part 3 and the short insert forms 4a,b is a back longitudinal insert form 5 moulded with the upper part 3 and the bottom part 2 and in one short side moulded, with the moulded short insert form 4a and in the other short side separate joined with the separate short insert form 4b. The upper part 3 is in front die cast in a deflection 6, which extends to the top edge of the measuring- and drawing edge 7, over the front edge of the bottom part 8, under which is arranged a scale of measurements 9, and the deflection 6 constitutes a front longitudinal insert form. The ruler 1 thereby has an oblong inner room 10 which extends between the upside of the bottom part 2, which thus forms the bottom of the room 10, and the underside of the upper part 3, which thus forms the ceiling of the room 10, and the insides of the short insert forms 4a,b and the insides of the longitudinal insert forms 5,6, whence the insides of the insert, forms 4a,b,5,6 thus forms the walls of the room 10. Both longitudinal insert forms 5,6 streighten the ruler 1 and prevent that big swing occurs on the upper part 3 when one puts the hand on the same while ruling. A longitudinal opening 11 extends along the upper part 3 over the room 10. The longitudinal opening 11 parts the upper part 3 in a bigger front part of the upper part 3a and a back smaller part of the upper part 3b. The bottom part 2 has a path 12, which has the form of a score which extends inside and along the bottom part 2 right under the longitudinal opening 11. The path 12 has upmost two, with space between, parallel running outwards bevelled longitudinal sliding edges 12a,b and thereunder each a straight wall 12c,d under which there is a bottom 12e, which has a dust opening 12f (see also point 1), page 10). The ruler 1 can for example be made in plexiglas or plastic or both. The upper part 3 and the bottom part 2 and the insert forms 4a,b,5 are suitably each about equally thick (see also the points 4), 6) - 8)).

In the overbuilt room of the ruler 10 has in this example been placed one measuring memory 13. One can however as well have two or more measuring memories 13 in the room 10. The measuring memory 13 has a slide 14, which sliding sides 14a, b, which are inwards bevelled, bear against the outwards bevelled longitudinal sliding edges of the path 12a,b and the bottom of the slide 14 does not touch the bottom of the path 12e (see also the points 2) , 3 ) ) . On the upside of the slide 14 is arranged a measuring arm score 14c, which longitudinal score edges 14d,e in this example extend up over the longitudinal sliding edges of the path 12a,b. The slide 14 has about its middle a hole 14f and over the measuring arm score of the slide 14c lays a part of a measuring arm 16a, which has a hole 16b. which fits over the hole of the slide 14f. The front remaining measuring arm part 16c extends forward in the room 10 between the bottom part 2 and the front part of the upper part 3a, without bearing against these, and in front in a deflection to the measuring and drawing edge 7, without that the measuring arm tip 16d touches the inside of the deflection of the upper part 6. Between the underside of the measuring arm part 16a which lays over the measuring arm score of the slide 14c and the measuring arm score of the slide 14c has in this example been fixed a separate steel spring arrangement 15 (see also point 16)). Over the measuring arm part 16a, which lays over the measuring arm score of the slide 14c and the spring arrangement 15, is am upper measuring arm score 17 fixed, which downwardly longitudinal score edges 17a,b lay on the longitudinal score edges of the measuring arm score of the slide 14d,e. From the middle of the upside of the upper measuring arm score 17 extends a displacement part 18, which extends a distance up in the longitudinal opening 11, and which has a finger excavation 18a, which is formed so that it fits a finger. At the bottom in the niddle of the finger excavation 18a is a hole 18b, which also goes through the upper measuring arm score 17, whence the hole 18b fits over the hole of the measuring arm 16b. Through these holes 18b, 16b and the spring arrangement 15 and the hole of the slide 14f has in this example been fixed a screw 19, which is threaded only downmost, whence the threaded part 19a is screwed up in a nut 20 which lays in an excavation 14g on the bottom of the slide 14 under the hole of the slide 14f (instead of the above the parts can be rived together or similar). In the finger excavation 18a can be fixed some finger grip part, which conceals the screw head, and the finger grip part can be grooved, or similar, and be arranged with a little excavation which fits a pencil tip. When the screw 19 has been screwed up the upper measuring arm score 17 presses a projecting part 16e, which extends from the underside of a back thickened and wide measuring arm part 16f, down in an excavation 14h on the slide 14, and the upper measuring arm score 17 presses the underside of the thickened and wide measuring arm part 16f against the score bottom of the measuring arm score of the slide 14i and upside against the score ceiling of the upper measuring arm score 17c, and the longitudinal edges against the insides of the longitudinal score edges 14d,e,17a,b (see also point 13)) This measuring arm clamping locking device prevents that the measuring arm 16 moves forward and backwards and unnecissarily sideways when one displaces the measuring memory 13. When the screw 19 is screwed up and the measuring memory 13 is not yet put in the ruler 1 is also, after the thickened measuring arm part 16f, the upside of a thinned and narrowing measuring arm part 16g, which does not touch the insides of the longitudinal score edges 14d,e,17a,b, whence this measuring arm part 16g is so arranged to be able to spring, pressed up towards the ceiling of the upper measuring arm score 17c. The upside of a front friction part 21, which is a little elevation on the upside of the measuring arm 16, just in front of the upper measuring arm score 17, bear against the underside of the front part of the upper part 3a by the compressing strain of the spring arrangement 15 and. the thinned measuring arm part 16g, when the measuring memory 13 is put in the ruler 1. The front friction part 21 prevents that the upside of the between the bottom part 2 and the front part of the upper part 3a laying measuring arm part 16c and the upside of the front part of the upper measuring arm score 17 is exposed to friction, so that the brake effect on the measuring memory 13 will not be too large and so that a minimum of scratches will appear along the underside of the front part of the upper part 3a when one displaces the measuring memory 13. When the measuring memory 13 thus is placed in the ruler 1 and the upside of a front friction part 21 is pressed up against the underside of the front part of the upper part 3a, the thinned and narrowing measuring arm part 16g bends down over the spring arrangement 15 in that part of the formed spring room 22 which extends between the underside of the thinned measuring arm part 16g and the bottom of the measuring arm score of the slide 14i. The front part of the upper measuring arm score 17, which also is an insert which takes up hard pressu res on the ruler 1, and thereby spares the spring arrangement 15 and the measuring arm 16, is so arranged in height that its upside does not touch the underside of the front part of the upper part 3a other than when the front part of the upper part 3a is depressed, as sometimes when ruling. By the compressing strain of the thinned measuring arm part 16g and the spring arrangement 15 is also the upside of a back friction part 23, which is a little elevation backmost on the upside of the upper measuring arm score 17, pressed up against the underside of the back part of the upper part 3b. The back friction part 23 prevents that the whole back part of the upside of the upper measuring arm score 17 is exposed to friction, so that the brake effect on the measuring memory 13 will not be too large (see also point 5)). When the upsides of the friction parts 21,23 are pressed up against the underside of the upper part 3 the even straight bevelled sliding sides of the slide 14a,b are depressed against the even straight bevelled and exact parallel longitudinal sliding edges of the path 12a,b, whereby the measuring memory 13 the whole time is in clamping position between the upper part 3 and the path 12 and whereby, when one displaces the measuring memory 13 with a pencil or a finger on the displacement part 18, the slide 14 does not jump out of the path 12 and does not tilt on the same, so that no unnecissary flings sideways occur between the measuring arm tip 16d and the scale of measurements 9. When one leads the measuring memory 13 along the room 10, which one can do between the insides of the short insert forms 4a,b, the measuring memory 13, when the parts of the measuring memory 13 have been arranged in coordination with each other, goes altogether straight, just enough easy and also softly and evenly, when the over the spring arrangement 15 springing measuring arm part 16g and the spring arrangement 15 smoothes possible irregularities along the underside of the front part of the upper part 3a. The friction parts 21,23 are suitably formed in durable and friction resisting plastic (see also the points 14), 16) - 18)).

When one puts a measuring memory 13 on a measure on the scale of measurements 9 the measuring memory 13 stops immediately when one stops the same, precisely on the adjusted measure, when accordingly the spring arrangement 15 and the thinned measuring arm part 16g the whole time keep the upsides of the friction parts 21,23 pressed up against the underside of the upper part 3. The measuring memory 13 thereafter, through its clamping position between the path 12 and the upper part 3, remains in its adjusted position on the measure and preserves the measure until one leads the measuring memory 13 aside again. The same is valid for every other measuring memory 13 which one sets out in the room 10 and wherever one in the room 10 places the same and even if one turns, moves or shakes the ruler 1. When the displacement part 18 in the longitudinal opening 11 extends a distance below the upside of the upper part 3, which makes it overbuilt by the upper part 3, and when the measuring arm 16 does not extend past the measuring- and drawing edge 7, one can also rule forward to and past the measuring memories 13 with the hand simultaneously resting on and draging over the upside of the ruler 1, which one should do, without that the measuring memories 13 move thereof. When the measuring memories 13 the whole time are enclosed in the room 10 the measuring memories 13 are neither in the way and disturb when one works with the ruler 1, simultaneously as the measuring memories 13 the whole time are protected from bumps and such (see also the points 9), 10)). The upper part 3 is in this example down bevelled in the short sides of the longitudinal opening 11 and somewhat along its longitudinal edges, so that one can reach the displacement part 18 when so is intended (but accordingly not unvoluntarily).

In this example the front part of the measuring arm 16c, which shows and makes clearer the measure, is wide and supplied with two straight longitudinal edges, which can be used as measuring edges (see also point 12)). Two measuring memories 13 can be slided together in the room 10 if one arranges every displacement part 18 of the measuring memory 13 in line with the inner longitudinal edge of the measuring arm 16, whereby one with the inner longitudinal edges can mark two measures which lay close to each other on the scale of measurements 9. That or those longitudinal edges which are used as a measuring edge can be marked vith a stroke or some symbol (see also point 15)). The deflection of the upper part 6 is so arranged, low and thickest upover and gradually thinner and in such a grade angle that no unwanted optical phenomenons, as for example too strong enlargements or unwanted refractions in the material, appear under normal use, whereby the degree stroke and the measuring arm 16 do not misrepresent by the same, and the thin front edge of the deflection of the upper part 6a lays on the upmost edge of the measuring- and drawing edge 7 and the measuring arm tip 16d extends to a little distance behind the inside of the deflection of the upper part 6, which makes the eye perceive that the measuring arm 16 goes all the way to the measuring- and drawing edge 7 when ruling and marking measures. Hereby one all the time has a good near contact between the measuring- and drawing edge 7 and the measuring edge or the measuring edges of the measuring memory 13. When the measuring edge of the measuring arm 16 seems to go all the way and when it is straight so that it follows the degree stroke, the measuring edge in practice also prolongs and distincts the degree stroke on which the measuring memory 13 is set, which helps the person who rules to clearly see the degree stroke and thus helps him to clearly read the adjusted measure and gives him a good target where to stop the ruling.

With every measuring memory 13 which are placed in the ruler 1 one can measure measures, aim measures, show and make clearer measures, compare measures with other measures and preserve measures on the ruler 1. When one aims or measures for example the length of a line or an object, one puts the 0 of the ruler 1 at the beginning of the line or object, and leads the measuring memory 13 to the end of the object, and lets go the measuring memory 13, whereafter the measured linear measure is locked preserved and sharpened until one moves the measuring memory 13 again. When one rules with the ruler 1 one suitably holds the ruler 1 with some fingers on the left part of the ruler 1 or on the ruler grip 24, which in this example is firm joined with a part of the backside of the ruler 1 (see also point 11)).

The ruler 1 is suitably placed in a ruler shelter when it is not used. However can the ruler 1 easily be cleaned from dust by that one for example leads a little pencil brush through the longitudinal opening 11 and with that leads out the dust through the dust opening 12f.

The ruler and the measuring memories can be varied in many ways, whence here follows some examples: 1) The bottom of the path can be wholly covered or it can be arranged with big openings. 2) The longitudinal sliding edges of the path can be bent inwards and the slide can be round. 3) The path can have the form of a slide bar or another score than the score given in the example and the slide then is formed so that it fits thereto. 4) To make the ruler look even lower and estetic one can bevel the upper longitudinal back edge of the upper part. Also the upper short side edges of the upper part can be bevelled. 5) The upper part can be arranged nontransparent over the gliding trace of the friction parts to conceal the possible few scratches which appear of the same. 6a) Along the short sides of the ruler and the back longitudinal side one can arrange one and same of the following insert alternatives or one of the following insert alternatives in combination: a) A separate insert form which is joined with the bottom part and the upper part, b) Moulded with the upper part an insert form which is joined with the bottom part, c) Moulded with the bottom part an insert form which is joined with, the upper part, d) Moulded with the upper part an insert form and moulded with the bottom part an insert form which are joined with each other. e) A separate insert form which is joined with the bottom part and an insert form of the upper part. f) A separate insert form which is joined with the upper part and an insert form of the bottom part. g) A separate insert form which is joined with an insert form of the bottom part and an insert form of the upper part.

Along one of the short sides of the ruler and along the back longitudinal side can also be arranged: h) An insert form casted together in one form with the bottom part and the upper part. The other short side then can be arranged with preferably the alternative a). Along the front longitudinal side of the ruler can be arranged one of the following alternatives: a) Moulded with the upper part an insert form which thin off and extends to the bottom part without being joined with the same (as No 6 on the ruler 1). b) Moulded with the upper part an insert form which thin off and is casted in one form with the bottom part or in some other way is joined with the bottom part.

One can also form the ruler so that the whole bottom part (with score and score bottom) plus the back longitudinal insert form and the back part of the upper part (with short side edges up to and including the short sides of the longitudinal opening) are formed in one form and the front part of the upper part and the front part of the short insert forms are formed in one form, and then join these forms (as in claim 6). There is a possibility that the ruler also can be casted wholly in one form. 6b) The back longitudinal insert form does not have to be one sole long piece, but can instead be parted in several smaller pieces, placed with space between each other. The short insert forms can extend along the whole or a part of the short sides. 7) The ruler can be arranged in one of the following ways: a) The whole ruler can be formed in transparent material which is uncoloured or transparent coloured. b) The upper part and the bottom part and possible thereto belonged insert forms can be formed in transparent material which is uncoloured or transparent coloured and the separate insert forms can be formed in nontransparent material which is nontransparent coloured or uncoloured. c) The upper part and thereto possible belonged insert forms can be formed in transparent material which is uncoloured or transparent coloured and the separate insert forms, if they exist, and the bottom part and thereto possible belonged insert forms can be formed in nontransparent material which, is uncoloured or nontransparent coloured. 8) Instead of one upper part which is formed in one form in the short sides one can for example arrange two horizontal parallel laying upper parts and in the short sides an edge piece between these, which are joined with the upper parts. In this example it is only wholly necessary that the front part of the upper part and that insert form which is arranged at the front longitudinal side are transparent, while the remaining parts can be either transparent or nontransparent. 9a) A parking room, where one can park the measuring memories when they are not used, can be arranged for example in the left end, from the inside of the left short insert form to the beginning of the scale of measurements, or in the same way in the right end of the room or in both ends of the room, b) The upper part can be arranged nontransparent over the parking room. 10) Above the parking room can along for example the underside of the front part of the upper part be arranged a wedge-shaped excavation, a distance along the longitudinal opening. The purpose with the excavation is that, when the measuring memory is parked under the same, meanwhile the spring can stretch out. This is not necessary if one has a U-formed spring, but it can be good at other spring types. The excavation can also be arranged along the front longitudinal sliding edge of the path under the parking room. 11) The ruler can also be arranged wholly without ruler grip. 12) The front part of the measuring arm can have another form than the form described, for example tip-shape or needle-shape. Behind the front part of the measuring arm, which shows the measure, whatever form that part has, the measuring arm can, backwards up to and including the front friction part, have gradually wider form so that at last it is as wide as the displacement part, or straight form or other form. 13) The backmost thickened and wide measuring arm part can be formed in one form with the slide or similar, instead of that a projecting part is placed in an excavation on the slide. Instead also a projecting part can extend from the slide and be leaded into an excavation on the measuring arm. Several similar arrangements can also instead be arranged to get a measuring arm clamping locking device. 14) Every measuring memory can be formed in transparent or nontransparent material and it can be arranged in one or more colours, which match the colour or colours of the ruler. 15) To recognize the measuring memories, if they are many, the same or the pointer part or the measuring stroke can be arranged in different colours. 16) On the figures 1- 3 the spring is a conic separate compression spring, but one can as well between the slide and the measuring arm part over the slide arrange another steel- or plastic spring arrangement (for example with U-form) which is separate or which is joined with the measuring arm score of the slide or the measuring arm part over the slide, in such a way that the spring contributes with adapted compression strain to that the thinned measuring arm part is pressed up from the slide. 17) The spring can be taken away. 18) The measuring memory can consist of: A slide and a measuring arm, whence a part of the measuring arm extends a level above the bottom part in the room and a part of the measuring arm is joined with, the slide and on the later-mentioned measuring arm part is a displacement part joined and a distance in front of the displacement part is on the measuring arm joined a friction part, which bear against the underside of the front part of the upper part, whence the measuring arm distance between the displacement part and the front friction part is formed so that it constitutes a front spring, which can be bent down, and backover on the measuring memory one of the following arrangements can be used: a) On the rear part of the measuring arm a back friction part which bear against the underside of the back part of the upper part, b) A spring which extends upwards and bear against the underside of the back part of the upper part. c) The measuring arm extends a further distance behind the slide, whence this measuring arm distance is formed so that it constitu tes a spring which can be bent down, and backmost on the same is joined a back friction part which bear against the underside of the back part of the upper part.

On the figures 4 - 8 is shown ruler 25. The ruler 25 consists of a front bigger part 1, which is identical with the ruler 1, and from its bottom part 2, under the lower longitudinal back edge of the back longitudinal insert form 5, extends backwards a bottom part 2a and from its back part of the upper part 3c, over the upper longitudinal back edge of the back longitudinal insert form 5, extends backwards an upper part 3c and in one short side between the backwards extending bottom part 2a and upper part 3c is a short insert form 4d moulded with the same and the front moulded short insert form 4a, and in the other short side between the backwards extending bottom part 2a and upper part 3c is a separate short insert form 4d joined with the same and the front separate short insert form 4b. The ruler 25 thereby also gets a back smaller part 26 with therein a back smaller overbuilt room 27, which extends between the upside of the bottom part of the back room 2a, which thus forms the bottom of the room 27, and the underside of the upper part of the back room 3c, which thus forms the ceiling of the room 27, and the insides of the short insert forms of the back room 4c,d and the backside of the back longitudinal insert form 5 and the backside of the ruler 25, whence mentioned insert forms 4c,d,5 form walls of the room 27. From the backside of the back longitudinal insert form 5 and a smaller part of the insides of the short insert forms of the back room 4c,d and a smaller part of the bottom part of the back room 2a extends a backwards down bevelled scale border 28, whereon is printed a back scale of measurements 29, which has the same length as the scale of measurements 9 in the front room 10. A distance behind the scale border 28 extends, from a smaller part of the bottom part of the back room 2a and a smaller part of the lower halfs of the insides of the short insert forms of the back room 4c, d, a path consisting of a slide bar 30 (see also point 1), page 17), and behind the slide bar 30 is a longitudinal opening 31 between the remaining part of the bottom part of the back room 2a and the upper part of the back room 3c and the short insert forms of the back room 4c, d. The ruler 25 can for example be formed in plexiglas or plastic or both. The upper part 3, the bottom part 2 and the insert forms 4,5 are suitably each approximately equally thick (see also the points 2) - 4)).

In the front room 10 is in this example one measuring memory 13, but one can as well place more measuring memories 13 in the overbuilt room 10.

In the back room 27 have in this example been placed two measuring memories 32, but one can as well place one or more measuring memories 32 in the overbuilt room 27. Every measuring memory 32 have in the longitudinal opening 31, a distance in front of the backsides of the bottom part of the back room 2a and the upper part of the back room 3c, a displacement part 33, which lower part is precisely behind the slide bar 30. The backside of the displacement part 33 is suitably grooved, so that one can get hold of the displacement part 33 with a finger when so is intended (but not unvoluntarily). From a part of the frontside of the displacement part 33 protrudes a frame 34. The frame 34 first extends straight forward, precisely over the slide bar 30 and thereafter the frame 34 extends in a shorter downwards slope and the frame 34 also extends between precisely in front of the slide bar 30 and a distance behind the backside of the scale border 28, without laying on the bot— tom part of the back room 2a. In front of the lowest part of the downwards slope extends from the frame 34 a spring 35, which extends upwards and backwards a distance over the downwards slope and a distance over that part of the frame 34 which lays on the slide bar 30, where the upside of the spring 35 bear against the underside of the upper part of the back room 3c and the spring 35 bends a little towards the later mentioned frame part. Hereby is the, by the lower part of the inside of the displacement part 33 and the insides of the frame 34, built score 36, which is the slide of this measuring memory 32, depressed over the slide bar 30, so that when one displaces the measuring memory 32, the score 36 does not jump out of the slide bar 30 and does not tilt on the same, and whereby the measuring memory 32 the whole time is in clamping position between the upper part of the back room 3c and the slide bar 30. Simultaneously, when the spring 35. is depressed, the upside of a friction part 37, which extends from the frame 34 in front of the spring fastening and which extends upwards and backwards, is pressed up against the underside of the upper part of the back room 3c, whereby a pointer part 38, which from the fastening of the friction part 37 and the frame 34 protrudes over the scale of measurements 29, is prevented from bearing against the underside of the upper part of the back room 3c, so that no scratches appear along the underside of the upper part of the back room 3c over the scale of measurements 29. The pointer part 38 is also kept in a straight position a distance over the scale of measurements 29, without tilting down and scratching the same, by that the upside of the displacement part 33 also bear against the underside of the upper part of the back room 3c. When one with a finger on the displacement part 33 leads the measuring memory 32 along the room 27, which one can do between the insides of the short insert forms of the back room 4c,d, the measuring memory 32 goes altogether just enough easy and also softly and evenly, when the spring 35 smoothes possible irregularities along the underside of the upper part of the back room 3c. The parts of the measuring memory 32 (see also the points 8), 9)) are suitably formed in durable and friction resisting plastic.

When one puts a measuring memory 32 on a measure the measuring memory 32 stops immediately when one lets go the same, precisely on the adjusted measure, when at least the upside of the spring 35 all the time bear against the underside of the upper part of the back room 3c. The measuring memory 32 then, through its clamping position between the slide bar 30 and the upper part of the back room 3c, remains in its adjusted position on the measure and preserves the measure until one moves the measuring memory 32 aside again. The same is valid for every other measuring memory 32 which one sets out in the back room 27 and wherever one in the back room 27 places the same and even if one turns or removes the ruler 25. The bottom part of the back room 2a and the upper part of the back room 3c have, as mentioned before, been arranged so that they extend a distance behind the displacement parts 33, so that one also can hold the ruler 25 with a grip around the upper part 3 and the bottom part 2 without that the measuring memories 32 are moved thereof. When the measuring memories 32 the whole time are enclosed in the back room 27 the same are not in the way and disturb when one works with the ruler 25, simultaneously as the measuring memories 32 the whole time are protected from bumps and such (see also the points 5 ) , 6) ) .

In this example the pointer part 38, which shows and makes clearer the measure, has a wide form which one longitudinal edge is straight and is a measuring edge and which other longitudinal edge is bent upover to prevent misunderstanding between the measuring edges when one uses several measuring memories 32 next to each other (see also the points 7), 10)). If one arranges the measuring edges of two pointer parts 38 in such a way that they can be slided together, two wholly adjacent measures can be marked also with two measuring memories 32 on the scale of measurements 29 in the back room 27.

When one with the front measuring memory 13 has measured a measure, one can preserve this measure by putting a back measuring memory 32 on the same measure on the back scale of measurements 29. With the front measuring memory 13 one can operate freely and measure new measures, aim measures, directly compare new measures with preserved measures, and also for a short space of time preserve measures and the front measuring memory 13 also is used as a pointer when one rules new and preserved measures. While one is working with the front measuring memory 13, one can have comparison measures preserved with the back measuring memories 32 (which, as known, is out of the way for the front measuring memory 13 in a special back room 27) as long as desired, simultaneously as these measures are easy to read at need.

The back part of the ruler which has a back room and the measuring memories can be varied in many ways, whence here follows some examples: 1) The path can have the form of a score, or another form and the slide of the measuring memory then is formed so that it fits thereto. 2) The back edges of the upper part of the back room and the bottom part of the back room can be bevelled. 3) In the short sides one can use certain of the insert alternatives which have been described for the ruler 1, the points 6a a-h. 4) The back part of the ruler can be formed wholly in transparent material or in any of the ways which have been described for the ruler 1, the points 7 b-c. 5) The back room can be arranged with parking room, in any of the ways which have been described for the ruler 1, the points 9a-b. 6) At the parking room or the parking rooms, can along the underside of the upper part of the back room, or the slide bar, be arranged a wedge-shaped excavation. The purpose with the excavation is that, when the measuring memory is parked in the parking room, the spring can stretch out if so is wanted. 7) The pointer part can have other form than what have been shown on the figures 4 -8, for example tip-shape or needle-shape. 8) The parts of the measuring memory, or some of them, can be formed separate and be joined with its combination part with strong glue or with another fastening arrangement. 9) The measuring memories can be formed in nontransparent or transparent colour which matches the colour or colours of the ruler. 10) To recognize the measuring memories the same, or the pointer part or some measuring edge mark can be arranged in different colours or the measuring memories can also be supplied with a recognizing letter. If the measuring memories are three in number, one measuring memory can for example be arranged with the letter L (for the length), one measuring memory can be arranged with the letter B (for the breadth) and one measuring memory can be arranged with the letter H (for the height), whereafter one can use respectively measuring memory for linear-, breadth and height measures.

The ruler with enclosed and overbuilt measuring memories, according to the invention, can have other performance forms than those which now have been described, whence four examples on this is going to be described in big terms below.

The first example is a ruler which consists of a bottom part, with a front measuring- and drawing edge, and thereto at least one scale of measurements, whence the bottom part backover is overbuilt in such a way that a back smaller room is formed in and by the ruler, which is alike, or similar to, the back room of the ruler 25. In the back room is placed a number of measuring memories which are alike, or similar to, the measuring memories in the ruler 25. The patent claims 8 and 9 describe this ruler and the ruler is referred to as No 2,5,26, whence 2 = the bottom part 2, 5 = the back longitudinal insert form and 26 = the back room casing with therein the back room. The back room and the measuring memories can be varied according to what have been described for the ruler 25, to the suitable extent.

The second example is a ruler which consists of a bottom part and over the whole bottom part an oblong upper part and along each short side between these extend from these short insert forms. A longitudinal opening extends along the backside of the ruler between the upside of the bottom part and the underside of the upper part and the insides of the short insert forms. The upper part thereby is undivided. The upper part is in front deflected to the front measuring- and drawing edge of the bottom part, whereto at least one scale of measurements is arranged, and the deflection of the upper part constitutes a front longitudinal insert form. The ruler thereby has an oblong overbuilt room in and by the same. A path extends along the bottom part. In the room of the ruler is placed a number of measuring memories. The measuring memories have a slide, which is put on the path and a long measuring arm is joined with the slide. The measuring arm extends forward to the measuring- and drawing edge and backwards behind the slide so far that a displacement part, which is joined with, the backside of the measuring arm, in the longitudinal opening extends a distance in front of the backsides of the bottom part and the upper part. With the measuring memory is also joined one or more parts which bear against the underside of the upper part. The measuring memory is suitably arranged springing in any of the ways which are described for the ruler 1. The ruler can be varied according to what have been described for the ruler 1, to the suitable extent. Instead of now described measuring memories, measuring memories of smaller size (for example as the measuring memories described for the ruler 25 with a longer pointer part which goes all the way to the front scale of measurements) can be used in the ruler.

The third example is. a ruler which consists of an oblong bottom part and over the whole bottom part an oblong upper part wherein each short sides between these are joined short insert forms. A longitudinal opening extends along the middle of the upper part and a path extends along the bottom part. The upper part is both in front deflected to the front measuring- and drawing edge of the ruler, whereto at least one scale of measurements is arranged, and backover deflected to the back measuring- and drawing edge of the ruler, whereto at least one scale of measurements is arranged, and the deflections of the upper part constitute a front respectively a back longitudinal insert form. The ruler thereby has an oblong overbuilt room in the same. In the room of the ruler is placed a number of measuring memories. The measuring memories have a slide, which is fixed on the path and a long measuring arm is joined with the slide. The measuring arm extends forward to the front measuring- and drawing edge and backwards to the back measuring- and drawing edge. A displacement part is joined with the measuring arm. With the measuring memory is also joined one or more parts which bear against the underside of the upper part. The measuring memory is suitably arranged springing in any of the ways which have been described for the ruler 1. The ruler can be varied according to what have been described for the ruler 1, to the suitable extent.

The fourth example is a ruler which consists of an oblong bottom part and over the whole bottom part an oblong upper part wherein both short sides between these have been fixed and joined short insert forms, and wherein the backside between the bottom part and the upper part has been arranged a back longitudinal insert form which has been joined with these. The upper part is in front deflected to the measuring- and drawing edge, whence the deflection of the upper part constitutes a front longitudinal insert form. The ruler thereby has an oblong overbuilt room in and by the same. A path extends along the bottom part. The path has the form of a slide bar, which on the underside has a smaller base, which is joined with the bottom part. A slot then is formed in front between the upside of the bottom part and the underside of the slide bar to the front of the base and a slot is formed backover between the upside of the bottom part and the underside of the slide bar to the backside of the base. On the slide bar in the room is placed a number of measuring memories which each have a slide, approximately 1 cm in breadth, which is put over the slide bar. The slide is in the lower part front and back accomplished with an insert part, which is pushed in the proper slot and one of, or both of, the insert parts are supplied with a spring, suitably in plastic, which bear on the base of the slide bar. A measuring arm is joined with the slide The measuring arm extends all the way to the front measuring- and drawing edge of the bottom part. One can also change the back longitudinal insert form to a longitudinal insert form of the type deflection of the upper part and use the backside of the bottom part as a measuring- and drawing edge and the measuring arm can be formed so long as it extends also backwards all the way to the back measuring- and drawing edge. To every measuring- and drawing edge is at least one scale of measurements arranged. The slide, or a separate joined part, can function as displacement part. The ruler can be supplied with a ruler grip and parking room.

Every ruler with measuring memories, according to the invention, can be supplied with several scale of measurements of the bottom part in rows under each other and one or more scale of measurements along the upper part. A scale of measurements of the upper part can be precisely the same as a scale of measurements of the bottom part, and it can be arranged in coordination with such a one, and be good for quick adjustment of measures, or the scale of measurements of the upper part can also be a wholly different scale of measurements than a scale of measurements of the bottom part, and one can also have one or more of each.

Rulers with millimeter scale of measurements (with centimeter marks) can be supplied with millimeter figures which are arranged sideways from the millimeter strokes and one or more wide-shaped measuring memories (front or back measuring memory) which are placed in such a ruler can be arranged with a hole on its measuring arm, respectively pointer part. The hole is so placed that it overlays the row with millimeter figures and is arranged as large as exactly one figure gets room in there. When one uses the left longitudinal edge of the measuring memory as a measuring edge the figures are arranged sideways to the right from the strokes in such a way that when the measuring memory is put on a millimeter stroke, the figure notation of the same millimeter stroke appears in the measuring memory hole. For each millimeter stroke one puts the measuring memory on thereby the correct millimeter figure is encircled in the mea suring memory hole. It is also possible to put a measuring memory on a millimeter stroke wholly at starting point from when the right figure is seen in the hole, if one from the beginning has a given measure. If one alternatively uses the right longitudinal edge of the measuring memory as a measuring edge the figures instead have to be arranged to the left from the millimeter strokes. One can also on the ruler arrange two rows of millimeter figures, whence one row is arranged to the right from the strokes and one row is arranged to the left from the strokes. These two rows can be used to one (or more) left- and right longitudinal edges of wide-formed front measuring memories, in which case every measuring memory is tα be arranged with two holes, one upper hole for the upper row and one lower hole for the lower row. The two rows also can be used for inner longitudinal edges of two wide-formed measuring memories (front or back measuring memory), in which case one measuring memory is arranged with a hole for the upper row and the other measuring memory is arranged with a hole for the lower row. Each measuring memory hole can be supplied with an approximately 1 mm thick enlargement glass, in the size of a date showing glass of a date watch, which enlarges the figures. The measuring arm, respectively the pointer part, then has to be arranged somewhat thicker along the part where the hole is done. With a measuring memory with measuring memory hole with enlargement glass in it, where the millimeter figure is both encircled and enlarged, it will be very easy to read an isolated millimeter stroke.

Other notations than millimeter figures also can be arranged sideways under the row or rows of millimeter figures, for instance a 1-200 scale, which is arranged with small figures, which, one at a time, can be seen in one and same measuring memory hole which was used for millimeter figures, or in a separate measuring memory hole, which also can be supplied with enlargement glass. If the measuring arm, respectively the pointer part, in front instead of wide-form has tip-form, or- other shape, the notations instead have to be arranged straight behind the degree strokes or so that they fit in a hole on the alternate form. One or more scales of measurements of the bottom part and/or the upper part can, as is understood, be arranged with notations or smaller sca les. How many big scales of measurements, notations and smaller scales which totally can be arranged depends on how wide the ruler is made.

Claims

Patent claims

1. Ruler with which one draws straight lines , which has been arranged with one or more displaceable and adjustable measuring memories, c h a r a c t e r i z e d by that in and by the ruler (1;25;2,5,26) has been arranged one room (10;27) or several rooms (10,27), whence the upside or upsides of said room or rooms (10;10,27;27) have been overbuilt, by that the ruler (1;25;2,5,26) consists of one oblong bottom part (2;2,2a) or several oblong bottom parts which are arranged to form one oblong bottom part and thereover said bottom part means (2;2,2a) one oblong upper part (3a,b;3a,b,c;3c) or several oblong upper parts which are arranged to form one oblong upper part, wherein the short sides between said bottom part means (2;2,2a) and said upper part means (3a,b;3a,b,c;3c) are joined with these short insert means (4a,b;4a,b,c,d;4c,d) , and that between said bottom part means (2; 2,2a) and said upper part means (3a,b;3a,b,c;3c) lengthways of the ruler (1;25;2,5,26) has been arranged longitudinal insert means (5,6;5), whereby of said insert means (4a,b,5,6;4a,b,5, 6,4c,d;4c,d,5) said upper part means (3a,b;3a,b,c;3c) has been separated a distance from and over said bottom part means (2; 2, 2a) and said one oblong overbuilt room (10;27) or several oblong overbuilt rooms (10,27) have been formed in the ruler (1;25;2,5,26), whence said room or rooms (10; 10, 27; 27) extend between said bottom part means (2;2,2a), which forms the bottom or the bottoms of said room or rooms (10;10, 27;27), and said upper part means (3a,b;3a,b,c;3c), which forms the roof or the roofs of said room or rooms (10; 10,27;

27), and between said short insert means (4a,b;4a,b,c,d;4c,d), whence said insert means (4a,b,5,6;4a,b,5,6,4c,d;4c,d,5) form walls to said room or rooms (10; 10, 27;27) and that to said room or rooms (10; 10,27; 27) on the ruler (1; 25; 2,5, 26) has been arranged one longitudinal opening (11;31) or several longitudinal openings (11,31), and whereon the ruler (1; 25; 2,5,26) has been arranged scale or scales of measurements means (9; 9, 29;29), and wherein said room or rooms (10; 10, 27; 27) has been arranged one path (12;30) or several paths (12,30) and one measuring memory (13) or several measuring memories (13, 32; 32), whence the measuring memory (13) or the measuring memories (13, 32;32) can be reached, for displacement along the path (12; 30) or the paths (12,30) and said room or rooms (10; 10, 27; 27) and said scale or scales of measurements means (9;9,29;29), through the longitudinal opening (11;31) or the longitudinal openings (11,31), by means of the one or more displacement means (18; 18,33;33) of the measuring memory (13) or the measuring memories ( 13 , 32; 32) , which has been overbuilt by said upper part means (3a,b;3a,b,c;3c), and that the pointer means (16;16,38;38) and the remaining means of the measuring memory (13) or the measuring memories (13,32:32) are so overbuilt, enclosed and protected by said bottom part means (2;2, 2a), said insert means (4a,b,5,6;4a,b,5,6,4c,d;4c,d,5) and said upper part means (3a,b;3a,b,c;3c) that one for example can rest and drag the hand over- the upside or the upsides of said upper part means (3a,b;3a,b,c;3c) of the ruler (1;25;2,5,26), when ruling forward to and past the in the, behind the measuring- and drawing edge (7) or the measuring- and drawing edges of the ruler (1;25; 2,5,26), placed and adjusted overbuilt measuring memory (13) or measuring memories (13,32;32) without reaching the measuring memory (13) or the measuring memories (13, 32;32) with the hand or the pen and by that without that break occurs in the ruling line or without that the measuring memory (13) is moved unintentionally from its adjusted position, or the measuring memories (13,32;32) are moved unintentionally from their adjusted positions, on said scale or scales of measurements means (9; 9, 29;29) during the work of ruling and remaining ruler work.

2. Ruler (1) according to claim 1, c h a r a c t e r i z e d by that the ruler (1) consists of an upper part (3a,b) which by one longitudinal opening (11), which extends along the same, is parted in a front part of the upper part (3a) and a back part of the upper part (3b), whence the upper part (3a,b) for the rest is arranged over the whole one bottom part (2), and that said longitudinal insert means consist partly of a back longitudinal insert form (5) which is arranged at the backmost end between the bottom part (2) and the back part of the upper part (3b) and has been joined with these and partly of that the upper part (3a,b) in front is moulded in a deflection of the upper part (6) which forms a front longitudinal insert form, whereby one room (10) is formed in the ruler (1) which extends between the upside of the bottom part (2) and the underside of the upper part (3a,b) and the insides of said short insert means (4a,b) and the insides of the longitudinal insert forms (5, 6), and whence both longitudinal insert forms (5,6) streighten the ruler (1) and prevent big swing on the upper part (3a,b) when one rests the hand on the upper part (3a,b) when ruling, and that said scale or scales of measurements means is one scale of measurements (9) or several scales of measurements which are arranged in the front part of the ruler (1), that a path (12) is arranged along the bottom part (2), and that the measuring memory (13) or each separate measuring memory at least consists of the following means which are joined with each other: said pointer means (16) showing the measure, sliding means (14) formed suitable to the path (12), said displacement means (18) being overbuilt by the upper part (3a, b) by that the same is arranged a distance below the upside of the upper part (3a,b) in the longitudinal opening (11) and a lock arrangement or several lock arrangements, with which the measuring memory (13) or each separate measuring memory can be locked on a measure or several measures on the scale of measurements (9) or the scales of measurements.

3. Ruler (1) according to claim 2, c h a r a c t e r i z e d by that the deflection of the upper part (6), thus the front longitudinal insert form, is arranged so low and thickest upover and gradually thinner and in such a grade angle that the same does not create unwanted optical pheonomenons, whereby the degree strokes and said, one or more, pointer means (16) of the measuring memory (13) or the measuring memories do not misrepresent by the same, and that the thin front edge of the deflection (6) extends to the top edge of the front measuring- and drawing edge (7) and said pointer means (16) extends to a little distance behind the inside of the deflection of the upper part (6), which in practice makes the eye perceive that said pointer means (16) goes right up to the front measuringand drawing edge (7), whereby, and when also said pointer means (16) in front has one or several straight measuring edges, the measuring edge or each separate measuring edge prolongs and makes clearer the degree stroke and constitutes a good stopping target when ruling.

4. Ruler (1) according to claim 2 or 3, c h a r a c t e r i z e d by that the path (12) is a score in and along the bottom part (2), whence the path (12) upmost has two, with space between, parallel running bevelled longitudinal sliding edges (12a,b), thereunder each a straight wall (12c,d) under which there is a bottom (12e), that the sliding means of the measuring memory (13) or each separate measuring memory is a slide (14), which underside does not scratch the bottom of the path (12e), and which has two bevelled sliding sides (14a,b), which bear against the bevelled longitudinal sliding edges of the path (12a,b), and on the upside of the slide (14) a measuring arm score (14c), which has two longitudinal score edges (14d, e), and that on the middle of the slide (14) is a hole (14f), and that the pointer means of the measuring memory (13) or each separate measuring memory is a measuring arm (16), whence a part of the measuring arm (16a) lays over the measuring arm score of the slide (14c) and has a hole (16b) which fits over the hole of the slide (14f), and that the front remaining measuring arm part (16c) extends foirward in the room (10) between the bottom part (2) and the front part of the upper part (3a), without bearing against these, and that between the measuring arm part (16a), which lays over the measuring arm score of the slide (14c), and the measuring arm score of the slide (14c), a separate or with any of the mentioned parts joined spring arrangement (15) is arranged, and that over the measuring arm part (16a) which is put over the spring arrangement (15) and the measuring arm score of the slide (14c) an upper measuring arm score (17) is fixed, which downwardly longitudinal score edges (17a,b) lay on the longitudinal score edges of the measuring arm score of the slide (14d,e), and that the displacement means of the measuring memory (13) or each separate measuring memory is a displacement part (18) which extends from the middle of the upside of the upper measuring arm score (17), whence the displacement part (13) has a finger excavation (18a) wherein the bottom in the middle is a hole (18b), which also goes through the upper measuring arm score (17), whence the hole (18b) fits over the hole of the measuring arm (16b), and that at least through these holes (18b, 16b) and the hole of the slide (14f) has been fixed a part (19) which has been fastened, and that a measuring arm clamping locking device is arranged backover on the measuring memory (13) or each separate measuring memory, and prevents the measuring arm (16) from moving forward, backwards and unnecissarily sideways, that in front of the measuring arm clamping locking device a thinned and narrowing measuring arm part (16g) is arranged, which does not touch the insides of the longitudinal score edges (14d,e,17a,b), whence this measuring arm part (16g) is so arranged for to, when the measuring memory 013) or each separate measuring memory is put in the ruler (1) and when the upside of a front friction part (21), which is a little elevation on the upside of the measuring arm (16.)., precisely in front of the upper measuring arm score (17), and which of the compressing strain of the spring arrangement (15) and the thinned measuring arm part (16g) bear against the underside of the front part of the upper part (3a), be able to spring over the spring arrangement (15) in that part of the formed spring room (22) which extends between the underside of the thinned measuring arm part (16g) and the bottom of the measuring arm score of the slide (14i), whence the over the spring arrangement (15) springing measuring arm part (16g) and the spring arrangement (15) smoothes possible uneventies along the underside of the front part of the upper part (3a) when one displaces the measuring memory (13) or each separate measuring memory, and that the front part of the upper measuring arm score (17), which also is an insert which takes up hard pressures on the ruler (1), and thereby spare the spring arrangement (15) and the measuring arm (16), is so arranged in height that its upside does not touch the underside of the front part of the upper part (3a) other than when the front part of the upper part (3a) is depressed, and that by the compressing strain of the spring arrangement (15) and the thinned measuring arm part (16g) also the upside of a back friction part (23), which is a little elevation backmost on the upside of the upper measuring arm score ( 17 ) , is pressed up against the underside of the back part of the upper part (3b), whereby when the upsides of the friction parts (21,23) are pressed up against respectively underside of the parts of the upper part (3a,b), the slide (14) is depressed in the path (12), whereby of the described clamping position of the measuring memory (13) or each separate measuring memory between the upper part (3a,b) and the path (12), and the described forms of the path (12) and the s lide (14), the slide (14) is prevented from gaping in the path (12) and thereby the measuring arm (16) is prevented from getting in oblique position, so that when one adjusts the measuring memory (13) or each separate measuring memory on a measure, incorrect and uncertain degree stroke indication does not occur by the measuring arm (16) on the scale of measurements (9) or the scales of measurements, and whence of the mentioned clamping position and mentioned forms the measuring memory (13) or each separate measuring memory can be preserved locked precisely on an adjusted measure on the scale of mea- surements (9) or on one or several measures on the scales of measurements, even when removing the ruler (1).

5. Ruler (1) according to any of the claims 2-4, c h a r a c t er i z e d by that the upper part (3a,b) in the short side edges and longitudinal edges of the longitudinal opening (11) is bevelled.

6. Ruler (1) according to any of the claims 2 - 5, c h a r a c t e r i z e d by that the whole bottom part (2) and the back longitudinal insert form (5) and the back part of the upper part (3b), which extends up to and including the short sides of the longitudinal opening (11), are formed in one mould form and that in both short sides a front part of the short insert means (4a,b) are moulded in one with the underside of the front part of the upper part (3a) and that the back projecting remaining part of the short insert means (4a,b) in the short sides have been fitted in and have been separate joined with the whole bottom part (2), the frontside of the back longitudinal insert form (5) and the underside of the back part of the upper part (3b), and that in both short sides a projecting part extends from the bottom part (2), which both fit in a proper excavation along the front part of the undersides of the short insert means (4a, b) or vice versa, to streighten the durability of the ruler (1) and the upper part (3a,b) after putting together the ruler (1).

7. Ruler (1) according to any of the claims 2 - 6, ch a r a c t e r i z e d by that from the bottom part (2), under the lower longitudinal back edge of the back longitudinal insert form (5), extends backwards a bottom part (2a) and from the back part of the part (3b), over the upper longitudinal back edge of the back longitudinal insert form (5), extends backwards an upper part (3c), so that also a back room (27) is formed in the ruler (25), which extends between the upside of the bottom part of the back room (2a) and the underside of the upper part of the back room (3c) and the backside of the back longitudinal insert form (5) and the backside of the ruler (25), and that at least one scale of measurements (29) is arranged in the back room (27), and that one path (30) is arranged along the bottom part of the back room (2a), wherealong the measuring memory or the measuring memories (32) which are placed in the back room (27) are displaceable through one longitudinal opening (31).

8. Ruler (2,5,26) according to claim 1, c h a r a c t e r i z e d by that the ruler (2,5,26) has a bottom part (2,2a) whereto its front measuring- and drawing edge (7) is arranged at least one scale of measurements (9), and that said longitudinal insert means is a back longitudinal insert form (5), which is arranged and joined with the bottom part (2,2a) a distance behind the front measuring- and drawing edge (7) and a distance in front of the backside of the ruler (2,5,26), and that an upper part (3c) begins where the back longitudinal insert form (5) begins and is joined with at least its upside, whence the upper part (3c) extends over the back part of the bottom part (2a) and in the short sides over said short insert means (4c,d), whereby one back room (27) is formed in the ruler (2,5,26), which extends between the upside of the bottom part of the back room (2a) and the underside of the upper part of the back room (3c) and the insides of the short insert means of the back room (4c ,d) and the backside of the back longitudinal insert form (5) and the backside of the ruler (2,5,26), and that at least one scale of measurements (29) is arranged in the back room (27), and that one path (30) is arranged along the bottom part of the back room (2a), wherealong the measuring memory or the measuring memories (32) which are placed in the back room (27) are displaceable through one longitudinal opening (31).

9. Ruler (25;2,5,26) according to any of the claims 7 or 8 , c h a r a c t e r i z e d by that a down bevelled scale border (28) is arranged and joined with at least a part of the bottom part of the back room (2a) behind the back longitudinal insert form (5), whereon the scale border (28) a scale of measurements (29) is arranged, that the path (30) consists of a slide bar which a distance behind the scale border (28) extends from at least a smaller part of the bottom part of the back room (2a), that the longitudinal opening (31) is behind the slide bar (30), between the remaining part of the bottom part of the back room (2a) and the upper part of the back room (3c), and that the displacement means of the measuring memory or each separate measuring memory (32) is a displacement part (33) which, in the longitudinal opening (31) is situated a distance in front of the backsides of the bottom part of the back room (2a) and the upper part of the back room (3c), whence the lower part of the displacement part (33) is precisely behind the slide bar (30), and that from a part of the frontside of the displacement part (33) protrudes, a frame (34), which first extends straight forward, precisely over the slide bar (30) and which thereafter extends in a shorter downwards slope and whence the frame (34) also extends between precisely in front of the slide bar (30) and a distance behind the backside of the scale border (28) without bearing against the upside of the bottom part of the back room (2a), and that in front of the downwards slope is arranged and joined a spring (35), which is separate joined or which is moulded with the frame (34) and which extends upwards and backwards a distance over the downwards slope and a distance over that part of the frame (34) which lays on the slide bar (30), where the upside of the spring (35) bear against the underside of the upper part of the back room (3c) and the spring (35) bends a little towards the later-mentioned frame part, whereby the, by the lower part of the inside of the displacement part (33) and the insides of the frame (34) built score (36), which is the slide of the measuring memory or each separate measuring memory (32), is depressed over the slide bar (30), and that when the spring (35) is tense the upside of a friction part (37), which extends from the frame (34) in front of the spring fastening and which extends upwards and backwards, is pressed up on the underside of the upper part of the back room (3c), whereby a pointer part (38), which is the pointer means of the measuring memory or each separate measuring memory (32) and which from the fastening of the friction part

(37) and the frame (34) protrudes over the scale of measurements (29), is prevented from bearing against the underside of the upper part of the back room (3c), so that no scratches appear along the same above the scale of measurements (29), and that the pointer part

(38) is kept in a straight position a distance over the scale of measurements (29), without tilting down on the same when one displaces the measuring memory or each separate measuring memory (32), by that the upside of the displacement part (33) also bear against the underside of the upper part of the back room (3c), and that by the described clamping position of the measuring memory or each separate measuring memory (32) between the upper part of the back room (3c) and the slide bar (30), and by the described forms of the score (36) and the slide bar (30), the score (36) is prevented from gaping on the slide bar (30) and thereby the pointer part (38) is prevented from getting in oblique position, so that when one adjusts the measuring memory or each separate measuring memory (32) on a measure, incorrect and uncertain degree stroke indication will not occur by the pointer part (38) on the scale of measurements (29), and that by mentioned clamping position and mentioned forms the measuring memory or each separate measuring memory (32) can be preserved locked precisely on an adjusted measure on the scale of measurements (29), even when removing the ruler (25).

10. Ruler (1;25;2,5,26) according to any of the claims 2 - 5, 7 - 9, c ha r a c t e r i z e d by that in one short side a short insert form (4a;4c) is casted in one with the upper part (3a,b;3c) and the bottom part (2;2a;2,2a) and that in the other short side a separate short insert form (4b;4d) is fixed between the bottom part (2;2a;2, 2a) and the upper part (3a,b;3c) and joined with these.

11. Ruler (1;25;2,5,26) according to any of the claims 2 - 10, c h a r a c t e r i z e d by that one or more measuring memories are arranged with one or more measuring memory holes and that to at least one scale of measurements one or more rows of figures are arranged in such a way that when a measuring memory is set on a certain de gree stroke, a figure from the row or rows, which corresponds to this degree stroke, is seen in the measuring memory hole or the measuring memory holes.

12. Ruler (1;25;2,5,26) according to claim 11, c h a r a c t e r i z e d by that at least one measuring memory hole is supplied with an enlargement glass.

13. Ruler (1; 25; 2,5, 26) according to any of the above claims, c h a r a c t e r i z e d by that the ruler has one measuring memory parking room or several measuring memory parking rooms.

14. Ruler (1;25; 2,5, 26) according to any of the above claims, c h a r a c t e r i z e d by that the ruler (1) is supplied with at least one ruler grip (24).