EP0372607A2 - Règle à calcul en carton ou similaire pour table de conversion, répertoires d'adresses et références similaires - Google Patents

Règle à calcul en carton ou similaire pour table de conversion, répertoires d'adresses et références similaires Download PDF

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Publication number
EP0372607A2
EP0372607A2 EP89202934A EP89202934A EP0372607A2 EP 0372607 A2 EP0372607 A2 EP 0372607A2 EP 89202934 A EP89202934 A EP 89202934A EP 89202934 A EP89202934 A EP 89202934A EP 0372607 A2 EP0372607 A2 EP 0372607A2
Authority
EP
European Patent Office
Prior art keywords
board
sliding
sliding rule
rule
intermediate area
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.)
Withdrawn
Application number
EP89202934A
Other languages
German (de)
English (en)
Other versions
EP0372607A3 (fr
Inventor
Ettore Fulgenzi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0372607A2 publication Critical patent/EP0372607A2/fr
Publication of EP0372607A3 publication Critical patent/EP0372607A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G1/00—Hand manipulated computing devices
    • G06G1/02—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales
    • G06G1/04—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales characterised by construction
    • G06G1/06—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales characterised by construction with rectilinear scales, e.g. slide rule

Definitions

  • This invention is concerned with a sliding rule made of cardboard or other similar stiff material.
  • a cardboard tablet is slidable in a sheath similarly made of cardboard, and a set of windows cut in the sheath allow exposure of inscriptions printed on the tablet and correlated with other legends shown on the sheath itself.
  • the cardboard is usually plastic-coated.
  • a sliding rule as described above is often used as a promotional article, or as an accessory for books, guides and the like, due both to the low cost of cardboard and of its processing methods (printing, punching) and to its flat, unobtrusive shape.
  • the essential aim of the invention is therefore to provide a sliding rule in the manufacture of which the step of manual insertion of the sliding tablet in the sheath can be dispensed with, with attendant drastic reduction of its manufacturing cost.
  • Another advantage is the concurrent reduction of the overall manufacturing times of the sliding rule.
  • a sliding rule for conversion tables, directories and the like comprising a flat, window-bearing sheath of a stiff material, in which a sliding tablet of the same material is received, the sheath and the sliding tablet bearing correlated inscriptions or pictures, characterized in that it is made from a single blank of said stiff material, comprising a first and a second board, of which at least one has windows, integrally joined and folded one upon the other and laterally bonded to form said sheath, and a third board which is end-joined to said second board through an intermediate area, and is folded between said first and second board around a folding line at the midline of said intermediate area, the intermediate area being removed for using the sliding rule, said third board acting as sliding tablet.
  • a punched cardboard blank for the manufacture of a sliding rule substantially comprises three boards integrally joined to form an inverted L.
  • a first board 10 has preestablished windows such as 11, a second board 12, side-by-side with the first, also has windows such as 13, and a third, lower board, 14 is joined to the second board 12.
  • a folding line 16 is shown dashed between boards 10 and 12, and another folding line 18 is shown dashed between boards 12 and 14.
  • Board 12 is overhanging over board 14, and has an integral, auxiliary flap 20, with a further folding line 22 shown dashed between board 12 and flap 20.
  • An intermediate area 23 between board 12 and board 14, straddling folding line 18, is defined by two perforated (or otherwise weakened) lines 24, 26, parallel to folding line 18 and symmetrical with respect to it, and shown dotted.
  • One or both boards 10 and 12 bear desired inscriptions on their faces opposite the ones that are visible on Fig. 1, in a way known per se, and board 14 also carries similar desired inscriptions on one or both of its faces, which are correlated with the inscriptions on the other two boards.
  • the blank of Fig. 1 can be conveniently made by punching a preprinted cardboard, by means known in the art.
  • an asseembled article as shown on Fig. 4 is obtained.
  • the article thus obtained can be supplied as such to the user, who, before use, will have to tear off the intermediate area along perforated lines 24, 26, thus freeing board 14, which can now slide between the other two boards 10 and 12, forming the sheath of the sliding rule.
  • the portion to be torn away has the further advantage that it can act a warranty seal, and assure the user that the sliding rule is actually new from factory.
  • the article can be subjected to a further shearing step to remove such intermediate area.
  • Flap 20 which is sandwiched between boards 10 e 12, acts as a reinforcement and a spacer between opposite walls of the sheath, to make the sliding of sliding tablet 14 easier.
  • the step of folding board 14 onto board 12 does not generate appreciable cost increases with respect to the prior art, and is easy to implement within the usual performance of known folding-­gluing machines, while the step of manual insertion of the sliding tablet into the sheath totally eliminated.
  • Fig. 5 shows a cardboard blank for the manufacture of a sliding rule according to a second embodiment of the invention. It substantially comprises three boards 30, 32, 34, integrally joined together end to end. Board 30 has windows 31 and is similar to board 10 of Fig. 1. Board 32, also cut with windows 33, has lateral auxiliary flaps 36, 38, integrally extending beyond the width of board 30. Dashed folding lines are shown with 40 between boards 30 and 32, and with 42, 44 between board 32 and lateral flaps 36, 38. Finally, from the opposite side of board 32 an intermediate area 46 extends integrally, and further extends integrally with board 34, with perforated lines 48, 50 which define it respectively on the side of board 32 and on the side of board 34. A folding line 52 is scored along the midline of intermediate area 46.
  • Board 34 is as long as boards 30 and 32, but is appreciably narrower, and, more exactly, it is slightly narrower than the width of the central area of board 32, minus the total of the widths of flaps 36, 38. Boards 30, 32 and 34 bear desired inscriptions similarly to the first embodiment.
  • the blank described above is assembled to build a complete sliding rule by means of the following assembly steps:
  • the second embodiment has the same features and advantages as the first, but it also has the added advantage that it has symmetrical spacers beside the tablet sliding within the two outside boards, and moreover it has a travel stop for the movement of the sliding tablet during use, the stop being the joint between boards 30 and 32. Use is identical with the first embodiment. The user will have, also in this case, to tear away the intermediate area 46 along perforated lines 48, 50.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Cartons (AREA)
  • Medicines Containing Plant Substances (AREA)
EP19890202934 1988-12-09 1989-11-20 Règle à calcul en carton ou similaire pour table de conversion, répertoires d'adresses et références similaires Withdrawn EP0372607A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT68100/88A IT1223984B (it) 1988-12-09 1988-12-09 Regolo scorrevole di cartone o simile per tabelle di conversione indirizzari e simili prontuari
IT6810088 1988-12-09

Publications (2)

Publication Number Publication Date
EP0372607A2 true EP0372607A2 (fr) 1990-06-13
EP0372607A3 EP0372607A3 (fr) 1990-10-03

Family

ID=11307855

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890202934 Withdrawn EP0372607A3 (fr) 1988-12-09 1989-11-20 Règle à calcul en carton ou similaire pour table de conversion, répertoires d'adresses et références similaires

Country Status (2)

Country Link
EP (1) EP0372607A3 (fr)
IT (1) IT1223984B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5678862A (en) * 1993-11-12 1997-10-21 No. 1 Little Collins St. Pty., Ltd. Indicating device
WO1998041945A1 (fr) * 1997-03-19 1998-09-24 Promo Service Di Michele Maffei & C. S.A.S. Regle a calcul et indicateur pouvant etre associes a des boites pour medicaments et autres articles
US20190375228A1 (en) * 2018-06-06 2019-12-12 Konstantinos Martinos Document case and template with decorative cover

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3025767A (en) * 1959-02-18 1962-03-20 John B Ruffalo Paper slide rule calculator
US3711014A (en) * 1971-08-16 1973-01-16 J Tucker Personal portfolio computer
US3902656A (en) * 1973-12-06 1975-09-02 Rothchild Printing Company Inc Slide calculator construction
US4233768A (en) * 1978-09-21 1980-11-18 Bromberg Howard M Slide calculator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3025767A (en) * 1959-02-18 1962-03-20 John B Ruffalo Paper slide rule calculator
US3711014A (en) * 1971-08-16 1973-01-16 J Tucker Personal portfolio computer
US3902656A (en) * 1973-12-06 1975-09-02 Rothchild Printing Company Inc Slide calculator construction
US4233768A (en) * 1978-09-21 1980-11-18 Bromberg Howard M Slide calculator

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5678862A (en) * 1993-11-12 1997-10-21 No. 1 Little Collins St. Pty., Ltd. Indicating device
WO1998041945A1 (fr) * 1997-03-19 1998-09-24 Promo Service Di Michele Maffei & C. S.A.S. Regle a calcul et indicateur pouvant etre associes a des boites pour medicaments et autres articles
US6393707B1 (en) 1997-03-19 2002-05-28 Promo Service Di Michele Maffei & C. S.A.S. Slide rule and indicator which can also be combined with boxes for medicines and other items
US20190375228A1 (en) * 2018-06-06 2019-12-12 Konstantinos Martinos Document case and template with decorative cover
US10625536B2 (en) * 2018-06-06 2020-04-21 Konstantinos Martinos Document case and template with decorative cover

Also Published As

Publication number Publication date
EP0372607A3 (fr) 1990-10-03
IT8868100A0 (it) 1988-12-09
IT1223984B (it) 1990-09-29

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