US3831840A - Composite slide rule - Google Patents

Composite slide rule Download PDF

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Publication number
US3831840A
US3831840A US00336622A US33662273A US3831840A US 3831840 A US3831840 A US 3831840A US 00336622 A US00336622 A US 00336622A US 33662273 A US33662273 A US 33662273A US 3831840 A US3831840 A US 3831840A
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US
United States
Prior art keywords
lines
breadth
slide
printed
casing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00336622A
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English (en)
Inventor
P Faucheux
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.)
FRESA Ets
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FRESA Ets
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 FRESA Ets filed Critical FRESA Ets
Application granted granted Critical
Publication of US3831840A publication Critical patent/US3831840A/en
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Expired - Lifetime legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G1/00—Hand manipulated computing devices
    • G06G1/0005—Hand manipulated computing devices characterised by a specific application
    • G06G1/0047—Hand manipulated computing devices characterised by a specific application for printing
    • 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

Definitions

  • an elongated casing with a plurality of parallel channels the cross-section of [52] US. Cl 235/89 R which is preferably in the shape of a regular polygon [51 Int. Cl G06C 3/00 such as an equilateral triangle, these channels slidingly Field of Search 235/69, 70, 85, 7, 89 housing prismatic slides of a corresponding crosssection, the sides of which carry each along its oppo- [56] References Cited site edges cooperating scales of character and line UNITED STATES PATENTS numbers for a predetermined type breadth.
  • the present invention has for its object a composite slide rule providing a particular means for selecting the standard type, that is the breadth of the type to be used, taking into accountthe number of signs to be printed and the number of lines available when making up and imposing any matter to be printed'
  • This improved slide rule also affords means for reckoning, starting from a known number of characters and spacings in a text, the number of lines which is to make up said text, taking into account the relative breadth of type used, that is. the actually available number of characters per line for a given breadth of column.
  • the improved slide rule allows furthermore a suitable breadth of type to be selected.
  • the slide rule includes a set of scale carrying members or slides corre'sponding each to different breadths of printing types, the scales on each of said members showing for the 'eorresponding breadth the number of types to be used for different numbers of printed lines.
  • FIGS. 1 and 2- are general perspective views of the slide rule as seen from above andfrom below respectively.
  • 1 I FIG. 3 is a perspective view of a detail showing one of the slides of the slide rule according'to FIG. 1.
  • FIG. 4 showson a larger scale a fraction of one surface of said slide.
  • the slide rule illustrated includes a set of slides 1 the cross-section of which is in the shape of an equilateral triangle, said slides sliding in parallel guideways formed in a casing 2 having a trapezoidal cross-section.
  • Said casing 2 is provided with five longitudinal guideways or channels 3 to 7, the cross-sections of said channels being in the shape of equilateral triangles so as to slidingly house the corresponding slides l.
  • Each of the three longitudinal sides of each slide 1 carries along each of its longitudinal edges a scale
  • scale formed along the edge shown at 8 to the left in FIG. 4 is a scale of numbers of. lines whereas the scale along the edge shown at 9 to the right in FIG. 4 is a scale of the numbers ,of types included in the-lines the number of which appears in registry with the number of types considered on the opposite edge of the slide side.
  • the number of types obviously depends on the breadth of the type considered, the number of types per line being recorded at the end of the slide side 10 along the transverse edge thereof.
  • a line of types of a breadth No. 85 includes 85 types as shown in FIG. 4; five lines include 425 types,
  • the gates 12, 13 and 15-17 formed in the outer surface of the casing 2 serve, on the one hand, for ascertaining the number of types of a given breadth which corresponds to a predetermined number of lines and, on the other hand, for comparing the data given out by slides corresponding to different type breadths.
  • Flat slides may also be provided so as to be slidingly fitted in slideways or .channels of a corresponding shape, similar to those of a conventional slide rule.
  • the marking may be executed along the very edge of the slides or again by means of an advantageously transparent slider, of the kind used in conventional slide rules.
  • a composite slide rule for providing the relationship between the breadth of a particular size of type to be used, the number of characters to be printed and the number of lines to be printed with said type comprising, an opaque casing trapezoidal in cross section and provided with five parallel longitudinal channels, said channels each having the shape of an equilateral triangle, the base of one channel adjoining an apex of an adjacent channel, a pair of viewing openings in one parallel side of said casing and three viewing openings in the opposite parallel side of said casing, a prismatic equilateral shaped scale carrying slide disposed in each of said channels, each side of each of said slides bearing indicia relating to a number of lines and a corresponding number of characters, each end of each said slide bearing indicia indicating a breadth of type relating to that particular side whereby reciprocating a selected slide in its related channel provides the user with the number of type characters and spaces relative to the number of lines available for printing when the selected number of lines appears in the related viewing opening.

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Character Spaces And Line Spaces In Printers (AREA)
  • Credit Cards Or The Like (AREA)
  • Dot-Matrix Printers And Others (AREA)
US00336622A 1972-03-01 1973-02-28 Composite slide rule Expired - Lifetime US3831840A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH301572A CH556060A (fr) 1972-03-01 1972-03-01 Dispositif pour faciliter la lecture de reglettes graduees.

Publications (1)

Publication Number Publication Date
US3831840A true US3831840A (en) 1974-08-27

Family

ID=4246717

Family Applications (1)

Application Number Title Priority Date Filing Date
US00336622A Expired - Lifetime US3831840A (en) 1972-03-01 1973-02-28 Composite slide rule

Country Status (8)

Country Link
US (1) US3831840A (it)
JP (1) JPS48101990A (it)
CH (1) CH556060A (it)
DE (1) DE2216407A1 (it)
FR (1) FR2174601A5 (it)
GB (1) GB1393502A (it)
IT (1) IT977902B (it)
NL (1) NL7302266A (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4272674A (en) 1977-10-31 1981-06-09 Tokyo Keiki Company Ltd. Check digit calculator
JPS5463642A (en) 1977-10-31 1979-05-22 Tokyo Keiki Kk Check digit calculator

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US67269A (en) * 1867-07-30 coffin
US1354977A (en) * 1916-10-03 1920-10-05 Charles T Kammeyer Type-gage
US2643058A (en) * 1951-07-23 1953-06-23 Michael J Quillinan Slide rule
US3197135A (en) * 1963-07-24 1965-07-27 Turner M Osler Slide rule
US3272431A (en) * 1965-07-15 1966-09-13 Cesar M Dablo Fraction-decimal calculator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US67269A (en) * 1867-07-30 coffin
US1354977A (en) * 1916-10-03 1920-10-05 Charles T Kammeyer Type-gage
US2643058A (en) * 1951-07-23 1953-06-23 Michael J Quillinan Slide rule
US3197135A (en) * 1963-07-24 1965-07-27 Turner M Osler Slide rule
US3272431A (en) * 1965-07-15 1966-09-13 Cesar M Dablo Fraction-decimal calculator

Also Published As

Publication number Publication date
CH556060A (fr) 1974-11-15
JPS48101990A (it) 1973-12-21
IT977902B (it) 1974-09-20
DE2216407A1 (de) 1973-09-06
FR2174601A5 (it) 1973-10-12
NL7302266A (it) 1973-09-04
GB1393502A (en) 1975-05-07

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