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US1912874A - Calculating machine - Google Patents

Calculating machine Download PDF

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Publication number
US1912874A
US1912874A US1912874DA US1912874A US 1912874 A US1912874 A US 1912874A US 1912874D A US1912874D A US 1912874DA US 1912874 A US1912874 A US 1912874A
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US
United States
Prior art keywords
calculating machine
walter
june
sheets
sheet
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
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Publication of US1912874A publication Critical patent/US1912874A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06C—DIGITAL COMPUTERS IN WHICH ALL THE COMPUTATION IS EFFECTED MECHANICALLY
    • G06C15/00—Computing mechanisms; Actuating devices therefor
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06C—DIGITAL COMPUTERS IN WHICH ALL THE COMPUTATION IS EFFECTED MECHANICALLY
    • G06C15/00—Computing mechanisms; Actuating devices therefor
    • G06C15/08—Multiplying or dividing devices; Devices for computing the exponent or root

Definitions

  • WALTER I 1 CALCULATING MACHINE Filed May 21, 1931 20 Sheets-Sheet 2 ⁇ g V v INVENTOR M, EdwariCWltfir 0% Jam ,4 TTORNE y .4 TORNEY June 6, 1933.
  • E. c. WALTER CALCULATING MACHINE Filed May 21, 1951 20 Sheets-Sheet a Z NM i .w

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Paper (AREA)

Description

June 6, 1933.
E. c. WALTER CALCULATING MACHINE Filed May 21, 1931 OOOOOOOOOO' OOOOOOOOOO 0009000009 (3000000000 0000000000 @OOOOQOOO 20 SheetsSheet 1 @OOOQOOOO N3 W33 OOQOOOOOOO i OOOOOOOGOO OOOOOO0OO OOQOOOOOOO OOOOOOOOO 0000600000 @OOOOOOOO@ I EdwardCWaHU Glam/" June 6, 1933. E. c. WALTER I 1 CALCULATING MACHINE Filed May 21, 1931 20 Sheets-Sheet 2 \g V v INVENTOR M, EdwariCWltfir 0% Jam ,4 TTORNE y .4 TORNEY June 6, 1933. E. c. WALTER CALCULATING MACHINE Filed May 21, 1951 20 Sheets-Sheet a Z NM i .w
June 6, 1933. E. c. WALTER 1,912,874
CALCULATING MACHINE $31 attorney;
E. C. WALTER CALCULATING MACHINE June 6, 1933.
20- Sheets-Sheet 5 Filed May 21, 1931 l R 3 Y A WK v \\\\\lk\\\\\\\\\\ H\\\\\\\\\\\\\\\\ i mmm 1 C Y Rmm MB 1 E w Rm Q Q 7 v 5% a wfl 6m m O E m w w r v N M r Qw nil u U I lfi I I III;
Gum
E. C. WALTER CALCULATING MACHINE 2o Sheets-Sheet 6 Filed May 21, 1931 mam mum
mQm
Svwemtoz 2 Edward, C
e NE X Jun 6, 1933.
June 6, 1933. E. c. WALTER CALCULATING MACHINE Filed May 21, 1931 I I I I I I I I I I I I I I I I I I I I I I INVENTOR Eawarii (.Walter E. C. WALTER CALCULATING MACHINE June 6, 1933.
Filed May 21, 1931 2Q Sheets-Sheet 8 7\ llllllllll. |l|ll|lll.lll|l||.|lllllll| lllllllllllllllllll'lll I H o o m fi Q ww mG 3 ll. r 1 X m mm a c r L i K June 6, 1933. E. c. WALTER CALCULATING MACHINE Filed May 21, 1931 20 Sheets-Sheet 9 TT L 11v VENTOR BY Eawaha ('.W& 71 6!" fi mm vky June 6, 1933. E. c. WALTER CALCULATING MACHINE Filed May 21 1931 20 Sheets-finest 1o INVENTOR alter ATTORNEY June 6, 1933.
E. C. WALTER CALCULATING MACHINE Filed May 21, 1931 20 Sheets-Sheet ll INVENTIHx' VVilter Edna-aha C #12:;
June 6, 1933. 'E. c. WALTER 1,912,874
CALCULATING MACHINE Filed May 21, 1931 20 Sheets-Sheet 12 [NVENTOR A TTORNE' Y CALCULATING MACHINE Filed May 21, 1931 20 Sheets-Sheet l3 wueutoz Ed ard QWlceb $1 (1410144011 June 6, 1933. E. c. WALTER 1,912,874
CALCULATING MACHINE Filed May 21, 1951 20 Sheets-Sheet 14 June 6, 1933. E, c WALTER 1,912,874
- CALCULATING MACHINE Filed-May 21, 1931 20 Sheets-Sheet 15 Et /(1Q. 22
INVENTOR Eiwa r g W5 2i ATTORNEY June 6, 1933. v E. c. WALTER 1,912,874
CALCULATING MACHINE Filed May 21, 1931 20 Sheets-Sheet 16 AV 1 ENTOR June 6, 1933. E. c. WALTER CALCULATING MACHINE Filed May 21, 1931 20 Sheets-She l7 R .C. M k 3% 1/ iv hmw Q w q k 1,. m 5 n M n u u A TTOR/VE V June 6, 1933;. E. g. WALTER 1,912,874
' CALCULATING MACHINE Filed May 21, 1951 lllllll] 5 O I v INVENTOR 62 I BY Elyvarcl C- W'Q Iteh A TTORX E y I June 6,1933. E, Q WALTER 1,912,874
CALCULATING MACHINE Filed May 21, 1931 20 Sheets-Sheet 19 11v VENTOR Edward. C. \M57t er IH' g 2 A IToRNb" Y June 6, 1933. E. c. WALTER,
CALCULATING MACHINE 2O Sheets-Sheet 20 R. Y E84 0 M n C in w v d d
US1912874D Calculating machine Expired - Lifetime US1912874A (en)

Publications (1)

Publication Number Publication Date
US1912874A true US1912874A (en) 1933-06-06

Family

ID=3425478

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US1912874D Expired - Lifetime US1912874A (en) Calculating machine

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2581624A (en) * 1952-01-08 Early factor mechanism
US2768788A (en) * 1956-10-30 davis

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2581624A (en) * 1952-01-08 Early factor mechanism
US2768788A (en) * 1956-10-30 davis

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