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Monroe Calculating Machine Company

The Monroe Calculating Machine Company was a maker of adding machines and calculators founded in 1912 by Jay R. Monroe and Frank Stephen Baldwin based on a machine designed by Frank Stephen Baldwin.



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Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Publication B-182, a guide for teaching the use of Monroe mechanical calculators using the Monroe Educator model of calculator. This copy is the 18th printing (June 1961) of the original 1947 document.
Topics: calculator, mechanical calculator, monroe calculating machine, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Publication B-154, covering basic algebra, and how to rearrange formulas for efficient calculation on a Monroe mechanical calculator.
Topics: calculator, mechanical calculator, monroe calculating machine, monroe
Book 1 of 6 of a service training manual for the Monroe Calculating Machine Company. The envelope of product photos referred to at the end of the book is not present. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, monroe calculating machine, monroe
Monroe Calculating Machine Company
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The Monroe Calculating Machine (Office Machine Practice series) By Chester H. Katenkamp The Gregg Publishing Company 1931 58 page stapled book 142mm × 204mm
Topics: Mechanical calculator, Monroe, Instruction manual
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 177, describing the functioning and retrofitting to the LA-5 and LA-6 model mechanical calculators of an improved division lever return mechanism. The company wanted all existing and new LA-6 calculators to be retrofitted with this modification. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, monroe calculating machine, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Form 769-S, how to compute square roots on a Monroe mechanical calculator.
Topics: calculator, mechanical calculator, monroe calculating machine, monroe
Monroe Form 1038-S, describing how to perform statistical calculations such as means, standard deviations, linear correlations on the general CAA-10 electromechanical calculator and on the statistics-oriented CAA-10-3-S.
Topics: calculator, mechanical calculator, monroe calculating machine, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 516, cataloging all parts used in gN-162 and 6N-212 models of mechanical calculator, with part numbers and prices. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, monroe calculating machine, mechanical calculator, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
texts

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Monroe Machine Service Bulletin No. 116-A, supplementing plate #12 in MSB 116. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, monroe calculating machine, mechanical calculator, monroe
Monroe Calculating Machine Company
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Instruction book for the Monroe KA series of electromechanical calculator. Also known as Form 660 S. Originally printed 1928, this copy is a reprint edition from 1943.
Topics: Calculator, Instructions, Monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 205, instructions for installing condensers for DC motors on the LA, MA, and Gardner mechanical calculator. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, monroe calculating machine, mechanical calculator, monroe
Monroe Calculating Machine Company
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Book 4 of 6 of a service training manual for the Monroe Calculating Machine Company. Download the file to see the foldouts at the end -- the Archive's viewer doesn't seem to be able to handle different-sized pages very well. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, mechanical calculator, monroe calculating machine, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 288, describing the retrofit of a locator arm mechanism on the LA, LA-5 and LA-6 models of mechanical calculator for prevention of stopping off-center. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, mechanical calculator, monroe calculating machine, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 161 Supplement B, the third installment describing the functioning and adjustment of the LA-6 model mechanical calculator. Other supplements contained more description. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, mechanical calculator, monroe calculating machine, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 415, describing the shift mechanism in the LA-5 and LA-6 model mechanical calculators. This document was incomplete: it mentions a large drawing which was not included. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, mechanical calculator, monroe calculating machine, monroe
Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 135, a parts and price list for KA 203-13, KAS 203-13, KA 263 and KAS 263 model mechanical calculators. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, monroe calculating machine, mechanical calculator, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 127, describing the second version of the motor power unit for MA mechanical calculators. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company
Topics: calculator, monroe calculating machine, mechanical calculator, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Publication B-251, a better way to teach arithmetic with the Monroe Educator Calculating Machine.
Topics: calculator, mechanical calculator, monroe calculating machine, monroe
Monroe Machine Service Bulletin No. 420-A, describing the functions of, and how to disassemble, reassemble and lubricate, the L-160-X and L-200-X models of mechanical calculator. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, mechanical calculator, monroe calculating machine, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Instruction manual for the Monroe D through G model mechanical calculator.
Topics: calculator, monroe calculating machine, mechanical calculator, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 34, an illustrated service manual for the K0 and KA0 model mechanical calculators, including drawings of all tools required. In preparing this manual, the engineers completely disassembled, reassembled, and adjusted a K0 and KA0 16-place machine, documenting each step along the way. MSB 34-A, dated 15 June 1926, is included in this copy. It is a one-page bulletin intended to go with plate 22, giving a sequence of selecting gears which helped to standardize...
Topics: calculator, monroe calculating machine, mechanical calculator, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe publication 1231-S, an instruction manual for the LA-9 mechanical calculator.
Topics: calculator, mechanical calculator, monroe calculating machine, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 108-B, a price list for KASC model mechanical calculators. This eight-page list superseded the original seven-page price list from bulletin 108, whose list field offices were instructed to destroy. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, monroe calculating machine, mechanical calculator, monroe
Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 221, describing changes made in L and M model mechanical calculators to solve various issues. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, mechanical calculator, monroe calculating machine, monroe
Monroe Calculating Machine Company
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Instruction booklet for the Monroe LA series electromechanical calculators.
Topics: monroe, monroe machine, monroe calculator
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 100-B, specifying the condenser and resistor values for the 105-volt motor used in the LA model of mechanical calculator. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, monroe calculating machine, mechanical calculator, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 114, describing the fix for the KASC model mechanical calculator adding before shifting. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, monroe calculating machine, mechanical calculator, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Calculations and instructions for use with the obsolete Monroe electromechanical calculators, specifically, the model 8N.
Topics: monroe, monroe calculator, monroe machine, calculator
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Special Service Letter 106, 400 series machines red print feature, describing installation of the red print special feature. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, mechanical calculator, monroe calculating machine, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Publication 1191-S, on how to extract square roots, cube roots, and higher roots, with tables for up to 10th roots. 
Topics: calculator, mechanical calculator, monroe calculating machine, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Contract No. GS-00S-15300, the 1958 price list for the United States Government. Describes and depicts all the models of Monroe calculator available to the government in 1958, along with prices, discounts for volume, and prices for rental and maintenance. Found on Ed Thelen's site (ed-thelen.org), this document was originally obtained from LaFarr Stuart, who obtained it from a Monroe salesman.
Topics: calculator, monroe calculating machine, mechanical calculator, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 422, describing the inspection, disassembly, cleaning, reassembly, lubrication and testing of all Monroe mechanical calculator models using small motors. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, mechanical calculator, monroe calculating machine, monroe
Monroe Calculating Machine Company
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Advertisements from Railway Age Gazette, June 22, 1917. Pages 25 and 26.
Topics: Monroe Calculating Machine Co, Nicholson File Company
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Publication 1250-A, a sales brochure for the Monroe 820, 920, 950, 990, 570 and 150 electronic calculators. Unknown year, but probably the 1970s.
Topics: calculator, monroe calculating machine, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 165, describing the functioning and retrofitting of a locking mechanism to the LA-6 model mechanical calculator. The locking mechanism prevented the multiplication lever from being operated when the carriage was in the first or second position. The company wanted all existing and new LA-6 calculators to be retrofitted with this modification. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating...
Topics: calculator, monroe calculating machine, monroe
Monroe Calculating Machine Company
by William Edward Ross
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Article in Joe Mitchell Chapple's National Magazine, Apr 1919, about the Monroe Calculating Machine Company and Jay Randolph Monroe.
Topics: calculator, monroe calculating machine, mechanical calculator, monroe, national magazine, joe...
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 358, describing the adjustment for a condition where the LA-5 and LA-6 models of mechanical calculator would run continuously during automatic division and multiplication. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, mechanical calculator, monroe calculating machine, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 430, describing a washer being added to the LA-5 and LA-6 models of mechanical calculator to prevent prevent misalignment of parts after automatic division. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, monroe calculating machine, mechanical calculator, monroe
Notes made by one M. H. Hitchcox on Monroe Service Bulletin 440-D pages 102 through 113, with a two-page annex not included in the MSB consisting of points to check in setting up CAA-10s.
Topics: calculator, mechanical calculator, monroe calculating machine, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Publication B-243, about a study performed by Dr Howard F Fehr on whether the use of calculators in the classroom made students enjoy arithmetic more.
Topics: calculator, mechanical calculator, monroe calculating machine, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 125, describing four improvements to KAS, KAA, C and E model mechanical calculators. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, monroe calculating machine, mechanical calculator, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 507, describing a change in color scheme for the LA-7 and LN models of mechanical calculator . The "color coding" referred to shows what color each exterior part is by symbols. Also gives the part numbers and list prices for each such part. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, monroe calculating machine, mechanical calculator, monroe
Book 2 of 6 of a service training manual for the Monroe Calculating Machine Company. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, mechanical calculator, monroe calculating machine, monroe
Monroe Machine Service Bulletin No. 50, collecting all changes in design and new features in the K model mechanical calculator up to date. There is no cover letter in this copy of the bulletin, but the date is estimated to be between May and December 1927 based on the dates of surrounding bulletins. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company
Topics: calculator, monroe calculating machine, mechanical calculator, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 161 Supplement C, the fourth installment describing the functioning and adjustment of the LA-6 model mechanical calculator. Other supplements contain further description. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, mechanical calculator, monroe calculating machine, monroe
Press photo, September 9, 1930 at the Monroe Calculating Machine Company.
Topics: monroe calculator, monroe machine, monroe calculating machine company
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 40D, describing some adjustments to the KAA models 1 and 2 of mechanical calculator. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, monroe calculating machine, mechanical calculator, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 36, 36A and 36B, covering details about AC and DC motors used in the K models of mechanical calculator. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, monroe calculating machine, mechanical calculator, monroe
Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 95C, the illustrated parts and assemblies price list for the L model of mechanical calculator. The models covered are: L 1207 L 160 and L 200 LA 160 and LA 200 L 160-X and L 200-X LA 160-X and LA 200-X This MSB obsoleted and superseded MSB95 and MSB95A, and so ordered that they be destroyed. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, monroe calculating machine, mechanical calculator, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 193, describing some adjustments for specific problems. This is a June 1945 reprint of the original 1934 document. Based on comparisons of other reprints, this document was most likely generated from the original mimeograph masters with the exception of a small reprint notice. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, mechanical calculator, monroe calculating machine, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Form 991-S, a table of dividing factors for square roots, along with instructions for use. See also: 994-S (Table of multiplying factors for square roots) 769-S (Machine methods for the extraction of square root) 1191-S (Simplified methods for extracting roots) 1228-S (Simplified method for extraction of square root)
Topics: calculator, monroe calculating machine, mechanical calculator, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 108-A, description and retrofit instructions for plus, minus, and shift key locks on KAE and KASC model mechanical calculators. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, monroe calculating machine, mechanical calculator, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 195, describing new adjustment instructions for the LA-6-W model of mechanical calculators. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, mechanical calculator, monroe calculating machine, monroe
Monroe Calculating Machine Company
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Advertisements from Railway Age, June 14, 1920. Pages 39 and 40.
Topics: Monroe Calculating Machine, L C Chase & Co, The American Automatic Connector Co, Mohawk...
Photo, February 1946, of the Monroe Calculating Machine Company factory on Boylston and Exeter in Boston, Massachusetts. Taken standing on the east side of Exeter street facing north. Also contains Huntt's Cafeteria on the ground floor and the Exeter Street Theatre.
Topics: monroe calculator, monroe machine, monroe calculating machine company, factory, huntt's cafeteria,...
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe publication GS-713, instruction manual for the Simplex Electric Models 410-11-011 and 408-11-011 mechanical printing adding machines.
Topics: calculator, mechanical calculator, monroe calculating machine, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 100-C, specifying changed voltage range for a motor used in the LA model of mechanical calculator. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, monroe calculating machine, mechanical calculator, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 40P, describing some adjustments to the KAA models 1 and 2 of mechanical calculator. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, monroe calculating machine, mechanical calculator, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Form 1228-S, a double-sided card on how to extract square roots, with a table of factors.
Topics: calculator, monroe calculating machine, mechanical calculator, monroe
Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 167, describing the functioning and retrofitting to the LA-6 model mechanical calculator of a mechanism which automatically controlled the repeat and non-repeat keys. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, monroe calculating machine, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 161, the first installment describing the functioning and adjustment of the LA-6 model mechanical calculator. Subsequent supplements continued the description. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, mechanical calculator, monroe calculating machine, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 510, describing the retrofit of an item counter for LA-7, LN, and LNX models of mechanical calculator. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, monroe calculating machine, mechanical calculator, monroe
Monroe Calculating Machine Company
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A short article, "Leaps from 13th floor of Woolworth Building" from the Los Angeles Evening Herald, 19 Feb 1919, Page 11. A Monroe salesman, Richard Dwight Hutchins, had leapt to his death from a 13th floor Monroe office.
Topics: los angeles evening herald, woolworth building, suicide, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 36D, describing a required adjustment when installing a new start and stop switch for the K models 1A, 2A, 1AA, and 2AA (but not 0A) of mechanical calculator. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, monroe calculating machine, mechanical calculator, monroe
Monroe Calculating Machine Company
by Monroe International
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The second edition of the 1965 Orangeaid published by Monroe International, a division of Litton Industries. Contains some information about Monroe's calculators, but mostly feel-good quotes and letters, including an amusing warning about THE COMMUNISM!
Topics: monroe calculating machine, calculator, orangeaid, litton industries
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 244, describing a change to the through-carry unit and automatic multiplication mechanism of the LA-6-200-C mechanical calculator. The change was not to be retrofitted to existing models. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, mechanical calculator, monroe calculating machine, monroe
Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 32, describing a fix for the condition where repeated carriage shifting from extreme to extreme can cause the carry mechanism to fail on K series "2" mechanical calculators. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, monroe calculating machine, mechanical calculator, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 40C, describing some adjustments to the KAA models 1 and 2 of mechanical calculator. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, monroe calculating machine, mechanical calculator, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 113, describing installation of insulation on a connector in the LA model mechanical calculator. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, monroe calculating machine, mechanical calculator, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 238, describing an issue with the registering dials on LA-6-W and LA-6-C model mechanical calculators which can be solved with changed parts. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, mechanical calculator, monroe calculating machine, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 40N, describing some adjustments to the KAA models 1 and 2 of mechanical calculator. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, monroe calculating machine, mechanical calculator, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 257, describing an adjustment for satisfactory shift of the carriage on LA-5 and LA-6 model mechanical calculators, after all other adjustments have been exhausted. This copy appears to be a reprint of an original document which, based on MSB numbering and dates, would have been originally published between 30 December 1935 and 26 June 1936. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating...
Topics: calculator, mechanical calculator, monroe calculating machine, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 358, describing the adjustment for a condition where the LA-5 and LA-6 models of mechanical calculator would run continuously during automatic division and multiplication. This copy is an April 1946 reprint of the original 1940 document. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, mechanical calculator, monroe calculating machine, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 112A, describing adjustments for the clear-out lock for KA "C" and "E" model mechanical calculators. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, monroe calculating machine, mechanical calculator, monroe
Monroe Calculating Machine Company
by Monroe Calculating Machine Company
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Monroe Machine Service Bulletin No. 48, describing the difference between K "3" series and other K model mechanical calculators. This copy was scanned from a set of documents originally kept at the Toledo, Ohio branch of the Monroe Calculating Machine Company.
Topics: calculator, monroe calculating machine, mechanical calculator, monroe