GB190417035A - Improvements in Calculating Machines - Google Patents

Improvements in Calculating Machines

Info

Publication number
GB190417035A
GB190417035A GB190417035DA GB190417035A GB 190417035 A GB190417035 A GB 190417035A GB 190417035D A GB190417035D A GB 190417035DA GB 190417035 A GB190417035 A GB 190417035A
Authority
GB
United Kingdom
Prior art keywords
bars
rollers
springs
turning
bands
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
Application number
Inventor
Gustav Adolf Bahmann
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
Application granted granted Critical
Publication of GB190417035A publication Critical patent/GB190417035A/en
Expired legal-status Critical Current

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Abstract

17,035. Bahmann, G. A. Aug. 3. Calculating -apparatus. - Calculator rolls for multiplication and division are made with three separate bands mounted on separate rollers, but turning together, and bearing the products ( 1 to 50) X ( 1 to 50), (1 to 50) x (51 to 100), and (51 to 100) x (51 to 100). respectively. To counteract the effect of dampness on ribbons of linen or similar material, the smaller rollers are mounted on side-bars m, pivoted at l, guided in slots, and supported by springs n. The larger rollers are geared together by friction-wheels or otherwise, and are turned simultaneously by means of a handle on the shaft of the middle roller. The springs n also serve to keep the bands in position after turning. The cross-bars o, p, q show the respective factor-figures 1 to 50, 1 to 50, 51 to 100. Indicators r, s, t are movable on guide-bars u, v, w. To economize space, the product numbers may be arranged in their squares in a diagonal direction.
GB190417035D 1904-08-03 1904-08-03 Improvements in Calculating Machines Expired GB190417035A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190417035T 1904-08-03

Publications (1)

Publication Number Publication Date
GB190417035A true GB190417035A (en) 1905-06-15

Family

ID=32544692

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190417035D Expired GB190417035A (en) 1904-08-03 1904-08-03 Improvements in Calculating Machines

Country Status (1)

Country Link
GB (1) GB190417035A (en)

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