US Patent: 463,212
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| Combination Rule, Square, and Circle-Marker
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Patentee:
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| Anthony C. Fowler (exact or similar names) - New Utrecht, Brooklyn, Kings County, NY |
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Patent Dates:
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| Applied: |
Feb. 28, 1891 |
| Granted: |
Nov. 17, 1891 |
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Patent Pictures:
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Joel Havens
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Description: |
| An example is reported, marked "The Combination Rule, Square, & Compass. Pat'd June 10, 1891".
New Utrecht was a town in western Long Island; it was annexed by Brooklyn in 1892. In 1886 an A. C. Fowler was partner in Fowler & Fowler, New York attorneys specializing in electrical patents; this is likely a different person than our inventor. Anthony C. Fowler was living in Brooklyn in 1881 when he filed for a patent for a revolving table-top, which became patent #271,054. In 1903 an Anthony C. Fowler was living in Brooklyn and working as a roundsman at a naval station in New York City.
Abstract:
M1y invention relates to a measure of lengths so graduated and perforated at convenient T5 distances as to admit of its use to describe arcs of a circle, and also provided with such perforations at right angles to its sides as to permit of describing right angles or squares. The objects of my invention are to provide a measuring-rule by means of which circles or parts of circles of any given radius may be laid off without the use of a pair of com- passes, and by means of which right angles may also be laid off without the use of a square; or, in other words, a rule capable of being used equally as a pair of compasses or a square, as may be desired. Another object is to provide a terminal graduated movable pivotal guide attached to the rule and capable of adjustment of fractional parts thereof for laying off circles or arcs thereof.
Claim:
A rule-measure of length provided with a graduated series of perforations and with a terminal bar provided with graduated perforations adapted to serve with a stud for describing circles. |
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