US651057A - Steel square. - Google Patents
Steel square. Download PDFInfo
- Publication number
- US651057A US651057A US73741799A US1899737417A US651057A US 651057 A US651057 A US 651057A US 73741799 A US73741799 A US 73741799A US 1899737417 A US1899737417 A US 1899737417A US 651057 A US651057 A US 651057A
- Authority
- US
- United States
- Prior art keywords
- inches
- square
- rafter
- feet
- figures
- 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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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L7/00—Straightedges
- B43L7/027—Plural non-adjustable straightedges fixed at right angles
- B43L7/0275—Triangles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S33/00—Geometrical instruments
- Y10S33/16—Clips and rafters
Definitions
- My invention relates to certain im prove ⁇ ments in carpenters steel squares, the iinprovements'conternplated being,tirst,th esub stitution upon the blade of the steel square in place of certain figures or tables usually placed thereon of a conveniently-arranged rafter-table giving in duodecimals or feet, inches, and twelfths of an inch the length of rafters having a certain defined pitch or inclination and a given horizontal run, and, second, to give in connection with the raftertable the figures for the lengths, which, taken on the blade and tongue of the square, will give the bevels for the horizontal and vertical cuts for rafters having the given pitch or inclination.
- a rafter table B B Upon the blade A A of a carpenter-s steel square, made in the usual forni, and the place usually occupied by a lumber-table I place a rafter table B B.
- This table consists of a number of parallel rulings having at the left end figures C, indicating a certain pitch of inclination, while along between the rulings and opposite the usual figures denoting the inches on the outside of the square are given the lengths in duodecimals or feet, inches, and t'welfths of an inch of rafters having the run in either feet or inches indicated by said figures and of the given pitch or inclination.
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- Joining Of Building Structures In Genera (AREA)
- Materials For Medical Uses (AREA)
Description
Patented lun 5, |900.
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miv
STEEL SQUARE. (Application med No. 1a, 1599,)
cum
(No Modeh) mi Nonms Pneus co.. PNo-ro-LITMQ. WASHINGTON. D. c.
M2292 25565 j 7% 7%7-44 m. MUJQW UNITED STATES PATENT OFFICE.
ARTEMAS ROBERTS, OF NORMAL, NEBRASKA.
STEEL SQUARE.
SPECIFICATION forming part Of Letters Patent No. 651,057, dated June 5, 1900.
Application led November 18, 1899. Serial No. 737,417. (No model.)
To all whom t may concern:
Be it known that I, ARTEMAs ROBERTS, a
citizen of the United States, residing at Normal, in the county of Lancaster and State of Nebraska, have invented new and useful Iinprovements in Steel Squares, of which the following is a specification.
My invention relates to certain im prove` ments in carpenters steel squares, the iinprovements'conternplated being,tirst,th esub stitution upon the blade of the steel square in place of certain figures or tables usually placed thereon of a conveniently-arranged rafter-table giving in duodecimals or feet, inches, and twelfths of an inch the length of rafters having a certain defined pitch or inclination and a given horizontal run, and, second, to give in connection with the raftertable the figures for the lengths, which, taken on the blade and tongue of the square, will give the bevels for the horizontal and vertical cuts for rafters having the given pitch or inclination. I `accomplish these objects in the manner illustrated in the accompanying drawing, which is a view of a portion of the blade of a carpenters steel square, showing the arrangement of my improved rafter-table with the figures giving the horizontal and vertical cuts for each pitch, as is more fully described below.
Upon the blade A A of a carpenter-s steel square, made in the usual forni, and the place usually occupied by a lumber-table I place a rafter table B B. This table consists of a number of parallel rulings having at the left end figures C, indicating a certain pitch of inclination, while along between the rulings and opposite the usual figures denoting the inches on the outside of the square are given the lengths in duodecimals or feet, inches, and t'welfths of an inch of rafters having the run in either feet or inches indicated by said figures and of the given pitch or inclination. In case the run of the rafters is taken in feet we call one inch on the square a f0ot, and the readings of the table will give the lengths correctly. In case the run is taken in inches the readings of the table will be in inches, twelfths, and one hundred and forty-fourths of an inch, and the latter may be neglected in most cases. lf the given run consists of feet and inches, the length of the rafter may be taken for the given number of feet and for the given number of inches, and the two added together will given the entire length.
To illustrate: Suppose the run of a rafter to be twenty-one feet and five inches (21 5") and the roof to have one-fourth (i) pitch. In the column indicating pitches we find Onefourth, and following the ruling We find under the figures 2l on the outside of the square the length Of a rafter havinga run of twenty-one feet, (2l,) Which is twenty-three feet five inches and nine-twelfths of an inch, and under the figure 5 We find the length five inches and seven-twelfths of an inch of a rafter of five inches run, and adding these we get the Whole length of the rafter, which is twenty-nine feet no inches and ten-tvvelfths of an inch, (29 0" 10.) In formulating this table I have adhered to the method in common use among carpenters of calling the proportion between the vertical height of the roof and the Width of the building or double the run of the rafter the pitch of the rafter. At the right of this table and opposite each of the ruled lines I place the figures, which, taken upon the blade and tongue of the square, give the bevels for the horizontal and vertical cuts of rafters having the designated pitch or inclination.
Having thus fully described my invention, what I claim is l., A carpenters steel square made in the usual form and having upon one side of the blade a table giving the lengths in duodecimals, or feet, inches and twelfths of an inch, of rafters having a certain defined pitch or inclination and a given horizontal run, the latter being indicated by the usual figures which indicate inches on the square substantially as described.
2. In combination With a carpenters steel square of the usual form a rafter-table, made as shown and described, in which the runs of rafters are indicated by the usual figures denoting inches on the square, While the rafter lengthsare given in feet, inches and twelfths, and having in connection therewith figures which taken upon the blade and tongue of the square will give the bevels for the horizontal and vertical cuts, substantially as set forth.
' AR'FEMAS ROBERTS.
Witnesses:
A. W. WOODS, MARY L. KINSLEY.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US73741799A US651057A (en) | 1899-11-18 | 1899-11-18 | Steel square. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US73741799A US651057A (en) | 1899-11-18 | 1899-11-18 | Steel square. |
Publications (1)
Publication Number | Publication Date |
---|---|
US651057A true US651057A (en) | 1900-06-05 |
Family
ID=2719627
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US73741799A Expired - Lifetime US651057A (en) | 1899-11-18 | 1899-11-18 | Steel square. |
Country Status (1)
Country | Link |
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US (1) | US651057A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4200990A (en) * | 1978-10-19 | 1980-05-06 | The Stanley Works | Metric rafter square and method of using same |
US20070260677A1 (en) * | 2006-03-17 | 2007-11-08 | Viddler, Inc. | Methods and systems for displaying videos with overlays and tags |
US7958645B1 (en) | 2010-03-16 | 2011-06-14 | Chappell Universal Square & Rule Co. LLC. | Universal framing square |
US10538125B1 (en) | 2016-10-31 | 2020-01-21 | Jaye B. Smith | Tools for laying out framing members |
-
1899
- 1899-11-18 US US73741799A patent/US651057A/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4200990A (en) * | 1978-10-19 | 1980-05-06 | The Stanley Works | Metric rafter square and method of using same |
US20070260677A1 (en) * | 2006-03-17 | 2007-11-08 | Viddler, Inc. | Methods and systems for displaying videos with overlays and tags |
US7958645B1 (en) | 2010-03-16 | 2011-06-14 | Chappell Universal Square & Rule Co. LLC. | Universal framing square |
US10538125B1 (en) | 2016-10-31 | 2020-01-21 | Jaye B. Smith | Tools for laying out framing members |
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