US247353A - Territory - Google Patents
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- Publication number
- US247353A US247353A US247353DA US247353A US 247353 A US247353 A US 247353A US 247353D A US247353D A US 247353DA US 247353 A US247353 A US 247353A
- Authority
- US
- United States
- Prior art keywords
- square
- column
- pitch
- rafters
- span
- 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
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- 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
- Theinventiou consists of a carpenters square containing a table for determining the length of rafters for pitches and spans of roofs, and a rule finding the length of rafters for spans of one-fourth, one-third, or one-half pitch.
- Figure 1 is an elevation of one face of the square.
- Fig. 2 is an elevation of the reverse thereof to show the board and brace tables which I preferably employ in connection with my square.
- Fig. 3 is an elevation representing the application of the square to a rafter for determining the bevels for a span of onef'ourth pitch.
- Fig. 4 is an elevation representing a brace applied to a post and sill.
- One side of the square A is designed for framers tables, as shown at a on the angle thereof.
- the long arm of the square is given the formula or explanation of the said tables.
- the long arm ofthe square is marked off'in four longitudinal columns, c l f g, respectively, and these columns are intersected at right angles with inch graduationflines h, as shown,whereby a series ofrectangular sections are formed.
- One-fourth pitch at the beginning of column l indicates that the figures in said column cl give the required lengths ot' rafters for given spans when said raft-ers are to be setatone-fourth pitch.
- One-third pitch 7 at the beginning of column j' indicates that the figures in said column fgivc the required lengths of rafters to he set at one-third pitch for given spans.
- the column g is for inchgraduations.
- the short arm thereof On the same side of' the square A the short arm thereof has a graduated inchcolumn, t', a one-half pitch column, la, and a 'span-column, l, as shown, all divided into sections by the rectangularly-drawn inch-graduated lines, m.
- the method of finding the required length of rafters for the various pitches and spans is as follows. For instance, find 40 in the column of gures marked span]7 trace the column marked onc-fourth pitch 7 to the poiutimmediately below the 40 span, and there is found the required length in feet, inches, and sixteenths of an inch of a rafter for a fortyfoot span and a one-fourth pitch. 'The same method is observed for finding other required lengths and pitches of rafters.
Description
(No Model.)
J. G. K. HOWARD.
CARPENTERS SQUARE.
No. 247,353. Patented Sept. 20,1881.
ATTORNEYS.
UNITED STATES PATENT OFFICE.
JEREMIAH O. K. HOWARD, OF EDGERTON, MONTANA TERRITORY.
CARPENTERS SQUARE.
SPECIFICATION forming part of Letters Patent No. 247,353, dated September 20, 1881.
Application filed August 16, 1880.
To all lwhom @t may concern:
Be it known that I, JEREMIAH G. K. HOW- ARD, of Edgerton, in the county of Beaver Head and Territory of Montana, have invented a new and Improved Garpenters Square, of which the following is a specification.
Theinventiou consists ofa carpenters square containing a table for determining the length of rafters for pitches and spans of roofs, and a rule finding the length of rafters for spans of one-fourth, one-third, or one-half pitch.
Figure 1 is an elevation of one face of the square. Fig. 2 is an elevation of the reverse thereof to show the board and brace tables which I preferably employ in connection with my square. Fig. 3 is an elevation representing the application of the square to a rafter for determining the bevels for a span of onef'ourth pitch. Fig. 4 is an elevation representing a brace applied to a post and sill.
Similar let-ters of' reference indicate corresponding parts.
My invention will now be described in connection with a carpenters square, on which I preferably use it.
One side of the square A is designed for framers tables, as shown at a on the angle thereof. Below this, at b, on the long arm of the square, is given the formula or explanation of the said tables. Below this formula, at l), the long arm ofthe square is marked off'in four longitudinal columns, c l f g, respectively, and these columns are intersected at right angles with inch graduationflines h, as shown,whereby a series ofrectangular sections are formed. In the first of these sections the purposes, uses, or values of the figures in the columns c elfg Iare designated. Forinstance, span at the beginning of column c indicates that the figures in said column relate to thespan of the roof (No model.)
of a building. One-fourth pitch at the beginning of column l indicates that the figures in said column cl give the required lengths ot' rafters for given spans when said raft-ers are to be setatone-fourth pitch. One-third pitch 7 at the beginning of column j' indicates that the figures in said column fgivc the required lengths of rafters to he set at one-third pitch for given spans. The column g is for inchgraduations. On the same side of' the square A the short arm thereof has a graduated inchcolumn, t', a one-half pitch column, la, and a 'span-column, l, as shown, all divided into sections by the rectangularly-drawn inch-graduated lines, m.
The method of finding the required length of rafters for the various pitches and spans is as follows. For instance, find 40 in the column of gures marked span]7 trace the column marked onc-fourth pitch 7 to the poiutimmediately below the 40 span, and there is found the required length in feet, inches, and sixteenths of an inch of a rafter for a fortyfoot span and a one-fourth pitch. 'The same method is observed for finding other required lengths and pitches of rafters.
Having thus fully described my invention, I claim as new and desire to secure by Letters Patent- A carpenters square having the columns of gures c dj'g and t' 7c l divided by inch-graduations and representing the various pitches and spans of roofs arrangedin such relation to each other as to indicate the length of rafters corresponding to each combination, as shown and described.
JEREMIAH C. REEF HOWARD.
Witnesses: Y
JAs. W. PORTER, A. HELMER.
Publications (1)
Publication Number | Publication Date |
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US247353A true US247353A (en) | 1881-09-20 |
Family
ID=2316677
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US247353D Expired - Lifetime US247353A (en) | Territory |
Country Status (1)
Country | Link |
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US (1) | US247353A (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 |
US6105266A (en) * | 1998-04-16 | 2000-08-22 | Cote; David C. | Carpenter's roof pitch measuring device |
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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0
- US US247353D patent/US247353A/en not_active Expired - Lifetime
Cited By (7)
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 |
US6105266A (en) * | 1998-04-16 | 2000-08-22 | Cote; David C. | Carpenter's roof pitch measuring device |
US7958645B1 (en) | 2010-03-16 | 2011-06-14 | Chappell Universal Square & Rule Co. LLC. | Universal framing square |
WO2011115947A1 (en) | 2010-03-16 | 2011-09-22 | Chappell Universal Square & Rule Co. Llc | Universal framing square |
EP2547533A1 (en) * | 2010-03-16 | 2013-01-23 | Chappell Universal Square & Rule Co. LLC | Universal framing square |
EP2547533A4 (en) * | 2010-03-16 | 2016-08-31 | 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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