US182551A - Improvement in bevels - Google Patents
Improvement in bevels Download PDFInfo
- Publication number
- US182551A US182551A US182551DA US182551A US 182551 A US182551 A US 182551A US 182551D A US182551D A US 182551DA US 182551 A US182551 A US 182551A
- Authority
- US
- United States
- Prior art keywords
- bevels
- improvement
- rafters
- bar
- instrument
- 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
Links
- 239000011295 pitch Substances 0.000 description 6
- 230000000875 corresponding Effects 0.000 description 4
- 235000005288 Annona lutescens Nutrition 0.000 description 2
- 241000886928 Annona reticulata Species 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H7/00—Marking-out or setting-out work
- B25H7/04—Devices, e.g. scribers, for marking
-
- 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
- the object of this invention is to furnish an improved instrument for getting the length of rafters and the bevels of their ends, when the Width of the building and the desired pitch of said rafters are known, and which may also be used for getting the length and the bevels of the ends of braces, and for other similar uses.
- A represents a bar, upon the edge of which is formed a scale of division-marks, numbered to represent the length of the rafter or brace,
- the bar A is slotted longitudinally to receive the clamping-screws B, which are screwed into straight bars C placed upon the lower side 'of said barA, as shown in Figs. l and 2.
- the bar A is laid diagonally across the arms of an ordinary square, and is adjusted upon the long arm of' the square at a point representing the half width ofthe building, and upon the short arm at a point representing the desired pitch of the rafters.
- the bars G are then adjusted against the edges of the arms ofthe square, and are clamped in place by the screws B.
- the instrument is now set to give the length of the rafters and the bevels of their ends.
- the instrument may be used without a square, by having lines drawn upon the under side of the bar A, to represent the different positions of the bars C, for different lengths and pitches of rafters.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Description
G. ILBRADSHAW.
BEvELs. l Y No. 182,551. Patented. Sept. 26,1876-,
- www "'"fmzf mamans.
UNITED STATES PATENT OEEIOE.
GEORGE H. BRADSHAW, OF FAYETTEVILLE, TENNESSEE.
IMPROVEMENT |N BEvELs.'
Specification forming part of Letters Patent No. 182,551, dated September 26, 1876; application filed July 31, 1876.
To all whom it may concern:
Be it known that I, GEORGE HAMILTON BRADSHAW, of Fayetteville, in the county of Lincoln and State of Tennessee, have invented a new and useful Improvement in Instrumeut for Getting the Bevels and Length of Batters, Braces, 6to., of which the following is a specication Figure l is a plan View of my improved instrument, illustrating itsV use. Fig. 2 is a side view of the same.
Similar letters of reference indicate corresponding parts.
The object of this invention is to furnish an improved instrument for getting the length of rafters and the bevels of their ends, when the Width of the building and the desired pitch of said rafters are known, and which may also be used for getting the length and the bevels of the ends of braces, and for other similar uses.
The invention will first be described in connection with drawing, and then pointed out in the claim.
A represents a bar, upon the edge of which is formed a scale of division-marks, numbered to represent the length of the rafter or brace,
and which should be made upon a scale of anl inch to the foot to make it correspond with the division-marks of an ordinary square. The bar A is slotted longitudinally to receive the clamping-screws B, which are screwed into straight bars C placed upon the lower side 'of said barA, as shown in Figs. l and 2. In using the instrument the bar A is laid diagonally across the arms of an ordinary square, and is adjusted upon the long arm of' the square at a point representing the half width ofthe building, and upon the short arm at a point representing the desired pitch of the rafters. The bars G are then adjusted against the edges of the arms ofthe square, and are clamped in place by the screws B. The instrument is now set to give the length of the rafters and the bevels of their ends. The instrument may be used without a square, by having lines drawn upon the under side of the bar A, to represent the different positions of the bars C, for different lengths and pitches of rafters.
Having thus described my invention, I claim as new and desire to secure by Letters Patent- A carpenters instrument for getting the -bevel and measurement of braces and rafters,
consisting of an angled scale-bar, longitudinally slotted-bar A, screws B B, and the corresponding bars O O, as shown and described.
GEORGE HAMILTON BRADSHAW. Witnesses:
G. S. WILSON, Trios. 1. CARTER.
Publications (1)
Publication Number | Publication Date |
---|---|
US182551A true US182551A (en) | 1876-09-26 |
Family
ID=2251957
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US182551D Expired - Lifetime US182551A (en) | Improvement in bevels |
Country Status (1)
Country | Link |
---|---|
US (1) | US182551A (en) |
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0
- US US182551D patent/US182551A/en not_active Expired - Lifetime
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