US1379124A - Drawing instrument - Google Patents
Drawing instrument Download PDFInfo
- Publication number
- US1379124A US1379124A US275831A US27583119A US1379124A US 1379124 A US1379124 A US 1379124A US 275831 A US275831 A US 275831A US 27583119 A US27583119 A US 27583119A US 1379124 A US1379124 A US 1379124A
- Authority
- US
- United States
- Prior art keywords
- square
- guide
- ruler
- arc
- graduated
- 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
Images
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
- B43L7/005—Straightedges combined with other drawing aids
-
- 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
- B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
- B43L13/001—Mathematical drawing instruments
- B43L13/002—Angle intersecting devices
-
- 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
- B43L7/007—Straightedges with holding means
-
- 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
-
- 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
- B43L7/10—Plural straightedges relatively movable
- B43L7/12—Square and pivoted straightedges
- B43L7/125—Comprising at least two straightedges remaining parallel
Definitions
- HORACE L READ, 0F QUINCY, WEST VRGINIA; ANNA L. READ ADMINISTRATRIX 0F SAID HORACE L.
- This invention has reference to drawing tools, and it refers in particular to a combination of ruling means of different shapes which are guided upon each other, and it is one of the objects of my invention to provide a device of the kind referred to in which any amount of separate ruling means can be combined in such a manner as to be easily adjusted in relation to each other without any necessity of taking them apart for adjustment while at the same time allowing them to be used separately both in the assembled position as well as when taken apart.
- the device provides a means of as-.
- Fig. 2 is a longitudinal section on the line 2 2 of Fig. 1.
- Fig. 3 is a cross section on the line 3--3 of Fig. 1.
- a combination of three ruling tools is shown, 1 representing a square, 2 a sectional arc, being a quarter circle for instance and 3 a straight bar, a ruler or the like.
- 5 is a pointer or indicator on the sectional circle indicating the position of the same with relation to the graduations 1 of the square.
- One or more guide hooks 7, 8 are provided at suitable points of the ruler 3 for the purpose of guiding it along the sectional arc 2, as well as along either of the arms of the square 1.
- the guide 8 is movable along the ruler 3 so as to be able to vary the distance of the said guide 8 from the adjacent arm'oi the square 1, and in order to prevent disengagement of the said movable guide 8 lfrom the square. 1 during its adjustment which involves rotation about the arc 2V the guide 8 is provided with a laterally or angularly extending lip' 9.
- a cam 10 pivotally mounted, as at 1l, between ears 12 upstanding from the guide 8.
- the different portions of the ruler may be provided if desired, with graduations,
- Knobs, pins or the like 6, G may be provided at the ends or at any other points of the straight ruler to assist in the adjustment oi the parts.
- stopping or abutting means may be provided on the ruler 3, such as shown for instance at 12 of the drawing. This abutment also serves as a foot to protect the clamps 7 and 9.
- the short arm of the square has been found to be of considerable utility in laying out frames and the like containing two right angles.
- the arc is slidably mounted on the base ot' the square so Vthat it can be brought to any desired distance from the heel of the square when laying out ratter cuts, braces, framing, etc.
- the arc or segment indicates the angle of the cut or the pitch of a rafter, according to the use to which the tool is placed. For example in laying off a rafter, the slidable arc or segment is slid along the lower member of the square until the pointer or index 5 registers with the graduation indicating the length of the span to be covered by the rafter.
- the bar 3 is then adjusted angularly until it registers with the graduation on the vertical portion of the square indicating the rise of the rafter.
- the cuts at the ends of the rafter will be indicated.
- the length of the rafter between cuts will be indicated by the graduatons on the member 3, as will be 'at right angles therefrom, the instrument is placed in proper position on the timber and a line drawn along the edge of the long arm of the square.
- Another line is then drawn along the short arm of the square at the proper point and then, without removing the square and inverting it, the said square can be slid along the line to the point where the othervline is to be drawn at right angles whereupon said line is drawn along the arm l. This is only one of many advantages resulting from the useV of the arm l.
- a drawing instrument the combination with a graduated square, of a graduated are slidably mounted on one or' the arms of the square, an indicator carried thereby for designating any one of the graduations upon -said arm, a graduated member movably mounted on the are and extending across one face of the square, a guide slidably mounted on said graduated member, a lip projecting rom the guide and lapping the other face of the square, a cam lever carried by the guide and frictionally engaging the graduated member to bind the vlip against the square and to hold the graduated member against movement relative to the square and to hold the guide against movement on the graduated member, means carried by the graduated member for embracing the arc to hold the graduated member and are properly assembled and adjusting knobs extendingirom the end portions of the graduated member.
Description
H. L. READ, DEC'D. A. L. READ, ADMINISTRATRIX- DRAWING INSTRUMENT.
APPLICATION FILED FEB. 8.1919.
1,379,124. Patented May24, 1921.
1, III[IIIIIII'IIIIIIIIIIIIIIIIIIII'IIIII UNITED STATES raTsNT OFFICE.
HORACE L. READ, 0F QUINCY, WEST VRGINIA; ANNA L. READ ADMINISTRATRIX 0F SAID HORACE L.
READ, DECEASED.
DRAWING ENSTRUMENT.
Specification of Letters Patent.
Application led February 8, 1919. Serial No. 275,331.
To all whom t may concern.'
Be it known that l, HORACE L. Ranma citizen of the United States, residing at Quincy, in the county of Kanawha and State of West Virginia7 have invented a new and useful Drawing Instrument, of which the following is a specication.
This invention has reference to drawing tools, and it refers in particular to a combination of ruling means of different shapes which are guided upon each other, and it is one of the objects of my invention to provide a device of the kind referred to in which any amount of separate ruling means can be combined in such a manner as to be easily adjusted in relation to each other without any necessity of taking them apart for adjustment while at the same time allowing them to be used separately both in the assembled position as well as when taken apart. The device provides a means of as-.
sembling a set of drawing tools of the character described so as to prevent their being accidentally lost when in use, and it also provides means whereby the parts may be easily locked in any adjusted position without interfering with their ready adaptability for the purpose in question.
My invention which is not limited to any particular number and shape of drawing tools of the character described, is shown by way of example on the accompanyingillustration of a draftsmans tool embodying the principles of my invention.
In the drawing Figure 1 is a plan view.
Fig. 2 is a longitudinal section on the line 2 2 of Fig. 1.
Fig. 3 is a cross section on the line 3--3 of Fig. 1.
In the structure shown in the drawing a combination of three ruling tools is shown, 1 representing a square, 2 a sectional arc, being a quarter circle for instance and 3 a straight bar, a ruler or the like. 4: are loop shaped guides secured to the sectional circle 2 by means of which it may be slid along either of the arms of the square 1. 5 is a pointer or indicator on the sectional circle indicating the position of the same with relation to the graduations 1 of the square. One or more guide hooks 7, 8 are provided at suitable points of the ruler 3 for the purpose of guiding it along the sectional arc 2, as well as along either of the arms of the square 1. In order to be able to secure the ruler at different angles with relation to the arms of the square the guide 8 is movable along the ruler 3 so as to be able to vary the distance of the said guide 8 from the adjacent arm'oi the square 1, and in order to prevent disengagement of the said movable guide 8 lfrom the square. 1 during its adjustment which involves rotation about the arc 2V the guide 8 is provided with a laterally or angularly extending lip' 9.
For the purpose oi locking the movable guide8 in any position to which it may be adjusted, there is provided on this guide a cam 10 pivotally mounted, as at 1l, between ears 12 upstanding from the guide 8. The different portions of the ruler may be provided if desired, with graduations,
1, 2', 3 respectively but it is obvious that v the provision of such graduations is not an essential part of my invention. Knobs, pins or the like 6, G may be provided at the ends or at any other points of the straight ruler to assist in the adjustment oi the parts.
In order to limit the movement of the ruler 3, and in order to better retain it in its adjusted position when laying off an angle on the arc 2 stopping or abutting means may be provided on the ruler 3, such as shown for instance at 12 of the drawing. This abutment also serves as a foot to protect the clamps 7 and 9.
The short arm of the square has been found to be of considerable utility in laying out frames and the like containing two right angles. The arc is slidably mounted on the base ot' the square so Vthat it can be brought to any desired distance from the heel of the square when laying out ratter cuts, braces, framing, etc. The arc or segment indicates the angle of the cut or the pitch of a rafter, according to the use to which the tool is placed. For example in laying off a rafter, the slidable arc or segment is slid along the lower member of the square until the pointer or index 5 registers with the graduation indicating the length of the span to be covered by the rafter. The bar 3 is then adjusted angularly until it registers with the graduation on the vertical portion of the square indicating the rise of the rafter. By marking along the bottom and vertical portion of the square the cuts at the ends of the rafter will be indicated. The length of the rafter between cuts will be indicated by the graduatons on the member 3, as will be 'at right angles therefrom, the instrument is placed in proper position on the timber and a line drawn along the edge of the long arm of the square. Another line is then drawn along the short arm of the square at the proper point and then, without removing the square and inverting it, the said square can be slid along the line to the point where the othervline is to be drawn at right angles whereupon said line is drawn along the arm l. This is only one of many advantages resulting from the useV of the arm l.
Having described my invention what I claim is: Y
In a drawing instrument the combination with a graduated square, of a graduated are slidably mounted on one or' the arms of the square, an indicator carried thereby for designating any one of the graduations upon -said arm, a graduated member movably mounted on the are and extending across one face of the square, a guide slidably mounted on said graduated member, a lip projecting rom the guide and lapping the other face of the square, a cam lever carried by the guide and frictionally engaging the graduated member to bind the vlip against the square and to hold the graduated member against movement relative to the square and to hold the guide against movement on the graduated member, means carried by the graduated member for embracing the arc to hold the graduated member and are properly assembled and adjusting knobs extendingirom the end portions of the graduated member. y
In testimony that I claim the foregoing as my own, l have hereto affixed my signature in the presence of two witnesses.
' HORACE L. READ.
l/Vitnesses:
R. B. STEWART, R. A. CHILDERS. Y
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US275831A US1379124A (en) | 1919-02-08 | 1919-02-08 | Drawing instrument |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US275831A US1379124A (en) | 1919-02-08 | 1919-02-08 | Drawing instrument |
Publications (1)
Publication Number | Publication Date |
---|---|
US1379124A true US1379124A (en) | 1921-05-24 |
Family
ID=23053973
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US275831A Expired - Lifetime US1379124A (en) | 1919-02-08 | 1919-02-08 | Drawing instrument |
Country Status (1)
Country | Link |
---|---|
US (1) | US1379124A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050108885A1 (en) * | 2003-11-20 | 2005-05-26 | Mr. Gerald Bauldock | Teaching sin and cosine instrument |
USD902309S1 (en) * | 2019-06-18 | 2020-11-17 | Fiskars Finland Oy Ab | Drawing tool |
CN112056665A (en) * | 2020-08-24 | 2020-12-11 | 太仓繁晟电子科技有限公司 | A supplementary marking device for cloth |
USD1016909S1 (en) * | 2020-11-10 | 2024-03-05 | Ryan Alexander Smit | Drawing tool |
-
1919
- 1919-02-08 US US275831A patent/US1379124A/en not_active Expired - Lifetime
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050108885A1 (en) * | 2003-11-20 | 2005-05-26 | Mr. Gerald Bauldock | Teaching sin and cosine instrument |
WO2005051678A1 (en) * | 2003-11-20 | 2005-06-09 | Gerald Bauldock | Teaching sin and cosine instrument |
US6941667B2 (en) * | 2003-11-20 | 2005-09-13 | Gerald Bauldock, Sr. | Teaching sin and cosine instrument |
USD902309S1 (en) * | 2019-06-18 | 2020-11-17 | Fiskars Finland Oy Ab | Drawing tool |
CN112056665A (en) * | 2020-08-24 | 2020-12-11 | 太仓繁晟电子科技有限公司 | A supplementary marking device for cloth |
USD1016909S1 (en) * | 2020-11-10 | 2024-03-05 | Ryan Alexander Smit | Drawing tool |
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