US1570150A - gamma square - Google Patents
gamma square Download PDFInfo
- Publication number
- US1570150A US1570150A US647864A US64786423A US1570150A US 1570150 A US1570150 A US 1570150A US 647864 A US647864 A US 647864A US 64786423 A US64786423 A US 64786423A US 1570150 A US1570150 A US 1570150A
- Authority
- US
- United States
- Prior art keywords
- ruler
- square
- graduated
- heads
- circles
- 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
- B43L7/02—T-squares and other similar squares
Definitions
- This invention relates to T-squares for architectural and patent draftsmen and more particularly to a novel and improved graduated combined ruler and T-square adapted for a multiplicity of uses in drafting work.
- the primary object of my invention is to provide a graduated T-square wherein the graduated head may be adjusted to various positions on the graduated ruler so as to accommodate drafting boards of different dimensions including provision whereby circles or curved lines may be drawn.
- Another object of my invention is to provide a T-square and wherein the same is provided with a graduated head at each end of the ruler, said head being capable of adjustment to various positions so as to acconnnodate various sized drafting boards, the ruler being graduated from left to right and right to left so that measurements may be taken therefrom und lined up with the graduated head at either end of the ruler.
- ⁇ Figure l is a perspective view showing the application of the T-square.
- Figure 2 is a similar view showing the T-square when utilized as a compass when drawing circles, or parts of circles.
- Figure 3 is a top plan of the T-square.
- Either or both of the heads l0, 11, may be adjusted or positioned at different points along the graduated ruler so as to accommodate the various sizes of drafting boards and thus avoiding the use of different sized T-squares for different sized boards as are now common.
- the ruler When both of the heads 10, il, are secured on the ruler Vand to accommodate the exact size of board, the ruler may be easily slid up and down and measurements may be easily and quickly made, giving free use of the hands. Of course, if so desired, the ruler may be reversed, for drawing circles in the manner above described.
- the heads 10, l1 are each provided with a groove of a width to receive the ruler so that the top face of the same will lie iush with the heads. Furthermore when the fastening element is screwed tightly in position, the ruler and heads are prevented from becoming loose due to their constant use.
- a drawing instrument of the class described comprising a ruler graduated in opposite directions along its opposed edges respectively and having a series of apertures therethrough at different points throughout its length, and a cross head at each end of said ruler one ot said cross heads being adapted to be positioned at any of said points to accommodate different size drawing boards.
Landscapes
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Rotary Pumps (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US647864A US1570150A (en) | 1923-06-26 | 1923-06-26 | gamma square |
GB29/24A GB214566A (en) | 1923-06-26 | 1924-01-01 | Improvements in or relating to t-squares |
FR575607D FR575607A (fr) | 1923-06-26 | 1924-01-09 | équerre en double tau pour dessinateurs |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US647864A US1570150A (en) | 1923-06-26 | 1923-06-26 | gamma square |
Publications (1)
Publication Number | Publication Date |
---|---|
US1570150A true US1570150A (en) | 1926-01-19 |
Family
ID=9697097
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US647864A Expired - Lifetime US1570150A (en) | 1923-06-26 | 1923-06-26 | gamma square |
Country Status (3)
Country | Link |
---|---|
US (1) | US1570150A (fr) |
FR (1) | FR575607A (fr) |
GB (1) | GB214566A (fr) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2549634A (en) * | 1949-01-17 | 1951-04-17 | Lloyd V Parsons | Layout and measuring device |
US3243883A (en) * | 1963-01-18 | 1966-04-05 | James L Morgan | Plotting aid |
US20050028394A1 (en) * | 2001-02-09 | 2005-02-10 | Acu-Rite, Inc. | Mounting tool for linear encoders |
US20070063114A1 (en) * | 2005-09-22 | 2007-03-22 | Michael Brumbaugh | Device and method for mounting a position measuring device onto a machine tool, and position measuring system |
WO2019209984A1 (fr) * | 2018-04-27 | 2019-10-31 | Milwaukee Electric Tool Corporation | Équerre d'encadrement |
US11110739B2 (en) | 2018-04-27 | 2021-09-07 | Milwaukee Electric Tool Corporation | Framing square |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE958180C (de) * | 1953-05-03 | 1957-02-14 | Ernst Neufert | Reissschiene |
-
1923
- 1923-06-26 US US647864A patent/US1570150A/en not_active Expired - Lifetime
-
1924
- 1924-01-01 GB GB29/24A patent/GB214566A/en not_active Expired
- 1924-01-09 FR FR575607D patent/FR575607A/fr not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2549634A (en) * | 1949-01-17 | 1951-04-17 | Lloyd V Parsons | Layout and measuring device |
US3243883A (en) * | 1963-01-18 | 1966-04-05 | James L Morgan | Plotting aid |
US20050028394A1 (en) * | 2001-02-09 | 2005-02-10 | Acu-Rite, Inc. | Mounting tool for linear encoders |
US7406776B2 (en) * | 2001-02-09 | 2008-08-05 | Acu-Rite Companies Inc. | Mounting tool for linear encoders |
US20070063114A1 (en) * | 2005-09-22 | 2007-03-22 | Michael Brumbaugh | Device and method for mounting a position measuring device onto a machine tool, and position measuring system |
WO2019209984A1 (fr) * | 2018-04-27 | 2019-10-31 | Milwaukee Electric Tool Corporation | Équerre d'encadrement |
CN112262047A (zh) * | 2018-04-27 | 2021-01-22 | 米沃奇电动工具公司 | 框架角尺 |
US11110739B2 (en) | 2018-04-27 | 2021-09-07 | Milwaukee Electric Tool Corporation | Framing square |
Also Published As
Publication number | Publication date |
---|---|
GB214566A (en) | 1924-04-24 |
FR575607A (fr) | 1924-08-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2591333A (en) | Vernier scale measuring device | |
US1570150A (en) | gamma square | |
US3089245A (en) | Combination tool | |
US2658278A (en) | Multiple precision instrument and tool | |
US2080620A (en) | Drafting instrument | |
US1498485A (en) | Drawing implement | |
US1882354A (en) | Combination square and ruler | |
US2470035A (en) | Square | |
US778521A (en) | Device for marking picture-mats. | |
US2259619A (en) | Miter square | |
US1633703A (en) | Sign-making device | |
US1445546A (en) | Tool | |
US828375A (en) | Square. | |
US1142368A (en) | Drafting instrument. | |
US1579137A (en) | Drafting triangle | |
US2379791A (en) | Drafting instrument | |
US3343265A (en) | Drafting instrument | |
US2104354A (en) | Draftsman's instrument | |
US1755024A (en) | Drafting instrument | |
US1461335A (en) | Drawing implement | |
US2713724A (en) | Drafting instrument | |
US2513404A (en) | Crosshatching device | |
DE739851C (de) | Lineal, Reissschiene o. dgl., bestehend aus mehreren Teilen | |
US2225903A (en) | Drafting board | |
US1467534A (en) | Ruler for loose-leaf books |