US1570150A - gamma square - Google Patents

gamma square Download PDF

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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
Application number
US647864A
Other languages
English (en)
Inventor
Samuel S Hinds
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US647864A priority Critical patent/US1570150A/en
Priority to GB29/24A priority patent/GB214566A/en
Priority to FR575607D priority patent/FR575607A/fr
Application granted granted Critical
Publication of US1570150A publication Critical patent/US1570150A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B43L7/02—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.

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  • Rotary Pumps (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
US647864A 1923-06-26 1923-06-26 gamma square Expired - Lifetime US1570150A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE958180C (de) * 1953-05-03 1957-02-14 Ernst Neufert Reissschiene

Cited By (8)

* Cited by examiner, † Cited by third party
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

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