Squares - Revision history

DT Online at 08:40, 12 April 2018

2018-04-12T08:40:17Z

← Older revision		Revision as of 08:40, 12 April 2018
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	\| '''Box Square'''		\| '''Box Square'''
	\| Also known as a '''Key Seat Rule''' because of its use in marking out '''[[Keys, Keyways and Splines\|Keyways]]''' on round shafts, for general use this can be simply a length of bright steel angle section of a suitable size. A cylinder is laid inside the angle such that lines can be drawn along its length and parallel to its axis. If required, they can be used also to mark lines parallel to the axis on the inside of cylinders.		\| Also known as a '''Key Seat Rule''' because of its use in marking out '''[[Keys, Keyways and Splines\|Keyways]]''' on round shafts, for general use this can be simply a length of bright steel angle section of a suitable size. A cylinder is laid inside the angle such that lines can be drawn along its length and parallel to its axis. If required, they can be used also to mark lines parallel to the axis on the inside of cylinders.
	\| [[File:BoxSquare.png\|200px\|right]]		\| [[File:BoxSquare.png\|200px\|right\|link=http://otools1.wkfinetools.com/mechanicT/y_ShopTalks-yMech/1897-12-layoutT-Vanderv/1897-12-layoutT-Vanderv-02.asp]]
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	\| '''Mitre Square'''		\| '''Mitre Square'''

DT Online at 08:56, 28 August 2017

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	\|-		\|-
	\| '''Box Square'''		\| '''Box Square'''
	\| ~~Simply~~ a length of bright steel angle section of a suitable size. A cylinder is laid inside the angle such that lines can be drawn along its length and parallel to its axis.		\| Also known as a '''Key Seat Rule''' because of its use in marking out '''[[Keys, Keyways and Splines\|Keyways]]''' on round shafts, for general use this can be simply a length of bright steel angle section of a suitable size. A cylinder is laid inside the angle such that lines can be drawn along its length and parallel to its axis. If required, they can be used also to mark lines parallel to the axis on the inside of cylinders.
	\| [[File:BoxSquare.png\|200px\|right]]		\| [[File:BoxSquare.png\|200px\|right]]
	\|-		\|-

DT Online: Added Template

2016-09-09T11:54:38Z

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			[[File:Measurement-148681 960 720.png\|400px\|right]]
			__TOC__


			=====Description=====

	'''Squares''' of various types are used mainly to test the '''[[Squareness]]''' of a piece of material or a construction and also to mark lines, usually at right-angles, from an edge or surface		'''Squares''' of various types are used mainly to test the '''[[Squareness]]''' of a piece of material or a construction and also to mark lines, usually at right-angles, from an edge or surface


			=====Features and Applications=====

	{\|		{\|
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	\| [[File:SetSquares.png\|200px\|right]]		\| [[File:SetSquares.png\|200px\|right]]
	\|}		\|}

			{{Squares Buyers Guide}}


	[[Category:Secondary]]		[[Category:Secondary]]
	[[Category:Marking and Measuring Tools]]		[[Category:Marking and Measuring Tools]]

DT Online: Added Image

2015-08-21T15:25:26Z

Added Image

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	\|-		\|-
	\| '''Box Square'''		\| '''Box Square'''
	\| Simply a length of bright ~~draw~~ steel angle section of a suitable size. A cylinder is laid inside the angle such that lines can be drawn along its length and parallel to its axis.		\| Simply a length of bright steel angle section of a suitable size. A cylinder is laid inside the angle such that lines can be drawn along its length and parallel to its axis.
	\| [[File:~~###~~.png\|200px\|right]]		\| [[File:BoxSquare.png\|200px\|right]]
	\|-		\|-
	\| '''Mitre Square'''		\| '''Mitre Square'''

DT Online at 13:36, 21 August 2015

2015-08-21T13:36:44Z

← Older revision		Revision as of 13:36, 21 August 2015
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	\| When pressed against the '''[[Circles\|Circumference]]''' of a circular disc or bar, the stock forms two '''[[Circles\|Tangents]]'''. The blade is the '''[[Circles\|Bisector]]''' of them and always passes through the circle centre. Marking two or more lines therefore will define the circle centre where they intersect. '''Centre Squares''' are a feature of a '''Combination Square''' and also available as separate tools.		\| When pressed against the '''[[Circles\|Circumference]]''' of a circular disc or bar, the stock forms two '''[[Circles\|Tangents]]'''. The blade is the '''[[Circles\|Bisector]]''' of them and always passes through the circle centre. Marking two or more lines therefore will define the circle centre where they intersect. '''Centre Squares''' are a feature of a '''Combination Square''' and also available as separate tools.
	\| [[File:CentreSquares.png\|200px\|right]]		\| [[File:CentreSquares.png\|200px\|right]]
			\|-
			\| '''Box Square'''
			\| Simply a length of bright draw steel angle section of a suitable size. A cylinder is laid inside the angle such that lines can be drawn along its length and parallel to its axis.
			\| [[File:###.png\|200px\|right]]
	\|-		\|-
	\| '''Mitre Square'''		\| '''Mitre Square'''

DT Online: Added category links

2015-07-24T06:51:16Z

Added category links

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	'''Squares''' of various types are used mainly to test the '''[[Squareness]]''' of a piece of material or a construction and also to mark lines, usually at right-angles, from an edge or surface		'''Squares''' of various types are used mainly to test the '''[[Squareness]]''' of a piece of material or a construction and also to mark lines, usually at right-angles, from an edge or surface

	{\|		{\|
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	\| [[File:BuildersSquares.png\|200px\|right]]		\| [[File:BuildersSquares.png\|200px\|right]]
	\|-		\|-
	\| ~~[https://en.wikipedia.org/wiki/T-square~~ '''T-square''']		\| '''[[Drawing Instruments\|T-square]]'''
	\| A drawing instrument comprising usually a plastics blade and stock made also of plastics or wood which is pressed against the edge of a drawing board to enable parallel lines to be drawn across.		\| A drawing instrument comprising usually a plastics blade and stock made also of plastics or wood which is pressed against the edge of a drawing board to enable parallel lines to be drawn across.
	\| [[File:T-square.png\|200px\|right]]		\| [[File:T-square.png\|200px\|right]]
	\|-		\|-
	\| ~~[https://en.wikipedia.org/wiki/Set_square~~ '''Set Squares''']		\| '''[[Drawing Instruments\|Set Squares]]'''
	\| Triangular shaped ~~drawing instruments~~ usually used in conjunction with a '''T-square''' or rule to draw lines at 45, 60, 30 and 90 degrees to it.		\| Triangular shaped '''[[Drawing Instruments]]''' usually used in conjunction with a '''[[Drawing Instruments\|T-square]]''' or rule to draw lines at 45, 60, 30 and 90 degrees to it.
	\| [[File:SetSquares.png\|200px\|right]]		\| [[File:SetSquares.png\|200px\|right]]
	\|}		\|}

DT Online at 07:43, 22 July 2015

2015-07-22T07:43:02Z

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	\| '''Double Square'''		\| '''Double Square'''
	\| This adjustable square can be used not only as a Try Square, especially wheh needing to square lines in a [https://en.wikipedia.org/wiki/Rabbet '''Rebate'''] for example, but also as a Depth Gauge and as a gauge when marking lines parallel to an edge.		\| This adjustable square can be used not only as a Try Square, especially wheh needing to square lines in a [https://en.wikipedia.org/wiki/Rabbet '''Rebate'''] for example, but also as a Depth Gauge and as a gauge when marking lines parallel to an edge.
	\| [[File:DoubleSquare.PNG\|~~200px~~\|right]]		\| [[File:DoubleSquare.PNG\|150px\|right]]
	\|-		\|-
	\| [https://en.wikipedia.org/wiki/Combination_square '''Combination Square''']		\| [https://en.wikipedia.org/wiki/Combination_square '''Combination Square''']

DT Online at 07:42, 22 July 2015

2015-07-22T07:42:14Z

← Older revision		Revision as of 07:42, 22 July 2015
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	\| '''[[Try Square\|Engineer's Try Square]]'''		\| '''[[Try Square\|Engineer's Try Square]]'''
	\| For general metalworking, an all steel version is used. They resist wear well and are precision made to ensure accuracy. The notch on the inside of the stock is there to ensure the stock butts right up to the edge of the material without interference by small particles or [https://en.wikipedia.org/wiki/Burr_%28edge%29 '''burrs'''] .		\| For general metalworking, an all steel version is used. They resist wear well and are precision made to ensure accuracy. The notch on the inside of the stock is there to ensure the stock butts right up to the edge of the material without interference by small particles or [https://en.wikipedia.org/wiki/Burr_%28edge%29 '''burrs'''] .
	\| [[File:EngineersTrySquare2.png\|~~200px~~\|right]]		\| [[File:EngineersTrySquare2.png\|150px\|right]]
	\|-		\|-
	\| '''Double Square'''		\| '''Double Square'''

DT Online at 22:09, 19 July 2015

2015-07-19T22:09:24Z

← Older revision		Revision as of 22:09, 19 July 2015
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	\|-		\|-
	\| [https://en.wikipedia.org/wiki/T-square '''T-square''']		\| [https://en.wikipedia.org/wiki/T-square '''T-square''']
	\| A drawing instrument comprising usually a plastics blade and stock made of also of plastics or wood which is pressed against the edge of a drawing board to enable parallel lines to be drawn across.		\| A drawing instrument comprising usually a plastics blade and stock made also of plastics or wood which is pressed against the edge of a drawing board to enable parallel lines to be drawn across.
	\| [[File:T-square.png\|200px\|right]]		\| [[File:T-square.png\|200px\|right]]
	\|-		\|-

DT Online: Added text

2015-07-19T19:43:22Z

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	\| '''[[Try Square\|Carpenter's Try Square]]'''		\| '''[[Try Square\|Carpenter's Try Square]]'''
	\| Used for general woodworking when needing to test for '''[[Squareness]]''' or to mark lines at ~~rigt~~-angles to a surface or edge - usually with a [https://en.wikipedia.org/wiki/Marking_knife '''Marking Knife'''] or [https://en.wikipedia.org/wiki/Pencil '''Pencil'''].		\| Used for general woodworking when needing to test for '''[[Squareness]]''' or to mark lines at right-angles to a surface or edge - usually with a [https://en.wikipedia.org/wiki/Marking_knife '''Marking Knife'''] or [https://en.wikipedia.org/wiki/Pencil '''Pencil'''].
	\| [[File:TrySquare.png\|200px\|right]]		\| [[File:TrySquare.png\|200px\|right]]
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	\| '''Double Square'''		\| '''Double Square'''
	\| This adjustable square can		\| This adjustable square can be used not only as a Try Square, especially wheh needing to square lines in a [https://en.wikipedia.org/wiki/Rabbet '''Rebate'''] for example, but also as a Depth Gauge and as a gauge when marking lines parallel to an edge.
	\| [[File:DoubleSquare.PNG\|200px\|right]]		\| [[File:DoubleSquare.PNG\|200px\|right]]
	\|-		\|-
	\| [https://en.wikipedia.org/wiki/Combination_square '''Combination Square''']		\| [https://en.wikipedia.org/wiki/Combination_square '''Combination Square''']
	\| ~~###~~		\| These have an adjustable '''Double Square''' stock with one face at 90 degrees and another at 45 degrees for drawing mitres. They comprise also a '''Protractor''' to mark lines at any angle and '''Centre Square''' to find the centre of a bar or disc.
	\| [[File:CombinationSquare.png\|200px\|right]]		\| [[File:CombinationSquare.png\|200px\|right]]
	\|-		\|-
	\| '''Centre Square ''(or Centre Finder)'''''		\| '''Centre Square ''(or Centre Finder)'''''
	\| ~~###~~		\| When pressed against the '''[[Circles\|Circumference]]''' of a circular disc or bar, the stock forms two '''[[Circles\|Tangents]]'''. The blade is the '''[[Circles\|Bisector]]''' of them and always passes through the circle centre. Marking two or more lines therefore will define the circle centre where they intersect. '''Centre Squares''' are a feature of a '''Combination Square''' and also available as separate tools.
	\| [[File:CentreSquares.png\|200px\|right]]		\| [[File:CentreSquares.png\|200px\|right]]
	\|-		\|-
	\| '''Mitre Square'''		\| '''Mitre Square'''
	\| ~~###~~		\| These are constructed in much the same way as a '''Try Square''' but the blade is set at 45 degrees to the stock.
	\| [[File:MitreSquare.png\|200px\|right]]		\| [[File:MitreSquare.png\|200px\|right]]
	\|-		\|-
	\| '''Bevel Square ''(aka Bevel Gauge or Sliding Bevel)'''''		\| '''Bevel Square ''(aka Bevel Gauge or Sliding Bevel)'''''
	\| ~~###~~		\| These adjust to enable lines to be marked at any angle and bevels or [https://en.wikipedia.org/wiki/Chamfer '''chamfers'''] to be checked.
	\| [[File:BevelGauges.png\|200px\|right]]		\| [[File:BevelGauges.png\|200px\|right]]
	\|-		\|-
	\| [https://en.wikipedia.org/wiki/Steel_square '''Framing Square''']		\| [https://en.wikipedia.org/wiki/Steel_square '''Framing Square''']
	\| ~~###~~		\| A large '''‘L’-shaped''' tool used to check the '''[[Squareness]]''' of frame constructions for example.
			----
			<span style="color: green">'''Note:'''
			Large rectangular frames can also be checked for '''Squareness''' by testing that its '''Diagonals''' are equal in length.
			</span>
			----
	\| [[File:FrameSquare.png \|200px\|right]]		\| [[File:FrameSquare.png \|200px\|right]]
	\|-		\|-
	\| '''Builder's Square'''		\| '''Builder's Square'''
	\| ~~###~~		\| These large folding squares ''(e.g. typically 1200mm)'' are based on a special case triangle of sides in the proportion 3,4, and 5 which by the '''[[Basic Constructions\|Pythagoras Theorem]]''' will always create a right-angled triangle.
	\| [[File:BuildersSquares.png\|200px\|right]]		\| [[File:BuildersSquares.png\|200px\|right]]
			\|-
			\| [https://en.wikipedia.org/wiki/T-square '''T-square''']
			\| A drawing instrument comprising usually a plastics blade and stock made of also of plastics or wood which is pressed against the edge of a drawing board to enable parallel lines to be drawn across.
			\| [[File:T-square.png\|200px\|right]]
	\|-		\|-
	\| [https://en.wikipedia.org/wiki/Set_square '''Set Squares''']		\| [https://en.wikipedia.org/wiki/Set_square '''Set Squares''']
	\| ~~###~~		\| Triangular shaped drawing instruments usually used in conjunction with a '''T-square''' or rule to draw lines at 45, 60, 30 and 90 degrees to it.
	\| [[File:SetSquares.png\|200px\|right]]		\| [[File:SetSquares.png\|200px\|right]]
	\|-
	~~\| [https://en.wikipedia.org/wiki/T-square '''T-square''']~~
	~~\| ###~~
	~~\| [[File:T-square.png\|200px\|right]]~~
	\|}		\|}