GB2131345A - Cutter or scribe jig - Google Patents

Cutter or scribe jig Download PDF

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Publication number
GB2131345A
GB2131345A GB08329891A GB8329891A GB2131345A GB 2131345 A GB2131345 A GB 2131345A GB 08329891 A GB08329891 A GB 08329891A GB 8329891 A GB8329891 A GB 8329891A GB 2131345 A GB2131345 A GB 2131345A
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GB
United Kingdom
Prior art keywords
jig
cutter
slot
straight edge
cut
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.)
Granted
Application number
GB08329891A
Other versions
GB8329891D0 (en
GB2131345B (en
Inventor
John Stanley Holden
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.)
CURRANS CHARLES
Original Assignee
CURRANS CHARLES
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 CURRANS CHARLES filed Critical CURRANS CHARLES
Priority to GB08329891A priority Critical patent/GB2131345B/en
Publication of GB8329891D0 publication Critical patent/GB8329891D0/en
Publication of GB2131345A publication Critical patent/GB2131345A/en
Application granted granted Critical
Publication of GB2131345B publication Critical patent/GB2131345B/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/22—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising
    • B28D1/225—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising for scoring or breaking, e.g. tiles
    • 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
    • B43L7/0275—Triangles
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B33/00—Severing cooled glass
    • C03B33/10—Glass-cutting tools, e.g. scoring tools
    • C03B33/12—Hand tools

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

A cutter or scribe jig (1) for use with tiles or sheet glass comprises a generally flat plate 2 to which is attached means (4) defining a straight edge (5) and which has therein a slot (6) of tapered cross-section, the slot (6) being at a predetermined orientation with respect to the straight edge (5) and being arranged to receive and guide the working end of a cutter or scribe during a respective cutting or scribing operation. The plate (2) is preferably generally triangular and can have a pair of spaced supports (3,4) on one face thereof, with one (4) of the supports constituting said means defining the straight edge (5). <IMAGE>

Description

SPECIFICATION Cutter or scribe jig This invention relates to a jig for a cutter or scribe which can be used for cutting or scribing planar articles, such as tiles or sheet glass.
In accordance with the invention, there is provided a cutter or scribe jig comprising a generally flat plate to which is attached means defining a straight edge and which has therein a slot of tapered crosssection, the slot being at a predetermined orientation with respect to the straight edge and being arranged to receive and guide the working end of a cutter or scribe during a respective cutting or scribing operation.
Preferably, the flat plate is generally triangular in shape and is fixed to a pair of spaced supports on one face thereof, one of the supports constituting said means defining the straight edge which, In use of the guide, abuts a corresponding straight edge or other straight surface of an article, such as a ceramic tile, to be cut or scribed prior to cutting.
The slot in the flat plate will usually be straight also, as well as being either parallel or at a predetermined angle to the straight edge. However, an arcuate slot may be used.
The tapered cross-section of the slot is preferably V-shaped, although any suitable cross-section may be employed, as long as it is capable of receiving and guiding the working end of a cutter or scribe.
Advantageously, and in use of the jig, the cutting or scribing blade or wheel of the cutter or scribe protrudes through the slot, with the end of its associated holder or end region adjacent its cutting or scribing edge resting upon the tapered surfaces of the slot.
Also, the flat plate may be provided with an aperture through which the article to be cut or scribed can be held steady during the cutting or scribing operation.
Further, at least one edge of the flat plate can have one or more arcuate cut-outs therein, which is or are preferably of semi-circular shape. Such a cut-out enables an arcuate portion of, say, a ceramic tile to be cut or scribed.
Two preferred embodiments of ceramic tile cutter jig, in accordance with the invention, will now be described by way of example and with reference to the accompanying drawings in which: Figure 1 is a plan view of a first embodiment of tile cutter jig; Figure 2 is a section along the line ll-ll in Figure 1; Figure 3 is a plan view of a second embodiment of tile cutter jig; and Figure 4 is a side elevational view of the jig shown in Figure 3, in the direction of the arrow A.
Referring firstly to Figures 1 and 2 of the drawings,a tile cutter jig 1 comprises a generally triangular, flat, mild steel plate 2 at one end of which is secured a first flat support 3 and at the other end of which is secured a second flat support 4. The two supports 3,4 are on the underside of the flat plate 2 and the second support 4 provides a straight edge 5 which, in use of the jig 1, abuts a corresponding straight edge of a tile to be cut. Due to the thickness of the supports 3,4 the plate 2 is spaced from the upper surface of the tile.
A straight V-shaped slot 6 extends between the two supports 3,4 in the plate 2 and is such as to receive and guide the working end of a tile cutter (not shown). The lower end region adjacent the cutting edge of the blade or wheel of the cutter rests between and upon the V-shaped surfaces of the slot 6, whilst its cutting blade or wheel protrudes through the slot to engage the upper surface of the tile against one straight edge of which is abutted the straight edge 5 of the jig 1.
Referring now to Figures 3 and 4, another form of tile cutter jig 11 is generally similar to that described above with reference to Figures 1 and 2. However, the two end supports 3,4 are replaced by respective bent-over end portions 13,14 of the generally triangular, flat, mild steel plate 12 on the underside thereof. The end support portion 14 constitutes a straight edge 15 which, in use of the jig 11, abuts a corresponding edge of a ceramic tile to be cut.
Along the hypotenuse of the generally triangular plate 12 are provided three different size, generally semi-circular cut-outs 20, 20', 20" for cutting or scribing corresponding lines on a tile. These are particularly useful for making cut-outs in tiles to fit around an appropriately diametered pipe.
An aperture 7, 17 is provided in the respective flat plate 2, 12 and enables the tile below to be held by the user of each jig 1,11 during the cutting operations.
it will be appreciated that each plate 2,12 may have any number of tapered slots 6,16 which can be parallel or Inclined to the straight edge 5,1 sand which need not necessarily be straight but may be curved.
Also, the jig 1 which is described above for use by a right-handed person, may be made in a lefthanded form, as is the jig 11.
The material from which the jigs 1,11 are made, can be of any suitable type, as long as it is sufficiently rigid. For instance, it may be manufacturned from a rigid plastics material, although metallic materials, such as, mild steel, are preferred.
1. Cutter or scribe jig comprising a generally flat plate to which is attached means defining a straight edge and which has therein a slot of tapered cross-section, the slot being at a predetermined orientation with respect to the straight edge and being arranged to receive and guide the working end of a cutter or scribe during a respective cutting or scribing operation.
2. Ajig according to claim 1, wherein the flat plate is generally triangular in shape.
3. A jig according to claim 1 or 2, wherein the flat plate is fixed to a pair of spaced supports on one face thereof, with one of the supports constituting said means defining the straight edge which, in use of the jig, abuts a corresponding straight edge or other straight surface of an article to be cut or scribed.
4. A jig according to claim 1,2 or 3, wherein the
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (11)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Cutter or scribe jig This invention relates to a jig for a cutter or scribe which can be used for cutting or scribing planar articles, such as tiles or sheet glass. In accordance with the invention, there is provided a cutter or scribe jig comprising a generally flat plate to which is attached means defining a straight edge and which has therein a slot of tapered crosssection, the slot being at a predetermined orientation with respect to the straight edge and being arranged to receive and guide the working end of a cutter or scribe during a respective cutting or scribing operation. Preferably, the flat plate is generally triangular in shape and is fixed to a pair of spaced supports on one face thereof, one of the supports constituting said means defining the straight edge which, In use of the guide, abuts a corresponding straight edge or other straight surface of an article, such as a ceramic tile, to be cut or scribed prior to cutting. The slot in the flat plate will usually be straight also, as well as being either parallel or at a predetermined angle to the straight edge. However, an arcuate slot may be used. The tapered cross-section of the slot is preferably V-shaped, although any suitable cross-section may be employed, as long as it is capable of receiving and guiding the working end of a cutter or scribe. Advantageously, and in use of the jig, the cutting or scribing blade or wheel of the cutter or scribe protrudes through the slot, with the end of its associated holder or end region adjacent its cutting or scribing edge resting upon the tapered surfaces of the slot. Also, the flat plate may be provided with an aperture through which the article to be cut or scribed can be held steady during the cutting or scribing operation. Further, at least one edge of the flat plate can have one or more arcuate cut-outs therein, which is or are preferably of semi-circular shape. Such a cut-out enables an arcuate portion of, say, a ceramic tile to be cut or scribed. Two preferred embodiments of ceramic tile cutter jig, in accordance with the invention, will now be described by way of example and with reference to the accompanying drawings in which: Figure 1 is a plan view of a first embodiment of tile cutter jig; Figure 2 is a section along the line ll-ll in Figure 1; Figure 3 is a plan view of a second embodiment of tile cutter jig; and Figure 4 is a side elevational view of the jig shown in Figure 3, in the direction of the arrow A. Referring firstly to Figures 1 and 2 of the drawings,a tile cutter jig 1 comprises a generally triangular, flat, mild steel plate 2 at one end of which is secured a first flat support 3 and at the other end of which is secured a second flat support 4. The two supports 3,4 are on the underside of the flat plate 2 and the second support 4 provides a straight edge 5 which, in use of the jig 1, abuts a corresponding straight edge of a tile to be cut. Due to the thickness of the supports 3,4 the plate 2 is spaced from the upper surface of the tile. A straight V-shaped slot 6 extends between the two supports 3,4 in the plate 2 and is such as to receive and guide the working end of a tile cutter (not shown). The lower end region adjacent the cutting edge of the blade or wheel of the cutter rests between and upon the V-shaped surfaces of the slot 6, whilst its cutting blade or wheel protrudes through the slot to engage the upper surface of the tile against one straight edge of which is abutted the straight edge 5 of the jig 1. Referring now to Figures 3 and 4, another form of tile cutter jig 11 is generally similar to that described above with reference to Figures 1 and 2. However, the two end supports 3,4 are replaced by respective bent-over end portions 13,14 of the generally triangular, flat, mild steel plate 12 on the underside thereof. The end support portion 14 constitutes a straight edge 15 which, in use of the jig 11, abuts a corresponding edge of a ceramic tile to be cut. Along the hypotenuse of the generally triangular plate 12 are provided three different size, generally semi-circular cut-outs 20, 20', 20" for cutting or scribing corresponding lines on a tile. These are particularly useful for making cut-outs in tiles to fit around an appropriately diametered pipe. An aperture 7, 17 is provided in the respective flat plate 2, 12 and enables the tile below to be held by the user of each jig 1,11 during the cutting operations. it will be appreciated that each plate 2,12 may have any number of tapered slots 6,16 which can be parallel or Inclined to the straight edge 5,1 sand which need not necessarily be straight but may be curved. Also, the jig 1 which is described above for use by a right-handed person, may be made in a lefthanded form, as is the jig 11. The material from which the jigs 1,11 are made, can be of any suitable type, as long as it is sufficiently rigid. For instance, it may be manufacturned from a rigid plastics material, although metallic materials, such as, mild steel, are preferred. CLAIMS
1. Cutter or scribe jig comprising a generally flat plate to which is attached means defining a straight edge and which has therein a slot of tapered cross-section, the slot being at a predetermined orientation with respect to the straight edge and being arranged to receive and guide the working end of a cutter or scribe during a respective cutting or scribing operation.
2. Ajig according to claim 1, wherein the flat plate is generally triangular in shape.
3. A jig according to claim 1 or 2, wherein the flat plate is fixed to a pair of spaced supports on one face thereof, with one of the supports constituting said means defining the straight edge which, in use of the jig, abuts a corresponding straight edge or other straight surface of an article to be cut or scribed.
4. A jig according to claim 1,2 or 3, wherein the slot in the flat plate is straight and normal to the straight edge.
5. Ajig according to any preceding claim, wherein the cross-section of the slot is V-shaped.
6. A jig according to any preceding claim, wherein the flat plate has an aperture therein through which an article to be cut or scribed can be held steady during a cutting or scribing operation.
7. A jig according to any preceding claim, wherein at least one edge of the flat plate has one or more cut-outs therein.
8. A jig according to claim 7, wherein the or at least one of the cut-outs is arcuate, preferably, semi-circular.
9. Ajig according to claim 7 or 8, wherein the or each cut-out is in the hypotenuse of the generally triangular plate.
10. A jig according to any of claims 4 to 9, when dependent upon claim 1 or 2, wherein opposed ends of the plate are bent-over to form a pair of spaced supports on one face thereof, with the free edge of one of the supports defining the straight edge.
11. A "ceramic" tile cutting jig substantially as hereinbefore described with reference to Figures 1 and 2 or Figures 3 and 4 of the accompanying drawings.
GB08329891A 1982-12-03 1983-11-09 Cutter or scribe jig Expired GB2131345B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08329891A GB2131345B (en) 1982-12-03 1983-11-09 Cutter or scribe jig

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8234619 1982-12-03
GB08329891A GB2131345B (en) 1982-12-03 1983-11-09 Cutter or scribe jig

Publications (3)

Publication Number Publication Date
GB8329891D0 GB8329891D0 (en) 1983-12-14
GB2131345A true GB2131345A (en) 1984-06-20
GB2131345B GB2131345B (en) 1986-06-11

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5480081A (en) * 1993-09-24 1996-01-02 Diamant Boart, Inc. Scoring and breaking device with a carrying case therefor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB419645A (en) * 1933-04-07 1934-11-15 Warren Frederick Flesselles An improved square
GB526455A (en) * 1939-03-16 1940-09-18 Henry Fairbrother Combination tool
GB665159A (en) * 1949-04-04 1952-01-16 Kelvin & Hughes Ltd Improvements in or relating to navigational devices
GB1184127A (en) * 1967-08-31 1970-03-11 Pierre Lagrosse Set Square
GB2091163A (en) * 1981-01-16 1982-07-28 Plas Plugs Ltd Improvements in or relating to tile parting devices

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB419645A (en) * 1933-04-07 1934-11-15 Warren Frederick Flesselles An improved square
GB526455A (en) * 1939-03-16 1940-09-18 Henry Fairbrother Combination tool
GB665159A (en) * 1949-04-04 1952-01-16 Kelvin & Hughes Ltd Improvements in or relating to navigational devices
GB1184127A (en) * 1967-08-31 1970-03-11 Pierre Lagrosse Set Square
GB2091163A (en) * 1981-01-16 1982-07-28 Plas Plugs Ltd Improvements in or relating to tile parting devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5480081A (en) * 1993-09-24 1996-01-02 Diamant Boart, Inc. Scoring and breaking device with a carrying case therefor

Also Published As

Publication number Publication date
GB8329891D0 (en) 1983-12-14
GB2131345B (en) 1986-06-11

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PCNP Patent ceased through non-payment of renewal fee