CA1261178A - Dowelling jig - Google Patents
Dowelling jigInfo
- Publication number
- CA1261178A CA1261178A CA000498915A CA498915A CA1261178A CA 1261178 A CA1261178 A CA 1261178A CA 000498915 A CA000498915 A CA 000498915A CA 498915 A CA498915 A CA 498915A CA 1261178 A CA1261178 A CA 1261178A
- Authority
- CA
- Canada
- Prior art keywords
- holes
- drill
- guide
- jig
- peg
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
- B23B47/28—Drill jigs for workpieces
- B23B47/287—Jigs for drilling plate-like workpieces
- B23B47/288—Jigs for drilling plate-like workpieces involving dowelling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
ABSTRACT
The invention provides a jig which uses pairs of similar holes which are positioned symetrically about the centre plane so that if a first hole of a pair is used in forming a dowel hole in the first of the boards, the jig can be reversed and the second hole of the pair is then used to form the dowel hole in the other board.
The invention provides a jig which uses pairs of similar holes which are positioned symetrically about the centre plane so that if a first hole of a pair is used in forming a dowel hole in the first of the boards, the jig can be reversed and the second hole of the pair is then used to form the dowel hole in the other board.
Description
This invention relates to jigs used as guides for drilling holes in boards, and more particularly to jigs used to locate drills when making holes to receive dowels.
Dowels are often used for joining two boards together when a strong and accurate connection is required. ~ typical use of this technique is to join two similar boards in side-by-side relationship to make one wider board. Joining materials, such as adhesives, are usually used in conjunction with the dowelling.
It is possible to prepare ~he two boards to receive dowels using common shop tools such as a drill~ ruler, and pencil. The locations of the holes must be marked accurately.
When joining two similar boards together in a side-by-side relationship, a first dowel hole is located in one board with respect to an end of the board and also with respect to the large main face of the board ~typically a top surface).
Subsequent holes for dowels are measured off in a similar manner. This must then be repeated for the second board taking care to ensure that the holes in this board will align accurately with the corresponding holes in the first board.
This manual process often results in unacceptable errors which prevent accurate connection of the boards.
The accuracy of the dowelling connection can be improved by using various kinds of jigs which are available to assist in locating a drill when drilling the dowel holes. All jigs are used in a somewhat similar manner. They are positioned on the board relative to the various surfaces of the board and a hole in the jig is used to guide the drill bit which forms the first dowel hole in the first board. The same relative positioning is used to locate the jig on the second board and this same hole, or a corresponding hole in the jig, is used to drill a dowel hole in the second board so that the holes will be aligned accurately when the boards are joined.
One example of prior art is U.S. Patent No. 3,674,376 which discloses a jig that can be used to drill holes in the sides of boards to be joined in side-by-side relationship. It requires that the two boards be clamped together so that the main surfaces of the boards are substantially parallel. In order to allow the dowelling holes to be drilled accurately, the boards are clamped and located in the jig so that the ends of the boards are substantially coplanar and the sides of the boards are also coplanar. The dowel holes are drilled using a drill bit guide which pivots to locate first on one and then on the other board. This jig is inherently susceptible to errors due to the moving part and the need for its positive location.
~lso the fact that the two boards must be clamped together is time consuming and may also lead to a degree of error.
The present invention provides a jig which is intended to overcome problems inherent in the art. The present jig is functionally symmetrical about a center plane. Referring to the previously used example of joining two boards together in side-by-side relationship, the present jig uses pairs of similar holes which are positioned symetrically about the centre plane so that if a first hole of a pair is used in forming a dowel hole in the first of the boards, the jig can be reversed and ~he second hole of the pair is then used to form the dowel hole in -- 2 ~
6~
the other board.
The invention will be better understood with reference to the following description taken in combination with the drawings, in which Fig. 1 is an exploded perspective view of two exemplary similar boards to be connected in alignment with one another to make a wider board using a jig according to the invention;
Fig. 2 is an exploded perspective view of a preferred embodiment of the jig;
Fig. 3 is a perspective view showing how the jig is used as a guide for drilling a first dowel hole in a side face of one of the boards with the jig locating on the end and on a main face of the board;
Fig. 4 is a view similar to Fig. 3, and showing how the jig is used to drill a second dowel hole using the first dowel hole as a reference;
Fig. 5 is a perspective view of a second embodiment of the jig being used to locate dowel holes in the main face of a board and using a marker line as a guide;
Fig. 6 is an exploded perspective view of another embodiment of the jig in use to connect two boards to one another; and Fig. 7 is a perspective view of a modified preferred embodiment having an extension for use with longer boards.
Reference is made firstly to Fig. 1 of the drawings which shows two similar boards 20 and 22 to be joined in side-by-side relationship by bringing side faces 24 and 26 into contact with one another so that main surfaces 28 and 30 will be :~2~
substantially coplanar as will end faces 32 and 34. The boards are to be located relative to one another by dowels 36 which will fit into respective pairs of aligned holes 38, 40 and 39, 41 in boards 20 and 220 A preferred embodiment of a jig for use in preparing the holes 38, 39, 40 and 41 is shown in Fig. 2.
The jig consists of a flat location plate 42 which is attached rigidly to an elongate drill guide 44 by set screws 46 and 47. The guide 44 has a round peg 48 for threaded engagement in a hole 50 formed in the drill guide. (A similar hole 51 is also provided at the other end of the jig for receiving the peg as will be described.) Drill guide holes 58 in the guide extend between first and second faces 54, 56 (one of which can be seen) of the guide and are identified by lettering on both faces. The holes 58 are labelled to correspond to the fact that the holes are in pairs, positioned symetrically with reference to the longitudinal centre of the guide as measured between the reference surface of the peg when placed in the holes 50 or 51.
For instance, in the embodiment shown, there are four sets of holes labelled aA", UB", "C~ and "Da and a central hole labelled n E~. In this embodiment all of the holes are the same diameter and lie with their axes in a common plane which is parallel with a reference surface on the underside of the plate 42.
E-~idently, the hole sizes can be varied in pairs as preferred.
The relationship of the holes 58 can be described in another way. The distance between the surface of the peg 48 and adjacent hole ~Au is the same as from the same surface of the peg when it is positioned in hole 51 and the other hole ~A~.
. ~
Similarly for the other ~oles in any pair.
Reference is next made to Fig. 3 which illustrates the jig about to be used to prepare first dowel hole 38 (Fig. l) in board 20. As can be seen in Fig. 31 the jig is placed on the board such that the underside or reference surface of the location plate 42 lies on the main surface of the board and the peg 48 is in contact with the end face 32 of the board. The guide 44 is of course in engagement with the side face 24 of the board so that there is effectively location on three faces.
A drill bit 64 having a drill collar 66 is guided through an appropriate hole ~B~ and the drill is advanced until the collar 66 engages the drill guide. The jig is then moved along the side face of the board until the peg 48 is engaged in the newly formed hole 38 as shown in Fig. 4. With the location plate again flush on the main surface of the board, the drill is used to drill hole 39 (Fig. l), this time using the single center guide hole n E". Of course any guide hole could have been used, but the assumption is made that the required spacing between the dowellings demands that this particular hole be used. Should further holes be required in the board, then the procedure can be repeated this time using the hole 39 as location for the peg 48.
It will be appreciated of course that the peg 48 must be no greater in diameter than the hole being drilled. It is therefore convenient to use a peg which is the same size as the smallest hole in the guide. However, should a smaller peg be used, the jig must be biased lengthwise to locate the peg against the wall of the hole.
Having completed the drllling oE the board 20, the procedure is repeated for the board 22. However, the peg must first be taken from threaded openlng 50 and placed in threaded opening 51 (see FigO 2). Once this is done, the jig is simply 5 reversed and positioned on the second board from the end face 34 - (Fig. 1) and the first hole 40 is formed by drilling through guide hole "B~ adjacent the new position of the peg.
Subsequently, the peg is placed in hole 40 and the drill engaged through center opening ~E~ to create the opening 41. Once the 10 holes have been created, the dowels can be used to connect it to i the boards and, preferably using adhesive, the joint is made to `1 create a wider board.
~ Dowelling is often used for other purposes~ One r example is shown in Fig. 5 in combination with an alternative 15 embodiment of the jig. This embodiment differs from that described previously in that a different location plate 74 is used in place of the location plate 42 described with reference to Fig. 2. The purpose of this difference is to provide - clearance for a drill to enter from the guide from the same side 20 as the plate to facilitate drilling dowel holes in the surface of a board 70. The location plate serves no purpose in drilling holes in the main surface, but differs from the previous jig in that it will permit use for this purpose as well as for the purposes described previously. However, it is less stable when 25 used in the Fig. 3 arrangement due to its shorter length and smaller surface in contact with the board.
As seen in Fig. 5, the jig is sitting on the main surface of the board 70 in alignment with a reference line 71 drawn on the board. A guide 72 has at its ends markings 73 (one of which can be seen) for alignment on the line 71. Holes are drilled in the same fashion as described with reference to Figs.
3 and 4 with the first hole providing location for a peg 76 so that the second hole can be drilled. A board to be attached to the board 70 in a right angle arrangement will have holes drilled in its end using the same procedure as that described with reference to Figs. 3 and 4.
A further embodiment is shown in Fig. 6 being used to provide the holes for connecting the boards 20, 22 shown in Fig~
1. In this instance, a guide 80 has threaded openings 81 and 83 extending through it to receive peg 83 from either side. Also, a location plate 82 is provided having a pair of parallel slots 88 through which are engaged studs 84 which are fixed to the lS guide 80. Wing nuts 86 are provided for fastening the plate to the guide so that the guide can be moved into the position shown in Fig. 6 for use with the board 20v After releasing the wing nuts, the plate can be moved into a position where it would be overlapping board 22 so that when the peg 83 has been placed in the guide from the ghost position shown in Fig. 6, drilling can take place in the board 22 using the same holes as those used to drill the board 20.
Preferably the arrangement of holes in the guide 80 would be the sa~e as those described with reference to Fig. 2 to give this embodiment of jig a maximum utility. Evidently however, it would be possible to use it with a different arrangement of holes if preferred.
The final embodiment is shown in Fig. 7 and this embodiment is essentially a modification of the Fig. 2 embodiment. All of the parts are the same as those shown in Fig. ~, with the exception that a drill guide 92 has an end opening formed in it to releaseably receive an extension rod 96 which can be locked in place by a screw 97. An adjustable collar 98 is provided for location and to receive a peg 99 which can be used in the guide 92 as previously describedO The peg 99 forms an end stop for locating the jig on long boards ~Ihere the dowel holes are to be formed remote from the end of the board.
Also, the peg can then be placed in the dowel hole for locating the drill to make another dowel hole and so on. The arrangement is particularly useful for connecting long boards or sheets in side-by-side relationship.
Clearly the arrangement shown in Fig. 7 would have to be reversible so that at the other end of the guide 92, a similar opening and grub screw would be provided to permit the rod to be positioned at the other end of the jig for working on a second board.
These and other embodiments of the invention are within the scope of the invention as claimed.
Dowels are often used for joining two boards together when a strong and accurate connection is required. ~ typical use of this technique is to join two similar boards in side-by-side relationship to make one wider board. Joining materials, such as adhesives, are usually used in conjunction with the dowelling.
It is possible to prepare ~he two boards to receive dowels using common shop tools such as a drill~ ruler, and pencil. The locations of the holes must be marked accurately.
When joining two similar boards together in a side-by-side relationship, a first dowel hole is located in one board with respect to an end of the board and also with respect to the large main face of the board ~typically a top surface).
Subsequent holes for dowels are measured off in a similar manner. This must then be repeated for the second board taking care to ensure that the holes in this board will align accurately with the corresponding holes in the first board.
This manual process often results in unacceptable errors which prevent accurate connection of the boards.
The accuracy of the dowelling connection can be improved by using various kinds of jigs which are available to assist in locating a drill when drilling the dowel holes. All jigs are used in a somewhat similar manner. They are positioned on the board relative to the various surfaces of the board and a hole in the jig is used to guide the drill bit which forms the first dowel hole in the first board. The same relative positioning is used to locate the jig on the second board and this same hole, or a corresponding hole in the jig, is used to drill a dowel hole in the second board so that the holes will be aligned accurately when the boards are joined.
One example of prior art is U.S. Patent No. 3,674,376 which discloses a jig that can be used to drill holes in the sides of boards to be joined in side-by-side relationship. It requires that the two boards be clamped together so that the main surfaces of the boards are substantially parallel. In order to allow the dowelling holes to be drilled accurately, the boards are clamped and located in the jig so that the ends of the boards are substantially coplanar and the sides of the boards are also coplanar. The dowel holes are drilled using a drill bit guide which pivots to locate first on one and then on the other board. This jig is inherently susceptible to errors due to the moving part and the need for its positive location.
~lso the fact that the two boards must be clamped together is time consuming and may also lead to a degree of error.
The present invention provides a jig which is intended to overcome problems inherent in the art. The present jig is functionally symmetrical about a center plane. Referring to the previously used example of joining two boards together in side-by-side relationship, the present jig uses pairs of similar holes which are positioned symetrically about the centre plane so that if a first hole of a pair is used in forming a dowel hole in the first of the boards, the jig can be reversed and ~he second hole of the pair is then used to form the dowel hole in -- 2 ~
6~
the other board.
The invention will be better understood with reference to the following description taken in combination with the drawings, in which Fig. 1 is an exploded perspective view of two exemplary similar boards to be connected in alignment with one another to make a wider board using a jig according to the invention;
Fig. 2 is an exploded perspective view of a preferred embodiment of the jig;
Fig. 3 is a perspective view showing how the jig is used as a guide for drilling a first dowel hole in a side face of one of the boards with the jig locating on the end and on a main face of the board;
Fig. 4 is a view similar to Fig. 3, and showing how the jig is used to drill a second dowel hole using the first dowel hole as a reference;
Fig. 5 is a perspective view of a second embodiment of the jig being used to locate dowel holes in the main face of a board and using a marker line as a guide;
Fig. 6 is an exploded perspective view of another embodiment of the jig in use to connect two boards to one another; and Fig. 7 is a perspective view of a modified preferred embodiment having an extension for use with longer boards.
Reference is made firstly to Fig. 1 of the drawings which shows two similar boards 20 and 22 to be joined in side-by-side relationship by bringing side faces 24 and 26 into contact with one another so that main surfaces 28 and 30 will be :~2~
substantially coplanar as will end faces 32 and 34. The boards are to be located relative to one another by dowels 36 which will fit into respective pairs of aligned holes 38, 40 and 39, 41 in boards 20 and 220 A preferred embodiment of a jig for use in preparing the holes 38, 39, 40 and 41 is shown in Fig. 2.
The jig consists of a flat location plate 42 which is attached rigidly to an elongate drill guide 44 by set screws 46 and 47. The guide 44 has a round peg 48 for threaded engagement in a hole 50 formed in the drill guide. (A similar hole 51 is also provided at the other end of the jig for receiving the peg as will be described.) Drill guide holes 58 in the guide extend between first and second faces 54, 56 (one of which can be seen) of the guide and are identified by lettering on both faces. The holes 58 are labelled to correspond to the fact that the holes are in pairs, positioned symetrically with reference to the longitudinal centre of the guide as measured between the reference surface of the peg when placed in the holes 50 or 51.
For instance, in the embodiment shown, there are four sets of holes labelled aA", UB", "C~ and "Da and a central hole labelled n E~. In this embodiment all of the holes are the same diameter and lie with their axes in a common plane which is parallel with a reference surface on the underside of the plate 42.
E-~idently, the hole sizes can be varied in pairs as preferred.
The relationship of the holes 58 can be described in another way. The distance between the surface of the peg 48 and adjacent hole ~Au is the same as from the same surface of the peg when it is positioned in hole 51 and the other hole ~A~.
. ~
Similarly for the other ~oles in any pair.
Reference is next made to Fig. 3 which illustrates the jig about to be used to prepare first dowel hole 38 (Fig. l) in board 20. As can be seen in Fig. 31 the jig is placed on the board such that the underside or reference surface of the location plate 42 lies on the main surface of the board and the peg 48 is in contact with the end face 32 of the board. The guide 44 is of course in engagement with the side face 24 of the board so that there is effectively location on three faces.
A drill bit 64 having a drill collar 66 is guided through an appropriate hole ~B~ and the drill is advanced until the collar 66 engages the drill guide. The jig is then moved along the side face of the board until the peg 48 is engaged in the newly formed hole 38 as shown in Fig. 4. With the location plate again flush on the main surface of the board, the drill is used to drill hole 39 (Fig. l), this time using the single center guide hole n E". Of course any guide hole could have been used, but the assumption is made that the required spacing between the dowellings demands that this particular hole be used. Should further holes be required in the board, then the procedure can be repeated this time using the hole 39 as location for the peg 48.
It will be appreciated of course that the peg 48 must be no greater in diameter than the hole being drilled. It is therefore convenient to use a peg which is the same size as the smallest hole in the guide. However, should a smaller peg be used, the jig must be biased lengthwise to locate the peg against the wall of the hole.
Having completed the drllling oE the board 20, the procedure is repeated for the board 22. However, the peg must first be taken from threaded openlng 50 and placed in threaded opening 51 (see FigO 2). Once this is done, the jig is simply 5 reversed and positioned on the second board from the end face 34 - (Fig. 1) and the first hole 40 is formed by drilling through guide hole "B~ adjacent the new position of the peg.
Subsequently, the peg is placed in hole 40 and the drill engaged through center opening ~E~ to create the opening 41. Once the 10 holes have been created, the dowels can be used to connect it to i the boards and, preferably using adhesive, the joint is made to `1 create a wider board.
~ Dowelling is often used for other purposes~ One r example is shown in Fig. 5 in combination with an alternative 15 embodiment of the jig. This embodiment differs from that described previously in that a different location plate 74 is used in place of the location plate 42 described with reference to Fig. 2. The purpose of this difference is to provide - clearance for a drill to enter from the guide from the same side 20 as the plate to facilitate drilling dowel holes in the surface of a board 70. The location plate serves no purpose in drilling holes in the main surface, but differs from the previous jig in that it will permit use for this purpose as well as for the purposes described previously. However, it is less stable when 25 used in the Fig. 3 arrangement due to its shorter length and smaller surface in contact with the board.
As seen in Fig. 5, the jig is sitting on the main surface of the board 70 in alignment with a reference line 71 drawn on the board. A guide 72 has at its ends markings 73 (one of which can be seen) for alignment on the line 71. Holes are drilled in the same fashion as described with reference to Figs.
3 and 4 with the first hole providing location for a peg 76 so that the second hole can be drilled. A board to be attached to the board 70 in a right angle arrangement will have holes drilled in its end using the same procedure as that described with reference to Figs. 3 and 4.
A further embodiment is shown in Fig. 6 being used to provide the holes for connecting the boards 20, 22 shown in Fig~
1. In this instance, a guide 80 has threaded openings 81 and 83 extending through it to receive peg 83 from either side. Also, a location plate 82 is provided having a pair of parallel slots 88 through which are engaged studs 84 which are fixed to the lS guide 80. Wing nuts 86 are provided for fastening the plate to the guide so that the guide can be moved into the position shown in Fig. 6 for use with the board 20v After releasing the wing nuts, the plate can be moved into a position where it would be overlapping board 22 so that when the peg 83 has been placed in the guide from the ghost position shown in Fig. 6, drilling can take place in the board 22 using the same holes as those used to drill the board 20.
Preferably the arrangement of holes in the guide 80 would be the sa~e as those described with reference to Fig. 2 to give this embodiment of jig a maximum utility. Evidently however, it would be possible to use it with a different arrangement of holes if preferred.
The final embodiment is shown in Fig. 7 and this embodiment is essentially a modification of the Fig. 2 embodiment. All of the parts are the same as those shown in Fig. ~, with the exception that a drill guide 92 has an end opening formed in it to releaseably receive an extension rod 96 which can be locked in place by a screw 97. An adjustable collar 98 is provided for location and to receive a peg 99 which can be used in the guide 92 as previously describedO The peg 99 forms an end stop for locating the jig on long boards ~Ihere the dowel holes are to be formed remote from the end of the board.
Also, the peg can then be placed in the dowel hole for locating the drill to make another dowel hole and so on. The arrangement is particularly useful for connecting long boards or sheets in side-by-side relationship.
Clearly the arrangement shown in Fig. 7 would have to be reversible so that at the other end of the guide 92, a similar opening and grub screw would be provided to permit the rod to be positioned at the other end of the jig for working on a second board.
These and other embodiments of the invention are within the scope of the invention as claimed.
Claims (7)
OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A drill jig for use in guiding a drill to create holes in two pieces of wood for receiving dowels to connect the pieces to one another, the jig comprising:
an elongate drill guide having parallel first and second faces;
peg means having a reference face and a drill guide including means combining with the peg means to releasably retain the peg means selectively in one of two spaced-apart positions, with the reference face extending perpendicularly from the first face;
the drill guide defining at least one pair of similar holes extending through the guide between said faces, the holes being spaced equally one from each of said two positions with the axes of the holes lying in a plane;
a location plate coupled to the drill guide and defining a location surface lying in a second plane parallel to said claim so that the guide can be used to form corresponding dowel holes in the pieces of wood by using the peg means in a first of the positions and drilling through a first of the pair of guide holes, and then, using the peg means in the other positions, drilling the second piece of wood through the second of the pair of holes.
an elongate drill guide having parallel first and second faces;
peg means having a reference face and a drill guide including means combining with the peg means to releasably retain the peg means selectively in one of two spaced-apart positions, with the reference face extending perpendicularly from the first face;
the drill guide defining at least one pair of similar holes extending through the guide between said faces, the holes being spaced equally one from each of said two positions with the axes of the holes lying in a plane;
a location plate coupled to the drill guide and defining a location surface lying in a second plane parallel to said claim so that the guide can be used to form corresponding dowel holes in the pieces of wood by using the peg means in a first of the positions and drilling through a first of the pair of guide holes, and then, using the peg means in the other positions, drilling the second piece of wood through the second of the pair of holes.
2. A drill jig as claimed in claim 1 in which the location plate terminates in alignment with said second surface.
3. A drill jig as claiimed in claim 1 in which there are several pairs of similar holes and in which the
4. A drill jig as claimed in claim 1 in which the means combining with the peg means comprises a threaded opening in the drill guide and corresponding threads on the peg.
5. A drill jig as claimed in claim 3 in which all of the holes are of similar sizes.
6. A drill jig as claimed in claim 1 in which the location plate is releasably connected to the drill guide, the drill guide including a pair of studs projecting through a pair of slots in the plate and retained in position by releasable threaded elements.
7. A drill jig as claimed in claim 1 and further including an extension piece releasably attached to an end of the drill guide and having a stop for positioning the drill guide remote from a side surface of one of the pieces of wood.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000498915A CA1261178A (en) | 1986-01-03 | 1986-01-03 | Dowelling jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000498915A CA1261178A (en) | 1986-01-03 | 1986-01-03 | Dowelling jig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1261178A true CA1261178A (en) | 1989-09-26 |
Family
ID=4132219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000498915A Expired CA1261178A (en) | 1986-01-03 | 1986-01-03 | Dowelling jig |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1261178A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GR1002681B (en) * | 1996-07-29 | 1997-04-22 | Guide for opening holes in boards, whether wooden or made of wood derivatives, for their connection with rivets. | |
| EP0947271A2 (en) * | 1998-03-30 | 1999-10-06 | SFS Industrie Holding AG | Drill guide |
| US6561738B1 (en) * | 1999-10-20 | 2003-05-13 | Hoya Corporation | Spectacles lens boring jig positioning device |
| WO2005023470A2 (en) * | 2003-09-10 | 2005-03-17 | Susan Gillian Blessley | Drilling templates |
| US7189034B1 (en) * | 2005-12-05 | 2007-03-13 | Playstar, Inc. | Drill template |
| ES2702369A1 (en) * | 2017-08-29 | 2019-02-28 | A32Z Universal S L | Portable system of guided machining of drills by rule (Machine-translation by Google Translate, not legally binding) |
| ES2733742A1 (en) * | 2018-05-31 | 2019-12-02 | Madrigal Isidoro Pardo | Portable guided machining system for in-line drills (Machine-translation by Google Translate, not legally binding) |
-
1986
- 1986-01-03 CA CA000498915A patent/CA1261178A/en not_active Expired
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GR1002681B (en) * | 1996-07-29 | 1997-04-22 | Guide for opening holes in boards, whether wooden or made of wood derivatives, for their connection with rivets. | |
| EP0947271A2 (en) * | 1998-03-30 | 1999-10-06 | SFS Industrie Holding AG | Drill guide |
| EP0947271A3 (en) * | 1998-03-30 | 2002-11-06 | SFS intec Holding AG | Drill guide |
| US6561738B1 (en) * | 1999-10-20 | 2003-05-13 | Hoya Corporation | Spectacles lens boring jig positioning device |
| WO2005023470A2 (en) * | 2003-09-10 | 2005-03-17 | Susan Gillian Blessley | Drilling templates |
| WO2005023470A3 (en) * | 2003-09-10 | 2005-04-28 | Susan Gillian Blessley | Drilling templates |
| US7189034B1 (en) * | 2005-12-05 | 2007-03-13 | Playstar, Inc. | Drill template |
| ES2702369A1 (en) * | 2017-08-29 | 2019-02-28 | A32Z Universal S L | Portable system of guided machining of drills by rule (Machine-translation by Google Translate, not legally binding) |
| ES2733742A1 (en) * | 2018-05-31 | 2019-12-02 | Madrigal Isidoro Pardo | Portable guided machining system for in-line drills (Machine-translation by Google Translate, not legally binding) |
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