GB2318083A - An electric saw. - Google Patents
An electric saw. Download PDFInfo
- Publication number
- GB2318083A GB2318083A GB9621375A GB9621375A GB2318083A GB 2318083 A GB2318083 A GB 2318083A GB 9621375 A GB9621375 A GB 9621375A GB 9621375 A GB9621375 A GB 9621375A GB 2318083 A GB2318083 A GB 2318083A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electric saw
- cutting member
- electric
- saw according
- body portion
- 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.)
- Withdrawn
Links
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
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/06—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with reciprocating saw-blades
- B28D1/062—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with reciprocating saw-blades the saw blade rotating about its longitudinal axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
- B23D61/003—Rotary saws comprising an essentially cylindrical body having cutting teeth arranged on its surface
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Sawing (AREA)
Abstract
An electric saw (2) comprising a body portion (4), a longitudinally extending cutting member (6), and mounting means (8) for rotateably mounting the cutting member (6) to the body portion (4), the cutting member (6) having serrations (10) along its length and around its periphery, and the serrations (10) being such that they enable the cutting member (6) to cut when it is rotated during use of the electric saw (2). The electric saw may have an integral electric motor as a power source, or the electric saw may be driven by an electric drill.
Description
AN ELECTRIC SAW
This invention relates to an electric saw.
The present invention provides an electric saw comprising a body portion, a longitudinally extending cutting member, and mounting means for rotateably mounting the cutting member to the body portion, the cutting member having serrations along its length and around its periphery, and the serrations being such that they enable the cutting member to cut when it is rotating during use of te electric saw.
The electric saw may operate such that the cutting member is rotated at high speed, with the serrations then acting as teeth which grind into a piece of material to be cut. The electric saw may be such that it requires no horizontal sawing action as in the case of a saw with a conventional toothed blade. The electric saw of the present invention may also be such that it requires little downward pressure to effect the cutting.
Usually, the electric saw will be one in which the cutting member is of circular cross section.
The cutting member is preferably a serrated steel cord. Other types of cutting members and other types of materials may be employed if desired.
In a first embodiment of the invention, the electric saw is one in which the cutting member is rotated by a power source which is separately formed from the electric saw and which is attached to the electric saw to drive the cutting member.
In the first embodiment of the invention, the electric saw may be one in which the power source is an electric drill, and in which the mounting means is such that it has a portion for fitting into a chuck of the electric drill and for being rotated by the electric drill. The electric saw may thus be such that it includes the electric drill.
In a second embodiment of the invention, the electric saw is one in which the cutting member is rotated by a power source which is formed as an integral part of the electric saw.
The electric saw may be a hand-holdable portable device. Alternatively, if desired, the electric saw may be a fixed device fixed to a work bench. The electric saw will normally be so fixed to the work bench that the cutting member is vertically positioned, but it may be horizontally positioned if desired.
The mounting means for rotateably mounting the cutting member to the body portion may include a pair of bearings one for each end of the cutting member.
Embodiments of the invention will now be described solely by way of example and with reference to the accompanying drawings in which:
Figure 1 is a perspective view of a first electric saw of the invention;
Figure 2 is a side view of part of the electric saw shown in Figure 1;
Figure 3 is a side view of a second electric saw of the invention; and
Figure 4 is a perspective view of a third electric saw of the invention.
Referring to Figure 1, there is shown an electric saw 2 comprising a body portion 4, a longitudinally extending cutting member 6, and mounting means 8 for rotateably mounting the cutting member 6 in the body portion 4.
The cutting member (6) has serrations 10 along its length and around its periphery. The serrations 10 are such that they enable the cutting member 6 to cut when it is rotated during use of the electric saw 2. More specifically, during use of the electric saw 2, the cutting member 6 will rotate at speed and the serrations will act as teeth which grind into a work piece to be cut which, as shown in Figure 1 is a piece of wood 12. In Figure 1, it will be seen that the piece of wood 12 has just been cut into two pieces.
It will be appreciated that a horizontal sawing action is not required and also only a small amount of downward pressure is required on the electric saw 2.
The cutting member 6 is of circular cross section. The cutting member 6 is a serrated steel cord.
The electric saw 2 includes a known electric drill 14 which is used to rotate the cutting member 6.
As shown most clearly in Figure 2, the left hand mounting means 8 has a portion 16 which fits into a chuck 18 of the drill 14.
A pair of screw members 20 are employed for tightening the cutting member 6 in the mounting means 8. The right hand mounting means 8 as shown in Figure 2 has a butterfly end 22 for enabling the mounting means 8 to be screwed into or out of the body portion 4. This enables the cutting member 6 to be adjusted so that it is always rigid.
The body portion 4 has a slot 24 which is able to receive a person's fingers so that a part 26 of the body portion 4 becomes a handle. The body portion 4 is also provided with an aperture 28 for receiving a shank 30 of a handle 32.
Referring now to Figure 3, there is shown a second electric saw 2. Similar parts as in Figure 1 have been given the same reference numerals for ease of comparison and understanding. In Figure 3, it will be seen that the serrations 10 are helically formed along the length of the cutting member 6. It would also be seen that the body portion 4 has a front part 34 which is separately formed from the remainder of the body portion 4 and which is held in position by fixing means 36.
Referring now to Figure 4, there is shown a third electric saw 2 of the invention, again for ease of comparison and understanding, similar parts as in previous Figures have been given the same reference numerals. In Figure 4, the electric saw 2 is such that it has an integral motor (not shown) which is housed in a handle part 38 and which is operated by a trigger 40.
The electric motor used in Figure 4 and also the drills 14 shown in Figures 1 and 3 may be such that the speed of revolution of the cutting member 6 can be gradually increased by increasing pressure on the trigger 40 of either the electric motor shown in
Figure 4 or the drills 14 shown in Figures 1 and 3.
Various illustrated hand holds enable the electric saw steadily to be held. The various illustrated hand holds also enable the cutting member 6 to be steered, for example for cutting on a curve. The handle 32 shown in Figure 1 can be reversed for a left handed person. The electric saws 2 can be held at any desired angles.
It is to be appreciated that the embodiments of the invention described above with reference to the accompanying drawings have been given by way of example only and that modifications may be effected.
Thus, for example, the electric saw of the invention could be such that it is fitted to an industrial saw bench. Also, the cutting member 6 can be made of any suitable and appropriate materials and with any suitable and appropriate types of serrations. The mounting means 8 may include any suitable and appropriate type of bearings for facilitating rotation of the cutting member 6.
Claims (12)
1. An electric saw comprising a body portion, a longitudinally extending cutting member, and mounting means for rotateably mounting the cutting member to the body portion, the cutting member having serrations along its length and around its periphery, and the serrations being such that they enable the cutting member to cut when it is rotating during use of the electric saw.
2. An electric saw according to claim 1 in which the cutting member is of circular cross section.
3. An electric saw according to claim 2 in which the cutting member is a serrated steel cord.
4. An electric saw according to any one of the preceding claims and which is such that the cutting member is rotated by a power source which is separately formed from the electric saw and which is attached to the electric saw to drive the cutting member.
5. An electric saw according to claim 4 in which the power source is an electric drill, and in which the mounting means is such that it has a portion for fitting into a chuck or the electric drill and for being rotated by the electric drill.
6. An electric saw according to claim 4 or claim 5 and including the electric drill.
7. An electric saw according to any one of claims 1 - 3 in which the cutting member is rotated by a power source which is formed as an integral part of the electric saw.
8. An electric saw according to any one of the preceding claims and which is a hand-holdable portable device.
9. An electric saw according to any one of claims 1 - 7 and which is a fixed device fixed to a work bench.
10. An electric saw according to claim 9 in which the electric saw is so fixed to the work bench that the cutting member is vertically positioned.
11. An electric saw according to any one of the preceding claims in which the mounting means for rotateably mounting the cutting member to the body portion includes a pair of bearings one for each end of the cutting member.
12. An electric saw substantially as herein described with reference to the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9621375A GB2318083A (en) | 1996-10-14 | 1996-10-14 | An electric saw. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9621375A GB2318083A (en) | 1996-10-14 | 1996-10-14 | An electric saw. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9621375D0 GB9621375D0 (en) | 1996-12-04 |
| GB2318083A true GB2318083A (en) | 1998-04-15 |
Family
ID=10801379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9621375A Withdrawn GB2318083A (en) | 1996-10-14 | 1996-10-14 | An electric saw. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2318083A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB804489A (en) * | 1957-07-15 | 1958-11-19 | Sydney Brown | Revolving tension cutter for cutting material |
| GB1133799A (en) * | 1965-11-04 | 1968-11-20 | Zaklady Produckcji Elementow B | Method of cutting semi-plastic mould cast mass, especially of cellular concrete, and a device for application of this method |
| GB2055640A (en) * | 1979-08-03 | 1981-03-11 | Bueckardt G | Sanding or cutting tool |
-
1996
- 1996-10-14 GB GB9621375A patent/GB2318083A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB804489A (en) * | 1957-07-15 | 1958-11-19 | Sydney Brown | Revolving tension cutter for cutting material |
| GB1133799A (en) * | 1965-11-04 | 1968-11-20 | Zaklady Produckcji Elementow B | Method of cutting semi-plastic mould cast mass, especially of cellular concrete, and a device for application of this method |
| GB2055640A (en) * | 1979-08-03 | 1981-03-11 | Bueckardt G | Sanding or cutting tool |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9621375D0 (en) | 1996-12-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |