GB1105308A - A guard for a rotatable disc, for example a grinding disc, and a portable tool embodying such a guard - Google Patents
A guard for a rotatable disc, for example a grinding disc, and a portable tool embodying such a guardInfo
- Publication number
- GB1105308A GB1105308A GB3621564A GB3621564A GB1105308A GB 1105308 A GB1105308 A GB 1105308A GB 3621564 A GB3621564 A GB 3621564A GB 3621564 A GB3621564 A GB 3621564A GB 1105308 A GB1105308 A GB 1105308A
- Authority
- GB
- United Kingdom
- Prior art keywords
- guard
- disc
- outlet
- extension
- sept
- 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
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/04—Protective covers for the grinding wheel
- B24B55/05—Protective covers for the grinding wheel specially designed for portable grinding machines
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
- Sawing (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
1,105,308. Machinery guards F. MELLOR. 2 Sept., 1965 [3 Sept., 1964; 30 June, 1965], Nos. 36215/64 and 27650/65. Heading F2J. [Also in Divisions B3 and F4] A thin flexible cutting disc 2 of a portable cutting or grinding tool is protected over half its area by a semi-circular guard 4, air laden with dust being extracted tangentially through an outlet 22 parallel to and normal to the plane of the disc and leading to a cyclone separator driven by a vacuum pump (not shown). The outlet 22 is connected to a flat, open edge 12 of the guard by a straight, closed edge 14 forming part of a triangular outlet extension 16. In a further embodiment (Fig. 3, not shown), a chasing tool is adjustable in position in a slot (346) of a guard (304) when it swings on a triangular arm (348), the apex thereof being pivoted to the guard at (352) and an extension (360) thereof being olamped by a wing-nut to a pin running in a groove (302) in the upper surface of the guard. Dust is collected as before, a closed portion (314) being curved and an outlet extension (316) lying at 125 degrees to a flanged open edge (312). In a third embodiment (Fig. 4, not shown), the guard comprises two parts (404), (406) which are telescopic and spring-biased to the open position. Flanges (442) abut the wall, the part (465) retracting into the part (404) as the disc cuts deeper into the wall. In a final embodiment( not illustrated), ), two parallel discs are housed in one guard.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3621564A GB1105308A (en) | 1964-09-03 | 1964-09-03 | A guard for a rotatable disc, for example a grinding disc, and a portable tool embodying such a guard |
BE669110D BE669110A (en) | 1964-09-03 | 1965-09-02 | |
FR30225A FR1466319A (en) | 1964-09-03 | 1965-09-02 | Debris and dust removal device for grinding or cutting tools |
CH1231965A CH444699A (en) | 1964-09-03 | 1965-09-03 | Device for rotating tools with at least one disc-shaped grinding or cutting element for removing the grinding dust or the cutting chips |
US805960*A US3585980A (en) | 1964-09-03 | 1969-02-20 | Method and device for removing mortar or the like from between superimposed rows of bricks or the like |
DE19691502527 DE1502527A1 (en) | 1964-09-03 | 1969-10-29 | Suction device for a portable grinder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3621564A GB1105308A (en) | 1964-09-03 | 1964-09-03 | A guard for a rotatable disc, for example a grinding disc, and a portable tool embodying such a guard |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1105308A true GB1105308A (en) | 1968-03-06 |
Family
ID=10386054
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3621564A Expired GB1105308A (en) | 1964-09-03 | 1964-09-03 | A guard for a rotatable disc, for example a grinding disc, and a portable tool embodying such a guard |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1105308A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2252523A (en) * | 1991-02-08 | 1992-08-12 | Gateway Properties | Dust collection system for abrasive cutting wheel |
FR2757434A1 (en) * | 1996-12-20 | 1998-06-26 | Europ Semi Remorques | Hand-held power tool with self-adjusting safety shroud |
GB2329440A (en) * | 1997-09-23 | 1999-03-24 | Liu Wun Hui | Front shield of power sanding machine |
CN101138841B (en) * | 2006-09-06 | 2011-06-08 | 罗伯特·博世有限公司 | Protective hood of a hand held machine tool |
-
1964
- 1964-09-03 GB GB3621564A patent/GB1105308A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2252523A (en) * | 1991-02-08 | 1992-08-12 | Gateway Properties | Dust collection system for abrasive cutting wheel |
GB2252523B (en) * | 1991-02-08 | 1994-05-18 | Gateway Properties | Dust collection system |
FR2757434A1 (en) * | 1996-12-20 | 1998-06-26 | Europ Semi Remorques | Hand-held power tool with self-adjusting safety shroud |
GB2329440A (en) * | 1997-09-23 | 1999-03-24 | Liu Wun Hui | Front shield of power sanding machine |
CN101138841B (en) * | 2006-09-06 | 2011-06-08 | 罗伯特·博世有限公司 | Protective hood of a hand held machine tool |
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