GB740542A - Improvements in and relating to grinding wheels, discs and the like - Google Patents
Improvements in and relating to grinding wheels, discs and the likeInfo
- Publication number
- GB740542A GB740542A GB1902952A GB1902952A GB740542A GB 740542 A GB740542 A GB 740542A GB 1902952 A GB1902952 A GB 1902952A GB 1902952 A GB1902952 A GB 1902952A GB 740542 A GB740542 A GB 740542A
- Authority
- GB
- United Kingdom
- Prior art keywords
- abrasive
- formaldehyde resin
- mass
- phenol
- cut lengths
- 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
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
Abstract
A grinding or polishing element comprises a mass of cut lengths of fabric or other suitable material, abrasive grains, and a bonding medium, the mass being bonded together to form a solid abrasive element, in which the abrasive grain is substantially evenly dispersed in the bonding medium between the cut lengths, as described in Group V. In examples, corset cuttings coated with abrasive are mixed with tricresyl phosphate and then mixed either with solid phenol-formaldehyde resin, stearic acid, chalk and a wetting-agent or with a liquid phenol-formaldehyde resin; and the mass moulded at 150-170 DEG C. for 5-15 minutes at a pressure of 1,120 lbs. per square inch.ALSO:A grinding or polishing element comprises a mass of cut lengths of fabric or other suitable material, abrasive grains, and a bonding medium, the mass being bonded together to form a solid abrasive element, in which the abrasive grains are substantially evenly dispersed in the bonding medium between the cut lengths. The cut lengths may be of woven or unwoven fibres such as cotton, jute, asbestos, nylon, glass, wood, wool or of phenol-formaldehyde resin bonded glass fibre or of metal. The bonding material may be rubber latex, phenol-formaldehyde resin, unreaformaldehyde resin, alkyd resin or vinyl resins, and fillers such as chalk may also be added. The abrasive material may be sand, emery, garnet, aluminous oxide or silicon carbide. Wetting agents, solvents, and lubricants such as furfural, low viscosity liquid phenol- or cresol-formaldehyde resin, industrial methylated spirits, acetone, water, alcohols, hydrocarbons, camphor, stearates phthalates, may be added to modify the viscosity. The elements in the form of regular or irregular shapes may be regularly or randomly placed, and after pressing they may be fluted or grooved. In examples, corset cuttings coated with abrasive are mixed with tricresyl phosphate and then mixed either with solid phenol-formaldehyde resin, stearic acid, chalk and a wetting agent or with a liquid phenol-formaldehyde resin; and the mass moulded at 150-170 DEG C. for 5-15 minutes at a pressure of 1,120 lbs. per square inch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1902952A GB740542A (en) | 1952-07-28 | 1952-07-28 | Improvements in and relating to grinding wheels, discs and the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1902952A GB740542A (en) | 1952-07-28 | 1952-07-28 | Improvements in and relating to grinding wheels, discs and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB740542A true GB740542A (en) | 1955-11-16 |
Family
ID=10122566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1902952A Expired GB740542A (en) | 1952-07-28 | 1952-07-28 | Improvements in and relating to grinding wheels, discs and the like |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB740542A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2137220A (en) * | 1983-02-14 | 1984-10-03 | Rands Mary | A grinding, honing or abrading body |
| GB2332162B (en) * | 1997-12-12 | 2002-09-18 | Simon Henry Jordan | Grinding disc |
-
1952
- 1952-07-28 GB GB1902952A patent/GB740542A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2137220A (en) * | 1983-02-14 | 1984-10-03 | Rands Mary | A grinding, honing or abrading body |
| GB2332162B (en) * | 1997-12-12 | 2002-09-18 | Simon Henry Jordan | Grinding disc |
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