GB1070234A – Improved method and apparatus for abrading
– Google Patents
GB1070234A – Improved method and apparatus for abrading
– Google Patents
Improved method and apparatus for abrading
Info
Publication number
GB1070234A
GB1070234A
GB1181564A
GB1181564A
GB1070234A
GB 1070234 A
GB1070234 A
GB 1070234A
GB 1181564 A
GB1181564 A
GB 1181564A
GB 1181564 A
GB1181564 A
GB 1181564A
GB 1070234 A
GB1070234 A
GB 1070234A
Authority
GB
United Kingdom
Prior art keywords
chamber
air
enclosure
workpiece
abrasive
Prior art date
1963-02-27
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
Application number
GB1181564A
Inventor
Stewart Ives Ashworth
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.)
Abrasive Developments Ltd
Original Assignee
Abrasive Developments Ltd
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.)
1963-02-27
Filing date
1963-02-27
Publication date
1967-06-01
1963-02-27
Application filed by Abrasive Developments Ltd
filed
Critical
Abrasive Developments Ltd
1963-02-27
Priority to GB1181564A
priority
Critical
patent/GB1070234A/en
1967-06-01
Publication of GB1070234A
publication
Critical
patent/GB1070234A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
B—PERFORMING OPERATIONS; TRANSPORTING
B24—GRINDING; POLISHING
B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
B24C3/00—Abrasive blasting machines or devices; Plants
B24C3/02—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other
B24C3/06—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other movable; portable
B24C3/065—Abrasive blasting machines or devices; Plants characterised by the arrangement of the component assemblies with respect to each other movable; portable with suction means for the abrasive and the waste material
Abstract
1,070,234. Blasting. ABRASIVE DEVELOPMENTS Ltd. Feb. 25, 1964 [Feb. 27, 1963; Nov. 15, 1963], Nos. 11815/64 and 11816/64. Divided out of 1,070,233. Heading B3D. A surface on a workpiece is abraded by forming an enclosure with the surface as a wall thereof, applying suction to the enclosure, inducing the flow of primary air into the enclosure by the removal of the air in the enclosure by suction while restricting the entry of secondary air from the surrounding atmosphere into the enclosure around the periphery of the surface, entraining abrasive in the primary air prior to the latter entering the enclosure, directing the abrasive entering the enclosure against the surface and entraining the spent abrasive in the air being removed from the enclosure by suction. An embodiment (Fig. 1) for abrading the flat surface of a workpiece (12) is identical with the apparatus described in Specification 1,070,233 with reference to Fig. 1 thereof. The seal (13) around the edges of the opening (11) in the portable blasting chamber (10) restricts the entry of air into the chamber from the surrounding atmosphere, either completely (if the seal is a rubber or similar skirt) or incompletely (if the seal is bristles). The pressures used are such that the chamber may be moved over the surface of the workpiece. If the chamber is lifted off the surface of the workpiece the feeding of abrasive to the chamber is automatically cut-off. When the workpiece surface is not plane, the opening and the seals may be shaped to conform to the surface; alternatively or additionally the seals may be sufficiently deformable to conform to the surface. An embodiment, Fig. 2, for abrading the internal surface of a tubular workpiece 50, comprises end members 51, 52 embracing the ends of the workpiece in an air-tight manner and held in position by clamps 53. End member 51 has a nozzle 54 and is connected to the conduit 16 through which air with entrained abrasive is drawn by the suction in the pipe 20 to which the end member 52 is connected. An embodiment (Figs. 3, 4) for abrading the external surface of a cylindrical tube (56) comprises a cylindrical chamber (55) of diameter approximately twice that of the tube. An entry (57) and an exit (58) for the tube are formed in the ends of the chamber and furnished with seals (59, 60). An outlet (61) for connection to suction extends radially from the chamber adjacent the exit. Six radial pipes (62) extend from the chamber adjacent the entry to a circular manifold (63) provided with an inlet for air and entrained abrasive. Mounted in each tube (62) is a nozzle (64) having a main cylindrical portion (65) and a convergent outer portion (66); the inner ends of the nozzles project into the chamber. The workpiece is moved longitudinally through the chamber. In a modification (Figs. 5, 6) pipes (71) with their nozzles are arranged so that the outlets lie upon the path of a helix coaxial with the chamber. Three pipes are connected to a manifold (73) and the other three pipes to a manifold (75), the manifolds being connected to an inlet conduit for air and abrasive.
GB1181564A
1963-02-27
1963-02-27
Improved method and apparatus for abrading
Expired
GB1070234A
(en)
Priority Applications (1)
Application Number
Priority Date
Filing Date
Title
GB1181564A
GB1070234A
(en)
1963-02-27
1963-02-27
Improved method and apparatus for abrading
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
GB1181564A
GB1070234A
(en)
1963-02-27
1963-02-27
Improved method and apparatus for abrading
Publications (1)
Publication Number
Publication Date
GB1070234A
true
GB1070234A
(en)
1967-06-01
Family
ID=9993196
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB1181564A
Expired
GB1070234A
(en)
1963-02-27
1963-02-27
Improved method and apparatus for abrading
Country Status (1)
Country
Link
GB
(1)
GB1070234A
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US5709587A
(en)
*
1996-03-25
1998-01-20
Kennametal Inc.
Method and apparatus for honing an elongate rotary tool
1963
1963-02-27
GB
GB1181564A
patent/GB1070234A/en
not_active
Expired
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US5709587A
(en)
*
1996-03-25
1998-01-20
Kennametal Inc.
Method and apparatus for honing an elongate rotary tool
US5762538A
(en)
*
1996-03-25
1998-06-09
Kennametal Inc.
Method and apparatus for honing an elongate rotary tool
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