GB1240391A - Improvements in or relating to hand grinding machines - Google Patents

Improvements in or relating to hand grinding machines

Info

Publication number
GB1240391A
GB1240391A GB7897/69A GB789769A GB1240391A GB 1240391 A GB1240391 A GB 1240391A GB 7897/69 A GB7897/69 A GB 7897/69A GB 789769 A GB789769 A GB 789769A GB 1240391 A GB1240391 A GB 1240391A
Authority
GB
United Kingdom
Prior art keywords
motor
chamber
air
grinding wheel
grinding
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
Application number
GB7897/69A
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.)
SNA Europe Industries AB
Original Assignee
Bahco AB
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.)
Filing date
Publication date
Application filed by Bahco AB filed Critical Bahco AB
Publication of GB1240391A publication Critical patent/GB1240391A/en
Expired legal-status Critical Current

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
    • 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
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • B24B23/026—Fluid driven

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)

Abstract

1,240,391. Grinding. BAHCO A.B. 13 Feb., 1969 [20 Feb., 1968], No. 7897/69. Heading B3D. [Also in Division F1] A hand grinding machine comprises a motor 1 driven by air under pressure and a grinding wheel 5 rotated by the motor and partly surrounded about its periphery by a dust shield 7, the dust shield consisting of outer and inner walls 8, 9 which between them form a chamber 10 connected by one or more supply passages to the air outlet of the motor, and having one or more outlet openings stiuated at the periphery of the grinding wheel and serving to direct outgoing air away from the motor side of the machine substantially parallel to the axis of rotation of the grinding wheel, whereby air leaving the motor is led away via the chamber. The provision of the chamber 10 is stated to reduce noise. Air exhausting from the motor flows through the space 2 between the shaft 3 and casing 4 and then through an opening 11 in the casing 4 and in a connector 12 into the chamber 10. The axially extending part of the inner wall 9 is corrugated to form with the axially extending part of the outer wall 8 outlet passages 14; alternatively a continuous gap extends between the parts.
GB7897/69A 1968-02-20 1969-02-13 Improvements in or relating to hand grinding machines Expired GB1240391A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2217/68A SE321422B (en) 1968-02-20 1968-02-20

Publications (1)

Publication Number Publication Date
GB1240391A true GB1240391A (en) 1971-07-21

Family

ID=20259571

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7897/69A Expired GB1240391A (en) 1968-02-20 1969-02-13 Improvements in or relating to hand grinding machines

Country Status (6)

Country Link
US (1) US3591989A (en)
DE (1) DE1904220A1 (en)
FR (1) FR2002217A1 (en)
GB (1) GB1240391A (en)
NL (1) NL6902136A (en)
SE (1) SE321422B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5065080U (en) * 1973-10-17 1975-06-12

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3969856A (en) * 1973-09-25 1976-07-20 Andreas Stihl Maschinenfabrik Adjustable protective hood for a rotary tool
JPS5215829B2 (en) * 1973-10-13 1977-05-04
US4262452A (en) * 1978-11-24 1981-04-21 Lopez Francisco R Disc brake grinding apparatus and method
US4319433A (en) * 1979-09-24 1982-03-16 Maremont Corporation Tool for cutting automotive components
US4909292A (en) * 1989-03-20 1990-03-20 Wirth Jr John Boring, mortising, tenoning and duplicating woodworking machine
US5597349A (en) * 1994-10-13 1997-01-28 Everlast Products Inc. Rotary stripper and shield
SE511335C2 (en) 1997-03-10 1999-09-13 Atlas Copco Tools Ab Rotary motor tool with extended output shaft
US6588468B1 (en) * 1999-06-18 2003-07-08 Lee Valley Tools Ltd. Router table joint making machine
US20040154168A1 (en) * 2003-02-07 2004-08-12 Mcdonald Jon Anthony Dust and debris shield for powered hand tool
DE102004047278A1 (en) * 2004-09-29 2006-04-06 Hilti Ag Covering device for a tool device
DE102005009854A1 (en) * 2005-02-03 2006-08-17 Monti-Werkzeuge Gmbh rotary tool
DE102005000018A1 (en) * 2005-03-07 2006-09-14 Hilti Ag header
SE529325C2 (en) * 2005-11-24 2007-07-03 Atlas Copco Tools Ab Portable grinding machine with support for a grinding wheel cover and an extra handle
DE102007046311A1 (en) * 2007-09-27 2009-04-02 Robert Bosch Gmbh guard
JP5297392B2 (en) * 2009-07-06 2013-09-25 株式会社マキタ Thunder
US8303380B2 (en) 2010-01-26 2012-11-06 Dynabrade, Inc. Abrading device having a front exhaust
CN102615569B (en) * 2012-04-28 2014-03-26 东山电器（珠海）有限公司 High-speed grinding machine
EP3421173B8 (en) * 2017-06-27 2022-08-17 X'Pole Precision Tools Inc. Grinding machine
CN116100443A (en) * 2022-12-07 2023-05-12 许春雷 Special grinder with protective structure for grooving pre-operation demonstration scribing and protective method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2452268A (en) * 1945-06-29 1948-10-26 Schumann Robert Motor hand tool assembly
US2462710A (en) * 1946-05-30 1949-02-22 Ballinger Lewis John Howell Abrasive wheel guard

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5065080U (en) * 1973-10-17 1975-06-12

Also Published As

Publication number Publication date
NL6902136A (en) 1969-08-22
FR2002217A1 (en) 1969-10-17
DE1904220A1 (en) 1969-12-18
US3591989A (en) 1971-07-13
SE321422B (en) 1970-03-02

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