GB384511A - Improvements in or relating to portable electric grinding, drilling and like machines - Google Patents

Improvements in or relating to portable electric grinding, drilling and like machines

Info

Publication number
GB384511A
GB384511A GB8303/32A GB830332A GB384511A GB 384511 A GB384511 A GB 384511A GB 8303/32 A GB8303/32 A GB 8303/32A GB 830332 A GB830332 A GB 830332A GB 384511 A GB384511 A GB 384511A
Authority
GB
United Kingdom
Prior art keywords
support
motor
tool
tool spindle
pulley
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
GB8303/32A
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.)
Robert Bosch AG
Robert Bosch GmbH
Original Assignee
Robert Bosch AG
Robert Bosch GmbH
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 Robert Bosch AG, Robert Bosch GmbH filed Critical Robert Bosch AG
Publication of GB384511A publication Critical patent/GB384511A/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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B45/00—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor
    • B23B45/008—Gear boxes, clutches, bearings, feeding mechanisms or like equipment
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • H02K7/145—Hand-held machine tool
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/44—Filing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/21—Elements
    • Y10T74/2186—Gear casings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Gripping On Spindles (AREA)
  • Drilling And Boring (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

384,511. Motor driving-arrangements. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. March 21, 1932, No. 8303. Convention date, July 27, 1931. [Class 35.] Motors, cooling.-A portable machine having a high speed rotary tool comprises an electric motor 1 which rotates when running light at a speed of from 8000 to 12000 r.p.m. and whose shaft 4 carries a pulley 5 connected by a belt 22 to a pulley 12 on the tool spindle 9 which rotates at a speed of from 30000 to 50000 r.p.m: The pulley 5 serves as a flywheel to compensate for variations of load on the motor and is also provided with a fan 6 to draw air through apertures 19, 20 in the casing 18 and bearing supports 3, 2 respectively and to deliver it around the tool spindle 9, to cool it and blow away swarf from the tool 14. The spindle 9 is carried in elongated roller bearings 13 in a support 8 which is adjustably secured to an extension 7 of the bearing support 2. Adjustment to vary the tension of the belt is effected by a screw 11 and locking by a cap nut 10 screwing on the support 8. The apparatus is enclosed by two covers 17, 18 formed of insulating material, the cover 17 having an extension 21 surrounding the tool spindle 9 and support 8. A handle 15, carrying a controlling switch 16 for the motor, is secured to the support 7 in line with the tool spindle and is provided with a hole to give access to the cap nut 10. The machine may be secured to the slide rest of a lathe and a belt drive to the tool spindle may be provided at both ends of the motor shaft. One end of the motor shaft may be constructed as a holder for a drill, milling-cutter or similar rotary tool and the holes 10 may be covered by wire gauze.
GB8303/32A 1931-07-27 1932-03-21 Improvements in or relating to portable electric grinding, drilling and like machines Expired GB384511A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE163074X 1931-07-27
DE167058X 1932-01-25

Publications (1)

Publication Number Publication Date
GB384511A true GB384511A (en) 1932-12-08

Family

ID=33553277

Family Applications (2)

Application Number Title Priority Date Filing Date
GB8303/32A Expired GB384511A (en) 1931-07-27 1932-03-21 Improvements in or relating to portable electric grinding, drilling and like machines
GB30363/32A Expired GB387982A (en) 1931-07-27 1932-10-29 Improvements in or relating to portable electric grinding, drilling, and like machines

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB30363/32A Expired GB387982A (en) 1931-07-27 1932-10-29 Improvements in or relating to portable electric grinding, drilling, and like machines

Country Status (5)

Country Link
US (1) US1990035A (en)
AT (2) AT135972B (en)
CH (2) CH163074A (en)
FR (1) FR738754A (en)
GB (2) GB384511A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101987426A (en) * 2009-07-14 2011-03-23 杨泰和 Corner-type handheld grinder directly driven by motor
CN107584383A (en) * 2017-10-20 2018-01-16 董艺 A kind of transmission line of electricity handheld power steel tower corner iron sander
CN112207912A (en) * 2020-09-24 2021-01-12 中南林业科技大学 Automatic cutting machine of artificial wooden fiberboard

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE884300C (en) * 1940-12-13 1953-07-27 Karl Hack Spring end grinding machine
US2436540A (en) * 1944-08-31 1948-02-24 Casco Products Corp Hand-held power tool
US2517882A (en) * 1947-08-11 1950-08-08 Johnson Moses Illuminated hand held motor tool
US2700115A (en) * 1950-10-10 1955-01-18 Walt Inc De Air-cooled electric motor
DE1016153B (en) * 1954-10-30 1957-09-19 Duss Maschf Electric hand grinder with fan wheel
US3244031A (en) * 1961-10-31 1966-04-05 Rockwell Mfg Co Power tool improvements
DE1214818B (en) * 1963-04-19 1966-04-21 Helmut Bock Dr Process for refining fats and oils
US3368090A (en) * 1965-05-28 1968-02-06 Chicago Wheel & Mfg Co Portable motor driven power tool
US3718193A (en) * 1971-02-18 1973-02-27 Bosch Gmbh Robert Cooling system for portable impulse transmitting machines
JPH03202283A (en) * 1989-12-28 1991-09-04 Makita Corp Power tool
GB2385017B (en) * 2002-02-08 2005-06-29 Black & Decker Inc Drilling and/or hammering tool
US7552781B2 (en) 2004-10-20 2009-06-30 Black & Decker Inc. Power tool anti-kickback system with rotational rate sensor
EP1674211A1 (en) * 2004-12-23 2006-06-28 BLACK & DECKER INC. Power tool housing
EP1674213B1 (en) * 2004-12-23 2008-10-01 BLACK & DECKER INC. Power tool cooling
US7708505B2 (en) * 2006-10-06 2010-05-04 Black & Decker Inc. Joist drill
US8418778B2 (en) 2010-01-07 2013-04-16 Black & Decker Inc. Power screwdriver having rotary input control
US9266178B2 (en) 2010-01-07 2016-02-23 Black & Decker Inc. Power tool having rotary input control
WO2011085194A1 (en) * 2010-01-07 2011-07-14 Black & Decker Inc. Power screwdriver having rotary input control
US9475180B2 (en) 2010-01-07 2016-10-25 Black & Decker Inc. Power tool having rotary input control
DE102011089719A1 (en) * 2011-12-23 2013-06-27 Robert Bosch Gmbh Electrically operated machine tool
EP2631035B1 (en) 2012-02-24 2019-10-16 Black & Decker Inc. Power tool
US9505119B2 (en) * 2015-02-19 2016-11-29 X'pole Precision Tools Inc. Electric handheld sanding tool providing improved cooling efficiency
US10589413B2 (en) 2016-06-20 2020-03-17 Black & Decker Inc. Power tool with anti-kickback control system
DE102016118766A1 (en) * 2016-10-04 2018-04-05 Wto Vermögensverwaltung Gmbh Drilling-milling device with a device for equalizing the torque and speed of the spindle
CN212947621U (en) 2017-08-07 2021-04-13 米沃奇电动工具公司 Electric tool and electric tool device
WO2020163450A1 (en) 2019-02-06 2020-08-13 Milwaukee Electric Tool Corporation Power tool with shared terminal block
US11212909B2 (en) 2019-11-21 2021-12-28 Milwaukee Electric Tool Corporation Insertable wireless communication device for a power tool

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101987426A (en) * 2009-07-14 2011-03-23 杨泰和 Corner-type handheld grinder directly driven by motor
CN107584383A (en) * 2017-10-20 2018-01-16 董艺 A kind of transmission line of electricity handheld power steel tower corner iron sander
CN112207912A (en) * 2020-09-24 2021-01-12 中南林业科技大学 Automatic cutting machine of artificial wooden fiberboard
CN112207912B (en) * 2020-09-24 2021-11-12 中南林业科技大学 Automatic cutting machine of artificial wooden fiberboard

Also Published As

Publication number Publication date
FR738754A (en) 1932-12-29
GB387982A (en) 1933-02-16
AT138350B (en) 1934-07-25
CH167058A (en) 1934-01-31
CH163074A (en) 1933-07-31
AT135972B (en) 1933-12-27
US1990035A (en) 1935-02-05

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