GB407186A - Improvements in valve seat grinding tools - Google Patents

Improvements in valve seat grinding tools

Info

Publication number
GB407186A
GB407186A GB607433A GB607433A GB407186A GB 407186 A GB407186 A GB 407186A GB 607433 A GB607433 A GB 607433A GB 607433 A GB607433 A GB 607433A GB 407186 A GB407186 A GB 407186A
Authority
GB
United Kingdom
Prior art keywords
grinding
spindle
wheel
valve
motor
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
GB607433A
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.)
HALL Manufacturing CO
Original Assignee
HALL Manufacturing CO
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 HALL Manufacturing CO filed Critical HALL Manufacturing CO
Priority to GB607433A priority Critical patent/GB407186A/en
Publication of GB407186A publication Critical patent/GB407186A/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
    • B24B15/00—Machines or devices designed for grinding seat surfaces; Accessories therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)

Abstract

407,186. Grinding valve-seats. JOHNSON, G. W., 47, Lincoln's Inn Fields, London.- (Hall Manufacturing Co. ; Toledo, Ohio, U.S.A.) Feb. 28, 1933, No. 6074. [Class 60.] A valve-seat grinding tool particularly for grinding the valve seats of internal-combustion engines is fitted with a pilot stem 10, Fig. 1, adapted to engage in the valve-guide, and the rotary grinding-wheel spindle 12 is driven from an electric motor 23 mounted eccentrically of the grinding spindle in a housing 25 rigid with and forming part of the tool. The stem 10 may be centred and secured in the valve guide by an upper tapered member coacting with a tapered nut threaded on the lower end of the stem. The grinding-spindle 12 carries a wheel 14 and encloses an inner shaft 11 which is eccentrically bored to receive the upper end of the pilot stem so that the grinding-wheel is eccentric to the axis of the pilot. The grinding-spindle is driven at high speed from the motor spindle 16 through gears 17, 18, and the shaft 11 is slowly rotated to give the wheel a planetary motion round the seating by worm gearing 19 shaft 20 and further worm gearing 21. The motor housing is secured by bolts 26 to the grinding-spindle housing 13 and a fan 24 is mounted on the shaft 16 for cooling the motor. The grinding pressure is regulated by a gauge rod 29 engaging the upper end of the pilot stem and secured to a screwed sleeve 30 threading on to a member 31. A handlever 32 extending from the tool housing engages a vertical spring pressed rod 33 so that the overhanging weight of the motor may be counterbalanced by the operator. In a modification, Fig. 2, the grinding-spindle 33<a> is eccentrically mounted with respect to the pilot stem 10<a> and is driven from the motor 38 through gears 35, 36. The pilot is mounted in a member 39 which may be rotated in the housing 34<a> to vary the offset of the grinding- wheel. A screw 42 adjusts the position of the tool, which is turned by hand to cause the grinding-wheel to travel around the valve seat.
GB607433A 1933-02-28 1933-02-28 Improvements in valve seat grinding tools Expired GB407186A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB607433A GB407186A (en) 1933-02-28 1933-02-28 Improvements in valve seat grinding tools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB607433A GB407186A (en) 1933-02-28 1933-02-28 Improvements in valve seat grinding tools

Publications (1)

Publication Number Publication Date
GB407186A true GB407186A (en) 1934-03-15

Family

ID=9807914

Family Applications (1)

Application Number Title Priority Date Filing Date
GB607433A Expired GB407186A (en) 1933-02-28 1933-02-28 Improvements in valve seat grinding tools

Country Status (1)

Country Link
GB (1) GB407186A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2209980A (en) * 1987-09-18 1989-06-01 Silk Engineering Portable machine tool
EP0334379A2 (en) * 1988-03-24 1989-09-27 L. &amp; C. Steinmüller GmbH Transportable cutting device with internal clamping
US5259144A (en) * 1992-08-17 1993-11-09 Yeh Wen An Planetary-type lapping device for finish-grinding the valve seat of a safety relief valve
CN114888713A (en) * 2022-05-20 2022-08-12 浙江合达铝业有限公司 Diesel engine end cover gas hole seat face grinding mechanism

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2209980A (en) * 1987-09-18 1989-06-01 Silk Engineering Portable machine tool
US4923343A (en) * 1987-09-18 1990-05-08 Silk Engineering (Derby) Limited Machine tool
GB2209980B (en) * 1987-09-18 1992-06-03 Silk Engineering A portable machine tool
EP0334379A2 (en) * 1988-03-24 1989-09-27 L. &amp; C. Steinmüller GmbH Transportable cutting device with internal clamping
EP0334379A3 (en) * 1988-03-24 1990-11-14 L. &amp; C. Steinmüller GmbH Transportable cutting device with internal clamping
US5259144A (en) * 1992-08-17 1993-11-09 Yeh Wen An Planetary-type lapping device for finish-grinding the valve seat of a safety relief valve
CN114888713A (en) * 2022-05-20 2022-08-12 浙江合达铝业有限公司 Diesel engine end cover gas hole seat face grinding mechanism
CN114888713B (en) * 2022-05-20 2023-09-05 浙江合达铝业有限公司 Grinding mechanism for air hole seat surface of end cover of diesel engine

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