GB415951A - Valve seat grinding tool - Google Patents

Valve seat grinding tool

Info

Publication number
GB415951A
GB415951A GB3472/34A GB347234A GB415951A GB 415951 A GB415951 A GB 415951A GB 3472/34 A GB3472/34 A GB 3472/34A GB 347234 A GB347234 A GB 347234A GB 415951 A GB415951 A GB 415951A
Authority
GB
United Kingdom
Prior art keywords
shaft
secured
sleeve
ring
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
GB3472/34A
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.)
Black and Decker Corp
Original Assignee
Black and Decker 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 Black and Decker Manufacturing Co filed Critical Black and Decker Manufacturing Co
Publication of GB415951A publication Critical patent/GB415951A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B15/00Machines or devices designed for grinding seat surfaces; Accessories therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Abstract

415,951. Grinding valve seats. BLACK & DECKER MANUFACTURING CO., Towson, Maryland, U.S.A. Feb. 2, 1934, No. 3472. Convention date, May 5, 1933. [Class 60.] In a power-operated tool for grinding valve seats the spindle connecting the grinding wheel to the actuating means is vibrated in the direction of its axis, so as to lift the wheel from the work, at intervals which are indefinitely and variably timed in relation to the speed of rotation. In the tool shown, a portable hand tool 1 houses an electric motor 4 the shaft 6 of which is recessed at the end to receive telescopically the upper end 17 of a shaft 15, which it drives by a slot and tongue connection 14, 18. A spring 13 tends to force the shaft 15 downwardly, the thrust being taken by a pair of tapered cam rings 21, 22, between which are balls 24 or other antifriction devices. The cam rings are free to rotate on the shaft 15, so that the frictional effects produce irregular rotation of one with respect to the other, causing the desired irregular axial vibration of the shaft 15. Alternatively, either the ring 21 may be secured to the shaft 15, or the ring 22 may be secured to the casing, in each case the other ring being free to rotate. The shaft or sleeve 34 carrying the grinding wheel is connected to the shaft 15 by a universal joint formed by a cup 33 of hexagonal section in which engages a ball member 30 of similar section at the lower end of the shaft 15, the friction at this joint being sufficient to impart the axial vibratory movements of the shaft 15 to the sleeve 34. The sleeve 34 is provided with cooling fins 36, and it is steadied by a pilot spindle 27 secured in the valve guide.
GB3472/34A 1933-05-05 1934-02-02 Valve seat grinding tool Expired GB415951A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US669533A US2056483A (en) 1933-05-05 1933-05-05 Valve seat grinding tool

Publications (1)

Publication Number Publication Date
GB415951A true GB415951A (en) 1934-09-06

Family

ID=24686681

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3472/34A Expired GB415951A (en) 1933-05-05 1934-02-02 Valve seat grinding tool

Country Status (4)

Country Link
US (1) US2056483A (en)
DE (1) DE653050C (en)
FR (1) FR769704A (en)
GB (1) GB415951A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE938593C (en) * 1941-08-12 1956-02-02 Matra Werke Gmbh Drive for valve seat grinding machines
DE1023947B (en) * 1951-06-18 1958-02-06 Lewis John Howell Ballinger Drive device for rotating disk-shaped cutting tools
CN103100961A (en) * 2012-12-31 2013-05-15 苏州维赛克阀门检测技术有限公司 Mechanical nozzle grinding device

Also Published As

Publication number Publication date
FR769704A (en) 1934-08-31
DE653050C (en) 1937-11-15
US2056483A (en) 1936-10-06

Similar Documents

Publication Publication Date Title
GB421108A (en) Improvements in and relating to means for dynamically balancing machines
GB415951A (en) Valve seat grinding tool
US2328542A (en) Metalworking machine
US3041893A (en) Ball-bearing reversing tapping attachment
US2176928A (en) Screw driver and nut runner overload release
GB830332A (en) Improvements in or relating to screw thread cutting devices
GB748091A (en) Improvements in reversible rotary tool holders for screw thread cutting tools
GB964494A (en) Torque transmitting connecting mechanism
US2646669A (en) Universal joint
US1370964A (en) Grinding-machine
US2262075A (en) Valve seat grinding stone, sleeve, and pilot
US2229951A (en) Hand tool
US1431830A (en) Coupling
US2390582A (en) Belt drive reversing unit
GB609973A (en) Improvements in screw-thread-cutting devices
US1229414A (en) Floating spindle-bearing.
GB318623A (en) Improvements in or relating to a portable machine having a selfcontained motor for boring, drilling, milling, screwing up nuts and like operations
US2338763A (en) Portable grinding machine
GB574041A (en) Improvements in valve seat grinding tools
US2022355A (en) Discriminating clamp actuating mechanism
SU58780A1 (en) Tool for communicating the spindle with the axial reciprocating grinding wheel
GB265129A (en) Improved driving system for centrifugal apparatus used in the manufacture of artificial silk and the like
GB386049A (en) Improvements in and relating to drilling machines
GB134813A (en)
GB409702A (en) A machine for grinding the valves of automobile engines and the like