GB203763A - Improvements in and relating to internal combustion engine and the like valve and valve seat turning trueing or the like devices - Google Patents

Improvements in and relating to internal combustion engine and the like valve and valve seat turning trueing or the like devices

Info

Publication number
GB203763A
GB203763A GB1612522A GB1612522A GB203763A GB 203763 A GB203763 A GB 203763A GB 1612522 A GB1612522 A GB 1612522A GB 1612522 A GB1612522 A GB 1612522A GB 203763 A GB203763 A GB 203763A
Authority
GB
United Kingdom
Prior art keywords
valve
cutter
bearing
trueing
tool
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
GB1612522A
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.)
GEORGE HERBERT CAVE
Original Assignee
GEORGE HERBERT CAVE
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 GEORGE HERBERT CAVE filed Critical GEORGE HERBERT CAVE
Priority to GB1612522A priority Critical patent/GB203763A/en
Publication of GB203763A publication Critical patent/GB203763A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C3/00—Milling particular work; Special milling operations; Machines therefor
    • B23C3/02—Milling surfaces of revolution
    • B23C3/05—Finishing valves or valve seats

Landscapes

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

Abstract

203,763. Cave, G. H. June 10, 1922. Portable turning-apparatus; cutters and cutterbars.-A rotary toothed cutter for trueing valve faces and seatings, for example, those of internalcombustion engines, has two operative faces B', B<2>, which respectively make complementary angles with the axis of the tool, one face serving to true the valve, and the other to true the seating. When used for trueing the seating, the cutter is mounted on a spindle tapped at one end to receive an extension, which is inserted in the valve stem guide hole, and at the other end to receive bars serving to rotate the cutter; the cutter may have flats on its sides to enable it to be inserted in the valve box. As applied to trueing the face of a valve, the tool is secured in a screwed spindle J rotatably mounted, and axially adjustable, in a bearing E<1> on a base F. The valve V is mounted in a bearing on the base with its axis in the same plane as, and perpendicular to, that of the cutter. The valve is pressed against the cutter by a screw L carried by a block E<2> on the base; a ball bearing L<2> may be employed to transmit pressure to the valve, which is rotated during trueing. The bearing E may be provided with a liner O to carry the valve stem, a spring N and thrust ball bearing M being interposed between the valve head and the bearing to prevent chattering. The liner may be replaced by a chuck which holds the valve stem, the chuck being secured to a sleeve running in the bearing E and carrying a bevel-wheel. The spindle J also is carried in a sleeve which is rotatable in the bearing E' and has thereon a bevel-wheel driven by the bevel-wheel on the sleeve carrying the valve. The Provisional Specification describes also the use of a grinding-tool in place of the cutter, and the cutter or grinding tool may be non-rotary when used for trueing the valve face. Specification 167,210 is referred to.
GB1612522A 1922-06-10 1922-06-10 Improvements in and relating to internal combustion engine and the like valve and valve seat turning trueing or the like devices Expired GB203763A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1612522A GB203763A (en) 1922-06-10 1922-06-10 Improvements in and relating to internal combustion engine and the like valve and valve seat turning trueing or the like devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1612522A GB203763A (en) 1922-06-10 1922-06-10 Improvements in and relating to internal combustion engine and the like valve and valve seat turning trueing or the like devices

Publications (1)

Publication Number Publication Date
GB203763A true GB203763A (en) 1923-09-10

Family

ID=10071626

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1612522A Expired GB203763A (en) 1922-06-10 1922-06-10 Improvements in and relating to internal combustion engine and the like valve and valve seat turning trueing or the like devices

Country Status (1)

Country Link
GB (1) GB203763A (en)

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