GB499945A - Improvements in combined surfacing and boring machines - Google Patents

Improvements in combined surfacing and boring machines

Info

Publication number
GB499945A
GB499945A GB2315938A GB2315938A GB499945A GB 499945 A GB499945 A GB 499945A GB 2315938 A GB2315938 A GB 2315938A GB 2315938 A GB2315938 A GB 2315938A GB 499945 A GB499945 A GB 499945A
Authority
GB
United Kingdom
Prior art keywords
racks
scroll plate
slide
facing slide
kearns
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
GB2315938A
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.)
H W KEARNS AND Co Ltd
HENRY WARD LIONEL KEARNS
Original Assignee
H W KEARNS AND Co Ltd
HENRY WARD LIONEL KEARNS
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 H W KEARNS AND Co Ltd, HENRY WARD LIONEL KEARNS filed Critical H W KEARNS AND Co Ltd
Priority to GB2315938A priority Critical patent/GB499945A/en
Publication of GB499945A publication Critical patent/GB499945A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B29/00—Holders for non-rotary cutting tools; Boring bars or boring heads; Accessories for tool holders
    • B23B29/03—Boring heads
    • B23B29/034—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings
    • B23B29/03432—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings radially adjustable during manufacturing
    • B23B29/03467—Boring heads with tools moving radially, e.g. for making chamfers or undercuttings radially adjustable during manufacturing by means of gears and racks
    • B23B29/03471—Boring and facing heads

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)

Abstract

499,945. Rotary tool heads. KEARNS & CO., Ltd., H. W., and KEARNS, H. W. L. Aug. 5, 1938, No. 23159. [Class 83 (iii)] The facing slide c, Fig. 1, of a combined boring and surfacing machine is displaced by means of a spiral face cam or . scroll plate f driving a rack h connected to the slide, through the intermediary of a helical pinion which meshes directly with the spiral face cam. The scroll plate f, Fig. 1, is driven in known manner from differential gearing o, p. The facing slide may be slotted tc provide for the boring bar e, Fig. 2, in which case two racks h are provided on the facing slide, one on each side of the slot, and the helical pinions i are arranged on a common shaft at right-angles to the racks. The pinions may, however, be arranged on separate shafts, radially with respect to the scroll plate and inclined to the racks. In a further arrangement, a single helical pinion meshing with the scroll plate is used, and spur wheels arranged on the shaft of the pinion engage with the racks on the facing slide.
GB2315938A 1938-08-05 1938-08-05 Improvements in combined surfacing and boring machines Expired GB499945A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2315938A GB499945A (en) 1938-08-05 1938-08-05 Improvements in combined surfacing and boring machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2315938A GB499945A (en) 1938-08-05 1938-08-05 Improvements in combined surfacing and boring machines

Publications (1)

Publication Number Publication Date
GB499945A true GB499945A (en) 1939-01-31

Family

ID=10191112

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2315938A Expired GB499945A (en) 1938-08-05 1938-08-05 Improvements in combined surfacing and boring machines

Country Status (1)

Country Link
GB (1) GB499945A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE878747C (en) * 1939-06-07 1953-06-05 Giddings & Lewis Facing attachment for drilling, milling u. like machine tools
US2826928A (en) * 1953-05-08 1958-03-18 H W Kearns & Co Ltd Face plates of horizontal boring and facing machines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE878747C (en) * 1939-06-07 1953-06-05 Giddings & Lewis Facing attachment for drilling, milling u. like machine tools
US2826928A (en) * 1953-05-08 1958-03-18 H W Kearns & Co Ltd Face plates of horizontal boring and facing machines

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