GB127471A - New or Improved Threading Attachment for Automatic Screw Cutting Machines. - Google Patents

New or Improved Threading Attachment for Automatic Screw Cutting Machines.

Info

Publication number
GB127471A
GB127471A GB1358618A GB1358618A GB127471A GB 127471 A GB127471 A GB 127471A GB 1358618 A GB1358618 A GB 1358618A GB 1358618 A GB1358618 A GB 1358618A GB 127471 A GB127471 A GB 127471A
Authority
GB
United Kingdom
Prior art keywords
cutter
arm
cutting machines
cam
new
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
GB1358618A
Inventor
William Henry Broughton
Ralph Bradbury
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1358618A priority Critical patent/GB127471A/en
Publication of GB127471A publication Critical patent/GB127471A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B11/00—Automatic or semi-automatic turning-machines incorporating equipment for performing other working procedures, e.g. slotting, milling, rolling

Abstract

127,471. Broughton, W. H., and Bradbury, R. Aug. 21, 1918. Attachments for turning; turning wood-screws. -Multiple screw-cutting machines, in which both blank and cutter are rotated, have the transverse feed of the cutter p effected by a stationary cam u engaging a projection r on the cutter bracket n as it is traversed. The traverse is obtained from cams &c. acting through a slide k and an arm h sliding freely on the worm-shaft e which drives the cutter p. The bracket n is also free on the worm and can turn relatively to the arm h by which it is reciprocated axially. The cam u has a pivoted end piece v which moves the arm r down against the action of a spring s, thus bringing the cutter into contact with the work; but, on the return, the arm r passes above the cam, the end v being free to move out of the way. but returning by reason of its spring w, Fig. 4.
GB1358618A 1918-08-21 1918-08-21 New or Improved Threading Attachment for Automatic Screw Cutting Machines. Expired GB127471A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1358618A GB127471A (en) 1918-08-21 1918-08-21 New or Improved Threading Attachment for Automatic Screw Cutting Machines.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1358618A GB127471A (en) 1918-08-21 1918-08-21 New or Improved Threading Attachment for Automatic Screw Cutting Machines.

Publications (1)

Publication Number Publication Date
GB127471A true GB127471A (en) 1919-06-05

Family

ID=32346080

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1358618A Expired GB127471A (en) 1918-08-21 1918-08-21 New or Improved Threading Attachment for Automatic Screw Cutting Machines.

Country Status (1)

Country Link
GB (1) GB127471A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2351749A1 (en) * 1976-05-22 1977-12-16 Gildemeister Ag DEVICE FOR CUTTING INTERNAL AND EXTERNAL THREADS ON MULTI-SPINDLE AUTOMATIC LATHES

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2351749A1 (en) * 1976-05-22 1977-12-16 Gildemeister Ag DEVICE FOR CUTTING INTERNAL AND EXTERNAL THREADS ON MULTI-SPINDLE AUTOMATIC LATHES

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