GB103933A - Improvements in or relating to Chasing Bar Lathes. - Google Patents

Improvements in or relating to Chasing Bar Lathes.

Info

Publication number
GB103933A
GB103933A GB809216A GB809216A GB103933A GB 103933 A GB103933 A GB 103933A GB 809216 A GB809216 A GB 809216A GB 809216 A GB809216 A GB 809216A GB 103933 A GB103933 A GB 103933A
Authority
GB
United Kingdom
Prior art keywords
arm
bar
tool
carrying
bolt
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
GB809216A
Inventor
Frederick William Portass
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 GB809216A priority Critical patent/GB103933A/en
Publication of GB103933A publication Critical patent/GB103933A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G1/00—Thread cutting; Automatic machines specially designed therefor
    • B23G1/02—Thread cutting; Automatic machines specially designed therefor on an external or internal cylindrical or conical surface, e.g. on recesses

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Multi-Process Working Machines And Systems (AREA)

Abstract

103,933. Portass, F. W. June 8, 1916. Lathes.-A brass-finishers' lathe has the sliding and working bar carrying the tool-rests provided with two arms carrying tool-posts or turrets and so arranged that, when either arm is in operative position, the other is clear of the work. In the construction shown in Figs. 1 and 2, one arm 9 is rigidly attached to the bar 1, and the other 10 is adjustable as controlled by a bolt 16 and spring 17 and studs and slots 18. When the arm 10 is in operative position, the nut 4 engages the leadscrew 5. Instead of adjusting the cut by the bolt 16, the nut section may be adjustably mounted on its arm. When the arm 9 is in operation, the bar 1 is fed by hand or by a screw 15, or by means such as a cam. A slide 23, constrained by lugs to travel with the bar 1, is interposed between a screw 12, carried by a third arm on the bar, and a copying-bar 13. More than two tool-carrying arms may be provided on the bars.
GB809216A 1916-06-08 1916-06-08 Improvements in or relating to Chasing Bar Lathes. Expired GB103933A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB809216A GB103933A (en) 1916-06-08 1916-06-08 Improvements in or relating to Chasing Bar Lathes.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB809216A GB103933A (en) 1916-06-08 1916-06-08 Improvements in or relating to Chasing Bar Lathes.

Publications (1)

Publication Number Publication Date
GB103933A true GB103933A (en) 1917-02-15

Family

ID=32246738

Family Applications (1)

Application Number Title Priority Date Filing Date
GB809216A Expired GB103933A (en) 1916-06-08 1916-06-08 Improvements in or relating to Chasing Bar Lathes.

Country Status (1)

Country Link
GB (1) GB103933A (en)

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