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GB551549A - Improvements in or relating to rifling broach - Google Patents

Improvements in or relating to rifling broach

Info

Publication number
GB551549A
GB551549A GB561941A GB561941A GB551549A GB 551549 A GB551549 A GB 551549A GB 561941 A GB561941 A GB 561941A GB 561941 A GB561941 A GB 561941A GB 551549 A GB551549 A GB 551549A
Authority
GB
United Kingdom
Prior art keywords
teeth
series
produce
broach
grooves
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
GB561941A
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.)
Lapointe Machine Tool Co
Original Assignee
Lapointe Machine Tool 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 Lapointe Machine Tool Co filed Critical Lapointe Machine Tool Co
Priority to GB561941A priority Critical patent/GB551549A/en
Publication of GB551549A publication Critical patent/GB551549A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D43/00Broaching tools
    • B23D43/005Broaching tools for cutting helical grooves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Milling, Broaching, Filing, Reaming, And Others (AREA)

Abstract

551,549. Broaches. LAPOINTE MACHINE TOOL CO., Ltd. (Lapointe Machine Tool Co.). April 30, 1941, No. 5619. [Class 83 (iii)] A rifling broach comprises a series of broaching units A which produce half width grooves extending to full depth and serving to form and mamtain the correct lead in the work, and other broaching units which produce deep cuts at each side of the initial grooves to produce the full groove width. The broach has a shank 10 and follower 20 which fit the internal bore of the work to ensure correct guiding of the broach. The width of teeth in series A decreases from 0.075 inch to 0.072 inch with progressive increase in outside diameter. These teeth produce the grooves 15, Fig. 6, of substantially full depth. The teeth of series B remove layers of stock in the parts 17 by full width teeth of increasing diameter. The teeth in the third series C produce a gradual deepening of the grooves and are slightly narrowed from unit to unit while the teeth of series D are all of the same size and act as finishing teeth.
GB561941A 1941-04-30 1941-04-30 Improvements in or relating to rifling broach Expired GB551549A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB561941A GB551549A (en) 1941-04-30 1941-04-30 Improvements in or relating to rifling broach

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB561941A GB551549A (en) 1941-04-30 1941-04-30 Improvements in or relating to rifling broach

Publications (1)

Publication Number Publication Date
GB551549A true GB551549A (en) 1943-03-01

Family

ID=9799491

Family Applications (1)

Application Number Title Priority Date Filing Date
GB561941A Expired GB551549A (en) 1941-04-30 1941-04-30 Improvements in or relating to rifling broach

Country Status (1)

Country Link
GB (1) GB551549A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20080717A1 (en) * 2008-09-30 2010-04-01 S I B Soc It Brocce Side Ral S R L PERFECT BROCCIA

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20080717A1 (en) * 2008-09-30 2010-04-01 S I B Soc It Brocce Side Ral S R L PERFECT BROCCIA

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