GB769234A - Expanding reamer - Google Patents

Expanding reamer

Info

Publication number
GB769234A
GB769234A GB2875/55A GB287555A GB769234A GB 769234 A GB769234 A GB 769234A GB 2875/55 A GB2875/55 A GB 2875/55A GB 287555 A GB287555 A GB 287555A GB 769234 A GB769234 A GB 769234A
Authority
GB
United Kingdom
Prior art keywords
blades
expanding
weaken
holes
plug
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
GB2875/55A
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.)
Merz A G
Original Assignee
Merz A G
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 Merz A G filed Critical Merz A G
Publication of GB769234A publication Critical patent/GB769234A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D77/00—Reaming tools
    • B23D77/06—Reaming with means for compensating wear
    • B23D77/10—Reaming with means for compensating wear by expanding a tube-like non-slotted part of the tool body

Landscapes

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

Abstract

769,234. Reamers. MERZ AKT.-GES. Jan. 31, 1955 [Feb. 8, 1954; Nov. 30, 1954], No. 2875/55. Class 83 (3). An expanding-reamer comprises a sleeve-like body 1a supporting the blades 4 and having longitudinal slits 2 which do not extend to the end of the body, and means 10 for expanding the body through engagement with it in an endzone of the blades. Conical expanding-surfaces 11, 12 of the same or different slopes may be provided on the plug 10 for each end of the axial or helical blades 4, and are assisted in their action by recesses 8, and preferably also by bores 15 which weaken the body. The body may be a separate component secured on the Morse-taper shank 1 by the expanding plug. Holes 30, Fig. 3, may be provided substantially beneath or between the blades to weaken the unslit part 5 of the body, and the slits arranged beneath or between the blades 4. Instead of holes 30, or in addition to them, radial or axial notches (not shown) may weaken the part 5. In Fig. 4, the body is additionally weakened between the ends of the blades, which may be tipped with carbide &c., and the unslit part 26 of the body.
GB2875/55A 1954-02-08 1955-01-31 Expanding reamer Expired GB769234A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH769234X 1954-02-08

Publications (1)

Publication Number Publication Date
GB769234A true GB769234A (en) 1957-03-06

Family

ID=4535262

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2875/55A Expired GB769234A (en) 1954-02-08 1955-01-31 Expanding reamer

Country Status (5)

Country Link
BE (1) BE535405A (en)
CH (2) CH329115A (en)
DE (1) DE1158791B (en)
FR (1) FR1118964A (en)
GB (1) GB769234A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2328388A (en) * 1997-08-19 1999-02-24 Invotec Limited A reaming device for rock climbing

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3569897D1 (en) * 1985-09-16 1989-06-08 Dihart Ag Reamer with cooling provision
DE102009042951B3 (en) * 2009-09-24 2011-03-03 Hans Langesee Ges.M.B.H. Reamer and its use

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR397377A (en) * 1908-12-14 1909-05-06 Ludw Loewe & C Actiengesellsch Expandable reamer
US1428391A (en) * 1921-05-27 1922-09-05 Buckeye Twist Drill Company Expansion reamer
GB256996A (en) * 1925-03-18 1926-08-18 Millersburg Reamer & Tool Comp Method of making a helical expansible reamer from solid stock
US1730231A (en) * 1927-04-22 1929-10-01 Joseph P Nestor Expansible reamer
US1852690A (en) * 1930-02-14 1932-04-05 Lawrence O Beard Reamer
DE901489C (en) * 1943-11-26 1954-01-11 Mahr Carl Adjustable reamer
DE910020C (en) * 1944-06-13 1954-04-26 Rudolf Spieth Cutting tool
CH281242A (en) * 1945-06-13 1952-02-29 Steam Torch Corp Process for superheating steam, and superheated steam generator device for implementing this process.
DE822462C (en) * 1950-02-21 1951-11-26 Ludwig Gack Fastening of the knife firmly inserted into the circumference of the base body of reamers in longitudinal grooves

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2328388A (en) * 1997-08-19 1999-02-24 Invotec Limited A reaming device for rock climbing

Also Published As

Publication number Publication date
CH329115A (en) 1958-04-15
FR1118964A (en) 1956-06-13
DE1158791B (en) 1963-12-05
CH341699A (en) 1959-10-15
BE535405A (en)

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