GB389144A - Improvements in or relating to pneumatic percussive tools - Google Patents

Improvements in or relating to pneumatic percussive tools

Info

Publication number
GB389144A
GB389144A GB25580/31A GB2558031A GB389144A GB 389144 A GB389144 A GB 389144A GB 25580/31 A GB25580/31 A GB 25580/31A GB 2558031 A GB2558031 A GB 2558031A GB 389144 A GB389144 A GB 389144A
Authority
GB
United Kingdom
Prior art keywords
tool head
collar
pivoted
meudon
relating
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
GB25580/31A
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.)
Forges & Ateliers De Meudon
Original Assignee
Forges & Ateliers De Meudon
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 Forges & Ateliers De Meudon filed Critical Forges & Ateliers De Meudon
Publication of GB389144A publication Critical patent/GB389144A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/08—Means for retaining and guiding the tool bit, e.g. chucks allowing axial oscillation of the tool bit

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)

Abstract

389,144. Percussive drills. FORGES ET ATELIERS DE MEUDON, 175, Avenue de Verdun, Meudon, Seine-et-Oise, France. Sept. 11, 1931, No. 25580. Convention date, Nov. 26, 1930. [Class 124.] The drill steel 1 is retained in the tool head by a collar 4 which is loosely pivoted to the tool head by a lug engaging the eye 10 of the bolt 11. The inclination of the collar causes it to grip the tool shank. In a modification, the collar is rigidly pivoted to the tool head, and is pressed forward by a spring. The Specification as open to inspection under Sect. 91 comprises also a retaining device consisting of wedges 4c, 4d, Fig. 6 (Cancelled), enclosed in the tool head 3. In another modification, the steel was gripped by cams pivoted to the tool head. This subject-matter does not appear in the Specification as accepted.
GB25580/31A 1930-11-26 1931-09-11 Improvements in or relating to pneumatic percussive tools Expired GB389144A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR389144X 1930-11-26

Publications (1)

Publication Number Publication Date
GB389144A true GB389144A (en) 1933-03-13

Family

ID=8895944

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25580/31A Expired GB389144A (en) 1930-11-26 1931-09-11 Improvements in or relating to pneumatic percussive tools

Country Status (1)

Country Link
GB (1) GB389144A (en)

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