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GB735058A - Improvements in rock-drills - Google Patents

Improvements in rock-drills

Info

Publication number
GB735058A
GB735058A GB22043/52A GB2204352A GB735058A GB 735058 A GB735058 A GB 735058A GB 22043/52 A GB22043/52 A GB 22043/52A GB 2204352 A GB2204352 A GB 2204352A GB 735058 A GB735058 A GB 735058A
Authority
GB
United Kingdom
Prior art keywords
drill
sept
handle
plate
rock
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
GB22043/52A
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB735058A publication Critical patent/GB735058A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/006—Vibration damping means
    • 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
    • B25D17/04—Handles; Handle mountings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

735,058. Portable drilling machines. BOSCH GES., R. Sept. 2, 1952 [Sept. 3, 1951], No. 22043/52. Class 83 (3). [Also in Group XXIII] A rock drill has all parts necessarily held by, or coming into contact with, an operator during working, rendered incapable of conducting heat from the body of the drill to the operator, at least one of the parts being thermally insulated with respect to the body of the drill by a material not suited to damping vibrations. An electrically-driven rock drill has a handle 6 and a breast-plate 4 coated with a hard rubber or other thermally-insulating, non-resilient material and a handle 8, carrying the starting switch 10, 11, and thermally insulated from the body of the drill by a plate 9.
GB22043/52A 1951-09-03 1952-09-02 Improvements in rock-drills Expired GB735058A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE735058X 1951-09-03

Publications (1)

Publication Number Publication Date
GB735058A true GB735058A (en) 1955-08-10

Family

ID=6642031

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22043/52A Expired GB735058A (en) 1951-09-03 1952-09-02 Improvements in rock-drills

Country Status (1)

Country Link
GB (1) GB735058A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2790215A1 (en) * 1999-02-25 2000-09-01 Pierre Bourgogne Safety equipment for portable electrical appliances such as powered hand drills, comprises of an elongated handle assembly and an integral circuit breaker assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2790215A1 (en) * 1999-02-25 2000-09-01 Pierre Bourgogne Safety equipment for portable electrical appliances such as powered hand drills, comprises of an elongated handle assembly and an integral circuit breaker assembly

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