GB561688A - Improved digging or excavating tool - Google Patents

Improved digging or excavating tool

Info

Publication number
GB561688A
GB561688A GB197043A GB197043A GB561688A GB 561688 A GB561688 A GB 561688A GB 197043 A GB197043 A GB 197043A GB 197043 A GB197043 A GB 197043A GB 561688 A GB561688 A GB 561688A
Authority
GB
United Kingdom
Prior art keywords
tool holder
spring
tool
shaft
blow
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
GB197043A
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 GB197043A priority Critical patent/GB561688A/en
Publication of GB561688A publication Critical patent/GB561688A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G3/00—Attaching handles to the implements
    • B25G3/02—Socket, tang, or like fixings

Landscapes

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

Abstract

561,688. Spades &c. MERRIMAN, A. D. Feb. 5, 1943, No. 1970. [Class 61 (i)] A digging or excavating tool, wherein steady pressure upon the handle is converted into an impulsive blow on the tool, comprises a hollow shaft a containing a heavy spring b bearing at the lower end on a movable guide member d in which works the upper part of the tool holder e for the spade &c. f. A cap a<1> at the lower end of the shaft a has a lower extension slotted at i to engage guide pins h on the tool holder e which is held in the forward position by a light spring k and a transverse apertured trip pin l is normally held by a spring m in position blocking the end of the tool holder until after sufficient downward movement of the shaft the cam n disengages the trip pin thus permitting the guide d to move down under the influence of the powerful spring b and deliver a blow on the tool holder.
GB197043A 1943-02-05 1943-02-05 Improved digging or excavating tool Expired GB561688A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB197043A GB561688A (en) 1943-02-05 1943-02-05 Improved digging or excavating tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB197043A GB561688A (en) 1943-02-05 1943-02-05 Improved digging or excavating tool

Publications (1)

Publication Number Publication Date
GB561688A true GB561688A (en) 1944-05-31

Family

ID=9731251

Family Applications (1)

Application Number Title Priority Date Filing Date
GB197043A Expired GB561688A (en) 1943-02-05 1943-02-05 Improved digging or excavating tool

Country Status (1)

Country Link
GB (1) GB561688A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4691954A (en) * 1986-08-15 1987-09-08 Shaud Ronald J Snow shovel
US5309654A (en) * 1993-04-15 1994-05-10 Mathis Johnny L Snow and ice broom
WO1997039858A1 (en) * 1996-04-19 1997-10-30 Nor-Easter Enterprises, Inc. Shock-absorbing tool handle
US6367854B1 (en) * 2000-02-29 2002-04-09 Chou Hwei-Rung Handle device of an impact hand tool
DE102005016445B4 (en) * 2005-04-04 2008-12-18 Jochen Reuter Hand Tool Pulse Generator System and Pulse Generator Intermediate Piece
WO2010122539A1 (en) * 2009-04-22 2010-10-28 Easy Tool Limited An impact tool
US10226860B2 (en) * 2016-03-25 2019-03-12 Sean Rampton Enhanced action hand tool system

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4691954A (en) * 1986-08-15 1987-09-08 Shaud Ronald J Snow shovel
US5309654A (en) * 1993-04-15 1994-05-10 Mathis Johnny L Snow and ice broom
WO1997039858A1 (en) * 1996-04-19 1997-10-30 Nor-Easter Enterprises, Inc. Shock-absorbing tool handle
US6367854B1 (en) * 2000-02-29 2002-04-09 Chou Hwei-Rung Handle device of an impact hand tool
DE102005016445B4 (en) * 2005-04-04 2008-12-18 Jochen Reuter Hand Tool Pulse Generator System and Pulse Generator Intermediate Piece
WO2010122539A1 (en) * 2009-04-22 2010-10-28 Easy Tool Limited An impact tool
CN102802398A (en) * 2009-04-22 2012-11-28 简单工具有限公司 An impact tool
US9198337B2 (en) 2009-04-22 2015-12-01 Easy Tool Limited Impact tool
CN102802398B (en) * 2009-04-22 2016-01-06 简单工具有限公司 Percussion tool
US10226860B2 (en) * 2016-03-25 2019-03-12 Sean Rampton Enhanced action hand tool system

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