GB561688A - Improved digging or excavating tool - Google Patents
Improved digging or excavating toolInfo
- 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
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.
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 (8)
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 |
US12127491B1 (en) | 2024-05-08 | 2024-10-29 | King Saud University | Shovel |
-
1943
- 1943-02-05 GB GB197043A patent/GB561688A/en not_active Expired
Cited By (11)
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 |
US12127491B1 (en) | 2024-05-08 | 2024-10-29 | King Saud University | Shovel |
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