CA2050763A1 - Perma tip safety wedge - Google Patents
Perma tip safety wedgeInfo
- Publication number
- CA2050763A1 CA2050763A1 CA 2050763 CA2050763A CA2050763A1 CA 2050763 A1 CA2050763 A1 CA 2050763A1 CA 2050763 CA2050763 CA 2050763 CA 2050763 A CA2050763 A CA 2050763A CA 2050763 A1 CA2050763 A1 CA 2050763A1
- Authority
- CA
- Canada
- Prior art keywords
- wedge
- plastic
- steel
- wedges
- sheath
- 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.)
- Abandoned
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- 239000002023 wood Substances 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims abstract 2
- 229910001208 Crucible steel Inorganic materials 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 2
- 231100001261 hazardous Toxicity 0.000 abstract 1
- 230000001788 irregular Effects 0.000 description 1
Landscapes
- Reinforcement Elements For Buildings (AREA)
Abstract
Form 24 (s.s. 21, 31, 34, & 142) Abstract It is a tool for splitting wood, specifically a hollow steel sheath fabricated in the exact configuration of a plastic wedge commonly used in the logging industry. To use it, a plastic wedge is inserted into the metal sheath and both are simultaneously driven into the wood by hammer force striking the plastic wedge.
Specification This invention relates to a manually driven wedge used for splitting wood.
The plastic only wedges now in use are very frail relative to the forces they are subjected to, and therefore have a limited lifespan. The plastic only wedges are also somewhat flexible which often causes them to bounce forcibly out of their intended direction. This makes them hazardous to the workman, and the plastic wedges cover enough distance to make retrieval difficult. An all-steel wedge is dangerous because of steel particles dislodged by the force of steel (i.e. hammer) on steel wedge. Further, the weight of all-steel wedges make them impractical to handle and carry.
Specification This invention relates to a manually driven wedge used for splitting wood.
The plastic only wedges now in use are very frail relative to the forces they are subjected to, and therefore have a limited lifespan. The plastic only wedges are also somewhat flexible which often causes them to bounce forcibly out of their intended direction. This makes them hazardous to the workman, and the plastic wedges cover enough distance to make retrieval difficult. An all-steel wedge is dangerous because of steel particles dislodged by the force of steel (i.e. hammer) on steel wedge. Further, the weight of all-steel wedges make them impractical to handle and carry.
Description
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Form 24 (page 2) The steel sheath wedge will withstand the forces of splitting wood (i.e. knots, irregular grain, etc.) inflnitly longer than plastic wedges. By inserting a plastic wedge lnto the hollow steel sheath, the workman's hammer or axe will be striking only the plastic wedge protruding from the steel wedge sheath, negating the pogsibility of flying steel part-icles. The flexibility or 'spring' of the plastic wedge ls neutralized facilitating easier starting of the wedge lnto the wood with no dan8er Of it bouncing out. The lightweight oE the hollow steel sheath makes it eagy to carry and handle.
In drawings which illustrate embodiments of the lnvention, Figure 1 is a lateral view of the steel sheath A with the plastic wedge B inserted into it and protruding froo it.
The drawing should indlcate an exact conformity in th- shape of the steel sheath to the plastic wedge.
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, O 2~0763 . Form 24 (page 3) Figure 2 is a frontal view of the steel sheath A and the.plaseic wedge B protruding from it. Dotted lines indicate plastic wedge enclosed in the steel ~heath.
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Form 24 (page 2) The steel sheath wedge will withstand the forces of splitting wood (i.e. knots, irregular grain, etc.) inflnitly longer than plastic wedges. By inserting a plastic wedge lnto the hollow steel sheath, the workman's hammer or axe will be striking only the plastic wedge protruding from the steel wedge sheath, negating the pogsibility of flying steel part-icles. The flexibility or 'spring' of the plastic wedge ls neutralized facilitating easier starting of the wedge lnto the wood with no dan8er Of it bouncing out. The lightweight oE the hollow steel sheath makes it eagy to carry and handle.
In drawings which illustrate embodiments of the lnvention, Figure 1 is a lateral view of the steel sheath A with the plastic wedge B inserted into it and protruding froo it.
The drawing should indlcate an exact conformity in th- shape of the steel sheath to the plastic wedge.
I
~ .
"~, ., ' ' ''"
, O 2~0763 . Form 24 (page 3) Figure 2 is a frontal view of the steel sheath A and the.plaseic wedge B protruding from it. Dotted lines indicate plastic wedge enclosed in the steel ~heath.
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Claims
Form 24 (page 4) The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows (1)A hollow steel wedge-shaped tool for splitting wood manually. (It is designed to be used in conjunction with a common plastic wedge which is partly encased by the hollow steel wedge.) (2) A metal sheath of approximately 1/8th inch thickness to molded and cast in steel as to snugly and exactly surround and fit the contour and shape of a plastic insert commonly used in the forest industry.
(3) A cast steel sheath or boot so molded to exactly fit around a plastic wedge insert(used for spitting and levering trees in the forest industry) .
(3) A cast steel sheath or boot so molded to exactly fit around a plastic wedge insert(used for spitting and levering trees in the forest industry) .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2050763 CA2050763A1 (en) | 1991-09-06 | 1991-09-06 | Perma tip safety wedge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2050763 CA2050763A1 (en) | 1991-09-06 | 1991-09-06 | Perma tip safety wedge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2050763A1 true CA2050763A1 (en) | 1993-03-07 |
Family
ID=4148309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2050763 Abandoned CA2050763A1 (en) | 1991-09-06 | 1991-09-06 | Perma tip safety wedge |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2050763A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1757754A3 (en) * | 2005-07-29 | 2008-05-28 | Patents Production srl | Plastic wedge with side metal support for formwork boards |
-
1991
- 1991-09-06 CA CA 2050763 patent/CA2050763A1/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1757754A3 (en) * | 2005-07-29 | 2008-05-28 | Patents Production srl | Plastic wedge with side metal support for formwork boards |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |