US166979A - Improvement in cultivator-teeth - Google Patents
Improvement in cultivator-teeth Download PDFInfo
- Publication number
- US166979A US166979A US166979DA US166979A US 166979 A US166979 A US 166979A US 166979D A US166979D A US 166979DA US 166979 A US166979 A US 166979A
- Authority
- US
- United States
- Prior art keywords
- tooth
- teeth
- improvement
- wheel
- cultivator
- 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 - Lifetime
Links
- 210000001699 lower leg Anatomy 0.000 description 14
- 230000000414 obstructive Effects 0.000 description 10
- 230000001105 regulatory Effects 0.000 description 4
- 210000001847 Jaw Anatomy 0.000 description 2
- 241001579678 Panthea coenobita Species 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 230000036633 rest Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B61/00—Devices for, or parts of, agricultural machines or implements for preventing overstrain
- A01B61/04—Devices for, or parts of, agricultural machines or implements for preventing overstrain of the connection between tools and carrier beam or frame
- A01B61/044—Devices for, or parts of, agricultural machines or implements for preventing overstrain of the connection between tools and carrier beam or frame the connection enabling a yielding pivoting movement around a substantially horizontal and transverse axis
- A01B61/046—Devices for, or parts of, agricultural machines or implements for preventing overstrain of the connection between tools and carrier beam or frame the connection enabling a yielding pivoting movement around a substantially horizontal and transverse axis the device including an energy accumulator for restoring the tool to its working position
Definitions
- JOHN FLYNN or MONGHES, wrsooNsrN.
- FIG. 1 is a side View of my improved device, shown with the tooth in working position, and parts being broken away to show the construction.
- Fig. 2 is the same view as Fig. l, but showing the tooth swung back to pass an obstruction.
- the object of this invention is to furnish an improvement in cultivators, seeders, 850., having teeth so constructed that they will yield to pass an obstruction, and will immediately readjust themselves in working position.
- the invention consists in the combination of the spring and its wheel with the tooth, having a concavity formed in its rear side contiguous to a lug, through which passes a setscrew, whereby the wheel can be adjusted in such manner as to cause the tooth to yield more or less readily, as required in different soils.
- A represents the beam or drag-bar.
- B represents the tooth, the upper end of the shank of which is pivoted to the bar or beam A in such a way that it can swing rearward, but not sidewise.
- a lug, 12 Upon the rear side of the middle part of the shank of the tooth B is formed a lug, 12 in which is formed a screw-hole to receive the set-screw O.
- a concavity, W In the rear side of the shank of the tooth B, just above the lug b is formed a concavity, W.
- the rear side of the shank of the tooth B, above the concavity b fisinclined or slightly curved, as shown in Figs. 1 and 2.
- a spring is a spring, the forward end of which is slotted longitudinally to receive the bolt E, by which it is secured to the beam or bar A, and is thickened toward its end, to preventit from slipping beneath said bolt E.
- jaws or a slotted block, F to receive the shank of the tooth B, and in the rear end of said slot is pivoted a small wheel or roller, G, which rests against and rolls along the rear edge of the shank of the tooth B.
- the spring D is made of such a strength that when left free its elasticity will force the tooth B forward until the wheel G enters the concavity b and will then support the said tooth against the draft strain under ordinary circumstances; but should the tooth B strike a root, stone, or other obstruction, the increased pressure will cause the wheel G to rise out of the concavity b and move up along the rear edge of the shank of the tooth B, allowing the said tooth B to swing back and pass the obstruction. As soon as the obstruction has been passed the elasticity of the spring D will force the wheel G downward, forcing the tooth again into working position.
- the position or pitch of the tooth B is regulated by loosening the bolt E and moving the spring D forward or back.
- the resistance of the spring D to rearward pressure upon the tooth B is regulated by adjusting the set-screw O to allow the wheel G to enter the concavity b more or less.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Soil Working Implements (AREA)
Description
UNITED STATES PATENT CFFICE,
JOHN FLYNN, or MONGHES, wrsooNsrN.
IMPROVEMENT IN CULTlVATOR-TEETH.
Specification forming part of Letters Patent No. 166,979, dated August 24, 1875 application filed May 15, 1875.
To all whom it may concern:
Be itknown that I, JOHN FLYNN, of Monches, in the county of Waukesha and State of Wis consin, have invented a new and useful 1mprovement in Self-Adjustin g Cultivator-Tooth, of which the following is a specification Figure 1 is a side View of my improved device, shown with the tooth in working position, and parts being broken away to show the construction. Fig. 2 is the same view as Fig. l, but showing the tooth swung back to pass an obstruction.
Similar letters of reference indicate corresponding parts.
The object of this invention is to furnish an improvement in cultivators, seeders, 850., having teeth so constructed that they will yield to pass an obstruction, and will immediately readjust themselves in working position.
The invention consists in the combination of the spring and its wheel with the tooth, having a concavity formed in its rear side contiguous to a lug, through which passes a setscrew, whereby the wheel can be adjusted in such manner as to cause the tooth to yield more or less readily, as required in different soils.
A represents the beam or drag-bar. B represents the tooth, the upper end of the shank of which is pivoted to the bar or beam A in such a way that it can swing rearward, but not sidewise. Upon the rear side of the middle part of the shank of the tooth B is formed a lug, 12 in which is formed a screw-hole to receive the set-screw O. In the rear side of the shank of the tooth B, just above the lug b is formed a concavity, W. The rear side of the shank of the tooth B, above the concavity b fisinclined or slightly curved, as shown in Figs. 1 and 2. D is a spring, the forward end of which is slotted longitudinally to receive the bolt E, by which it is secured to the beam or bar A, and is thickened toward its end, to preventit from slipping beneath said bolt E. To the rear end of thespring D are secured jaws or a slotted block, F, to receive the shank of the tooth B, and in the rear end of said slot is pivoted a small wheel or roller, G, which rests against and rolls along the rear edge of the shank of the tooth B. The spring D is made of such a strength that when left free its elasticity will force the tooth B forward until the wheel G enters the concavity b and will then support the said tooth against the draft strain under ordinary circumstances; but should the tooth B strike a root, stone, or other obstruction, the increased pressure will cause the wheel G to rise out of the concavity b and move up along the rear edge of the shank of the tooth B, allowing the said tooth B to swing back and pass the obstruction. As soon as the obstruction has been passed the elasticity of the spring D will force the wheel G downward, forcing the tooth again into working position. The position or pitch of the tooth B is regulated by loosening the bolt E and moving the spring D forward or back. The resistance of the spring D to rearward pressure upon the tooth B is regulated by adjusting the set-screw O to allow the wheel G to enter the concavity b more or less.
Having thus described my invention, Iclaim as new and desire to secure by Letters Patent The combination of spring D F and wheel G with the pivoted tooth B, having the con cavity b lug b and set-screw 0, as shown and described, to operate as specified.
JOHN FLYNN.
Witnesses MIoHAEL DAILY, J AS. LINNEHAN, DENNIS FLYNN.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US166979A true US166979A (en) | 1875-08-24 |
Family
ID=2236388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US166979D Expired - Lifetime US166979A (en) | Improvement in cultivator-teeth |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US166979A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3022835A (en) * | 1960-02-23 | 1962-02-27 | Int Harvester Co | Spring trip for plows |
-
0
- US US166979D patent/US166979A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3022835A (en) * | 1960-02-23 | 1962-02-27 | Int Harvester Co | Spring trip for plows |
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