US183204A - Improvement in harrows - Google Patents
Improvement in harrows Download PDFInfo
- Publication number
- US183204A US183204A US183204DA US183204A US 183204 A US183204 A US 183204A US 183204D A US183204D A US 183204DA US 183204 A US183204 A US 183204A
- Authority
- US
- United States
- Prior art keywords
- tooth
- harrow
- harrows
- improvement
- key
- 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
- 230000001154 acute Effects 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 239000007787 solid Substances 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 208000008313 Contusions Diseases 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000010959 steel 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
- A01B23/00—Elements, tools, or details of harrows
- A01B23/02—Teeth; Fixing the teeth
Definitions
- the object of my invention is to make a serviceable harrow and harrow-tooth.
- rlhe tooth is formed into an acute angle in front, and rounding on the back, is ot' solid steel, and so set into the 'barrow-bar that the acute angle of the tooth points directly in the line of motion of the harrow, and that the -two sides adjacent to that angle will bear equally upon the opposing soil when the harrow is in forward motion, and the tooth fastened in place in the bar by an iron key or wedge C.
- the tooth may be more or less securely fastened by the key or wedge, as the operator deslres.
- the drawing shows the 'wedge as being used, and I deem it preferable to use it in fastening the tooth, inasmuch as the tooth can not only be permanently fastened by it, but whenever it is desirable to take the tooth from the bar it can be done without bruising
- the harrow-bar has its lower corners beveled or rounded o'. The object of that is to prevent the soil from gathering between the front of the tooth and the bar immediately over the frnt of the tooth, thereby saving a great weight of draft.
Description
UNITED STATES PATENT OFFICE CALVIN L. PIERCE, OF FOND DU LAC, WISCONSIN, ASSIGNOR TO HENRY B. FARGO, OF SAME PLACE.
IMPROVEMENT IN HARROWS.
Specication forming part of Letters Patent No. 183,204., dated October 10, 1876; application filed April 2B, 1876.
To all whom it may concer/n:
Be it known that I, CALVIN L. PIERCE, of the city ot' Fond du Lac, in the State of Wiscousin, have invented certain Improvements in Barrows and. Harrow-Teeth, of which the following is a specification:
The object of my invention is to make a serviceable harrow and harrow-tooth.
rlhe tooth is formed into an acute angle in front, and rounding on the back, is ot' solid steel, and so set into the 'barrow-bar that the acute angle of the tooth points directly in the line of motion of the harrow, and that the -two sides adjacent to that angle will bear equally upon the opposing soil when the harrow is in forward motion, and the tooth fastened in place in the bar by an iron key or wedge C.
The tooth may be more or less securely fastened by the key or wedge, as the operator deslres.
The drawing shows the 'wedge as being used, and I deem it preferable to use it in fastening the tooth, inasmuch as the tooth can not only be permanently fastened by it, but whenever it is desirable to take the tooth from the bar it can be done without bruising The harrow-bar has its lower corners beveled or rounded o'. The object of that is to prevent the soil from gathering between the front of the tooth and the bar immediately over the frnt of the tooth, thereby saving a great weight of draft.
I am aware that a tooth in part similar in form to mine has been used.
I am also awarel that a hollow V-shaped harrow-tooth fastened with a key has been used, the key being of uniform size, and fitting the inside of the tooth.
I claim as my inventionl. A solid tooth of acute angle in front and convex back, with a flat bevel from the back side of the tooth downward to the front edge, as shown and described.
2. The combination, in a harrow, of a solid tooth of acute angle in front and convex back, as specified, the iron wedge or key to hold the tooth in place, and the bnr with beveled corners on the lower side, the tooth heilig set in the beam with its angles equally presented to the line of draft.
CALVIN L. PIERCE.
Signed in presence of- C. K. PIER, KATE PIER.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US183204A true US183204A (en) | 1876-10-10 |
Family
ID=2252609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US183204D Expired - Lifetime US183204A (en) | Improvement in harrows |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US183204A (en) |
-
0
- US US183204D patent/US183204A/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US183204A (en) | Improvement in harrows | |
| US186506A (en) | Improvement in harrow and land-roller combined | |
| US153430A (en) | Improvement in harrow-teeth | |
| US224722A (en) | Harrow-teeth | |
| US235651A (en) | Isaiah h | |
| US392590A (en) | Sweep for corn and cotton cultivators | |
| US369686A (en) | Combined harrow and clod-crusher | |
| US316755A (en) | Harrow | |
| US186864A (en) | Improvement in combined harrow and cultivator | |
| US104763A (en) | Improved cultivator | |
| US231386A (en) | Chaeles e | |
| US339835A (en) | baelbt | |
| US236292A (en) | baeley | |
| US112234A (en) | Improvement in plows | |
| US284093A (en) | Cultivator-beam | |
| US205520A (en) | Improvement in harrow-teeth fastenings | |
| US209348A (en) | Improvement in harrow attachments for plows | |
| US264300A (en) | Harrow | |
| USRE7180E (en) | Improvement in harrow-teeth | |
| US191604A (en) | Improvement in harrows | |
| US1097147A (en) | Subsoil-plow. | |
| US119397A (en) | Improvement in harrows | |
| US225444A (en) | Harrow | |
| US188732A (en) | Improvement in plows | |
| US453672A (en) | Harrow |