US57436A - Improvement in plow-clevis - Google Patents
Improvement in plow-clevis Download PDFInfo
- Publication number
- US57436A US57436A US57436DA US57436A US 57436 A US57436 A US 57436A US 57436D A US57436D A US 57436DA US 57436 A US57436 A US 57436A
- Authority
- US
- United States
- Prior art keywords
- clevis
- plow
- improvement
- thread
- bolt
- 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
- 238000005266 casting Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 230000002452 interceptive Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 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
- A01B59/00—Devices specially adapted for connection between animals or tractors and agricultural machines or implements
- A01B59/02—Devices specially adapted for connection between animals or tractors and agricultural machines or implements for animal-drawn machines
Definitions
- the accompanying drawing is a perspective view, representing a clevis embodying my in- Vention.
- A is the upper or plain eye of the clevis.
- B is the lower eye, its screw-thread 0 being interrupted by two longitudinal channels, 0 c, coincident with the partingline of the mold.
- the thread E of the bolt D is, like that of the eye in the clevis, interrupted by longitudinal blanks e e in the line of parting, and it is further interrupted by the omission of alternate segments of the thread, causing the threads to occupy a much less space than the intervals.
- every alternate thread also facilitates molding by permitting a greater body of sand between the threads, and, in connection with the longitudinal blanks and channels, permits the escape of dirt which otherwise might act to clog the parts in the act of inserting and removing the bolt.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Zoology (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Description
G. P. DARROW.
Plow-Clevis.
.No. 57,436. Patented Aug. 21, 1866.
ILPEYERS, FHOTO-LITHOGRAFHER. WASHINGTON D C.
UNITED STATES PATENT OFFICE.
GEO. P. DARROW, .OF CINCINNATI, OHIO, ASSIGNOR TO HIMSELF AND JOSEPH HARGRAVE.
IMPROVEM ENT IN PLOW-CLEVIS.
Specification forming part of Letters Patent No. 57,436, dated August 21, 1866.
terrupted screw-thread, whereby the entire clevis is enabled to be finished in the sand, and whereby, when in use, it is free from liability to clog by dirt or rust or to jam by the riding of one thread of the screw upon another.
The accompanying drawing is a perspective view, representing a clevis embodying my in- Vention.
A is the upper or plain eye of the clevis. B is the lower eye, its screw-thread 0 being interrupted by two longitudinal channels, 0 c, coincident with the partingline of the mold.
The thread E of the bolt D is, like that of the eye in the clevis, interrupted by longitudinal blanks e e in the line of parting, and it is further interrupted by the omission of alternate segments of the thread, causing the threads to occupy a much less space than the intervals. i
The provision of the longitudinal channels and blanks enables both clevis and bolt to be completed in the foundry-by the simple acts of molding and casting, any fin left by the parting occurring wholly at the said channels and blanks, and not at all interfering with the functions of the screw.
The omission of every alternate thread also facilitates molding by permitting a greater body of sand between the threads, and, in connection with the longitudinal blanks and channels, permits the escape of dirt which otherwise might act to clog the parts in the act of inserting and removing the bolt.
I claim herein as new and of my invention Forming the clevis and bolt by casting the same with interrupted threads, in the manner and forthe purpose set forth.
In testimony of which invention I hereunto set my hand.
GEO. P. DARROW.
Witnesses GEo. H. KNIGHT, JAMES H. LAYMAN.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US57436A true US57436A (en) | 1866-08-21 |
Family
ID=2126975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US57436D Expired - Lifetime US57436A (en) | Improvement in plow-clevis |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US57436A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070189832A1 (en) * | 2006-02-10 | 2007-08-16 | Ta Hsing Electric Wire & Cable Co., Ltd. | Control button assembly for mechanical pen |
-
0
- US US57436D patent/US57436A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070189832A1 (en) * | 2006-02-10 | 2007-08-16 | Ta Hsing Electric Wire & Cable Co., Ltd. | Control button assembly for mechanical pen |
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