US570177A - Swivel-plow - Google Patents
Swivel-plow Download PDFInfo
- Publication number
- US570177A US570177A US570177DA US570177A US 570177 A US570177 A US 570177A US 570177D A US570177D A US 570177DA US 570177 A US570177 A US 570177A
- Authority
- US
- United States
- Prior art keywords
- plow
- swivel
- lufkin
- cap
- chamber
- 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
- 230000002441 reversible Effects 0.000 description 2
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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
- A01B3/00—Ploughs with fixed plough-shares
- A01B3/04—Animal-drawn ploughs
- A01B3/16—Alternating ploughs, i.e. capable of making an adjacent furrow on return journey
- A01B3/18—Turn-wrest ploughs
Definitions
- My invention relates to an automatic adjusting-latch, the object of which is to facilitate reversing the plow, as shown in the accompanying drawings, in which Figure 1 is a side elevation. Fig. 2 is a top view. Figs. 3 and 4 are detail views.
- the beam A handles B B, and landside or standard 0 constitute the framework of the plow.
- the moldboard D including point or share E, provided with wings a a, is pivoted to the front end of the standard or landside O and to the rear end of the same by a V- shaped dog-brace, which is attached to the inner side of the moldboard D, on which it may be reversed from right to left, forming a right-hand plow or a left-hand plow, and held firmly in position by one of the hooks b, which are screwed into the arms 0 c of cap F and held in position by check-nuts d d or in any convenient way.
- the cap F is provided with a chamber which sits loosely on an upright fulcrum G, provided with a chamber 6, in which is set a spiral spring f, with a bolt 9, passing up through the springf', chamber e,
- the under surface or bottom of cap F is provided with a series of inclined planes h, which correspond with a similar series t on the fulcrum G, arranged in such a manner that when the upperhook b is pushed downward the spring f is compressed.
- the lower hook I) is raised from its catch j in the moldboard D, and the upper hook I) is carried downward by means of the contraction of the spring f, operating on the inclined planes h and 'i, into position to latch automatically into the catch j on the opposite side when the plow is reversed, and the lower hook is carried upward into position to be used as a lever for unlatching the plow when reversing.
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- Life Sciences & Earth Sciences (AREA)
- Zoology (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Soil Working Implements (AREA)
Description
G. 'M. LUFKIN.
-swIvBL PLOW.
( No Model.)
No. 570,177. Patented Oct 27, 1896.
UNITED STATES PATENT OFFICE.
CHARLES M. LUFKIN, OF LANGD ON, NEW HAMPSHIRE.
SWlVEL-PLOW..
SPECIFICATION formingpart of Letters Patent No. 570,177, dated October 27, 1896.
Application filed April 30, 1891. Serial No. 391,165. (No model.)
To all whom it may concern:
Be it known that 1, CHARLES M. LUFKIN, a citizen of the United States, residing at Langdon, in the county of Sullivan and State of New Hampshire, have invented a new and useful Improvement in Swivel-Flows, of which the following is a specification.
My invention relates to an automatic adjusting-latch, the object of which is to facilitate reversing the plow, as shown in the accompanying drawings, in which Figure 1 is a side elevation. Fig. 2 is a top view. Figs. 3 and 4 are detail views.
Similar letters refer to similar parts in the several views.
The beam A, handles B B, and landside or standard 0 constitute the framework of the plow. The moldboard D, including point or share E, provided with wings a a, is pivoted to the front end of the standard or landside O and to the rear end of the same by a V- shaped dog-brace, which is attached to the inner side of the moldboard D, on which it may be reversed from right to left, forming a right-hand plow or a left-hand plow, and held firmly in position by one of the hooks b, which are screwed into the arms 0 c of cap F and held in position by check-nuts d d or in any convenient way. The cap F is provided with a chamber which sits loosely on an upright fulcrum G, provided with a chamber 6, in which is set a spiral spring f, with a bolt 9, passing up through the springf', chamber e,
and cap F, holding it firmly down on the upright G.
The under surface or bottom of cap F is provided with a series of inclined planes h, which correspond with a similar series t on the fulcrum G, arranged in such a manner that when the upperhook b is pushed downward the spring f is compressed. The lower hook I) is raised from its catch j in the moldboard D, and the upper hook I) is carried downward by means of the contraction of the spring f, operating on the inclined planes h and 'i, into position to latch automatically into the catch j on the opposite side when the plow is reversed, and the lower hook is carried upward into position to be used as a lever for unlatching the plow when reversing.
I am aware that prior to my invention plows have been made with reversible moldboards and automatic latches. I therefore do not claim such a combination broadly; but
WVha-t I do claim as my invention, and desire to secure by Letters Patent, is-
In a swivel-plow, the combination of the fulcrum G, provided with inclined planes 1', and chamber e, the spiral spring f, bolt g, and cap F, having inclined planes h and hooks b b, all constructed and arranged to operate substantially as set forth.
CHARLES M. LUFKIN. IVitnesses:
I-IATTIE L. LUFKIN, ALMON B. LUFKIN.
Publications (1)
Publication Number | Publication Date |
---|---|
US570177A true US570177A (en) | 1896-10-27 |
Family
ID=2638881
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US570177D Expired - Lifetime US570177A (en) | Swivel-plow |
Country Status (1)
Country | Link |
---|---|
US (1) | US570177A (en) |
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0
- US US570177D patent/US570177A/en not_active Expired - Lifetime
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