US1583701A - Plow - Google Patents

Plow Download PDF

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Publication number
US1583701A
US1583701A US55593A US5559325A US1583701A US 1583701 A US1583701 A US 1583701A US 55593 A US55593 A US 55593A US 5559325 A US5559325 A US 5559325A US 1583701 A US1583701 A US 1583701A
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US
United States
Prior art keywords
mold
board
plow
edge
hardened
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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
Application number
US55593A
Inventor
Printz Oscar Adolf Kristian
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US55593A priority Critical patent/US1583701A/en
Priority to GB3708/26A priority patent/GB249058A/en
Priority to DEA47022D priority patent/DE440519C/en
Application granted granted Critical
Publication of US1583701A publication Critical patent/US1583701A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • A01B15/00—Elements, tools, or details of ploughs
    • A01B15/02—Plough blades; Fixing the blades
    • A01B15/08—Mouldboards

Definitions

  • This invention relates to plows and more particularly to mold-boards for plows.
  • moldboards for plows of so called soft-center steel that is, a steel comprising an intermediate layer of soft iron. and two outer layers of a steel of high carbon content, capable of being hardened and welder. to the said intermediate layer.
  • Figure 1 is'a section of part of such a mold-board of soft-center steel of the hitherto used design together with a portion of the plow standard to which the mold-board is secured by means of screws.
  • 1 indicates the standard, made in the wellknown way of cast iron or steel that is not hardened.
  • 2 is the outer hardened layer of the mold-board, and 3 is the soft intermediate layer thereof.
  • the arrow indicates thedirection of movement of the plow.
  • the point 4 of the section will thus he on the cutting edge of the mold-board when in operation.
  • the limiting surfaces 5 and 6 0f the cutting portion are in the operation of the plow subjected to a considerable wear,
  • the edge of the moldboard will soon become blunt and, after having been used for a rather short period of time, the section of the edge will be somewhat like that shown in Fig. 2 and, as a result, the tractive power required for driving the plow must be substantially in creased.
  • the present invention has for its obgect to overcome said inconvenience by stiffening the edge of the mold-board so as to obtain a greater depth as seen in the rearward direction while maintaining the alternate layers of hardened and non-hardened material of the mold-board also within the reinforced portions, atrthe same time increasing the thickness of'the various layers.
  • this result is obtained by forming the foremost cutting portion of the outer layer of: the -mold-board blank. with a stiffening ridge on its rear surface, said ridge'being formed by bending and upsetting the foremost edge of the mohjl-board blank,
  • the invention is illustrated byway of example in Figp3 of the drawing.
  • the numeral 7 indicates the plow standard
  • 8 are the two outer hardened layers
  • 9 is the soft intermediatelayer.
  • the stiffening ridge at the foremost edge of the mold-board is formed by bending the foremost portion of the mold-board blank through an angle of about 45 and upsetting said bent portion by a pressure directed towards the edge. Due to fening ridge on its rear side produced by bending and upsetting the foremost edge of the outer layer of said mold-board.

Description

I o. A. K. PRlglTZ now Filed Sept. 1 1925 Patented May 4, 1926.
UNITED STATES OSCAR ADOLF xnrs'rmn PRINTZ, or OFVERUM, SWEDEN.
PLOW.
Application filed September 10, 1925. Serial No. 55,593.
To all whom it may concern:
Be it known that L'OSCAR AnoLr :KRIS" TIAN PRINTZ, a citizen of the Kingdom of Sweden, residing at Ofverum, Swedemhave invented new and useful Improvements in Plows, of which the following is a specification.
This invention relates to plows and more particularly to mold-boards for plows.
It is proposed to manufacture moldboards for plows of so called soft-center steel, that is, a steel comprising an intermediate layer of soft iron. and two outer layers of a steel of high carbon content, capable of being hardened and welder. to the said intermediate layer.
With reference to the accompanying drawing, Figure 1 is'a section of part of such a mold-board of soft-center steel of the hitherto used design together with a portion of the plow standard to which the mold-board is secured by means of screws.
1 indicates the standard, made in the wellknown way of cast iron or steel that is not hardened. 2 is the outer hardened layer of the mold-board, and 3 is the soft intermediate layer thereof. The arrow indicates thedirection of movement of the plow. The point 4 of the section will thus he on the cutting edge of the mold-board when in operation. The limiting surfaces 5 and 6 0f the cutting portion are in the operation of the plow subjected to a considerable wear,
and as the layers of the mold-board are comparatively thin the edge of the moldboard will soon become blunt and, after having been used for a rather short period of time, the section of the edge will be somewhat like that shown in Fig. 2 and, as a result, the tractive power required for driving the plow must be substantially in creased.
The present invention has for its obgect to overcome said inconvenience by stiffening the edge of the mold-board so as to obtain a greater depth as seen in the rearward direction while maintaining the alternate layers of hardened and non-hardened material of the mold-board also within the reinforced portions, atrthe same time increasing the thickness of'the various layers. According to this invention this result is obtained by forming the foremost cutting portion of the outer layer of: the -mold-board blank. with a stiffening ridge on its rear surface, said ridge'being formed by bending and upsetting the foremost edge of the mohjl-board blank,
The invention is illustrated byway of example in Figp3 of the drawing. With reference to Fig. 3, the numeral 7 indicates the plow standard, 8 are the two outer hardened layers, and 9 is the soft intermediatelayer. The stiffening ridge at the foremost edge of the mold-board is formed by bending the foremost portion of the mold-board blank through an angle of about 45 and upsetting said bent portion by a pressure directed towards the edge. Due to fening ridge on its rear side produced by bending and upsetting the foremost edge of the outer layer of said mold-board.
In testimony whereof I have signed my' name. i I
- OSCAR ADOLF KRISTIAN PRINTZ.
US55593A 1925-03-28 1925-09-10 Plow Expired - Lifetime US1583701A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US55593A US1583701A (en) 1925-03-28 1925-09-10 Plow
GB3708/26A GB249058A (en) 1925-03-28 1926-02-09 Improvements in plows
DEA47022D DE440519C (en) 1925-03-28 1926-02-12 Plow mouldboard made of armor plate steel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE249058X 1925-03-28
US55593A US1583701A (en) 1925-03-28 1925-09-10 Plow

Publications (1)

Publication Number Publication Date
US1583701A true US1583701A (en) 1926-05-04

Family

ID=26656168

Family Applications (1)

Application Number Title Priority Date Filing Date
US55593A Expired - Lifetime US1583701A (en) 1925-03-28 1925-09-10 Plow

Country Status (3)

Country Link
US (1) US1583701A (en)
DE (1) DE440519C (en)
GB (1) GB249058A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2670988A1 (en) * 1990-12-31 1992-07-03 Huard Ucf Mould board for a plough and method for manufacturing it

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1132759B (en) * 1961-02-09 1962-07-05 Rabewerk Clausing Heinrich Ploughshare
DE3309312A1 (en) * 1983-03-16 1984-09-20 Pflugfabrik Lemken Kg, 4234 Alpen PLOW BODY WITH TWO-PIECE SHARE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2670988A1 (en) * 1990-12-31 1992-07-03 Huard Ucf Mould board for a plough and method for manufacturing it

Also Published As

Publication number Publication date
DE440519C (en) 1927-02-07
GB249058A (en) 1926-03-18

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