US2778421A - Shear - Google Patents

Shear Download PDF

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Publication number
US2778421A
US2778421A US34072253A US2778421A US 2778421 A US2778421 A US 2778421A US 34072253 A US34072253 A US 34072253A US 2778421 A US2778421 A US 2778421A
Authority
US
United States
Prior art keywords
crosshead
end frame
frame means
shear
movement
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
Application number
Inventor
Frederick E Munschauer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Niagara Machine and Tool Works
Original Assignee
Niagara Machine and Tool Works
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US53128A external-priority patent/US2645287A/en
Application filed by Niagara Machine and Tool Works filed Critical Niagara Machine and Tool Works
Priority to US34072253 priority Critical patent/US2778421A/en
Application granted granted Critical
Publication of US2778421A publication Critical patent/US2778421A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D35/00—Tools for shearing machines or shearing devices; Holders or chucks for shearing tools
    • B23D35/005—Adjusting the position of the cutting members
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8821—With simple rectilinear reciprocating motion only
    • Y10T83/8867—With means to adjust tool position on tool holder

Definitions

  • a pair of end frame means and a bed extending therebetween and fixed rigidly thereto said bed including a work table having a stationary lower shear knife fixed to the rear edge thereof, each of said end frame means comprising a pair of wall portions spaced in the direction of shearing, a reciprocable crosshead including an upper shear knife, means carried by each of said end frame means between the spaced walls thereof for guiding the opposite end portions of said crosshead in a generally vertical path of movement to effect shearing strokes, a pair of vertically spaced inclined guide surfaces between the spaced walls of each of said end frame means, and cooperating inclined guide surfaces on each of said crosshead guide means mounting the latter for movement along the inclined surfaces of said end frame means for adjusting the horizontal clearance between the shear knives, and means for locking the crosshead guide means in any desired position of lineal adjustment along said inclined surfaces.
  • a pair of end frame means and a bed extending therebetween and fixed rigidly thereto said bed including a work table having a stationary lower shear knife fixed to the rear edge thereof, a reciprocable crosshead including an upper shear knife, means carried by each of said end frame means for guiding the opposite end portions of said crosshead in a generally vertical path of movement to effect shearing strokes, a pair of vertically spaced inclined guide surfaces on said end frame means and cooperating inclined guide surfaces on each of said crosshead guide means mounting the latter for movement along the inclined surfaces of said end frame means for adjusting the horizontal clearance between the shear knives, and means for locking the crosshead guide means in any desired position of lineal adjustment along said inclined sur faces.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Threshing Machine Elements (AREA)

Description

Jan. 22, 1957 SHEAR F. E. MUNSCHAUER Original Filed Oct. 6, 1948 c Io IZL IN V EN TOR.
' FkEDER/CAE. Mun/5cm (/5? nection with the drive shaft of the machine and any vertical movement of the guides incident to horizontal adjustment merely produces movement of the guides upwardly or downwardly along the engaging surfaces of the crosshead.
What is claimed is:
1. In a machine for shearing metal sheets and the like, a pair of end frame means and a bed extending therebetween and fixed rigidly thereto, said bed including a work table having a stationary lower shear knife fixed to the rear edge thereof, each of said end frame means comprising a pair of wall portions spaced in the direction of shearing, a reciprocable crosshead including an upper shear knife, means carried by each of said end frame means between the spaced walls thereof for guiding the opposite end portions of said crosshead in a generally vertical path of movement to effect shearing strokes, a pair of vertically spaced inclined guide surfaces between the spaced walls of each of said end frame means, and cooperating inclined guide surfaces on each of said crosshead guide means mounting the latter for movement along the inclined surfaces of said end frame means for adjusting the horizontal clearance between the shear knives, and means for locking the crosshead guide means in any desired position of lineal adjustment along said inclined surfaces.
2. In a machine for shearing metal sheets and the like,
a pair of end frame means and a bed extending therebetween and fixed rigidly thereto, said bed including a work table having a stationary lower shear knife fixed to the rear edge thereof, a reciprocable crosshead including an upper shear knife, means carried by each of said end frame means for guiding the opposite end portions of said crosshead in a generally vertical path of movement to effect shearing strokes, a pair of vertically spaced inclined guide surfaces on said end frame means and cooperating inclined guide surfaces on each of said crosshead guide means mounting the latter for movement along the inclined surfaces of said end frame means for adjusting the horizontal clearance between the shear knives, and means for locking the crosshead guide means in any desired position of lineal adjustment along said inclined sur faces.
References Cited in the file of this patent UNITED STATES PATENTS 786,592 Ohl Apr. 4, 1905 1,866,855 Kirsten July 12, 1932 2,321,741 Flowers June 15, 1943 2,339,641 Jensen Jan. 18, 1944 2,525,401 Dehn Apr. 10, 1950 2,593,144 Hercik Apr. 15, 1952 2,645,287 Munschauer July 14, 1953
US34072253 1948-10-06 1953-03-06 Shear Expired - Lifetime US2778421A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US34072253 US2778421A (en) 1948-10-06 1953-03-06 Shear

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US53128A US2645287A (en) 1948-10-06 1948-10-06 Adjustable guide for shear knives
US34072253 US2778421A (en) 1948-10-06 1953-03-06 Shear

Publications (1)

Publication Number Publication Date
US2778421A true US2778421A (en) 1957-01-22

Family

ID=26731485

Family Applications (1)

Application Number Title Priority Date Filing Date
US34072253 Expired - Lifetime US2778421A (en) 1948-10-06 1953-03-06 Shear

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US (1) US2778421A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3170351A (en) * 1960-11-28 1965-02-23 Baldwin Lima Hamilton Corp Shear for billets and the like
US3220237A (en) * 1962-01-29 1965-11-30 Farrel Corp Adjustable shear mounting for a hydraulic extrusion press
US4416176A (en) * 1982-01-15 1983-11-22 Frederick Forthmann Cutter assembly for cutting strip material

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US786592A (en) * 1904-09-21 1905-04-04 George A Ohl & Co Means for preventing tipping of tables of machines.
US1866855A (en) * 1930-05-09 1932-07-12 Oscar W Kirsten Shear knife adjusting means
US2321741A (en) * 1941-04-12 1943-06-15 Hydraulic Dev Corp Inc Guiding means for press platens
US2339641A (en) * 1942-04-20 1944-01-18 Whitney Metal Tool Company Squaring shears
US2525401A (en) * 1947-04-08 1950-10-10 Cleveland Crane Eng Shear press
US2593144A (en) * 1947-08-14 1952-04-15 Lad L Hercik Alligator shear blade mounting
US2645287A (en) * 1948-10-06 1953-07-14 Niagara Machine & Tool Works Adjustable guide for shear knives

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US786592A (en) * 1904-09-21 1905-04-04 George A Ohl & Co Means for preventing tipping of tables of machines.
US1866855A (en) * 1930-05-09 1932-07-12 Oscar W Kirsten Shear knife adjusting means
US2321741A (en) * 1941-04-12 1943-06-15 Hydraulic Dev Corp Inc Guiding means for press platens
US2339641A (en) * 1942-04-20 1944-01-18 Whitney Metal Tool Company Squaring shears
US2525401A (en) * 1947-04-08 1950-10-10 Cleveland Crane Eng Shear press
US2593144A (en) * 1947-08-14 1952-04-15 Lad L Hercik Alligator shear blade mounting
US2645287A (en) * 1948-10-06 1953-07-14 Niagara Machine & Tool Works Adjustable guide for shear knives

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3170351A (en) * 1960-11-28 1965-02-23 Baldwin Lima Hamilton Corp Shear for billets and the like
US3220237A (en) * 1962-01-29 1965-11-30 Farrel Corp Adjustable shear mounting for a hydraulic extrusion press
US4416176A (en) * 1982-01-15 1983-11-22 Frederick Forthmann Cutter assembly for cutting strip material

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