US402381A - Shear-knife - Google Patents
Shear-knife Download PDFInfo
- Publication number
- US402381A US402381A US402381DA US402381A US 402381 A US402381 A US 402381A US 402381D A US402381D A US 402381DA US 402381 A US402381 A US 402381A
- Authority
- US
- United States
- Prior art keywords
- knife
- shear
- cutting
- edges
- knives
- 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
- 238000010008 shearing Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- COLNVLDHVKWLRT-QMMMGPOBSA-N L-phenylalanine Chemical compound OC(=O)[C@@H](N)CC1=CC=CC=C1 COLNVLDHVKWLRT-QMMMGPOBSA-N 0.000 description 2
- 210000001364 Upper Extremity Anatomy 0.000 description 2
- DXPOSRCHIDYWHW-UHFFFAOYSA-N Xamoterol Chemical compound C=1C=C(O)C=CC=1OCC(O)CNCCNC(=O)N1CCOCC1 DXPOSRCHIDYWHW-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000002441 reversible Effects 0.000 description 2
Images
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
- B23D35/002—Means for mounting 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S83/00—Cutting
- Y10S83/955—Cutter edge shiftable to present different portion of edge
-
- 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
- Y10T83/929—Tool or tool with support
- Y10T83/9411—Cutting couple type
- Y10T83/9447—Shear type
Definitions
- FIG. 1 is a front elevation of my improved shear-knives secured to their holders.
- Fig. 2 is a side view thereof.
- Fig. 3 is a face view of the upper knife.
- Fig. a is a side view thereof.
- Fig. 5 is a face view, and
- Fig. 6 is a side View, of one of the sections of the lower knife.
- Figs. 1, 2, 3, and 4 2 represents the moving knife of shears for cutting angle-shaped iron
- 3 is the knife-head to which it is secured.
- the knife is made-equilateral, preferably quadrilateral, in outline with rounded corners, and is set vertically in an angular cavity in the face of the knifehead, as shown in Fig. 1, so that two edges and the back of the knife shall be braced and supported by the knife-head and that the outer angle and the adj acent' edges of the knife shall be free to act in the operation of shearing.
- the knife is held to the knifeholder by bolts 4, which pass through registering and symmetrically-placed bolt-holes in the knife and in the knife-holder, as shown in Fig. 2, the bolt-holes in the knife being preferably countersunk on both sides, so that a recess shall be afforded for the head of the bolt, whether one side or the other of the (See Figs. 2 and 4.)
- the cutting-edge of the bed-knife 6 of the shears is the counterpart in shape of the moving knife, and is set in an angular recess in a knife-holder, 5, which is suitably bolted to the frame of the machine.
- the knife is made in two parts, a and b, which are or may be similar in shape, being formed with equal angles at the ends thereof, so that when placedtogether, as shown in Fig. 1, the parts shall present a cutting-edge of the desired form, and that when reversed and readjusted, as hereinafter described, they shall present an angular knife of the same shape.
- the knives are used in the ordinary manner of shear-knives,the metal being placed on the knife 6 and being sheared off bythe descent of the moving knife, though, if desired, the knife 6 may be used as the moving knife and the knife 2 as the stationary knife, or both knives may be movable in shearing the piece.
- a new cuttingedge may be presented by removing the bolts 4, turning the knife one-quarterround in the recess of the knife-holder, and the bolts again tightened to hold the knife in place.
- the knife is thus capable of being turned and of presenting four cutting edges or angles without reversing the faces of the knife in the holder, and four additional cutting-edges may be presented by reversing the faces of the knife and turning the knife one-quarter round from time to time as new cutting-edges may be required, so that the knife possesses eight cutting edges or angles.
- the lower knife, 6, is constructed to serve a similar purpose, and its parts may be shifted in position four times as the cutting-edge in use becomes worn out,
- Phe knife-sections (i may also be made of different shape from that which I h ave shown for example each maybe hexagonal in form.
- I claim 1 An angled shearduiife made in separate interchangeable sections constituting the sides of the angle, substantially as and for the r purpose described.
- shear-knife for reception of the shear-knife, and an equiangular polygonal shear-knife secured therein having shearing edges which fit against the sides of said recess, in virtue of which any one of its salient ang es maybe presented in cutting, in combination with a bed-knife having an angular cutting-edge the counterpart of the salient angle of the first named shear-knife, substantially as and for the purposes described.
Description
(NoModeL) 2 Sheets-Sheet 1.
- H. AIKEN.
SHEAR KNIFE.
No. 402.381. I Patented Apr. 30, 1889.
WITNESSES] 'INVENTOR.
u Pzrznmmwmn w, washmglun. we
(No Model.) I v 2 SheetsSheet 2.
7 H. AIKEN.
SHEAR KNIFE.
.No. 402,381. Patented Apr. 30, 1889.
a WITNESSES. INVENTOR.
' knife is outwardly exposed UNITED ST TES PATENT OFFICE.
HENRY AIKEN, or HOMESTEAD, PENNSYLVANIA.
SHEAR-KNIFE.
SPECIFICATION forming part of Letters Patent No. 402,381, dated April 30, 1889.
Application filed December 11, 1888. Serial No. 293,270- (No model.)
To all whom it mar/concern:
Be it known that I, HENRY AIKEN, of Homestead, in the county of Allegheny and State of Pennsylvania, have invented a'new and useful Improvem ent in Shear-Knives, of which the following is a full, clear, and exact descrip tion, reference being had to the accompanying drawings, formingv part of this specification, in which- Figure 1 is a front elevation of my improved shear-knives secured to their holders. Fig. 2 is a side view thereof. Fig. 3 is a face view of the upper knife. Fig. a is a side view thereof. Fig. 5 is a face view, and Fig. 6 is a side View, of one of the sections of the lower knife.
Like symbols .of reference indicate like parts in each.
I shall first describe the construction of my improved shear-knives, and shallthen indicate their advantages and the manner of their use. a
In the drawings, Figs. 1, 2, 3, and 4, 2 represents the moving knife of shears for cutting angle-shaped iron, and 3 is the knife-head to which it is secured. The knife is made-equilateral, preferably quadrilateral, in outline with rounded corners, and is set vertically in an angular cavity in the face of the knifehead, as shown in Fig. 1, so that two edges and the back of the knife shall be braced and supported by the knife-head and that the outer angle and the adj acent' edges of the knife shall be free to act in the operation of shearing. The knife is held to the knifeholder by bolts 4, which pass through registering and symmetrically-placed bolt-holes in the knife and in the knife-holder, as shown in Fig. 2, the bolt-holes in the knife being preferably countersunk on both sides, so that a recess shall be afforded for the head of the bolt, whether one side or the other of the (See Figs. 2 and 4.)
The cutting-edge of the bed-knife 6 of the shears is the counterpart in shape of the moving knife, and is set in an angular recess in a knife-holder, 5, which is suitably bolted to the frame of the machine. The knife is made in two parts, a and b, which are or may be similar in shape, being formed with equal angles at the ends thereof, so that when placedtogether, as shown in Fig. 1, the parts shall present a cutting-edge of the desired form, and that when reversed and readjusted, as hereinafter described, they shall present an angular knife of the same shape.
The knives are used in the ordinary manner of shear-knives,the metal being placed on the knife 6 and being sheared off bythe descent of the moving knife, though, if desired, the knife 6 may be used as the moving knife and the knife 2 as the stationary knife, or both knives may be movable in shearing the piece.
If the cutting-edges of the knife 2 should become broken or so worn as to be unfit for use without repair or grinding, a new cuttingedge may be presented by removing the bolts 4, turning the knife one-quarterround in the recess of the knife-holder, and the bolts again tightened to hold the knife in place. The knife is thus capable of being turned and of presenting four cutting edges or angles without reversing the faces of the knife in the holder, and four additional cutting-edges may be presented by reversing the faces of the knife and turning the knife one-quarter round from time to time as new cutting-edges may be required, so that the knife possesses eight cutting edges or angles. The lower knife, 6, is constructed to serve a similar purpose, and its parts may be shifted in position four times as the cutting-edge in use becomes worn out,
so that all four cutting-edges must be worn may be reversed laterally to present similar .90
cutting-edgescfi, 011 the opposite side,as shown in Fig. 6. This reversal is facilitated by the double countersinking of the bolt-holes, as before explained. An additional adjustment of these knife-sections is possible when the cutting-edges at the angle of the knife become more worn than the upper extremities of the sections. knife-sections may be exchanged without reversing either of them, so as to bring the upper corners of the sections into the position of the meeting angle, and vice versa. In this In such case the positions of the way four additional changes in position are possible.
The advantages of my improvement will be appreciated by those skilled in the art. The length of time during which the knives may be used Without repair by simple changes in position is the cause of saving considerable time and labor in the operation of the shears, and prevents the frequent annoyance which is occasioned by the necessity for removing and smithing the knives heretofore in common use.
The nature and scope of my invention is stated in the following claims, each of which states an item of invention unlimited by the elements and limitations contained in the others.
Phe knife-sections (i may also be made of different shape from that which I h ave shown for example each maybe hexagonal in form.
I claim 1. An angled shearduiife made in separate interchangeable sections constituting the sides of the angle, substantially as and for the r purpose described.
2. An angled'shear-knife made in sections which constitute the sides of the angle, each section having its ends formed at equal angles, so that the knife may be shifted to present fresh cutting-edges, substantially as and for the purposes described.
recess for reception of the shear-knife, and an equiangular polygonal shear-knife secured therein having shearing edges which fit against the sides of said recess, in virtue of which any one of its salient ang es maybe presented in cutting, in combination with a bed-knife having an angular cutting-edge the counterpart of the salient angle of the first named shear-knife, substantially as and for the purposes described.
In testimony whereof I have hereunto set my hand this 8th day of December, A. D. 1888.
IIEHRY AIKEN.
"W itnesses:
W. B. CoRWIn, THOMAS \V. ZAKEWELL.
Publications (1)
Publication Number | Publication Date |
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US402381A true US402381A (en) | 1889-04-30 |
Family
ID=2471336
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US402381D Expired - Lifetime US402381A (en) | Shear-knife |
Country Status (1)
Country | Link |
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US (1) | US402381A (en) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2805581A (en) * | 1955-12-02 | 1957-09-10 | Pneumatic Jacks Inc | Lifting jack |
US3150551A (en) * | 1959-01-06 | 1964-09-29 | W A Whitney Mfg Co | Convertible hydraulically operated shear unit |
US4399730A (en) * | 1981-05-07 | 1983-08-23 | Oswalt Jr Harry L | Floating angle knife for metal working machines |
US5140882A (en) * | 1990-02-06 | 1992-08-25 | Peerless Machine & Tool Corporation | Assembly for severing sheet material |
US5291814A (en) * | 1991-12-30 | 1994-03-08 | Fierkens Richard H J | Lead frame cutting apparatus for integrated circuit packages |
US20040226421A1 (en) * | 2003-05-13 | 2004-11-18 | Kelley Donald R. | Pipe notcher |
US20050091852A1 (en) * | 2003-10-31 | 2005-05-05 | Karl Johnson | Metal demolition shears with indexable, integrated wear plate/piercing tip |
US20080072434A1 (en) * | 2006-09-27 | 2008-03-27 | Caterpillar Inc. | Reversible Bolt-On Piercing Tip |
US20120167740A1 (en) * | 2011-01-04 | 2012-07-05 | Ryan Eldridge | Four-Edge Shear Baler Blade |
US20190283156A1 (en) * | 2018-03-16 | 2019-09-19 | Freund Maschinenfabrik Gmbh & Co. Kg | Guide insert and saw blade guide for a bandsaw |
US11453145B2 (en) * | 2020-01-13 | 2022-09-27 | Leon Trudeau | Apparatus and methods for truncating elongated members |
USD1006845S1 (en) * | 2019-08-06 | 2023-12-05 | Nxl Technologies Inc. | Shear blade component for a shear blind assembly |
-
0
- US US402381D patent/US402381A/en not_active Expired - Lifetime
Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2805581A (en) * | 1955-12-02 | 1957-09-10 | Pneumatic Jacks Inc | Lifting jack |
US3150551A (en) * | 1959-01-06 | 1964-09-29 | W A Whitney Mfg Co | Convertible hydraulically operated shear unit |
US4399730A (en) * | 1981-05-07 | 1983-08-23 | Oswalt Jr Harry L | Floating angle knife for metal working machines |
US5140882A (en) * | 1990-02-06 | 1992-08-25 | Peerless Machine & Tool Corporation | Assembly for severing sheet material |
US5291814A (en) * | 1991-12-30 | 1994-03-08 | Fierkens Richard H J | Lead frame cutting apparatus for integrated circuit packages |
US7114423B2 (en) * | 2003-05-13 | 2006-10-03 | Kelley Donald R | Pipe notcher |
US20040226421A1 (en) * | 2003-05-13 | 2004-11-18 | Kelley Donald R. | Pipe notcher |
WO2004101233A2 (en) * | 2003-05-13 | 2004-11-25 | Kelley Donald R | Pipe notcher |
WO2004101233A3 (en) * | 2003-05-13 | 2005-06-02 | Donald R Kelley | Pipe notcher |
US8650759B2 (en) | 2003-10-31 | 2014-02-18 | Stanley Black & Decker, Inc. | Metal demolition shears with indexable, integrated wear plate/piercing tip |
US8146256B2 (en) * | 2003-10-31 | 2012-04-03 | Stanley Black & Decker, Inc. | Metal demolition shears with indexable, integrated wear plate/piercing tip |
US20080263870A2 (en) * | 2003-10-31 | 2008-10-30 | The Stanley Works | Metal demolition shears with indexable, integrated wear plate/piercing tip |
US20050091852A1 (en) * | 2003-10-31 | 2005-05-05 | Karl Johnson | Metal demolition shears with indexable, integrated wear plate/piercing tip |
US8327547B2 (en) | 2003-10-31 | 2012-12-11 | Stanley Black & Decker, Inc. | Metal demolition shears with indexable, integrated wear plate/piercing tip |
US9333570B2 (en) | 2006-09-27 | 2016-05-10 | Caterpillar Inc. | Reversible bolt-on piercing tip |
GB2479488B (en) * | 2006-09-27 | 2011-11-23 | Caterpillar Inc | A shear tip for a metal shears |
GB2479488A (en) * | 2006-09-27 | 2011-10-12 | Caterpillar Inc | Reversible Shear Tip for Metal Shears |
GB2454440B (en) * | 2006-09-27 | 2011-10-12 | Caterpillar Inc | A Shear Tip For A Metal Shears |
US20080072434A1 (en) * | 2006-09-27 | 2008-03-27 | Caterpillar Inc. | Reversible Bolt-On Piercing Tip |
US20120167740A1 (en) * | 2011-01-04 | 2012-07-05 | Ryan Eldridge | Four-Edge Shear Baler Blade |
US20190283156A1 (en) * | 2018-03-16 | 2019-09-19 | Freund Maschinenfabrik Gmbh & Co. Kg | Guide insert and saw blade guide for a bandsaw |
US11235401B2 (en) * | 2018-03-16 | 2022-02-01 | Freund Maschinenfabrik Gmbh & Co. Kg | Guide insert and saw blade guide for a bandsaw |
USD1006845S1 (en) * | 2019-08-06 | 2023-12-05 | Nxl Technologies Inc. | Shear blade component for a shear blind assembly |
US11453145B2 (en) * | 2020-01-13 | 2022-09-27 | Leon Trudeau | Apparatus and methods for truncating elongated members |
US11813773B2 (en) | 2020-01-13 | 2023-11-14 | Leon Trudeau | Apparatus and methods for truncating elongated members |
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