US229840A - Island - Google Patents
Island Download PDFInfo
- Publication number
- US229840A US229840A US229840DA US229840A US 229840 A US229840 A US 229840A US 229840D A US229840D A US 229840DA US 229840 A US229840 A US 229840A
- Authority
- US
- United States
- Prior art keywords
- punch
- richards
- island
- isaac
- apex
- 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
- 238000004080 punching Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 241000220010 Rhode Species 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
-
- 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
- Y10T83/9423—Punching tool
- Y10T83/9428—Shear-type male tool
Definitions
- A denotes the punch; at, its concavoconical end, curved, as shown,frorn its apex to its base.
- the cavity enables such bulging to take place without materially affecting the surrounding bearing-surface of the head.
- the cavity also answers to receive the mark or marksindicative of the size of the punch.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Description
No Model.
I P. RICHARDS. Metal Punch.
Pate'ntedJuly 13, 1880.
a; M i154 UNITED STATES PATENT OFFICE.
ISAAC P. RICHARDS, OF PROVIDENCE, RHODE ISLAND.
METAL-PUNCH.
SPECIFICATION forming part of Letters Patent No. 229,840, dated July 13, 1880. Application filed April 5,1880. (No model.)
To all whom "it may concern:
Be it known that I, ISAAC P. RICHARDS, of the city and county of Providence, and State of Rhode Island, have invented a new and useful Improvement in Punches for Perforating Metals; and I do hereby declare the same to be described in the following specification, and represented in the accompanyingdrawings, of which- Figure 1 is a front elevation, Fig. 2 a longitudinal section, and Fig. 3 a top view, of a punch made in accordance with my invention.
Heretof'ore in constructing punches for perforating metal plates it has been customary to make them with flat punching ends, or with such and a conical or cylindro-conical teat or center projecting from the flat end.
In carrying out myilnprovement, instead of so making the punch at its punching end, I there construct it tapering and concave from the apex of the tapered part to the circumference of its base, all as shown in the drawings,
in which A denotes the punch; at, its concavoconical end, curved, as shown,frorn its apex to its base.
In the butt or head of the punch I form a circular recess or shallow cavity, b, concentric with the outer surface of the head.
By thus constructing the end of the punch brought down upon a sheet or bar.
cumstances is liable to become bulged out in the process of hardening, the cavity enables such bulging to take place without materially affecting the surrounding bearing-surface of the head. The cavity also answers to receive the mark or marksindicative of the size of the punch.
I claim as my invention- A punch for the purpose described, having its punching end tapering and concave from its apex to its base, as set forth.
ISAAC P. RICHARDS.
Witnesses WM. W. DOUGLAS, SAML. T. DOUGLAS.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US229840A true US229840A (en) | 1880-07-13 |
Family
ID=2299217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US229840D Expired - Lifetime US229840A (en) | Island |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US229840A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5702556A (en) * | 1993-02-23 | 1997-12-30 | Minnesota Mining And Manufacturing Company | Method and apparatus for producing a laminated viscoelastic product |
| US20040112188A1 (en) * | 2002-12-17 | 2004-06-17 | Masatoshi Oishi | Method for press punching a hole in sheet metal and press die |
| US20080229893A1 (en) * | 2007-03-23 | 2008-09-25 | Dayton Progress Corporation | Tools with a thermo-mechanically modified working region and methods of forming such tools |
| US20090229417A1 (en) * | 2007-03-23 | 2009-09-17 | Dayton Progress Corporation | Methods of thermo-mechanically processing tool steel and tools made from thermo-mechanically processed tool steels |
| US20110094358A1 (en) * | 2008-06-18 | 2011-04-28 | Aramizu Teruo | Punch for punching sheet metal, sheet metal punching apparatus having the punch, and method therefor |
| GB2615599A (en) * | 2022-02-15 | 2023-08-16 | Chasestead Ltd | Indentation marker for press tool |
-
0
- US US229840D patent/US229840A/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5702556A (en) * | 1993-02-23 | 1997-12-30 | Minnesota Mining And Manufacturing Company | Method and apparatus for producing a laminated viscoelastic product |
| US20040112188A1 (en) * | 2002-12-17 | 2004-06-17 | Masatoshi Oishi | Method for press punching a hole in sheet metal and press die |
| US20110174127A1 (en) * | 2002-12-17 | 2011-07-21 | Ones Co., Ltd. | Method for press punching a hole in sheet metal and press die |
| US8087333B2 (en) * | 2002-12-17 | 2012-01-03 | Ones Co., Ltd. | Method for press punching a hole in sheet metal and press die |
| US20080229893A1 (en) * | 2007-03-23 | 2008-09-25 | Dayton Progress Corporation | Tools with a thermo-mechanically modified working region and methods of forming such tools |
| US20090229417A1 (en) * | 2007-03-23 | 2009-09-17 | Dayton Progress Corporation | Methods of thermo-mechanically processing tool steel and tools made from thermo-mechanically processed tool steels |
| US8968495B2 (en) | 2007-03-23 | 2015-03-03 | Dayton Progress Corporation | Methods of thermo-mechanically processing tool steel and tools made from thermo-mechanically processed tool steels |
| US9132567B2 (en) * | 2007-03-23 | 2015-09-15 | Dayton Progress Corporation | Tools with a thermo-mechanically modified working region and methods of forming such tools |
| US20110094358A1 (en) * | 2008-06-18 | 2011-04-28 | Aramizu Teruo | Punch for punching sheet metal, sheet metal punching apparatus having the punch, and method therefor |
| GB2615599A (en) * | 2022-02-15 | 2023-08-16 | Chasestead Ltd | Indentation marker for press tool |
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