US237439A - jenkins - Google Patents
jenkinsDownload PDFInfo
- Publication number
- US237439A US237439AUS237439DAUS237439AUS 237439 AUS237439 AUS 237439AUS 237439D AUS237439D AUS 237439DAUS 237439 AUS237439 AUS 237439A
- Authority
- US
- United States
- Prior art keywords
- jenkins
- metal
- punch
- cutters
- samuel
- 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
- 239000002184metalSubstances0.000description5
- 230000015572biosynthetic processEffects0.000description1
- 239000000835fiberSubstances0.000description1
- 238000005755formation reactionMethods0.000description1
- 238000003801millingMethods0.000description1
- 238000004080punchingMethods0.000description1
- 238000010008shearingMethods0.000description1
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
- Y10T83/9432—Plural spaced successively operative shearing portions
Definitions
- the object of this inventionis to construct a tool for punching metal having certain new and useful improvements on a punch, described in a patent issued to me J anuary 29, 1878, No. 199,715, by having the cutters made in such form that the moment they commence to ream the metal around the punched hole the shearing thereof will be borne equally on both sides of each cutter, and thereby relieve the tool from any tendency to twist; and, furthermore, the form of the above-mentioned cutters is such that they may be produced by milling, and consequently they can be made much cheaper and with less labor than heretofore.
- Myinvent-ionconsists of the peculiar forma tion of the cutters on a punch, said punch consisting of a central cylinder, A, surrounded by a second cutting-edge, having downward conical projections B B evenly spaced around said cylinder.
- the said cuttersare made in the form of two cones with their apexes equidistant one from the other, so that in the downward movement of the punch they may chase or ream out the punched hole and cut away that part of the metal the fiber of which has been destroyed in spaced around said cylinder, and both edges of" 5 each projection being of corresponding shape, substantially as and for the uses and purposes shown and described.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Description
(No Model.) S. H. JENKINS. Pun-0h for Metal.
No. 237,439. Pa-tentedFeb. 8,1881.
da d 2 NJ'ETERS, PHOTO-LIT" HAP ER, WI NI G'TON, D, C
UNITED STATES PATENT ()FFICE.
SAMUEL H. JENKINS, OF NEW YORK, N. Y.
PUNCH FOR METAL.
SPECIFICATION forming part of Letters Patent No. 237,439, dated February 8, 1881,
Application filed May 14, 1880. (No model.)
To all whom it may concern Be it known that I, SAMUEL H. JENKINS, a citizen of the United States, residing in the city, county, and State of New York, have invented certain new and useful Improvements in Punches for Metal, of which the following is a specification.
The object of this invention is to construct a tool for punching metal having certain new and useful improvements on a punch, described in a patent issued to me J anuary 29, 1878, No. 199,715, by having the cutters made in such form that the moment they commence to ream the metal around the punched hole the shearing thereof will be borne equally on both sides of each cutter, and thereby relieve the tool from any tendency to twist; and, furthermore, the form of the above-mentioned cutters is such that they may be produced by milling, and consequently they can be made much cheaper and with less labor than heretofore.
Myinvent-ion consists of the peculiar forma tion of the cutters on a punch, said punch consisting of a central cylinder, A, surrounded by a second cutting-edge, having downward conical projections B B evenly spaced around said cylinder. The said cutters are made in the form of two cones with their apexes equidistant one from the other, so that in the downward movement of the punch they may chase or ream out the punched hole and cut away that part of the metal the fiber of which has been destroyed in spaced around said cylinder, and both edges of" 5 each projection being of corresponding shape, substantially as and for the uses and purposes shown and described.
SAMUEL H. JENKINS. Witnesses:
CHARLES H. NASH, ALEX. F. ROBERTS.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US237439Atrue US237439A (en) | 1881-02-08 |
Family
ID=2306797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US237439DExpired - LifetimeUS237439A (en) | jenkins |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US237439A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2522440A (en)* | 1949-09-22 | 1950-09-12 | Roy J Freter | Cold punching metal parts |
| US3910213A (en)* | 1974-11-15 | 1975-10-07 | Continental Can Co | Method of perforating the necks of aerosol containers |
| US20040123714A1 (en)* | 2002-12-26 | 2004-07-01 | Savoy Mark A. | Programmable apparatus and method for body panel attachment |
| EP3296047A1 (en)* | 2016-09-14 | 2018-03-21 | Maquinaria Geka S.A. | Punching device, punch and method |
| US20220288802A1 (en)* | 2021-03-11 | 2022-09-15 | Apex Mfg. Co., Ltd. | Hole puncher |
- 0
- USUS237439Dpatent/US237439A/ennot_activeExpired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2522440A (en)* | 1949-09-22 | 1950-09-12 | Roy J Freter | Cold punching metal parts |
| US3910213A (en)* | 1974-11-15 | 1975-10-07 | Continental Can Co | Method of perforating the necks of aerosol containers |
| US20040123714A1 (en)* | 2002-12-26 | 2004-07-01 | Savoy Mark A. | Programmable apparatus and method for body panel attachment |
| US7117706B2 (en)* | 2002-12-26 | 2006-10-10 | Utica Enterprises, Inc. | Programmable apparatus and method for body panel attachment |
| EP3296047A1 (en)* | 2016-09-14 | 2018-03-21 | Maquinaria Geka S.A. | Punching device, punch and method |
| US10722958B2 (en) | 2016-09-14 | 2020-07-28 | Activos Industriales Madama, S.L. | Punching device, punch and method |
| US20220288802A1 (en)* | 2021-03-11 | 2022-09-15 | Apex Mfg. Co., Ltd. | Hole puncher |
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