US354412A - Making perforated screening-plates - Google Patents

Making perforated screening-plates Download PDF

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Publication number
US354412A
US354412A US354412DA US354412A US 354412 A US354412 A US 354412A US 354412D A US354412D A US 354412DA US 354412 A US354412 A US 354412A
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US
United States
Prior art keywords
plates
screening
making perforated
perforated screening
holes
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
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Better Sleep Inc
Publication date
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Publication of US354412A publication Critical patent/US354412A/en
Anticipated expiration legal-status Critical
Assigned to BETTER SLEEP INC. reassignment BETTER SLEEP INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BETTER SLEEP MANUFACTURING CO.
Expired - Lifetime legal-status Critical Current

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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
    • B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
    • B21D31/02—Stabbing or piercing, e.g. for making sieves
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/496—Multiperforated metal article making
    • Y10T29/49604—Filter
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49616—Structural member making
    • Y10T29/4962—Grille making
    • 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
    • Y10T407/00—Cutters, for shaping
    • Y10T407/10—Cutters, for shaping including noncutting work modifying means

Definitions

  • the plate to be punched is placed upon the 3 bed or lower die ofthe punching-machine, and the moving part or stock having a series of punches is forced down toward the plate.
  • the lower cutting-faces, a, of the punches and the cylindrical portions a are forced through the plate, when the tapered portions b crowd the metal outward, so that when the'full stroke has been completed a series of smooth holes, 0, each having a regular taper, are produced in the plate.
  • holes of square, oblong, rectangular, oval, triangular, or other shape may be produced by using punches of such shapes.

Description

FTDP-nq OR 354941? (No Model.)
S. H. HARRINGTON.
MAKING PBRPORATED SCREENING PLATES.
No. 354,412. Patented Dec. 14,1886. Q;
ak m
N PETERS. Plwlo-Liihtgnphqr, WamInghm. 0.0.
UNITED STATES .PATENT OFFICE.
STEPHEN H. HARRINGTON, OF CHICAGO, ILLINOIS.
MAKING PERFORATED SCREENING-PLATES.
SPECIFICATION forming part of Letters Patent No. 354,412, dated December 14, 1886.
(No model.)
To all whom it may concern:
Be it known that I, STEPHEN H. HARRING- TON, of Chicago, in the county of Cook and State of Illinois, have invented certain new 5 and useful Improvements in the Production of Perforated Screening-Plates for Use in Mining or other Operations, of which the following is a specification, reference being had to the accompanying drawings, and to the letters of 10 reference marked thereon.
Heretofore such plates have been made with straight holes, or such holes have after the punching been reamed out to a taper; and it is my object to produce by a punching action r 5 alone plates with smooth tapered holes. This result, so far as my information extends, has never been successfully reached in the simple operation of punching. In plates used for screening ores and other analogous purposes ijlecessarythat the plate should be pro edyvith's1n'ooth holes having a regular ap'eiyiahdcgecoi omy in' production requires suehfholesshould be produced without In the accompanying drawings, Figure 1 represents a punch used for carrying out, and Fig. 2 a plate produced in accordance with, my invent-ion.
The plate to be punched is placed upon the 3 bed or lower die ofthe punching-machine, and the moving part or stock having a series of punches is forced down toward the plate. The lower cutting-faces, a, of the punches and the cylindrical portions a are forced through the plate, when the tapered portions b crowd the metal outward, so that when the'full stroke has been completed a series of smooth holes, 0, each having a regular taper, are produced in the plate. It is to be understood that holes of square, oblong, rectangular, oval, triangular, or other shape may be produced by using punches of such shapes.
Having described my invention, I claim- The within-described method of producing in a sheet by a ppnchingnoperat-ion a smooth hole having a regular taper by spreading or crowding the metal out laterally from the punch to the necessary taper by a continuation of the stroke of the punch which has effected the perforation of the sheet, substantially as set forth.
In testimony whereof I have hereunto set my hand and seal.
s'rnrunr u. HARRINGTON. [n s] Witnesses: f
FRANK A. HELMER, A. N. EASTMAN.
US354412D Making perforated screening-plates Expired - Lifetime US354412A (en)

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US354412A true US354412A (en) 1886-12-14

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2666543A (en) * 1948-02-26 1954-01-19 Filmsort Inc Card preparing machine
US2754907A (en) * 1950-10-02 1956-07-17 Olin Mathieson Picking up scrap ring resulting from extrusion of tubular articles
US2890070A (en) * 1954-06-16 1959-06-09 Gasaccumulator Svenska Ab Rail-bond shoe attachable by conically pointed brazing pin
US3044167A (en) * 1959-02-13 1962-07-17 Const Guinard Soc Gang cutting and forming punch for the manufacture of filtering elements
US3095035A (en) * 1957-06-21 1963-06-25 Int Paper Co Freight car closure
US3194283A (en) * 1959-09-01 1965-07-13 James A Young Method of shaping wire screen
US3195220A (en) * 1963-12-30 1965-07-20 Karl H Roehrs Surface finishing apparatus and process
US4306441A (en) * 1978-07-10 1981-12-22 Colt Industries Operating Corp Method and apparatus for manufacturing and forming engine induction passage venturi
US20040094494A1 (en) * 2002-10-24 2004-05-20 Lynk, Inc. Over door storage rack for cabinet doors

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2666543A (en) * 1948-02-26 1954-01-19 Filmsort Inc Card preparing machine
US2754907A (en) * 1950-10-02 1956-07-17 Olin Mathieson Picking up scrap ring resulting from extrusion of tubular articles
US2890070A (en) * 1954-06-16 1959-06-09 Gasaccumulator Svenska Ab Rail-bond shoe attachable by conically pointed brazing pin
US3095035A (en) * 1957-06-21 1963-06-25 Int Paper Co Freight car closure
US3044167A (en) * 1959-02-13 1962-07-17 Const Guinard Soc Gang cutting and forming punch for the manufacture of filtering elements
US3194283A (en) * 1959-09-01 1965-07-13 James A Young Method of shaping wire screen
US3195220A (en) * 1963-12-30 1965-07-20 Karl H Roehrs Surface finishing apparatus and process
US4306441A (en) * 1978-07-10 1981-12-22 Colt Industries Operating Corp Method and apparatus for manufacturing and forming engine induction passage venturi
US20040094494A1 (en) * 2002-10-24 2004-05-20 Lynk, Inc. Over door storage rack for cabinet doors

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