US200454A - Improvement in machines for punching sheet-metal tubing - Google Patents

Improvement in machines for punching sheet-metal tubing Download PDF

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Publication number
US200454A
US200454A US200454DA US200454A US 200454 A US200454 A US 200454A US 200454D A US200454D A US 200454DA US 200454 A US200454 A US 200454A
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United States
Prior art keywords
machines
improvement
punching sheet
metal tubing
arms
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Expired - Lifetime
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00Shaping by press-cutting; Perforating
    • B21D28/24Perforating, i.e. punching holes
    • B21D28/28Perforating, i.e. punching holes in tubes or other hollow bodies
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/384By tool inside hollow work
    • Y10T83/395One tool having only rectilinear motion[s]
    • Y10T83/398Internal tool is an active cutter

Definitions

  • Figure I is a general view.
  • Fig. II is a sectional view of the working part.
  • the device consists of arms A, B, and C (see Fig. I) and standard D, secured laterally to the work-bench by shoulder E.
  • the cutter or upper punch F is secured to the upper arm A by plate Gr and screw-bolt H.
  • the cutter or lower punch I is secured to the lower arm 0 by the plate J, and is secured to standard K by a screw marked R.
  • Standard K moves freely in cylindrical socket L, and is temporarily secured by pin M, fitting in holes marked .9 s sin Fig. II.
  • the adjustment of standard K in socket L increases or diminishes the distance between arms B and O, and
  • the arms A, B, and O are of steel, and when not in use the arm A rests upon arm B.
  • the cylinder or piping is placed over arms B and O, the upper portion being between arms A and B, and the lower portion between arms (3 and D, the punchF being on the outside, and the punch I on the inside, of the cylinder or piping.
  • the punches are operated bya stroke of the hammer upon bolt H.

Description

v E. O. HI'GGINS. Machines for Punching Sheet-Metal Tubing.
No. 200,454. Patenfed Feb. 19, I878.
N. PETERS. PHOTO-LITHOGRAFHER. WASHINGTON, n C.
UNITED STATES PATENT OFFICE.-
EDWARD O. HIGGINS, OF FAIRHAVEN, MASSACHUSETTS.
IMPROVEMENT IN MACHINES FOR PUNCHING SHEET-METAL TUBIN G.
Specification forming part of Letters Patent No. 200,454, dated February 19, 1876; application filed October 22, 1877.
To all whom it may concern:
Be it known that I, EDWARD O. Hrcenvs of Fairhaven, in the county of Bristol, State of Massachusetts, have invented a new and useful device for punching with one movement stove-piping and cylinders of sheet metal, so as to receive dampers, stop-cocks, &c., which device is fully described in the following specification and illustrated in the accompanying drawing.
Figure I is a general view. Fig. II is a sectional view of the working part.
The device consists of arms A, B, and C (see Fig. I) and standard D, secured laterally to the work-bench by shoulder E. The cutter or upper punch F is secured to the upper arm A by plate Gr and screw-bolt H. The cutter or lower punch I is secured to the lower arm 0 by the plate J, and is secured to standard K by a screw marked R. (See Fig.2.) Standard K moves freely in cylindrical socket L, and is temporarily secured by pin M, fitting in holes marked .9 s sin Fig. II. The adjustment of standard K in socket L increases or diminishes the distance between arms B and O, and
adapts the device to cylinders and piping of various dimensions.
The arms A, B, and O are of steel, and when not in use the arm A rests upon arm B.
The cylinder or piping is placed over arms B and O, the upper portion being between arms A and B, and the lower portion between arms (3 and D, the punchF being on the outside, and the punch I on the inside, of the cylinder or piping.
The punches are operated bya stroke of the hammer upon bolt H.
I claim- For the purpose of punching with one movement both sides of a cylinder or piping of sheet metal at points diametrically opposite each other, the combination of arms A, B, and C and arm or standard D, secured to the workbench by shoulder E, as set forth, together with punches F and I.
EDWARD O. HIGGINS.
Witnesses:
ALBERT B. OoLLINs, SARAH L. KENNISON.
US200454D Improvement in machines for punching sheet-metal tubing Expired - Lifetime US200454A (en)

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US200454A true US200454A (en) 1878-02-19

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3074302A (en) * 1959-10-01 1963-01-22 Vogel Tool & Die Corp Method of preparing mitered tubular joints
US3995518A (en) * 1975-08-28 1976-12-07 Spiroff Carl M Means and methods for punching holes in catheters

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3074302A (en) * 1959-10-01 1963-01-22 Vogel Tool & Die Corp Method of preparing mitered tubular joints
US3995518A (en) * 1975-08-28 1976-12-07 Spiroff Carl M Means and methods for punching holes in catheters

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