US484112A - Harvey d - Google Patents

Harvey d Download PDF

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US484112A
US484112A US484112DA US484112A US 484112 A US484112 A US 484112A US 484112D A US484112D A US 484112DA US 484112 A US484112 A US 484112A
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Prior art keywords
former
mandrel
metal
harvey
punch
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    • 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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
    • B21D5/08—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles making use of forming-rollers

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  • This invention relates to machines for making sheet-metal pipes in which a sheet or strip of metal is wound spirally and has the lapped edges secured together by rivets; and it consists in the construction and novel arrangement of parts, as hereinafter described.
  • Figure 1 is a side elevation of a device embodying my improvement.
  • Fig. 2 is a transverse section thereof.
  • Fig. 3 is a top view.
  • Fig. 4. is a 'perspective view of a certain part.
  • A des ignates a hollow mandrel upon which a sheet or strip of metal A is spirally wound to form a pipe or tube.
  • This former designates a formerhavin g its interiorconforming to the shape of the mandrel and the pipe thereon and adapted to surround the pipe and press it closely on the mandrel as the metal is fed along.
  • This former is provided with a hole I) for the passage of the punch b
  • the mandrel A is also provided with a hole a to receive the end of the punch and allow the punched-out pieces of metal to fall into the mandrel.
  • the holes a are punched through the lapped edges of the metal, and rivets a are subsequently placed therein. It is found that in machines of this character the former B wears away on its interior surface quite rapidly. I therefore pro- Serial No. 425,110. (No model.)
  • the former is split transversely, as at b and the opposite sections have outwardly-extending jaws b which are perforated for the passage of clamping-bolts b Between the jaws b I introduce one or more shims b These-shims may be of hard wood, and as the interior of the former wears away the shim or shims are to be substituted by thinner ones, so that the diameter of the former may be reduced by manipulating the clampingscrews. As before stated, the former or holder wears away quite rapidly, and it is necessary that the holder should fit quite snugly around the pipe material.
  • the combination with a mandrel and a punch, of the former split transversely and having the outwardly-extending jaws, a shim between said jaws, and clamping means, the said mandrel and former having registering openings to receive the punch, substantially as specified.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)

Description

(No Model.) 4
H. D. RICE. MACHINE FOR MAKING SHEET METAL PIPES.
No. 484,112. Patented Oct. 11, 1892.
UNITED STATES PATENT OFFICE.
HARVEY D. RICE, OF BROOKLYN, ASSIGNOR TO THE ABENDROTH & ROOT MANUFACTURING COMPANY, OF NEW YORK, N. Y.
MACHINE FOR MAKING SHEET-METAL PIPES.
SPECIFICATION forming part of Letters Patent No. 484,112, dated October 11, 1892.
Application filed March 16, 1892.
To all whom it may concern.-
Be it known that I, HARVEY D. RICE, of Brooklyn, Kings county, and State of New York, have invented a certain new and useful Improvement in Machines for Making Sheet-Metal Pipes, of which the following is a specification.
This invention relates to machines for making sheet-metal pipes in which a sheet or strip of metal is wound spirally and has the lapped edges secured together by rivets; and it consists in the construction and novel arrangement of parts, as hereinafter described.
In the accompanying drawings, Figure 1 is a side elevation of a device embodying my improvement. Fig. 2 is a transverse section thereof. Fig. 3 is a top view. Fig. 4. is a 'perspective view of a certain part.
Similar letters of reference designate corresponding parts in all the figures.
Referring by letter to the drawings, A des ignates a hollow mandrel upon which a sheet or strip of metal A is spirally wound to form a pipe or tube.
B designates a formerhavin g its interiorconforming to the shape of the mandrel and the pipe thereon and adapted to surround the pipe and press it closely on the mandrel as the metal is fed along. This former is provided with a hole I) for the passage of the punch b, and the mandrel A is also provided with a hole a to receive the end of the punch and allow the punched-out pieces of metal to fall into the mandrel. The holes a are punched through the lapped edges of the metal, and rivets a are subsequently placed therein. It is found that in machines of this character the former B wears away on its interior surface quite rapidly. I therefore pro- Serial No. 425,110. (No model.)
vide means for adjusting the former. As here shown, the former is split transversely, as at b and the opposite sections have outwardly-extending jaws b which are perforated for the passage of clamping-bolts b Between the jaws b I introduce one or more shims b These-shims may be of hard wood, and as the interior of the former wears away the shim or shims are to be substituted by thinner ones, so that the diameter of the former may be reduced by manipulating the clampingscrews. As before stated, the former or holder wears away quite rapidly, and it is necessary that the holder should fit quite snugly around the pipe material.
Having described my invention, what I claim is- 1. In a machine for making pipes of strip metal, the combination, with a mandrel and a punch, of a tubular former on the mandrel and having means for adjusting its inner diameter, said mandrel and former having registering openings to receive the punch, substantially as specified.
2. In a machine for making strip-metal pipes, the combination, with a mandrel and a punch, of the former split transversely and having the outwardly-extending jaws, a shim between said jaws, and clamping means, the said mandrel and former having registering openings to receive the punch, substantially as specified.
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
' HARVEY D. RICE.
Witnesses:
GEO. W. PAYNTAR, JAMES CUMMINGS.
US484112D Harvey d Expired - Lifetime US484112A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2802530A (en) * 1952-10-23 1957-08-13 Amerace Corp Method of and apparatus for making a sprinkler hose

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2802530A (en) * 1952-10-23 1957-08-13 Amerace Corp Method of and apparatus for making a sprinkler hose

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