[go: up one dir, main page]

US1408546A - Spring retainer and safety cover for sectional tube expanders - Google Patents

Spring retainer and safety cover for sectional tube expanders Download PDF

Info

Publication number
US1408546A
US1408546A US426071A US42607120A US1408546A US 1408546 A US1408546 A US 1408546A US 426071 A US426071 A US 426071A US 42607120 A US42607120 A US 42607120A US 1408546 A US1408546 A US 1408546A
Authority
US
United States
Prior art keywords
cover
spring retainer
safety cover
expander
sections
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
Application number
US426071A
Inventor
Edward J Sweeney
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US426071A priority Critical patent/US1408546A/en
Application granted granted Critical
Publication of US1408546A publication Critical patent/US1408546A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/08—Tube expanders
    • B21D39/20—Tube expanders with mandrels, e.g. expandable

Definitions

  • T his invention has reference to tube expanders oi? the sectional type, the object of the invention being to provide a safety cover for the expander, eliminating the usual coiled spring employed as a part of this construction, the cover acting as a retainer for the sections of the expander.
  • FIG. '1 illustrates a side elevational view of a sectional tube expander, showing a cover as constructed in accordance with the present invention as applied thereto,
  • Figure 2 illustrates an end elevational view of the same
  • Figure 3- illustrates a sectional view taken on line 3-3 of Figure 2.
  • the ex pander to which the cover is applied is formed in the usual manner and includes a plurality of sections 5, which sections have inclined inner surfaces to insure a close (it between the sections, and as shown, the lower outer surface of each section t: )ers as at 6 to permit the expander to be positioned within a tube or pipe.
  • Each section is provided with a relatively straight upper portion '7, the respective sec tions being also provided with a groove in the outer surface thereof, so that when a number of sections are brought into engagement with each other, the grooves of the sections will form a circumferential groove around the expander,
  • the cover forming an important feature of this invention is formed preferably of sheet metal, and includes a body portion 8, and an upper flange portion 9, the cover being circular in formation and having overlapping ends, whereby the cover may expand and contract when the same is in operation.
  • a depressed portion 11 Formed in the body portion 8, at a point substantiallyintermediate the width thereof, is a depressed portion 11 designed to be fitted within the circumferential groove of the expander, to eliminate movement of the cover with respect to the expander.
  • a circular cover adapted to be positioned over one end of the expander, and having a flange portion contacting with one end of the expander, said circular cover having overlapping ends to permit the cover to expand and contract, and said cover adapted to hold the sections of the expander in an assembled position.
  • cover formed of sheet metal and having a depressed portionforming an enlargement on the inner surface of the cover, said enlargement adapted to be fitted within the circumferential groove for securing the cover to the expander, and said cover adapted to move with the expansion and contraction of the sections.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Springs (AREA)

Description

E- SWEENEY.
SPRING RETAINER AND SAFETY COVER FOR SECTIONM. TUBE EXPANDERS.
APPLICATWN FILED NOV-23' IBZO- 1,408,546. Patented Mar. 7, 1922.
Mmup.
UNITED STATES PATENT OFFICE.
EDWARD J. SWEENEY, OF HAMMOND, INDIANA.
SPRING RETAINER AND SAFETY COVER FOR SECTIONAL TUBE EXPANDERS.
Application filed November To all whom it may concern.
Be it known that I, Enwann J. SWEENEY, a citizen of the United States, residing at Hammond, in the county of Lake and State of Indiana, have invented a new and useful Spring Retainer and Safety Cover for Seetional Tube Expanders, of which the following is a specification.
T his invention has reference to tube expanders oi? the sectional type, the object of the invention being to provide a safety cover for the expander, eliminating the usual coiled spring employed as a part of this construction, the cover acting as a retainer for the sections of the expander.
\Vith the foregoing and other objects in view which will appear as the'description proceeds, the invention resides in the com bination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of what is claimed, without departing from the spirit of the invention.
Referring to the drawing Figure '1 illustrates a side elevational view of a sectional tube expander, showing a cover as constructed in accordance with the present invention as applied thereto,
Figure 2 illustrates an end elevational view of the same; and
Figure 3- illustrates a sectional view taken on line 3-3 of Figure 2.
Referring to the drawing in detail, the ex pander to which the cover is applied, is formed in the usual manner and includes a plurality of sections 5, which sections have inclined inner surfaces to insure a close (it between the sections, and as shown, the lower outer surface of each section t: )ers as at 6 to permit the expander to be positioned within a tube or pipe.
Each section is provided with a relatively straight upper portion '7, the respective sec tions being also provided with a groove in the outer surface thereof, so that when a number of sections are brought into engagement with each other, the grooves of the sections will form a circumferential groove around the expander,
Specification of Letters Patent.
Patented Mar. 7, 1922.
23, 1920. Serial No. 426,071.
The cover forming an important feature of this invention is formed preferably of sheet metal, and includes a body portion 8, and an upper flange portion 9, the cover being circular in formation and having overlapping ends, whereby the cover may expand and contract when the same is in operation.
Formed in the body portion 8, at a point substantiallyintermediate the width thereof, is a depressed portion 11 designed to be fitted within the circumferential groove of the expander, to eliminate movement of the cover with respect to the expander.
In the operation of the device it is obvious that as the sections are moved laterally, the cover moves or expands with the sections and insures against displacement thereof.
While I have shown and described the cover as employed in place of the usual spring construction, it is to be understood that this cover may be employed in connection with expanders while the spring is positioned on the sections thereof.
Having thus described invention, what is claimed as new is 1. In combination with a sectional expander, a circular cover adapted to be positioned over one end of the expander, and having a flange portion contacting with one end of the expander, said circular cover having overlapping ends to permit the cover to expand and contract, and said cover adapted to hold the sections of the expander in an assembled position.
2. In combination with a sectional expander having a circumferential groove, 21. cover formed of sheet metal and having a depressed portionforming an enlargement on the inner surface of the cover, said enlargement adapted to be fitted within the circumferential groove for securing the cover to the expander, and said cover adapted to move with the expansion and contraction of the sections.
In testimony that I claim the foregoing as my own, I have hereto aiiixed my signature in the presence of two witnesses.
EDWARD J. SWVEENEY.
Witnesses M. THERESA BUCK, JOHN D, SMAL EY
US426071A 1920-11-23 1920-11-23 Spring retainer and safety cover for sectional tube expanders Expired - Lifetime US1408546A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US426071A US1408546A (en) 1920-11-23 1920-11-23 Spring retainer and safety cover for sectional tube expanders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US426071A US1408546A (en) 1920-11-23 1920-11-23 Spring retainer and safety cover for sectional tube expanders

Publications (1)

Publication Number Publication Date
US1408546A true US1408546A (en) 1922-03-07

Family

ID=23689158

Family Applications (1)

Application Number Title Priority Date Filing Date
US426071A Expired - Lifetime US1408546A (en) 1920-11-23 1920-11-23 Spring retainer and safety cover for sectional tube expanders

Country Status (1)

Country Link
US (1) US1408546A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2672175A (en) * 1952-06-03 1954-03-16 Russell B Howard Pipe expander

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2672175A (en) * 1952-06-03 1954-03-16 Russell B Howard Pipe expander

Similar Documents

Publication Publication Date Title
US584008A (en) Charles f
US1408546A (en) Spring retainer and safety cover for sectional tube expanders
US1296342A (en) Dowel for conduit-sections.
US282967A (en) duffy
US1315904A (en) Stovepipe
US1291119A (en) Bolt-anchor.
US1480608A (en) Air valve
US1858173A (en) Packing ring
US955153A (en) Stovepipe.
US1005760A (en) Flue-sheet.
US629095A (en) Hot-air pipe for furnaces.
US2065817A (en) Piston ring
US856839A (en) Stovepipe-joint.
US1348146A (en) Piston-ring
US1157226A (en) Concrete-casing.
US801273A (en) Packing-ring.
US1094332A (en) Pipe-coupling.
US1506767A (en) Device for guiding expansible packing rings onto pistons
US1245912A (en) Hose-coupling.
US657992A (en) Stovepipe.
US1351645A (en) Pipe-coupling
US1783892A (en) Thread protector
US758870A (en) Pipe collar or ring.
US1062993A (en) Two-part expansion-shield.
US1756419A (en) Expansion shield