US494972A - Flexible metallic tubing - Google Patents
Flexible metallic tubing Download PDFInfo
- Publication number
- US494972A US494972A US494972DA US494972A US 494972 A US494972 A US 494972A US 494972D A US494972D A US 494972DA US 494972 A US494972 A US 494972A
- Authority
- US
- United States
- Prior art keywords
- strip
- ridges
- coils
- metal
- flexible metallic
- 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
- 239000002184 metal Substances 0.000 description 22
- 230000037250 Clearance Effects 0.000 description 2
- 230000035512 clearance Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/14—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics
- F16L11/16—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics wound from profiled strips or bands
Definitions
- This invention relates to flexible tubing for conveying fluids and sounds, and has for its object the cheap production of such tubes of light weight and great strength and flexibility, and is especially applicable to the connections between vehicles in trains for heating lighting and sound communication.
- the nature of this invention consists of a strip of metal having two parallel ridges of curved cross section wound helically with two ridges externally, and an interstice between the coils and a second strip of metal having two correspondingly shaped grooves wound over the first strip of metal so as to cover the interstices between the coils of the first strip and with the grooves of a second or outer strip fitting upon the ridges of the inner or first strip.
- Figure 1 shows an external view of the tube; Fig. 2 a lengthwise section thereof; Fig. 3 a section of the inner p1ate,or strip before coiling, and, Fig. 4 a section of the outer plate, or strip before coiling.
- l is a strip of metal having two curved ridges, 2, 2 with an intervening groove 3; which strip 1 is wound helically with the ridges 2 outward, and with a space between the coils about equal to the width of the grooves 3.
- t is another strip of metal having grooves formed therein fitting upon the contiguous ridges 2 of two coils of the strip 1, which strip 4 is coiled around the strip 1 so as to cover the interstices between the coils of the strip 1, and is of such width as to leave an inter- Serial No. 136,636- (No model.)
- the depth of the groove 3 is such that when the grooved surfaces of the strip a slide upon the ridges 2 of the strip 1 they do not make contact with the metal in the groove 3,
- a flexible tube consisting of a helically coiled strip of metal having two parallel convex ridges, and interstices between the coils, combined with a helically wound strip of metal having concave internal grooves fitting upon said ridges and covering the interstices between the coils of the ridged strip, substantially as set forth.
- a flexible tube consisting of an inner strip of metal, having two parallel convex ridges and an intervening groove 30f such smaller diameter than the said convex ridges as to avoid contact with the interior surfaces of a surrounding helical strip said strip being helically wound with an interstice between the coils, in combination with a surrounding helically wound strip of metal, having the concave grooves embracing the convex ridges of the inner strip of metal and covering the interstice between the coils substantially as set forth.
Description
(No Model.)
S. L. WIEGAND.
FLEXIBLE METALLIC TUBING. No. 494,972. PatentedApr. 4, 189 3.
UNITED STATES PATENT OFFICE.
S. LLOYD WIEGAND, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO ROBERT S. PETTET, OF ATLANTIC CITY, NEW JERSEY.
FLEXIBLE METALLIC TUBING.
SPECIFICATION forming part of Letters Patent No. 494,972, dated April. 4, 1893.
Application filed May 28, 1892.
To all whom it may concern:
Be it known that I, S. LLOYD WIEGAND, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Flexible Tubes; and I do hereby declare the following to be a sufficiently full, clear, and exact description thereof as to enable others skilled in the artto make and use the said invention.
This invention relates to flexible tubing for conveying fluids and sounds, and has for its object the cheap production of such tubes of light weight and great strength and flexibility, and is especially applicable to the connections between vehicles in trains for heating lighting and sound communication.
The nature of this invention consists of a strip of metal having two parallel ridges of curved cross section wound helically with two ridges externally, and an interstice between the coils and a second strip of metal having two correspondingly shaped grooves wound over the first strip of metal so as to cover the interstices between the coils of the first strip and with the grooves of a second or outer strip fitting upon the ridges of the inner or first strip.
The construction and operation are hereinafter fully described and shown in the accompanying drawings, in which,
Figure 1 shows an external view of the tube; Fig. 2 a lengthwise section thereof; Fig. 3 a section of the inner p1ate,or strip before coiling, and, Fig. 4 a section of the outer plate, or strip before coiling.
l, is a strip of metal having two curved ridges, 2, 2 with an intervening groove 3; which strip 1 is wound helically with the ridges 2 outward, and with a space between the coils about equal to the width of the grooves 3. 1
t is another strip of metal having grooves formed therein fitting upon the contiguous ridges 2 of two coils of the strip 1, which strip 4 is coiled around the strip 1 so as to cover the interstices between the coils of the strip 1, and is of such width as to leave an inter- Serial No. 136,636- (No model.)
stice between the coils of the strip 4, about equal to those between the coils of the strip 1. The depth of the groove 3 is such that when the grooved surfaces of the strip a slide upon the ridges 2 of the strip 1 they do not make contact with the metal in the groove 3,
' and thus avoid wearing the ridge 2 out of the form in which it is fitted into the groove of the strip 4, which would otherwise occur in the frequent fiexure of the tube. When the tube is flexed the edges of the strip 4 find a clearance in the groove 3. hen pressure is applied internally to the tube, the strip 1 is pressed tightly against the inner surface of the strip 4; when the tube is strained lengthwise either by internal pressure or by external force, the edges of the strip 4t press on the ridges of the strip 1 and prevent leakage besides resisting undue stretching of the tube in length.
Having described my invention, what I claim is p 1. A flexible tube consisting of a helically coiled strip of metal having two parallel convex ridges, and interstices between the coils, combined with a helically wound strip of metal having concave internal grooves fitting upon said ridges and covering the interstices between the coils of the ridged strip, substantially as set forth.
2. A flexible tube consisting of an inner strip of metal, having two parallel convex ridges and an intervening groove 30f such smaller diameter than the said convex ridges as to avoid contact with the interior surfaces of a surrounding helical strip said strip being helically wound with an interstice between the coils, in combination with a surrounding helically wound strip of metal, having the concave grooves embracing the convex ridges of the inner strip of metal and covering the interstice between the coils substantially as set forth.
S. LLOYD WIEGAND.
lVitnesses:
J. DANIEL EBY, LUTHER L. CHENEY.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US494972A true US494972A (en) | 1893-04-04 |
Family
ID=2563812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US494972D Expired - Lifetime US494972A (en) | Flexible metallic tubing |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US494972A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3154311A (en) * | 1961-10-03 | 1964-10-27 | Gen Electric | Sealing means |
| US5284185A (en) * | 1988-12-27 | 1994-02-08 | Shiro Kanao | Pressure-resistant helical corrugated pipe and method of producing same |
| US5385174A (en) * | 1988-12-27 | 1995-01-31 | Kanao; Shiro | Pressure-resistant helical corrugated pipe |
| US20070102891A1 (en) * | 2003-04-03 | 2007-05-10 | Shigeru Habuki | Foot movable mechanism and brake in skating |
| US20100050724A1 (en) * | 2006-07-27 | 2010-03-04 | Allan Stikeleather | Metallic Strip and Methods and Structures Incorporating the Same |
| US20110259040A1 (en) * | 2008-11-17 | 2011-10-27 | Industrie Ilpea S.P.A. | Refrigeration circuit |
-
0
- US US494972D patent/US494972A/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3154311A (en) * | 1961-10-03 | 1964-10-27 | Gen Electric | Sealing means |
| US5284185A (en) * | 1988-12-27 | 1994-02-08 | Shiro Kanao | Pressure-resistant helical corrugated pipe and method of producing same |
| US5385174A (en) * | 1988-12-27 | 1995-01-31 | Kanao; Shiro | Pressure-resistant helical corrugated pipe |
| US20070102891A1 (en) * | 2003-04-03 | 2007-05-10 | Shigeru Habuki | Foot movable mechanism and brake in skating |
| US20100050724A1 (en) * | 2006-07-27 | 2010-03-04 | Allan Stikeleather | Metallic Strip and Methods and Structures Incorporating the Same |
| US7726345B2 (en) | 2006-07-27 | 2010-06-01 | Allan Stikeleather | Metallic strip and methods and structures incorporating the same |
| US8387426B2 (en) | 2006-07-27 | 2013-03-05 | Allan Stikeleather | Metallic strip and methods and structures incorporating the same |
| US20110259040A1 (en) * | 2008-11-17 | 2011-10-27 | Industrie Ilpea S.P.A. | Refrigeration circuit |
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