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US1133070A - Flexible interlocking spring-tube. - Google Patents

Flexible interlocking spring-tube. Download PDF

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Publication number
US1133070A
US1133070A US1914857607A US1133070A US 1133070 A US1133070 A US 1133070A US 1914857607 A US1914857607 A US 1914857607A US 1133070 A US1133070 A US 1133070A
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Prior art keywords
tube
coil
interlocking
enlarged
coils
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Expired - Lifetime
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Lawrence A Subers
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Lawrence A Subers
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00Hoses, i.e. flexible pipes
    • F16L11/14Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics
    • F16L11/16Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics wound from profiled strips or bands

Description

L. A. SUBERS.

FLEXIBLE INTERLOOKING SPRING TUBE. APPLICATION rum: MAY12,1918. RENEWED AUG.X9,1914.

Patented Mar. 23, 1915.

nawnnncn A. scams, or onnvnmm), OHIO.

FLEXIBLE INTERLOCKING SPRING-TUBE.

Application filed may 12, 1913, Serial No. 767,200. Renewed August Interlocking Spring-Tube, of'which I hereby declare the following to be a full, clear, and exactdescription, such as will enable others skilled in the art to which it appertains to make and use the same.

The object of the invention is to provide a flexible spring tube or casing provided with interlocking coils which can also be employed as a simple and easily applied form of armor for hose pipe, such as a pneumatic'orrailway brake hose, and a pressure or suction hose of all sorts.

.The invention also provides a. form of tube composed of overlapping and interlocking elements and in "hioh the joints are practically .waternnd dust proof.

The invention comprises the combination of the ,coils or turns of a spirally wound wire'or band enlarged and having preferably rounded edges arranged at ditfcrent levels, and in which the enlarged edges are I connected by a thinner web or member, with an adjoining coil or turn similar in shape and C(ll'lSillllCtl'OIl and in which the ei'ilarged edges interlock with those of the first named coil or turn. All the interlocking coils or turns may be component parts of one integral coil, or the tube may be composed of a multiple number of coils. The invention comprises the combination and arrangement of parts to permit of a limited amount of stretching and compres sion of the coils upon each other, and further consists in the details of construction, hereinafter described and shown in the drawings, and specilically pointed out in the claims. H

In the accompanying drawings Figure 1 is a longitudinal section of a hose incased by this tubular armor and bent into a curve h owing the action of the component parts of the armor u on each other in expansion and contraction; Fig. 2 is a side elevation of a portion of the interlocking spring tube showing a method of formation and of constructing the interlocking joint; l ig. 3 is an enlarged section of a portion of one side of a straight piece of interlocking spring tube showing a portion thereof completed; Fig. l shows the interlocking spring tubc Specification of Letters Patent.

' interlocking with the same, and

side of the curve and to outer side oi the curve, but the tube as a Patented Mar. 23, 1915., 19, 1914. Serial No. 857,607.-

' as applied to the exterior and interior of a.

flexible hose fabric.

In these views Ads a band of metal or other suitable substance preferably formed with a body or stem portion 1 having forked extremities 2, 2, integrally connected together. The extreme edges of the body portion and forked extremities are enlarged at 3, 4: and 4, respcctively'arrd also pref-' erably smoothly rounded to permit (if the easy action of one coil upon anotherl 'when they are associated together in the.completed tube In Fig. 3 the manner of interlocking the coils together is shown clearly, the enlarged edge of the body portion of one coil being inclosed between the forks of the next adjacent coil, thus allowing only a predetermined amount of lateral or longitudinal separation of the coils. The enlarged extremities 4, 4', are shown upon different levels, and each extremity 4, l is at a different level from the extremity 3, which is inserted between the extremities 4, 4:, thus preventing the complete separation of the coils, under working conditions.

.A limited movement longitudinally of the hose is permitted by giving a predetermined width to the web forming the body portion 1, and to the webs forming the forks 2 and 2. This limited movement is essential to permit the flexure of the hose as shown in Fig. 1, the coils being permitted to approach closely to each other on the inner separate at the whole is only slightly extensible as predetermincd accmrding to the amount of flexibilit v required, nor can the coils become entirely separated, since it is not desirable. to have the tube stretch unduly or torted in such a. manner as to be impracticable or decrease the life of the hose or other substance inclosed therein.

The bands with their enlarged .ends are magnified iii-size in the drawings and the actual bands can ordinarily be constructed by drawing them through dies having openings of suitable shape, or by passing through suitablv shaped pressure rolls. AtC and D,

Figs. 2 and a form of F shape is shown which is suitable for this purpose. The edges and 4 lie in their proper positions become dis loo . 3 upon the adjacent coil, While the coils being wound upon the mandrel, as shown is dotted lines in 3. In l ig. 2 l5 is si'icli e mandrel and the edge 4: is shown at G being formed over the edge 3 upon the body portion. in Fig. 4.: the tube is shown applied as e protective casing both to the interior and exterior of o llexible hose or other suitable materi l which may thus be used for section purpo the hose fabric being protected by the. inner flexible metallic tube from the matter passing therethrougli, and the outer ornior shielding the exterior of the hose from injury. 'lhis inner :liexible tube also serves to prevent collapsco't' the intermediate fabric when in service for suction purposes,

1 do not confine myself to the use of this flexible poses clone since by the introduction oif suitable elastic and adhesive substance Yen at H in Fig". 5, among the interlockcoils ri. thereof, the tube might constio complete tube or hose in itself with lin' or eorering of any sortv A (:lizin'l lined between the forks in euch coil .nich the said elastic substance is,in-

closed. Tl his material can be introduced l are being; constructed upon the mandrel.

The above described coils being made of spring material will always resume their origimrl positions when the tube is elongated or flexed, and hence no cramping or binding of the ports on themselves will occur under ordinary conditions.

Having thus described the invention Whzit l cliiini new and desire to secure by Lettors Patent is:

i In 21, flexible armor, a coiled bend hav- Webbed body portion with an en-- i terlocliing spring tube for zirinor one the aforesaid chamber While the coils lerged single edge, and an integral webbed l'orli, extending from the opposite edge thereof, said fork provided with enlarged edges the enlarged edges of the fork in one spiral coil ot'suid bend inclosing betvwen .tlieni the enlarged edge of the webbed body portion of the adjacent coil. V

5%. .ln :1 flexible inetnl armor, a coiled bond comprising a tnvebbed body portion and fol-lied eiitreiiiities, and enlarged edges for said webbed body and l'iorhetl extremities, the said torkeih extremities inclosing; the body portion of the adjacent coil between them, said enlargedsedges of said iorlied portions of one coil adopted to emerge and ioclose the enlarged edge of the bod portion oi the adjacent coil. 9

in it flexible, interlocking spring tube, a series of interlocking coils, each coil pro- Yided with one enlarged edge, and with one lorlrcd edge having enl: rged extremities ie enlarged edge of the fork on the ed, oi one coil inclosing the ciilnrged ct or he next adjacent coil, the said foil; ormin chamber and an elastic substzu'icc inclos said chal'nber.

l. ln it ilexible spring tube, {1 coiled bond boring a stem edge and liorlced or composed of thin. metal, said ed; rnhii ill) their extremities, the ciilniged to.

edges of each spiral coil inclosing the lzu stein edge oi: the ndpicent-coil and forming an inclosure, end an elastic sob stance in said inclosiire in which v l st in edge is embedded.

.ln testimony whereof, l hereunto any hand this eighth day of May 1912 Li ll' lllilifltflfl is.

in presence o;E-

lu'nxss'r lilosmiit, ADAM JldEYER

US1133070A 1914-08-19 1914-08-19 Flexible interlocking spring-tube. Expired - Lifetime US1133070A (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1101877B (en) * 1958-02-21 1961-03-09 Heinkel Flugzeugbau Gmbh E Flexible elbow, particularly for jet engines
US3173172A (en) * 1961-06-19 1965-03-16 Pasquetti Glauco Machine for manufacturing flexible tubular bodies
US3199541A (en) * 1963-04-03 1965-08-10 Flexible Tubing Corp Interlocking strip flexible hose
US3687169A (en) * 1970-07-16 1972-08-29 Inst Francais Du Petrole Flexible pipe for conveying fluids, particularly hydrocarbons
DE2361162A1 (en) * 1972-12-08 1974-06-12 Inst Francais Du Petrole Density flexible circuit
US5228479A (en) * 1991-06-17 1993-07-20 Tru-Flex Metal Hose Corporation Multi-layered flexible piping and method and machine for forming same
US5494319A (en) * 1994-06-06 1996-02-27 Tru-Flex Metal Hose Corporation Sleeved flexible metal piping, method of manufacturing same and flue system application of same
US5538294A (en) * 1994-11-01 1996-07-23 Tru-Flex Metal Hose Corporation Corrugated flexible metal piping assembly
US5769463A (en) * 1996-07-05 1998-06-23 Tru-Flex Metal Hose Corp. Heat and vibration resistant flexible metal hose assembly
US20090099420A1 (en) * 2007-10-11 2009-04-16 Neoguide Systems, Inc. System for managing bowden cables in articulating instruments

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1101877B (en) * 1958-02-21 1961-03-09 Heinkel Flugzeugbau Gmbh E Flexible elbow, particularly for jet engines
US3173172A (en) * 1961-06-19 1965-03-16 Pasquetti Glauco Machine for manufacturing flexible tubular bodies
US3199541A (en) * 1963-04-03 1965-08-10 Flexible Tubing Corp Interlocking strip flexible hose
US3687169A (en) * 1970-07-16 1972-08-29 Inst Francais Du Petrole Flexible pipe for conveying fluids, particularly hydrocarbons
DE2361162A1 (en) * 1972-12-08 1974-06-12 Inst Francais Du Petrole Density flexible circuit
US5228479A (en) * 1991-06-17 1993-07-20 Tru-Flex Metal Hose Corporation Multi-layered flexible piping and method and machine for forming same
US5494319A (en) * 1994-06-06 1996-02-27 Tru-Flex Metal Hose Corporation Sleeved flexible metal piping, method of manufacturing same and flue system application of same
US5538294A (en) * 1994-11-01 1996-07-23 Tru-Flex Metal Hose Corporation Corrugated flexible metal piping assembly
US5769463A (en) * 1996-07-05 1998-06-23 Tru-Flex Metal Hose Corp. Heat and vibration resistant flexible metal hose assembly
US20090099420A1 (en) * 2007-10-11 2009-04-16 Neoguide Systems, Inc. System for managing bowden cables in articulating instruments
US9220398B2 (en) * 2007-10-11 2015-12-29 Intuitive Surgical Operations, Inc. System for managing Bowden cables in articulating instruments

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