US2641303A - Method of making flexible hose - Google Patents

Method of making flexible hose Download PDF

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Publication number
US2641303A
US2641303A US215945A US21594551A US2641303A US 2641303 A US2641303 A US 2641303A US 215945 A US215945 A US 215945A US 21594551 A US21594551 A US 21594551A US 2641303 A US2641303 A US 2641303A
Authority
US
United States
Prior art keywords
tube
cord
coils
mandrel
wire
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
US215945A
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English (en)
Inventor
John E Vance
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.)
Hoover Co
Original Assignee
Hoover Co
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
Priority to GB24684/48A priority Critical patent/GB648562A/en
Priority claimed from US98920A external-priority patent/US2550099A/en
Priority to FR993619D priority patent/FR993619A/fr
Priority to NL148347A priority patent/NL80419C/xx
Priority to GB14189/50A priority patent/GB673043A/en
Priority to FR60839D priority patent/FR60839E/fr
Application filed by Hoover Co filed Critical Hoover Co
Priority to US215945A priority patent/US2641303A/en
Application granted granted Critical
Publication of US2641303A publication Critical patent/US2641303A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/001—Pipes; Pipe joints
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/24—Hoses or pipes; Hose or pipe couplings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/22—Corrugating
    • B29C53/30—Corrugating of tubes
    • B29C53/305—Corrugating of tubes using a cording process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/581—Winding and joining, e.g. winding spirally helically using sheets or strips consisting principally of plastics material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/80—Component parts, details or accessories; Auxiliary operations
    • B29C53/84—Heating or cooling
    • B29C53/845—Heating or cooling especially adapted for winding and joining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/18—Pleated or corrugated hoses
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B11/00—Oxides or oxyacids of halogens; Salts thereof
    • C01B11/02—Oxides of chlorine
    • C01B11/022—Chlorine dioxide (ClO2)
    • C01B11/023—Preparation from chlorites or chlorates
    • 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
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/11—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall
    • F16L11/115—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall having reinforcements not embedded in the wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00—Use of unspecified rubbers as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/06—PVC, i.e. polyvinylchloride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2227/00—Use of polyvinylhalogenides or derivatives thereof as reinforcement
    • B29K2227/06—PVC, i.e. polyvinylchloride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/005—Hoses, i.e. flexible

Definitions

  • the presentapp-lica-tion is e, division of my "application; Serial No. 98-,9'20gfileqilune le, 19'4'9, Patent No. 2,550,099;datednp-ril-z l, 19511 7 parent application-claims the hose p'er se -while
  • the tube preferably extendsvbeyend ltneends of; the wireand vinyl cordzancl turned ..;backwardlyeovert-the tube- .and.,viny1 cord solasstmperr ;mit:an-attaching fitting to be applied.
  • Figure -.1 -. shows Jeschematic view ofsa machine :forwspacingsthe wireicoilssonrthe mandrel-anoint winding the vinyl cord about the tube;
  • Figure 2 is a detailed view showing the operation of the spacing nut
  • Figure 3 is a plan view of the spacing device showing how it is mounted on the machine.
  • Figure 4 is a longitudinal cross-sectional view through the tube of this invention showing one form of an attachment coupling applied thereto.
  • the hose of this invention comprises an inner spirally wound spring wire stressed axially and spirally from its normal unstressed state, an elastomeric thermoplastic together and to the support 48 at 50, the lower vinyl tube l l positioned thereover and forced between the convolutions of the wire ID by a spirally wound elastomeric thermoplastic vinyl cord l2.
  • the end connection for the suitable form but as shown in Fig. 4 comprises an inner swivel tube l3, an outer swivel tube l4 having a swivel connection with the inner tube [3 generally indicated by the reference numeral l5 in the form of inwardly pressed annular grooves in the tubes.
  • the end N5 of the wire In rests in the groove of the outer swivel tube l4.
  • the few end turns of the wire ID are secured to the tube l4 by a pressure sensitive tape l1 spirally wound over the wire. Near its end the tube II is anchored to the tube l4 over the end l6 of wire 10 by waxed threads 8.
  • the hose of Fig. 4 is formed by any suitable apparatus such as the machine of Fig. 1 generally indicated by the reference numeral 30, similar to a turning lathe.
  • the machine com prises a bed plate 3
  • the driving mechanism for the head stock 32 and for the lead screw 34 are geared to both in a manner similar to an ordinary turning lathe.
  • a mandrel 31 is rotated by the head stock 32 and is rotatably mounted by the tail stock 33.
  • the carriage 35 carries a coil spacing device generally indicated by the reference numeral 40,
  • for carrying a reel of vinyl cord, a tensioning pulley 42, and a cord tension measuring device 43.
  • Carriage 35 is also provided with suitable guide pulleys to guide the cord from the reel 4
  • the tension measuring device 43 includes a clocklike dial and hand which register the tension on the cord to constantly inform the operator of the tension applied. It has been found in the example given that a tension of 56 to 64 ounces is satisfactory for the conditions specified.
  • the spring spacing device includes a sort of nut 45 split axially to form two halves 46 and 41, the lower half 46 being secured to the traveling carriage 35 by means of a supporting hose may take any half 46 being slotted at 5i on the side opposite the pivot 50 to receive a clamping bolt 52 pivoted to the upper half as shown in Fig. 3.
  • the carriage 35 may also carry a solvent applying dispenser in the form of a container 53 as shown in Fig. 1 having a valved tube leading to apoint immediately above the mandrel at a point a few turns ahead of where the cord is wrapped about the mandrel.
  • the solvent used may be a 50-50 by volume mixture of toluene and methyl ethyl ketone.
  • a steel spring wire of suitable diameter is spirally wound into a coil of substantially the same internal diameter as the diameter of mandrel 3! and with a pitch slightl less than that of the wire I0 in the finished hose.
  • the wire is preferably wound on a mandrel slightly smaller than the mandrel 31 so that when it is released the coils will expand to the proper diameter and pitch.
  • Coupling sleeves similar to the sleeves l3 and I4 are positioned on the mandrel at the head stock end thereof.
  • the wire coil is placed on the mandrel 31, which in practice is approximately 1% inches in diameter, the sleeves l3 and I4 slid onto the tail stock end of the mandrel beneath the wire coils with the end coil [5 posi-- tioned in the peripheral groove l5, it being noted, Fig. 4, thatthe inside diameter of the inner end of tube [4 is substantially the same as the inside diameter of tube [3 whereby they can be positioned on the mandrel.
  • the wire In is taped to the sleeve M by the pressure sensitive tape I! at the tail stock end thereof and the sleeves l3 and I4 anchored against rotation relative to the mandrel.
  • the turns of the wire on the sleeve and the first few turns on the mandrel are suitably spaced by hand or otherwise and the spacing nut 45 arranged over the turns with the wire lying" in the spiral grooves 49. It has been found in practice that the pitch of the spiral grooves in the nut 45 should be about 0.286 inch when the normal free pitch of the wire coils is inch.
  • the diameter of the spacing nut and the depth of the grooves 49 is such that the nut will grip the wire coils quite firmly when the bolt 52 is clamped.
  • the clutch 36 is manually operated to engage the carriage 35 with the lead screw 34 and the head stock 32 rotated forward or counterclockwise as viewed from the tail stock end.
  • 'Iheencl""couplings' 2I may then be applied-etc ameter of a size' suitable' to slide over 'the'coiled'i flo each end of the 'hose' imany" suitable manner,
  • a plastic tube having a wall thickness of 0.026 inch, formed of elastomeric thermoplastic vinyl having a minimum tensile strength of 2,000 pounds per square inch at 80 F. is suitable.
  • the tail stock 33 is then reengaged with the mandrel 31, the first few coils of the cord I2 wound over the tube II and sleeves at the head stock end of the mandrel midway between the convolutions of the wire I0.
  • the end of the tube H is also rigidly secured to the sleeves and the wire It by means of waxed threads I6.
  • the first few turns of the cord I2 and threads I8 are taped to the tube II by pressure sensitive tape I9.
  • the tension on the cord is properly adjusted by adjusting the tensioning pulley 42, which tension will be registered on the tension measuring device 43.
  • the clutch 36 is then manually operated to engage the carriage with the lead screw 34 and the head stock 32 rotated backwardly or clockwise as viewed from the tail stock end so as to spirally wind the cord over the tube I I midway between the convolutions of the reinforcing wire Ill from the head stock end to the tail stock end of the mandrel 31.
  • The-"end coils of the cord are then taped to the tube II by a pressure sensitive tape I9.
  • the valve in the solvent dispensing tube is properly adjusted to apply the proper quantity of solvent two or three coils ahead of the cord as the cord is wound about the tube.
  • thermoplastic materials as 'such ""areold and well known andaremade by-mixing a thermoplastiwresin' with a "plasticizer. ""At ordinary temperatures they are] slightlyfelastic "in that the'm'aterialcan-be stretchedr'somewhat 'and”will return wh'en'release'd. Ifthe material remains in 'istretch'ed condition 'iit' will "remain under a definite'tensi'on.
  • the method of forming a flexible hose comprising, winding a spring wire into a cylindrical spiral having a given pitch and diameter, applying a stress axially and circumferentially successively to the coils of said spring from one end to the other to increase the pitch and number of the coils in said spiral, holding the coils of said spiral in their stressed position while applying an elastomeric thermoplastic tube over said coils having the same internal diameter as the unstressed internal diameter of said coils and spirally winding a tensioned elastomeric thermoplastic cord over said tube between the coils of said spiral while it remains in its stressed condition, anchoring the ends of said spiral coils and tube to each other while under their stressed condition and releasing the stress on said coils to place said cord under a circumferential stress, said tube under an axial stress,-said spring remaining tensioned axially and circumferentially.
  • the method according to claim 7 includin the step of applying a solvent for the tube'and cord to the tube beneath the cord.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
US215945A 1949-06-14 1951-03-16 Method of making flexible hose Expired - Lifetime US2641303A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB24684/48A GB648562A (en) 1949-06-14 1948-09-21 Improvements relating to flexible tubing
FR993619D FR993619A (fr) 1949-06-14 1949-08-19 Perfectionnements aux tuyaux flexibles
NL148347A NL80419C (en, 2012) 1949-06-14 1949-08-26
GB14189/50A GB673043A (en) 1949-06-14 1950-06-07 Improvements relating to flexible tubing
FR60839D FR60839E (fr) 1949-06-14 1950-06-13 Perfectionnements aux tuyaux flexibles
US215945A US2641303A (en) 1949-06-14 1951-03-16 Method of making flexible hose

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US98920A US2550099A (en) 1949-06-14 1949-06-14 Flexible hose for suction cleaners
US215945A US2641303A (en) 1949-06-14 1951-03-16 Method of making flexible hose

Publications (1)

Publication Number Publication Date
US2641303A true US2641303A (en) 1953-06-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
US215945A Expired - Lifetime US2641303A (en) 1949-06-14 1951-03-16 Method of making flexible hose

Country Status (4)

Country Link
US (1) US2641303A (en, 2012)
FR (2) FR993619A (en, 2012)
GB (2) GB648562A (en, 2012)
NL (1) NL80419C (en, 2012)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2787917A (en) * 1955-07-05 1957-04-09 Fox River Mfg Company Push-pull control and transmission cable
US2798508A (en) * 1954-12-08 1957-07-09 Acme Hamilton Mfg Corp Flexible hose and method of making same
US2859775A (en) * 1955-02-02 1958-11-11 Hoover Co Flexible hose
CN116394527A (zh) * 2023-06-08 2023-07-07 复星科技集团有限公司 一种注胶成型系统的供料机构及注胶成型系统

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2878012A (en) * 1954-07-15 1959-03-17 Rockwell Standard Co Bellows damper
US2917102A (en) * 1955-02-25 1959-12-15 Us Rubber Co Method of making hose with sealing rings attached at each end
DE1187078B (de) * 1959-05-26 1965-02-11 Montaplast G M B H Befestigung eines in eine starre Huelse eingeschobenen elastischen Schlauches
DE1164172B (de) * 1960-07-27 1964-02-27 Bergin G M B H Verfahren und Vorrichtung zum Einpressen eines Schlauchendes zwischen einer Aussenhuelse und einer eingesteckten Presshuelse
DE1229799B (de) * 1961-10-03 1966-12-01 Ewald Milde Dipl Ing Verfahren zum Einbinden von Schlauchtuellen in Schlaeuchen
BE635043A (en, 2012) * 1962-07-16
US3180364A (en) * 1963-02-06 1965-04-27 Electrolux Ab Suction cleaner hose
US3318620A (en) * 1965-10-22 1967-05-09 Roy H Cullen Hose end coupling
GB1543586A (en) * 1978-07-24 1979-04-04 Whitworth B Flexible tube
DE3133837A1 (de) * 1981-08-27 1983-03-10 Gardena Kress + Kastner Gmbh, 7900 Ulm Loesbare anschlusseinrichtung fuer einen schlauch an einem stutzen
AU636419B2 (en) * 1990-06-25 1993-04-29 Iplex Pipelines Australia Pty Limited Pipe fitting
CN101137841B (zh) 2005-02-03 2013-01-09 维斯塔斯风力系统有限公司 制造风轮机叶片壳体构件的方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2160371A (en) * 1936-12-05 1939-05-30 Resistoflex Corp Process for applying coatings to hollow bodies
US2176762A (en) * 1937-07-15 1939-10-17 R H Schwartz Rubber Corp Method of making flexible hose
US2262861A (en) * 1939-05-16 1941-11-18 Carbide & Carbon Chem Corp Composite article
US2377316A (en) * 1944-02-22 1945-06-05 Armstrong Cork Co Long draft apron
US2560369A (en) * 1946-03-18 1951-07-10 Roberts Robert Eldon Method of making flexible tubes

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2160371A (en) * 1936-12-05 1939-05-30 Resistoflex Corp Process for applying coatings to hollow bodies
US2176762A (en) * 1937-07-15 1939-10-17 R H Schwartz Rubber Corp Method of making flexible hose
US2262861A (en) * 1939-05-16 1941-11-18 Carbide & Carbon Chem Corp Composite article
US2377316A (en) * 1944-02-22 1945-06-05 Armstrong Cork Co Long draft apron
US2560369A (en) * 1946-03-18 1951-07-10 Roberts Robert Eldon Method of making flexible tubes

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2798508A (en) * 1954-12-08 1957-07-09 Acme Hamilton Mfg Corp Flexible hose and method of making same
US2859775A (en) * 1955-02-02 1958-11-11 Hoover Co Flexible hose
US2787917A (en) * 1955-07-05 1957-04-09 Fox River Mfg Company Push-pull control and transmission cable
CN116394527A (zh) * 2023-06-08 2023-07-07 复星科技集团有限公司 一种注胶成型系统的供料机构及注胶成型系统
CN116394527B (zh) * 2023-06-08 2023-08-22 复星科技集团有限公司 一种注胶成型系统的供料机构及注胶成型系统

Also Published As

Publication number Publication date
NL80419C (en, 2012) 1956-02-15
GB648562A (en) 1951-01-10
FR60839E (fr) 1955-01-31
GB673043A (en) 1952-05-28
FR993619A (fr) 1951-11-05

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