US1053394A - Flexible tubing. - Google Patents
Flexible tubing. Download PDFInfo
- Publication number
- US1053394A US1053394A US60393511A US1911603935A US1053394A US 1053394 A US1053394 A US 1053394A US 60393511 A US60393511 A US 60393511A US 1911603935 A US1911603935 A US 1911603935A US 1053394 A US1053394 A US 1053394A
- Authority
- US
- United States
- Prior art keywords
- wire
- tubing
- flexible tubing
- flexible
- tube
- 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
- 238000005452 bending Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C1/00—Flexible shafts; Mechanical means for transmitting movement in a flexible sheathing
- F16C1/26—Construction of guiding-sheathings or guiding-tubes
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C1/00—Flexible shafts; Mechanical means for transmitting movement in a flexible sheathing
- F16C1/02—Flexible shafts; Mechanical means for transmitting movement in a flexible sheathing for conveying rotary movements
- F16C1/06—Flexible shafts; Mechanical means for transmitting movement in a flexible sheathing for conveying rotary movements with guiding sheathing, tube or box
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/20—Control lever and linkage systems
- Y10T74/20396—Hand operated
- Y10T74/20402—Flexible transmitter [e.g., Bowden cable]
- Y10T74/20456—Specific cable or sheath structure
Definitions
- Figure 1 is an elevation, partly in section of a portion of my improved tubing showing the same straight;
- Fig. 2 is a similar view showing the flexible tube temporarily held in a curved condition;
- Fig. 3 is an enlarged detail, longitudinal section, of a portion of the tube.
- the tubing comprises an inner coil of wire A, the coils of which are substantially semicircularin cross sect-ion, with the flat surface thereof forming the interior wall of the tubing.
- a second wire B is coiled about the wire A on the outside thereof, the coils of the wire B overlapping and extending between the coils of the wire A so as to close the spaces therebetween.
- the coils of the outside wire B have an ogee shape in cross section as clearly shown in the drawings and are provided with convex surfaces at which in the normal position of the tube contact with the convex surfaces 5 of the inner coil A tangentially, as in Fig. 3.
- the said outer wire B is further provided with concave Specificatiori of Letters Yatent.
- portions 03 which extend or flare out from the convex. portions aand extend over and overlap, but normally do not engage the sur faces 6 of the inner coil A.
- the edges e e ofadjacent coils of the outer wire B when the tubing is in its straight condition, nearly meet and practically cover up the inner wire A, the spaces between them controlling-the amount of curvature which may be. given to the structure.
- the outer wire therefore substantially conceals said inner wire and produces, a more desirable finish than if the inner wire were more exposed.
- the convolutions of the inner wire are preferably farther apart than those of the outer wire, so that they will not contact on bending as shown in Fig. 2. This .prevents the inner wire when bent from crowding the outer the tube and prevent cramping of the,inte-.
- the coils of the outer wire B are so proportioned that the normal bending limit of the tube is reached when the edges 6 e contact.
- the inner wire A on the outer periphery enters the concave portions 03 of the outer wire, while on the inner periphery it rides on the convex portions a of the wire B. This results in bringing the wire A nearer the outer'circumference f of the bent tubing and farther away from the inner circumference 9 than it was in a straight position.
- the inner wire assumes a position which is eccentric to the outer wire.
- the outer wire in this case being preferably made of a material such as brass or steel and having a greater amount of resiliency than the inner wire.
- My invention thus provides a flexible tubing which is particularly adapted for use as a casing for flexible shafting for speedometers, and may also be used as a conduit in which the usual interior pressure is about 20 lbs. to the square inch, the fiat inner surface of the inner wire providing a smooth inner bore of maximum diameter in any given size of tubing.
- a flexible tubing comprising an inner coil and an outer coil located between the convolutions of said inner coil, the inner surfaces In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.
Description
"NITED STATES PATENT OFFICE.
HENRY'S. HUBBELL, OF ASHBURNHAM, MASSACHUSETTS, ASSIG-NOR TO T. R. ALMOND MANUFACTURING 00., OF ASHBURNHAM, MASSACHUSETTS, A CORPORATION OF NEW YORK.
FLEXIBLE TUBING.
To all whom it may concern:
Be it known that I, HENRY S. HUBBELL, a citizen of the United States, and resident of Ashburnham, county of Worcester, and State of Massachusetts, have invented certain new ately straighten itself out and which at all times when bent will take a curve of the greatest possible radius so as not to cramp the flexible shaft which the tubing incases.
In other words, in my improved construction it is impossible to bend the flexible tubing sufficiently to cramp the shaft inside thereof unless an undue force is exercised.
My invention will be fully described hereinafter and the features of novelty will be pointed out in the appended claim.
Reference is to be had to the accompanying drawings in which Figure 1 is an elevation, partly in section of a portion of my improved tubing showing the same straight; Fig. 2 is a similar view showing the flexible tube temporarily held in a curved condition; and Fig. 3 is an enlarged detail, longitudinal section, of a portion of the tube.
The tubing comprises an inner coil of wire A, the coils of which are substantially semicircularin cross sect-ion, with the flat surface thereof forming the interior wall of the tubing. A second wire B is coiled about the wire A on the outside thereof, the coils of the wire B overlapping and extending between the coils of the wire A so as to close the spaces therebetween. The coils of the outside wire B have an ogee shape in cross section as clearly shown in the drawings and are provided with convex surfaces at which in the normal position of the tube contact with the convex surfaces 5 of the inner coil A tangentially, as in Fig. 3. The said outer wire B is further provided with concave Specificatiori of Letters Yatent.
Application filed January 21, 1911.
Patented Feb. 18, 1913.
Serial No. 603,935.
portions 03 which extend or flare out from the convex. portions aand extend over and overlap, but normally do not engage the sur faces 6 of the inner coil A. The edges e e ofadjacent coils of the outer wire B, when the tubing is in its straight condition, nearly meet and practically cover up the inner wire A, the spaces between them controlling-the amount of curvature which may be. given to the structure. The outer wire therefore substantially conceals said inner wire and produces, a more desirable finish than if the inner wire were more exposed. The convolutions of the inner wire are preferably farther apart than those of the outer wire, so that they will not contact on bending as shown in Fig. 2. This .prevents the inner wire when bent from crowding the outer the tube and prevent cramping of the,inte-.
rior flexible shaft. In other words, the coils of the outer wire B are so proportioned that the normal bending limit of the tube is reached when the edges 6 e contact. During this bending, the inner wire A on the outer periphery enters the concave portions 03 of the outer wire, while on the inner periphery it rides on the convex portions a of the wire B. This results in bringing the wire A nearer the outer'circumference f of the bent tubing and farther away from the inner circumference 9 than it was in a straight position. In other words when bent, as ir ig. 2 the inner wire assumes a position which is eccentric to the outer wire. 'All of which causes the tube to receive a tendency when bent to straighten itself as soon as released from bending effort. The foregoing construction also insures a tight joint or connectain amount of spring or resiliency the outer wire in this case being preferably made of a material such as brass or steel and having a greater amount of resiliency than the inner wire.
My invention thus provides a flexible tubing which is particularly adapted for use as a casing for flexible shafting for speedometers, and may also be used as a conduit in which the usual interior pressure is about 20 lbs. to the square inch, the fiat inner surface of the inner wire providing a smooth inner bore of maximum diameter in any given size of tubing.
Further in my improved construction, as already stated, it is impossible to cramp the flexible interior shaft through the bending oftge tube unless a destructive force is applle Y My improved tubing under all conditions is also grease tight so that the inner shaft may be at all times maintained in a thoroughly lubricated condition.
Various modifications may be made Within the scope of the claim Without departing from the spirit of my invention.
I claim as my invention-:-
A flexible tubing comprising an inner coil and an outer coil located between the convolutions of said inner coil, the inner surfaces In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.
HENRY s. HUBBELL.
Witnesses:
C. A. HUBBELL,
WALTON B. WHITNEY.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US60393511A US1053394A (en) | 1911-01-21 | 1911-01-21 | Flexible tubing. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US60393511A US1053394A (en) | 1911-01-21 | 1911-01-21 | Flexible tubing. |
Publications (1)
Publication Number | Publication Date |
---|---|
US1053394A true US1053394A (en) | 1913-02-18 |
Family
ID=3121654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US60393511A Expired - Lifetime US1053394A (en) | 1911-01-21 | 1911-01-21 | Flexible tubing. |
Country Status (1)
Country | Link |
---|---|
US (1) | US1053394A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2558763A (en) * | 1946-02-21 | 1951-07-03 | Norman E Lee | Flexible member |
US3152459A (en) * | 1963-02-11 | 1964-10-13 | Stewart Warner Corp | Interlocking flexible casing |
US3240082A (en) * | 1963-02-18 | 1966-03-15 | American Chain & Cable Co | Push-pull cable with reinforced core element |
US4213485A (en) * | 1977-07-28 | 1980-07-22 | Dunlop Limited | Hose |
US6065501A (en) * | 1989-06-30 | 2000-05-23 | Institute Francais Du Petrole | Flexible tube having at least one elongated reinforcing element with a T-shaped profile |
US20040089362A1 (en) * | 2002-11-12 | 2004-05-13 | Bakker Emile A. M. | Single wire cable conduit |
US20060157134A1 (en) * | 2003-05-30 | 2006-07-20 | Kokusan Rasenkan Co,. Ltd. | Flexible pipe and method for producing the same |
DE10123848B4 (en) * | 2000-05-17 | 2012-06-14 | Olympus Corporation | Endoscopic instrument |
US20130112307A1 (en) * | 2010-05-12 | 2013-05-09 | National Oilwell Varco Denmark I/S | Unbonded flexible pipe |
US20140261841A1 (en) * | 2013-03-14 | 2014-09-18 | Robert Bosch Gmbh | Kink resistant hose system with coil layer and method of manufacturing |
-
1911
- 1911-01-21 US US60393511A patent/US1053394A/en not_active Expired - Lifetime
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2558763A (en) * | 1946-02-21 | 1951-07-03 | Norman E Lee | Flexible member |
US3152459A (en) * | 1963-02-11 | 1964-10-13 | Stewart Warner Corp | Interlocking flexible casing |
US3240082A (en) * | 1963-02-18 | 1966-03-15 | American Chain & Cable Co | Push-pull cable with reinforced core element |
US4213485A (en) * | 1977-07-28 | 1980-07-22 | Dunlop Limited | Hose |
US6065501A (en) * | 1989-06-30 | 2000-05-23 | Institute Francais Du Petrole | Flexible tube having at least one elongated reinforcing element with a T-shaped profile |
DE10123848B4 (en) * | 2000-05-17 | 2012-06-14 | Olympus Corporation | Endoscopic instrument |
US6827108B2 (en) * | 2002-11-12 | 2004-12-07 | Daimlerchrysler Corporation | Single wire cable conduit |
US20040089362A1 (en) * | 2002-11-12 | 2004-05-13 | Bakker Emile A. M. | Single wire cable conduit |
US20060157134A1 (en) * | 2003-05-30 | 2006-07-20 | Kokusan Rasenkan Co,. Ltd. | Flexible pipe and method for producing the same |
US7219700B2 (en) * | 2003-05-30 | 2007-05-22 | Kokusan Rasenkan Co., Ltd. | Flexible pipe and method for producing the same |
US20130112307A1 (en) * | 2010-05-12 | 2013-05-09 | National Oilwell Varco Denmark I/S | Unbonded flexible pipe |
US9395022B2 (en) * | 2010-05-12 | 2016-07-19 | National Oilwell Varco Denmark I/S | Unbonded flexible pipe |
US20140261841A1 (en) * | 2013-03-14 | 2014-09-18 | Robert Bosch Gmbh | Kink resistant hose system with coil layer and method of manufacturing |
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