US2558763A - Flexible member - Google Patents

Flexible member Download PDF

Info

Publication number
US2558763A
US2558763A US649448A US64944846A US2558763A US 2558763 A US2558763 A US 2558763A US 649448 A US649448 A US 649448A US 64944846 A US64944846 A US 64944846A US 2558763 A US2558763 A US 2558763A
Authority
US
United States
Prior art keywords
flexible
spring
turns
sockets
flanges
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
US649448A
Inventor
Norman E Lee
Original Assignee
Norman E Lee
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 Norman E Lee filed Critical Norman E Lee
Priority to US649448A priority Critical patent/US2558763A/en
Application granted granted Critical
Publication of US2558763A publication Critical patent/US2558763A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/08Means for collapsing antennas or parts thereof
    • H01Q1/085Flexible aerials; Whip aerials with a resilient base
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00Joints and connections
    • Y10T403/45Flexibly connected rigid members
    • Y10T403/459Helical spring type coupling

Description

N. E. LEE
FLEXIBLE MEMBER `July 3, 1951 Filed Feb. 21, 1946 FIGS.
hsllulfw ,f 4.
IN VEN TOR. NORMAN E.. LEE
l ATTORNEY Patented `luly 3, 1951 FLEXIBLE MEMBER Norman E. Lee, Forest Hills, N. Y., assignor to the United States of America as represented by the Secretary of War 'Application February 21, 194s, serial No. 649,448
12 Claims. (Cl. 267-1) (Granted under the act of March 3, v1883, as
rrlce amended April 30, 1928; 370 0. G. '757) The invention described herein may be manufactured and used by or for the Government for governmental purposes, without the payment to me of any royalty thereon.
The present invention relates to exible memshown in the drawings, wherein bersand is particularly directed to such mem- Figure 1 is an elevational view of a motor 13ers as are adapted to be used in antenna masts vehicle type antenna mast base embodying the and the like, as disclosed and claimed in my copresent invention; pending application forpatent on improvements Figure 2 is an enlarged fragmentary vertical in Antenna Mast Base, filed on February 11, sectional view of the mast base of Figure 1 show- 1944, and bearing Serial No. 521,964 which was ing the parts in unflexed condition; and issued on September' 9, 1947, as Patent Number Figure 3 is a further enlarged view similar to 2,427,08. Figure 2, except that the flexible `member is Innumerable devices in many arts incorporate shown in a flexed condition as might be caused flexible members of one kind or another. Exby deflections Vof the antenna mast during use` amples cf such flexible members are flexible cou- Referring now more particularly to the drawplings for the transmission of power, tachometer ings, the antenna mast base shown therein incables, multiple conductor electrical cables carcludes a support insulator Ii, a lower socket I3 rying current to moving units, flexible hose for secured to said insulator II, a flexible sheath I5, liquids and many others. Another application, secured to said lower socket I3, an upper socket and one which will be used in the present case Il secured to the upper end of said flexible sheath for purpose of illustration, is the base for an I5, an outer cover 23 surrounding said sheath I5, antenna mast installed on a motor vehicle or an antenna [errule I9 secured to the upper socket watercraft. Il and a sheaf of spring wires 2I extending be- Most flexible members of the prior art are so 25 tween the lower and upper sockets I3, I1 and constructed that they have one or more weak Within the flexible sheath I5. points where breakage is likely to occur long be- The lower socket I3 is a cylindrical metal cup fore the balance of the structure has outlived its which 1 is provided with a cylindrical, ccaxially usefulness.l The construction of some members disposed, bore 25 facing upwardly. The upper allows nonuniform flexibility throughout their end of said socket I3 is circumferentially rablengths which is objectionable for some uses. beted to form a relatively thin, upwardly ex- Again other `flexible members cause electrical tending, tubular flange 2'I of less outside diamefects, either capacitive or inductive, which make eter than the balance of the socket I3 and an them highly unsatisfactory .in some applications, upwardly facing exterior circumferential shoulsuch as an antenna mast base. der 28. The lower end of the upper socket I1 is It is therefore an object of the present invenprovided with a similar bore 25 and is likewise tion to provide a flexible member which is not eircumferentially rabbeted to form a similar subject to undue strain at any point and theretubular/ ange 2l, which extends downwardly, fore is less liable to breakage. l y and asimilar shoulder 28, facing downwardly. It is a further object to provide a flexible mem- A plurality of juxtaposed spring wires 2 I, such ber wherein the degree of flexibility is substanas lengths of piano wire, extend into the bore 25 tially constant throughout its length. of the lower socket I3 at one end and into the It is still another object to provide such a bore 25 of the upper socket Il at the other end. flexible member in which electrical disturbances The lower ends of said wires 2I are secured to are eliminated or at least reduced to a minimum. each other and into the bore 25 of the lower It is yet another object to provide a flexible socket I3 by Welding or any other suitable means. member which is durable and capable of sus- Said spring Wires 2|, hOWeVefy throughout the taining the shocks and vibrations ordinarily incibalance of their lengths are free to slide longident to its use. tudinally against one another when subjected to It is still another object to provide a flexible bending. -The upper ends of the spring wires 2I member which may be utilized as an electrical do not extend completely into the bore 25 of the conductor. upper socket I'I, thereby allowing sufficient room A further object is to provide a flexible member for sliding, within said upper socket, upon deflecwhich is relatively light in weight and inextion. pensive to fabricate. The flexible sheath I5 is made up of a tightly These and other objects will become apparent from the following description of one embodiment of the present invention'which is exemplied in the structure hereinafter described and maybe used in the spring 29.
For compactness and reduced weight, the inner surfaces of the tu'rns of the helical spring 29 are preferably flattened out slightly, by grinding or otherwise. After such flattening, the .inside diameter of the helical spring29 should equal the inside diameter of the tubular flanges 21. The opposite ends of said spring 29 surround the tubular flanges 21 of the lower and upper sockets I3, I1 and abut the shoulders 28 thereon. 'Ihe inner surfaces of a number of turns 3| at both ends of said helical spring 29,I which surround said anges 21, are suitably flattened, to a greater extent than throughout the intermediate portion of said spring, by grinding or otherdamping the motions of the antenna and curtai-ling extreme gyrations thereof.
During such flexure of the assembly, successive turns of the spring 29, on the Voutside of the bend, will separate some to allow the turns of soft wire 33 therebetween to move slightly inwardly between -said turns, and successive turns of the spring 29, on the inside of the bend, will move closer together and will force the intermediate of the helical spring 29, on the outside of the wise, to allow them to encompass said tubular anges 21. Said turns 3| are preferably attened internally so that they are approximately semicircular in cross section. After such flattening the inside diameter of said end turns 3| should be equal to the outside diameter of the tubular flanges 21. This allows them to encircle the flanges 21 and also gives them increased flexibility, the importance of which will become apparent hereinafter. V
Four strands of soft wire 33 are wound about the helical spring 29 and are staggered relative to the turns of said helical spring 29, so that the turns of soft wire 33 are forced into the interstices between the successive turns of the spring 29 and push said successive turns of the spring 29 apart slightly. When so constructed said turns of soft wire 33, when in place, in cross section, are flat on the outside and have two concave surfaces on the inside to allow intimate intermeshing with the turns of the helical spring 29. After the soft wire 33 has been forced into place, the spacing between successive turns of the spring 29 should preferably be approximately the same as the spacing between successive turns of the soft wire 33.
The opposite ends of the exible sheath I5 (made up of the spring 29 and the soft wire 33) Y are secured to the lower and upper sockets I3, I1 by means of two tubular sleeves 35 which are slipped respectively over the sockets I3, I1 so as to extend partly over said sockets I3, I1 and partly over the opposite ends of said sheath I5. The said sleeves 35 are swaged into tapered indentaticns 31 ground into the sheath I5 and into the sockets I3, I1 at several points about their peripheries. Said sleeves 35, in addition. may be brazed or soldered tothe ends of the sheath I5 and to the sockets I3, I1. y
The entire fiexible assembly Iis then embedded in and surrounded by a cover 23 of elastic material, such as real or synthetic rubber, which cover shouldY completely encase the i exible sheathV I5, the sleeves 35 and portions Vof the sockets I3, I1. Y f
In the operation of the device just described, when the assembly is flexed in any direction (as shown in Figure 3), the spring wires 2| will flex and, except at their lower anchored extremities, will slide lengthwise along each other. The sheath I5 should preferably surround said bundle of wires 2| with sufficient snugness so that the wires, in sliding against each other, set up a certain amount of friction therebetween, 4thus bend, to pull apart to a greater extent than the heavier intermediate turns of said spring 29.
'Ihis protects said heavier turns from undue strain at the crucial points of the assembly, namely at the ends of the tubular flanges 21 and prevents breakage at these points. It also prevents gaps between successive turns in the sheath I5 at these points, which gaps would upset the continuity of electrical contact between turns and give rise to harmful electrical disturbances in some applications.
It is to be noted that the tubular flanges 21 should preferably be of sufficiently thin metal so that they are suflciently flexible so that theycan assume a somewhat oval configuration in cross section during flexure of the wires 2| to better facilitate such fiexure.
Although the 'fiexible member herein is illustrated in the drawings in connection with a plurality of spring wires 2|, it will be understood that it can be used in other applications, such as where the interior is hollow, as in gasoline hose and the like.
Although the spring wires 2| of the illustrated embodiment are anchored Ain one of the sockets I3, it will be understood that they need not be so anchored, but may be individually free to slide back and forth longitudinally. It is merely necessary that the distance from the blind end of the bore 25 of one socket I3, I1 to the blind end of the bore 25 of the other socket be somewhat longer than the spring wires 2| so as to allow said wires to bend freely when the assembly is flexed.
Since many changes may be made in the above construction and many apparently widely different embodiments of this invention may be -made without departingY from the scope thereof,
it is intended that all matter contained in the above description or shown in the accompanying' vwhich encircle the anges so as to be weaker in l extension throughout said end portions, and said helix of soft wire being wound around said spring and of similar pitch and disposed in the interstices between the turns of said spring.
2. In a flexible member as defined in claim 1, wherein a plurality of spring wires extend longitudinally within the flexible sheath and partly into the sockets.
3. In a flexible member as defined in claim 1, wherein a plurality of spring wires extend longitudinally within the flexible sheath and partly into the sockets and wherein the flanges are flexible.
4. In a flexible member a pair of spaced opposed sockets, tubular flanges on said sockets extending toward each other, a, helical spring extending between said sockets and encircling said flanges, the turns of the spring encircling said flanges and immediately adjacent said flanges being less stiff than the balance of said spring.
5. In a flexible member as defined in claim 4, a helix of soft metal wound about the spring and intermeshed into the interstices thereof.
6. In a flexible member as defined inclaim 4, a helix of soft metal wound about the spring and intermeshed into the interstices thereof so as to force the turns of said spring into spaced relationship.
7. In a flexible member as defined in claim 4, wherein the tubular flanges are flexible.
8. In a flexible member, a pair of cylindrical spaced opposing sockets, tubular flanges respectively on said sockets facing toward each other. a helical spring extending between said sockets and encircling said flanges, a helix of relatively soft wire wound around said helical spring and wedged into the interstices between successive turns thereof, the spring being of less cross sectional area and less stiff throughout its end portions which encircle the flanges than throughout the balance of its length, means for anchoring the opposite ends of the helical spring and the helix of soft wire to the sockets.
9. A flexible member as defined in claim 8, wherein the sheath is surrounded by a cover of elastic material.
10. A flexible member as Ydefined in claim 8, wherein a plurality of juxtaposed spring wires extend longitudinally through the interior of the spring.
11. In a flexible member as defined in claim 8, wherein the flanges are flexible.
12. A flexible member as deflned in claim 8, wherein a plurality of juxtaposed spring wires extend longitudinally through the interior of the spring and wherein the flanges are flexible.
NORMAN E. LEE.
REFERENCES CITED The following references are of record in the le of this patent:
UNITED STATES PATENTS
US649448A 1946-02-21 1946-02-21 Flexible member Expired - Lifetime US2558763A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US649448A US2558763A (en) 1946-02-21 1946-02-21 Flexible member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US649448A US2558763A (en) 1946-02-21 1946-02-21 Flexible member

Publications (1)

Publication Number Publication Date
US2558763A true US2558763A (en) 1951-07-03

Family

ID=24604827

Family Applications (1)

Application Number Title Priority Date Filing Date
US649448A Expired - Lifetime US2558763A (en) 1946-02-21 1946-02-21 Flexible member

Country Status (1)

Country Link
US (1) US2558763A (en)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2684822A (en) * 1948-10-02 1954-07-27 Eugene A Odin Supporting structure
US2791757A (en) * 1954-03-24 1957-05-07 California Research Corp Pressure cable construction
US2996033A (en) * 1959-10-07 1961-08-15 Arthur H Yordi Boat mooring device
US3086556A (en) * 1960-06-10 1963-04-23 Crane Co Flexible metal pipe
US3130754A (en) * 1960-11-30 1964-04-28 American Chain & Cable Co Push-pull cable casings
US3268275A (en) * 1965-05-11 1966-08-23 William N Laghlin Drill string protector and system
FR2317226A1 (en) * 1975-07-07 1977-02-04 Alcan Res & Dev Improvements in alumina production
US4073254A (en) * 1975-07-04 1978-02-14 Hannes Marker Sailing mast for sailing boards
US4098298A (en) * 1973-12-14 1978-07-04 Herbert Vohrer Hose
US4263897A (en) * 1979-05-04 1981-04-28 Olympus Optical Co., Ltd. Endoscope
US4393383A (en) * 1979-11-16 1983-07-12 Nippon Electric Co., Ltd. Mobile antenna mounting assembly
US4540989A (en) * 1983-07-05 1985-09-10 Motorola, Inc. Whip antenna assembly exhibiting increased durability
US4625213A (en) * 1981-01-28 1986-11-25 Orion Industries, Inc. Antenna mount
US4842174A (en) * 1987-04-07 1989-06-27 Sheppard Mark E Flexible mount for mobile apparatus
US5229784A (en) * 1989-09-01 1993-07-20 Firstech Industries, Inc. Antenna mount
FR2693038A1 (en) * 1992-06-29 1993-12-31 Pizon Ernest Transmitting-receiving antenna base for radiotelephone - has flexible inner rod with spring round outside and less flexible outer section connecting base to aerial
US5769558A (en) * 1996-10-17 1998-06-23 Radius Metier, Inc. Flex joint
US20050194501A1 (en) * 2004-03-02 2005-09-08 Harald Richter Support device with flexible support arm
US20080062067A1 (en) * 2006-09-13 2008-03-13 Antenex, Inc. Antenna cover
US20100265154A1 (en) * 2009-04-16 2010-10-21 Silitek Electronic (Guangzhou) Co., Ltd. Antenna structure

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1053394A (en) * 1911-01-21 1913-02-18 T R Almond Mfg Co Flexible tubing.
US1385821A (en) * 1920-08-31 1921-07-26 Howard W Goodall Metal-lined hose
US1433537A (en) * 1920-07-23 1922-10-31 Winfred W Elliott Flexible shaft terminal
US1588900A (en) * 1922-12-15 1926-06-15 Eclipse Machine Co Flexible link for velocipedes and the like
GB279399A (en) * 1926-10-22 1928-01-12 Degussa Improvements in or relating to flexible hose
US1661835A (en) * 1928-03-06 Method of forming mexible tubing
US1684554A (en) * 1926-06-23 1928-09-18 Degussa Protective sheath for flexible shafts
GB301865A (en) * 1927-12-07 1930-02-03 Vladimir Antoine De Vulitch Elastic coupling
US1882943A (en) * 1930-01-11 1932-10-18 Stewart Warner Corp Flexible shaft end
US2346426A (en) * 1941-10-30 1944-04-11 Fmc Corp Flexible rotary drive coupling

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1661835A (en) * 1928-03-06 Method of forming mexible tubing
US1053394A (en) * 1911-01-21 1913-02-18 T R Almond Mfg Co Flexible tubing.
US1433537A (en) * 1920-07-23 1922-10-31 Winfred W Elliott Flexible shaft terminal
US1385821A (en) * 1920-08-31 1921-07-26 Howard W Goodall Metal-lined hose
US1588900A (en) * 1922-12-15 1926-06-15 Eclipse Machine Co Flexible link for velocipedes and the like
US1684554A (en) * 1926-06-23 1928-09-18 Degussa Protective sheath for flexible shafts
GB279399A (en) * 1926-10-22 1928-01-12 Degussa Improvements in or relating to flexible hose
GB301865A (en) * 1927-12-07 1930-02-03 Vladimir Antoine De Vulitch Elastic coupling
US1882943A (en) * 1930-01-11 1932-10-18 Stewart Warner Corp Flexible shaft end
US2346426A (en) * 1941-10-30 1944-04-11 Fmc Corp Flexible rotary drive coupling

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2684822A (en) * 1948-10-02 1954-07-27 Eugene A Odin Supporting structure
US2791757A (en) * 1954-03-24 1957-05-07 California Research Corp Pressure cable construction
US2996033A (en) * 1959-10-07 1961-08-15 Arthur H Yordi Boat mooring device
US3086556A (en) * 1960-06-10 1963-04-23 Crane Co Flexible metal pipe
US3130754A (en) * 1960-11-30 1964-04-28 American Chain & Cable Co Push-pull cable casings
US3268275A (en) * 1965-05-11 1966-08-23 William N Laghlin Drill string protector and system
US4098298A (en) * 1973-12-14 1978-07-04 Herbert Vohrer Hose
US4073254A (en) * 1975-07-04 1978-02-14 Hannes Marker Sailing mast for sailing boards
FR2317226A1 (en) * 1975-07-07 1977-02-04 Alcan Res & Dev Improvements in alumina production
US4263897A (en) * 1979-05-04 1981-04-28 Olympus Optical Co., Ltd. Endoscope
US4393383A (en) * 1979-11-16 1983-07-12 Nippon Electric Co., Ltd. Mobile antenna mounting assembly
US4625213A (en) * 1981-01-28 1986-11-25 Orion Industries, Inc. Antenna mount
US4540989A (en) * 1983-07-05 1985-09-10 Motorola, Inc. Whip antenna assembly exhibiting increased durability
US4842174A (en) * 1987-04-07 1989-06-27 Sheppard Mark E Flexible mount for mobile apparatus
US5229784A (en) * 1989-09-01 1993-07-20 Firstech Industries, Inc. Antenna mount
FR2693038A1 (en) * 1992-06-29 1993-12-31 Pizon Ernest Transmitting-receiving antenna base for radiotelephone - has flexible inner rod with spring round outside and less flexible outer section connecting base to aerial
US5769558A (en) * 1996-10-17 1998-06-23 Radius Metier, Inc. Flex joint
US20050194501A1 (en) * 2004-03-02 2005-09-08 Harald Richter Support device with flexible support arm
US7011279B2 (en) * 2004-03-02 2006-03-14 Harald Richter Support device with flexible support arm
US20080062067A1 (en) * 2006-09-13 2008-03-13 Antenex, Inc. Antenna cover
US7525505B2 (en) 2006-09-13 2009-04-28 Antenex, Inc. Antenna cover
US20100265154A1 (en) * 2009-04-16 2010-10-21 Silitek Electronic (Guangzhou) Co., Ltd. Antenna structure
US8072391B2 (en) * 2009-04-16 2011-12-06 Silitek Electronic (Guangzhou) Co., Ltd. Antenna structure

Similar Documents

Publication Publication Date Title
US10935097B2 (en) Canted coil spring with longitudinal component within and related methods
EP0711933B1 (en) Coil spring with ends adapted for coupling without welding
CA1241992A (en) Electrical test probe
DK9500274U4 (en) "Hand lamp"
US3163732A (en) Electrically fused spring package
JP4922879B2 (en) Actuator
EP0048176B1 (en) Electrically shielded conduit and method of making same
US6147661A (en) Helical coil, method of producing same and helical antenna using same
US3324233A (en) Cable complex employing strand twist reversal to absorb longitudinal expansion
US3333044A (en) Passageway structure for liquid coolant at gun and transformer ends of welding cable having novel internal surface bearing for alternate polarity strands
US3907339A (en) Cryogenic delivery line
US3060972A (en) Flexible tube structures
US5791638A (en) Coil spring with ends adapted for coupling without welding
US3333045A (en) Body implantable electrical conductor
US3775811A (en) Appliance for linear bodies
US5709371A (en) Coil spring with ends adapted for coupling without welding
US2832374A (en) Flexible tube assemblies
JP6495825B2 (en) Connection device
US9236682B2 (en) Cylindrical electric connector with biased contact
US4003621A (en) Electrical connector employing conductive rectilinear elements
KR100355167B1 (en) Inner spring structure with spring with free end circuit
US5702437A (en) Implantable lead with wires carried by body
US3035476A (en) Braided cord
US4499341A (en) Extensible electrical cable assembly
US4588852A (en) Stable impedance ribbon coax cable