US3625077A - Transfer rods - Google Patents

Transfer rods Download PDF

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Publication number
US3625077A
US3625077A US850773A US3625077DA US3625077A US 3625077 A US3625077 A US 3625077A US 850773 A US850773 A US 850773A US 3625077D A US3625077D A US 3625077DA US 3625077 A US3625077 A US 3625077A
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US
United States
Prior art keywords
rod
transfer
drum
transfer rod
metallic strip
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
US850773A
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English (en)
Inventor
Henri Bernard
Henri Bruel
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Application granted granted Critical
Publication of US3625077A publication Critical patent/US3625077A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F5/00—Transportable or portable shielded containers
    • G21F5/02—Transportable or portable shielded containers with provision for restricted exposure of a radiation source within the container
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C19/00—Arrangements for treating, for handling, or for facilitating the handling of, fuel or other materials which are used within the reactor, e.g. within its pressure vessel
    • G21C19/02—Details of handling arrangements
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors
    • 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
    • Y10T74/18—Mechanical movements
    • Y10T74/18568—Reciprocating or oscillating to or from alternating rotary
    • Y10T74/18832—Reciprocating or oscillating to or from alternating rotary including flexible drive connector [e.g., belt, chain, strand, etc.]
    • Y10T74/1884—Reciprocating or oscillating to or from alternating rotary including flexible drive connector [e.g., belt, chain, strand, etc.] with sprocket wheel
    • 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
    • Y10T74/20474—Rotatable rod, shaft, or post
    • Y10T74/20486—Drum and cable

Definitions

  • the transfer rod is made up of rigid blocks or plates referred to as rod elements which can be interlocked and are secured to at least one metallic strip having high tensile strength.
  • the rod is stored on a freely rotatable takeup drum and delivered by guiding and actuating means in opposition to a spiral spring mounted in the drum.
  • the present invention relates to improvements made in transfer shafts or rods and, among the different applications which may be contemplated, is primarily directed to devices of this type which are employed for transferring a radioactive element from a transport container to a utilization cell or conversely.
  • the transfer rod in accordance with the invention is mainly characterized in that it comprises lockable and rigid elements or blocks which are fastened to a metallic strip having high tensile strength.
  • said metallic strip can be directly arranged so as to displace the device as a whole in longitudinal motion.
  • the metallic strip virtually duplicates the usual driving chain or belt.
  • FIG. 1 illustrates the arrangement of a transfer rod in accordance with the invention
  • FIG. 2 is a diagrammatic sectional view of the complete assembly consisting of transfer device and magazine;
  • FIG. 3 is a vertical sectional view taken along line III-III of FIG. 2;
  • FIG. 4 is a view in perspective showing the front end of the device
  • FIG. 5 is a diagrammatic view showing the locking of the device on completion of the unwinding operation
  • FIG. 6 is a plan view of another type of magazine
  • FIG. 7 is a vertical sectional view of the driving mechanism associated with the magazine according to FIG. 6;
  • FIG. 8 is a side view of the corresponding transfer rod
  • FIGS. 9 and 10, 11 and 12 respectively are views which are similar to those of FIGS. 7 and 8 but correspond to two alternative forms of construction;
  • FIGS. 13 and 14 are vertical sectional views which illustrate two other forms of construction of the driving mechanism.
  • the flexible transfer rod which is illustrated in FIGS. 1 to 5 comprises essentially a metallic strip 1 formed of material having high tensile strength (plain carbon steel, stainless steel, plastic material or the like) and a series of lockable elements 2 which are fastened to one of the faces of said metallic strip 1 in substantially close contact therewith.
  • each element 2 is secured to the strip 1 by means of two screws 3 which are inserted in drilled holes 1a of said strip and screwed home within corresponding internally-threaded bores 2a of the element.
  • the transfer rod in accordance with the invention is thus capable of undergoing deformation when the strip 1 is applied against a cylindrical wall whilst the elements 2 are accordingly separated.
  • the elements 2 come into contact with each other so that the complete assembly behaves in the same manner as a rigid body and the strip 1 prevents any angular displacement of said elements.
  • the transfer rod 12 is associated with a cylindrical magazine provided with a gear drive mechanism.
  • One end of the strip 1 is secured to the outer wall of a drum 4 which is mounted to rotate freely on a horizontal shaft 5 carried by two vertical side plates 6.
  • a spring 7 which tends continuously to cause the drum 4 to rotate in the direction corresponding to winding or take-up of the transfer rod 1-2.
  • said transfer rod 1-2 is applied against a guide 8 (as shown in FIG. 2) having a profile in the shape of a circular arc and penetrates into the interior of the frame 9 of the driving mechanism, said frame being intended to form a support for the vertical side plates 6 which have already been mentioned.
  • a vertical chimney 10 is fixed on the top wall of the frame 9, a coaxial shaft 11 being mounted inside said chimney and suitably supported for rotational motion within said frame.
  • a pinion 12 is keyed on said shaft 11 and, by means of a gear 13-, drives a pinion 14 whose toothed periphery is engaged through a lateral opening formed in a cylindrical sleeve 9a which is rigidly fixed to the frame 9.
  • the transfer rod 1-2 has a size and shape such as to permit of insertion within the sleeve 9a and of longitudinal sliding motion with as little play as possible.
  • each element 2 is provided on one lateral face with a set of teeth 2b (as shown in FIG. 1) which is intended to cooperate with the pinion 14.
  • the transfer rod 1-2 As it passes out of the sleeve 9a, the transfer rod 1-2 is supported by a rectilinear horizontal guide 16 (as shown in FIG. 2) which carries out the alignment of said elements 2 in conjunction with said sleeve.
  • the device 1-2 is thus endowed with perfect rigidity.
  • the front element 2 of the transfer rod is hollowed out so as to form an axial bore 2'a (as shown in FIG. 4) within which is fixed a longitudinal rod 17 (shown in FIG. 2), for example by means of a key or screw inserted in a transverse bore 2'b.
  • An internally threaded sleeve 18 is maintained axially while being freely rotatable on the free end of said rod 17 and is intended to be screwed onto the usual threaded end-piece of a radioactive element as a result of a movement of rotation.
  • this element which is designated by the reference A is shown inside a transport flask B. It is apparent that, after the sleeve 18 has been screwed home, said element A can be displaced either forwards or backwards in the axial direction for its extraction from the flask B and its transfer into a utilisation cell.
  • the last element 2" (FIG. 5) of the device is advantageously endowed with a profile such that said element cannot penetrate into the interior of the sleeve 9a of the frame 9.
  • the magazine can have the rectangular profile which is illustrated at C in 'FIG. 6, the transfer rod being disposed in rectilinear portions which are separated from each other by curved portions.
  • a driving mechanism D which can be different from the mechanism illustrated in FIGS. 2 and 3.
  • said transfer rod additionally comprises a toothed belt 23 which is attached in any suitable manner to the free top face of said strip 21.
  • the driving mechanism is constituted :by a toothed pinion 24 which is actuated by means of a crank-handle 25, the tranfer rod 21-22-23 being supported by a longitudinal sectional member 26.
  • the pinion 34 of the driving mechanism cooperates directly with perforations 31a which are formed in the metallic strip 31 of the transfer rod 31-32.
  • FIGS. 11 and 12 illustrate another form of construction in which the transfer rod 41-42 is associated with an upper chain 43, the links of which are suitably attached to the free face of the metallic strip 41.
  • the drive is effected in that case by means of a sprocket wheel 44.
  • the transfer rod device 51-52 which is similar 4 to that of FIG. 1 is frictionally driven by means of a lower roller 54 which is caused to rotate by means of the crank-handle 55, said roller being adapted to cooperate with an upper counter-roller or pressure roller 56; in this instance the frame 59 is intended to be adjustable for height.
  • a transfer rod for the atomic energy industry comprising lockable rigid elements secured to a metallic strip having high tensile strength and a second metallic strip said elements being placed between said two strips.
  • a mechanism for storing and actuating the trans fer rod of claim 1 comprising a drum which is mounted to rotate freely on a shaft supported by side plates and which is intended to contain said transfer rod, an arcuate component disposed beneath said drum for guiding said rod as it is delivered from said drum, a rotatable member housed within a sleeve located beneath said drum close to the extremity of said arcuate component, said rotatable member being intended to engage with said rigid plates and a horizontal guide member for receiving said rigid plates one after the other after they have passed out of said sleeve.
  • said rotatable member consists of a roller, said roller driving said transfer rod by frictional contact.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Plasma & Fusion (AREA)
  • Advancing Webs (AREA)
US850773A 1968-08-22 1969-08-18 Transfer rods Expired - Lifetime US3625077A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR163779 1968-08-22

Publications (1)

Publication Number Publication Date
US3625077A true US3625077A (en) 1971-12-07

Family

ID=8653931

Family Applications (1)

Application Number Title Priority Date Filing Date
US850773A Expired - Lifetime US3625077A (en) 1968-08-22 1969-08-18 Transfer rods

Country Status (2)

Country Link
US (1) US3625077A (enrdf_load_stackoverflow)
FR (1) FR1586696A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3943783A (en) * 1972-12-14 1976-03-16 Bell And Howell Company Storable rack assembly
US4311225A (en) * 1978-06-14 1982-01-19 Hitachi, Ltd. Device for driving driven member by roller chain
US4493347A (en) * 1981-10-14 1985-01-15 Ruti Machinery Works, Ltd. Weft insertion device for a band-gripper weaving machine
US5483849A (en) * 1992-02-24 1996-01-16 Sankyo Seiki Mfg. Co., Ltd. Governor with pulley
US6250175B1 (en) * 1995-09-19 2001-06-26 Nobert Noetzold Pull cable system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4211928A (en) * 1978-11-27 1980-07-08 Technical Operations, Incorporated Linear storage projector
US4225790A (en) * 1978-11-27 1980-09-30 Technical Operations, Incorporated Storage reel assembly

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3943783A (en) * 1972-12-14 1976-03-16 Bell And Howell Company Storable rack assembly
US4311225A (en) * 1978-06-14 1982-01-19 Hitachi, Ltd. Device for driving driven member by roller chain
US4493347A (en) * 1981-10-14 1985-01-15 Ruti Machinery Works, Ltd. Weft insertion device for a band-gripper weaving machine
US5483849A (en) * 1992-02-24 1996-01-16 Sankyo Seiki Mfg. Co., Ltd. Governor with pulley
US6250175B1 (en) * 1995-09-19 2001-06-26 Nobert Noetzold Pull cable system
US6606921B2 (en) 1995-09-19 2003-08-19 Nobert Noetzold Pull cable system

Also Published As

Publication number Publication date
FR1586696A (enrdf_load_stackoverflow) 1970-02-27

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