US3924843A - Tool - Google Patents

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Publication number
US3924843A
US3924843A US450193A US45019374A US3924843A US 3924843 A US3924843 A US 3924843A US 450193 A US450193 A US 450193A US 45019374 A US45019374 A US 45019374A US 3924843 A US3924843 A US 3924843A
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US
United States
Prior art keywords
hose
inflatable
tool
tool according
transverse walls
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
US450193A
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English (en)
Inventor
Georg Hirmann
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.)
REPAPRESS AG
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REPAPRESS AG
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 REPAPRESS AG filed Critical REPAPRESS AG
Application granted granted Critical
Publication of US3924843A publication Critical patent/US3924843A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08Characterised by the construction of the motor unit
    • F15B15/10Characterised by the construction of the motor unit the motor being of diaphragm type
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D15/00Shearing machines or shearing devices cutting by blades which move parallel to themselves
    • B23D15/12Shearing machines or shearing devices cutting by blades which move parallel to themselves characterised by drives or gearings therefor
    • B23D15/14Shearing machines or shearing devices cutting by blades which move parallel to themselves characterised by drives or gearings therefor actuated by fluid or gas pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25Movable or adjustable work or tool supports
    • B23Q1/26Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
    • B23Q1/28Means for securing sliding members in any desired position
    • B23Q1/287Means for securing sliding members in any desired position using a hydraulically controlled membrane acting directly upon a sliding member
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00Clamps
    • B25B5/06Arrangements for positively actuating jaws
    • B25B5/061Arrangements for positively actuating jaws with fluid drive
    • B25B5/065Arrangements for positively actuating jaws with fluid drive involving the use of flexible pressure bags or diaphragms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B7/00Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
    • B25B7/12Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools involving special transmission means between the handles and the jaws, e.g. toggle levers, gears
    • B25B7/126Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools involving special transmission means between the handles and the jaws, e.g. toggle levers, gears with fluid drive
    • 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
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J3/00Diaphragms; Bellows; Bellows pistons

Definitions

  • ABSTRACT A tool includes a force-producing device having at least one inflatable member of hose-like shape sinuously disposed in loops within subdivisions of a frame member having a plurality of mutually spaced transverse walls subdividing the same into subdivisions.
  • An opposing frame member subdivided by a plurality of mutually spaced transverse walls, the respective transverse walls of said frame members alternately disposed in the free space of said subdivisions, the hose-like member being inflatable to displace the frame members relative to one another.
  • Another inflatable member to displace the frame members in an opposite direction. Inserts for the hose-like member to prevent its blockage. Pressure-tightly closed ends provided on the inflatable member.
  • Retainer means for securing the inflatable member in the tool.
  • the tool may be used as a vise, pliers, tongs claws and the like.
  • FIG. A A first figure.
  • FIGJG FIG.17
  • FIG 22 FIG. 23
  • the invention relates to a tool.
  • a tool comprising a force-producing device having at least one inflatable member.
  • FIG. 1 is a diagrammatic view, partly in section taken along the line H in FIG. 3 of a pneumatic multiple thrust producing unit;
  • FIG. 2 is an enlarged sectional view of FIG. 1 taken along the line [HI and rotated through 90, the thrust producing unit of the invention being shown partly broken away and with an additional vise structure;
  • FIG. 3 is a perspective view on reduced scale of the thrust producing unit of FIG. 1;
  • FIG. 4 is a longitudinal sectional view of a vise actuable by the multiple thrust producing unit of FIG. 1;
  • FIG. 5 is a diagrammatic, perspective view, partly in section and partly broken away of a folding or bending press provided with the pneumatic multiple thrust producing unit of the invention
  • FIG. 6a is a perspective view of a section of a twisted or sinuous hose or tube having flat bends therein for use in the embodiment shown in FIG. 1;
  • FIG. 6b is a perspective view, partly broken away of a profile retaining insert forming part of the sinuous hose of FIG. 6a;
  • FIG. '7 is an exploded perspective view of members forming a substantially flat or planar closure of the ends of the hose of the invention.
  • FIG. 8 is a perspective view, partly in section and partly broken away of a closed or tied off hose end
  • FIG. 9 is a longitudinal view at reduced scale of a hose tied off at both ends thereof by flat closure members and serving as thrust member between two plates shown in section;
  • FIG. 10 is an exploded perspective view of a flat closure member according to FIG. 7 modified to include a pressure fluid supply inlet tube;
  • FIG. 11 is a perspective view on reduced scale of a flat hose tied off at an end thereof with the flat closure member and supply inlet tube of FIG. 10;
  • FIG. 17 is a view similar to that of FIG. 16 of a hose with eyes on both sides thereof for retaining the hose on two curved supporting surfaces;
  • FIG. 18 is a perspective view of a hose end with guide rails or strips
  • FIG. 19 is a view similar to that of FIG. 18 of a hose end with guide grooves
  • FIG. 20 is a perspective view of clippers or pliers which, according to the invention, have a hose-shaped thrust member subjectible to'a pressure medium, and an elastic restoring clip;
  • FIG. 21 is a perspective exploded view of the clippers or pliers of FIG. 20;
  • FIG. 22 is a perspective exploded view of blank riveting tongs constructed according to the invention.
  • FIG. 23 is a longitudinal sectional view of an assembled embodiment of the blank riveting tongs of FIG. 22;
  • FIG. 24 is a perspective exploded view of a double lever clamping claw according to the invention.
  • FIG. 25 is a perspective exploded view of a single lever clamping claw according to the invention.
  • FIG. 26 is a longitudinal sectional view of an assembled embodiment of the single lever clamping claw of FIG. 25.
  • FIGS. 1 and 3 there is shown therein a housing 1 with two lateral guide walls 3 and a rear wall 5, as well as transverse wall 7 extending parallel to the rear wall 5 and disposed at uniform spacing one from the other over the length of the housing 1.
  • Both guide walls 3 are formed with semicircular cylindrical grooves 9.
  • Each of the guide walls 3 is also provided with a connector nipple 11, 12.
  • One of the guide walls 3 is furthermore formed with a recess 13 as well as a threaded bore 14 communicating with the recess 13.
  • a sinuous hose 16 which. is disposed in the compartments formed between the: transverse walls 7 and extends within the cylindrical grooves 9 from one compartment to the other.
  • a slidable cover member 18 Detached from the housing 1 is a slidable cover member 18 which is suitably guided in the guide walls 3.
  • the cover member 18 is provided with a front wall 20 and, analogous to the housing 1, is provided with transverse walls 22 mutually spacedapart equal distances which correspond to the spacing between the transverse walls 7 of the housing 1.
  • the cover member 18 In actuating condition, the cover member 18 is located on top of the housing 1 and both are relatively movable a distance commensurate with the spacing between the respective transverse walls 7 and 22 thereof, as well as commensurate with the thickness of those walls, as shown in FIG. 1.
  • Respective lengths of the sinuous hose 16 that act as operating bellows 24 are disposed between two respective adjacent transverse walls 7.
  • a pressure medium such as compressed air, pressure oil or water under pressure, for example, is fed through the nipple 11 to the sinuous hose 16 which accordingly expands the hose at the operating bellows sections 24 thereof so that the latter exert a force commensurate with the pressure and the bearing or contact surface of the bellows 24 on the transverse walls 7 and 22 which confine the respective bellows 24, and tend to slide the respective transverse walls 7 and 22 away from one another.
  • Each bellows 24 exerts an equal force on the respective transverse walls 7 and 22 which limit or confine it, so that the cover member 18 tends to be displaced relative to the housing 1 by a force applied to both the housing 1 and the cover member 18 which is proportional to the number of bellows 24 and to the prevailing pressure of the working pressure medium. In this manner, a very great force is produced in an extremely small space.
  • the sinuous hose 16 e.g. the operating bellows 24 are depressurized, and pressure medium is then fed through the nipple 12 into the restoring bellows 25.
  • the latter acts in the opposite direction and slides the cover member 18 on and along the housing 1 back in a direction opposite the preceding direction of displacement thereof.
  • FIG. 2 there is shown diagrammatically how, by suitably constructing the ends of the housing 1 and the cover member 18 as clamping jaws 26 and 27, the resulting structure can be used as a clamp or tongs or a vrse.
  • FIG. 4 There is shown diagrammatically in FIG. 4, the application of a multiple thrust producing member, such as that shown in FIG. I, in a vise 29 of conventional type.
  • the vise 29 has two clamping jaws 30, the support member of one of the jaws 30 corresponding to the housing 31 and the support member for the other jaw corresponding to the slidable cover member 32.
  • An operating hose 33 is sinuously disposed so that respective bellows portions thereof are located between adjacent transverse walls of the housing 31 and the cover member 32.
  • the cover member 32 can be brought into another starting position with respect to the housing 31, by raising and sliding. In this way, it is possible to accommodate the starting position of the housing and the cover member to the particular prevailing conditions, which demonstrates the great flexibility and adaptability of such multiple thrust-producing units of the invention.
  • FIG. 5 there is shown a bending or folding press 34 having an upper fixed jaw 36 and a lower, displaceable jaw 37 which is guided in a stationary member 39.
  • the displaceable jaw 37 is furnished with a multiple thrust-producing member according to the invention.
  • the housing of the invention is formed by the stationary member 39 with transverse walls 40 thereof, while the cover member of the invention is provided by the displaceable jaw 37 and the transverse walls 42 thereof.
  • a suitable sinuous hose in accordance with the invention, of which the operating bellows 44 are clearly shown. Actuation of the bending or folding press 34 and adjustment thereof to the thickness of the object that is to be bent or folded is effected in a manner analogous to that described hereinbefore with respect to FIGS.
  • FIG. 6a there is shown part of a hose 46 having arcuate portions 47 and 48 such as are provided in the sinuous hose 16 of FIG. 1.
  • spacer inserts constructed for example as elastic or resilient formed or profiled inserts 50 (FIG. 6b) are introduced into the hose.
  • the inserts 50 prevent the hose from fully flapping together in bends and assure proper functioning of the operating and restoring bellows by the fact that they reliably afford passage for the pressure medium.
  • FIG. 7 shows in perspective view a flat hose closure device 53 that is made up of a cap 54 and a deformable filling body 56 which, if formed of elastic material, is provided with sealing lips 57.
  • FIG. 8 illustrates a hose end 59 which is tied or closed off by a flat hose closure member 53.
  • a filling body 62 is slid into the interior of the hose end 59, and a corresponding cap 61 is slipped over the hose end 59 so that the filling body 62 is disposed between the walls of the hose end 59 and within the cap 61.
  • the thus assembled members are compressed or pinched together as shown in FIG. 8.
  • the hose is then pressurized with working medium, it expands the filling body 62 and presses it against the thus held hose end 59 and the cap 61.
  • the higher the working medium pressure the stronger do the walls of the filling body 62 press against hose end 59 and the better the sealing.
  • Such a flat closure according to the invention affords the advantage over a round closure that when using the hose as a thrust-producing member between two supporting walls 64 and 65 the entire length thereof is effective, whereas in the case of round closures, a considerable part of both ends cannot be effective and either requires the supporting walls 64 and 65 to be bent upwardly at the ends thereof or requires narrower supporting walls and accordingly smaller operating or working areas for the same length of the thrust member 7 nut wrenches or pliers and plug or stopper wrenches as well as fastening or stapling pliers or tongs can be produced. All of the foregoing are thereby believed to be well within the scope of the invention of this application.
  • a further range of utility of the invention of this application is in stationary assemblable, tong-like presses, shears, pulse welding pliers or tongs, pliers-like sheet metal or wire feeding devices and the like.
  • the control of such tongs or pliers may be effected by means of built-in three-way valves, and mechanically actuable, by foot actuation or by control switches constructed at the handle and that are for example, magnetically actuable.
  • Tool comprising a force-producing device having an inflatable member of hose-like shape, a frame member having plurality of mutually spaced transverse walls subdividing the same, said hose-like inflatable member being sinuously disposed in loops within the subdivisions of said frame, and an opposing frame member having an inner space subdivided by a plurality of mutually spaced transverse walls, said transverse walls of said opposing frame member being fitted in said subdivisions defined by said transverse walls of said firstmentioned frame member, said frame members being mutually superposed with the respective transverse walls thereof altematingly disposed in the free space of said subdivisions, said inflatable hose-like member being inflatable so as to displace said frame members relative to one another in given direction.
  • Tool according to claim 1 including another inflatable member disposed in one of the subdivisions and inflatable so as to displace said frame members relative 8 to one another in direction opposite to said given direction and back to the initial relative position thereof.
  • said inflatable member comprises a hose having pressure-tightly closed ends.
  • hose ends are closed by a cap respectively extending over said hose ends and by a respective corresponding removable, unattached elastic body received in the interior of said hose, said cap having a crimp therein formlocking both said cap and said elastic body with said hose.
  • Tool according to claim 1 including means for securely retaining said inflatable member in the tool.
  • said retaining means is a holder member, and including another member cooperating with said holder member for securing said inflatable member in the tool, one of said members comprising a pin and the other formed with an eye wherein said pin is receivable.
  • said retaining means is a holder member, and including another member cooperating with said holder member for securing said inflatable member in the tool, one of said members comprising a ledge and the other formed with a groove wherein said ledge is receivable.
  • said inflatable member is formed of elastic profile material.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Materials For Medical Uses (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
US450193A 1973-03-09 1974-03-11 Tool Expired - Lifetime US3924843A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH349873A CH568493A5 (xx) 1973-03-09 1973-03-09

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US60094975A Division 1973-03-09 1975-08-01

Publications (1)

Publication Number Publication Date
US3924843A true US3924843A (en) 1975-12-09

Family

ID=4257287

Family Applications (1)

Application Number Title Priority Date Filing Date
US450193A Expired - Lifetime US3924843A (en) 1973-03-09 1974-03-11 Tool

Country Status (12)

Country Link
US (1) US3924843A (xx)
JP (1) JPS5026199A (xx)
AT (1) AT350481B (xx)
AU (1) AU6649174A (xx)
BE (1) BE812162A (xx)
BR (1) BR7401772A (xx)
CH (1) CH568493A5 (xx)
ES (1) ES201291Y (xx)
FR (1) FR2220701B1 (xx)
GB (2) GB1468375A (xx)
IT (1) IT1015839B (xx)
NL (1) NL7402528A (xx)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4056256A (en) * 1975-05-05 1977-11-01 Jack Banks Caisley Jacking assembly
WO1979000022A1 (en) * 1977-07-01 1979-01-25 W Holmes Hydraulic jacking method and apparatus
US4314690A (en) * 1978-10-31 1982-02-09 Skoda, Oborovny Podnik, Plzen Hydraulic apparatus for the generation of large tensile forces
US4447842A (en) * 1982-06-01 1984-05-08 Control Data Corporation Finned heat exchangers for electronic chips and cooling assembly
EP0186606A1 (en) * 1984-12-28 1986-07-02 Lantas Development And Industries (1984) Ltd. Fluid actuator devices
US5014970A (en) * 1990-05-31 1991-05-14 Walker Magnetics Group, Inc. Body member positioner
US5593146A (en) * 1993-03-26 1997-01-14 Kuhnke Gmbh Hydraulically actuated bar-like clamping tool
WO2000027617A1 (en) * 1998-11-06 2000-05-18 Smith Bruce D N Mobile press for the manufacture of foam insulated panels
US20130139474A1 (en) * 2009-06-05 2013-06-06 Todd Coleman Sampling bag and funnel for collection of soils, muds, or other solids or liquids for subsequent analysis of headspace gases and other content

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2409820A1 (fr) * 1977-11-29 1979-06-22 Seguy Claude Dispositif de commande pneumatique d'un outil
CH666433A5 (de) * 1984-01-28 1988-07-29 Festo Maschf Stoll G Kurzhub-spannelement.
US4687189A (en) * 1985-01-26 1987-08-18 Kurt Stoll Short stroke actuator
GB2228888A (en) * 1989-03-07 1990-09-12 Richard Michael Llewel Britton Apparatus for applying a load to a workpiece
DE4422735C1 (de) * 1994-06-29 1995-11-09 Lothar Zeeb Fluidisch betätigbares, leistenartiges Klemmwerkzeug

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2500363A (en) * 1946-03-11 1950-03-14 Scovill Manufacturing Co Container and closure means therefor
US2520467A (en) * 1946-02-05 1950-08-29 Rubbercraft Corp Of California Receptacle and closure means therefor
US2522659A (en) * 1946-04-05 1950-09-19 Rheem Mfg Co Clamping device
US2546596A (en) * 1946-06-17 1951-03-27 Sr David Terrell Haines Portable or stationary multiple air jack
US2720735A (en) * 1953-03-27 1955-10-18 Ruehl Harold Work holder for cylinder liners
US2804118A (en) * 1954-09-13 1957-08-27 Irvin L Bayerkohler Pneumatic bellows type jacks
US3122118A (en) * 1960-02-10 1964-02-25 Pandjiris Weldment Co Clamping device for a seamer
US3172166A (en) * 1961-12-29 1965-03-09 Arthur G Imbrecht Movable partition

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2560902A (en) * 1946-09-05 1951-07-17 Samuel R Smith Fluid pressure actuated multiple arm pressure clamp
GB1339672A (en) * 1972-01-18 1973-12-05 Shelley Partners Ltd M L Means for clamping sheet material
FR2172606A5 (xx) * 1972-02-17 1973-09-28 Minet Ets

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2520467A (en) * 1946-02-05 1950-08-29 Rubbercraft Corp Of California Receptacle and closure means therefor
US2500363A (en) * 1946-03-11 1950-03-14 Scovill Manufacturing Co Container and closure means therefor
US2522659A (en) * 1946-04-05 1950-09-19 Rheem Mfg Co Clamping device
US2546596A (en) * 1946-06-17 1951-03-27 Sr David Terrell Haines Portable or stationary multiple air jack
US2720735A (en) * 1953-03-27 1955-10-18 Ruehl Harold Work holder for cylinder liners
US2804118A (en) * 1954-09-13 1957-08-27 Irvin L Bayerkohler Pneumatic bellows type jacks
US3122118A (en) * 1960-02-10 1964-02-25 Pandjiris Weldment Co Clamping device for a seamer
US3172166A (en) * 1961-12-29 1965-03-09 Arthur G Imbrecht Movable partition

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4056256A (en) * 1975-05-05 1977-11-01 Jack Banks Caisley Jacking assembly
USRE30876E (en) * 1975-05-05 1982-03-02 Jacking assembly
WO1979000022A1 (en) * 1977-07-01 1979-01-25 W Holmes Hydraulic jacking method and apparatus
US4314690A (en) * 1978-10-31 1982-02-09 Skoda, Oborovny Podnik, Plzen Hydraulic apparatus for the generation of large tensile forces
US4447842A (en) * 1982-06-01 1984-05-08 Control Data Corporation Finned heat exchangers for electronic chips and cooling assembly
EP0186606A1 (en) * 1984-12-28 1986-07-02 Lantas Development And Industries (1984) Ltd. Fluid actuator devices
US5014970A (en) * 1990-05-31 1991-05-14 Walker Magnetics Group, Inc. Body member positioner
US5593146A (en) * 1993-03-26 1997-01-14 Kuhnke Gmbh Hydraulically actuated bar-like clamping tool
WO2000027617A1 (en) * 1998-11-06 2000-05-18 Smith Bruce D N Mobile press for the manufacture of foam insulated panels
US20130139474A1 (en) * 2009-06-05 2013-06-06 Todd Coleman Sampling bag and funnel for collection of soils, muds, or other solids or liquids for subsequent analysis of headspace gases and other content
US10077139B2 (en) * 2009-06-05 2018-09-18 Weatherford Technology Holdings, Llc Sampling bag and funnel for collection of soils, muds, or other solids or liquids for subsequent analysis of headspace gases and other content

Also Published As

Publication number Publication date
ES201291U (es) 1975-09-16
JPS5026199A (xx) 1975-03-19
BR7401772A (pt) 1975-11-11
AU6649174A (en) 1975-09-11
BR7401772D0 (pt) 1974-12-03
FR2220701A1 (xx) 1974-10-04
GB1468375A (en) 1977-03-23
GB1468376A (en) 1977-03-23
CH568493A5 (xx) 1975-10-31
ES201291Y (es) 1976-01-16
BE812162A (nl) 1974-09-11
NL7402528A (xx) 1974-09-11
ATA182174A (de) 1978-10-15
FR2220701B1 (xx) 1978-06-16
AT350481B (de) 1979-06-11
IT1015839B (it) 1977-05-20

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