CA1014310A - Method and apparatus for manufacturing a thermoplastic having fastener elements - Google Patents

Method and apparatus for manufacturing a thermoplastic having fastener elements

Info

Publication number
CA1014310A
CA1014310A CA167,807A CA167807A CA1014310A CA 1014310 A CA1014310 A CA 1014310A CA 167807 A CA167807 A CA 167807A CA 1014310 A CA1014310 A CA 1014310A
Authority
CA
Canada
Prior art keywords
thermoplastic
manufacturing
fastener elements
fastener
elements
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
Application number
CA167,807A
Other languages
English (en)
Other versions
CA167807S (en
Inventor
Erik Solbeck
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of CA1014310A publication Critical patent/CA1014310A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/40General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/47Joining single elements to sheets, plates or other substantially flat surfaces
    • B29C66/472Joining single elements to sheets, plates or other substantially flat surfaces said single elements being substantially flat
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/40General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43Joining a relatively small portion of the surface of said articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/80General aspects of machine operations or constructions and parts thereof
    • B29C66/83General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411Roller, cylinder or drum types
    • B29C66/83413Roller, cylinder or drum types cooperating rollers, cylinders or drums
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G59/00De-stacking of articles
    • B65G59/06De-stacking from the bottom of the stack
    • B65G59/061De-stacking from the bottom of the stack articles being separated substantially along the axis of the stack
    • B65G59/066De-stacking from the bottom of the stack articles being separated substantially along the axis of the stack by means of rotary devices or endless elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65GTRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G59/00De-stacking of articles
    • B65G59/06De-stacking from the bottom of the stack
    • B65G59/067De-stacking from the bottom of the stack articles being separated substantially perpendicularly to the axis of the stack
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/721Fibre-reinforced materials
    • B29C66/7212Fibre-reinforced materials characterised by the composition of the fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/731General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the intensive physical properties of the material of the parts to be joined
    • B29C66/7311Thermal properties
    • B29C66/73115Melting point
    • B29C66/73116Melting point of different melting point, i.e. the melting point of one of the parts to be joined being different from the melting point of the other part
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00Flat articles, e.g. films or sheets
    • B29L2007/005Tarpaulins
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/709Articles shaped in a closed loop, e.g. conveyor belts
    • B29L2031/7096Rings or ring-like articles
    • B29L2031/71Eyelets
    • 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
    • Y10T156/00Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1702For plural parts or plural areas of single part
    • Y10T156/1712Indefinite or running length work
    • Y10T156/1734Means bringing articles into association with web
    • 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
    • Y10T156/00Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1702For plural parts or plural areas of single part
    • Y10T156/1712Indefinite or running length work
    • Y10T156/1737Discontinuous, spaced area, and/or patterned pressing
    • 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
    • Y10T156/00Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1702For plural parts or plural areas of single part
    • Y10T156/1744Means bringing discrete articles into assembled relationship
    • Y10T156/1768Means simultaneously conveying plural articles from a single source and serially presenting them to an assembly station
    • 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
    • Y10T156/00Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1785Magazine stack directly contacting work

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulding By Coating Moulds (AREA)
  • Laminated Bodies (AREA)
  • Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)
CA167,807A 1972-04-19 1973-04-03 Method and apparatus for manufacturing a thermoplastic having fastener elements Expired CA1014310A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK191572AA DK130239B (da) 1972-04-19 1972-04-19 Fremgangsmåde og apparat til fremstilling af en af en termoplast bestående foliebane med lokalt fastgjorte beslag.

Publications (1)

Publication Number Publication Date
CA1014310A true CA1014310A (en) 1977-07-26

Family

ID=8108957

Family Applications (1)

Application Number Title Priority Date Filing Date
CA167,807A Expired CA1014310A (en) 1972-04-19 1973-04-03 Method and apparatus for manufacturing a thermoplastic having fastener elements

Country Status (26)

Country Link
US (1) US3909340A (fi)
JP (1) JPS5419907B2 (fi)
AR (1) AR199779A1 (fi)
AT (1) AT347114B (fi)
AU (1) AU461261B2 (fi)
BE (1) BE797973A (fi)
BR (1) BR7302800D0 (fi)
CA (1) CA1014310A (fi)
CH (1) CH560096A5 (fi)
CS (1) CS175455B2 (fi)
DD (1) DD103190A5 (fi)
DK (1) DK130239B (fi)
FI (1) FI55308C (fi)
FR (1) FR2180900B1 (fi)
GB (1) GB1416374A (fi)
HK (1) HK67176A (fi)
HU (1) HU171356B (fi)
IT (1) IT982800B (fi)
NL (1) NL178232C (fi)
NO (1) NO139257C (fi)
PL (1) PL85517B1 (fi)
RO (1) RO72851A (fi)
SE (1) SE379959B (fi)
SU (1) SU498898A3 (fi)
YU (1) YU35977B (fi)
ZA (1) ZA732470B (fi)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5115979A (ja) * 1974-07-31 1976-02-07 Hitachi Ltd Handotaisochinodenkyokukeiseiho
JPS5534704B2 (fi) * 1974-08-19 1980-09-09
JPS5132646A (fi) * 1974-09-13 1976-03-19 Matsushita Electric Ind Co Ltd
US4246062A (en) * 1979-03-26 1981-01-20 Christine William C Apparatus for attaching a fitment to a pouch
JPS5938740B1 (fi) * 1979-08-30 1984-09-19 Nippon Electric Co
JPH034146Y2 (fi) * 1980-05-09 1991-02-01
GB2122533B (en) * 1982-06-18 1986-01-15 Sig Schweiz Industrieges Attaching valves to packaging material
US4695337A (en) * 1985-02-01 1987-09-22 Baxter Travenol Laboratories, Inc. Apparatus and method for attaching a fitment to a web of film
US5203819A (en) * 1986-01-17 1993-04-20 Baxter International Inc. Apparatus for attaching a fitment to a web of film
US4779397A (en) * 1987-03-09 1988-10-25 Baxter Travenol Laboratories, Inc. Apparatus and method for attaching a fitment to a web of film
JPS6420640A (en) * 1987-07-15 1989-01-24 Toshiba Corp Semiconductor device and manufacture thereof
DK161189C (da) * 1989-07-07 1991-11-25 Polysheet As Apparat til lokal fastgoerelse af beslag i en af termoplast bestaaende foliebane
JP2604107B2 (ja) * 1993-03-29 1997-04-30 萩原工業株式会社 鳩目付き合成樹脂シート
US5722127A (en) * 1994-03-07 1998-03-03 Tailored Technologies, Inc. Tailored and protective undergarments
FR2769258B1 (fr) * 1997-10-07 1999-12-24 Seb Sa Procede d'assemblage rotatif d'une piece plastique rigide sur une structure souple
US5931086A (en) * 1997-11-05 1999-08-03 Interbake Dairy Ingredients Apparatus for the assembly of sandwich products
US20060242927A1 (en) * 2005-04-27 2006-11-02 Label Makers, Inc. Lid dispensing system with stock cartridges
CH703963A2 (fr) * 2010-10-25 2012-04-30 Guy Borgeat Machine de gonflage remplissage automatique de coussin de gaz, notamment d'air, pour emballage, et son utilisation pour gonfler et remplir des coussins.
DE102015119568B3 (de) * 2015-11-12 2017-01-19 Schuler Pressen Gmbh Zuführvorrichtung für Rondenringe
CN108453981B (zh) * 2018-02-24 2024-01-30 深州市工程塑料有限公司 重金属离子吸附膜连续压延设备及用其制备吸附膜的方法
CN112936973A (zh) * 2021-01-25 2021-06-11 顾祯 一种粉饼压粉机上料装置
CN115494100B (zh) * 2022-11-17 2023-03-14 济南弗莱德科技有限公司 一种在线油品分析仪

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3219507A (en) * 1961-02-20 1965-11-23 Magee Carpet Co Method of applying plastic sheet to pile fabric backing

Also Published As

Publication number Publication date
DK130239B (da) 1975-01-27
YU103573A (en) 1981-02-28
GB1416374A (en) 1975-12-03
JPS5419907B2 (fi) 1979-07-18
HU171356B (hu) 1977-12-28
NO139257B (no) 1978-10-23
FR2180900A1 (fi) 1973-11-30
IT982800B (it) 1974-10-21
BE797973A (nl) 1973-07-31
AU461261B2 (en) 1975-05-22
SE379959B (fi) 1975-10-27
HK67176A (en) 1976-11-05
SU498898A3 (ru) 1976-01-05
US3909340A (en) 1975-09-30
AR199779A1 (es) 1974-09-30
FR2180900B1 (fi) 1977-04-29
DE2317015A1 (de) 1973-11-08
NO139257C (no) 1979-01-31
RO72851A (ro) 1982-09-09
NL7304960A (fi) 1973-10-23
JPS4921461A (fi) 1974-02-25
PL85517B1 (fi) 1976-04-30
NL178232B (nl) 1985-09-16
CH560096A5 (fi) 1975-03-27
AT347114B (de) 1978-12-11
DD103190A5 (fi) 1974-01-12
FI55308C (fi) 1979-07-10
YU35977B (en) 1981-11-13
ATA303473A (de) 1978-04-15
DE2317015B2 (de) 1977-01-20
BR7302800D0 (pt) 1974-07-18
ZA732470B (en) 1974-02-27
AU5437773A (en) 1974-10-17
CS175455B2 (fi) 1977-05-31
NL178232C (nl) 1986-02-17
DK130239C (fi) 1975-06-30
FI55308B (fi) 1979-03-30

Similar Documents

Publication Publication Date Title
CA1014310A (en) Method and apparatus for manufacturing a thermoplastic having fastener elements
CA984270A (en) Method and apparatus for arranging thin wires in a thermoplastic
CA1004814A (en) Method and apparatus for producing oriented plastic shotshells
ZA747761B (en) A laminate and a method for manufacturing the same
CA980094A (en) Slide fastener and method and apparatus for making the same
CA982045A (en) Method and apparatus for forming holes in a material
AU5840973A (en) Method and apparatus for making a composite plastic article and article
CA957011A (en) Process and apparatus for deforming a thermoplastic layer
AU481555B2 (en) Method and apparatus for making a fastener
AU5879773A (en) Method and apparatus for making a fastener
CA983238A (en) Iostropic carbon and a method for making the same
CA996951A (en) Substituted formylazapentadienenitriles and a method for producing them
CA898265A (en) Silacyclopentenes and a method for making same
CA902835A (en) Silacyclopentenes and a method for making same
CA914007A (en) Method for producing a photographic material and the product thereof
CA992730A (en) Method for making slideless fastener and the product made thereby
CA894778A (en) 19-hydroxy-3-aza-a-homo-steroids and a process for their manufacture
CA905194A (en) Photochromic material and a method for making the same
CA891288A (en) Method and apparatus for forming a filter element
CA1012051A (en) Method and apparatus for making a package
CA893082A (en) Conveyor belt and a process for the manufacture thereof
IL43636A0 (en) Plastic-metal laminate and a method for its manufacture
CA907300A (en) Method and apparatus for manufacturing a plied yarn
CA913952A (en) Method and apparatus for projecting a scene
CA904303A (en) Modified polymeric material and method for producing same