GB884219A - Improvements in or relating to dielectric heating apparatus - Google Patents

Improvements in or relating to dielectric heating apparatus

Info

Publication number
GB884219A
GB884219A GB20820/59A GB2082059A GB884219A GB 884219 A GB884219 A GB 884219A GB 20820/59 A GB20820/59 A GB 20820/59A GB 2082059 A GB2082059 A GB 2082059A GB 884219 A GB884219 A GB 884219A
Authority
GB
United Kingdom
Prior art keywords
index position
roller
work
welding
welding press
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
GB20820/59A
Inventor
Edmund Christopher Stanley
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.)
Radyne Ltd
Original Assignee
Radyne Ltd
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 Radyne Ltd filed Critical Radyne Ltd
Priority to GB20820/59A priority Critical patent/GB884219A/en
Publication of GB884219A publication Critical patent/GB884219A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
    • B29C65/7879—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined said parts to be joined moving in a closed path, e.g. a rectangular path
    • B29C65/7882—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined said parts to be joined moving in a closed path, e.g. a rectangular path said parts to be joined moving in a circular path
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/04—Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General 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
    • B29C66/71—General 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

884,219. Seaming non-metallic sheet material. RADYNE Ltd. June 14, 1960 [June 17, 1959], 20820/59. Class 42 (1). A rotatable work-table for a welding press has a plurality of work areas, an indexing means whereby the table can be rotated to bring each work area in turn into operative index position in the welding press and a braking device operative shortly before an index position is reached to brake the rotation of the work-table. The invention is particularly applicable to the welding of thermoplastic material by dielectric heating and in the Fig. 1 indicates a rotating table which passes between the electrodes 8 of the welding press. A roller 2 is arranged to run along the periphery of the table and is carried by a beam 3 pivoted to a fixed point 4, the other end of the beam being connected with an air cylinder 7. A recess 6 is provided in the edge of table 1 just prior to each index position and is shaped with a gently sloping lead-in side 6a and a steep lead-out side 6b. Thus, shortly before the table 1 reaches an index position it must move the roller 2 rapidly outwards against the spring 5, thus producing a braking action on the table. Additional pressure is also applied to the movement of the roller outwards by air cylinder 7 (or an electromagnetic solenoid).
GB20820/59A 1959-06-17 1959-06-17 Improvements in or relating to dielectric heating apparatus Expired GB884219A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB20820/59A GB884219A (en) 1959-06-17 1959-06-17 Improvements in or relating to dielectric heating apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB20820/59A GB884219A (en) 1959-06-17 1959-06-17 Improvements in or relating to dielectric heating apparatus

Publications (1)

Publication Number Publication Date
GB884219A true GB884219A (en) 1961-12-13

Family

ID=10152245

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20820/59A Expired GB884219A (en) 1959-06-17 1959-06-17 Improvements in or relating to dielectric heating apparatus

Country Status (1)

Country Link
GB (1) GB884219A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987002607A1 (en) * 1985-10-26 1987-05-07 Hans Obermeier High-frequency welding installation
GB2369084A (en) * 2000-10-20 2002-05-22 Durakon Ind Inc Rotary panel thermoforming machine with carousel conveyor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987002607A1 (en) * 1985-10-26 1987-05-07 Hans Obermeier High-frequency welding installation
US4822447A (en) * 1985-10-26 1989-04-18 Hans Obermeier High-frequency welding installation
GB2369084A (en) * 2000-10-20 2002-05-22 Durakon Ind Inc Rotary panel thermoforming machine with carousel conveyor
GB2369084B (en) * 2000-10-20 2004-10-06 Durakon Ind Inc Six station rotary thermoforming machine

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