GB952006A - Multi-layer tablet making machines - Google Patents

Multi-layer tablet making machines

Info

Publication number
GB952006A
GB952006A GB6666/62A GB666662A GB952006A GB 952006 A GB952006 A GB 952006A GB 6666/62 A GB6666/62 A GB 6666/62A GB 666662 A GB666662 A GB 666662A GB 952006 A GB952006 A GB 952006A
Authority
GB
United Kingdom
Prior art keywords
die
powder
tamping
layer
sampling
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
GB6666/62A
Inventor
Frank Thomas Stott
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.)
John Holroyd and Co Ltd
Original Assignee
John Holroyd and Co 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 John Holroyd and Co Ltd filed Critical John Holroyd and Co Ltd
Priority to GB6666/62A priority Critical patent/GB952006A/en
Priority to US255967A priority patent/US3158109A/en
Priority to DEH48282A priority patent/DE1289742B/en
Publication of GB952006A publication Critical patent/GB952006A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/32—Discharging presses
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/50—Removing moulded articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
    • B30B11/08—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space co-operating with moulds carried by a turntable
    • B30B11/085—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space co-operating with moulds carried by a turntable for multi-layer articles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Basic Packing Technique (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

952,006. Rotary-table compression moulding machines. JOHN HOLROYD & CO. Ltd. Jan. 22, 1963 [Feb. 21, 1962], No. 6666/62. Heading B5A. A multi-layer tablet making machine comprising a plurality of dies each of which successively receives a plurality of powder fills, which fills are tamped prior to the successive fill entering the die, is characterised in that the tamped layer or layers can be ejected for sampling, compression means being provided whereby the said layer or layers to be sampled are compressed sufficiently to ensure their integrity prior to such ejection. In the machine as described, dies 13, Fig. 4, are located on a rotary table and are fed with powder from three hoppers. Each die 13 is associated with upper and lower tamping plungers 15, 20 the heads 16, 21 of which ride cam tracks which control their entry and withdrawal from the die. Between the first and second and the second and third feeding stations are a pair of upper and lower tamping rollers 26, 27 which co-operate with the plunger heads 16, 21 to effect tamping. Each lower roller is vertically adjustable in a U-shaped member by a screw actuated wedge. Each of the upper roller 26 is carried by a pivoted lever 28 which is normally in the position shown but which can be lowered through a normally operable telemotor link to cause the upper plunger to compress the powder in the die to a greater extent. The telemotor link also causes a sampling cam 46 to move above the lower cam track so that the lower plunger 20 raises the tamped layer or layers to the level of the table so as to be deflected to a sampling shoot. The lower cam track includes weight adjustment cams which operate the -lower plungers to eject a small amount of powder after each fill. Upper and lower rollers at the end of the cam tracks effect a final tamping before the tablet is deflected into a take-off shoot.
GB6666/62A 1962-02-21 1962-02-21 Multi-layer tablet making machines Expired GB952006A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB6666/62A GB952006A (en) 1962-02-21 1962-02-21 Multi-layer tablet making machines
US255967A US3158109A (en) 1962-02-21 1963-02-04 Multi-layer tablet making machines
DEH48282A DE1289742B (en) 1962-02-21 1963-02-18 Procedure for taking pre-compressed test tablets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6666/62A GB952006A (en) 1962-02-21 1962-02-21 Multi-layer tablet making machines

Publications (1)

Publication Number Publication Date
GB952006A true GB952006A (en) 1964-03-11

Family

ID=9818606

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6666/62A Expired GB952006A (en) 1962-02-21 1962-02-21 Multi-layer tablet making machines

Country Status (3)

Country Link
US (1) US3158109A (en)
DE (1) DE1289742B (en)
GB (1) GB952006A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0460295A1 (en) * 1990-06-08 1991-12-11 Wilhelm Fette GmbH Tabletting machine
EP0572816A1 (en) * 1992-06-02 1993-12-08 Wilhelm Fette GmbH Process and apparatus for making double-layered tablets on a two station rotary press
EP2707213B1 (en) 2011-05-10 2020-02-26 Fette Compacting GmbH Rotary press and method for operating a rotary press

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2639090C3 (en) * 1976-08-31 1979-12-06 Wilhelm Fette Gmbh, 2057 Schwarzenbek Tablet machine
US4298563A (en) * 1978-10-19 1981-11-03 Ptx-Pentronix, Inc. Apparatus and method for compacting prismatic or pyramidal articles from powder material
US4243362A (en) * 1979-06-04 1981-01-06 Globe-Union Inc. Composite molding apparatus for articles from two materials having a rotary mold block which includes pins for providing core areas
US5213738A (en) * 1990-05-15 1993-05-25 L. Perrigo Company Method for making a capsule-shaped tablet
US5089270A (en) * 1990-05-15 1992-02-18 L. Perrigo Company Capsule-shaped tablet
DE4018401A1 (en) * 1990-06-08 1991-12-12 Fette Wilhelm Gmbh CIRCULAR TABLETING MACHINE
US5158728A (en) * 1991-04-12 1992-10-27 Elizabeth-Hata International, Inc. Multi-layer medicinal tablet forming machine and method for using the same
CA2094888A1 (en) * 1992-08-24 1994-02-25 Bradley W. Smith Gas generant body having pressed-on burn inhibitor layer
US5322655A (en) * 1993-02-19 1994-06-21 Thomas Engineering, Inc. Method for monitoring and controlling the weights of each layer of a multilayer tablet
US5476017A (en) * 1993-10-15 1995-12-19 Acutrol Co. Unit dose bulk material sampling apparatus
US6919373B1 (en) 1996-11-12 2005-07-19 Alza Corporation Methods and devices for providing prolonged drug therapy
ES2178078T3 (en) * 1997-07-23 2002-12-16 Kilian Gmbh & Co Kg PRESS OF TABLETS WITH CONCENTRAL MARCH.
KR100827254B1 (en) 1998-06-03 2008-05-07 알자 코포레이션 Methods and devices for providing prolonged drug therapy
DE102007061081B4 (en) * 2007-12-14 2010-04-08 Fette Gmbh Method for testing multilayer tablets
FR2951989B1 (en) * 2009-10-30 2012-02-03 Medelpharm INSTALLATION FOR PRODUCING A SOLID PRODUCT FROM ONE OR MORE PULVERULENT MATERIALS
US9839212B2 (en) 2015-04-16 2017-12-12 Bio-Lab, Inc. Multicomponent and multilayer compacted tablets
US11927507B2 (en) 2018-04-12 2024-03-12 Pharma and Nutraceutical PD Pty Ltd Sampling device
CN109968726A (en) * 2019-05-08 2019-07-05 聊城泰合制药装备有限公司 One kind being used for the molding rotary tablet machine of double-colored bait

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB796810A (en) * 1954-09-02 1958-06-18 Evans Medical Supplies Ltd Improvements relating to apparatus for compressing a coating of comminuted material around a preformed core
US2944493A (en) * 1956-11-23 1960-07-12 Stokes F J Corp Multi-layer tablet manufacture
US2997741A (en) * 1959-01-20 1961-08-29 John Holroyd & Company Ltd Rotary compacting machines
DE1111340B (en) * 1960-02-15 1961-07-20 Kilian & Co G M B H Method and apparatus for producing multilayer tablets

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0460295A1 (en) * 1990-06-08 1991-12-11 Wilhelm Fette GmbH Tabletting machine
EP0572816A1 (en) * 1992-06-02 1993-12-08 Wilhelm Fette GmbH Process and apparatus for making double-layered tablets on a two station rotary press
EP2707213B1 (en) 2011-05-10 2020-02-26 Fette Compacting GmbH Rotary press and method for operating a rotary press

Also Published As

Publication number Publication date
DE1289742B (en) 1969-02-20
US3158109A (en) 1964-11-24

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