GB1470584A - Apparatus and method for making a metal print drum - Google Patents

Apparatus and method for making a metal print drum

Info

Publication number
GB1470584A
GB1470584A GB1220274A GB1220274A GB1470584A GB 1470584 A GB1470584 A GB 1470584A GB 1220274 A GB1220274 A GB 1220274A GB 1220274 A GB1220274 A GB 1220274A GB 1470584 A GB1470584 A GB 1470584A
Authority
GB
United Kingdom
Prior art keywords
drum
sleeve
metal powder
bag
mould
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
GB1220274A
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.)
Mohawk Data Sciences Corp
Original Assignee
Mohawk Data Sciences Corp
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 Mohawk Data Sciences Corp filed Critical Mohawk Data Sciences Corp
Publication of GB1470584A publication Critical patent/GB1470584A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J1/00—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies
    • B41J1/22—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies with types or dies mounted on carriers rotatable for selection
    • B41J1/32—Typewriters or selective printing mechanisms characterised by the mounting, arrangement or disposition of the types or dies with types or dies mounted on carriers rotatable for selection the plane of the type or die face being parallel to the axis of rotation, e.g. with type on the periphery of cylindrical carriers
    • 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
    • B30B11/001—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a flexible element, e.g. diaphragm, urged by fluid pressure; Isostatic presses
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/044—Rubber mold

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Powder Metallurgy (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

1470584 Moulding metal printing cylinders by isostatic compression MOHAWK DATA SCIENCES CORP 19 March 1974 [9 May 1973] 12202/74 Heading B5A [Also in Division C7] A printing cylinder having raised characters on its outer surface is formed by isostatic compression of metal powder in the apparatus shown in Fig. 1, in which an expandable bag 32 may be pressurized to compact metal powder against a compressible sleeve 40 having character depressions 49 formed in its inner surface, the sleeve 40 being supported by rings 34, 38 and 42 between upper and lower rams 14 and 16 and an outer metal enclosure 20. A support cylinder 26 within the expandable bag 32 has bores 47 for the supply of pressure fluid 48 (glycerine) to the interior of the bag, via a bore 22 in the lower ram 16 and hydraulic pressure multiplier 52, from an hydraulic pump 54. To form the printing cylinder, the mould 18 comprising parts 26, 32, 34, 38 and 40 is removed from between upper and lower rams 14, 16, and filled with metal powder, filling being facilitated by vibration. The top ring 42 is then placed on the mould 18, which is then positioned between rams 14, 16 and lowered into enclosure 20. The metal powder is precompressed using the upper ram 14, after which the bag 32 is pressurized to assist compression, the pressure produced by the ram 14 being maintained higher than that produced by the bag 32. The mould and compacted metal drum are then removed by raising ram 16, and the mould disassembled to give the drum still inside the ring 38 and sleeve 40. The drum is machined, whilst still inside the ring 38, to the required internal diameter. The drum and sleeve are then pushed out of the ring 38, and the sleeve 40 removed from the drum by cutting. Before sintering, a mounting core which has also been produced by isostatic compaction of metal powder is inserted in the drum, and the whole sintered to give the final cylinder. As described with reference to Fig. 3, not shown, the character sleeve 40 may be produced by injection moulding of a glass fibre filled polyurethane composition.
GB1220274A 1973-05-09 1974-03-19 Apparatus and method for making a metal print drum Expired GB1470584A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US358560A US3922127A (en) 1973-05-09 1973-05-09 Apparatus for making a metal print drum

Publications (1)

Publication Number Publication Date
GB1470584A true GB1470584A (en) 1977-04-14

Family

ID=23410156

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1220274A Expired GB1470584A (en) 1973-05-09 1974-03-19 Apparatus and method for making a metal print drum

Country Status (4)

Country Link
US (1) US3922127A (en)
JP (1) JPS5014401A (en)
DE (1) DE2418814A1 (en)
GB (1) GB1470584A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2137134A (en) * 1983-02-10 1984-10-03 Laeis Werke Ag Method and apparatus for isostatic moulding of hollow articles having protrusions
WO1987001317A1 (en) * 1985-09-04 1987-03-12 Kb Cold Isostatic Press Systems Cips Method of producing a cylinder lining device
US5310320A (en) * 1990-04-27 1994-05-10 Svenska Rotor Maskiner Ab Rotor for a rotary screw machine having internal member and external shell made of pressed metal powder
CN102358085A (en) * 2011-11-01 2012-02-22 四川省电力公司自贡电业局 Type mould for hydraulic typewriter

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5372709A (en) * 1976-12-10 1978-06-28 Brother Ind Ltd Printing hammer for printer
US4087221A (en) * 1977-01-31 1978-05-02 Remington Arms Company, Inc. Apparatus for molding powder metal parts
FR2607445B1 (en) * 1986-11-27 1993-07-30 Banque De France METHOD FOR THE SERIAL MANUFACTURE OF DIRECT TYPOGRAPHIC PRINTING ELEMENTS IN STEEL, AND APPARATUS FOR IMPLEMENTING THE METHOD
US5762843A (en) * 1994-12-23 1998-06-09 Kennametal Inc. Method of making composite cermet articles
US7404707B2 (en) * 2001-04-23 2008-07-29 Leco Corporation Sample mounting press
TWI385139B (en) * 2005-02-01 2013-02-11 Tosoh Corp A sintered body, a sputtering target and a forming die, and a sintered body manufacturing method using the same
US8910568B1 (en) 2009-10-29 2014-12-16 Us Synthetic Corporation Reinforced press base, piston cavity sleeve, and method of reinforcing a press base
US11534999B1 (en) 2009-10-29 2022-12-27 Us Synthetic Corporation Reinforced press base, strengthening ring, and method of reinforcing a press base
US20140183798A1 (en) * 2012-12-28 2014-07-03 Smith International, Inc. Manufacture of cutting elements having lobes
CN106029265B (en) * 2013-12-23 2018-12-14 史密斯国际有限公司 The manufacture of cutting element with protrusion

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2091973A (en) * 1935-06-27 1937-09-07 Gen Motors Corp Apparatus for making ceramic articles
US2582922A (en) * 1949-05-27 1952-01-15 Henry L Crowley & Company Inc Apparatus for molding articles
US2558823A (en) * 1949-05-27 1951-07-03 Henry L Crowley Apparatus for molding articles
US2714226A (en) * 1949-10-11 1955-08-02 Westinghouse Electric Corp Apparatus for molding plastic materials
US2871541A (en) * 1957-07-29 1959-02-03 United Concrete Pipe Corp Mold for the end of concrete pipe and the like
US2965946A (en) * 1958-10-02 1960-12-27 Colgate Palmolive Co Apparatus and process for pressing detergent bars and cakes
US3034191A (en) * 1960-10-05 1962-05-15 Gen Motors Corp Isostatic molding apparatus
US3477096A (en) * 1967-07-20 1969-11-11 Nat Forge Co Self-closing vacuum port for dry bag isostatic moulding press
US3619446A (en) * 1968-02-02 1971-11-09 Rowland Products Inc Method for making resiliently faced rolls
US3561079A (en) * 1968-03-11 1971-02-09 Robinson Clay Product Co The Apparatus for pressing of clay pipe using an elastomeric mandrel
US3594877A (en) * 1969-10-24 1971-07-27 Yuken Kogyo Co Ltd Apparatus for manufacturing ceramic articles

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2137134A (en) * 1983-02-10 1984-10-03 Laeis Werke Ag Method and apparatus for isostatic moulding of hollow articles having protrusions
WO1987001317A1 (en) * 1985-09-04 1987-03-12 Kb Cold Isostatic Press Systems Cips Method of producing a cylinder lining device
US5310320A (en) * 1990-04-27 1994-05-10 Svenska Rotor Maskiner Ab Rotor for a rotary screw machine having internal member and external shell made of pressed metal powder
CN102358085A (en) * 2011-11-01 2012-02-22 四川省电力公司自贡电业局 Type mould for hydraulic typewriter
CN102358085B (en) * 2011-11-01 2016-02-10 四川省电力公司自贡电业局 Type mould for hydraulic typewriter

Also Published As

Publication number Publication date
JPS5014401A (en) 1975-02-15
US3922127A (en) 1975-11-25
DE2418814A1 (en) 1974-11-21

Similar Documents

Publication Publication Date Title
GB1470584A (en) Apparatus and method for making a metal print drum
GB1333352A (en) High production isostatic moulding device
US4496299A (en) Unit containing a moulding tool for semi-isostatic compaction of a powder contained in the press tool cavity
US3897531A (en) Manufacture of compressed-powder bodies
US3591903A (en) Isostatic press with multipart mold
GB1426938A (en) Apparatus for compacting material
GB1526316A (en) Process and apparatus for the manufacture of mouldings of foamed plastics by a casting process
GB1218710A (en) Foundry squeeze mechanism
US3618164A (en) Isostatic press
GB1151898A (en) Foundry Moulding Machine.
GB1535230A (en) Hydraulic presses
CN210817458U (en) Powder metallurgy rotating ring compacting die
US3397424A (en) Press for pressing of fibre materials such as dried wood pulp, cellulose, etc.
GB1469912A (en) Isostatic press
GB1278109A (en) A method of and apparatus for manufacturing rods or tubes from powder
GB1395180A (en) Method of and press for compacting materials in powder form to produce pieces to be sintered
GB1370297A (en) Machine for isostatic moulding
GB1213344A (en) Improved powder-compacting press
NO854486L (en) CONSOLIDATION TOOL FOR COMPACTING METAL POWDER.
GB1127447A (en) Tooling and method for producing compacts in powder metallurgy
IL25431A (en) Shaping bodies of fibrous cement
SU865529A1 (en) Pressure die for hydrostatic moulding of hollow articles
SU778871A1 (en) Apparatus for making holes
DE3161158D1 (en) Arrangement for die casting metals and alloys
SU942889A1 (en) Injection mould for pressing powder layer on metallic disc surface

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee