GB677794A - Improvements in screw presses - Google Patents

Improvements in screw presses

Info

Publication number
GB677794A
GB677794A GB14058/51A GB1405851A GB677794A GB 677794 A GB677794 A GB 677794A GB 14058/51 A GB14058/51 A GB 14058/51A GB 1405851 A GB1405851 A GB 1405851A GB 677794 A GB677794 A GB 677794A
Authority
GB
United Kingdom
Prior art keywords
outlet
thread
threads
screws
screw
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
GB14058/51A
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
Priority to GB14058/51A priority Critical patent/GB677794A/en
Publication of GB677794A publication Critical patent/GB677794A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B9/00—Presses specially adapted for particular purposes
    • B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
    • B30B9/12—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing
    • B30B9/16—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing operating with two or more screws or worms

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filtration Of Liquid (AREA)

Abstract

677,794. Presses for separating liquids from solids. HARTNER, H. A. June 6,1950, No. 14058/51. Class 46 In presses of the kind in which the threads of a pair of screws intermesh with considerable lateral clearance between their threads relative to the thickness of the latter and the core and thread diameters vary relatively so that the volumetric capacity of the space between adjacent turns of the thread of each screw decreases from the inlet to the outlet, the threads and cores are substantially in peripheral contact, throughout the operative length of the screws. In Fig. 1, the screw axes are parallel while the thread diameters 7, 8 decrease towards the outlet 6 and the core diameters 3, 4 increase. In Fig. 2 the cores are cylindrical while their axes are inclined at a small angle towards the outlet. The thread diameters decrease as before. In Fig. 3 both core and thread diameters decrease towards the outlet the screw axes again being inclined. In all cases the pitch preferably decreases towards the outlet, the last one or two threads having a greatly decreased pitch. Where the screw axes are parallel short cylindrical-thread screws, or screw portions with cylindrical cores, may be incorporated at the inlet or outlet end or both. A portion of each of the screws next to the outlet may be formed as a removable and suitably tubular end piece, preferably cylindrical. End pieces with different thread pitches may thus be inserted so that the pressure gradient near the outlet may be readily altered to accommodate different raw materials. Specification 458,970 is referred to.
GB14058/51A 1948-07-14 1950-06-06 Improvements in screw presses Expired GB677794A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB14058/51A GB677794A (en) 1948-07-14 1950-06-06 Improvements in screw presses

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO828483X 1948-07-14
GB14058/51A GB677794A (en) 1948-07-14 1950-06-06 Improvements in screw presses

Publications (1)

Publication Number Publication Date
GB677794A true GB677794A (en) 1952-08-20

Family

ID=26250240

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14058/51A Expired GB677794A (en) 1948-07-14 1950-06-06 Improvements in screw presses

Country Status (1)

Country Link
GB (1) GB677794A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981003639A1 (en) * 1980-06-13 1981-12-24 Stord Bartz As Screw press arrangement
WO1986007306A1 (en) * 1985-06-03 1986-12-18 Gay's (Hampton) Limited Liquid extraction stage for an extruder
EP0358837A1 (en) * 1988-09-14 1990-03-21 FRATELLI BABBINI & C. sas Dehydrating screw press with two or more helical elements with intermeshing profiles
EP0773100A1 (en) 1995-11-10 1997-05-14 F.lli Babbini di Lionello Babbini & C. S.a.s. Screw press for dehydrating fibrous materials
EP1066953A1 (en) * 1999-07-08 2001-01-10 Lionello Babbini High-efficiency vertical screw-feeder press for dehydrating liquid-containing products
WO2005025847A1 (en) * 2003-09-12 2005-03-24 New Pressing Technology Di Babbini Maria Teresa E C. S.R.L. Screw press for squeezing out fibrous material

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1981003639A1 (en) * 1980-06-13 1981-12-24 Stord Bartz As Screw press arrangement
US4438691A (en) * 1980-06-13 1984-03-27 Stord Bartz A/S Screw press arrangements
WO1986007306A1 (en) * 1985-06-03 1986-12-18 Gay's (Hampton) Limited Liquid extraction stage for an extruder
AU601685B2 (en) * 1985-06-03 1990-09-20 Gay's (Hampton) Limited Liquid extraction stage for an extruder
EP0358837A1 (en) * 1988-09-14 1990-03-21 FRATELLI BABBINI & C. sas Dehydrating screw press with two or more helical elements with intermeshing profiles
EP0773100A1 (en) 1995-11-10 1997-05-14 F.lli Babbini di Lionello Babbini & C. S.a.s. Screw press for dehydrating fibrous materials
EP1066953A1 (en) * 1999-07-08 2001-01-10 Lionello Babbini High-efficiency vertical screw-feeder press for dehydrating liquid-containing products
WO2005025847A1 (en) * 2003-09-12 2005-03-24 New Pressing Technology Di Babbini Maria Teresa E C. S.R.L. Screw press for squeezing out fibrous material
US7461591B2 (en) 2003-09-12 2008-12-09 New Pressing Technology Di Babbini Maria Teresa E C. S.R.L. Screw press for squeezing out fibrous material

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