GB1187271A - Improvements in and relating to Screens - Google Patents

Improvements in and relating to Screens

Info

Publication number
GB1187271A
GB1187271A GB03857/67A GB1385767A GB1187271A GB 1187271 A GB1187271 A GB 1187271A GB 03857/67 A GB03857/67 A GB 03857/67A GB 1385767 A GB1385767 A GB 1385767A GB 1187271 A GB1187271 A GB 1187271A
Authority
GB
United Kingdom
Prior art keywords
channel
screen
frame
spring
mounting portion
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
GB03857/67A
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.)
Orville Simpson Co
Original Assignee
Orville Simpson Co
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 Orville Simpson Co filed Critical Orville Simpson Co
Publication of GB1187271A publication Critical patent/GB1187271A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/48—Stretching devices for screens
    • B07B1/49—Stretching devices for screens stretching more than one screen or screen section by the same or different stretching means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/48—Stretching devices for screens
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combined Means For Separation Of Solids (AREA)

Abstract

1,187,271. Screening apparatus. ORVILLE SIMPSON CO. 23 March, 1967 [25 March, 1966], No. 13857/67. Heading B2H. [Also in Divisions E2 and F2] In an arrangement wherein a screen 15 is held in a frame 10 and tensioned by a plurality of S-shaped spring tensioners 17, formed e.g. of strip spring material and used e.g. for releasably mounting the screen in a power driven sifting and screening machine, each spring tensioner comprises a mounting portion 39 of approximate 'C' shape which is adapted to be received and retained within the correspondingly shaped frame channel 18, 22, and a screen tensioning portion 70 which is of general 'U' shape, the mounting portion 39 comprising upper and lower lobes 44, 45 which are joined, at one side only, by a flexible, preferably inwardly bent, section 46 which allows the lobes to be displaced towards each other, and the tensioning portion 40 consisting of a lower bend 48 one leg 47 of which has an outwardly inclined tab 41 for engaging in a corresponding screen opening 53. The frame, which may be of curved or polygonal shape, and which is made e.g. of stainless steel or aluminium, has a lower shoulder 23 and flange 24 which facilitates introduction of the spring tensioners into the channel 18- 22, the spring tensioners being slidable longitudinally of the channel to position them for engagement with a corresponding opening 53 after which, tensioning of the U-shaped legs 47-49, causes the mounting portion to be constrained within the channel. A removable sealing and cushioning strip 35 has an internal cavity 60 for releasably engaging studs. 26 on the lower face of the frame 10.
GB03857/67A 1966-03-25 1967-03-23 Improvements in and relating to Screens Expired GB1187271A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US537480A US3406823A (en) 1966-03-25 1966-03-25 Releasable screen tensioning and connecting means

Publications (1)

Publication Number Publication Date
GB1187271A true GB1187271A (en) 1970-04-08

Family

ID=24142821

Family Applications (1)

Application Number Title Priority Date Filing Date
GB03857/67A Expired GB1187271A (en) 1966-03-25 1967-03-23 Improvements in and relating to Screens

Country Status (5)

Country Link
US (1) US3406823A (en)
BE (1) BE693411A (en)
DE (1) DE1284819B (en)
FR (1) FR1512223A (en)
GB (1) GB1187271A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3557953A (en) * 1968-12-24 1971-01-26 Tyler Inc W S Tensioned screen with seal
US4390420A (en) * 1981-11-12 1983-06-28 Combustion Engineering, Inc. Wire cloth tensioning apparatus
DE9313931U1 (en) * 1993-09-15 1994-01-13 Salzmann, Manfred, 58511 Lüdenscheid Sieve
US6669027B1 (en) 1999-03-19 2003-12-30 Derrick Manufacturing Corporation Vibratory screening machine and vibratory screen and screen tensioning structure
US20110036759A1 (en) * 2005-12-06 2011-02-17 Rotex, Inc. Screening machine and associated screen panel
US8261915B2 (en) 2005-12-06 2012-09-11 Rotex Global, Llc Screening machine and associated screen panel
US20070125688A1 (en) * 2005-12-06 2007-06-07 Rotex, Inc. Screening machine, associated screen panel and seal
US20080223761A1 (en) * 2007-03-14 2008-09-18 Rotex, Inc. Sealing Mechanism and Associated Sealing Method for Screening Machines
CN113333263B (en) * 2021-05-28 2022-11-01 汪洋 Screening equipment and screening process for low-fluidity submicron ceramic granulated powder

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US928006A (en) * 1906-07-26 1909-07-13 Nicholas L Thomas Key-hook.
US1620372A (en) * 1926-11-17 1927-03-08 Martha M Maider Shoulder-strap fastener
US1739057A (en) * 1927-08-22 1929-12-10 Andrew Hoffman Mfg Company Device for supporting sheets of paper and the like
US2130017A (en) * 1935-06-22 1938-09-13 Joseph D Lewis Sealing gasket
US2114406A (en) * 1936-05-12 1938-04-19 Lowe E Simpson Sieve frame
GB674923A (en) * 1941-03-22 1952-07-02 Charles De Keyser Improvements in or relating to sifting apparatus
US2596780A (en) * 1947-07-09 1952-05-13 Ohio Rubber Co Resilient member and fastening device therefor
DE821311C (en) * 1949-12-10 1951-11-15 Zuendapp Werke G M B H Insert frame for plansifter
US2720014A (en) * 1952-04-21 1955-10-11 Ferris H Caldwell Safety snap fastener for fishing tackle
GB790960A (en) * 1955-03-15 1958-02-19 United Carr Fastener Corp Improvements in and relating to resilient fastening devices for attaching an article to an apertured support

Also Published As

Publication number Publication date
BE693411A (en) 1967-07-03
DE1284819B (en) 1968-12-05
US3406823A (en) 1968-10-22
FR1512223A (en) 1968-02-02

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE Patent expired