GB1206630A - Cover hold-down clamp for screening mahines - Google Patents

Cover hold-down clamp for screening mahines

Info

Publication number
GB1206630A
GB1206630A GB54335/67A GB5433567A GB1206630A GB 1206630 A GB1206630 A GB 1206630A GB 54335/67 A GB54335/67 A GB 54335/67A GB 5433567 A GB5433567 A GB 5433567A GB 1206630 A GB1206630 A GB 1206630A
Authority
GB
United Kingdom
Prior art keywords
box
screen
cover
toggle
handle
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
GB54335/67A
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 GB1206630A publication Critical patent/GB1206630A/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
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/20—Clamps
    • Y10T292/202—Hatch fastener

Landscapes

  • Combined Means For Separation Of Solids (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)

Abstract

1,206,630. Screening machine. ORVILLE SIMPSON CO. 29 Nov., 1967 [3 Jan., 1967], No. 54335/67. Heading B2H. [Also in Division E2] In a screening machine comprising a screen box 12 in which one or more screens 34 are mounted, a cover 17 is secured to the box by means of hold-down clamps 21 each of which comprises a handle 43 pivotably connected at or near its end to one end of a toggle 41 which is pivotably connected at its other end to the box 12, one or more projecting pins 70, 71 being provided on the handle off-set from its pivotal axis 68 so that as the handle is swung downwardly, the pin (or pins) engages (or engage) in a recess (or recesses) formed in a latch 73 welded to the cover 17 whereby the latter is clamped on to the box 12. The toggle 41 is connected to the box 12 by means of a bolt 42 which passes through a pin 54 pivotable in a bracket 56 on the box 12 and which is adjustably screwed in the toggle. Pins 80, 81 on the toggle limit the downward movement of the handle 43. The cover 17 is formed with side branches 27, 28, the branch 27 providing a dust guard and the branch 28 deceiving a rubber seal strip 29 which is compressed on to the screen periphery when the cover is clamped down. The screen 34 is tensioned by springs 36 across a screen frame 33 provided with a rubber seal or compression seal 37 which bears upon the box 12 or, in the case of a number of parallel screens, upon the next lower screen. The box is inclined to the horizontal being supported on slide pads at its lower end. An oscillatory, gyratory or rotary motion is imparted to the upper end of the box by means of an eccentric or other means driven by an electric motor. In modifications, the cover 17 may be clamped to the screen frame or to the box rather than on to the screen as shown.
GB54335/67A 1967-01-03 1967-11-29 Cover hold-down clamp for screening mahines Expired GB1206630A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US60688667A 1967-01-03 1967-01-03

Publications (1)

Publication Number Publication Date
GB1206630A true GB1206630A (en) 1970-09-23

Family

ID=24429892

Family Applications (1)

Application Number Title Priority Date Filing Date
GB54335/67A Expired GB1206630A (en) 1967-01-03 1967-11-29 Cover hold-down clamp for screening mahines

Country Status (3)

Country Link
US (1) US3433357A (en)
BE (1) BE702826A (en)
GB (1) GB1206630A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108580262A (en) * 2018-05-12 2018-09-28 汪德日 A kind of architectural engineering multilayer Sand screen
CN108686923A (en) * 2018-05-12 2018-10-23 汪德日 A kind of architectural engineering Sand screen

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3928189A (en) * 1974-05-31 1975-12-23 Rotex Wear resisting hold-down means for screening machine
FR2462204A1 (en) * 1979-07-25 1981-02-13 Marot Ste Nle Emile Rotary drum grain separator and cleaner - has suction outlet at feed end, sieving grids underneath and beater flaps along interior
US4251354A (en) * 1979-12-28 1981-02-17 Rotex, Inc. Screening machine
US4621739A (en) * 1983-12-12 1986-11-11 Heymann Mark S Tray for glass racks
US4527707A (en) * 1984-04-16 1985-07-09 Heymann Mark S Devices for securing a debris holding tray to a glass or dish rack
US4889056A (en) * 1985-03-27 1989-12-26 Trinity Industries, Inc. Cover and latching mechanism for rail car loading hatch
US5074012A (en) * 1991-05-17 1991-12-24 Rotex, Inc. Self-locking hold-down clamp
US5150796A (en) * 1991-07-18 1992-09-29 Rotex, Inc. Retractable, air pressure actuated hold-down clamp
US5186333A (en) * 1991-07-18 1993-02-16 Rotex, Inc. Top cover clamp for screening machine
US6073979A (en) * 1997-10-28 2000-06-13 Rotex, Inc. Adjustable clamp and force level indicator for screening machine cover
US6053329A (en) * 1998-04-14 2000-04-25 Rotex, Inc Vibratory frame mounting structure for screening machines
US20090238647A1 (en) * 2008-02-14 2009-09-24 Chevron U.S.A. Inc. Method for coupling seismometers and seismic sources to the ocean floor
WO2016106393A1 (en) 2014-12-23 2016-06-30 Derrick Corporation Systems, apparatuses, and methods for securing screen assemblies
CN106583241A (en) * 2016-12-22 2017-04-26 新乡市振英机械设备有限公司 Linear vibrating screen net rack pressing structure

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1827319A (en) * 1930-05-31 1931-10-13 Excelsior Hardware Co Hasp for trunk locks
FR722536A (en) * 1931-09-08 1932-03-17 New lock for car trunks and similar items
US2114406A (en) * 1936-05-12 1938-04-19 Lowe E Simpson Sieve frame
US2901279A (en) * 1955-03-02 1959-08-25 Bethlehem Steel Corp Dogging means
US3349581A (en) * 1965-07-23 1967-10-31 Richard E Quinn Rotatable drums and loading and unloading doors therefor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108580262A (en) * 2018-05-12 2018-09-28 汪德日 A kind of architectural engineering multilayer Sand screen
CN108686923A (en) * 2018-05-12 2018-10-23 汪德日 A kind of architectural engineering Sand screen
CN108686923B (en) * 2018-05-12 2019-12-03 汪德日 A kind of architectural engineering Sand screen

Also Published As

Publication number Publication date
US3433357A (en) 1969-03-18
BE702826A (en) 1968-01-15

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Legal Events

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