US3545653A - Hoppers - Google Patents

Hoppers Download PDF

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Publication number
US3545653A
US3545653A US766594A US3545653DA US3545653A US 3545653 A US3545653 A US 3545653A US 766594 A US766594 A US 766594A US 3545653D A US3545653D A US 3545653DA US 3545653 A US3545653 A US 3545653A
Authority
US
United States
Prior art keywords
hopper
aperture
valve element
sidewall
hoppers
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 - Lifetime
Application number
US766594A
Other languages
English (en)
Inventor
Donald Eric Blackmore
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.)
Siemens Mobility Ltd
Original Assignee
Westinghouse Brake and Signal 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 Westinghouse Brake and Signal Co Ltd filed Critical Westinghouse Brake and Signal Co Ltd
Application granted granted Critical
Publication of US3545653A publication Critical patent/US3545653A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/54—Gates or closures
    • B65D90/58—Gates or closures having closure members sliding in the plane of the opening
    • B65D90/582—Gates or closures having closure members sliding in the plane of the opening having a rotational motion

Definitions

  • Alt0mey- Larson and Taylor ABSTRACT A hopper tapers in the direction of its height to an inverted apex at the bottom of the hopper. Adjacent the apex in a sidewall of the hopper is an aperture closable by a valve element mounted for rotation about a horizontal axis inito and out of its position in which it closes the aperture, the valve element having a surface facing internally of the hopper which surface is part cylindrical in shape and is centered about the horizontal axis, the axis lying outside the hopper.
  • the interior surface of said sidewall oi the hopper extends upwardly from the aperture substantially tangentially of the part cylindrical surface in smooth continuation of that part-cylindrical surface, whereby the valley or flow angle of material in the hopper is not increased as the valve element moves in the aperture closing direction.
  • the opposed sidewall provides a seat for the valve element in its fully closed position, and the interior surface of the further sidewall meets the part-cylindrical surface of the element when in its closed position, substantially tangentially.
  • PATENTEU DEC 8 I976 SHEET 2 OF 2 HOPPERS This invention relates to hoppers and, more particularly, to hoppers having means for discharging material from the hoppers.
  • the present invention provides a hopper tapering in the direction of its height to an inverted apex at the bottom of the hopper, adjacent which apex in a sidewall of the hopper there is an aperture closable by a valve element of which, in the position of the valve element in which it closes the aperture, the surface facing the interior of the hopper provides a smooth continuation of the wall of the hopper.
  • the hopper may have an upper body portion to which is attached a lower valve portion embodying said aperture and carrying said valve element.
  • the valve element may be mounted for rotation into and out of its position in which it closes the aperture and may be so movable about a horizontal axis.
  • FIG. 1 shows a vertical cross-sectional view through the lower part of the hopper
  • FIG. 2 shows a plan view of the lower valve portion
  • FIG. 3 shows a part cross-sectional view on the line A-A of FIG. 1.
  • the hopper comprises an upper body portion 1 to which is attached by means of bolts (not shown) passing through cooperating flanges 2 a lower valve portion 3.
  • the upper body portion is of conical shape having a valley angle as shown and the lower valve portion has at its upper end a circular orifice 4 (see FIG. 2) which alines with a similar aperture 5 at the lower end of the upper body portion 1 so that the internal walls 6 of the lower valve portion 3 constitute substantially a continuation of the internal wall 7 of the upper body portion although the internal wall of the valve portion 3 tapers to the inverted apex 8 of the hopper, which apex is substantially linear as can be seen in FIG. 2.
  • valve element 10 In the sidewall 6 of the lower valve portion 3 of the hopper is a rectangular aperture 9 closable by a valve element 10 which in its closed position seats on a valve seat 11 surrounding the aperture 9.
  • the valve element is of part-cylindrical form and the surface 12 thereof facing the interior of the hopper provides a continuation of the walls 5 and 6 of the hopper.
  • the valve element 10 is carried by an arcuate bracket 13 on a shaft 14 rotatable on ball bearings 15 about an axis 16, by a handle 17.
  • valve element 10 With the valve element 10 in the position shown in FIG. 1 in which it closes the aperture 9, any material in the hopper is retained therein but upon rotation of the handle 17, the valve element 10 will be rotated to open the aperture 9 and, thereby, allow material in the hopper to fall under gravity out of the aperture 9.
  • a hopper tapering in the direction of its height to an inverted apex at the bottom of the hopper, adjacent which apex in a sidewall of the hopper is an aperture closable by a valve element mounted for rotation about a horizontal axis downwardly into and upwardly out of its position in which it closes the aperture, the valve element having a surface facing internally of the hopper which surface is part cylindrical in shape and is centered about the horizontal axis, the horizontal axis lying outside the hopper, and the interior surface of said sidewall of the hopper extending upwardly from the aperture substantially tangentially of the part-cylindrical surface in smooth continuation of that parbcylindrical surface, whereby the valley angle of material in the hopper is not increased as the valve element moves in the aperture closing direction 2.
  • a hopper as claimed in claim 2 wherein the interior surface of said further sidewall meets the part-cylindrical surface of the element when in its position in which it closes the aperture, substantially tangentially but in a reverse manner to that in which the interior surface of the first-mentioned sidewall meets the part-cylindrical surface.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Pens And Brushes (AREA)
US766594A 1967-10-16 1968-10-10 Hoppers Expired - Lifetime US3545653A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB46989/67A GB1174967A (en) 1967-10-16 1967-10-16 Valves for Gravity-Feed Hoppers

Publications (1)

Publication Number Publication Date
US3545653A true US3545653A (en) 1970-12-08

Family

ID=10443318

Family Applications (1)

Application Number Title Priority Date Filing Date
US766594A Expired - Lifetime US3545653A (en) 1967-10-16 1968-10-10 Hoppers

Country Status (4)

Country Link
US (1) US3545653A (de)
DE (1) DE1802511A1 (de)
GB (1) GB1174967A (de)
NL (1) NL6814774A (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2237747A1 (en) * 1973-07-20 1975-02-14 Pont A Mousson Self loading mould for pre-expanded plastic beads - incorporating a swinging hopper gate to reduce weight and fill cycles
US3916949A (en) * 1973-10-01 1975-11-04 George W Armstrong Enclosed gate valve
US5009345A (en) * 1989-10-10 1991-04-23 J. I. Case Company Chute closure apparatus
US5791530A (en) * 1997-08-05 1998-08-11 Rabon; John Cover system for dual railcar spout outlets
US20030163007A1 (en) * 2002-02-08 2003-08-28 Dyckman Arkady Samuilovich Process and catalyst for purifying phenol
US6768031B2 (en) 2002-02-08 2004-07-27 General Electric Company Process and catalyst for producing p-cumylphenol
US20060129003A1 (en) * 2002-02-08 2006-06-15 General Electric Company Process and catalyst for purifying phenol

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPN815096A0 (en) * 1996-02-19 1996-03-14 Comalco Aluminium Limited Delivery system for flexible bulk containers of particulates and valve mechanism for use therein

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2237747A1 (en) * 1973-07-20 1975-02-14 Pont A Mousson Self loading mould for pre-expanded plastic beads - incorporating a swinging hopper gate to reduce weight and fill cycles
US3916949A (en) * 1973-10-01 1975-11-04 George W Armstrong Enclosed gate valve
US5009345A (en) * 1989-10-10 1991-04-23 J. I. Case Company Chute closure apparatus
US5791530A (en) * 1997-08-05 1998-08-11 Rabon; John Cover system for dual railcar spout outlets
US20030163007A1 (en) * 2002-02-08 2003-08-28 Dyckman Arkady Samuilovich Process and catalyst for purifying phenol
US6768031B2 (en) 2002-02-08 2004-07-27 General Electric Company Process and catalyst for producing p-cumylphenol
US20060129003A1 (en) * 2002-02-08 2006-06-15 General Electric Company Process and catalyst for purifying phenol
US7102036B2 (en) 2002-02-08 2006-09-05 General Electric Company Process and catalyst for purifying phenol

Also Published As

Publication number Publication date
DE1802511A1 (de) 1969-10-16
GB1174967A (en) 1969-12-17
NL6814774A (de) 1969-04-18

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