US3415424A - Means for dispensing predetermined quantities of powdered or granulated materials - Google Patents

Means for dispensing predetermined quantities of powdered or granulated materials Download PDF

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Publication number
US3415424A
US3415424A US608432A US60843267A US3415424A US 3415424 A US3415424 A US 3415424A US 608432 A US608432 A US 608432A US 60843267 A US60843267 A US 60843267A US 3415424 A US3415424 A US 3415424A
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United States
Prior art keywords
opening
tube
powdered
feed screw
dispensing
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
US608432A
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English (en)
Inventor
Ernest E Crossley
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.)
Ditchburn Vending Machines Ltd
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Ditchburn Vending Machines Ltd
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Publication date
Application filed by Ditchburn Vending Machines Ltd filed Critical Ditchburn Vending Machines Ltd
Application granted granted Critical
Publication of US3415424A publication Critical patent/US3415424A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G65/00—Loading or unloading
    • B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
    • B65G65/34—Emptying devices
    • B65G65/40—Devices for emptying otherwise than from the top
    • B65G65/46—Devices for emptying otherwise than from the top using screw conveyors
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/40—Beverage-making apparatus with dispensing means for adding a measured quantity of ingredients, e.g. coffee, water, sugar, cocoa, milk, tea
    • A47J31/404—Powder dosing devices
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J47/00—Kitchen containers, stands or the like, not provided for in other groups of this subclass; Cutting-boards, e.g. for bread
    • A47J47/01—Kitchen containers, stands or the like, not provided for in other groups of this subclass; Cutting-boards, e.g. for bread with dispensing devices

Definitions

  • Dispensing means for granulated or powdered material for example for dispensing dry ingredients such as coffee, tea and sugar in a beverage vending machine, comprising a tube having an open end into which a feed screw extends for feeding the material to a delivery opening in an end wall at the other end of the tube, shutter means being provided by varying the effective size of the delivery opening, and a by-pass opening being disposed in the side wall of the tube, for diverting material from the inner side of the delivery opening, means being provided for varying the effective size of the by-pass opening, the latter means and the shutter being interconnected so that when one opening is enlarged the other opening will be reduced, and vice versa.
  • the said tube may be disposed within an outer tube which also has an outlet opening in its end wall and a bypass opening in its side wall, the two tubes being rotatable relatively to one another to bring the two outlet openings and the two by-pass openings into and out of register with one another respectively.
  • dry ingredients such as coffee, tea and sugar are contained in cannisters and predetermined quantities of these ingredients are dispensed as required for mixing with liquid, e.g. water and/or milk.
  • the usual means for this purpose comprises a feed screw in the bottom of the cannister, adapted to force material through a delivery opening, driving means for the feed screw being adapted to rotate the feed screw through a predetermined number of revolutions.
  • the quantity of material dispensed by such apparatus can be varied either by varying the number of revolutions of the feed screw on each dispensing operation, or by changing the feed screw for one of larger size or of different pitch. In any of these methods, a mechanical change is required, e.g. a change in the driving mechanism or substitution of a different feed screw.
  • the present invention is designed to provide a dispensing mechanism, for powdered or granulated material, which is capable of being readily adjusted to vary the quantity of material dispensed on each dispensing operation. Whilst the invention is primarily designed for use in beverage vending machines, it can equally well be adapted for dispensing pre-determined quantities of powdered or granulated materials for other purposes.
  • a feed screw is adapted to feed powdered or granulated material to a delivery opening, means, such as a shutter, being provided for varying the effective size of the delivery opening, and a bypass opening also having means for varying its effective size is adapted to divert material from the inner side of the delivery opening, the means for varying the effective size of the said two openings being coupled whereby when one opening is enlarged the other opening will be reduced and vice versa.
  • FIGURE 1 is a perspective view of a dry ingredients cannister, incorporating the dispensing means
  • FIGURE 2 is a front view of the lower portion of the cannister illustrating the variable delivery opening
  • FIGURE 3 is a section on the line IIIIII of FIG- URE 2
  • FIGURE 4 is a section on the line IV-1V of FIG- URE 3,
  • FIGURE 5 is a plan view of the dispensing means and illustrates a variable bypass opening
  • FIGURE 6 is a perspective view of an inner sleeve for the delivery screw
  • FIGURE 7 is a view similar to FIGURE 6 but showing an outer sleeve
  • FIGURE 8 is a section on the line VIllI--VIII of FIG- URE 2 but illustrating a modified form of delivery screw.
  • the particular arrangement illustrated is intended for the dispensing of powdered or granulated ingredients in a beverage vending machine.
  • the powdered or granulated] material is contained in a cannister 10 and a feed screw 11 is disposed in the bottom of the cannister, a drive shaft 12 projecting from the rear end of the feed screw through an opening in the rear wall of the cannister 10, the shaft 12 being connected through reduction gearing 13 to an electric motor 14 for driving the feed screw 11.
  • the forward end portion of the feed screw 11 is enclosed in a tube 15 the front end of which has an end wall 16 with a delivery opening 17 therein.
  • This tube which will be called the inner tube 15 is fitted within an outer tube 18 and is rotatable about the common axis of the two tubes relatively to the outer tube 18 which latter also has a front end wall 19 with a delivery opening 20.
  • the outer tube 18 is rotatable about its axis in an opening 21 in the front wall 22 of the cannister 10, the front end wall 19 of the outer tube 18 being aligned with or projecting slightly in front of the front wall 22 of the cannister, and the front end wall 16 of the inner tube 15 hearing against the inner surface of the front end wall 19 of the outer tube 18.
  • each tube comprises substantially a semicircle, so that by rotating one tube relatively to the other tube, the effective delivery opening can be varied between half the area of the front end wall and a fully closed position, that is, from a position in which the semi-circular end walls 16 and 19 are in register with one another to a position where they are fully out of register so that the end wall of each tube obscures the opening in the end wall of the other tube.
  • a radially disposed lever 23 projects from the front end of the inner tube 15 through the opening 20 in the front end wall 19 of the outer tube 18, to serve for manually rotating the inner tube 15, and this lever 23 will prevent the delivery opening being fully closed.
  • a similar radial lever 24 projects from the front end of the outer tube 18, for manually rotating the outer tube.
  • the tube 15 has an axially disposed slot 25 and the tube 18 has a similar slot 26, the two slots being arranged so that they can be brought into and out of register with one another by rotating one tube relatively to the other tube. In this way, the effective size of the opening provided by the two slots 25 and 26 can be varied, this opening being the bypass opening.
  • the slots 25 and 26 are so disposed around the two tubes with relation to the positions of the openings 17 and 20 in the end walls of the tubes, that as the delivery opening formed by the openings 17 and 20 is being reduced, the by-pass opening provided by the slots 25 and 26 will be enlarged, and. vice versa.
  • the by-pass opening of the slots 25 and 26 may be arranged to close fully when the delivery opening 17, 20 is at its maximum size.
  • material will be fed through the delivery opening, the rate of delivery depending on the effective size of the delivery opening, and when the delivery opening is partly closed, the by-pass opening will be opened to a corresponding degree to permit excess material to flow therethrough and back into the cannister.
  • the feed screw 11 extends from the rear wall of the cannister and through the inner tube 15, and has a pin 27 projecting from its forward end into engagement with notches 28 in the end walls 16 and 19 of the tubes and 18.
  • the thread 29 of the screw 11 serves to feed material from the cannister into the inner tube 15 and extends into the rear end portion of the inner tube.
  • the thread at the forward end of the screw 11 has its outside diameter reduced as shown at 30 in FIGURE 3, thus leaving a clearance between the forward thread portion 30 and the inner tube.
  • FIGURE 8 An alternative arrangement for the feed screw 11 is shown in FIGURE 8, the thread 29 extending into the rear end portion of the inner tube 15 as in the arrangement shown in FIGURE 3, but instead of reducing the forward thread portion stepwise, the outside diameter of the forward portion of the thread is reduced progressively so as to be substantially conical as indicated at 31.
  • Means for dispensing granulated, powdered or other particulate material comprising a tube having an open end and having an opposite end provided with an opening for delivery of material, adjustable shutter means for varying the effective size of said delivery opening, means providing a by-pass opening in the side of said tube, adjustable means for varying the effective size of said side wall by-pass opening, a feed screw extending into said open end of the tube for feeding material toward said openings, said by-pass opening being adapted to divert material from the tube at the inner side of said delivery opening, and means for operatively coupling and associating said adjustable means whereby when one of said openings is enlarged the other is reduced, and vice versa.
  • Dispensing means in which the feed screw is disposed substantially horizontally in the bottom of a container for the material to be dispensed,
  • a drive shaft projects from the rear end of the feed screw through the rear wall of the container and is operatively connected to a driving motor, and the delivery opening is disposed in the front wall of the said container.
  • Dispensing means according to claim 2, wherein the forward end of said feed screw extends relatively rotatably into engagement with a recess in the end of said tube at said delivery opening.
  • Dispensing means according to claim 1, wherein said tube is disposed with an outer tube having a delivery Opening in an end wall adjacent the delivery opening in the inner tube, and said tubes are relatively rotatable about a common axis to vary the registry of their delivery and by-pass openings.
  • each delivery opening comprises approximately one half of the end wall of the corresponding tube and each bypass opening comprises an axially disposed slot in the corresponding tube.
  • Dispensing means in which a lever on the inner tube extends through the delivery opening of the outer tube for rotating the inner tube relatively to the outer tube.
  • Dispensing means according to claim 4, wherein the delivery opening end of said outer tube is rotatably mounted in the front wall of said container.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Beverage Vending Machines With Cups, And Gas Or Electricity Vending Machines (AREA)
  • Screw Conveyors (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
US608432A 1966-01-11 1967-01-10 Means for dispensing predetermined quantities of powdered or granulated materials Expired - Lifetime US3415424A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1142/66A GB1139971A (en) 1966-01-11 1966-01-11 Means for dispensing pre-determined quantities of powdered or granulated materials

Publications (1)

Publication Number Publication Date
US3415424A true US3415424A (en) 1968-12-10

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ID=9716919

Family Applications (1)

Application Number Title Priority Date Filing Date
US608432A Expired - Lifetime US3415424A (en) 1966-01-11 1967-01-10 Means for dispensing predetermined quantities of powdered or granulated materials

Country Status (9)

Country Link
US (1) US3415424A (da)
BE (1) BE692427A (da)
CH (1) CH453733A (da)
DK (1) DK115670B (da)
FR (1) FR1508548A (da)
GB (1) GB1139971A (da)
LU (1) LU52789A1 (da)
NL (1) NL6700394A (da)
NO (1) NO118937B (da)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4067478A (en) * 1976-06-11 1978-01-10 Milek Robert C Cement batcher
US4297793A (en) * 1980-02-13 1981-11-03 Snow Brand Milk Products Co., Ltd. Apparatus for supplying materials to belt type continuous vacuum dryer
WO1991016145A1 (en) * 1990-04-18 1991-10-31 Recot, Inc. Apparatus and method for distributing for seasonings
US5287801A (en) * 1991-07-31 1994-02-22 Clark Gordon A Flavoring food products
US5386939A (en) * 1991-05-30 1995-02-07 Recot, Inc. Apparatus and method for distribution of seasonings and the like for the uniform distribution of seasonings or like granular/powdered materials
CN108185854A (zh) * 2017-12-26 2018-06-22 重庆凡匠科技有限公司 一种食材仓结构

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4884943A (en) * 1987-06-25 1989-12-05 A. Ahlstrom Corporation Method and apparatus for pumping high-consistency fiber suspension

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2434771A (en) * 1946-03-02 1948-01-20 Lincoin Engineering Company Liquid dispenser
US2885191A (en) * 1956-12-03 1959-05-05 Elmer K Hansen Mixing and unloading device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2434771A (en) * 1946-03-02 1948-01-20 Lincoin Engineering Company Liquid dispenser
US2885191A (en) * 1956-12-03 1959-05-05 Elmer K Hansen Mixing and unloading device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4067478A (en) * 1976-06-11 1978-01-10 Milek Robert C Cement batcher
US4297793A (en) * 1980-02-13 1981-11-03 Snow Brand Milk Products Co., Ltd. Apparatus for supplying materials to belt type continuous vacuum dryer
WO1991016145A1 (en) * 1990-04-18 1991-10-31 Recot, Inc. Apparatus and method for distributing for seasonings
US5090593A (en) * 1990-04-18 1992-02-25 Recot, Inc. Apparatus and method for distributing seasoning
US5386939A (en) * 1991-05-30 1995-02-07 Recot, Inc. Apparatus and method for distribution of seasonings and the like for the uniform distribution of seasonings or like granular/powdered materials
US5287801A (en) * 1991-07-31 1994-02-22 Clark Gordon A Flavoring food products
CN108185854A (zh) * 2017-12-26 2018-06-22 重庆凡匠科技有限公司 一种食材仓结构

Also Published As

Publication number Publication date
CH453733A (fr) 1968-03-31
NO118937B (da) 1970-03-02
LU52789A1 (da) 1967-03-13
NL6700394A (da) 1967-07-12
GB1139971A (en) 1969-01-15
BE692427A (da) 1967-06-16
FR1508548A (fr) 1968-01-05
DK115670B (da) 1969-10-27

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