US2522040A - Mixer for the making of light concrete - Google Patents

Mixer for the making of light concrete Download PDF

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Publication number
US2522040A
US2522040A US766977A US76697747A US2522040A US 2522040 A US2522040 A US 2522040A US 766977 A US766977 A US 766977A US 76697747 A US76697747 A US 76697747A US 2522040 A US2522040 A US 2522040A
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Prior art keywords
shaft
mixer
blades
drum
light concrete
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Expired - Lifetime
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US766977A
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Janhunen Matti
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/38—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions wherein the mixing is effected both by the action of a fluid and by directly-acting driven mechanical means, e.g. stirring means ; Producing cellular concrete
    • B28C5/381—Producing cellular concrete
    • B28C5/383—Producing cellular concrete comprising stirrers to effect the mixing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/118—Stirrers in the form of brushes, sieves, grids, chains or springs

Definitions

  • My invention relates to a mixer for use in making light concrete, the mixer having a drum provided with filling and discharge openings, a shaft extending within the drum, and mixing blades on the shaft.
  • the mixing blades extend substantially radially from the shaft and substantially from one end of the drum to the other in the direction of the shaft, and comprise wire netting, perforated plate or other perforated material.
  • Fig. 1 is a longitudinal section and Fi 2 is a transverse section.
  • I is the drum with a filling Opening 2 and a discharge opening 3
  • 4 is the shaft passing through the ends of the drum, the mixing blades 5 being fitted on the shaft by means of cruciform carriers 5 secured one at each end of the shaft.
  • the four blades 5 extend radially from the shaft and are arranged at rightangles to each other, the blades consist of a single sheet of wire netting or network appropriately bent and extending continuously between the blades. The portion of the wire netting between each pair of adjacent blades is bent inwards to form a channel I which extends close to and parallel with the shaft 4.
  • the outer edges of the blades 5 consist of metal strips 8 of U- shaped cross-section.
  • the arrangement is such that on rotation of the shaft 4 the blades 5 rotate and raise from the bottom of the drum the mass to be mixed and thus effect a thorough mixing of the ingredicuts of the concrete.
  • the perforated blades 5 thus render the mixture porous.
  • air is conducted through the mass in a manner known per se.
  • a concrete mixer for making light concrete including the combination of a hollow drum having an inlet port and an outlet port; a shaft rotatably supported transversely in the drum; a plurality of supporting members rigidly projecting radially from the shaft in spaced apart relation; and a wire network extending inwardly toward said shaft between each two adjacent supporting members from the outer ends of said supporting members and being attached to said outer ends.
  • a concrete mixer for making light concrete including the combination of a hollow drum having an inlet port and an outlet port; a shaft rotatably supported transversely in the drum; a
  • a concrete mixer for making light concrete including the combination of a hollow drum having an inlet port and an outlet port; a shaft rotatably supported transversely in the drum; a single piece of network surrounding all of the supporting members and extending inwardly toward said. shaft between each twoadjacent supporting members from the outer ends of said supporting members and being secured to said outer ends.
  • a concrete mixer for making light concrete including the combination of a hollow drum having an inlet port and an outlet port; a shaft rotatably supported transversely in the drum; a plurality of wide supporting blades rigidly projecting radially from the shaft in angularly spaced apart relation; and a plurality of pieces of network individually extending inwardly toward said shaft between each two adjacent sup porting blades from the outer ends of said supporting members and having the ends of each piece of network secured to the outer ends of the pair of supporting blades between which it is located.
  • a concrete mixer for making light concrete including the combination of a hollow drum having an inlet port and an outlet port; a shaft rotatably supported transversely in the drum; a plurality of wide supporting blades rigidly projecting radially from the shaft in angularly spaced apart relation; and a single piece of network surrounding all of the supporting blades and extending inwardly toward said shaft between each two adjacent supporting blades from the outer ends of said supporting members and being secured to said outer ends.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)

Description

Sept. 12, 1950 M. JANHUNEN MIXER FOR THE MAKING OF LIGHT CONCRETE Filed Aug. 7, 1947 Patented Sept. 12, 1950 MIXER FOR THE MAKING OF LIGHT CONCRETE Matti J anhunen, Helsinki, Finland Application August '7, 1947, Serial No. 766,977 In Finland August 24, 1943 Section 1, Public Law 691), August 8, 1946 Patent expires August 24, 1963 Claims. 1
My invention relates to a mixer for use in making light concrete, the mixer having a drum provided with filling and discharge openings, a shaft extending within the drum, and mixing blades on the shaft.
According to my invention in a mixer as aforesaid the mixing blades extend substantially radially from the shaft and substantially from one end of the drum to the other in the direction of the shaft, and comprise wire netting, perforated plate or other perforated material.
In order that my invention may be clearly understood the following more specific embodiment will now be described but merely by way of example with reference to the accompanying drawing in which Fig. 1 is a longitudinal section and Fi 2 is a transverse section.
In the drawing, I is the drum with a filling Opening 2 and a discharge opening 3, and 4 is the shaft passing through the ends of the drum, the mixing blades 5 being fitted on the shaft by means of cruciform carriers 5 secured one at each end of the shaft. The four blades 5 extend radially from the shaft and are arranged at rightangles to each other, the blades consist of a single sheet of wire netting or network appropriately bent and extending continuously between the blades. The portion of the wire netting between each pair of adjacent blades is bent inwards to form a channel I which extends close to and parallel with the shaft 4. The outer edges of the blades 5 consist of metal strips 8 of U- shaped cross-section.
The arrangement is such that on rotation of the shaft 4 the blades 5 rotate and raise from the bottom of the drum the mass to be mixed and thus effect a thorough mixing of the ingredicuts of the concrete. The perforated blades 5 thus render the mixture porous. When increased porosity is desired air is conducted through the mass in a manner known per se.
I claim:
1. A concrete mixer for making light concrete, including the combination of a hollow drum having an inlet port and an outlet port; a shaft rotatably supported transversely in the drum; a plurality of supporting members rigidly projecting radially from the shaft in spaced apart relation; and a wire network extending inwardly toward said shaft between each two adjacent supporting members from the outer ends of said supporting members and being attached to said outer ends.
2. A concrete mixer for making light concrete, including the combination of a hollow drum having an inlet port and an outlet port; a shaft rotatably supported transversely in the drum; a
plurality of supporting members rigidly projecting radially from the shaft in spaced apart relation; and a plurality of pieces of network individually extending inwardly towards said shaft between each two adjacent supporting members from the outer ends of said supporting members and having the ends of said pieces of network secured to said outer ends.
3. A concrete mixer for making light concrete, including the combination of a hollow drum having an inlet port and an outlet port; a shaft rotatably supported transversely in the drum; a single piece of network surrounding all of the supporting members and extending inwardly toward said. shaft between each twoadjacent supporting members from the outer ends of said supporting members and being secured to said outer ends.
4. A concrete mixer for making light concrete, including the combination of a hollow drum having an inlet port and an outlet port; a shaft rotatably supported transversely in the drum; a plurality of wide supporting blades rigidly projecting radially from the shaft in angularly spaced apart relation; and a plurality of pieces of network individually extending inwardly toward said shaft between each two adjacent sup porting blades from the outer ends of said supporting members and having the ends of each piece of network secured to the outer ends of the pair of supporting blades between which it is located.
5. A concrete mixer for making light concrete, including the combination of a hollow drum having an inlet port and an outlet port; a shaft rotatably supported transversely in the drum; a plurality of wide supporting blades rigidly projecting radially from the shaft in angularly spaced apart relation; and a single piece of network surrounding all of the supporting blades and extending inwardly toward said shaft between each two adjacent supporting blades from the outer ends of said supporting members and being secured to said outer ends.
MATTI J AN HUNEN'.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 129,359 Moore July 16, 1872 33%,798 Moran Jan. 26, 1886 583,751 James June 1, 1897 592,708 Howe Oct. 28, 1897
US766977A 1943-08-24 1947-08-07 Mixer for the making of light concrete Expired - Lifetime US2522040A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI2522040X 1943-08-24

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US2522040A true US2522040A (en) 1950-09-12

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US766977A Expired - Lifetime US2522040A (en) 1943-08-24 1947-08-07 Mixer for the making of light concrete

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SE (1) SE121612C1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE444911B (en) * 1983-06-20 1986-05-20 Cellexfabrikerna Ab DEVICE FOR PREPARING CONCRETE

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US129359A (en) * 1872-07-16 Improvement in coffee-cleaning sviachines
US334798A (en) * 1886-01-26 Apparatus for dyeing
US583751A (en) * 1897-06-01 John william henry james
US592708A (en) * 1897-10-26 Egg or cake beater

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US129359A (en) * 1872-07-16 Improvement in coffee-cleaning sviachines
US334798A (en) * 1886-01-26 Apparatus for dyeing
US583751A (en) * 1897-06-01 John william henry james
US592708A (en) * 1897-10-26 Egg or cake beater

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Publication number Publication date
SE121612C1 (en) 1948-05-04

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