# US 4,391,413 A · Apparatus for breaking articles

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- Number: US 4,391,413 A
- Document ID: US4391413A
- Status: Granted
- Kind: A
- Application number: 06/197,237
- Filed: 1980-10-15
- Granted: 1983-07-05
- Earliest claimed: 1979-10-16
- Assignees: B.H.F. (Engineering) Limited
- Inventors: Ernest A. Pack
- Web page: https://patentgrep.com/patent/US4391413A

## CPC

- B02C 13/28: Shape or construction of beater elements
- B02C 13/18: with beaters rigidly connected to the rotor
- B02C 19/0087: {for glass bottles}
- Y02W 30/60: Glass recycling
- B02C: CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN ({household tools and machines for pulverising foodstuffs, e.g. coffee and spice mills A47J42/00; pharmaceutical mortars A61J3/02; mechanical processing of refuse and garbage B03B9/06; dressing mould materials by grinding B22C5/04}; obtaining metallic powder by crushing, grinding or milling B22F9/04; {recovery of plastics by disintegrating B29B17/00; crushing raw materials in starch making C08B30/02; beaters for papermaking D21D1/02; crushing devices specially for transport in mines E21F13/002; slag crushing devices F23J1/00; fuel milling devices in combustion apparatus F23K1/00; household devices for crushing coal F24B15/02; ice disintegrating devices F25C5/02})
- Y02W: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT

## Abstract

An article breaking device, particularly a glassware breaking device for making cullet, is described. The articles to be broken pass down a chute into a downwardly open chamber. Within the chamber is a rotating member which is not circular in horizontal cross-section and which is rotated at high speed around a vertical axis. The articles to be broken impact on the member, are broken and the broken pieces fall out of the open base of the chamber. The rotating member is preferably frustoconical with a plurality of vertically running external ribs and a plurality of horizontally extending blades.

## Claims

### Claim 1

Apparatus for fracturing glassware into cullet comprising: an upwardly and inwardly tapering impact member of noncircular horizontal cross-section mounted for rotation in a given direction about a vertical axis, said impact member including generally vertically extending ribs which have side surfaces facing generally in said given direction; a housing having a side wall with a generally smooth inner surface, said side wall surrounding and horizontally spaced from said impact member and extending downwardly beyond the lower edge of said impact member whereby a generally annular space is formed between said side wall and the lower edge of said impact member; means for rotating said impact member about said vertical axis in said given direction; and glassware feed means including a guide chute having a guide surface inclined downwardly and inwardly toward the side of said impact member for directing glassware issuing from the chute onto the side of said impact member, the arrangement of impact member, housing side wall and chute being such that the glassware is fractured into cullet upon contact with said impact member and falls downwardly away from said impact member and through said generally annular space.

### Claim 2 (depends on 1)

Apparatus as in claim 1 wherein said housing is open in a downward direction and wherein said feed means is mounted on said housing.

### Claim 3 (depends on 1)

Apparatus as in claim 1 wherein said means for rotating said impact member is located vertically above said impact member.

### Claim 4 (depends on 1)

Apparatus as in claim 1 wherein said impact member is generally frustoconical in shape.

### Claim 5 (depends on 4)

Apparatus as in claim 4 wherein said impact member has at least one blade extending generally horizontally from its base, the blade being set at an angle such that on rotation it produces a downward draught.