GB1389993A - Apparatus for the destruction of documents - Google Patents
Apparatus for the destruction of documentsInfo
- Publication number
- GB1389993A GB1389993A GB1953473A GB1953473A GB1389993A GB 1389993 A GB1389993 A GB 1389993A GB 1953473 A GB1953473 A GB 1953473A GB 1953473 A GB1953473 A GB 1953473A GB 1389993 A GB1389993 A GB 1389993A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cut
- cylinders
- discs
- strips
- document
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/0007—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating documents
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Pulverization Processes (AREA)
- Nonmetal Cutting Devices (AREA)
Abstract
1389993 Document shredders A GOLDHAMMER [trading as FEINWERKTECHNIK SCHLEICHER & CO] 25 April 1973 [29 Sept 1972] 19534/73 Heading B2A A document shredder comprises a pair of cutter cylinders comprising a plurality of interdigitated cutting discs. Each disc includes a plurality of cut-out grooves, the discs being arranged so that the grooves form helical lines on the cylinders. The angle of the tearing edge of a groove is preferably 75 to 90. In operation a paper sheet is first cut transversely with short cross cuts having the same width as longitudinal strips into which it is cut. The strips thus fall into small pieces.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19722247901 DE2247901C3 (en) | 1972-09-29 | Device for shredding sheets of paper |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1389993A true GB1389993A (en) | 1975-04-09 |
Family
ID=5857792
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1953473A Expired GB1389993A (en) | 1972-09-29 | 1973-04-25 | Apparatus for the destruction of documents |
Country Status (4)
Country | Link |
---|---|
US (1) | US3860180A (en) |
JP (2) | JPS4971576A (en) |
FR (1) | FR2201134B1 (en) |
GB (1) | GB1389993A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU211291U1 (en) * | 2021-10-08 | 2022-05-30 | Общество с ограниченной ответственностью "Газпром трансгаз Ухта" | DEVICE FOR DESTRUCTION OF OFFICE DOCUMENTATION ON OPTICAL AND PAPER MEDIA |
Families Citing this family (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4034918A (en) * | 1975-08-06 | 1977-07-12 | Saturn Manufacturing, Inc. | Drive arrangement for rotary shredding apparatus |
JPS5278875U (en) * | 1975-12-11 | 1977-06-13 | ||
JPS5288787U (en) * | 1975-12-26 | 1977-07-02 | ||
JPS53100187U (en) * | 1977-01-19 | 1978-08-14 | ||
US4200239A (en) * | 1978-07-14 | 1980-04-29 | Wright Line Inc. | Machine that quadrates documents |
JPS5551450A (en) * | 1978-10-11 | 1980-04-15 | Takeshi Hatanaka | Crusher |
US4411391A (en) * | 1980-05-27 | 1983-10-25 | Ofrex Group Limited | Document shredding machines |
DE3112639A1 (en) * | 1981-03-30 | 1982-10-07 | Feinwerktechnik Schleicher & Co, 7778 Markdorf | DEVICE FOR CRUSHING WASTE MATERIAL, e.g. BLOCKS OF PAPER |
US4452400A (en) * | 1981-11-23 | 1984-06-05 | Williams Patent Crusher And Pulverizer Company | Rotary shredding apparatus |
GB2126126B (en) * | 1982-08-27 | 1986-07-02 | Ofshred Limited | Shredding machine |
DE3313103A1 (en) * | 1983-04-12 | 1984-10-18 | Feinwerktechnik Schleicher & Co, 7778 Markdorf | CUTTING DEVICE FOR DEVICES FOR SHREDDING GRINDING MATERIAL FROM FLAT MATERIAL OR FLAT MATERIAL LAYERS, LIKE DOCUMENTS ETC. |
US4538766A (en) * | 1983-06-03 | 1985-09-03 | Constructie Werkhuizen Vandekerckhove N.V. | Process and apparatus for crushing raw materials |
US4693428A (en) * | 1984-11-01 | 1987-09-15 | Cummins Allison Corporation | Particle-type shredding mechanism |
DE3444709C2 (en) * | 1984-12-07 | 1996-05-30 | Gao Ges Automation Org | Device for destroying banknotes |
GB8432545D0 (en) * | 1984-12-21 | 1985-02-06 | Ofrex Group Plc | Shredding machines |
GB2193117B (en) * | 1986-07-29 | 1989-12-20 | Hermann Schwelling | Paper cutting cylinder for a shredding machine |
DE8705031U1 (en) * | 1987-04-04 | 1988-08-04 | Schwelling, Hermann, 7777 Salem | Cutting unit for document shredders |
US4944462A (en) * | 1989-05-02 | 1990-07-31 | Cummins-Allison Corp. | Shredder |
US5071080A (en) * | 1990-02-27 | 1991-12-10 | Fellowes Manufacturing Company | Document shredding machine |
US5163629A (en) * | 1991-05-01 | 1992-11-17 | Cummins-Allison Corp. | Shredder cutting discs |
US5275342A (en) * | 1991-08-30 | 1994-01-04 | Galanty William B | Solid waste crusher and sizing apparatus |
US5295633A (en) * | 1992-01-13 | 1994-03-22 | Fellowes Manufacturing Company | Document shredding machine with stripper and cutting mechanism therefore |
US5560552A (en) * | 1993-11-12 | 1996-10-01 | Environmental Products Corporation | Container cutting assembly |
US5533684A (en) * | 1994-10-17 | 1996-07-09 | Beloit Technologies, Inc. | Wood chip strand splitter |
US5676321A (en) * | 1995-04-03 | 1997-10-14 | Fellowes Mfg. Co. | Cutting disk |
US5636801A (en) * | 1995-08-02 | 1997-06-10 | Fellowes Mfg. Co. | One piece molded stripper for shredders |
US5829697A (en) * | 1995-08-24 | 1998-11-03 | Fellowes Manufacturing Company | Support for cylinders in a paper shredder |
US5655725A (en) * | 1995-08-24 | 1997-08-12 | Fellowes Manufacturing Co. | Retaining plate for gearing |
CA2536780C (en) * | 2003-08-29 | 2012-11-13 | Bki Holding Corporation | System for delivery of fibers into concrete |
US7040559B2 (en) | 2004-04-02 | 2006-05-09 | Fellowes Inc. | Shredder with lock for on/off switch |
CN2915259Y (en) | 2006-07-14 | 2007-06-27 | 上海震旦办公设备有限公司 | Paper shredder touch safety device |
US8008812B2 (en) | 2006-07-14 | 2011-08-30 | Aurora Office Equipment Co., Ltd. | Paper shredder control system responsive to touch-sensitive element |
US20080053994A1 (en) * | 2006-08-30 | 2008-03-06 | Aurora Office Equipment Co., Ltd. Shanghai | Paper-Breaker Wastebin Structure |
CN201239643Y (en) | 2008-08-06 | 2009-05-20 | 上海震旦办公设备有限公司 | Full automatic paper crusher without selecting paper |
CN201244502Y (en) | 2008-08-19 | 2009-05-27 | 上海震旦办公设备有限公司 | Structure capable of removing nail of automatic paper crusher |
CN101543799B (en) * | 2009-04-28 | 2012-10-10 | 上海震旦办公设备有限公司 | Novel protector for paper crusher |
CN101543800A (en) * | 2009-05-07 | 2009-09-30 | 上海震旦办公设备有限公司 | Paper jamming prevention protective device of paper shredder |
US8723468B2 (en) | 2011-04-28 | 2014-05-13 | Aurora Office Equipment Co., Ltd. | Cooled motor |
US8708260B2 (en) | 2011-08-08 | 2014-04-29 | Aurora Office Equipment Co., Ltd. | Depowered standby paper shredder and method |
CN106192503B (en) * | 2016-08-18 | 2018-03-30 | 安徽华普生产力促进中心有限公司 | A kind of books breaking means for making wood fibre |
CN106079002B (en) * | 2016-08-18 | 2018-05-15 | 安徽省双龙木质纤维素有限公司 | A kind of cotton cane breaking means for making wood fibre |
DE102018108300B4 (en) | 2017-08-09 | 2024-01-11 | Hermann Schwelling | Bearing arrangement and processing device equipped with it |
EP3441635B1 (en) * | 2017-08-09 | 2020-12-02 | Hermann Schwelling | Bearing arrangement and machining device equipped with said bearing arrangement |
CN107838180A (en) * | 2017-12-20 | 2018-03-27 | 中国大冢制药有限公司 | Soft bag product apparatus for destroying |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1090914A (en) * | 1912-03-06 | 1914-03-24 | Fritz Gueettler | Paper-comminuting machine. |
US3529782A (en) * | 1967-02-13 | 1970-09-22 | Arno J Liebman | Disintegrating machine |
DE1758913C3 (en) * | 1968-09-03 | 1975-04-10 | Bohmter Maschinenfabrik Gmbh & Co Kg, 4508 Bohmte | Device for shredding waste |
DE1808155A1 (en) * | 1968-11-09 | 1970-06-11 | Schleicher Co Feinwerktech | Ripping mechanism for a file or paper shredding device |
-
1973
- 1973-03-14 US US341294A patent/US3860180A/en not_active Expired - Lifetime
- 1973-04-25 GB GB1953473A patent/GB1389993A/en not_active Expired
- 1973-08-03 FR FR7329262A patent/FR2201134B1/fr not_active Expired
- 1973-09-10 JP JP48102549A patent/JPS4971576A/ja active Pending
-
1978
- 1978-02-22 JP JP1978022902U patent/JPS5415031Y2/ja not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU211291U1 (en) * | 2021-10-08 | 2022-05-30 | Общество с ограниченной ответственностью "Газпром трансгаз Ухта" | DEVICE FOR DESTRUCTION OF OFFICE DOCUMENTATION ON OPTICAL AND PAPER MEDIA |
Also Published As
Publication number | Publication date |
---|---|
DE2247901A1 (en) | 1974-04-11 |
DE2247901B2 (en) | 1976-08-12 |
FR2201134B1 (en) | 1977-07-29 |
JPS53135684U (en) | 1978-10-26 |
JPS5415031Y2 (en) | 1979-06-19 |
FR2201134A1 (en) | 1974-04-26 |
US3860180A (en) | 1975-01-14 |
JPS4971576A (en) | 1974-07-10 |
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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 |