US2036207A - Destroyer for tickets - Google Patents
Destroyer for tickets Download PDFInfo
- Publication number
- US2036207A US2036207A US67985833A US2036207A US 2036207 A US2036207 A US 2036207A US 67985833 A US67985833 A US 67985833A US 2036207 A US2036207 A US 2036207A
- Authority
- US
- United States
- Prior art keywords
- blades
- knives
- edges
- paper
- tickets
- 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
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/06—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods
- D21B1/08—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods the raw material being waste paper; the raw material being rags
- D21B1/10—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by dry methods the raw material being waste paper; the raw material being rags by cutting actions
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S83/00—Cutting
- Y10S83/929—Particular nature of work or product
- Y10S83/933—Book, being destroyed, e.g. cover being cut away
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S83/00—Cutting
- Y10S83/929—Particular nature of work or product
- Y10S83/952—Moving work
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/768—Rotatable disc tool pair or tool and carrier
- Y10T83/7809—Tool pair comprises rotatable tools
- Y10T83/783—Tool pair comprises contacting overlapped discs
Definitions
- This invention relates to a destroyer for tickets, or the like, particularly designed for the destruction of theatre, railroad or other tickets, or the destruction of papers such as telegram tapes or the like. It is also adapted to be used for the destruction of paper money.
- Fig. l is a vertical sectional view showing an embodiment of the invention.
- Fig. 2 is a fragmentary sectional view showing the preferred knife construction
- Fig. 3 is a fragmentary sectional view showing further details of knife construction
- Fig. 4 is an elevation of a tool used to sharpen the knives, the mode of operation being indicated in the figure;
- Fig. 5 is a vertical section showing the relationships of parts of the mechanism
- Fig. 6 is a fragmentary view showing a safety control
- Fig. '7 is a plan view illustrating the driving devices for the knives.
- Fig. 8 is a fragmentary elevation of a stripping element designed to cooperate with a knife.
- the machine in the preferred form shown in the drawings comprises a casing 2 to which is removably secured a table 4 braced by a strut 6 which is removably held in position by a bracket 8 and also additionally supported by a hook member It removably engaging the casing.
- a hopper I2 supported by the table 4 is designed to receive 5 ticket or other paper stock to be destroyed from the table, there being provided in the bottom of the hopper a conveyor belt indicated at M which may be hand driven through a crank I6.
- An adjustable gate [8 serves to limit the delivery of the 10 stock maintaining it at a reasonably minimum amount to prevent excessive feed and jamming of the power driven parts of the apparatus.
- An apron guides the stock into a hopper 22.
- the hopper 22 has its lower open end located above 15 a pair of knives 24 and 26. These knives are driven in opposite directions by intermeshing gears, one of them having secured thereto a gear 28 driven by a pinion 3!] which is carried by a shaft 3! to which is secured a sprocket wheel 32 driven by a suitable chain upon a motor 34.
- the knife 24 comprises a hub formed integral with blades 36.
- the knife 26 similarly is provided with blades 38 which are interleaved with the blades 36 as indicated in Figs. 2 .and 3.
- the blades are provided with V-shaped circumferential grooves as indicated at 40 thus providing sharp cutting edges which engage as the blades rotate.
- the blades are notched as indicated at 42 whereby they are better adapted to grip and feed the paper for cutting between the knives.
- V-shaped grooves in the peripheries of the blades it is made possible to maintain the successive blades in close contact and in sharp condition so as to be effective for cutting.
- This is readily accomplished by the use of a swaging tool indicated at 441 which is forcibly pressed into the groove of a blade and causes the edges to be forced outwardly thus providing a suitable take-up for wear.
- the angle of the tool 44 is greater than that of the grooves so that this action may be obtained as shown in Fig. 4.
- the blades may be made, for example, of high carbon tool steel which, while it is hard enough to provide effective cutting edges capable of withstand- 45 ing great wear, nevertheless it may be swaged as indicated.
- strippers indicated at 46 which present teeth projecting into the grooves between the blades closely clearing both the blades and hubs.
- a chute 48 receives the shredded material and leads it to a position for discharge.
- the shaft 3! is provided with a squared end arranged to receive a crank which may be turned by hand to rotate the blades either forwardly or backwardly to provide clearing therefrom of jammed material.
- An opening 59 in the wall of the casing is aligned with the end 38 of the shaft. Swinging so as to cover or uncover this opening is a guard plate 52 formed on the lower end of a lever 54 which is pivoted at 56 and engageable by a slide 58 which may be moved by an operator.
- the lever 54 is provided with a fork indicated at 60 which embraces the operating handle 62 of a switch 66.
- the switch M is preferably of a type indicated, for example, in Patent 1,726,233, dated August 27, 1929.
- a switch of this character is arranged to open the circuit of a motor such as 34 when the current has excessive values such as occur upon stalling.
- stalling occurs the circuit of the rotor 34 is opened by the switch and cannot be closed until the switch handle 62 is again moved to an elf position and later brought back to an on position. This is effected directly in the present instance by manipulation of the button or slide 58.
- the switch is closed and the motor running the plate 52 closes the opening 50 so that an operator will not accidentally introduce the crank.
- the crank engages the end 33 of the shaft I the motor cannot accidentally be started.
- the knives may be rotated either forwardly or backwardly as to most effectively provide cleaning.
- the ticket or other paper material may be fed into the hopper l2 by hand from the table i.
- the crank it can be turned by hand to then feed the material within the hopper.
- the gate i3 is preferably so adjusted that with ordinary hand speed of operation the hopper will never receive too much to be properly taken care of by the knives.
- driving the conveyor M by hand it may, of course, be driven by the motor 34 through suitable reduction gearing to give it a proper speed of operation.
- a machine for destroying paper, or the like including a pair of knives each comprising a hub integrally carrying a plurality of blades, the blades of one knife extending between the blades of the other to provide cutting engagements, the peripheries of the blades being provided with circumferential grooves meeting the sides of the blades to form sharp cutting edges.
- a machine for destroying paper, or the like including a pair of knives each comprising a hub integrally carrying a plurality of blades, the
- blades of one knife extending between the blades of the other to provide cutting engagements, the peripheries of the blades being provided with circumferential grooves meeting the sides of the blades to form sharp cutting edges, the material being swaged outwardly at said edges to insure proper cutting.
- a machine for destroying paper, or the like including a pair of knives each comprising a hub integrally carrying a plurality of blades, the blades of one knife extending between the blades of the other to provide cutting engagements, the peripheries of the blades being provided with circumferential grooves meeting the sides of the blades to form sharp cutting edges, the edges of the blades being notched to assist in feeding the paper.
- a machine for destroying paper, or the like including a pair of knives each comprising a hub integrally carrying a plurality of blades, the blades of one knife extending between the blades of the other to provide cutting engagements, the peripheries of the blades being provided with circumferential grooves meeting the sides of the blades to form sharp cutting edges, the material being swaged outwardly at said edges to insure proper cutting, the edges of the blades being notched to assist in feeding the paper.
- a machine for destroying paper, or the like including a pair of knives each including a plurality of blades, the blades of one knife extending between the blades of the other to provide cutting engagements, the peripheries of the blades being provided with circumferential grooves meeting the sides of the blades to form sharp cutting edges.
- a machine for destroying paper, or the like including a pair of knives each including a plurality of blades, the blades of one knife extending between the blades of the other to provide cutting engagements, the peripheries of the blades being provided with circumferential grooves meeting the sides of the blades to form sharp cutting edges, the material being swaged outwardly at said edges to insure proper cutting.
- a machine for destroying paper, or the like including a pair of knives each including a plurality of blades, the blades of one knife extending between the blades of the other to provide cutting engagements, the peripheries of the blades being provided with circumferential grooves meeting the sides of the blades to form sharp cutting edges, the edges of the blades being notched to assist in feeding the paper.
- a machine for destroying paper, or the like including a pair of knives each including a plurality of blades, the blades of one knife extending between the blades of the other to provide cutting engagements, the peripheries of the blades being provided with circumferential grooves meeting the sides of the blades to form sharp cutting edges, the material being swaged outwardly at said edges to insure proper cutting, the edges of the blades being notched to assist in feeding the paper.
Description
c. o. FEIDDERN ET AL DESTROYER FOR TICKETS Filed July 11, 1935 2 Sheets-Sheet l W/mmss:
2 Sheets-Sheet 2 z :m &
a. Lava L,
9 M c. o. FEDDERN ET AL DESTROYER FOR TICKETS Filed July 11, 1933 Patented Apr. 7, 1936 UNITED STATES PATENT OFFIQE DESTROYER FOR TICKETS tion of Pennsylvania Application July 11, 1933, Serial No. 679,858
8 Claims.
This invention relates to a destroyer for tickets, or the like, particularly designed for the destruction of theatre, railroad or other tickets, or the destruction of papers such as telegram tapes or the like. It is also adapted to be used for the destruction of paper money.
In the destruction of tickets, or the like, there have been provided machines in which tickets are fed from a hopper between cutting knives adapted to shred the tickets. Such devices have had various objections among which may be cited the fact that they frequently jam by reason of the entry of too much material between the knives and they are liable to become inoperative due to the dulling of the knives.
It is an object of the invention to improve machines of this character by providing means for more uniformly feeding the stock thereto so as to minimize the possibilities of jam. Since this cannot be totally avoided, however, provision is made not only for protecting a driving motor which might become damaged if stalled with the current flowing but also to operate the machine by hand power to free the knives should jamming occur.
It is a further object of the invention to provide knives which are of a form which will more readily feed the material.
It is still another object of the invention to provide knives of a type which may be readily sharpened and maintained tight in spite of considerable wear.
These and other objects particularly relating to details of construction will be apparent from the following description read in conjunction with the accompanying drawings in which:
Fig. l is a vertical sectional view showing an embodiment of the invention;
Fig. 2 is a fragmentary sectional view showing the preferred knife construction;
Fig. 3 is a fragmentary sectional view showing further details of knife construction;
Fig. 4 is an elevation of a tool used to sharpen the knives, the mode of operation being indicated in the figure;
Fig. 5 is a vertical section showing the relationships of parts of the mechanism;
Fig. 6 is a fragmentary view showing a safety control;
Fig. '7 is a plan view illustrating the driving devices for the knives; and
Fig. 8 is a fragmentary elevation of a stripping element designed to cooperate with a knife.
The machine in the preferred form shown in the drawings comprises a casing 2 to which is removably secured a table 4 braced by a strut 6 which is removably held in position by a bracket 8 and also additionally supported by a hook member It removably engaging the casing. A hopper I2 supported by the table 4 is designed to receive 5 ticket or other paper stock to be destroyed from the table, there being provided in the bottom of the hopper a conveyor belt indicated at M which may be hand driven through a crank I6. An adjustable gate [8 serves to limit the delivery of the 10 stock maintaining it at a reasonably minimum amount to prevent excessive feed and jamming of the power driven parts of the apparatus. An apron guides the stock into a hopper 22. The hopper 22 has its lower open end located above 15 a pair of knives 24 and 26. These knives are driven in opposite directions by intermeshing gears, one of them having secured thereto a gear 28 driven by a pinion 3!] which is carried by a shaft 3! to which is secured a sprocket wheel 32 driven by a suitable chain upon a motor 34.
The knife 24 comprises a hub formed integral with blades 36. The knife 26 similarly is provided with blades 38 which are interleaved with the blades 36 as indicated in Figs. 2 .and 3. The blades are provided with V-shaped circumferential grooves as indicated at 40 thus providing sharp cutting edges which engage as the blades rotate. The blades are notched as indicated at 42 whereby they are better adapted to grip and feed the paper for cutting between the knives.
By the provision of V-shaped grooves in the peripheries of the blades it is made possible to maintain the successive blades in close contact and in sharp condition so as to be effective for cutting. This is readily accomplished by the use of a swaging tool indicated at 441 which is forcibly pressed into the groove of a blade and causes the edges to be forced outwardly thus providing a suitable take-up for wear. The angle of the tool 44 is greater than that of the grooves so that this action may be obtained as shown in Fig. 4. The blades may be made, for example, of high carbon tool steel which, while it is hard enough to provide effective cutting edges capable of withstand- 45 ing great wear, nevertheless it may be swaged as indicated.
In order to clear from between the blades the shredded material after it comes through the knives, there are provided strippers indicated at 46 which present teeth projecting into the grooves between the blades closely clearing both the blades and hubs. A chute 48 receives the shredded material and leads it to a position for discharge.
Since jamming can scarcely be entirely prevented in a machine of this character without the provision of excessive driving power, the shaft 3! is provided with a squared end arranged to receive a crank which may be turned by hand to rotate the blades either forwardly or backwardly to provide clearing therefrom of jammed material. An opening 59 in the wall of the casing is aligned with the end 38 of the shaft. Swinging so as to cover or uncover this opening is a guard plate 52 formed on the lower end of a lever 54 which is pivoted at 56 and engageable by a slide 58 which may be moved by an operator. The lever 54 is provided with a fork indicated at 60 which embraces the operating handle 62 of a switch 66.
The switch M is preferably of a type indicated, for example, in Patent 1,726,233, dated August 27, 1929. A switch of this character is arranged to open the circuit of a motor such as 34 when the current has excessive values such as occur upon stalling. When stalling occurs the circuit of the rotor 34 is opened by the switch and cannot be closed until the switch handle 62 is again moved to an elf position and later brought back to an on position. This is effected directly in the present instance by manipulation of the button or slide 58. When the switch is closed and the motor running the plate 52 closes the opening 50 so that an operator will not accidentally introduce the crank. On the other hand, when the crank engages the end 33 of the shaft I the motor cannot accidentally be started. There is thereby provided a safety arrangement which not only avoids damage to the driving motor but also gives insurance against accident when an attempt is made to clear the knives. By the use of a crank the knives may be rotated either forwardly or backwardly as to most effectively provide cleaning. In the operation of the machine, the ticket or other paper material may be fed into the hopper l2 by hand from the table i. The crank it can be turned by hand to then feed the material within the hopper. The gate i3 is preferably so adjusted that with ordinary hand speed of operation the hopper will never receive too much to be properly taken care of by the knives. Instead of driving the conveyor M by hand it may, of course, be driven by the motor 34 through suitable reduction gearing to give it a proper speed of operation.
It will be clear that numerous changes may be made in the embodiment of the invention without departing from the spirit thereof, as defined in the following claims.
What we claim and desire to protect by Letters Patent is:
1. A machine for destroying paper, or the like, including a pair of knives each comprising a hub integrally carrying a plurality of blades, the blades of one knife extending between the blades of the other to provide cutting engagements, the peripheries of the blades being provided with circumferential grooves meeting the sides of the blades to form sharp cutting edges.
2. A machine for destroying paper, or the like, including a pair of knives each comprising a hub integrally carrying a plurality of blades, the
blades of one knife extending between the blades of the other to provide cutting engagements, the peripheries of the blades being provided with circumferential grooves meeting the sides of the blades to form sharp cutting edges, the material being swaged outwardly at said edges to insure proper cutting.
3. A machine for destroying paper, or the like, including a pair of knives each comprising a hub integrally carrying a plurality of blades, the blades of one knife extending between the blades of the other to provide cutting engagements, the peripheries of the blades being provided with circumferential grooves meeting the sides of the blades to form sharp cutting edges, the edges of the blades being notched to assist in feeding the paper.
4. A machine for destroying paper, or the like, including a pair of knives each comprising a hub integrally carrying a plurality of blades, the blades of one knife extending between the blades of the other to provide cutting engagements, the peripheries of the blades being provided with circumferential grooves meeting the sides of the blades to form sharp cutting edges, the material being swaged outwardly at said edges to insure proper cutting, the edges of the blades being notched to assist in feeding the paper.
5. A machine for destroying paper, or the like, including a pair of knives each including a plurality of blades, the blades of one knife extending between the blades of the other to provide cutting engagements, the peripheries of the blades being provided with circumferential grooves meeting the sides of the blades to form sharp cutting edges.
6. A machine for destroying paper, or the like, including a pair of knives each including a plurality of blades, the blades of one knife extending between the blades of the other to provide cutting engagements, the peripheries of the blades being provided with circumferential grooves meeting the sides of the blades to form sharp cutting edges, the material being swaged outwardly at said edges to insure proper cutting.
'7. A machine for destroying paper, or the like, including a pair of knives each including a plurality of blades, the blades of one knife extending between the blades of the other to provide cutting engagements, the peripheries of the blades being provided with circumferential grooves meeting the sides of the blades to form sharp cutting edges, the edges of the blades being notched to assist in feeding the paper.
8. A machine for destroying paper, or the like, including a pair of knives each including a plurality of blades, the blades of one knife extending between the blades of the other to provide cutting engagements, the peripheries of the blades being provided with circumferential grooves meeting the sides of the blades to form sharp cutting edges, the material being swaged outwardly at said edges to insure proper cutting, the edges of the blades being notched to assist in feeding the paper.
CARL O. FEDDERN. LEWIS L. REMENTER. WALTER C. SCOTT.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US67985833 US2036207A (en) | 1933-07-11 | 1933-07-11 | Destroyer for tickets |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US67985833 US2036207A (en) | 1933-07-11 | 1933-07-11 | Destroyer for tickets |
Publications (1)
Publication Number | Publication Date |
---|---|
US2036207A true US2036207A (en) | 1936-04-07 |
Family
ID=24728666
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US67985833 Expired - Lifetime US2036207A (en) | 1933-07-11 | 1933-07-11 | Destroyer for tickets |
Country Status (1)
Country | Link |
---|---|
US (1) | US2036207A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE746592C (en) * | 1939-12-02 | 1944-12-27 | Device for shortening the dissolution time of the cellulose xanthogen | |
US3031745A (en) * | 1959-06-01 | 1962-05-01 | Dzialo Frank | Machine and method for reclaiming tin cans and the like to be made into alloyed billets of tin and metal |
DE1130683B (en) * | 1956-02-20 | 1962-05-30 | Bueroma Bueromaschinen Vertrie | Device for shredding paper, especially crumpled paper, cardboard and the like. like |
DE1185046B (en) * | 1960-10-24 | 1965-01-07 | Paul Soinsky | Device for cutting up documents and. like |
US3575329A (en) * | 1969-01-16 | 1971-04-20 | Ad R Hannabery | Jacket separator for flat strip cable |
DE2051756A1 (en) * | 1970-10-22 | 1972-04-27 | Schwarz, Werner, 7032 Sindelfingen | Device for shredding waste |
US3797765A (en) * | 1972-05-09 | 1974-03-19 | Speed O Print Business Machine | Paper shredder |
US4194698A (en) * | 1978-07-21 | 1980-03-25 | American Delphi, Inc. | Shredder |
US4377259A (en) * | 1980-03-21 | 1983-03-22 | Reclamet, Inc. | Chip and turnings separator and crusher |
US5211093A (en) * | 1990-10-22 | 1993-05-18 | Stephen Horniak | Apparatus for counting and disposing of tickets and method of using same |
US5833104A (en) * | 1995-06-29 | 1998-11-10 | Stephen Horniak | Ticket dispensing device |
-
1933
- 1933-07-11 US US67985833 patent/US2036207A/en not_active Expired - Lifetime
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE746592C (en) * | 1939-12-02 | 1944-12-27 | Device for shortening the dissolution time of the cellulose xanthogen | |
DE1130683B (en) * | 1956-02-20 | 1962-05-30 | Bueroma Bueromaschinen Vertrie | Device for shredding paper, especially crumpled paper, cardboard and the like. like |
US3031745A (en) * | 1959-06-01 | 1962-05-01 | Dzialo Frank | Machine and method for reclaiming tin cans and the like to be made into alloyed billets of tin and metal |
DE1185046B (en) * | 1960-10-24 | 1965-01-07 | Paul Soinsky | Device for cutting up documents and. like |
US3575329A (en) * | 1969-01-16 | 1971-04-20 | Ad R Hannabery | Jacket separator for flat strip cable |
DE2051756A1 (en) * | 1970-10-22 | 1972-04-27 | Schwarz, Werner, 7032 Sindelfingen | Device for shredding waste |
US3797765A (en) * | 1972-05-09 | 1974-03-19 | Speed O Print Business Machine | Paper shredder |
US4194698A (en) * | 1978-07-21 | 1980-03-25 | American Delphi, Inc. | Shredder |
US4377259A (en) * | 1980-03-21 | 1983-03-22 | Reclamet, Inc. | Chip and turnings separator and crusher |
US5211093A (en) * | 1990-10-22 | 1993-05-18 | Stephen Horniak | Apparatus for counting and disposing of tickets and method of using same |
US5833104A (en) * | 1995-06-29 | 1998-11-10 | Stephen Horniak | Ticket dispensing device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2036207A (en) | Destroyer for tickets | |
DK170591B1 (en) | Chopping and cutting machine | |
JPS58150443A (en) | Paper crusher and operation thereof | |
JP2002239405A (en) | Charging port for material to be shredded in shredder | |
US5772134A (en) | Recycling and solid material conversion apparatus and system | |
US4411391A (en) | Document shredding machines | |
US2202843A (en) | Shredding machine | |
US5065947A (en) | Method of shredding carbon paper | |
US2366017A (en) | Means for cutting casts | |
DE2827369C2 (en) | ||
DE2238778A1 (en) | PAPER SHREDDING DEVICE | |
DE2526650A1 (en) | Shredder for plastic scrap - with staggered counter rotating toothed cutter blades rotating at different speeds | |
US1851840A (en) | Sickle bar | |
US2101700A (en) | Crusher for used safety razor blades | |
US1736333A (en) | Machine for grinding meat and the like | |
CN211660181U (en) | Special kneader of accounting | |
US4944461A (en) | Carbon paper shredder | |
US1172114A (en) | Cutting attachment for grain-separators. | |
US2143123A (en) | Sisal and fiber cutting apparatus | |
US1350164A (en) | Meat-grinder | |
US1012615A (en) | Paper-reclaiming machine. | |
US2523034A (en) | Mill screen | |
EP0389487A1 (en) | Hammermills | |
US3085387A (en) | Rotary lawn mower sharpening hatch | |
US422657A (en) | Cane cutter or disintegrator |