US2318173A - Means for cutting sheets of different lengths from traveling webs - Google Patents

Means for cutting sheets of different lengths from traveling webs Download PDF

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US2318173A
US2318173A US449822A US44982242A US2318173A US 2318173 A US2318173 A US 2318173A US 449822 A US449822 A US 449822A US 44982242 A US44982242 A US 44982242A US 2318173 A US2318173 A US 2318173A
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Prior art keywords
sheets
web
impaling pins
alternately
sets
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US449822A
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Hans J Luehrs
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CB Cottrell and Sons Co
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Individual
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18Means for removing cut-out material or waste
    • B26D7/1836Means for removing cut-out material or waste by pulling out
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/202With product handling means
    • Y10T83/2074Including means to divert one portion of product from another
    • Y10T83/2087Diverging product movers
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/202With product handling means
    • Y10T83/2092Means to move, guide, or permit free fall or flight of product
    • Y10T83/2096Means to move product out of contact with tool
    • Y10T83/21Out of contact with a rotary tool
    • Y10T83/2118Stationary mover
    • Y10T83/212And plural rotating tools
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/202With product handling means
    • Y10T83/2092Means to move, guide, or permit free fall or flight of product
    • Y10T83/2183Product mover including gripper means
    • Y10T83/219Rotating or oscillating product handler
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/465Cutting motion of tool has component in direction of moving work
    • Y10T83/4766Orbital motion of cutting blade
    • Y10T83/4795Rotary tool
    • Y10T83/483With cooperating rotary cutter or backup

Definitions

  • My invention includes a novel means for cuting sheets of different lengths from a traveling web and delivering the sheets of a predetermined l length alternately in two directions.
  • My invention also includes cushioning means for said sets of impaling pins to eliminate shocks as the pins automatically return to their normal positions when handling sheets of a shorter selected length when they are severed from the traveling web.
  • FIG. l represents a vertical section through the pair of coacting rotary cutters, the parts being in the positions they assume when handling sheets of the maximum selected length;
  • Fig. 2 represents a similar view with the parts in the positions they assume when handling sheets of a shorter selected length
  • Fig. 3 represents adetail'horizontal section taken in the plane of the line 3-3 of Fig. 2, looking in the direction ofthe arrows;
  • Fig. .4. represents a perspective view of one ci the folded sheets delivered by the rotary cutters, a portion of one leaf of the sheet being turned back to show the printed matter located onthe inside of the two leaves of the folded sheet where the side edges of the sheet are to be stitched to form a bottom fold bag and reversed to bring the printed matter on the outside of the bag.
  • the means for severing sheets of a predetermined length withinwide limits from a traveling web are herein shown as comprising two coacting cutting and delivery cylinders I0, I of the proper diameter to handle the longest selected sheets.
  • Each of these cylinders I0 is shown as provided with two diametrically opposed cutting blades II, I2 arranged, in the present instance. to sever two sheets from the longitudinally folded traveling web during each rotation of the cylinders.
  • Each of these rotary cylinders is also shown as provided with a yieldingly mounted air cushioned set of impaling pins I3, the two sets being arranged to successively engage the traveling web and to convey thesheets severed from the web alternately in opposite directions to deliver the sheets to ltwo delivery points, indicated herein as the ⁇ bars I4, I4.
  • Strippers I5, I5 are provided for stripping the sheets from the impaling pins I3 and from the cutting and delivery cylinders for alternately delivering the sheets to the two delivery bars I4, I4.
  • Each .of the rotary cylinders I0 is provided with journals I6, I6 rotatably mounted in the side frames I1, I1, the journals at one side frame -being shown asconnected by the gears I8, I8 for causing the cylinders to rotate inunison.
  • These cylinders I0 may be driven at a predetermined constant speed from any suitable source of power, not shown herein.
  • a yielding support is provided for each set of impaling pins I3,'which support is shown as a rock shaft I9 disposed axially with respect to its rotary cylinder.
  • the impaling pin carrying arms project radially from the said rock shaft I9 through substantially semi-cylindrical-slots 2
  • A- transversely dis- A posed piston chamber 22 is located at, each end of the cylinder and it has a piston 23 slidably mounted therein, which piston has .a rack 24 f which meshes with a sector 25 on the said rock shaft I 9, whereby the sliding movement of the piston 23 will swing one set of impalin'g pins I3 toward and away from the Vcutting blade II on one cylinder and the other set toward and away from the cutting blade I2 on theother cylinder.
  • the means which I have shown for yieldingly mounting. the sets of impaling pins is a coil spring.
  • the cushion which I have provided for preventing each of the pin supports from returning too quickly to its normal position adjacent its cuting blade after the support has been swung away therefrom when handling shorter sheets, is shown herein as the air space formed'between the closure cap 28 and the adjacent end of the piston 23.
  • the means which I have shown in .the present instance for feeding sheets of different predetermined lengths to the cutters is shown as including'a former 29 over which the traveling web is longitudinally folded; feed rolls 30, 30 and nipping rolls 3
  • the speed of the web is the same as the surface speed of the rotary cutters; In this instance the impaling pins will maintain their normal position, adjacent their cutting .blade as the cutters are rotated.
  • the strippers I5 strip the sheets from the impaling pins and the cutters as the sheets are severed from the web, and deliver the sheets.
  • sheets of different predetermined lengths may be cut from a traveling web without adjustment of the rotary cutters or changing their rotative speed.
  • a pair of rotary cutters for severing sheets of diiferent lengths from a traveling web and delivering the sheets alternately in two directions including yieldingly mounted sets of impaling pins for alternately engaging the web as the preceding sheets are severed therefrom, and devices for stripping the alternate sheets from their respective impaling pins and cutters.
  • a pair of rotary cutters for severing sheets of dverent lengths from a traveling web and delivering thevsheets alternately in two directions including sets of impaling pins on said cylinders for alternately engaging the web as the preceding sheets are severed therefrom, and yieldingly mounted supports for the sets of impaling pins.
  • a pair of rotary cutters for severing sheets of different lengths from a traveling web and delivering the sheets alternately in two directions including sets of impaling pins for alternately engaging the web as the preceding sheets are severed therefrom, and yieldingly mounted air cushioned supports for the sets of impaling pins.
  • a pair of rotary cutters for severing sheets of different lengths from a traveling web and delivering the sheets alternately in two directions including sets of impaling pins for alternately engaging the web as the preceding sheets are severed therefrom, yieldingly mounted supports for the sets of impaling pins, and devices for stripping the alternate sheets from their respective impaling pins and cutters.
  • a pair of rotary cutters for severing sheets of different lengths from a traveling web and delivering the sheets alternately in two directions including sets of impaling pins for alternately engaging the web as the vpreceding sheets are severed therefrom, yieldingly mounted air cushioned supports for the sets of impaling pins, and devices for stripping the alternate sheets from their respective impaling pins and cutters.
  • a pair of rotary cutters for severing sheets of different lengths from a traveling web and delivering the sheets alternately in two directions including sets of impaling pins for alternately engaging the web as the preceding sheets are severed therefrom, and yieldingly mount-ed supports for the sets of impaling pins, each support including a rock shaft, arms projecting therefrom and carrying the impaling pins, a piston having a rack and sector connection with the rock shaft and a spring pressing on the piston.
  • a pair of rotary cutters for severing sheets of different lengths from a traveling web and delivering the sheets alternately in two directions including sets of impaling pins for alternately engaging the web as the preceding sheets are severed therefrom, and yieldingly mounted supports for the sets of impaling pins, each support including a rock shaft, arms projecting therefrom and carrying the impaling pins, a piston having a rack and sector connection with the rock shaft and a spring pressing on the piston, and means for stripping the alternate sheets from their respective impaling pins and cutters.
  • a pair of rotary cutters for severing sheets of dinerent lengths from a traveling web and delivering the sheets alternately in two directions
  • each support including a rock shaft, arms projecting therefrom and carrying the impaling pins, a slidable piston having a rack and sector connection with the rock shaft, a spring pressing on the piston and an air cushion for the piston.
  • eachsupport including a, rock shaft, arms projecting therefrom and carrying the impaling pins, a slidable piston having a rack. and sector connection with the rock shaft, a spring pressing on the piston and an air cushion for the piston, and means for stripping the alternate sheets from their respective impaling pins and cutters.

Description

May 4,' l943 H. J. LUEHRs 2,318,173
MEANS FOR CUTTING SHEETS OF DIFFERENT LENGTHS FROM TRAVELING WEBS Filed July 4, 1942 F, ff]
Patented May 4, 1943 MEANS FOR CUTTING SHEETS OF DIF- FERENT LENGTHS FROM TvRAVELINGrl WEBS Hans J. Luehrs, Westerly, R. I., assignor to C. B. I. a
Cottrell & Sons Company, Westerly, R.
corporation of Delaware Application July 4, 1942, Serial No. 449,822
14 Claims.
My invention includes a novel means for cuting sheets of different lengths from a traveling web and delivering the sheets of a predetermined l length alternately in two directions.
My invention also includes cushioning means for said sets of impaling pins to eliminate shocks as the pins automatically return to their normal positions when handling sheets of a shorter selected length when they are severed from the traveling web.
A practical embodiment of myv invention is represented in the accompanying drawing, in which- Fig. l represents a vertical section through the pair of coacting rotary cutters, the parts being in the positions they assume when handling sheets of the maximum selected length;
Fig. 2 represents a similar view with the parts in the positions they assume when handling sheets of a shorter selected length;
Fig. 3 represents adetail'horizontal section taken in the plane of the line 3-3 of Fig. 2, looking in the direction ofthe arrows; and
Fig. .4. represents a perspective view of one ci the folded sheets delivered by the rotary cutters, a portion of one leaf of the sheet being turned back to show the printed matter located onthe inside of the two leaves of the folded sheet where the side edges of the sheet are to be stitched to form a bottom fold bag and reversed to bring the printed matter on the outside of the bag.
The means for severing sheets of a predetermined length withinwide limits from a traveling web are herein shown as comprising two coacting cutting and delivery cylinders I0, I of the proper diameter to handle the longest selected sheets. Each of these cylinders I0 is shown as provided with two diametrically opposed cutting blades II, I2 arranged, in the present instance. to sever two sheets from the longitudinally folded traveling web during each rotation of the cylinders. Each of these rotary cylinders is also shown as provided with a yieldingly mounted air cushioned set of impaling pins I3, the two sets being arranged to successively engage the traveling web and to convey thesheets severed from the web alternately in opposite directions to deliver the sheets to ltwo delivery points, indicated herein as the `bars I4, I4.
Strippers I5, I5 are provided for stripping the sheets from the impaling pins I3 and from the cutting and delivery cylinders for alternately delivering the sheets to the two delivery bars I4, I4.
Each .of the rotary cylinders I0 is provided with journals I6, I6 rotatably mounted in the side frames I1, I1, the journals at one side frame -being shown asconnected by the gears I8, I8 for causing the cylinders to rotate inunison. These cylinders I0 may be driven at a predetermined constant speed from any suitable source of power, not shown herein. l
A yielding support is provided for each set of impaling pins I3,'which support is shown as a rock shaft I9 disposed axially with respect to its rotary cylinder. The impaling pin carrying arms project radially from the said rock shaft I9 through substantially semi-cylindrical-slots 2| in the periphery of the cylinder, to bring the impaling pins slightly beyond the periphery in position to engage the traveling web. A- transversely dis- A posed piston chamber 22 is located at, each end of the cylinder and it has a piston 23 slidably mounted therein, which piston has .a rack 24 f which meshes with a sector 25 on the said rock shaft I 9, whereby the sliding movement of the piston 23 will swing one set of impalin'g pins I3 toward and away from the Vcutting blade II on one cylinder and the other set toward and away from the cutting blade I2 on theother cylinder. The means which I have shown for yieldingly mounting. the sets of impaling pins is a coil spring.
26 located in each of the piston chambers 22 between a closure cap 21 and one end of the said piston 23.
The cushion which I have provided for preventing each of the pin supports from returning too quickly to its normal position adjacent its cuting blade after the support has been swung away therefrom when handling shorter sheets, is shown herein as the air space formed'between the closure cap 28 and the adjacent end of the piston 23. 45
The means which I have shown in .the present instance for feeding sheets of different predetermined lengths to the cutters is shown as including'a former 29 over which the traveling web is longitudinally folded; feed rolls 30, 30 and nipping rolls 3|, 3I being provided for feeding the' web at the required speed according to the length of sheets to lbe cut therefrom, and delivered to the two delivery points.
In operation, when sheets of the maximum length are to be cut from the traveling web and delivered, as shown in Fig. 1, the speed of the web is the same as the surface speed of the rotary cutters; In this instance the impaling pins will maintain their normal position, adjacent their cutting .blade as the cutters are rotated. As the web is carried forward by the impaling pins the strippers I5 strip the sheets from the impaling pins and the cutters as the sheets are severed from the web, and deliver the sheets. p
When sheets of a lesser than the maximum length are to be cut from the web and delivered, the speed of the web is correspondingly reduced. This causes the set of impaling pins which engages the web as the preceding sheet is cut therefrom, to yield against the pressure ofthe spring 26 until the sheet is cut from the web. As the impaling pins return with the sheet to their normal position adjacent their cutting blade, the sheet is stripped from the impaling pins and the cutter. The impaling pins will then engage the web at the proper time, it being understood that in the meantime the impaling pins on the other rotary cutter have carried through their cycle of operations.
To prevent the impaling pins to be returned by the spring 22 at such a high speed as would tend to cause slapping or knocking, I provide the air cushion, hereinbefore described, to control this return speed.
While I have described this cutting mechanism in connection withV a longitudinally folded traveling web for cutting bottom folded sheets therefrom, it is to be understood that this mechanism can be equally well employed in cutting nonfolded sheets from a traveling web. A
It will also beseen that by the use of the cutting mechanism hereinbefore set forth, sheets of different predetermined lengths may be cut from a traveling web without adjustment of the rotary cutters or changing their rotative speed.
It is evident that various changes may be resorted to in the construction, form and arrangement of theseveral parts without departing from the spirit and scope of my invention and hence I do not intend to be limited to the particular embodiment herein shown and described, but what I claim is:
1. A pair of rotary cutters for severing sheets of l diierent lengths from a traveling web and delivering the sheets alternately in two` directions, in-
cluding yieldingly mounted sets of vimpaling pins on said cylinders for alternately engagingthe web as the preceding sheets are severedy therefrom.
2. A pair of rotary cutters for severing sheets of different lengths from a traveling web and delivering the sheets alternately in two directions, including yieldingly mounted air cushioned sets Y of impaling pins on said cylinders for alternately engaging the web as the preceding sheets are severed therefrom. l
3. A pair of rotary cutters for severing sheets of diiferent lengths from a traveling web and delivering the sheets alternately in two directions, including yieldingly mounted sets of impaling pins for alternately engaging the web as the preceding sheets are severed therefrom, and devices for stripping the alternate sheets from their respective impaling pins and cutters.
4. A pair of rotary cutters for severing sheets of different lengths from a traveling web and delivering the sheets alternately in two directions, including yieldingly mounted air cushioned sets of impaling pins for alternately engaging the web as the preceding sheets are severed therefrom, and
devices for stripping the alternate sheets from their respective impaling pins and cutters.
5. A pair of rotary cutters for severing sheets of diilerent lengths from a traveling web and delivering thevsheets alternately in two directions, including sets of impaling pins on said cylinders for alternately engaging the web as the preceding sheets are severed therefrom, and yieldingly mounted supports for the sets of impaling pins.
6. A pair of rotary cutters for severing sheets of different lengths from a traveling web and delivering the sheets alternately in two directions, including sets of impaling pins for alternately engaging the web as the preceding sheets are severed therefrom, and yieldingly mounted air cushioned supports for the sets of impaling pins.
'7. A pair of rotary cutters for severing sheets of different lengths from a traveling web and delivering the sheets alternately in two directions, including sets of impaling pins for alternately engaging the web as the preceding sheets are severed therefrom, yieldingly mounted supports for the sets of impaling pins, and devices for stripping the alternate sheets from their respective impaling pins and cutters.
8. A pair of rotary cutters for severing sheets of different lengths from a traveling web and delivering the sheets alternately in two directions, including sets of impaling pins for alternately engaging the web as the vpreceding sheets are severed therefrom, yieldingly mounted air cushioned supports for the sets of impaling pins, and devices for stripping the alternate sheets from their respective impaling pins and cutters.
9. A pair of rotary cutters for severing sheets of different lengths from a traveling web and delivering the sheets alternately in two directions, including sets of impaling pins for alternately engaging the web as the preceding sheets are severed therefrom, and yieldingly mount-ed supports for the sets of impaling pins, each support including a rock shaft, arms projecting therefrom and carrying the impaling pins, a piston having a rack and sector connection with the rock shaft and a spring pressing on the piston.
10. A pair of rotary cutters for severing sheets of different lengths from a traveling web and delivering the sheets alternately in two directions, including sets of impaling pins for alternately engaging the web as the preceding sheets are severed therefrom, and yieldingly mounted supports for the sets of impaling pins, each support including a rock shaft, arms projecting therefrom and carrying the impaling pins, a piston having a rack and sector connection with the rock shaft and a spring pressing on the piston, and means for stripping the alternate sheets from their respective impaling pins and cutters. 11. A pair of rotary cutters for severing sheets of dinerent lengths from a traveling web and delivering the sheets alternately in two directions,
including sets'of impaling pins for alternately engaging the web as the preceding sheets are severed therefrom, andryieldingly mounted air cushioned supports for the sets of impaling pins, each support including a rock shaft, arms projecting therefrom and carrying the impaling pins, a slidable piston having a rack and sector connection with the rock shaft, a spring pressing on the piston and an air cushion for the piston.
12. A pair of rotary cutters for' severing sheets of different lengths from a traveling web and delivering the sheets alternately in two directions. including sets of impaling pins for alternately engaging the web as the preceding sheets arev severed therefrom, and yieidingly mounted air cushioned supports for the sets of impaling pins,
eachsupport including a, rock shaft, arms projecting therefrom and carrying the impaling pins, a slidable piston having a rack. and sector connection with the rock shaft, a spring pressing on the piston and an air cushion for the piston, and means for stripping the alternate sheets from their respective impaling pins and cutters.
' 13. A pair of rotary cutters for severing sheets of diierent lengths from a traveling web and delivering the sheets alternately in two directions, including sets of impaling pins for alternately engaging the web as the preceding sheets are severed therefrom, yieldingly mounted supports for the sets of impaling pins, each support including 'a rock shaft, arms projecting therefrom and carrying the impaling pins, a piston A having a rack and sector connection with the rock shaft and a spring pressingoon the piston.; f
and devices for stripping the alternate sheets from their respective impaling pins and cutters. 14. A pair of rotary cutters for severing sheets oi different lengthsffrom a traveling web and delivering the sheets alternately in two direc- HANS J. LUEHRS. v
US449822A 1942-07-04 1942-07-04 Means for cutting sheets of different lengths from traveling webs Expired - Lifetime US2318173A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3593606A (en) * 1969-06-06 1971-07-20 William B Raybuck Web feeding mechanism
JPS50123411U (en) * 1974-03-25 1975-10-08
DE3637110C1 (en) * 1986-10-31 1988-05-19 Heidelberger Druckmasch Ag Device for cutting and dividing a continuous flow of printed products
DE3640373A1 (en) * 1986-11-26 1988-06-09 Winkler Duennebier Kg Masch METHOD AND DEVICE FOR PRODUCING FOLDED PAPERS AND THE LIKE
US5370024A (en) * 1992-06-16 1994-12-06 Color Communication, Inc. Apparatus for the manufacture of sheets bearing display samples
US5713256A (en) * 1994-03-09 1998-02-03 The Langston Corporation Dual speed limits for a cut-off
US5806392A (en) * 1994-07-01 1998-09-15 Thomas J. Lipton, Co., Division Of Conopco, Inc. Producing shaped articles

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3593606A (en) * 1969-06-06 1971-07-20 William B Raybuck Web feeding mechanism
JPS50123411U (en) * 1974-03-25 1975-10-08
JPS5233292Y2 (en) * 1974-03-25 1977-07-29
DE3637110C1 (en) * 1986-10-31 1988-05-19 Heidelberger Druckmasch Ag Device for cutting and dividing a continuous flow of printed products
DE3640373A1 (en) * 1986-11-26 1988-06-09 Winkler Duennebier Kg Masch METHOD AND DEVICE FOR PRODUCING FOLDED PAPERS AND THE LIKE
US4969862A (en) * 1986-11-26 1990-11-13 Winkler & Duennebier Maschinenfabrik Und Eisengiesserei Gmbh & Co. Kg. Method and apparatus for producing folded articles
US5370024A (en) * 1992-06-16 1994-12-06 Color Communication, Inc. Apparatus for the manufacture of sheets bearing display samples
US5622594A (en) * 1992-06-16 1997-04-22 Color Communications, Inc. Apparatus for the manufacture of sheets bearing display samples
US5713256A (en) * 1994-03-09 1998-02-03 The Langston Corporation Dual speed limits for a cut-off
US5806392A (en) * 1994-07-01 1998-09-15 Thomas J. Lipton, Co., Division Of Conopco, Inc. Producing shaped articles

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