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7171884 |
Resilient cutting blades and cutting devices
Steel reinforced tire fabrics are cut with long rigid bar blades, circular disc blades and disc and anvil blades. All of these blades may have an open relatively deep slot spaced close to the...
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6631664 |
Slitting shears
Slitting shears comprising two knife shafts which are adjustable in relation to one another and are equipped with at least one knife each are described. Some of the knives are adjustable by means...
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6626096 |
Redemption ticket maker
A ticket making apparatus includes a feed mechanism and a perforating assembly set within a housing that has an opening through which tickets are dispensed. The perforating assembly perforates a...
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6536320 |
Slitter cutting element and method of making same
A slitter cutting element for slitting a sheet of web material has an axially displaceable blade member arranged on a blade carrier. The axially displaceable blade member is biased by an...
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6308601 |
Apparatus and method for slitting a sheet of web material
An apparatus for slitting a sheet of web material has an at least one first fixed blade member and axially displaceable at least one second blade member. The axially displaceable second blade...
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5881624 |
Media cutting apparatus
A cutting apparatus in a strong plastic housing having two rotatable slitter blades. The cutting apparatus is mounted on a guide rail for movement by hand across a tightly held sheet of media such...
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5865083 |
Holder unit for a rotary knife pair
A knife holder unit combined with a rotary knife pair includes a frame composed of an upper frame part and a lower frame part; and an upper and a lower knife holder assembly supported in the upper...
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5797830 |
Multi use paper and card stock cutter
A multi-use cutter is especially useful for cutting standard size paper and card stock into business card sizes. The preferred model of the multi-use cutter will measure six inches deep by fifteen...
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5596918 |
Sports card slitting device and method
A slitting assembly for producing a plurality of "interrupted cut" slits in a large sheet of sport card photos includes a horizontal support track carrying a plurality of individual upper slitting...
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5555610 |
Tenter frame, apparatus for use with tenter frame and methods of use
The invention relates to a tenter frame for treating web materials such as woven or knitted fabrics, film or the like, to apparatus for removing a web from a tenter while controlling the web and to...
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5373766 |
Slitter knife holder
A holder for a circular cutting knife for slitting sheet metal, comprising a precision ground mounting shaft for attaching the cutting knife, the mounting shaft rotatably retained within a housing...
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5365821 |
Shoulder knife and cutting device
The invention relates to a circular knife (12) as well as a cutting device (11-15) for cutting materials into webs. The cutting device comprises at least one circular knife (12) arranged on a shaft...
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5197366 |
Roller assembly for paperboard slitting apparatus
A roller assembly for supporting a running web of corrugated paperboard in a slitting apparatus includes a pair of rollers which define therebetween a slot for receipt of a rotary slitting blade....
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5188012 |
Substrate machining device having improved blade contact
A device for machining sheet like material comprises first and second substantially circular machining tools having peripheral machining edges. The tools are each mounted on a shaft for rotation...
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5146827 |
Slitter moving mechanism
A slitter moving mechanism includes an upper and a lower blade unit with an upper and lower blade respectively, the upper blade being movable between a slitting position to slit a web in a feed...
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5138921 |
Device for cutting and/or slitting a travelling sheet or web of material to form box-type packages
A device for cutting and/or slitting travelling webs or sheet-like board material includes a pair of coacting rotary circular knives mounted on each side of the path of the web with the two...
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5135178 |
Knife shaft assembly for document shredders
A knife shaft assembly (1) for a document shredder formed from a series of cutting disks (3) arranged on a shaft (2) with spacer rings (4) disposed between them. The spacer rings (4) are...
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5115992 |
Food cutting machine
The invention comprises a machine for slicing food products into then strips. Two stacks of spaced, axially aligned circular blades are positioned so as to be driven in counterrotating intermeshing...
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5110060 |
Cutter enhancement for plastic size reduction equipment
This invention pertains to the cutter area of size reduction equipment for plastic or other waste material. The primary objective of the invention is to provide a primary and secondary cutting area...
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5085110 |
Cutting device for the longitudinal cutting of foil lengths
A cutting device for layered or unlayered foil lengths, having good cut quality and an extended period of use before re-grinding of the cutter is required, consists of cylindrically shaped keyway...
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5042349 |
Cutter
A cutter for cutting sheets of material, paper and the like comprises a cup-type main rotary blade and a sub-rotary blade. The main rotary blade is supported by a main rotary shaft and has an edge...
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5007318 |
Metal strip edge trimming apparatus
An edge trimmer for trimming the side edges of a running length of metal strip having upper and lower rotary shearing cutter discs engaging the top and bottom respectively, of the strip being...
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4922778 |
Apparatus for cutting metal sheet
In an apparatus for cutting a metal sheet, a pair of hollow shafts are mounted in a housing for angular movement relative thereto. The hollow shafts have respective hollow bores whose respective...
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4905554 |
Cutter for use in paper manufacturing
An improvement in cutters used in the field of paper manufacturing consisting in that the support-bearing for the knife is connected to a raising and lowering device through a structure elastically...
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4785699 |
Windshield wiper blade slitting device
A device for slitting an elastomeric strip into two identical halves of cross-section suitable for use as windshield wiper blades includes a drive roller which grips the strip and draws it through...
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4784030 |
Slitter apparatus
Disclosed is an apparatus to longitudinally cut a cord reinforced rubber sheet into at least two strips of tire ply stock while the sheet is being conveyed past the apparatus. The apparatus...
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4643058 |
Floating gang rotary slitting device and method
The present invention provides a method and apparatus for slitting sheet material. The apparatus includes a first arbor shaft for mounting and rotatably driving a first rotary cutter. The first...
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4559855 |
Plural mode copy sheet output slitter
In a copier with a copy sheet output slitter for slitting the copy sheets outputted by the copier into a selected plural number of smaller sub-sheets cut in the direction of movement of the...
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4548117 |
Non-dulling slitter
A circular rotary slitter construction comprises a body hub having a circular perimeter and at least one axially facing surface. A cutting edge hoop cylinder is fixedly mounted on the body hub...
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4543774 |
Harvesting attachment for stalk fruits standing in rows
An attachment for a field chopping machine has a cutting device arranged in a picking region of a working unit and having two cutting disks which rotate in opposite directions and arranged so that...
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4543867 |
Slitter knife holder
A slitter knife holder has a rod for supporting a slitter knife. Strain gauges are attached to the rod. There is provided a conversion circuit for converting changes in electric resistance of the...
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4506577 |
Slitter apparatus
A slitter apparatus for slitting a sheet member such as a corrugated cardboard or the like into predetermined widths. At least one pair of upper and lower rotary cutters and at least one pair of...
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4330092 |
In-line shredder apparatus
A shredder includes a pair of blade assemblies operated at high speeds to receive and shred paper material, such as notes or coupons. The blades of the assemblies are disposed to contact and...
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4275631 |
Slitting apparatus
Apparatus for slitting sheet material includes a pair of rotatable shafts having cooperating cutting knife assemblies thereon. The knives on one shaft are in the form of axially-spaced knife rings...
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4143572 |
Contacting overlapped cutting discs
In a cutting device of the shearing type comprising two circular blades one of which is in the form of an elastic disc displaceable on a bracket by pressure from a pressure element engaged by a...
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4061063 |
Rotary shear
A high-speed rotary shear for making, in the direction of travel, straight cuts, curved cuts, and combinations thereof, through a continuously moving web of thin, pliable, compliant, cut-resistant...
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4028973 |
Cutting device
An arrangement for dampening vibrations in and lubricating the operative edges of a pair of cooperating sheet cutting discs. A block member having a surface comprised of a solid lubricant is...
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3994193 |
Air bearing slitter
An air bearing slitter wherein the slitter disc is mounted on a hub that is freely rotatable and axially movable relative to a shaft on an air bearing. This arrangement has been found to improve...
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3977285 |
Cutting tool for longitudinally cutting continuous sheets of film
A cutting tool consists of circular, rotatably mounted upper and lower blades, the upper blade extending past the periphery of the cutting shoulder of the lower blade and bearing resiliently...
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3951024 |
Gang locking means for slitter heads
Slitting apparatus for trimming the edges of a web of corrugated board and longitudinally cutting the web into a plurality of narrow webs is constructed with selectively operable fluid operated...
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3929047 |
Longitudinal cutting and/or grooving machine for material webs in motion, particularly cardboard means
A longitudinally cutting and grooving machine for material webs in motion, in particular cardboard webs, comprising a plurality of tool pairs on opposite sides of the web, including separate...
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3892156 |
Knife holders for slitter winding machines and the like
A pressure fluid operated knife holder comprising a cylinder having a piston and piston rod therein, and a knife head carried by the piston rod. The piston, piston rod and knife head assembly are...
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3877335 |
Circular blade apparatus for slitting webs of material
In an apparatus for slitting a web of material such as paper continuously passed therethrough and including a first circular blade rotatably mounted about an axially fixed first shaft, a...
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3861123 |
BAG CLOSURE APPARATUS
Apparatus for automatically creasing and folding the open ends of filled "tin-tie" bags. The apparatus includes opposed gripping belts for moving the bags linearly and continuously through creasing...
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3782234 |
GRIPPING SHAFT
A clamping shaft for clamping a rotating element comprises a generally closed tubular core having an inlet adapted to be connected to a pressure fluid source, and radial bore means communicating...
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3739670 |
AUTOMATIC FEEDING, POWER-OPERATED ENVELOPE OPENER
An automatic feeding, power-operated envelope opener which is operative in such a manner that, when a switch actuating lever is operated by an envelope travelling on an envelope mounting table, an...
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3682032 |
SLITTER WITH SHARPNESS RETENTION CAPABILITY
A shear type slitter for a moving web of material, comprising a pair of disc-shaped slitter members which overlap slightly and are toed toward the oncoming sheet. Each member includes a thin lip...
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3621746 |
TRIMMERS
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3455094 |
HARVESTER WITH OVERLAPPING DISC CUTTERS
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3376774 |
Slitter and adjustable edge trimmer for a continuously moving web
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