Patents Assigned to E.C.H. Will GmbH
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Publication number: 20050077171Abstract: The invention relates to apparatus for treating a multi-panel or multi-sheet web of paper or similar electrostatically chargeable material. A multi-layer web of such material is advanced toward and through at least one cutter to yield a succession of stacks which are ready for assembly into piles and/or for other processing. The arrangement for moving the web and there-upon the stacks lengthwise includes a first unit up-stream and a second unit downstream of the cutter, and an ionizing unit is installed adjacent the path of the web and stacks, either between the first moving unit and the cutter or between the cutter and the second moving unit. In either event, the ionizing unit is closely adjacent the cutter. If the stacks are to be assembled into a succession of piles downstream of the second moving unit, the apparatus further comprises an electrostatic discharging device in the region of the pile forming station.Type: ApplicationFiled: September 22, 2004Publication date: April 14, 2005Applicant: E.C.H. Will GmbHInventors: Gunther Hagemann, Thorsten Gadtke, Frank Herpell
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Publication number: 20050056523Abstract: Apparatus and method for conveying objects generally transversely to a direction of initial delivery. The apparatus uses two conveying arrangements which can move independently of one another. Each of the two conveying arrangements have a transport region and a return region. A dividing gap is arranged between the two conveying arrangements. A sliding mechanism can be positioned to at least one of adjust a length of the transport regions and adjust a length of the return regions. An equalizing mechanism can be positioned to at least one of compensate for the change in the return regions and compensate for the change in the transport regions. The sliding mechanism and the equalizing mechanism are separate mechanisms. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.Type: ApplicationFiled: July 30, 2004Publication date: March 17, 2005Applicant: E.C.H. Will GmbHInventor: Volkmar Voigtlander
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Publication number: 20050029733Abstract: A conveying arrangement for sheet quires includes successively arranged conveying devices of which a downstream conveying device as seen in a conveying direction has a lower speed than an upstream conveying device and at least one ionization device for electrostatic charging of the sheet quires. The downstream conveying device includes a suction device for administering suction air to the sheet quires at stationary suction openings.Type: ApplicationFiled: July 26, 2004Publication date: February 10, 2005Applicant: E.C.H. Will GmbHInventors: Gunther Hagemann, Frank Herpel, Jurgen Peter
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Publication number: 20040251587Abstract: Device for stacking an incoming sheet stream wherein the device includes a sheet conveying device that feeds sheets to be stacked, a receiver device adapted to support a stack of the sheets, a separating element for separating the stack into a collected stack and a pre-collected stack, whereby the collected stack can be removed before the pre-collected stack, and a holding device for holding the pre-collected stack. The holding device has a first crossbeam and a plurality of holding elements arranged on the first crossbeam. A separating table is adapted to receive the pre-collected stack during stack changing. A forward guiding device is a adapted to at least one of guide the stack and align the stack. A rear guiding device is adapted to at least one of guide the stack and align the stack. The rear guiding device has a movable guide arrangement adapted to move vertically relative to a plane of the separating table.Type: ApplicationFiled: February 13, 2004Publication date: December 16, 2004Applicant: E.C.H. Will GmbHInventors: Norbert Rilitz, Rainer Kehrls
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Publication number: 20040194602Abstract: A cutting tool for belts has a zigzag cutting structure with at least three cutting edges. Respectively two adjacent and transverse cutting edges are joined at a common end.Type: ApplicationFiled: August 26, 2003Publication date: October 7, 2004Applicant: E.C.H. Will GmbHInventor: Volkmar Voigtlander
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Patent number: 6527501Abstract: An apparatus for gathering successive sheets of a scalloped stream in an adjustable receptacle has a pivotable first stop in front of and a longitudinally adjustable second stop behind the receptacle. The second stop is shifted, together with the conveyor for the stream, toward or away from the first stop when the length of the sheets forming the stream is changed. The effective width of the receptacle is adjusted when a stream of relatively narrow sheets is followed by a stream of wider sheets or vice versa.Type: GrantFiled: October 28, 1999Date of Patent: March 4, 2003Assignee: E.C.H. Will GmbHInventor: Wolfram Wolf
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Patent number: 6481952Abstract: Apparatus for accumulating successive stacks of superimposed sheets on discrete pallets employs a conveyor which delivers a continuous imbricated stream of sheets to a stacking station where a pallet descends with an elevator and gathers a first stack. A separating finger is inserted into the accumulation of sheets at the stacking station at a level above the topmost sheet of the fully grown first stack.Type: GrantFiled: December 20, 2001Date of Patent: November 19, 2002Assignee: E.C.H. Will GmbHInventors: Robert Deutschle, Norbert Rilitz
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Patent number: 6338482Abstract: A file of successive sheets is delivered to a converting station by a faster first conveyor, and a stream of partially overlapping sheets is removed by a slower second conveyor. Partial overlapping between the leading sections of successive sheets in the file and the trailing sections of the respective preceding sheets in the stream is due to the difference between the speeds of the two conveyors. A deflector assembly at the converting station ensures that the leading sections of successive sheets of the file can predictably overlap with the trailing sections of the immediately preceding sections of the stream by causing the trailing sections to move out of the way of oncoming leading sections and/or vice versa.Type: GrantFiled: November 5, 1999Date of Patent: January 15, 2002Assignee: E.C.H. Will GmbHInventors: Matthias Geske, Bernd Höpner
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Patent number: 6263775Abstract: One rotary knife carrier of a pair of carriers in a cross cutter for running webs of paper, cardboard or the like has longitudinally extending peripheral recesses for disposable elongated strip-shaped knives each of which has a first lateral surface abutting and slidable along a supporting surface of the carrier in the respective recess, and a second lateral surface contacted by a retaining surface of an elongated clamping member which is urged against the second lateral surface by the head(s) of one or more tensioning bolts having shanks extending with clearance through openings in the clamping member and into tapped bores in the carrier. The clamping member is in form-locking frictional and/or mechanical engagement with the knife and is shiftable relative to the carrier to adjust the knife, e.g.Type: GrantFiled: February 22, 1999Date of Patent: July 24, 2001Assignee: E.C.H. Will GmbHInventors: Dirk Vössing, Wolfram Szczepaniak
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Patent number: 5687644Abstract: Apparatus for expelling air from between the sheets of stacks of superimposed sheets has a conveyor which advances successive stacks of a series of stacks along a horizontal first path from a stack assembling first station toward a second station. The conveyor employs a reciprocable carriage for one or more tongs which engage the front end portion of fresh stack at the first station and entrain the stack toward the second station. A roller is mounted in a conveyance for repeated movement with the conveyance along a downwardly sloping second path from a raised position above and away from the first path to a lowered position of engagement with successive stacks which are being advanced toward the second station.Type: GrantFiled: June 13, 1996Date of Patent: November 18, 1997Assignee: E.C.H. Will GmbHInventors: Harald Rann, Norbert Rilitz, Holger Schauer
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Patent number: 5623850Abstract: Apparatus for ascertaining the width, the length, the coarseness of cut edges and/or other selected characteristics of sheets of paper or the like has a sheet testing unit employing one or more cameras for the monitoring of a sheet which is maintained in a predetermined position at a predetermined location, a feeding unit which supplies sheets to be tested from a source of sheets to the predetermined location, and an evacuating unit which withdraws freshly tested sheets from the predetermined location. Signals denoting the results of tests can be used to regulate the operation of the machine or production line which makes and/or processes the sheets, and the evacuated satisfactory tested sheets can be returned into such machine or production line.Type: GrantFiled: March 12, 1996Date of Patent: April 29, 1997Assignee: E.C.H. Will GmbHInventors: Wolfram Szczepaniak, Harald Rann, Frank Hornicke
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Patent number: 5441254Abstract: Apparatus for manipulating streams of discrete sheets or webs of coherent sheets has a frame for a carriage which supports several tools for depression, alignment, orientation, stoppage, severing, flexing and/or other manipulation of sheets. At least some of the tools are adjustable in or counter to the direction of advancement of sheets and/or transversely of the direction of advancement of sheets in order to change the setup for the manipulation of different sheets or for a different manipulation of sheets. The operation of the parts which serve to adjust the tools can be automated, and such parts comprise a locating device which is movable longitudinally or transversely of the path for the sheets or web and can be coupled to two or more discrete distancing elements which are affixed to or form part of holders for the tools.Type: GrantFiled: July 8, 1994Date of Patent: August 15, 1995Assignee: E.C.H. Will GmbHInventor: Alfred Besemann
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Patent number: 5417535Abstract: Books or brochures are produced by transporting a series of elongated piles of superimposed paper sheets longitudinally through at least one bonding station where certain marginal portions of the sheets of each pile are adhesively connected to each other, and thereupon sideways through a laminating station wherein the piles are provided with rigid or semirigid covers which are glued to the outer sides of their outermost sheets. The piles are then advanced lengthwise through a backstripping station, are compressed subsequent to stacking, singularized, trimmed, stacked and thereupon subdivided into stacks of superimposed books or brochures.Type: GrantFiled: December 16, 1993Date of Patent: May 23, 1995Assignee: E.C.H. Will GmbHInventors: Milan Andjelic, Peter Huser
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Patent number: 5397120Abstract: An apparatus for stacking successive rapidly advancing sheets of a stream of sheets has a platform which receives successive sheets and descends at the rate of accumulation of one or more stacks thereon. The sheets are delivered by one or more overhead belt conveyors in cooperation with one or more lower belt conveyors. The front end turn of the lower reach of each overhead conveyor is deflected around a small-diameter rigid rod immediately in front of a stop for the leaders of successive sheets to reduce the likelihood of buckling during stacking, and one or more downwardly sloping ramps are provided in front of the stop to deflect the leaders of successive sheets in a downward direction toward the leaders of the immediately preceding sheets in immediate or close proximity of the stop. The stop, the rod and the overhead conveyor or conveyors are adjustable in several directions to facilitate a change of setup for the stacking of longer, shorter, wider or narrower sheets.Type: GrantFiled: February 10, 1994Date of Patent: March 14, 1995Assignee: E.C.H. Will GmbHInventors: Friedrich Schulz, Wolfgang Faust, Norbert Rilitz, Arthur van Wijk
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Patent number: 5363730Abstract: Apparatus for manipulating streams of discrete sheets or webs of coherent sheets has a frame for a carriage which supports several tools for depression, alignment, orientation, stoppage, severing, flexing and/or other manipulation of sheets. At least some of the tools are adjustable in or counter to the direction of advancement of sheets and/or transversely of the direction of advancement of sheets in order to change the setup for the manipulation of different sheets or for a different manipulation of sheets. The operation of the parts which serve to adjust the tools can be automated, and such parts comprise a locating device which is movable longitudinally or transversely of the path for the sheets or web and can be coupled to two or more discrete distancing elements which are affixed to or form part of holders for the tools.Type: GrantFiled: July 29, 1992Date of Patent: November 15, 1994Assignee: E.C.H. Will GmbHInventor: Alfred Besemann
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Patent number: 5295775Abstract: Books or brochures are produced by transporting a series of elongated piles of superimposed paper sheets longitudinally through at least one stitching station where the sheets of each pile are mechanically connected to each other, thereupon sideways through a folding station where the piles are folded midway between their long sides to constitute folded piles each having a spine and two exposed outermost sheets, and thereupon longitudinally and sideways through a laminating station wherein the folded piles are provided with rigid or semirigid covers which are glued to the outer sides of their outermost sheets. The folded piles are then advanced lengthwise through a backstripping station, are compressed subsequent to stacking, singularized, trimmed, stacked and thereupon subdivided into stacks of superimposed books or brochures.Type: GrantFiled: December 10, 1992Date of Patent: March 22, 1994Assignee: E.C.H. Will GmbHInventors: Milan Andjelic, Jens Punner, Siegfried Lampe
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Patent number: 5233815Abstract: Apparatus for supplying stacks of paper sheets or the like to two or more packing machines has a platform for collection of successive rows of stacks, e.g., by arresting sheets forming part of discrete scalloped streams of sheets. Two or more discrete carriages for tongs are utilized to remove stacks in any desired grouping from the platform and to deliver them to two or more discrete removing units serving to transport the stacks to discrete packing machines. Each removing unit can employ a set of two or more aligned conveyors. Each carriage is or can be driven by a separate prime mover, each carriage can support two or more tongs, or each carriage can support a single tongs. All such undertakings contribute to versatility of the apparatus, namely the apparatus can be operated to ensure equal distribution of stacks among the removing units or one or more selected removing units can receive larger or smaller numbers of stacks than the other unit or units.Type: GrantFiled: May 20, 1992Date of Patent: August 10, 1993Assignee: E.C.H. Will GmbHInventors: Holger Kroger, Wolfram Wolf
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Patent number: 5162036Abstract: A continuous web of paper is subdivided into a series of discrete webs of finite length, and successive discrete webs of the series are provided with looped sections in zig-zag formation. Successive discrete webs of the series are moved forwardly and away from the next-following webs of the series while advancing toward a stacking station to thus establish between successive discrete webs gaps of predetermined width. The making of gaps involves advancing the discrete webs with the upper reaches of three parallel foraminous endless belt conveyors which attract the webs and move them toward the stacking station. The median belt conveyor is accelerated when it is approached by the trailing end of a discrete web and then advances the trailing end at a speed exceeding the speed of the other conveyors and of the leader of the next-following discrete web.Type: GrantFiled: March 4, 1991Date of Patent: November 10, 1992Assignee: E.C.H. Will GmbHInventors: Jurgen Peter, Karl-Heinz Schlottke
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Patent number: 5106069Abstract: Apparatus for positioning covers on top of stacks of paper sheets has a transporting unit which advances a series of successive stacks along a first horizontal path and discrete covers along a second horizontal path above and adjacent the first path. The covers are accelerated by advancing along a downwardly sloping portion of the second path immediately ahead of two vertical rotary members which temporarily intercept an oncoming cover until the corresponding stack catches up with the intercepted cover. The lower portion of the stack then moves the rotary members apart to enable the stack and the cover thereon to advance along the first path beyond the rotary members. Each rotary member is mounted on a spring-biased or otherwise biased lever which is pivotable about a vertical axis.Type: GrantFiled: October 31, 1990Date of Patent: April 21, 1992Assignee: E.C.H. Will GmbHInventors: Wolfram Wolf, Jurgen Peter
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Patent number: 5004094Abstract: Apparatus for advancing singularized stacks of paper sheets to a packing machine has an intermittently driven first conveyor which receives groups of abutting stacks at required or fixed intervals and overlaps in part with a continuously or intermittently driven gathering conveyor wherein successive groups are caused to form a continuous row. Successive foremost stacks of the row are taken over by a singularizing conveyor which moves the stacks apart and delivers them cyclically to the packing machine. The gathering conveyor has several sections which are disposed one behind the other in the direction of transport of stacks toward the singularizing conveyor and which can be lifted, individually or jointly, into engagement with stacks above them or lowered below the level of the first conveyor so that the latter can advance the stacks in a direction toward the singularizing conveyor.Type: GrantFiled: April 8, 1987Date of Patent: April 2, 1991Assignee: E.C.H. Will GmbHInventor: Eckhard Brandt