Abstract: A through-air dryer is disclosed. The through-air dryer includes a cylindrical deck made from a plurality of deck plates that support a throughdrying fabric. The deck plates are supported by opposing hubs. Each of the hubs is in communication with a bearing that is mounted to a stationary shaft for allowing the cylindrical deck and the hubs to rotate. The bearings are positioned so as to create a through-air dryer structure that remains stable during operation and allows for easy calculation of loads on the dryer.

Abstract: The invention relates to a drying cylinder which is used to dry a paper, cardboard, tissue or other web of fibrous material in a machine for the production and/or for the transformation thereof. The drying cylinder includes a support body and an external cover layer which is heated by a hot fluid. The thermal flow passing through the external cover layer is increased such that at least one cavity is provided between the support body and the external cover layer through which the fluid flows. The external cover layer is predominately so thin that the ratio formed by the thermal conductivity of the material and the thickness of the external cover layer is greater than a threshold value of 3.2 kW/m2K for steel, 30 kW/m2K for aluminum, 18 kW/m2K for bronze alloys, 3.4 kW/m2K for copper and 6.1 kW/m2K for magnesium.

Abstract: A wet end of a paper or board machine has at least one vertical, self-supporting installation module (10a, 10b) to be positioned into connection with the machine which module is supported from its lower end by foundation structures of the machine construction and which extends at least to the height of a second maintenance platform (50b) of the machine, which installation module (10) includes at least valves (40) and pipes (30) related to the hydraulic and/or pneumatic actuators of the machine.

Abstract: A through-air dryer is disclosed. The through-air dryer includes a cylindrical deck made from a plurality of deck plates that support a throughdrying fabric. The deck plates are supported by opposing hubs. Each of the hubs is in communication with a bearing that is mounted to a stationary shaft for allowing the cylindrical deck and the hubs to rotate. The bearings are positioned so as to create a through-air dryer structure that remains stable during operation and allows for easy calculation of loads on the dryer.

Abstract: A through-air dryer is disclosed. The through-air dryer includes a cylindrical deck made from a plurality of deck plates that support a throughdrying fabric. The deck plates are supported by opposing hubs. Each of the hubs is in communication with the bearing that is mounted to a stationary shaft for allowing the cylindrical deck and the hubs to rotate. The bearings are positioned so as to create a through-air dryer structure that remains stable during operation and allows for easy calculation of loads on the dryer.

Abstract: A clothes dryer has a first four pole motor that rotates a rotatable drum in the dryer through a transmission system. The clothes dryer has a second two pole self speed regulated induction motor connected to a blower fan in the air passageway of the dryer. The second motor rotates the fan to draw air out of the dryer and exhaust the air to an external vent. The second motor provides a long venting application and has a slip characteristic whereby the speed of the second motor automatically varies directly proportional to air flow restrictions associated with the external vent.

Abstract: A papermaking belt for use in making paper. The papermaking belt may be used in conjunction with a single-wire draw or twin-wire draw of a papermaking machine. The papermaking belt includes a woven reinforcing element and a patterned framework. The framework defines either or both faces of the papermaking belt. The pattern of the framework is independent of the weave of the reinforcing element.

Abstract: A drier unit (10) for drying printed products has a plurality of drier rails (12), which comprise in each case a supporting body (14) manufactured from a hollow section (16). The clear outer contour of the cross-sectional area of the supporting bodies (14) is a rectangle. The drier rails (12) have in each case two resistance heating units (60) and additionally carry an infrared radiator (164).

Abstract: A drum made from a wire mesh is axially rotatable whereby wet clothes in the drum tumble when the drum is rotated. A motor is mounted on a platform beneath the drum. The motor has fan blades mounted on its shaft that provide a flow of air to the drum when the shaft rotates. A friction coupling of the drum to the motor is used to rotate the drum. When the shaft does not rotate, power is provided to the motor through two capacitors that are in parallel. When the motor starts, a sail switch causes a break in an ohmic connection between one of the capacitors and the motor.

Abstract: An apparatus for processing a continuous web having a first side and a second side includes a plurality of rollers are arranged for cooperative rotation. The plurality of rollers are positioned to define a corresponding plurality of nips. The continuous web is processed through at least two of the plurality of nips. At least a first roller of the plurality of rollers has at least one void formed in the cylindrical middle surface. First and second sealing panels engage first and second circular ends of each of the plurality of rollers and define a chamber. A first pressure source is fluidly coupled to the chamber to pressurize the chamber. A membrane is positioned adjacent the first side of the continuous web to separate the continuous web from direct communication with the chamber.

Abstract: An apparatus for processing a continuous web includes a plurality of rollers arranged for cooperative rotation. Each of the plurality of rollers have a first circular end surface, a second circular end surface and a cylindrical middle surface. The plurality of rollers define a corresponding plurality of nips. First and second sealing panels are provided for engaging the first and second circular ends of each of the plurality of rollers. The first and second sealing panels and the plurality of rollers define a chamber. The first and second sealing panels are structured and adapted to conform generally to the shape of the first and second circular end surfaces, respectively, of the plurality of rollers. End panel sealing of the chamber is provided by mechanical sealing, fluid sealing, or a combination thereof.

Abstract: Steam-heated roll apparatus and process. The steam-heated roll may include a roll, a heating chamber arrangement within the roll, a feeding connection arrangement coupled to the heating chamber arrangement that is adapted for charging the heating chamber arrangement with steam, and a pump arrangement for pumping steam condensate out of the roll. The process includes charging the heating chamber with steam through the feed connection arrangement, and pumping steam condensate from an inside of the roll.

Abstract: Apparatus for controlling widthwise contraction of a conveyed web has opposing first web carrier belts and opposing second web carrier belts forming a generally serpentine transport path for supporting opposite lateral edges of the conveyed web.

Abstract: A Yankee hood is disclosed for use in drying wet paper webs. The Yankee will provide a manufacturer to operate at supply temperatures above 1000.degree. F. at lower total energy costs and at increased production. All major components, supply fans, flow concentrator, air flow equalization plenum and gas burner are consolidated and are mounted directly on the device to eliminate the need for additional space requirements. The hood assembly includes an internal high impingement air system which is supported on a floating structural support member. The nozzle impingement system which incorporates a plurality of nozzle boxes will cover approximately a 240.degree. wrap of a typical Yankee cylinder which will be decoupled from its main support end plate members to allow for increases in cross-machine expansion. The support structure for the externally located direct drive motor is designed to eliminate hood vibrations and operate above the natural building frequency.

Abstract: A machine for producing a sheet, e.g., paper or cardboard, in which the machine may include a plurality of rolls having a bearing pin located at each end and a bearing device retaining each bearing pin. The bearing device may be utilized to guide the bearing pin on all sides, enabling a base of the bearing device to be arbitrary positioned at an angle 0.degree.<.alpha.<90.degree. with respect to a horizontal reference, e.g., the ground or a base surface. The plurality of rolls may include dryer cylinders and/or sheet guide rolls.

Abstract: A process and device for producing a pulp web utilizes several independently driven aggregates (i.e., discrete groups) to attain a median web dry content of, e.g., 60%. The number of driven aggregates may depend upon an initial wet strength of the wet pulp web. The relationship is such that when the initial wet strength is relatively high, the number of drier groups is small and when the initial wet strength is relatively low, the number of drier groups is large. However, each drier group includes only a few drier cylinders. The first drier group may include either one or two cylinders, and each subsequent drier group may include at least one drier cylinder more than the adjacent upstream drier group.

Abstract: A machine is proposed for the production of a material sheet, in particular a paper or cardboard sheet, with a dryer section which exhibits at least one double-row dryer group consisting of two rows of heated dryer cylinders, each of which has been assigned a transport belt circulating in a meandering fashion around the dryer cylinders of one row and the deflection rolls assigned to the dryer cylinders, thereby pressing the material sheet against the surface of the dryer cylinders, and having a drive mechanism consisting of at least one motor assigned to each row of dryer cylinders of a double-row dryer group, which causes a rotation of the dryer cylinders and deflection rolls as well as a circulation of the transport belts of the dryer section, in which the drive mechanism is designed such that the rotational speed of the two rows of dryer cylinders within the double-row dryer group can be regulated independently of one another.

Abstract: A system for the connection of an annular tire (1) to a rotary drum (10) comprising blocks (2a, 2b) bearing upon the side faces of the tire and held in place by retaining elements fastened to the drum, said blocks comprising a portion (8) inserted underneath the tire, the blocks being connected in pairs by clamping means (13) independent of the tire and extending through the block portions inserted under the tire, the clamping control means (4) of the successive pairs of blocks being arranged alternately on either side of the tire.

Abstract: A paper making machine for the production of a fiber material web includes a drying cylinder, first and second bearing assemblies, a fixed rigid support, a fixed structure and a flexible device. The drying cylinder has two longitudinal ends, a longitudinal axis and at least one fluid passage for receiving heated fluid. Each bearing assembly is attached to and rotatably carries a respective longitudinal end of the drying cylinder. The fixed rigid support substantially immovably supports the second bearing assembly. The flexible device allows for longitudinal thermal expansion of the drying cylinder in a direction substantially parallel to the longitudinal axis of the drying cylinder. The flexible device carries the first bearing assembly and interconnects the first bearing assembly to the fixed structure.

Abstract: The dryer section of a paper-making machine is fabricated as a number of subsections arranged end-to-end throughout the length, the subsections each including a pair of prefabricated large vertical side frames which provide support for the dryer cans, felt rolls, etc. The subsections can be individually fabricated and do not require precise levelling relative to each other resulting in great improvements in the speed and cost of installation of the dryer section.

Abstract: The invention is directed to a dryer section for an apparatus to produce a continuous material layer, such as paper, carton or cardboard. At least one dryer group has a plurality of dryer cylinders and guiding rollers. The dryer cylinders and guiding rollers carry the material layer along a meandering path, with each dryer cylinder and each guiding roller having a first side disposed on a same side of the dryer section. At least one mechanical drive mechanism is provided, with each drive mechanism being coupled with the first side of a dryer cylinder and/or guiding roller. A plurality of supply tubes are each connected with the first side of a corresponding dryer cylinder and/or guiding roller.

Abstract: The invention is directed to a drying section of a paper machine for drying a fiber web. The drying section includes a plurality of drying groups, with each drying group having a plurality of heatable drying cylinders and a continuous hold-down belt. The hold-down belt has a longitudinal tension which biases the fiber web against the drying cylinders. The plurality of drying groups include at least one high-pressure group comprising a single-row drying group having one row of drying cylinders and one row of corresponding deflection rolls. The high-pressure group has a corresponding hold-down belt with a longitudinal tension which is at least 10 kN/m.

Abstract: A paper making machine comprises a press followed by an adjoining drying section having a plurality of dryer groups. Each dryer group comprises only one row of dryer cylinders and one row of suction rolls then therebetween. The press section in each of the dryer groups has a respective variable web speed drive. A speed control device controls the drive such that a positive difference in speed is always present between the first dryer group and the press and also between the second dryer group and the first dryer group. Open draws may be defined between at least some of the dryer groups.

Abstract: A rotary drying drum for a moving web includes a stationary heater drum positioned coaxially within the drying drum such that the drying drum rotates around the heater drum. The heater drum may be supplied with steam via a hollow drying drum shaft without the use of high pressure steam joints. Heat from the interior heater drum is transferred to the rotary drying drum wall by a thin layer of suitable heat exchange fluid confined to the annular space between the coaxial drum walls. A low melting point bismuth/lead/tin alloy is the preferred heat exchange fluid.

Abstract: A chill roll assembly is disclosed having plural harmonic drives for rotationally driving corresponding plural sets of chill rolls. The harmonic drives are independently controllable to support either synchronous or asynchronous chill roll assemble operation. Synchronous mode facilitates the processing through the chill roll assembly of a single web. Asynchronous mode, on the other hand, facilitates the processing of multiple webs through the chill roll assembly.

Abstract: A device for drying a running web, particularly a drying section of a paper manufacturing or processing machine. In the drying section, at least one drying cylinder, which can be heated and comes into contact with the web, is provided in each of successive cylinder groups. Each cylinder group has its own drive. At least one two-felt cylinder group is provided in which, the web runs in serpentine fashion alternately over upper cylinders, felted above, and lower cylinders, felted below. At least one additional cylinder group, provided with its own additional drive, is provided adjacent the two-felt cylinder group. Between the two-felt cylinder group and the additional cylinder group there is a free web path at which a tail-cutter is arranged.

Abstract: A process for drying a paper web and a drying section of a paper making machine. The drying section includes at least one drying group comprised of a plurality of drying cylinders, each at least partially wrapped by a web to be dried. The drying cylinders having peripheral surfaces heated for drying the web moving therepast. The peripheral surfaces of the drying cylinders in the drying groups are rotated at the velocity of the web along the web path. At least one of the drying cylinders in at least one drying group is driven to rotate at a speed that is different than the speed of the web moving past the at least one cylinder. The at least one cylinder may be selectively driven to rotate faster or slower than the speed of the web moving therepast, which applies more heat to the paper web. The invention is adaptable for a single tier drying section and/or for a double tier drying sections or for other drying section arrangements.

Abstract: A device for transferring a paper web from the press section into the dry end of a paper making machine. The web contacts a rotatable press surface, e.g. on a press roll, and travels with the press surface through a press nip against a backing roll, and thereafter travels with the press surface to a web removal place. The web is transferred by a suction device across an adjustable gap to a porous transport belt which transports the web toward a first dryer group. The first dryer group has a number of drying cylinders and a web support belt that transfers the web from drying cylinder to drying cylinder. Either a suction device or another intermediate transfer roll transfers the web from the transport belt to the support belt for the dryer group.

Abstract: A paper making machine comprises a press followed by an adjoining dry end having a plurality of dryer groups I to VI. Each dryer group comprises only one row of dryer cylinders and one row of reversal suction rolls which alternate with the dryer cylinders, and a respective endless support belt passing around the cylinders and rolls of each group along a guided meander path. The press and each of the dryer groups has a respective variable web speed drive. A speed control device controls the drives such that a positive difference in speed is present between the first dryer group and the press and a negative difference in speed is present between the last two dryer groups. Separation places may be defined between at least some of the dryer groups. Some of the separation places are closed providing support for the web passing between groups, and others are open providing an unsupported open draw for the web.

Abstract: A plant (10) for the drying of wood panels and in particular veneer comprises two conveyor belts (12,13) overlying substantially in contact along a sinuous path between guide rollers (16) inside a drying chamber (11). The wood panels are conveyed between the overlying belts (12,13) from an input end to an output end of the chamber. Outside the path in mutual contact the two belts (12,13) wind on powered running rollers (17-20), the rollers (16) inside the sinuous path in contact being idling rollers. In particular, the powered rollers (17-20) are transmission rollers at one end of the sinuous path in mutual contact with the belts (12,13).

Abstract: There is disclosed herein a drive system and a coupling system for each roller in a roller hearth kiln. The drive system is modular and encased and includes a plurality of aligned drive worms that engage driven gears that in turn rotate a drive shaft. The casing defines an oil sump which lubricates and cools the worm and gear and permits higher precision elements to be used. A cup-like ball-bearing style coupling system is used to drivingly couple the drive shaft to the roller.

Abstract: A web drying unit, e.g. for a paper making machine, has several drying cylinders, over which a web to be dried can pass, and also several guide rolls for at least one endless supporting belt for pressing the web to be dried against the drying cylinders. Only some of the drying cylinders are provided with a drive gear connected by gears to a drive pinion, the gears being disposed inside a gear housing, which is also used to house cylinder journal pins for the drive motor. At least one of the guide rolls is also provided with a drive gear, which is connected to a drive gear of the drying cylinder. A gear housing also contains the drive gear of the guide roller and its bearing on the drive side. Only one common drive is needed for the unit, and uniform ventilation conditions are enabled to occur over the cross-direction of the paper web. To ensure no obstruction to maintenance personnel on the drive side of the unit, the drive pinion is disposed in the upper region of the gear housing.

Abstract: A drive for the guide roll of a drying felt or wire in the drying group of a paper machine, or the like. A gear transmission drives a selected one of the paper web guide rolls, which may be a drying cylinder, in a first group of rolls. The felt or wire is wrapped around a second group of rolls comprising felt or wire guide rolls. The one felt or wire guide roll located nearest the gear transmission is connected to the shaft of a drive gear of the gear transmission via a belt drive connection. Thus, rotation of the drive gear of the gear transmission via the gear transmission drives the one selected driven roll of the first group, and via the belt drive connection drives the driven felt or wire guide roll.

Abstract: A transfer apparatus is disclosed for transferring a web from a press section to a dryer section. The apparatus includes a plurality of rotatable rolls which are disposed between the press section and the dryer section. A transfer felt is movably supported by the plurality of rolls for transporting the web from the press section towards the dryer section. The plurality of rolls includes a rotatable guide roll which is disposed adjacent to the press section for guiding the web from the press section towards the dryer section. A rotatable turning roll cooperates with the dryer section such that the transfer felt disposed between the guide roll and the turning roll defines a transfer section. The transfer section supports the web along the entire length of the transfer section from the guide roll to the turning roll.

Abstract: A method of forming a vacuum bonded non-woven batt includes the steps of blending at least first and second staple polymer fiber constituents. One of the fiber constituents has a relatively low predetermined melting temperature and the other a relatively high melting temperature. The intermixture is formed either into a relatively thick single layer web or a relatively thin web which is then formed into a relatively thick multilayer web structure. The web structure is positioned on a rotating, air permeable drum and a vacuum is used to substantially reduce the thickness and increase the density of the web structure. The web structure is heated to a temperature at or above the relatively low melting temperature of the first fiber constituent and below the melting temperature of the second fiber constituent while under vacuum to release the plastic memory of the fibers of the first fiber constituent in their compressed configuration.

Abstract: The invention relates to a tube mill in which the cylinder of the drying chamber and the transition wall which it supports are divided centrally or a number of times in the axial direction so that this cylinder and the transition wall can be replaced without the grinding elements having to be removed from the grinding chamber.

Abstract: A drive arrangement for cylinders, such as drying cylinders, in a paper machine of the type which comprises a number of cogwheels, such as gears, which intermesh to constitute a gear transmission. The cogwheels of the gear transmission are fitted within a casing situated on the side of the drying section of the paper machine, and in accordance with the invention, both the cogwheel shafts as well as the axle journal of the drying cylinder to be driven are rotatably mounted or journaled to the same casing. The casing in which the cogwheels are fitted is substantially trapezoidal in shape, preferably a "regular" trapezoid (the non-parallel sides are substantially equal in length). Several such trapezoidally-shaped casings may be co-operatively mounted in the drying section to form a composite drive arrangement for the cylinders.

Abstract: A rotary kiln construction of the type where a cylindrical kiln is supported for rotation on an annular bearing ring wherein the ring has an inner circumference larger than the outer circumference of the kiln cylinder and a plurality of spacing plates are arranged around the circumference of the cylinder to support the bearing ring concentrically with the cylinder, supporting assemblies for the spacing plates including a support element welded on the cylinder with abutment strips preventing axial displacement of the bearing ring and angle lugs preventing axial displacement of the spacing plates with the support assemblies located axially opposite each other so as to hold the plates between them and permit withdrawal of the plates from either axial direction.

Abstract: A paper making machine dryer section and a method of operating and controlling the same, wherein the dryer rolls are freely rotatable and are rotatably actuated entirely by a dryer felt drive. In a preferred arrangement, there are two tiers of cooperatively related dryer rolls over which a paper web to be dried is run in a sinuous path successively around the dryer rolls of the tiers. Each of the tiers has a respective dryer felt running over and guiding and holding the web onto the dryer roll peripheral surfaces in the associated tier. The dryer felts run under tension over guide rollers. In each tier at least one of the guide rollers is motor driven for thereby driving the associated dryer felt. While the felt of each tier effects synchronized running of all of the dryer rolls in that tier, synchronization of the motors of the tiers one with the other is effected by speed regulators connected with a frequency reference and speed control.

Abstract: A plurality of electrical driving motors for the rolls in cooperative upper and lower tiers of a paper machine dryer section are coupled with respective dryer rolls in what may be a one-motor-to-one-roll relation, the rolls of each tier being wrapped and synchronized by a dryer felt for that tier. One of the motors of each tier is synchronized with one of the motors of the other tier for synchronizing the running speed of each roll tier with respect to the other roll tier.

Abstract: A dryer section of a paper machine includes a frame having vertical frame members and upper side members spaced to receive endless or looped wires therebetween for supporting the web, with one of the upper side members having a removable block portion near each end thereof and a cantilever support attached to a second upper member. A plurality of drums for drying the web and rolls for supporting and directing the wires include a plurality of drum pairs, each pair rotatably supported by a pivotal support assembly detachably connected to the upper frame members and having a removable block portion along one side thereof between the drums of the pair mounted thereto. The pivotal support assemblies may be detached from the upper frame members and pivoted downwardly until the drum pairs are supported by a lower cantilever sub-structure disposed near the bottom of the drying section, whereupon after removal of all removable block portions, a clear path for replacement of the wires is provided.

Abstract: A rotary drum comprising a bearing ring loosely arranged on the drum shell and spacer plates arranged between the ring and the shell, a pair of elements for axially holding a spacer plate in position being provided at one end of each spacer plate, one retaining element being arranged on the drum shell and the other retaining element being arranged on the spacer plate. This construction enables the spacer plates to be readily replaced and the radial clearance to be changed without any need to loosen a retaining element fixed on the drum shell.

Abstract: A rotary drum for the heat treatment of bulk goods, with the drum being mounted by means of thrust rings. Wedges are arranged on the outer periphery of the shell of the rotary drum, the wedges being disposed opposite to one another at a spacing corresponding approximately to the width of the thrust ring. Those inclined surfaces of the wedges which inclined surfaces face toward each other cooperate with insert pieces, the insert pieces being fastened on the thrust ring and being provided with counterwedge surfaces. The inclined surfaces of the wedges and the counterwedge surfaces are arranged on the outer periphery of the shell of the rotary drum successively flip symmetrically.

Abstract: The invention relates to installations for the treatment in a gaseous medium of a strip material passing over rollers (6).Each roller (6) is driven in rotation by an endless belt (10) serving also for the embarkment of the strip, this endless belt passing over drive pulleys (15) which drive the corresponding roller (6) by coupling means (101) ensuring a "free wheel" function and a "coupler" function.The installation is useful for the heat treatment, especially the drying of a strip material.

Abstract: A conveyor system of the type which may be utilized with an apparatus comprising a plurality of treatment areas such as an oven system containing a proofer for conditioning dough and a baking oven downstream of the proofer for baking the conditioned dough. A plurality of carrying pans are attached to a conveyor that is continuously directed through the proofer and baking oven in a serpentine path. The residence time for a pan within either the proofer or the baking oven can be varied by a conveyor length adjustment system that functions to provide changes in length of the conveyor in the proofer and in the baking oven. The conveyor system comprises movable sprocket assemblies positioned within the proofer and within the oven. The sprocket assemblies are movable in equal and opposite directions for respective length adjustment of the conveyor within the proofer and the oven.

Abstract: A paper machine drying section has a pair of staggered rows of rotary dryer cylinders which include a first group of cylinders of both rows which form an initial part of the drying section where a web is initially received from a press section. A first endless fabric which forms a closed loop is guided around the above group of cylinders in a manner situating the cylinders of one of the rows within the loop to form inside cylinders therefrom and the cylinders of the other of the rows outside of the loop to form outside cylinders therefrom, this first endless fabric transporting a web which is to be dried around the cylinders of the above group while situating the web between the first endless fabric and the outside cylinders and the first endless fabric itself between the inside cylinders and the web.

Abstract: A dryer section of a web making or web processing machine comprises a plurality of drying cylinders disposed in spaced relationship so as to provide drying surfaces for alternately drying both sides of a web. The section comprises one or more sets of paired drying cylinders, each set being driven by a single drive coupled to each cylinder in the set by a gear reduction unit supported by the dryer journals. The gear reduction unit is so constructed and arranged as to accommodate a substantial range of spacings of the set of cylinders which it drives, and also a substantial amount of relative deflection of the journals.

Abstract: A drying apparatus suitable for use in the drying of paper web and which comprises a housing, rollers located within the housing for supporting the paper web which is transported through the housing, and means for applying heat to the rollers. The heat is applied directly to the rollers' periphery and at such a level as to cause vaporization of moisture contained within the web, whereby a vapor layer is created between the web and the portion of the rollers' periphery which would otherwise be contacted at any given time by the web.

Abstract: The present drying drum includes a roller supported drum jacket which is connected at one end thereof to a drive shaft by means of radially extending arms whereby the drive shaft extends coaxially with the rotational axis of the drum jacket. The drive means proper are guided relative to said drive shaft by guide means forming part of the drive shaft itself or either by a bearing surface forming part of a spur gear connected to the drive shaft. The drive means are further connected through a guide rod with an abutment means for taking up the drive reaction.

Abstract: The angular position of a wrap control roll about a paper web preheating roll is remotely adjusted to any one of a plurality of predetermined set positions by an index control over the adjustment power train. The index conrol comprises a remote positioned, console mounted rotary switch having contact positions corresponding to the predetermined wrap control roll set positions. Cooperative switches mounted in an adjustment drive follower mechanism continue the circuit continuity to a solenoid activated drive motor reversing switch. A breaker unit within the follower mechanism is directly driven by the adjustment power train to open the motor switch when the breaker unit is correctly aligned with the desired set position.