Abstract: A method of building a filled roll in the form of a load-carrying shaft and a stack of annular fillings sleeved upon the shaft and an end head sleeved upon the shaft at each opposite end of the stack, includes the steps: concentrating compressive forces on the end heads and the stack therebetween in the axial direction of the shaft and on axially aligned concentric loci defined on the outboard faces of the end heads and radially spaced from and circumadjacent the shaft periphery for precluding end head deformation under the applied compressive forces, the surface area of each end face inboard of the respective locus being equal to the surface area outboard thereof as figured from the area of the fillings of the stack, and with the inner end face of each end head having a negative taper at the interface of the end head and the respective end of the stack.

Abstract: The rear end of a rotary drying drum (1) is provided with a peripheral channel (10) in which dried material to be briquetted, such as green crops, wood flakes or peat, is accumulated and carried along. The bottom of the channel (10) is formed by the inner periphery of a ring of dies (18), in which the formation of briquettes takes place by means of a pressure roller (17) operating in the channel (10) and compressing the material against the frictional resistance in the dies.The material has previously been precompressed by an endless band (19) likewise operating in the channel (10), which band preferably runs at the same peripheral speed as the pressure roller (17) and the inner side of the die ring (18).

Abstract: This invention relates to a device for pressure fusing dry, powdered toner particles to a copy sheet in an electrostatic copier. The pressure fusing device comprises a rigid member against which fusing pressure can be applied and a plurality of independent, freely movable rollers for applying fusing pressure to a copy sheet. The plurality of rollers are contained in a tray-like housing which is vibrated so that the rollers bounce against a copy sheet and apply a fusing pressure to the copy sheet.

Abstract: A straw briquette press in form of a towable machine can in the field pick up straw or receive it from another traversing machine and press said straw to briquettes having a stable shape and density of about 1 g/cm.sup.3. The machine employs a high-speed finger press receiving the straw from a conventional feed device. The finger press consists of two rotatable blocks (1) which perform synchronized, oppositely directed rotary oscillations at great speeds. The two blocks (1) are provided with fingers (1) which grip straw during the first phase of a working stroke and then engage each other and perform a massive piston-like movement during the last phase of the working stroke when the straw is subjected to high-compression. During the return stroke the fingers are withdrawn in the same opposite paths. The two synchronized and oppositely directed movements provide a vibration-free operation.

Abstract: In a supercalender consisting of a metal roll and an elastic roll and smoothing a web by nipping the web between the metal roll and the elastic roll, the elastic roll satisfies the condition of:Hs(D).gtoreq.-0.1T+85under the condition of 50 to 500 kg/cm of the linear pressure between the metal roll and the elastic roll, where Hs(D) is Shore hardness D-scale of the elastic roll and T is the working temperature (.degree.C.) of the elastic roller that satisfies the condition of 60.gtoreq.T.gtoreq.120.

Abstract: Surfaces of thermally conductive substrates are covered with thermoplastic polymers, particularly certain fluorocarbon polymers by bonding said polymeric materials directly to surfaces of said substrates. Adhesives, etchants, or the like are not used as bonding elements. The process involves treating the surfaces to make them wettable by water and then cleaning the surfaces, if necessary, followed by heating the substrate to a temperature at which the polymer melts, gels or softens (herein called the softening point), then placing the polymeric material into contact with the prepared surfaces and applying pressure on the polymeric material to force it into fusing and bonding contact with the heated surface and then cooling the substrate to a temperature below the softening point of the polymer. The products produced are preferably rolls. In their covered form as produced by this invention they are useful as processing rolls in office copier's fusing systems, rolls used in food cooking processes, and the like.

Abstract: An electrophotographic copier machine with a roll fuser where one of the mating rolls is comprised of a thin outer shell which takes a variable taper so that a concave shape is produced under high humidity conditions and a relatively straight roller is produced under low humidity conditions. Means for changing the support at the roll ends is provided to produce the variable taper. End plugs can be moved axially inward at high humidity to provide support for the end portions of the normally concave roll and can be moved axially outwardly under low humidity such that no support is provided until the roll ends are flattened under the pressure of a mating roll.

Abstract: This disclosure relates to a rib-rolling mechanism for processing tobacco ribs and includes a pair of relatively rotatable rollers having peripheral surfaces defining therebetween a throat through which it is adapted to pass tobacco, the rollers having shafts, the shafts of the first of the rollers being journaled for rotation in fixed bearings and the shafts of the second of the rollers being journaled for rotation in movable bearings, a device for resiliently urging the second roller toward the first roller, the latter device including a rod connected to each of the movable bearings, a sleeve in external telescopic relationship to each of the rods, springs coupled between each of the sleeves and the second roller for urging the latter toward the first roller, and elements for axially shifting the rods to vary the force exerted by the springs in a direction to urge the second roller toward the first roller.

Abstract: Roll fuser apparatus for fixing toner images to copy sheets by the application of heat and pressure. The apparatus is characterized by the provision of a backup roll which can be quickly removed from the apparatus with a minimum of handling. To this end the backup roll is supported in the apparatus by a pair of frame members which are bolted to a backup roll support member which forms an integral part of the apparatus. A pair of hook-like members support the backup roll after the bolts have been removed; therefore, the backup roll need not be handled prior to the removal of the bolts and then it can be simply lifted out of the apparatus. Replacement is likewise simple.

Abstract: A composite metallic roll or other member comprising a body member of a base metal, a porous plasma flame spray plate of a nickel chromium alloy, and a continuous film of a Teflon deposited over said plate and impregnating the same for gradual exposure over a predetermined life. The corresponding method comprises the steps of applying the plasma flame spray plate with a porous finish and a subsequent application of a thin uniform deposit of a Teflon (tetraflouroethylene). The Teflon is thereupon heated to and is above its fusion temperature whereby to provide an impregnate film for gradual exposure over a predetermined life.