Abstract: A vacuum/blowing sheave on the end of the lower calender roll of a papermaking machine threads a tissue web tail from a Yankee dryer to a take-up reel through the calender. The sheave is positioned adjacent to the outlet of the threader tube from the Yankee dryer, where the vacuum portion of the sheave picks up the tail and transports it towards the take-up reel. Upon transiting the closed nip of the calender, the tail is blown by a short blowing section on the sheave into the tube threader which leads to the take-up reel.
Abstract: This invention provides a porous film useful as a fresh fruit and vegetable wrapping material which is obtained by forming a large number of small recesses in an organic film and which does not allow permeation of water, bacteria, and viruses, but allows permeation of a gas, e.g., the oxygen gas or the carbon dioxide gas, and water vapor. The porous film includes the organic film and the large number of recesses formed in the organic film and having an average opening width of 0.5 .mu.m to 300 .mu.m and inner surfaces exhibiting affinity.
Abstract: The present invention provides a method of forming an abrasive article comprising the steps of providing an embossed carrier web having a plurality of recesses formed in the front surface thereof; filling the recesses with an abrasive composite slurry that includes a plurality of abrasive grains dispersed in a hardenable binder precursor, hardening the binder precursor to form individual abrasive composite members, laminating a backing sheet to the front surface of the embossed carrier web. The resulting article includes a plurality of precisely spaced abrasive composite members, positioned in a predetermined pattern and orientation on a backing sheet.
January 13, 1992
Date of Patent:
August 1, 1995
Minnesota Mining and Manufacturing Company
Abstract: A bonding device and bonding process for a surface skin member of a vehicle interior component which can reliably fold back and secure a peripheral part of a surface skin member onto the reverse surface of a core member without involving any positional deviation between the core member and the surface skin member even when the width of the peripheral part is small. A block of elastic material is used for a lower die for mounting a surface skin member in a bonding station, and slide bars are arranged around the lower die in a peripheral part folding back station disposed adjacent to the bonding station for provisionally shaping the peripheral part of the surface skin member. Further, vertically moveable bars are arranged around an upper die for mounting the core member thereon for pressing the peripheral part of the surface skin member which has been provisionally shaped against the reverse surface of the core member.
Abstract: A round duct and apparatus and method of forming the duct in which the side edges of the duct are formed to interlock when the duct is folded and the flap is secured in place to provide support when the finishing duct tape is applied to seal the flap and complete the joint.
Abstract: An apparatus for effecting synchronous, in-line placement of pads of material, such as a highly absorbent compressed composite laminate, includes a supply reel for supplying a continuous web of material. The web of material is guided to a pair of pull rolls which effect movement of the web at a first velocity V.sub.1. A cutting mechanism, preferably comprising cooperating knife and anvil rolls, cuts individual discrete pads of the material for presentation to an associated vacuum transfer drum. The vacuum transfer drum includes a peripheral surface operated at a second velocity V.sub.2 equal to or greater than the first velocity V.sub.1, with the velocity V.sub.2 equal to the linear speed of movement of an associated continuous substrate, such as comprising air laid comminuted wood pulp. The discrete pads of material are thereby transferred onto the substrate at a relative spacing S between adjacent ones of the discrete pads, which spacing equals L(V.sub.2 -V.sub.1)-L.
Abstract: An improved method for impregnating a tubular lining material with a hardenable liquid resin employed in a pipe repair operation by lining the pipe internally with the lining material; the method comprises (a) supplying about the same amounts of the same hardenable liquid resin to two mixing baths, (b) mixing the hardenable liquid resin with an agent to retard hardening and another agent selected from catalyst to facilitate hardening and hardener in one of the mixing baths, and, at the same time, mixing the hardenable liquid resin with a hardening accelerator in another one of the mixing baths, (c) supplying predetermined amounts of these mixtures to a static mixer from the respective mixing baths, (d) mixing these mixtures together in the static mixer to obtain a final mixture of hardenable resin, (e) supplying the final mixture to the tubular lining material, and (f) impregnating the tubular lining material with the final mixture.
Abstract: The invention relates to a device and a method for manufacturing a mould for a disc-shaped registration carrier, said device being provided with a station for applying a photosensitive layer, such as a photoresist layer, to a substrate, with a station for exposing said photosensitive layer in accordance with the registration data to be stored, with a station for developing the photosensitive layer and metallizing the side of the substrate carrying the developed photoresist layer, and with a station for applying a metal coating, wherein the various stations are accommodated in a housing and means for receiving the substrates are provided in the various stations, whilst a transport mechanism disposed within the housing is provided with at least one transport means for gripping a substrate, which transport means is movable in a horizontal plane in two directions including an angle with each other, and which is also capable of moving upward and downward within the housing.
October 20, 1993
Date of Patent:
April 4, 1995
OD & ME B.V.
Lodewijk J. M. Beckers, Christopher Jayne, Joseph P. De Nijs, Marcellus A. C. M. Geerts
Abstract: A method for making machine readable bar code markings (20) on glassware (10) is disclosed. A ceramic film (16B) first has bar code markings (20) placed thereon. The ceramic film with the bar code markings (20) is placed on the outer surface (14) of the glassware (10). The ceramic film (16) and glassware (10) are heated or fired for a predetermined time period at a temperature over 1100.degree. F. adequate to effect fusing of the film (16B) onto the glassware (10) while providing a fused layer (18) therebetween.
Abstract: A portable, compact, light weight, machine for gluing a flexible veneer strip in a groove of a work piece. The gluing machine includes an aluminum housing having a chamber in which an electrical heating tape obtains. The housing is mounted on a base of wood though separated therefrom by a commercially-available BACALITE heat insulating strip. The user is protected from the heated housing by side strips of BACALITE. A slot in the bottom of the housing mounts a readily interchangeable, high-heat transfer bar whose free edge has a surface complementary to that of the groove in which a veeneer is to be fixed. Special side bars are employed for grooves have greater internal dimensions than their openings. A controller also mounted on the base may be utilized to regulate the heating tape.
Abstract: The present invention relates to a joining method, a joining apparatus and a joining agent capable of joining two bodies to be jointed in a large size or in a complicated shape in a good joining condition. Specially, the present invention is to provide an improvement in a control of the current supplying method applicable for the electrically heating of the ceramic bodies or a joining agent in an electric conduction (a elecrode switching type due to a plurality of fixed electrodes and a switching control type between two kinds of the electric power sources), a control method of a auxiliary heating, a control of the holding apparatus (the control by the free thermal expansion at the pre-heating, a adaption of a balance mechanism and a measurement of the displacement), the adjustment of the shape at the butted portion (improvement of the pipe joint structure) and a joining agent superior in the joining strength.
Abstract: A permanent marking article for use with an elongate object, consisting of a strip of transparent polymeric film having an upper and a lower surface, at least a portion of the upper surface being imprintable, the polymeric film being fusible to itself with the passage of time, and remaining transparent even after fusion such that any marking placed on any portion of the article remains readable even if covered by one or more overwrapping portions of the strip.
August 4, 1992
Date of Patent:
November 22, 1994
Minnesota Mining and Manufacturing Company
Abstract: A device for applying a strip of sealant from a roll to a surface comprises a shaft and a roller. The shaft has an end which is configured to be grasped by a user for pushing the device along a surface such as a roof panel, and the roller is rotatably supported on the other end of the shaft. The roll of sealant is supported on the shaft so as to enable the unwinding of the strip from the roll in response to a pulling force exerted on the free end of the strip. To use the device, the free end of the strip is first trained over the roller onto the surface with the strip between the roller and the surface. Thereafter, as the device is urged along the surface, the strip is unwound from the roll and pressed into engagement with the roof panel beneath the roller.
Abstract: A novel industrial pallet for use in supporting and moving goods, engageable by conventional forklift trucks, comprises an upper platform, one or more lower planar reinforcements and cylindrical spacers therebetween, defining a space suitable for access of the forks of a forklift truck from all sides. Some or all of the components are made of thermoplastic-type materials, so that the structures can be economically and simply made by friction welding (e.g. spin/vibration welding). Alternatively, a thermoplastic material may be positioned between components, to act as a thermoplastic glue of respective parts on friction welding.
Abstract: A process and apparatus for the hermetic adhesive bonding of plastic casing parts of a battery or of a galvanic cell. The casing comprises a plastic casing container and a top or bottom of the same type of plastic, preferably of polyamide, which are adhesively bonded to each other by means of a pair of joining surfaces. For adhesive bonding, the joining surface of one of the two parts is wetted at specific locations with a solvent dissolving the plastic, preferably with formic acid, over a time period of 5 to 7 seconds. The joining surface is aired at room temperature in still air over a time period of about 15 to 25 seconds, and the casing parts are then joined to each other and pressed together with pressure maintained over a time period of about to 5 to 10 minutes.
Abstract: A heat seal bar used in a plastic film packaging machine for cutting and sealing plastic films about wrapped products is provided with an insert having sealing surfaces and a knife cutting edge which is removably mounted to the seal bar. A first rectangular portion of the insert is adapted to be received within an elongate slot formed in a bottom surface of the seal bar for mounting the insert to the bar with screws. A second portion of semicircular cross section extends along the bottom of the first portion and thereby projects downwardly from the seal bar. A knife blade detachably mounted in the insert has a cutting edge extending below the seal bar. The cutting edge is defined by a pair of converging knife surfaces formed on the knife blade. Convex surfaces of the second portion formed respectively on opposite sides of the knife define the sealing surfaces.
Abstract: A method of simulating stained glass art includes the steps of providing a first substrate having an easy release upper surface and applying to such upper surface a pattern of viscous leading paint. A covering of coloring paint is then applied to at least one area of such upper surface peripherally defined by the leading Paint pattern, the coloring paint covering fully extending over the area and contacting the leading paint pattern. The pattern of leading paint and the covering of coloring paint is then removed as an integral, flexible, self-sustaining unit, and the removed unit is finally applied to a second substrate.
Abstract: An apparatus for automatically taping electronic components arranged such that when a timing belt retaining lead terminals of electronic components in its retainer grooves is engaged with a toothed pulley of a first rotary drum, the lead terminals are lifted to be transferred from the timing belt to the first rotary drum. The electronic components are transferred from the first drum to a third rotary drum via a second rotary drum being retained by their retainer teeth. A base tape is fed to the periphery of the third rotary drum and an adhesive tape is applied on the base tape, thereby fixing the lead terminals.
Abstract: Disclosed is a method of making a fused pattern/core combination for a gas-turbine blade or component. A plurality of powder layers are fused together by a laser beam in a layer-by-layer fashion to produce the pattern/core combination. The core may have thin sections having a thickness of about 0.06 of an inch.