Abstract: A laminating machine for paper protection, particularly a laminating machine with a motor and a transmission device located within a casing composed of an upper casing member and a lower casing member, a pair of rollers rotating in opposite direction; having a heating element, a thermal sensor, a heat distribution plate and a heater base to melt plastic film and adhere it to paper or card; and incorporated with a pair of back to back cooling plates to cool down the laminated paper or card.

Abstract: A method and apparatus for automated resistance welding of materials is provided. The material may be thermoplastic material. The material has a layer of a second material adjacent thereto. The second material is a dissimilar material which may be applied as a film or a coating on the first material, or the second material may be a separate layer placed adjacent the first material. A heating element is placed in the interface between overlapping portions of the two pieces of material to be welded together. The layers are directly adjacent to the heating element. The layers can be consolidated onto the heating element if desired. The heating element can be composed of carbon fibers in a polymer matrix. The heating element is supplied with current to generate resistive heating. The heating causes melting of the layers adjacent to and contacting the material. Pressure is applied to the area being welded to fuse the materials together.

Abstract: The present invention provides a laminating apparatus comprising a sheet transporter for transporting a sheet, a laminating film transporter for transporting at least one laminating film in such a manner that the laminating film is superposed with at least one surface of the sheet transported by the sheet transporter. A pressing mechanism means presses the sheet and the lamenting film or films in a mutually superposed state, a heater heats the laminating film, heat capacity detector detects the heat capacity of at least one of the laminating film or films and the sheet, and a controller controls at least one of the heater and the laminating film transporter, according to a detection signal from the heat capacity detector.

Abstract: A ribbonizing apparatus and method for forming a fiber band from a plurality of fiber tows extending along respective fiber tow pathways. The ribbonizing apparatus includes an assembly for selectively heating at least a respective one of the plurality of fiber tows as the fiber tow extends along the fiber pathways. When not needed, the heat is removed from the fiber tow. A plurality of embodiments for accomplishing the method are contemplated.

Abstract: A force limiter for limiting the force between two articles getting into contact with each other, which force limiter comprises a control member (11) displaceable with respect to a holder (5), which member is pneumatically pre-stressed with a force which is substantially independent of the relative position between the holder (5) and the control member (11). The force limiter can be used in devices, in which after stopping a drive the contact force between the driven first article and the second article in contact therewith must not exceed a given threshold value. More particularly the use in ultrasonic deformation devices is considered.

Abstract: Method and assembly for reinforcing flexible graphite by fusion bonding a film of thermoplastic polymer to the flexible graphite to form a laminiated product. One side of the thermoplastic polymer is raised to its softening temperature to cause it to bond to the flexible graphite while the opposite side thereof is maintained at a temperature below its softening point.

Abstract: A substrate web (1), which is to be laminated on both sides with laminating webs (10) and (18), is brought together with and joined to a laminating web (10) coated with an adhesive film (8) in a roller gap (2) formed by two counterrollers (3) and (4). The other side of the substrate web (1) receives an adhesive film (9) from the second counterroller (4) in the roller gap (2). The second laminating web (18) is brought together with and bonded to the side of the substrate web (1), which side is coated with the adhesive film (9), in a roller gap (16) formed by a first laminating roller (15) and a second laminating roller (17).

Abstract: Portable apparatus is provided for terminating a plastic fiber optic cable mounted in a terminal connector by melting the fiber ends to form a smooth, flat end surface on each. The apparatus comprises a housing having a pistol grip, a holder for positioning a connector with the fiber ends protruding therefrom, and a heater. A polished plate is mounted on a trigger-operated holder for movement between a biased position normally engaging the heater and a position engaging the fiber ends. A heater switch energizes the heater; a temperature detector senses when the heater has reached a predetermined high temperature and illuminates an L.E.D. The operator then actuates the trigger to move the plate into engagement with the fiber ends to melt them. When the plate has cooled to a predetermined low temperature, indicating that the fiber ends are solidified, the L.E.D. extinguishes and the trigger can be released. A spring then moves the plate back into contact with the heater and the connector can be removed.

Abstract: A laminating apparatus comprises a sheet transporter for transporting a sheet, a laminating film transporter for transporting at least one laminating film in such a manner that the laminating film is superposed with at least one surface of the sheet transported by the sheet transporter, a pressing mechanism for pressing the sheet and the laminating film in a mutually superposed state, a dryer for drying the sheet before it is superposed with the laminating film, a humidity detector for detecting the humidity of the sheet, and a controller for controlling the dryer according to a detection signal from the humidity detector.

Abstract: A system is disclosed for sealing thermoplastic transparent overwraps on packages, in particular cigarette packages, using axially shiftable cylindrical cams enabling variable contact times dependent upon variable rotational speeds of the driving shaft of the overwrap machine as transferred to the cam support shafts. An encoder reads the rotational speed of each cylindrical cam and sends a signal representing that speed to a programmable controller which in turn sends a signal representative of an axial position of the cylindrical cam corresponding to the rotational speed to a reversible servo motor which functions to axially shift the cam support shaft to shift the cam relative to a cam follower. This in turn changes the dwell time of the cam follower and accordingly the contact time between the cam-controlled heater and the seam to be sealed over a variable range, while enabling the contact pressure and the temperature of the heater to remain constant.

Abstract: A single facer comprises an apparatus for automatically adjusting a gap between rolls, i.e., an apparatus for maintaining a roll gap constant. The apparatus for adjusting the distance between the centers of the roll shafts is operable to move one roll toward the other by actuating driving means. The driving means is controlled in response to the variation in the temperature of the frame which supports the driving means of the roll in place, or to the passage of time after a heating mechanism for heating the rolls has started operation.

Abstract: A two stage process of ultrasonic welding is disclosed wherein a first stage determines the amount of displacement required to produce a desired compressive force upon a seal or spring. This displacement is sent to a second stage where the desired displacement is achieved through ultrasonic bonding.In an alternative embodiment, the first stage determines the amount of displacement required to achieve non-compressive contact between the gasket (seal) and the component. This displacement is summed with an empirically determined displacement required to obtain a desired compressive force upon the gasket. The summed displacement is used as the desired displacement for the second stage.

Abstract: A method and apparatus is described for polymerization of adhesive interposed between two superimposed elements, in particular the outer and inner plastics material panels of a motor vehicle body door element; two superimposed elements are clamped, around respective portions thereof between which an adhesive substance is interposed, between respective regions of a mould and a presser device which match the profile of the said portions and are provided with internal heating devices; the heating regions of the mould are rigidly supported thereby whilst the heating regions of the presser device are defined by rods which are independently axially slidable against the action of resilient biasing means; the presser device is compressed with a predetermined pressure against the mould and, simultaneously, heat is introduced in a differentiated manner from region to region by the internal heating devices.

Abstract: Composite tape is heated from both sides by cooperating subsystem. The system at one side has a heating chute with resistance heaters, controller and thermocouple for maintaining a heating chute temperature setpoint. T.sub.chute. The opposite side of the tape has hot air selectively played on it by the other subsystem, comprising an air distribution box, air heater, controller and thermocouple for maintaining air at the tape face at an air heater setpoint temperature, T.sub.air.

Abstract: A temperature sensitive motor control for use in roofing membrane welding devices is described. The control circuit gives an output impedance responsive to variations in the temperature of the welding device and ambient temperature. A thermocouple provides a voltage signal responsive to changes in the temperature of the heating plate of the welding device. An ambient temperature sensitive circuit element acts in conjunction with the input signal to provide an output signal that is responsive to both ambient temperature and heating plate temperature. The output signal is applied to a voltage variable impedance element which outputs an impedance that is a function of both application temperature and ambient temperature. In one preferred embodiment of the present invention, the ambient temperature sensitive circuit element is a thermistor. In an alternate preferred embodiment of the present invention, the ambient temperature sensitive circuit element is a diode-comparator circuit.

Abstract: An apparatus for cutting and sealing the cut edges of semipermeable and at least partially thermoplastic fabric material is disclosed as having a support to position the material for cutting and sealing, a vacuum system to secure the material to the support to immobilize the material while the latter is being cut and sealed, an ultrasonic cutter to cut the material and to seal cut edges to prevent raveling thereof, and a guide to direct the cutter to cut the material in a desired configuration. The apparatus may be particularly adapted to cut and seal cut edges of automotive safety air bag material.

Abstract: A screen assembly, the process for its manufacture, the apparatus used in the process and an adhesive presenting a system and the final product for accurately tensioned bonded screens. The screens include a screen frame and screen cloth bonded thereto by adhesive using bisphenol F epoxy resin, amine adduct hardener, a substantial percentage of amorphous silica and small amounts of glycerin and fumed or precipitated silicon dioxide. Titanium dioxide may also be employed for color. A screen assembly apparatus includes a screen cloth tensioning frame and a platform positionable adjacent a tensioned screen cloth. The platform includes heating elements about the periphery of a sheet heater on a lift table. The heating elements receive a screen frame which can be lifted into contact with a screen cloth in the tensioning frame. The sheet heater approaches the screen cloth itself. A thermal control cycle is presented which allows the screen frame to cool prior to the tensioned screen.

Abstract: A polyethylene pipe heat fusion apparatus and method wherein the temperature, time, and hydraulic pressures necessary to create an acceptable joint are controlled by a programmable computer.

Abstract: A manually-operated device for applying a very thin material, such as roll leaf, from a roll onto a flat surface so as to imprint the material and produce an artistic result. The device has a dispenser for holding the roll of material, and the material is guided through a predetermined path under a heated stamping roller, the temperature of which is automatically controlled and maintained at a desired temperature. By using handles on the sides of the device, the user advances the roller over the material, which is dispensed smoothly, so as to apply the material to the selected surface. The device includes a manually-operated cutter to facilitate cutting of the material on a straight line when the desired amount has been applied.

Abstract: A self propelled enclosed apparatus for coupling sections of plastic pipe by fusion together to form a pipeline. The apparatus comprises a housing having a forwardly extending boom or trough for receiving pipe sections. Pipe sections are loaded onto the boom and fed to a fusion machine in the housing. The fusion machine is provided with hydraulically operated clamps and rollers to align and hold a section of pipe in mating relationship with a pipeline and a heating plate for forming a fused joint between the pipe section and the pipeline. Cooling apparatus is provided at the joint to reduce its temperature following fusion. Kick out rollers are provided, and the fused together pipeline exits the apparatus to a trailer towed thereby to be laid on the earth's surface or in trench. The trailer, self propelled apparatus, and boom are equipped with pipe support members to provide strain relief on the joint during fusion.

Abstract: A method and apparatus are provided for welding vinyl window and door frames. The apparatus includes a counting circuit or the like for measuring the time taken for burning off a selected length of a thermoplastic frame member. This time can be used to calculate a sufficient or optimal period for performing a heating or plastification step. Once the ends of the frame members are properly heated (plastified), they are fused by urging them towards each other. The fused members are then cooled for a period of time which also corresponds to the time required for burn-off. The apparatus further includes a heating plate which is pivotable between an operating position and a retracted position. The heating plate is also movable so that different surface portions can be used during burn-off and heating phases.

Abstract: A reinforced film of a laminate construction is thermally adhered to an edge of a web of paper stock in preparation for forming a reinforced edge of a file folder. The film has two layers, each having different characteristics, where the bottom layer becomes thermally active as an adhesive at a temperature substantially lower than the activation temperature of the other layer. The film is applied by directly heating the top layer to a temperature which in turn heats the bottom layer to a temperature where it acts as an adhesive. The layers can include a printed surface intermediate the film which is visible through the top layer or the layers can include an appropriate pigment to color code the edge of the folder. The apparatus can be added to existing file folder machines to apply the film without the need for sophisticated controls to tie the apparatus to the operation of the file folder machine.

Abstract: A protective coating on a pipe is embrittled by enclosing a portion of the pipe in a body defining an annular space around the protective coating. A pressurized LN2 cryogen is expanded within this annular space for sufficient time to lower the temperature of both the protective coating and the underlying pipe to a temperature below the temperature of embrittlement of the coating. The LN2 is expanded so as to form elliptical patterns on the pipe surface.

Abstract: An automatic laminator for laminating film on a board includes a control unit, input and output roller tables, and a control cabinet. The control unit includes a tacking system, film supply rolls, takeup rolls, lamination rolls, a cutting system and a vacuum system. The control unit features holding the board stationary between the completion of the tacking operation and the beginning of the lamination operation and the starting the lamination at substantially the same position where the tacking has been effected, thus improving the efficiency of operation and enabling a reduction in the time, pressure, and temperature required for the successful performance of tacking. This together with a simple and effective cutting system involving a cutting blade that moves only a few millimeters and cuts the film "on the fly" enables an increase in the rate at which the boards may be laminated. Single side lamination of very thin boards is also made possible.

Abstract: An apparatus for and a method of bonding low density or thin gauge polyurethane foams to polypropylene substrates, said apparatus including, a revolvable turntable for indexing the workpieces to various work stations, a conductive heating station to heat-liquify designated areas of the polypropylene substrate, and a compression station having compression platens to emboss the polyurethane foam onto the polypropylene substrate effectively fusing the fibers of the polyurethane foam with the heat-liquified areas of polypropylene.

Abstract: A method and arrangement for the positioning and bonding of a solid body (2), in which one part of the solid body (2) together with the bonding agent (6) is to be attached to a further element (7) and bonded to a base (4) is to be capable of positioning the solid body (2), at the point attained after positioning, with both high precision and high long term stability. The solid body (2) is immersed in the bonding agent (6) and this bonding agent is in turn located in a groove of a further electrically conducting body (7). The further body (7) is heated by current flow to a temperature at which the solid body (2) is movable within the bonding agent. Upon attaining the desired positioning of the solid body (2), the bonding agent is allowed to cool through controlled reduction of the heating current until solidification occurs.

Abstract: A device is shown for transferring sublimation decals to curved substrates such as the surfaces of ceramic mugs. The device employs a flexible transfer head which comprises a supported, flexible electrical heating pad which is made to envelop and press against the surface of the article onto which the decal design is to be transferred. The pad is then electrically heated, causing the sublimation dyes on the decal interposed between the pad and the surface of the article to be transferred from the backing sheet of the decal to the article's surface.

Abstract: An apparatus for and a method of bonding low density or thin gauge polyurethane foams to polypropylene substrates, said apparatus including, a revolvable turntable for indexing the workpieces to various work stations, a conductive heating station to heat-liquify designated areas of the polypropylene substrate, and a compression station having compression platens to emboss the polyurethane foam onto the polypropylene substrate effectively fusing the polyurethane foam with the heat-liquified areas of polypropylene.

Abstract: An automatic seam welder for thermoplastic material includes a single piece frame riding on two drive wheels and a caster, the drive wheels being driven by a drive motor through a helical spring clutch. A heat gun is gimbal mounted to the frame and includes a blower, heating element, and shaped foot to direct hot air between overlapped thermoplastic sheets. A thermocouple in the foot directly senses the air temperature and, through a control circuit in a control instrument enclosure, is used to control power to the heater element. A guide wheel, foot rest and air dam are also provided.

Abstract: An apparatus and process to permit high speed continuous motion heat sealing in the transverse direction of a moving, multiple layer web of polyethylene film. The apparatus includes a circular drum with a heated seal bar mounted flush with its cylindrical surface. The web of film wraps around the cylindrical surface of the drum and moves at the same speed. The web is pressed against the cylindrical surface by a least one rubber nip roll and is heat sealed in the area of the seal bar. The invention is particularly adapted for presealing the ends of the drawtape in the manufacture of drawtape bags.

Abstract: A device for welding portions of two overlapping roof membranes wherein a fastening means has been fastened to the lower of the two membranes and wherein there are portions of both overlapping membranes on both sides of the fastening means. The device includes a welding means which can apply welds to the membranes on both sides of the fastening means simultaneously. The welding means includes a nozzle having two outlets, with each outlet applying a heat sealing weld on one side of the fastening means. The device also includes a pair of weighted stitcher wheel assemblies which help to eliminate air pockets for underneath the roof membranes and to maintain the proper alignment of the overlapping membranes. The invention also includes a welding process using the above-mentioned device.

Abstract: In order to control the pressing-on time of sealing jaws in the sealing of folding tabs consisting of sealable packaging material, a cam element, of which the cam part or cam body 17 has a cam recess 20 of irregular shape, is used. A sensing member (tracer roller 16) is adjustable relative to the cam element as a function of the working speed of an associated packaging machine, so that different regions of the cam element which guarantee an always constant pressing-on time of sealing jaws 12 take effect.

Abstract: A method and apparatus for removing stepper guides that are adhesively bonded to a reticle. A reticle is supported in a generally horizontal position with the stepper guides in contact with heater blocks. Heating elements are placed within the heater blocks and are supplied with a controlled electrical current to maintain the heater blocks at a predetermined temperature. Heat is transferred from the heater blocks to the stepper guides. After a sufficient amount of time, the adhesive begins to flow and the stepper guides may be removed from the reticle. Separate heater blocks are configured to accommodate standard field and wide field guides.

Abstract: Glass edge sealant curing system including a method and apparatus for curing edge sealant around a stack of Thermopane windows. Infrared heating units abut three sides of the edges of a stack of Thermopanes on a conveyor. One of the infrared heating units moves in a path perpendicular to the conveyor travel, traveling in and out towards one of the edges of the glass. Once the three edges have been cured, the infrared heating unit across the conveyor raises up to allow the stack of panes to pass underneath and subsequently moves back into position for heating of the trailing edge of the stack of Thermopanes. The heaters are controlled according to one or more algorithms providing for appropriate energy consumption. Optical sensors are provided for determining the height of a stack of Thermopanes, as well as the length and width for appropriate heater energization, and thermopiles are provided for sensing the appropriate curing.

Abstract: A system for the curing of adhesive applied between a strain gauge and a transducer body. The method includes the steps of placing the transducer into contact with a fixed member, applying adhesive to a strain gauge and pressing the adhesive coated strain gauge on the transducer body while heating the fixed member. Heating is provided for by controlling the heat supplied to the fixed member so as to maintain the member at a predetermined temperature.

Abstract: A testing apparatus is provided for applying a glue bead to a first sheet of material and then adhering a second sheet of material thereto. The testing apparatus includes a glue tank and a glue head attached thereto both of which are adapted to measure and control the temperature of the glue therein. The glue head applies the glue to the first sheet of material at a preselected rate. The first sheet of material then passes to a compression cylinder which urges the second sheet of material into contact with the first sheet of material. The pressure and duration of the contact between the first and second sheets of material can be varied.

Abstract: A web width control apparatus for controlling the ratio between web width change and web thickness change during a web length varying operation in a web transport system of the type including a moving web of relatively extensible maerial having a series of repeat length portions therealong which are designed to be presented at a web processing station at a preselected constant design length value and in which each said repeat length portion is subject to stretching or shrinking in length depending upon the tension provided in the region of the web in which said repeat length portion is positioned; and further including a first set of nip rolls operable at a selected surface velocity and a second set of nip rolls operable at a selectively variable surface velocity with respect to the surface velocity of said first set of rolls for causing relative length change in a web portion positioned therebetween for adjustably maintaining the respect length portions of the web at said predetermined design length value at

Abstract: Disclosed is a method and apparatus for joining a metal skin to an internal structure comprising forming the metal skin to a permanent desired contour; assembling a lattice of ribs and spars and bonding the lattice to the contoured skin and subsequently forming the completed structure by bonding a pair of skin-superstructure assemblies together. Also disclosed is a diaphram designed to apply pressure to the skin only along structurally supported area of the skin to prevent damage.

Abstract: A method and apparatus are disclosed for the fabrication of pultruded articles. The apparatus includes a means for heating the interior of a bundle of resin-wetted reinforcing material prior to the bundle passing into a heating forming die which heats the exterior of the bundle. Insertion of a thermocouple wire into the interior of the bundle prior to the bundle passing into the heated forming die allows the temperature of the bundle interior to be monitored during the curing process that occurs within the heating forming die. Adjustment of the bundle interior temperature relative to the bundle exterior temperature eliminates stresses caused by adverse thermal gradients that normally would exist without the use of such a bundle interior heater. Use of such a bundle interior heater allows the pultrusion of parts having a greater or thicker cross section than those now normally available.

Abstract: A welding apparatus for producing at least two spaced welding seams for welding together overlapping ends of two lengths of thermoplastic synthetic resin sheets at a welding station, comprises a frame, a heating device arranged on the frame ahead of the welding station in an operating direction and being displaceable in this direction. The heating device includes at least two spaced welding wedges and a separate heating element arranged in each one of the welding wedges, each heating element being independently thermostatically controllable.

Abstract: An apparatus for sealing a web of film including a heater member for melting a portion of the film to create side and chevron seals. A back-up bar is located diametric the heater member. The heater member includes two elongated heater bars and two wing heater bars.

Abstract: A system for transferring an image to an article and includes a base for supporting the article, an article conveyor for sequentially moving articles onto and off of the base in a given direction between an entrance end and an exit end, a roller disposed adjacent to the base, an image conveyor for sequentially moving transferrable images into a position between the base and the roller, a transfer mechanism for producing relative movement between the base and the roller such that an image and an article are pressed together therebetween, a primary heater for transferring heat to a first surface portion of said roller located opposite to the base, and an auxiliary heater for transferring heat to a second surface portion of the roller end located between the first surface portion and the exit end of said base.

Abstract: A knitted, woven or non woven article such as a glove for example, having a wrist cuff includes an edge binding which is activatable by the application of heat thereto to prevent unraveling of the cuff edge. The bound edge is defined by first and second yarn ends which are knitted or woven together, wherein the first yarn includes a heat activatable, thermoplastic outer covering and the second yarn is defined by a nonthermoplastic, elastic material. The first and second yarns are knitted or woven in a manner to form crossover points therebetween. The edge binding is subjected to heat in order to melt the thermoplastic outer covering of the first yarn, thereby joining the first and second yarns at the crossover points. The articles may be formed on conventional, automatic knitting machines. The knitted articles are ejected from the machine and are gravity fed into a device which melts the thermoplastic outer covering of the first yarn, and thereby bind the edge of the article.

Abstract: A flat film 11 is delivered from a supply roll 12 to a folding device with a tube forming part 17 and is folded into a tube envelope 23. The butt or overlap seam of the folded tube envelope 23 is covered with a sealing strip 14. The folded tube envelope 23 together with the sealing strip 14 is guided between a partial periphery of a sealing drum 2 and an electrically heated heating band 3 and is sealed under heat and pressure applied by the heating band 3. Electrical current is supplied to the endlessly revolving heating band 3 via feed rollers 6 and 7 from a current source 20 connected, via lines 21 and 22, to sliding contacts 8 which rest against the two sides of each feed roller. An endlessly revolving, cooled steel band 26 is in contact with the seam of the sealed tube envelope 18 and is guided around a cooling roller 9.

Abstract: A hot plate welding device designed specifically to apply asphalt membrane roofing material (hereafter referred to as material) without the use of an open flame. The device uses an electrically heated curved platen which heats the material as it is moved across and in contact with the heated platen. A cylindrical pressure roller applies pressure to the material to insure proper adhesion of the entire surface of the material to the roof structure. A variable speed motor is used as a drive motor for the device. This motor is interlocked with a sensor which senses the temperature of the material. If the material is not at proper temperature the device automatically slows down and waits for the material temperature to catch up to application temperature. The device is designed to have a low center of gravity which allows the device to be used on a roof of mild slope and where the device must fit under pipes and other obstacles commonly encountered when applying such roofing materials.

Abstract: A device for connecting two layers of heat meltable material together comprises a toothed member which can be heated and pressed against a ribbed member with the layers of material therebetween. The toothed member includes three rows of teeth with gaps between adjacent teeth. Each row is separated by a gap thickness and the teeth have preferred widths. Thicknesses and lengths. The ribbed member has a pair of ribs that defines three grooves for receiving the three rows of teeth. Clearance is provided between the teeth and ribs while the teeth are bevelled to produce perforations in the heat meltable layers while firmly sealing the layers together around a periphery of each perforation.

Abstract: A process for laminating discrete sections of a supported photosensitive layer onto a continuing series of sheet substrates. Each substrate is advanced to and through the nip of heated application rolls, and a continuous length of the supported photosensitive layer is also supplied to the nip. When the substrate reaches a first location positioned between the application rolls, all movement ceases except that the rolls move from an inactive disengaged position toward the substrate to an active position to cause pressure contact between the photosensitive layer and the substrate to thereby laminate the photosensitive layer to the substrate. There is a pause for a predetermined period of time with the rolls in the active positions before the substrate is again advanced with the rolls still in the active positions and the photosensitive layer again supplied to the nip.

Abstract: Apparatus for use in fushion welding joints in a plastic pipe system comprising a heating device including a housing providing a rearwardly disposed pistol grip handle, a heating member secured in heat insulating relation to the housing in a forwardly extending position with respect to the pistol grip handle, a secondary handle structure detachably fixedly secured to a side of the housing at one end thereof and extending outwardly therefrom having an adjustable depth gauge on the outer end thereof for receiving the end of a plastic pipe and determining the depth to which the pipe end should be heated to fushion weld the same into a mating socket of a plastic fitting, a clamping device operable to be clamped in rounding engagement with the exterior periphery of the plastic pipe at a position inwardly of the depth thereof determined by the depth gauge, heatable socket and plug members detachably fixedly secured to the heating member for receiving in heat conducting relation a plastic pipe end and a mating socke

Abstract: An apparatus for heat curing epoxy banded fiber optic connectors includes a housing containing a heater control circuit and an electronic thermometer. An L-shaped jig is attached to a surface of the housing with an interposing insulator. A heating element and temperature sensors are connect to the jig.

Abstract: A method of curing adhesive applied between a strain gauge and a transducer body. The method includes the steps of placing the transducer into contact with a fixed member, applying adhesive to a strain gauge and pressing the adhesive coated strain gauge on the transducer body while heating the fixed member. Heating is provided for by controlling the heat supplied to the fixed member so as to maintain the member at a predetermined temperature.