Abstract: A method of processing textile fiber includes the steps of removing fiber tufts from fiber bale tops by a fiber bale opening device by effecting a travel of the opening device back-and-forth above serially arranged fiber bales to execute consecutive opening passes; lowering the opening device prior to each opening pass for adapting the opening device to the height level of the fiber bale tops; introducing the fiber tufts removed by the bale opener into a fiber storage device; conveying the fiber tufts from the fiber storage device to a successive processing station; and varying the duration of the opening passes by varying the travelling speed of the opening device. The travelling speed is varied as a function of a fiber quantity requirement by a fiber processing machine forming part of a fiber processing line and being supplied by fiber, at least indirectly, by the fiber bale opening device.

Abstract: A chain conveyor of a fabric web stretching machine includes input and output sides of the machine, an endless roller chain having a forward and rearward running parts, chain links, chain bolts absorbing longitudinal chain forces, stretching devices disposed at each of the chain links, a guide rail disposed at the forward running part forming a support for horizontally directed transverse forces to be exerted on the fabric web, chain wheels disposed at the input and output sides of the machine forming transitions between the forward and backward running parts each having teeth engaging in the chain at respective longitudinal ends of the guide rail, a transverse force roller being associated with each of the stretching devices for transferring transverse forces, roller bearings on which the transverse force rollers are supported about a vertical axis coaxial to a respective one of the chain bolts, the transverse force rollers abutting an outer surface of the guide rail facing away from the fabric web, the toot

Abstract: An apparatus for passing a thread through a member formed with an opening, comprising; a first member formed with a passageway passing therethrough movable in an axial direction; the first member comprising upper and lower parts which are movable toward and away from each other in a direction substantially perpendicular to the axial direction; a second member formed with a passageway passing therethrough, the second member and the first member being movable toward and away from each in the axial direction; a unit for interposing the member formed with an opening between the first and second members; a unit for transferring the thread to the passageway of the first member; a unit for passing the thread through the passageway of the first member, the opening in the member and the passageway of the second member by vaccum suction; and a unit for taking out the thread passed through the opening of the member from the first member.

Abstract: Wound capacitors are manufactured by winding foils on a mandrel which is heated sufficiently to set the initial turns without fusing them, thus stabilizing the circular profile produced by the mandrel so that the profile is retained when the mandrel is removed from the wound capacitor.

Abstract: A torque-applying device for a cylinder rod and piston in which the threaded end of the rod extends through the piston and is retained thereon by a nut tightened against the piston composed of an open-ended, elongated, horizontally extending rectangular square tube, a stabilizing stand supporting one end of the tube and a structural post depending from and supporting the opposite end of the tube; a rectangular-shaped, piston rod carrier having its outer dimension substantially the same as the internal dimensions of the rectangular tube and supported within the tube to slide horizontally, the carrier having a pin thereon for non-rotatably mounting on the carrier the remote or free end of the piston rod, a wrench mounted on the nut at the piston end of the piston rod and including a torque-applying arm, and an hydraulic cylinder extending between the post and arm for applying torque to the wrench and nut for tightening and/or loosening the nut on the threaded end of the rod.

Abstract: A fixture for defining the window of a jointed magnetic core, which core is constructed of amorphous metal alloy, and methods of constructing such a fixture. The fixture includes first and second substantially U-shaped metallic frame members which are easily and quickly assembled with interlocking joints which positively maintain the desired geometric configuration of the core window, as well as the peripheral dimension thereof. Notwithstanding the high mechanical strength of the fixture, the interlocking joints are easily unlocked, which feature is necessary as the fixture will be required to be assembled, disassembled, and reassembled a part of the normal processing of the magnetic core. New and improved methods of constructing the fixture enable the same tooling to be used for different sizes of fixtures, which are required to cover the range of transformer ratings the magnetic cores will be an integral part of.

Abstract: A method of producing an oil seal comprises the following steps: a slicing step in which a seal ring is sliced from an end of a tubular billet of a resin material in a predetermined axial thickness; a fixing step in which the radially outer portion of the seal ring is fixed in the support member; and a bending-out/thread-forming step in which the radially inner portion of the seal ring is bent out of the plane of the radially outer portion of the seal ring thereby forming a tubular seal lip, and sequentially after forming of this seal lip, a screw thread is formed on the inner peripheral surface of the tubular seal lip. The fixing step is conducted by a press having an upper die and a lower die, in which the seal ring is fixed in the support member.

Abstract: The invention applies to a device for mounting a nasal rest pad on a support member integral with a rim or eyewire of a spectacle frame, comprising a resilient piece that is drawn out in order to be passed in a loop of the arm and in an ear of the pad, and this piece is thereafter released and constricted in the loop and the ear, thus assembling the rest pad to the support arm and the device is applied to a spectacle frame automatically adapted to noses of various shapes.

Abstract: A method of applying and removing a fluid actuated nut, the nut having a cylindrical casing engageable at an inner end with a base, the casing containing a coaxial relatively axially shiftable plunger having an inwardly opening partial central bore for threadedly receiving a shank of a bolt, a compression spring acting outwardly on the plunger and inwardly against the casing, and a fluid pressure chamber outwardly of the piston, the nut being applied by screwing the piston onto the bolt shank to the point of engagement of the inner end of the casing with the base and tightened by sequentially compressing the spring by fluid injected under pressure in the fluid chamber for shifting the casing away from the base, turning the casing to reengage the base and releasing the fluid pressure to expand the spring, and repeating the sequence as necessary to produce the desired tensile and/or compressive force, the nut being removed by applying fluid pressure to advance the piston for compressing the spring and disengagi

Abstract: An exchangeable multiple function end effector tool suitable for use on the distal end of a robotic end effector includes, in combination; a mechanism for removably affixing the multiple function end effector tool onto a pair of extending fingers provided on a robotic end effector. The multiple function tool is provided with a first gripping device for acquiring a first element or component and releasably retaining it and further incorporates a second gripping device which is capable of acquiring a second element or component and releasably retaining it in the tool. Provision is made for engaging and disengaging the elements either separately or in unison. Movement, assembly or disassembly of the elements remains a function of the end effector and its control mechanisms.

Abstract: A method and apparatus for positioning and transferring stator coil leads in a dynamoelectric stator assembling machine. The apparatus includes holding devices for positioning and retaining the stator coil leads after the coils are wound and before they are inserted into the stator core. The apparatus also includes lead pullers for transferring the leads, during insertion of the coils into the stator core, from the inserting equipment to a stator carrying pallet having lead retaining devices herein. The apparatus further includes lead catchers for capturing the leads from the stator pallet lead retaining devices and for transferring the leads from the stator pallet to a lead finishing apparatus.

Abstract: Superconductors having a high proportion of stabilization material are produced by first forming a composite member composed of pieces of stabilization material and rods of stabilization material containing cores of superconductive material and this composite member is deformed to reduce the cross section by extrusion and drawing. To increase the proportion of stabilization material, the composite material is subsequently introduced into an enveloping tube composed of stabilization material and the resulting assembly is deformed to final dimensions by means of further drawing processes. Breaks of the superconductive filaments are avoided by providing adequate amounts of stabilization material in the central region of the composite member. The result is that filament superconductors having a high proportion of stabilization material can be manufactured at a relatively low cost.

Abstract: A weighty object mounting system comprises tact-transporting means for transporting a transportable object so as to have the same stop temporarily at each working stations, position detecting means for detecting a stop position of the transportable object stopped at one of the stations, a lifter provided in a mounting station and including a mounting portion provided for supporting a weighty object placed thereon and arranged to be movable forward and backward, right and left, and up and down in relation to the transportable object in the mounting station and a driving portion for moving the mounting portion so as to cause the weighty object to engage with the transportable object and to be automatically mounted to the same, and control means operative to supply the driving portion with control commands which direct the driving portion to cause the mounting portion to have each of predetermined movements at a predetermined timing, and operative also to calculate a misalignment between the transportable object

Abstract: A marking light, or an attaching-position indicator, for a buttoning apparatus to indicate the position where each button member is to be attached in place, comprises a slender optical pointer member, engaging means secured to the rear end of the optical pointer member for selective engagement with a part of a pusher of the buttoning apparatus, a fixing member for the indicator including a support having means to support the front end portion of the pointer member so as to be movable back and forth with respect to a position immediately below an upper attaching die of the apparatus, release means connected to the engaging means for disengaging the engaging means from a part of the pusher, and means for biasing the pointer member in the direction of withdrawal clear of the upper attaching die. The support is equipped with a resilient engaging means fixed at one end to the fixing member and so disposed as to engage resiliently a part of the support at the other end.

Abstract: An apparatus for inserting rods of a rod bundle from a nuclear reactor fuel assembly into a vessel includes a dense-setting device including: a holding cage for laterally holding the rods together in a given dense packing with mutually parallel longitudinal axes, the cage having a bottom on which one end of each of the rods stand; an insert associated with the holding cage having two ends and guide channels receiving the rods, the guide channels defining an outlet cross section at one end near the bottom with outlet openings disposed according to the given dense packing, and the guide channels defining an inlet cross section at the other end at which the rods are inserted with inlet openings disposed according to the position of the rods in the rod bundle, the insert including a plate having the inlet openings formed therein defining the inlet cross section, the plate being movable toward the outlet cross section against a spring up to a stop; and a pulling tool for pulling the insert out of the holding cage

Abstract: The system of the invention includes a downender station 10 which receives and secures a spent fuel assembly 20 in a vertical disposition and is then pivoted to a horizontal position after the upper nozzle has been removed, and a second station 12 generally aligned with the first station includes a multiple rod gripper 56 which is used to grip onto the exposed fuel rod ends and pull the fuel rods to an upper horizontal location in the second station, with horizontal and vertical combs 60 and 62 maintaining the original square pitch array of the rods, and the rods are then dropped into a reconfiguring structure 70 where they assume a more compact array, the rods then being pushed by pusher 74 into a storage canister 26 carried by the downender below the fuel assembly 20. The arrangement permits compacting fuel rods from two fuel assemblies into a storage canister 26 having approximately the same transverse cross-sectional area as a single fuel assembly.

Abstract: A rotary apparatus of a successive feed die unit of a press apparatus includes an indexing apparatus and a frictional transmission apparatus for transmitting rotation to a lower rotatable die of the die unit for manufacturing a core lamination assembly. The indexing apparatus converts rotation inputted from a crank shaft of a press apparatus into intermittent rotation of a predetermined angle and outputs it to the frictional transmission apparatus. The frictional transmission apparatus has a changeable rotation speed without steps, inputs the intermittent rotation from the indexing apparatus, adds rotational volume of a predetermined skew angle in a positive or negative direction to the inputted intermittent rotation, and transmits the total rotation to the lower rotatable die.

Abstract: A tool for insertion and extraction of a packaged IC to and from a socket includes a pair of flexible, parallel arms joined at two ends by a "U" shaped portion. The free ends of the two when moved towards each other are adapted to grip the IC at opposite ends and allow a rocking motion to be applied to loosen the pins of the IC within the socket and then for a lifting force to be applied to remove the IC the socket, all with minimum distortion of the pins. A plunger having a base which is positioned and is free to move between the two parallel walls within the "U" is used to insert an IC into its socket. The IC is positioned between the two walls of the "U" with the pins of the IC pointing outwards and the surface opposite the pins in contact with the base of the plunger. The IC is retained within the "U" by a predetermined interference fit between the walls and the IC.

Abstract: An improved clipper and oscillating drive lever for engaging a slot in the movable cutter of a clipper. The distal end of the lever has two resilient prongs biased to a first spread greater than the dimension of the slot such that the prongs must be squeezed together to engage the slot. Some preferred embodiments include inwardly-turned tips. Reduced noise and improved cutting efficiency are provided.

Abstract: The process utilizes a volatile organo halosilane, such as trimethylchlorosilane, injected through a mass flow controller into a deposition, or like, reactor to dry the mass flow controller, transfer lines and injectors, the deposition surfaces and reactor walls, the exhaust manifold, and vacuum pump and oil.

Abstract: The lining comprises an ankle part consisting of a front portion (4) and of a rear tongue (5) articulated at the level of the heel, and also of a portion (2) surrounding the foot. The lining possesses a transverse cut-out (20) on the instep, allowing free forward flexion of the ankle part. The portion extending over the foot possesses in addition a lengthwise slit (9) opening into the transverse cut-out (20) and allowing uniform gripping of the foot, preferably without any overlap of the two edges of this slit.

Abstract: An improved sole for soccer shoes of the type having an annular cleat providing improved pivotability and excellent traction. The annular cleat extends along a substantially circular path which has medial and lateral opposed main side portions, the inside main side portion being spaced from the inside sole edge by a distance substantially greater than the lateral main side portion is from the sole outside edge. Preferred embodiments have opposed breaks along the opposed main side portions.

Abstract: A traction cleat for removable attachment to footwear includes a metal stud infrastructure with a vertical axis and two ends, the infrastructure further including a stem portion at the first end for attachment to a shoe, a head portion at the second end for tractive engagement with the ground, and a broad flange between the stem and head portions and extending radially outward from the vertical axis. A plastic skirt is molded directly upon the flange portion of the metal infrastructure, the resultant unitary skirt and flange forming the reinforced radial support member of the cleat.

Abstract: An embroidery hoop comprises an inner ring and a split outer ring circumscribing the inner ring. The outer ring is adjustable in diameter relative to the inner ring to bring the inside surface of the outer ring into abutment with the outside surface of the innner ring. A ridge and a mating groove provided on the abutting surfaces prevent lateral displacement of the rings and thereby enable the fabric to be stretched across either side of the hoop and to be embroidered on either surface. The ridge and groove also urge the rings together as the fabric is pulled taut within the hoop, increasing the bite of the hoop upon the fabric. Legs may be affixed to one of the rings for supporting the hoop on a supporting surface during embroidery.

Abstract: A display element mounting arrangement provides a pair of display holders for frictionally-engaging and supporting an elongated display element at its opposite ends. The display holders are adapted to be mounted on and frictionally secured to a support member, such as a circuit board. Each display holder includes a display-engaging portion and a support member-engaging portion. The display-engaging portion includes four walls which define a chamber into which an end of the display is inserted. Friction tabs in the chamber aid in retainedly engaging the display. The support member-engaging portion includes a leg adapted to extend through and move in a slot which extends inward from an edge of the circuit board. A foot formed on the end of the leg is so spaced from the display-engaging portion as to provide frictional engagement between it and the circuit board.

Abstract: A bolt assembly for a firearm is constructed with three locking lugs, one of which is oriented down in unlocked condition as it is withdrawn past the magazine of the firearm. The body of the bolt is of reduced diameter with respect to the bolt head which carries the locking lugs. A cartridge depressor is mounted in association with the bolt body to effectively increase the diameter of the bolt body in the vicinity of the magazine to that of the bolt head.

Abstract: A safety device for use with firearms which comprises opposed contact means, each of which defines an enclosed opening, the means being on separate members and being arranged so that they can be moved apart to be located between the trigger guard of a firearm and the trigger of the firearm, with the trigger being depressed, the device having securing means whereby, when the required position is achieved, the contact means are maintained in this position.

Abstract: A portable, collapsible, walled structure suitable for use as a hunting blind to hide a hunter, nature observer, or photographer from view of animals being hunted, watched, or photographed, includes a plurality of resilient poles bent into stressed, arcuate shapes with ends thereof secured to a base member defining the perimeter of the structure and with flexible sheeting material held between the base members and the resilient poles to form substantially vertical walls for the structure. The structure has an open unobstructed top, and preferably an open bottom so that the structure may be used in marshy areas or in shallow water areas.

Abstract: A barbless fish hook having particular application to fly fishing. The fish hook has a flat barbless point which is specially shaped to penetrate and remain embedded in fish and yet can be easily removed by the fisherman. The point has opposing flat surfaces, one of which faces the shank. The side edges which bound the faces of the point converge from a pair of nodes to form a sharp tip. The width of the point between the nodes is greater than the diameter of the wire which forms the bend of the hook.

Abstract: A security system for a jail cell block is described. The individual cells are each provided by drop bar means which are shiftable between a position in which the cell door is locked and a position in which the door is released for opening movement. Deadlock means are provided to prevent movement of the drop bar means to the release position. A master control has a "Deadlock", a "Release" and an "Individual Cell" mode. In the "Deadlock" mode, additional means are provided to prevent movement of the drop bar means, of all cells, out of their locking positions. In the "Release" mode, the deadlock means of all cells are disabled and the drop bar means are displaced to their release positions.

Abstract: A cantilevered sliding gate made up of a number of panels is disclosed. The panels are joined by post-tensioning rods, carried within horizontal members of the gate and extending substantially the length of horizontal members of the gate. During gate assembly, a tensile stress is induced in the post-tensioning means, which stress is transmitted to the horizontal member as a compressive stress. The resulting stress pattern results in a stiffening effect on the gate assembly, permitting lighter-weight construction than previously possible. The gate is mounted on vertical supports for movement in a plane defined by the supports.

Abstract: A device for sharpening knives, comprising a frame and a grinding element rotatably mounted in the frame. The grinding element is provided with two cone-shaped grinding surfaces turned towards each other. The cone angle of the grinding surfaces varies in the peripheral direction of the grinding element, with at least one portion with a small cone angle having a rougher surface than the portion having a wide cone angle.

Abstract: Apparatus for the positional control of the edge grinding of an ophthalmic lens to a desired peripheral shape is effected by a control computer which processes and stores data representative of a pattern which delineates the peripheral shape of the lens. The data is derived by rotating a linear image sensor about an axis passing through a support for a pattern which delineates the required shape. The sensor generates pixel data which is processed and stored by the control computer for use for selective control of a lens periphery grinder.

Abstract: A drum-cleaning machine having a casing with an indexing mechanism to move drums therethrough at a 45-degree angle, such indexing mechanism including wheels spinning the drums at stations between such wheels; at least one upper shotblast wheel positioned on the casing above the drum whose shotblast pattern is directed downward and is adapted to clean the bottom and sides of the drum; at least one side-mounted shotblast wheel positioned on the casing aligned with the upper shotblast wheel such side-mounted shotblast wheel's shotblast pattern being directed substantially horizontal and adapted to clean the bottom of each drum and if the drum has an open bottom, is adapted to clean the inner sides and inside of the closed end of the drum.

Abstract: An exhaust and reclaim system for a blasting enclosure having exhausting means which includes two separate exhaust paths for the exhausted blasting media. One path primarily for the heavier media is through a perforated floor into means located under the floor from whence the exhausted blasting media is separated into reusable and non-usable media. The second path primarily for the lighter media that is suspended in the compartment is through filter means located at one end of the compartment. The particles of such media are intercepted by the filter means and then dispensed into the first path of the heavier particles for subsequent separation into usable and non-usable media.

Abstract: An abrasive throwing wheel comprises a backplate, a plurality of equi-angularly spaced radially-extending, throwing or paddle blades and a central impellor, all formed as an integral unit, and with the blades configured to render the throwing wheel operationally bi-directional. The throwing wheel may be cast from "hard" metal generally a high chrome content alloy; or it may comprise a metallic core with a plastics coating (preferably an elastomeric polyurethane coating) moulded therearound; or it may be formed wholly of plastics, preferably an elastomeric polyurethane coating.

Abstract: An examination unit which is particularly suitable as an ophthalmologic examination unit for the examination of a patient by an ophthalmologist, comprises a storage region for an examination apparatus, wherein the storage region is defined by a wall, and an opening in the wall for passing the examination apparatus therethrough from the storage region. In order to ensure an easy transfer of the examination unit to the patient a support frame is provided in the storage region having a pivot bearing with a pivot axis. A swivel arm is pivotable around the pivot axis from a rest position in which the swivel arm is positioned within the storage region, into an operating position in which the swivel arm has the free end thereof laterally swung out of the storage region through the opening. Furthermore, the examination apparatus is suspended at the free end of the swivel arm.

Abstract: An assemblage of interconnected mobile homes mounted one above the other consisting of a supporting framework for the assemblage, the framework including oppositely disposed pairs of tracks, each home being provided with oppositely disposed pairs of runners, the runners being adapted to mate with the tracks and slide therein to move the home into final position and be securely clamped thereby.

Abstract: Building structures based on polygonal members with coplanar straight edges and icosahedral symmetry. The building structures comprise a set of ten elementary polygonal members, including four triangular members and six parallelogram-shaped members, that are combined to form tetrahedral, octahedral and half-octahedral or trucated tetrahedral, cuboctahedral and truncated octahedral or rhombohedral and parallelpiped building members that in turn fill a three-dimensional space periodically or non-periodically. The orientation of the building members is such that all edges are parallel to the fifteen two-fold axes of rotation of icosahedral symmetry.

Abstract: A molded roof section for use with dwelling units includes a domed main body portion which is arranged with a leading edge, an opposite trailing edge, and two side edges. The leading edge is configured with strengthening ribs and a defined groove while the trailing edge also including strengthening ribs is configured with a tongue such that the leading edge of one roof section may be assembled to the trailing edge of the contiguous roof section by a tongue-in-groove assembly concept. The side edges of said roof section are arranged with downwardly opening channels which are spaced so as to correspond to the spacing between dwelling unit side walls. Each roof section is molded of a high-density polymer foam as a homogeneous, unitary member and each roof section may be easily and readily lifted in place and lowered onto the side walls such the side walls fit into the downwardly opening channels of each section.

Abstract: In order to decrease the number of different structural elements required and to expedite the assembly of a rapid-construction framework as a support structure for ceilings and wall plates of a building, modular connections are used, each having four shaped guide bars, for connection of supports with tie bars of the rapid-construction framework, which are brought into force- and form-locking engagement with the hollow spaces of the supports or hollow main elements at the ends of the tie bars, for the assembly of the framework. Main elements, which are hollow on the tie bar side, are of the same dimensions and are welded in the same manner to the ends of the tie bars. A leveling member 40 is of diameter to that of the supports.

Abstract: A fire resistant wall construction incorporating a phase conversion material the phase conversion of which takes place at a temperature below the temperature at which wood, paper etc. is liable to ignite. The phase conversion material includes a mass (2) produced from a mixture of water-glass in liquid phase and water and a binder such as cement or the like, the phase conversion material having a water content of such magnitude that the endothermic reaction taking place during the phase conversion process is essentially constituted by the vaporization of the water present.

Abstract: A vaulted skylight apparatus provides modular skylight panel having a pair of first and second spaced apart, generally parallel, sheets of flexible material with an insulating air space therebetween. The modular panel can be curved by cold forming so that the panels can conform to a network of structural tubing, forming a quarter round vault, a half round vault, a structural barrel vault, or the like. The sheets are supported peripherally by a frame which includes first and second frame members that are affixed respectively to the first and second panels forming a seal therewith. The first and second frame members are movably connected, holding the first and second frame members together during simultaneous cold forming of the first and second sheets into the desired curved vaulted position as aforedescribed.

Abstract: The novel system discloses both a batch operation and a continuous operation for supplying pressured liquid and a pressured slurry to an abrasive-jet cutting nozzle. In the batch operation, a single vessel for receiving and pressuring slurry is provided and this vessel goes off line, to be recharged with slurry, when it has disgorged its contents to the nozzle. In the continuous operation, a pair of such vessels are provided, and one supplies the nozzle with slurry while the other, having been emptied, is recharged with slurry; valves switch therebetween, to put a re-charged vessel on line, and an emptied one re-charging, to maintain a continuous slurry input for the nozzle.

Abstract: A grid, the size of which is selectable to conform to a window opening, or the like, comprising(a) multiple couplings, and(b) elongated grid members having slidable telescopic interfit with said couplings to define(i) peripheral frame members, and(ii) other members which extend between the frame members.

Abstract: In securing an anchor in a borehole in a receiving material, a settable hydraulic dowel compound is introduced into the borehole either before, during or after the placement of the anchor member. The dowel compound includes an expandable component. The diameters of the borehole and the anchor member are selected so that an annular gap extends around the anchor member with the gap having a maximum area of 200 mm.sup.2. The expandable component ensures an increase in the volume of the dowel component above the initial volume in a free expansion procedure.

Abstract: A method and apparatus for tensioning or drawing taut a plastic bag or packaging around a product prior to sealing is disclosed. The apparatus operates in combination with presently available conveying means and packaging sealing means. The apparatus includes a housing to support and contain a pair of conical brushes having rotational axes parallel to the direction of travel of the conveyor belt. The conical brushes rotate in opposite directions so as to draw excess packaging material into the nip formed by the tip of the brushes to smooth away wrinkles and/or folds. A transport and gripping belt then closes the bag and moves it past a pair of cylindrical shaped brushes which may be on the same shaft as the conical brushes. The cylindrical brushes draw the packaging material tight or taut around the product in a manner suitable for sealing.

Abstract: A method of making a succession of food or beverage containers each comprising a vessel having a mouth surrounded by a rim presenting an upper surface of plastics material. The method comprises filling each vessel in turn and feeding over the vessel a continuous composite web of lidding material produced by forming spaced apart perforations, each comprising at least one through hole, in a continuous first web of diaphragm material having a plastics surface weldable to the vessel rim. The method also comprises forming spaced apart pull tabs in a continuous second web of peel strip material by folding each of a succession of portions of the second web against itself to form each pull tab and subsequently applying and peelably securing the second web which is narrower than the first web to the first web so as to obturate the perforations such that one pull tab is situated adjacent each perforation and remains secured to the second web only at a junction on its one end.

Abstract: Pressure resistant containers, each consisting of a pressure resistant box opened at the front surface thereof and a wall plate, are circulated along an endless track with the wall plates directed outward. The front and back surfaces of each wall plate are each provided with a clamp for supporting a soft pliable bag. The bag is fed to the clamp disposed outside the pressure resistant container, and the bag is clamped by the clamp. The mouth of the bag is then opened to fill the bag with an article. Subsequently, the wall plate is turned inside out to admit the bag in the pressure resistant container, and the bag is subjected to a vacuum in the pressure resistant container and the mouth of the bag is sealed.

Abstract: Process and apparatus for an orbital stretch wrapper to form two superimposed layers of opposite pitch on items or bundles. Shrinkable film is drawn off two separate supply rolls under tension simultaneously in opposing rotational directions. The rolls are placed successively along the length of a conveyor belt separated by at least one width of the film.