Abstract: A method for installing a locking nut or bolt includes drilling a bore having at least two diameters in a surface of an element so as to accommodate a fastener assembly having a threaded shaft and a group of elements including a cylinder a locking ring, two retaining rings and a conical spring, serrating an area of the bore having the layer diameter, screwing the fastener assembly into the bore, applying a torque to the group of elements while suppressing the locking ring thereby engaging the locking ring into the serrated area of the bore, retracting an outer sleeve of the tool and tightening the group of elements.

Abstract: A belt cutting apparatus and method of making same are provided for cutting a non-contoured and cured polymeric belt sleeve to define an endless power transmission belt construction having at least one pair of opposed non-parallel side portions wherein such apparatus utilizes a rotatable cutting instrument comprised of a rotatable support body having a central axis, at least one rake-like cutting bar having an elongate axis and having cutting means provided thereon as an integral part thereof with the cutting means providing the belt construction, and means supporting the bar on the body with its elongate axis parallel to and radially spaced from the central axis and wherein the cutting means extends perpendicular to the elongate axis.

Abstract: A metal gate field effect transistor has its source and drain located on one major surface of a gallium arsenide layer, while its gate electrode forms a Schottky barrier contact to an opposed major surface of the layer in a self-aligned relationship to the source and drain.

Abstract: A process for fabricating volatile and nonvolatile field effect devices on a common semiconductor wafer, and a unique composite structure for a nonvolatile memory device fabricated according to the process. A distinct feature of the process is the elimination of nitride from beneath any poly I layers while selectively retaining sandwiched and coextensive segments of nitride and poly II layers for the memory devices. In one form, the method commences with a wafer treated according to the general localized oxidation of silicon process, followed by a blanket enhancement implant and selectively masked depletion implants. The succeeding contact etch step is followed by a deposition of a poly I layer, a resistor forming implant and a patterned etch of the poly I layer. Thereafter, a first isolation oxide is grown, selective implants are performed to center the memory window, the memory area is etched, and the memory area is covered by a regrowth of a very thin memory oxide.

Abstract: An improved method of grounding a pellet mounting pad is disclosed wherein the ground wire is bonded to one of the structural support members of the mounting pad rather than to the surface of the pad itself.

Abstract: A method and apparatus for replacing spent dielectric material at the high-valued resistor in an electrostatic spray gun, having an insulating tube disposed within a bore formed in the gun barrel which receives the resistor encapsulated with spent dielectric material, comprises the steps of inserting a syringe apparatus into the insulating tube, dispensing new dielectric material contained within the syringe into the insulating tube while withdrawing the syringe therefrom, and then inserting a high voltage cable into the insulating tube to force the new dielectric material ahead of the cable. The new dielectric material encapsulates the resistor and forces the spent dielectric material between the insulating tube and gun barrel bore away from the resistor.

Abstract: Apparatus for inserting a wire into a wire-receiving slot of a terminal and simultaneously crimping a U-shaped strain relief portion of the terminal onto the wire comprises a ram made up of a tool holder portion and a force transmitting portion. A crimping die and an inserter are mounted on the tool holder portion to crimp and insert during the stroke of the ram. A spring is mounted between the force transmitting portion and the tool holder portion and is preloaded to the extent that it will be compressed when a force F is exceeded, this force being the force required to crimp the strain relief portion of the terminal onto the wire. An actuator is provided which applies the required force to the force transmitting portion of the ram. The apparatus can be used to crimp and insert wires within a range of diameters.

Abstract: An electric can opener comprises a can opener body, a can opening attachment and a juice squeezing attachment. The can opener body is provided with a drive shaft, a motor for rotating said drive shaft, a vertically holding portion and a horizontally holding portion. When the vertically holding portion is utilized to set the can opener body, the drive shaft assumes a horizontal condition. A horizontal rotating shaft provided on the can opening attachment can be brought into engagement with the drive shaft in the horizontal condition. Accordingly, the can opening attachment is utilized to cut out a lid of a can. On the other hand, when the horizontal holding portion is utilized to set the can opener body, the drive shaft assumes a vertical condition. A vertical rotating shaft provided on the juice squeezing attachment can be brought into engagement with the drive shaft in the vertical condition. Accordingly, the juice squeezing attachment can be utilized to squeeze fruit juice of citrus fruits.

Abstract: A scissors has first and second arms with each arm having a finger receiving portion at one end. There is a removable metal blade having an outer edge and an inner cutting edge for each arm. A flange on each arm abuts the outer edge of the respective blade. A pair of inward projections on each flange each has a forwardly extending nose portion and a sloping rear portion and is engaged in a complementary opening in the adjacent blade. A finger extending inwardly from the forward end of each flange overlies a portion of the adjacent blade and is adapted to be engaged by the blade of the other arm when the scissors is in the closed position. A pivot structure passes through the arms and blades securing them together.

Abstract: A triple-edge safety razor in which no portions thereof are disconnected during use. The razor employs a novel blade assembly wherein three individual strip blades are interconnected by a flexible central web affording hinged connections therebetween. A number of methods of manufacture of the blade assembly are described.

Abstract: This invention relates to a safer and better power tool for cutting wood. It combines a power driven bar type chain saw and a work positioning means to make the saw also a tool for moving wood to be cut into a better and safer position for cutting before cutting. There are a very large number of chain saw accidents. These accidents are primarily caused by inexperienced operators cutting wood from an unsafe position. They over-reach and otherwise unsafely cut wood primarily because they don't take the time to set their saw down and with their hands move wood to be cut into a safe position before cutting. They haven't had a tool with them to use for safely moving wood before they cut it. The invention herein makes the bar type chain such a tool in addition to being a saw.

Abstract: The present invention comprises a pair of wheels mounted on a stub shaft, the outer surfaces of the wheels being bevelled to facilitate entering into a kerf. The wheels are mounted in a slot formed in the blade of a woodcutting implement which carries the cutting teeth.

Abstract: A length measuring device which includes a carrier body and a measuring band is provided with fastening components which secure the two ends of the measuring band to respective ends of the carrier body. One of the fastening components is provided with a tensioning device for the measuring band. The other fastening component at the other end of the measuring band is fixed to the measuring band by means of screws. A particular geometry is disclosed which results in a flat, low profile configuration for the second fastening component. Because of the unique shape of the second fastening component, the scanning unit, which is longitudinally slideable in the interior of the carrier body, can be removed from the end of the carrier body past the second fastening component without disassembling or readjusting or disturbing the measuring band.

Abstract: A coupling alignment system for use in aligning coupled, rotatable shaft members. The system includes coupling hubs mounted on the opposed shafts and modified to receive bracket members. A pivotally mounted beam extends from one bracket member to the opposite bracket member or coupling hub, and a measurement indicator, mounted on the bracket member, registers the degree of deflection of the beam relative to the bracket or hub on the opposite side. No shaft access is required, since the brackets are secured directly to the coupling hubs, and the measurement indicator mass is firmly supported by the bracket, minimizing indicator sag. The present system includes angular, radial, and axial bracket mounting embodiments, the system, thereby, greatly facilitating alignment procedures in the field.

Abstract: A device for locating a wheel and tire rim assembly on a right angular plane to the axis of a vehicle's axle by aligning the optical projection from a light source supported on the wheel or tire rim assembly to a remote target with a movable indicator positioned thereon.

Abstract: A boresighting instrument which comprises a muzzle end adapter having a frustro conical outer periphery adapted to be inserted into the muzzle end of a barrel threadably receiving a central shaft, a sleeve is coaxially coupled to the muzzle end adapter and extends to a radially extending member, the central shaft extends to the radially extending plate and has coupled thereto an expandable member comprising a plurality of rigid finger members equiangularly disposed about the axis of the central shaft and secured together by an elastomeric material, the fingers of the expandable member have frustro conical inner edges, an expander member is secured to the central shaft and has a frustro conical surface adapted to engage the inner edges of the fingers whereby when the central shaft is rotated in one direction on the threaded connection with the muzzle end adapter, the expander member forces the fingers radially outwardly into engagement with the inner periphery of the barrel.

Abstract: A spirit level which includes a frame having a hole therein. At least one liquid-containing leveling vial is located in the hole and is preferably mounted in a vial holder having a central opening therethrough. The vial and, where used, the vial holder are fixed to the frame. Extending substantially across the hole is a transparent sight plate held in place by a resilient annular gasket. The gasket includes an angular, annular lip which is sealingly deflected against the sight plate, and a similar lip is sealingly deflected against the portion of the frame forming the hole. The gasket preferably includes a radially outward flange which maintains the gasket in contact with the transparent plate, and which extends into a radial groove around the frame opening.

Abstract: The cost of preserving and transporting food is minimized, to the end that food may be made more widely available. A trailer, movable by a small vehicle, houses a completely self-contained food dehydration plant which can be towed to the field in order to preserve the food as soon as it is harvested. The plant dehydrates by blowing a stream of hot air over the food. In order to conserve energy, the air is preheated both in a solar collector (by sunlight) and in a heat exchanger (by exhaust air). Some air used for dehydration is not exhausted but instead is recirculated through the plant, further contributing to efficiency.

Abstract: A wicking apparatus for drying insulation wet with water, particularly insulation in flat roofing systems and wall systems, is disclosed consisting of a hollow device, capable of penetrating the exterior weather shield or siding to the insulation to create a passageway from the insulation to an external environment where moisture can evaporate, and a wick disposed within the passageway to transport moisture by capillary action from the insulation to the external environment. In retrofit applications, the method resides in penetrating the weather shield or insulation in at least one location and deploying the wicking apparatus to induce drying; in new applications a network of moisture-transporting channels can also be employed within the insulation itself together with one or more wicking apparatuses to further aid in drying.

Abstract: A dryer for uniformly drying a continuous textile fabric comprises a housing for defining a drying chamber, a plurality of guide rolls for the fabric, located in the drying chamber so as to form a zigzag path for moving the fabric, and a plurality of heat-radiating plates. Each plate is located between the sequent guide rolls so as to face the fabric moving path. Each guide roll has a hollow formed therein and connected through a conduit to a water tank located outside of the housing at a level above that of the guide roll.

Abstract: A shoe insole includes a heel portion (12), a mid portion (14) and a toe portion (16). On the under surface of the shoe insole, a cylindrical disc (18) is formed in the center of the heel portion (12). Annular rings (20) and (22) are also formed in the heel portion (12) and concentrically disposed about the cylindrical disc (18). A plurality of arcuate ridges (24) are disposed on the mid portion (14) and constituting arcs of concentric circles radiating outward from said cylindrical disc (18). The cylindrical disc (18), the annular ridges (20) and (22) and the arcuate ridges (24) have essentially the same height and are formed of a highly resilient material such as polyurethane.

Abstract: A fit and support system for sports footwear, particularly for ski boots, comprises up to three separate supports. A lower support is shaped and dimensioned to bear evenly against the dorsal or upper surface of the foot, including the medial and lateral aspects thereof, forwardly of the ankle joint to permit unrestricted dorsiflexion of the foot at the ankle joint within the normal range. The support is sufficiently firm to transmit pressure from the footwear to the wearer's foot to reduce articulation of the bones of the mid-foot during use. An upper support may also be present. This is shaped and dimensioned to bear evenly against the front of the lower leg above the ankle joint. A complementary support may also bear against the lower leg at the rear and sides above the ankle joint. The support system allows proper flexion of the ankle joint while providing firm support for the bones of the mid-foot.

Abstract: A boot includes a first upper having a vamp and a quarter, and a second upper having a vamp and a quarter. The first upper is adapted to encase a wearer's foot; the second upper encases the first upper, and extends upwardly to secure the base of the leg. The first and second uppers are secured to a sole of the boot.

Abstract: An athletic shoe, particularly for running and jumping, including an upper sole, a separate lower sole beneath the upper sole and a leaf spring of approximately the width of the shoe connecting the upper and lower soles. One end of the leaf spring is fastened to one end of the upper sole, such as the front end, while the other end of the leaf spring is fastened to the opposite end of the lower sole. The opposite surfaces of the upper and lower soles facing the spring may be arcuately curved. The spring may be arcuately curved. The upper sole may be fastened to the shoe over the entire length of the upper sole or only at the front of the shoe, e.g. at a joint. Additional springs may be disposed between the upper and lower soles.

Abstract: A garden row marker comprised of a clear plastic hollow body defining an interior display chamber, and a stake means depending from said hollow body and being integrally formed therewith. The hollow body has an upper open end with a peripheral lip adapted to be snap-engaged by a sealing cap formed, preferably, of a brightly colored opaque plastic. The marker allows for the visibility of a seed package stored within the display chamber from all sides therearound.

Abstract: A check-out counter divider. The counter divider includes an elongated hollow body defining an elongated opening and having a plurality of faces which are at least partially transparent to visible light for displaying advertising positioned within the opening from all faces of the divider. Removable closures on each end of the body allow easy replacement of the advertising within the body. The closures are skid-resistant and a weight is disposed within the body so that the counter divider resists rolling and displacement.

Abstract: A device for a casting float of the kind through which passes a hole in which the line may run and with a chamber (2) which is open to the front and which forms an extension of the hole (3). This chamber (2) is dimensioned so that it will house the hook with its bait, livebait, flies or similar, and a sinker, where used. A stop which will prevent the line (5) from passing completely through the hole is attached to the line (5) above the float (1,3). A spool (7) is attached to the end of the line. The external dimensions of the spool match the chamber (2) and the spool is designed to be placed inside the chamber before the cast is made. Attached to the spool are one or more snells (16) with fishing-tackle in the form of, for example, a hook (17), flies, livebait or similar. The snells (16) are designed to be wound onto the spool during the cast. The spool may be used as the sinker, being made from a heavy material such as lead.

Abstract: A method for treating pests and insects by combining an anesthetic and an insecticide into a mixture, and applying the mixture to the dwelling place of the insect or pest.

Abstract: A plant support in which a wire loop plant support is adjustably supported in cantelever fashion from a post at fixed positions on the post by a post coupling structure including at least one terminal end of the wire being formed as a projection integral with the wire loop for piercing or otherwise entering the post and a reaction bearing member also integral with the wire loop but at a lower level than the integral projection so that downward acting plant loads on the cantelever plant support urge the reaction bearing member against the post and the projection into the post. The spacing between the sharp tip of the projection and the bearing member is sufficient to permit the integral post coupling structure to slide down the post to any selected position and, pivot to a horizontal loop position about the reaction bearing member.

Abstract: A wire mesh basket is disclosed which features a convertible, removable handle arrangement for permitting the basket to be used either as a tote for potted plants, floral arrangements or the like or as a display stand. For displaying or toting heavy loads a carriage bottom is described, and for stacking several baskets a foldable wire mesh cover is disclosed. The basket may be used as a planter with an appropriate plastic or ceramic liner or as a window box with the use of window sill hooks.

Abstract: A revolving door system has a central axis defining a center shaft and three wing hangers rigidly joined and extending in a equidistant spaced apart relationship about the center shaft's upper portion.A pair of facing substantially semicircular walls, spaced apart to define regions of ingress and egress, partially surrounds the wings and shaft on opposite sides.The system allows free passage of persons in an authorized direction while preventing, and driving out, intruders attempting to pass in an unauthorized direction. If an intruder enters the system in an unauthorized direction, the door stops before the intruder has free passage to the other side, reverses direction and forces the intruder back toward the entrance. In one configuration, the door then rotates in its forward direction to permit the authorized passenger to escape the system, but not far enough to allow the intruder to pass. In another configuration, the reversal of the door allows the passenger to escape from the side in which it entered.

Abstract: A rectangular frame set into the concrete surround at the head of a shaft supports one or more slab doors that are hinged to the frame. Adjacent each hinge line brackets fixed to the frame support a fixed spindle upon which a helical spring is secured. The spring has an extending limb at one end that bears against the under surface of the door. The other end of the spring is engaged with a winding bushing rotatable on the fixed spindle, and the bushing has a hollow hub for accepting a detachable winder so that the spring may be pretorqued to the proper loading to raise the door from its horizontal closed position to a substantially vertical attitude for access to the shaft or other opening.The frame defines a drip trough to collect moisture passing the door edges and when two doors are used a channel extending along the butt line of the doors collects water passing between the adjacent edges of the doors.

Abstract: A machine for superfinishing the inner race surface of annular workpieces such as bearings with two honing stones of different grain sizes held by a common holder arm. Structure is provided for reciprocally arcuately moving the holder arm perpendicularly of the plane of rotation of the workpiece. Structure is also provided for moving the holder arm in a direction generally perpendicular to the axis of rotation of the workpiece toward and away from the inner race surface. A lever mounted on the holding arm is selectively engageable with either of the two honing stones pressing the selected honing stone toward and against the inner race surface.

Abstract: A machine for sharpening the blade of an ice skate has a vertically mounted, thin grinding wheel with a convex transverse cross-section corresponding to the concave transverse cross-section desired for the blade edge. Clamping plates on a cradle hold the blade above the wheel with their central planes coplanar and with the wheel biased against the blade. The cradle is pivotable about a horizontal axis above the skate so that the skate can be swung in an arc. Hence the movement of the blade over the wheel takes place in an arc that is curved in the same direction as the convex profile of the blade edge. This action reduces the problem of unevenness of depth of cut along the length of the blade, that has been experienced with prior machines employing straight line relative travel between the skate and the wheel.

Abstract: A machine is provided for in-situ grinding of tapered lugs on a hatch, such s a hatch aboard a submarine. A base is provided and a device is attached to alternate lugs of the hatch for mounting the base across the hatch opening. An elongated plate is mounted at its center to the base for pivotal movement thereon. The pivotal plate has opposite ends wherein each end is extendable between a pair of alternate lugs, one of the lugs between one of the pair of lugs being a lug to be ground. A device is mounted on the base for oscillating the pivotal plate back and forth between the lugs of each pair of alternate lugs. A grinder is provided, and a device is utilized for mounting the grinder at one end of the pivotal plate for selectively engaging the grinder with or backing the grinder away from the lug to be ground. With this arrangement a lug can be ground by oscillating the pivotal plate and engaging the grinding means with the lug.

Abstract: An information generating stylus to regenerate an information signal on a stylus base on which an electrode is applied as a variance of electrostatic capacity in conjunction with a running disc recording medium in which the information signal is recorded as a variance in a geometrical shape and a manufacturing method thereof, which comprises forming a prism with a part of the side on which said electrode is provided working as one side therefor on a tip of the conical or pyramidal stylus base with the electrode formed on one side, forming a sliding face with the disc recording medium on a tip of the prism.

Abstract: A method for generating patterns progressively changing in configuration from circular through eliptical and oval and inclusive of rectilinear traces is effected by constraining a stylus to movement along mutually othogonal axes, by generating plural sets of stylus displacement forces and by applying such forces in combination to the stylus. The stylus displacement force sets vary with time in respective magnitudes and senses to compel stylus movement progressively in such circular, eliptical, oval and rectilinear patterns. In use of the pattern generating method for surfacing of an optical element, a surfacing tool in engagement with the optical element is displaced as the stylus and the optical element may itself be subjected to oscillatory movement.

Abstract: A nail file comprises:(a) an elongated holder having an elongated handle,(b) a resiliently flexible sheet having an abrasive surface,(c) and clamping structure on the holder retaining the sheet to the handle so that sheet loosely wraps at least partly about the holder with a gap between the sheet of the holder, whereby the sheet wrap when pressed against a fingernail assumes the contour of the fingernail, the sheet wrap being elongated in the direction of the handle.

Abstract: Sandblasting machine which includes a container for the sand, the bottom end of which is in communication with a sand flow-regulating valve, in turn communicating with a mixing chamber for the compressed air and sand. The outlet of said mixing chamber consists of the inner end of a hose serving to feed the air-sand mixture to the sandblasting nozzle. This inner end of the hose forms a valve seat, which, in conjunction with a ball member, forms a shut-off valve for the sand and air mixture. This shut-off valve is operated by a pneumatic cylinder remotely controlled at the sandblasting nozzle. The inner end of the hose may easily be periodically cut when the abrasive action of the sand wears it out.

Abstract: Annular slab for closing the vessel of a fast nuclear reactor, comprising at least one downwardly divergent frusto-conical sleeve coaxial with the inner and outer sleeves delimiting the slab, dividing the slab envelope into upper and lower parts respectively filled with concrete incorporating metal reinforcements and with concrete for radiation protection.

Abstract: A supporting framework is formed by an arrangement including closed longitudinal frames (3,9,12,14) integral with base beams (16A) forming support and sliding runners, with a floor panel (9), a roof panel (14), and end walls (10,12), all defining a usable space. Along lower longitudinal axes are pivoted, on each side, panels (40) foldable for lowering and panels (34) foldable for raising, which are adapted to form respectively a flooring and a roofing, together with panels (44) adapted to form longitudinal vertical walls for additional spaces, which are adapted to be supported by adjustable legs (24) on the ground. To the end walls (10,12) are vertically pivoted panels (30) adapted to open out to form vertical walls completing the additional spaces.

Abstract: A roof covering for greening an inclined roof comprises a water-impermeable roof skin, a holding structure placed loosely on the roof, holding projections distributed on said holding structure and engaging in a plant-carrying layer, a tension-resistant filter layer beneath the holding projections, and a drainage underneath said filter layer and having distributed spacers in contact with said filter layer.

Abstract: Apparatus for controlling the moisture in the ground surrounding a building comprising a circumferential conduit extending around the building approximately ten inches below the ground level and from six to twenty-four inches away from the foundation of the building. The circumferential conduit is composed essentially of porous flexible hose capable of permitting seepage of water from the inside of the hose to the outside thereof through the pores of the hose when water under pressure is fed into the interior of the hose. A supply conduit connects at one end to a water main, and at its other end through an on-off valve, a pair of check valves connected in series, a pressure regulating valve for reducing the pressure from the water main to about 1 to 5 psi, to a terminal conduit for conducting water under 1 to 5 psi into a tee connection in the circumferential conduit.

Abstract: A bomb shelter which is intended to be used as an underground storage celler in peacetime. The bomb shelter consists of a cylindrical body of fiberglass-reinforced plastics, on which body are provided peripheral and lengthwise stiffening members. The body is made up of two sections which are interconnected by a sealed joint. The bomb shelter has one forwards end wall and an inner end wall, each one with its separate door. The bomb shelter is partly buried in the ground and covered by insulating material, which in addition to having a protective effect also provides insulation for the underground storage celler.

Abstract: An attachment device for securing a flexible sheet within a channel member via an insert member of generally inverted V-shape wherein the latter is made of a ductile but rigid material having a central longitudinal portion of reduced rigidity that serves to define two adjacent wing portions and permits the subsequent plastic deformation of the insert member into its installed shape after its insertion, together with the flexible sheet, into the channel member. A method for securing the flexible sheet within the channel member, via the ductile but rigid member, is also presented.

Abstract: The invention relates to an improved partition panel structure. The structure comprises a framed panel member, the vertical frames of which include extended locking members snap-on facings cover the open outer surface of at least the vertical frames. The snap-on facings have an opening for allowing the locking member to pass through and slots on each upper side surface end for engagement with the ends of the horizontal frame members. This slot engagement, and the upper surface engagement of the locking member with the opening through the snap-on facing prevents relative movement between the snap-on facing and vertical frame member. A post or upright includes openings through its vertical surfaces for engagement with the inner angled surface of the downward extending distal end of the locking member. When assembled the components form a rigid reusable locked together panel partition structure.

Abstract: A duct molding for cables is provided for securely and efficiently mounting cables on the outside portion of a wall and/or ceiling. The subject duct molding includes an elongated tubular duct molding portion having a base and cover which can be at least partially disassociated from one another to provide access to the cables. Cables retaining clips are mounted on the base on the inside portion of the tubular duct molding. Each cable retaining clip includes a plurality of recesses formed by spring fingers which can removably retain individual cables. Expansion modules can be mounted in recesses of the cable retaining clip to expand the cable retaining capacity of the subject duct molding. Duct molding corner members are provided to enable mounting of the subject duct molding against sections of wall or ceiling that are angularly related to one another.

Abstract: The present invention of an adjustable roofing support spacer relates generally to the re-roofing construction area and more particularly to an adjustable roofing support spacer apparatus for use in conjunction with a roof system positionable over a preexisting roof, the roof system having at least one roof panel member, the adjustable roofing support spacer comprising a beam assembly having a first beam spatially disposable above the preexisting roof, one or more adjustable web assemblies connectable to the first beam, and an adjustable roofing support spacer connector means for connecting the adjustable support spacer to the preexisting roof.

Abstract: A bag tying machine comprises a guide (17, 18) which receives the open end part of a filled bag as it is moved through the machine, a follow-up member (29) which is movable adjacent the guide (17, 18) following a bag to gather together the open end of the bag, and means (39, 40, 43) for supplying a length of pressure sensitive adhesive tape and holding it across the path of the gathered together end of the bag. The machine also includes a pair of pivoted arms (20, 21) having a first pair of jaws (30, 31), upstream from the length of pressure sensitive adhesive tape and against which the gathered together end of the bag is initially compressed, and a second pair of jaws (34, 35) immediately downstream of the adhesive tape which support the adhesive tape as the gathered together neck of the bag is urged into contact with it and which then clamp the adhesive tape around the gathered together neck of the bag to tie it together.

Abstract: A block-like tool has a hole in its upper surface and contains a hollow needle projecting at one of its ends into said hole and opening at its other end to the atmosphere. Said hole is disposed removably to receive and stably support therein the lower end of an empty, tubular ampule, which is hermetically sealed at its lower end by an elastic diaphragm. Said needle pierces said diaphragm when the ampule is mounted on the tool, whereby the interior of the ampule is also brought to atmospheric pressure through said needle thus enabling the withdrawal of an elastic plug from the ampule, and the refilling of the ampule with a solid alginate without encountering pneumatic resistance.