Abstract: A game call, operable to simulate an elk call, including a whistle having a longitudinal bore and a top vent and provided with a mouthpiece and a hollow open-ended tube of flexible material in fluid communication with the bore of the whistle. The flexible tube is preferably attached to the whistle by means of an adapter which is mateable with a second adapter attached to the free end of the flexible tube to protectively enclose the whistle. The two adapters, when mated, form a convenient handle for carrying. The flexible tube is provided with a spiraled inwardly projecting rib and is of sufficient resiliency to be doubled back upon itself in substantial O-shaped configuration for varying pitch during operation and for convenient portability.

Abstract: A water reservoir defining plant container that has a manually actuated pump operatedly associated therewith, which pump when actuated by the user discharges a fine mist or spray on the soil and plant situated in the container. The container has ports in the lower portion thereof through which excess water in the soil in the container may drain into a shallow dish situated below the container. The dish is preferably in removable engagement with the container, to prevent inadvertant separation of the container and dish, when the container is moved from a position it normally occupies.

Abstract: A drive arrangement for interconnecting a driven tape and a vehicle body window includes a drive block having a row of barbs hooked through the perforations of the tape with the ultimate barbs facing oppositely of each other and with one of the ultimate barbs being longer than the other to accept greater loads. The drive block includes a tapered pin received within an elongated slot of a window drive member to provide a separable connection accommodating relative separation movement of the members during window movement. The drive block further includes a flexible finger engaging the window drive member to resist concomitant relative rotation of the members upon separation thereof.

Abstract: An abrading machine having a main body of elongate shape with an abrading belt extending therealong and supported by rolls adjacent each end of the main body. A roll mounting assembly in place on the main body carries one of the rolls and is normally in a spring biased position to assure proper belt tensioning. The mounting assembly includes a roll carrying spindle and a spindle adjustment for purpose of proper belt tracking on the roll. The mounting assembly also includes a roll release lever for temporarily retracting the roll during belt replacement. The main body of the machine defines laterally orientated openings facilitating belt removal. A power output shaft is coupled to one of the belt carrying rolls and further powers an abrading disk affixed to the shaft end. A tool bed is offset from the disk.

Abstract: A continuous abrading belt means and method for manufacturing an improved mowing machine of the type which includes a bed knife, a cylindrical rotary knife which, in turn, comprises a plurality of generally elliptical discs mounted parallel to each other on a shaft, and means for rotating the cylindrical knife construction in peripheral contact with the bed knife is disclosed.

Abstract: A technique for positioning a stone utilizes a pencil comprising a shaft having at one end a handle and at the opposite end supporting means adapted to hold a stone upon the application of a closing force thereto. The shaft has apparatus for adjusting the length thereof, and a housing fitted over the shaft between the ends thereof in a manner allowing the shaft to be frictionally rotated therein. The housing has apparatus for applying the closing force, disposed at one end thereof adjacent the supporting means, and is adapted to provide the closing force when the shaft is moved longitudinally along the housing.

Abstract: This invention relates to an inflatable air celled tent in which the body of the tent consists of a series of air cells each of which has a one way valve, so that if any one of the cells is punctured the entire tent will not collapse.

Abstract: An extruded aluminum termination bar adapted for use on roofs for securing the flexible roof membrane in proper position and for securing a metal facing to the membrane where such membrane extends a distance down the side of the roof. The termination bar being reversible, one side being outermost when the bar is utilized for securing the above mentioned metal facing in place and the other side of the termination bar being usable for application to the membrane for holding it in place on a parapet. This side of the termination bar being usable when the membrane extends upwardly a distance along a parapet which extends above the body of the roof. The termination bar having a body portion one surface of which is ribbed and a flange extends at an angle relative to said body portion. The other side of the termination bar providing ribs along one longitudinal edge of the body and also providing ribs along the longitudinal edge of the flange.

Abstract: A movable greenhouse construction adapted for use on a balcony or a patio having means for moving the greenhouse laterally parallel to the building wall containing a balcony door or patio door to permit direct access from the building to the interior of the greenhouse. After use, the movable greenhouse can be moved laterally out of the way to free the balcony or patio door for unobstructed access from the building to the balcony or patio and flush with the exterior of the building structure or closed balcony or patio door.

Abstract: A foundation insulating skirt comprising a sheet of insulating material to be placed in contact with the outside perimeter of a foundation, and an outer protective shield for the panel. The protective shield is configured so as to cover the top edge and the outside surface of the sheet. The invention has utility as an insulating skirt for the outside of the footings of floating slab constructions and the like. An embodiment of the invention may be employed as the outer pouring form for said footings thereafter the form is left in place, as an integral part of the footing. The insulating skirt is at least in part held in place by the earth which is back filled against the footing and which bears against and supports the lower portion of the insulating skirt.

Abstract: A composite module (14) is formed by a specially constructed mold (65) and division plate (80) to form plural splitting planes (28, 31, 33, 51, 54, 56) in the composite module which is thereafter split by a series of knives (114-116, 121-123, 126, 127) aligned with such predefined splitting planes to split the module into plural blocks (12, 13) each having plural irregular decorative surface areas (25, 26, 27; 48, 49, 50) having different widths (35, 37, 39; 58, 60, 62) and depths (30, 32, 34; 52, 55, 57). Such split-type decorative areas within a course (131) are aligned out of vertical alignment with decorative areas of other blocks in adjacent courses (130, 132) to form a decorative wall (134).

Abstract: An adjustable window installation frame for installing a new prime window unit in an existing window unit opening includes a top channel, bottom channel and opposite side channels. The bottom channel and side channels are connected to the new sill and new side jambs of a new prime window unit and the top channel is extended between the upper ends of the side channels. Each channel includes an inner wall extending exteriorly of the new prime window unit for recessing it relative to the frame and an outer wall extending outwardly from the new prime window unit. The outer walls are provided with a plurality of spaced apart slots for reducing the width of the channels to fit various window sizes.The method of the invention includes connecting the bottom channel and side channels to the sill and side jambs of a new prime window unit, connecting the top channel across the upper ends of the side channels and placing the preassembled new window unit and channels into a window unit opening.

Abstract: A skylight construction and method of making same are provided wherein such construction comprises, a support, an outer sheet made of a light-transmitting material and having a peripheral portion adjoining the support, and an inner structure made of a light-transmitting material and having a peripheral edge portion attached to the support defining a first air space between the outer sheet and the structure with the inner structure comprising a pair of inner sheets each made of a light-transmitting material and with the inner sheets being held in spaced relation defining a second air space therebetween such that the sheets and first and second air spaces enable provision of the skylight construction having minimum weight yet providing minimum heat loss in winter and minimum heat gain in summer.

Abstract: A glazing bead adapted to secure a second, larger thickness of insulated window in a window frame designed to normally receive a first, smaller thickness of insulated window. The glazing bead comprises a plastic extrusion having a resilient, arcuate wall member which engages the window and/or the window frame. Extending outwardly from the wall member is a folded leg member which is inserted between the window and the window frame, thereby compressing it and urging a locking flange on the folded leg member into engagement with the glazing lip on the window frame to secure the glazing bead and the window in place in the window frame. When the glazing bead is snapped into place, the arcuate wall member is compressed and thus resiliently urges said locking flange laterally towards and into engagement with said glazing lip on said window frame. This compression of the resilient wall member also tends to effectuate a seal between it and the window.

Abstract: A building block system comprised of three basic blocks. A first block has the shape of a rectangular prism and is of a more or less standard cinder block design. A second block has a main body portion that is similar in size and shape to the first block. The second block also includes a pair of spaced apart, mirror image protrusions that extend outwardly from one of the vertical faces of the main body portion. The protrusions define a vertical channel that is laterally centered on the second block. A third block also has a main body portion similar in size and shape to the first block. The third block also includes a pair of spaced apart protrusions extending from one of the vertical faces of its main body portion. The protrusions on the third block are laterally offset to one end of the block. The blocks can be stacked together end-to-end and in courses to form rigid, load-bearing structures.

Abstract: An adjustable patch support to repair a hole in drywall type hollow walls.The support attaches quickly, in a novel manner to the drywall wall material, firmly supports and integrates the patch to the wall. The support is adjustable to accommodate a patch of varied perimeters.Most importantly, since drywall is manufactured in three standard thicknesses, the support is also adjustable to integrate a patch of any standard thickness to a drywall wall of any standard thickness.

Abstract: There is disclosed a system of fixtures for use with standard dimension lumber for constructing pitched roofs for residential or commercial wood frame structures including gabled roofs, hip roofs and more complex roof structures. One form of sheet metal fixture takes the uncut ends of a pair of two inch (nominal) thickness lengths of lumber and is so shaped that the two lengths of lumber are joined with the fixture and common nails at a selected angle corresponding to the desired angle between rafters at the peak of a gabled roof. Other disclosed fixtures are shaped to join a hip rafter with one or more common rafters or jack rafters. Similar fixtures are used to join valley rafters with jack rafters. Further plate fixtures secure the lower ends of rafters to the plate on top of the exterior wall frame without the necessity for an angle cut or bird's mouth cut in the rafter.

Abstract: The frame girder for underground drift construction comprises three or more retainer bars (3a, 3b) whose cross sections form a polygon, the retainer bars being affixed to one another by stiffener elements (4). Each stiffener element (4) comprises a number of cross struts (5) bent in their centers and inclined with respect to the retainer bars. The outer ends (9) of the struts (5) are each attached to one of the retainer bars. The stiffener element may be formed symmetrically with respect to a central plane extending obliquely to the retainer bars. The frame girder may be made from conventional round irons. It resists bending, torsion and buckling at very high loads, and no undesirable injection shadows are produced during concreting.

Abstract: The bottom flutes of a fluted deck or diaphragm of a building are fixedly attached to a horizontal load bearing member supported by vertical load resisting members. A load translation member precludes relative movement between the top flutes en masse and the bottom flutes en masse. By precluding relative movement of the top and bottom flutes, the shear loads imposed upon the diaphragm by earthquakes and/or high winds are translated throught the load translation member and the load bearing member to the vertical load resisting members.

Abstract: A prefabricated building of symmetrical polygonal shape secured onto a concrete slab and symmetrical about a vertical central axis, the building having vertical columns in each polygonal corner and the columns being joined by perimeter beams extending therearound parallel to the slab to form a substantially closed main framework. The building further includes roof beams supported entirely by the columns and extending diagonally upwardly and inwardly to an apex member which joins them. The columns have connectors attached to them to receive the ends of the perimeter and roof beams which comprise two C-shaped members disposed back-to-back with their webs slightly spaced by internally mounted spacers. Prefabricated side and roof panel members enclose the framework, and are made thick enough to hide the beams and the columns and to lap each other to form an inclosed structure.

Abstract: A dual pressure closure clipping system for use on chamber evacuators used in vacuum packing articles in flexible plastic bags provides high pressure for small bags and low pressure for large bags closure clipping actions, selectable according to evacuation times.

Abstract: The present invention discloses a method for containerizing asphalt in a plurality of manually handleable packages.

Abstract: A cotton harvester (10) is provided with several independently hydraulically adjustable header units (16) that are movable in unison or completely independently responsive to ground plane elevation. A rotary flow divider (30) is positioned between a manual control valve (32) and the header units to control synchronous movement of the units. A plurality of one way check valves (44 and 104) are positioned between the manual control valve and the rotary flow divider (30) and the header units respectively for prioritizing fluid flow from the manual control valve to the adjustable header units.

Abstract: A rock trap for a farm vehicle such as a combine or the like removes rocks from crops being harvested thus preventing rocks from entering the threshing area of the combine. Crop material is fed through a feeder house toward a drum and all the crop material moves under the drum. Rocks are forced by the drum into a storage trap. The crop material is then fed to the threshing area. The storage trap opens when full to drop the rocks on the ground and the storage trap also opens when a large rock is forced against the trap by the drum. Thus the rocks which enter the feeder house do not reach the threshing area of the combine.

Abstract: A release mechanism for a combine stone trap latch is disclosed wherein the detection of a stone in the crop feed path by either electronic or mechanical detection mechanisms can trigger the release of the latch from a trap door to permit the stone to be ejected from the feed path. The mechanical detection mechamism includes a pinch roller rotatably mounted on a bearing plate above the trap door for movement to selectively vary the distance between the pinch roller and the trap door. A trip link operatively associated with the electronic detection mechanism is pivotally mounted on the bearing plate to maintain a fixed positional relationship between the trip link and a cam member affixed to the pinch roller whenever the pinch roller is positionally adjusted.

Abstract: A trip mechanism, cooperable with an electronic stone detection device on a combine, is disclosed wherein, upon the reception of a signal from the electronic stone detection device indicating that a stone has been detected in the feed path of the crop being harvested, the trip mechanism is operable to effect an unlatching of the trap door to permit the stone to be ejected from the feed path. The trip mechanism includes a solenoid for receiving the signal from the electronic stone detector and for engaging a trip link with a rotating cam member. The cam member causes the trip link to engage a release mechanism which disconnects a latching device from the trap door so that it can move to an open position.

Abstract: A latch mechanism for the trap door of a combine stone detector is disclosed wherein the latch mechanism is operable to release the trap door for ejection of a stone or other non-crop foreign matter from the feed path of the crop being harvested when the foreign matter is detected either electronically or mechanically. A release mechanism is provided to unlatch the trap door when a pinch roller forces foreign matter downwardly against the trap door. A trip mechanism is operatively connected with the release mechanism to unlatch the trap door when a signal is received from the electronic detection mechanism.

Abstract: A control system (20) for an outdoor power equipment unit (2) includes a control member (22) pivotally mounted on the housing (4) of unit (2). Control member (22) rotates in a first direction from a neutral position to a first position in which a brake and clutch drive is actuated to a second position in which a traction drive for housing (4) is actuated. A latch (60) stops rotation of control member (22) in the first position since the clutch comprises a selectively operable drive motor (6) and the first position is the proper position for starting the drive motor (6). Latch (60) is releasable to allow continued rotation of control member (22) to its second engaged position.

Abstract: Lawn mower (2) includes a housing (4) having at least one cutting chamber (22 or 24) in which a flexible line cutting element (8) is rotated by a motor (76). Sails (80) located on cutting element (8) are configured to generate an air flow in the cutting chamber (20 or 22). This air flow is directed to a discharge outlet (38) in the housing (4) which causes the cut grass particles to be deposited in a grass collector (14). Grass collector (14) includes air discharge outlets (94) which evacuate the air flow from the grass collector (14) to ensure proper deposition of the grass particles therein. Sails (80) are preferably flexible so as to be incapable of severing a body member accidentally placed into contact therewith. An improved sail (240) radially outboard of a support disc (224) overlies flexible lines (226 and 228) to give better agitation of the vegetation in yet another embodiment.

Abstract: A filament-type vegetation trimmer has an electric motor, a head rotatable by the motor, and a supply of a filament in the head, with the filament extending from the head, whereby on rotation of the head by the motor the extending filament section can cut vegetation. The trimmer further comprises a circuit for detecting the current consumption of the motor and for generating an actual-value output corresponding thereto, an actual-value generator for generating a set-point output corresponding to the current consumption of the motor when the filament is extending from the head by less than a predetermined distance, and a comparator for comparing these outputs and generating a signal when the actual-value output is less than the set-point output.

Abstract: A reel type mower (2) has a rotatable cutting reel (4) and a cooperating bedknife (8). A control system (30) automatically positions the bedknife (8) relative to the cutting reel (4). An electrical potential is normally maintained between the bedknife (8) and reel (4). The control system (30) monitors this electrical potential and counts the number of times the electrical potential disappears during a predetermined time interval. If the counted value is different from the reference value, an actuator (32) turns an adjustment shaft (42) to change the position of bedknife (8) relative to reel (4).

Abstract: An improved direct-loading crop harvester for vine crops is disclosed as having a shaker head capable of being rotatively oscillated about its axis and having tines adapted to engage the vines of the crop to be harvested. A support conveyor is provided to support the vines while the tines of the shaker head shake the fruit therefrom. A collector conveyor is provided to collect the fruit as it falls from the vines and to transport the fruit for further processing.

Abstract: An apparatus for cabling wires into a predetermined stranded configuration has at least one first pay-off bobbin rotatably supported inside a carrier, in its turn freely rotating inside a cage-type device and coaxial with it.The cage is supported to rotate about its own axis.Part of the wires constituting the produced cord can be drawn through the apparatus coming from a second, external to the apparatus, pay-off bobbin.The carrier comprises means for guiding the wires along a path developed from one extremity and/or from the first pay-off bobbins to the other extremity of said carrier, said path being not coincident with the axis of the apparatus, and means, disposed along said path, for permanently deforming the wires by bending.

Abstract: A multifilamentary polymeric yarn capable of undergoing false twist texturing is passed through a friction disc aggregate under conditions (as defined) which produce periodic slippage with respect to the friction disc aggregate whereby recurring relatively tightly twisted areas measuring approximately 0.125 to 1.25 inch are substantially maintained along the length of the yarn intermediate recurring textured areas measuring approximately 0.125 to 1.25 inch which include a twist in the opposite direction. The feed yarn may be either partially oriented yarn or a drawn yarn. In a preferred embodiment the feed yarn is a partially oriented polyethylene terephthalate multifilamentary yarn. Unmodified texturing machinery can be employed. The resulting yarn is space textured and may be utilized to form a crepe fabric having highly desirable aesthetic characteristics.

Abstract: An afterburning turbofan engine includes amixer for mixing the engine generated hot gas and fan streams prior to discharge through the engine nozzle. The mixer includes a fixed upstream portion and a movable downstream portion which may be indexed to selectively interchange flow communication between the chutes of the two portions to effect a temperature reduction in the downstream mixer portion and, hence, a reduction in infrared radiation.

Abstract: A device for removing fine carbon particles from exhaust gas emitted by automobile diesel engines or the like thereby to clean the exhaust gas. The device incorporates a filter for collecting fine carbon particles suspended by the exhaust gas. After a predetermined amount of fine carbon particles is accumulated on the filter, the carbon particles are burnt to regenerate the filter. The detection of amount of carbon particles accumulated on the filter is made through the detection of the fuel consumption of the engine or the differential pressure across the filter.

Abstract: An exhaust gas pressure reducer for an internal combustion engine which is comprised of a housing having means for attaching the housing to the end of the exhaust pipe. The housing has one or more venturi restrictions and is open at the ends for creating a draft across the end of the exhaust pipe through the venturi and out the opposite open end of the housing. The open exit of the housing reduces pressure at the exit to the venturi assisting drawing exhaust gases from the exhaust pipe.

Abstract: A device for producing fresh water from salt sea water by utilizing the hydrodynamic energy of waves, comprising a buoyant platform; means for mooring the platform; a pump connected to the mooring means; a reservoir for pressurized sea water; a desalination system for extracting fresh water from the sea water; hydraulic flow control means for causing the pump to pump sea water into the sea water reservoir, as motion of the buoyant platform is produced due to the passing of waves beneath it; measuring means for measuring parameters of the sea adjacent the buoyant platform; and a control device connected to control the pressure in the sea water reservoir and the flow of sea water from the reservoir through the desalination system in response to the parameters of the sea.

Abstract: The displacement controllers of a first variable displacement pump supplying fluid for hoe and travel functions of an excavator and a second pump supplying fluid for the excavator house swing function are connected to shuttle valves which operate to couple to the controllers the lesser of the power beyond fluid pressures emanating from travel function and swing function control valves. A bypass circuit is arranged to couple power beyond flow from the swing function control valve to join the flow being outputed from the first pump when the pressure of the last-named power beyond flow exceeds the lesser of that emanating from the travel control functions. Lead compensators are provided to make the controllers more responsive to circuit demands and a power limiting valve is provided for automatically connecting pressure for destroking the pumps to relieve engine load when the engine speed falls to a predetermined minimum.

Abstract: A solar converter is disclosed which has particular applicability at the focal point of a parabolic concentrator. The converter absorbs solar thermal radiation in a cavity type receiver and transports the heat via a secondary fluid to a heat exchanger which contains a primary (i.e., working) fluid used for process heating or to power a heat engine employing either Stirling, Rankine, or Brayton thermodynamic cycles. The secondary fluid is boiled within the receiver by the trapped solar radiation and the released vapor rises along an elevated path to the heat exchanger. The vapor condenses on the surfaces of the heat exchanger, thereby transferring heat to the engine working fluid. The condensed liquid then flows by means of gravity back to the solar receiver. The walls of the cavity receiver are typically comprised of two concentric cylinders joined at one end in a half toroid and at the other end in concentric half spheres.

Abstract: Refrigerating system including a first refrigerator and a second refrigerator. The second refrigerator comprises a compression piston-cylinder assembly and an expansion piston-cylinder assembly which are connected together through a conduit having a heat radiator and a cold-accummulator to effect a stirling refrigerating cycle. The heat radiator of the second refrigerator is in heat exchange relationship with a cold head of the first refrigerator. A pre-cooling device is provided for transmitting heat from the cylinders of the second refrigerator to the first refrigerator.

Abstract: An engine-driven refrigeration unit includes a first heat exchanger functioning alternatively as a refrigerant condenser or as a refrigerant evaporator. When the heat exchanger is functioning as a refrigerant evaporator the heat transfer medium furnished thereto for providing a source of heat to vaporize the refrigerant is preheated by absorbing heat from a relatively warm fluid employed as the cooling medium for the engine driving the refrigeration unit.

Abstract: A falling film freeze exchanger having a plurality of spaced apart vertical freeze tubes secured in, and penetrating, an upper and a lower tube sheet; a shell around the tube sheets and connected thereto; a header surrounding and joined to the upper part of the shell and extending above the top tube sheet and laterally outwardly from the shell; means to deliver a liquid process feed stream into the header; and a layer of insulation surrounding that part of the shell surrounded by the header.

Abstract: A check valve within a closed loop refrigeration system isolates the evaporator from the helical screw compressor. A normally open, solenoid operated valve is positioned within an unload line having one end coupled to a drive cylinder outboard chamber to the side of the piston opposite an inboard chamber which opens to compressor discharge pressure. The other end of the unload line is connected to the system low pressure side, downstream of the check valve. The same drive cylinder outboard chamber opens via a load line to the system high pressure side through a normally closed solenoid operated valve. Upon compressor shut down, the outboard chamber is vented to the system low pressure side, while the opposite side of the unloader drive cylinder piston sees the compressor high side, thus driving the slide valve to full unload position and eliminating the coil spring normally needed to drive the slide valve to that position.

Abstract: An apparatus for freezing confection material includes a plurality of separate mold strips which are indexed in a closely spaced single file over several longitudinally spaced, transversely extending rows of nozzles. Coolant is forced upwardly from the nozzles in single vertical jets which impinge perpendicularly against the mold strips midway between adjacent mold cups. The mold cups are arranged with their wide side faces extending in their direction of travel, and the single jets of coolant impinge upon support wall portions of the mold strips which extend transversely between such opposing wide side faces. The mold strips have intermeshing end wall configurations that enable the coolant to be continuously sprayed without concern that the coolant may be injected upwardly between the strips to contaminate the confection material within the mold cups.

Abstract: Quick-freezing of food products in liquid or paste form is achieved by mixing the food with an excess of carbon dioxide snow. A finely divided carbon dioxide snow bed is formed in situ by stirring and then there is brought into contact with the resultant bed of carbon dioxide snow particles the food product in a paste or liquid state, divided on contact with the snow, until the granules of the food product are formed. The apparatus is applicable in the industrial food field and for making of products intended for home consumption.

Abstract: A lawn trimmer has a tubular shaft assembly which structurally and drivingly connects an upper power head to a lower rotary tool head in a lawn-trimming tool. The assembly includes a bent portion to dispose its opposite ends at an angle to each other, and comprises an outer frame shaft of relatively large diameter and structural strength and an inner sheath tube of relatively smaller diameter formed of rigid but bendable tubing extending coaxially of the frame tube. The sheath tube is supported over the bent length of the assembly by a continuous semirigid bushing, and its lower end is held coaxial with the lower end of the frame tube by a substantially rigid bushing. The lower end of the frame tube, beyond such rigid bushing, is expanded to form a sleeve of enlarged diameter and predetermined length, and an arbor assembly is mounted in such sleeve and consists of a pair of ball bearings mounted by their inner races on the arbor and having their outer races supportingly received in the sleeve.

Abstract: A disc is centered and secured on a shaft by means of flexible webs which extend parallel to the shaft and lie against the inner surface of a central aperture in the disc, and by radially extending tongues fixed to the shaft and entering into corresponding radial slots in the disc. As the assembly rotates, the webs are urged outwards by centrifugal force, to apply a radial compression force to the material of the disc.

Abstract: A drive shaft including a universal coupling is made in the form of a uniy bonded fiber material structure having anisotropic properties. A winding form or mold is assembled to include, for example, an elongated winding sleeve, a flange forming core element, and an elongated winding mandrel joined together. Impregnated fiber material is wound onto the mold so that the fibers of the winding lie at thread angles approximately .+-.45.degree. with respect to the longitudinal axis of the form or mold. The wound structure is compressed whereby the coupling assumes its intended shape after curing or hardening. Portions of the form or mold are removed, for example, by dissolving and washing in a suitable solvent. Alternatively the drive shaft coupling is formed directly on the torque transmitting shafts to be coupled so that the transmitting shafts are integrated into the unitary structure. The annular flange and 45.degree.

Abstract: The invention relates to a process for the treatment on a circular knitting machine of multifilament yarns with a stream of gaseous fluid under superatmospheric pressure, more particularly air, in which treatment the yarns to be knitted are rendered more or less bulky by subjecting them to a blowing treatment in a zone between the point from which the starting yarns are supplied and the point at which they reach the knitting needles.