Abstract: A fabric stretcher includes a pair of clamps for holding the ends of a length of fabric. Each clamp includes a cylindrically-shaped member which has the fabric wrapped once there around. A semicylindrically-shaped cover member covers the fabric on one side of the cylinder and the fabric is wrapped once again around the clamp so as to force the cover onto the fabric beneath it to hold the same in place. A plurality of rods having pins extending from the ends thereof are located between the clamp members and stretch the fabric transversely.

Abstract: An ornamental design for display of selected articles such as photographs. This design has a bifurcated body with base members connected by a hinge. A recess in the body is formed by overlaying edges on these members. A filigree cover is integrally carried by one member, but it is releasably secured to the other member. As a result, the cover is released and the members fold rearwardly to permit the article to be displayed, to be inserted or to be removed from the recess.

Abstract: The display device includes an ordinary mailing envelope with a slot in the back. A stiff fiber-board card is inserted into the envelope. The card has a tab or tongue which is pushed outwardly through the slot in the back of the envelope to serve as a prop to support the envelope in the manner of a display card for counters or shelves in stores, etc. On the front of the envelope is printed the message to be displayed. Alternatively, the front of the envelope is fully or partially transparent, and photographs or other graphic matter are inserted into the envelope with the picture showing so that the display device serves as a relatively simple and low-cost picture frame.

Abstract: The disclosed structure holds a rectangular thin-piece such as a photographic transparency on a base sheet between at least two holding portions formed on the base sheet and a thin-piece seat being recessed relative to the holding portions. A push-in area is formed on the base sheet adjacent to both the seat and at least one of the holding portions. One edge of the thin-piece is once pushed in between the push-in area and the holding portion adjacent thereto to an extent sufficient for clearing the thin-piece from the remainder of the holding portions, and then the thin-piece is moved back from the push-in area onto the seat where an abutting member abutts the thin-piece to keep the thin-piece in position. A plurality of the thin-piece holding structures are formed on one base sheet to form a slide filing sheet.

Abstract: This disclosure relates to a cartridge magazine for pistols which includes a generally elongated magazine sleeve adapted to receive cartridges therein, upper and lower abutment plates housing therebetween a spring, a slide plate for retaining the magazine sleeve operatively associated with a pistol handle, and a finger support at a lower end of the magazine sleeve having a forwardly directed bead-shaped extension, the improvement being forming the finger support as a generally annular configuration disposed in external surrounding relationship to the magazine sleeve with a lower edge of the magazine sleeve and a lower edge of the bead-shaped extension lying in generally contiguous planes and the side plate lying in the plane of the bead-shaped extension lower edge.

Abstract: An elongated wooden box type turkey call having laterally opposed upwardly tapered, longitudinally slotted sidewalls which extend upwardly from a bottom wall, whose bottom surface is concave, are separated from each other by block type end pieces. The end pieces sandwich opposite sides of a central sound board sized and configured to the sidewalls and extending upwardly from the bottom wall to form dual sound chambers on opposite sides thereof. The sidewalls and the sound board extend vertically above the end pieces, and the upper edges are convexly arcuate. A wooden actuator top has a laterally double convex bottom surface, with the dual convex bottom surface portions extending longitudinally of the actuator top. The top is screwed at one end alternately through three laterally spaced holes to the box at the end pieces to permit the actuator top to be aligned with or deliberately misaligned with the open top box.

Abstract: A watering device for potted plants comprising a support disc and a plurality of legs extending downwardly froom the disc so as to elevate said disc from the bottom of a tray. A pad is positioned on said disc, with the pad having a hinged movable tab which can be bend downwardly through an opening formed in the disc for submergence in the water in the tray. Thus, water is transmitted by capillary action from said tab to and uniformly throughout said pad for providing water to a pot positioned on said pad.

Abstract: A weather stripping apparatus for use around doors or windows. The apparatus comprises a flexible elongate tubular member which is generally flat and has a plurality of openings along the front edge. Self-adhesive tape is provided for attachment of the apparatus to the area to be insulated. The openings are exposed to the air whose flow is to be inhibited. Any movement of the air caused by wind or the like will cause the air to enter the openings and inflate the weather stripping apparatus, sealing gaps between the door or window and its frame through which air would normally flow.

Abstract: An improved ultrasonic machining method and apparatus wherein the vibratory oscillations applied to an ultrasonic machining tool and transmitted to the machining region are periodically interrupted so that they are applied and transmitted in the form of a series of time-spaced bursts.

Abstract: A grinding machine for grinding and polishing metallographic specimens. A multiple-grinder, indexable, vertical grinder assembly is supported on a rigid frame enclosed within a housing. A rotating, vertically positionable specimen holder assembly is also supported on the frame within the said housing, for holding specimens in grinding position. A coolant and grinding fluid system supported on the frame supplies coolant and grinding fluid to specimens supported in said specimen holder during the grinding thereof. The specimen holder is vertically positionable relative to the grinder assembly, so that specimens held by the holder can be ground and polished by a selected successive plurality of grinders.

Abstract: A device for abrading objects comprising a supporting surface for the object, abrading means operative near the supporting surface and a driven, endless conveyor belt arranged at a distance above the supporting surface, whereas the lower run of the belt is pressed upon the object, wherein the device is provided with a suction cabinet supported by the frame of the conveyor belt and having suction apertures turned towards the top side of the lower run for drawing the lower run against the suction cabinet; the cabinet is connected through a conduit with an outlet channel for conducting away chips.

Abstract: This invention relates to apparatus for facilitating the maching of cams at a constant cutting speed. A cam is mounted betwen points on the same geometric axis as a reproduction template or master cam and cooperates with a roller to cause pivotal movement of a machining member to generate the desired shape on a workpiece or cam. The apparatus includes a memory for storing predetermined theoretical instantaneous values of the speed of rotation of the cam that must be implemented such that the cutting speed remains the same at any point around the cam. A speed varying arrangement is responsive to the instantaneous angular orientation of the cam, the predetermined theoretical value of the speed of rotation of the cam at each instant and the instantaneous speed of the motor for varying the speed of rotation of the cam such that the cutting speed remains the same at any point around the periphery of the cam.

Abstract: A protecting hood assembly for use in a motor-driven hand tool such as grinder or circular saw. The assembly includes a hood having a pair of openings, each being formed with a narrowing portion of a squared cross-section and a widened portion forming a slot, a pair of vertically positioned supporting members each having a longitudinal slit and a couple of bolts having each a peripheral portion inserted into said slit and said opening. The widened portion of the opening receiving the bolt is formed with a size in a horizontal direction being larger that a diameter of the peripheral portion of the bolt and a size in a vertical direction being smaller that said diameter to facilitate the installation of the bolt into the hood opening upon assembling and to provide a reliable clamping of said bolt in assembly after insertion thereof.

Abstract: A method of finishing a glass surface to a close tolerance and a substantially blemish-free state using a moving polishing lap and an aqueous treatment liquid containing inert abrasive particles, in which the treatment liquid also contains a bifluoride which reacts with the glass to form an insoluble silicofluoride or fluoride, an acid supplying hydrogen ions and a solubility suppressant which ensures that the silicofluoride or fluoride separates out on the glass surface, whereby the lap and inert particles remove the silicofluoride or fluoride from high portions of the glass surface and thereby allow further reaction and glass removal in those areas until the desired finished form of the glass surface has been achieved, whereupon the supply of treatment liquid is stopped and immediately replaced by a supply of an alkaline neutralizing solution, e.g.

Abstract: Structures including buildings, furniture items or room partitions are formed by assembling panels and releasably connecting the panels together with a support system comprising collars on the corners of the panels and elastic members interconnecting these collars so as to hold the structure together into a predetermined form by virtue of the tension of the stretched elastic members. Structures formed by this system include building structures such as small outdoor shelters, furniture items such as display cases, bookshelves, tables and containers and room partitions of virtually any arrangement, and toys.

Abstract: The specification discloses a removable swimming pool comprising a plurality of side wall panels and deck panels, a flexible liner, and a facing member, which is connected between the deck and side wall panels, and extends around the inside marginal edge of the pool. The facing member depends from the deck panels to a point disposed normally adjacent to the water line of the pool, and overlies an upper portion of the liner to alleviate deterioration and damage thereto. A plurality of braces are provided to support the deck panels thereon and simultaneously anchor the side wall panels in the ground.

Abstract: An improved anti-skid tread or grating (10) design is provided with gripping members or rosettes (30) having a plurality of upstanding individual lobes (36) which are configured in such a way and project high enough to provide an excellent gripping surface. The lobes (36) of the design are self-cleaning, and have non-continuous gripping edges at their crests (40) that accommodate a greater build up of ice or mud without clogging the grating (10).

Abstract: A swimming pool has a sidewall and a flexible liner, the sidewall defining an outwardly extending bay having opposed sidewalls between which a stair assembly is sealingly secured. The stair assembly is a molded structure having a continuous depending flange at the ends of the treads and risers and a hollow triangular stiffening rib extending longitudinally and generally centrally along the underside of each tread. A continuous coping embraces the upper edge of the pool sidewall, the upper edges of the opposed sidewalls and the upper edge of the top riser of the stair assembly. The opposed sidewalls of the bay are metal plates to which the depending flanges of the stair assembly are secured and those plates have edge flanges sealed to the edges of the flexible liner at the sides of the bay.

Abstract: A window glass mounting arrangement comprises flexible material which is formed to define first and second channels side-by-side and facing in opposite directions. The first channel is sized to fit over and grip a support member surrounding the window opening so that the second channel then runs alongside the window opening for receiving the window glass. The wall of the second channel furthest from the first channel has a slot for receiving a stiffening member for stiffening that wall so as to secure the window glass in the second channel. The material defining the first channel has embedded in it a metal carrier of substantially channel-shape which is capable of a limited amount of lengthwise compression but substantially no lengthwise stretching. The arrangement is made slightly oversize and then compressed into the opening. This enables the glass to "float" slightly in use and reduces stretching of the rubber at bends in the opening.

Abstract: In a system for anchoring a tendon extending through a structural concrete unit, an anchoring member is located at the outside surface of the concrete unit and has a frusto-conical passage through which a tendon passes as it extends outwardly from the concrete unit. A cap fits over the outer surface of the anchoring member and forms a closure over its frusto-conical passage. The cap is shaped so that it has an inwardly projecting portion which seats against the outer ends of wedge parts securing the tendon within the passage in the anchoring member. The projection on the cap exerts a compressive force holding the wedge parts in place. Further, during construction of the concrete unit, the cap can secure the wedge parts against displacement.

Abstract: A composite bridge structure having a precompressed beam for supporting loads thereon is described. A plurality of spaced apart consoles are secured to the beam, the consoles being urged apart to create a bending moment in the beam having a substantially parabolic distribution between the ends of the beam. The bending moment is in a direction opposite to the direction of the moment created by the loads supported by the beam. As a consequence of the precompression, a longitudinal force and bending moment working on the composite bridge structure improves the load carrying capacity of the structure.

Abstract: A cured structural building element formed by winding and curing resin saturated glass fibre on a former. The element takes the form of a rod or beam having pairs of projections pointing towards each other at an angle to the rod or beam. The heads of the projections are arranged to lock together upon bending of the rod or beam to form a curved rigid element.

Abstract: A method of construction is disclosed employing reinforced concrete building block modules which are assembled into load bearing walls. The modules are configured as hollow rectangles with each of the corners beveled and with reinforcing rods extending through each of the top, bottom and sides of the rectangle and into the bevel spaces. After assembling the modules into wall structures, the adjacent reinforcing rods are joined to each other and the bevel spaces filled in with concrete. The modules are optionally provided with attached or integrally formed exterior and/or interior facing panels and the hollow space within each module is adapted to be filled with foam insulation. In the resulting wall structure, the sides of each of the modules act as load bearing columns supporting the building floors, with the weight thereof transmitted into the columns by the top of each module acting as an arch.

Abstract: Interlocking panels having a decorative pattern thereon and having a system of interlocks for providing a weatherproof covering system for use as roofing, siding and the like. The panels may be of a readily formed material such as a thermoplastic having a decorative pattern thereon complimentary to the pattern on adjacent panels to provide a continuous decorative roofing or siding panel system. The panels have a simple hook-like region adjacent the upper edge thereof, just below the nail line retaining the panel to the roof, to receive and retain the lower edge of the panels of the next higher course in a manner so as to eliminate the otherwise exposed nailheads. Decorative patterns simulating conventional materials such as shake may be impressed into the panels by vacuum forming and/or other manufacturing techniques. Use of a staggered panel side provides for a substantially hidden junction between sidewise adjacent panels to provide a continuous and unbroken pattern.

Abstract: A fire door comprising a core and edge banding, the principal ingredients of the core being expanded perlite, gypsum and cement, and including, as minor ingredients, an organic binder, and having a density not greater than about 35 lbs./cu. ft. The banding comprises composite stiles and rails, each formed of a strip of wood and a strip of a cast mixture of which the principal ingredient is gypsum and including a binder and preferably also including fibers, unexpanded vermiculite and clay.

Abstract: The apparatus comprises a rotating plate directly coupled to the shaft of the driving motor and carrying phial holding and handling devices selectively actuatable to be rotated between upward and downward positions around their radial shafts. The filling and cleaning stations of the apparatus include small-sized pans releasably mounted on sliding pan-supporting devices, upward displacement of the pans to bring same into sealing contact engagement with the cover plate of the phial holding devices and downward displacement of said pans being achieved by a double-action cylinder, the end of the cylinder rod of which selectively comes into sealing bearing engagement with a shaped draining opening formed in the bottom of the pan.

Abstract: An improved machine and method of making and folding an insert and an envelope.

Abstract: A continuous movement capsule processing machine comprising, sequentially, a station for feeding empty capsules to be filled with a powder or granulated loose product, a capsule orienting station, a capsule opening station, a station for metering and loading the loose product into said capsules, and a station for closing and ejecting the loaded capsules. All stations are carried by a single turret set to revolve about a central drive axle and are recurrently arranged in each of a series of sectors of the turret located about the axle.

Abstract: Method and apparatus for producing bales of tobacco compressed between opposed boards with strapping applied about the boards with predetermined tension. Tobacco is compressed in a chamber at the bottom of a charger and then ejected in one direction along a horizontal plane directly between a pair of opposed boards which are then moved with the tobacco therebetween at right angles to said one direction to the strapping station. The tobacco and boards are constrained during movement to the strapping station to control the dimension and shape of the bale prior to strapping which can then be applied with predetermined tension to maintain dimensional control over the bale.

Abstract: A device and a method for wrapping a bale of hay with flexible sheet material. The device which preferably is in the form of a unit arranged to be hitched to a tractor supports a roll of the material and it has a pair of bale holding discs rotationally carried by swing arms mounted on the two sides of the device for rocking movement about vertical axes between an open and a closed position. With the discs in open position, the device is backed against a bale on the ground; the swing arms with their discs are rocked into closed position so that the two ends of the bale are engaged by the discs; then the discs and the bale between them are rotated together with a holding element urging the sheet material against the bale, by more than one revolution, with the bale slightly off the ground so that upon release of the bale the overlapping leading and trailing portions of the wrapped material are held in position by the weight of the bale; and the material is then cut.

Abstract: Nonwoven fibrous sheets impregnated with latices of polyvinyl acetate or its copolymers containing polyvinyl alcohol, intended for use in pre-moistened condition as skin cleansing tissues, are folded and packaged in closed containers or in individual sealed water impervious envelopes; said packaged sheets being maintained in contact with a dilute aqueous solution of a precipitating or gelling agent for polyvinyl alcohol, such as boric acid. The agent imparts improved wet tensile strength to the sheet during storage and use by the consumer but permits the sheet to be safely disposed of, after use, by flushing in plain water without danger of clogging the plumbing system.

Abstract: Nonwoven fibrous sheets bonded with polyvinyl alcohol, intended for use in pre-moistened condition as skin cleansing tissues, are folded and packaged in closed containers or in individual sealed water impervious envelopes; said packaged sheets being maintained in contact with a dilute aqueous solution of boric acid. The boric acid imparts improved wet tensile strength to the sheet during storage and use by the consumer but may be safely disposed of, after use, by flushing in plain water without danger of clogging the plumbing system. Instead of boric acid solution, one may employ for the indicated purpose a non-alkaline aqueous solution of a salt which acts as a precipitating or gelling agent for polyvinyl alcohol, said salt being one having an acid to neutral pH on hydrolysis.

Abstract: A support frame and method of making and packaging such frame which comprises a pair of similarly constructed end supports formed of readily bendable structural members, each having a specifically constructed notch configuration about which the structural members can be readily bent to define an inverted U-shaped end support. The arrangement is such that the ends of side rails for maintaining opposed end supports in predetermined spaced relationship are disposed within the respective notches whereby the notches closed about the end of a corresponding side rail to positively secure the rails to the end support during the bending and forming of the U-shaped end support. The structural members and side rails defining the complete support frame are packaged as elongated rectilinear members in complementary pairs with the side rails packaged between a pair of elongated unbent end support members so as to occupy a minimum of space for shipping or packing.

Abstract: Supplemental head equipment for lunging horses, comprising a sliding head-piece resting against the nape of a horse's neck and including rings and releasable fasteners for connection to a convention head-stall.

Abstract: In a harvesting and threshing machine having stone sensing apparatus mounted within an infeed housing, the infeed housing being mounted to the machine and effective to receive crop material from a header and convey the crop material via a crop elevator from the header to threshing and separating apparatus within the machine, there is provided control apparatus connectable to the stone sensing apparatus effective upon activation of the stone sensing apparatus to stop the crop elevator from conveying crop material from the header to the threshing and separating apparatus.

Abstract: A supporting structure for an agricultural machine which may be connected to a movable vehicle includes a first frame adapted to be connected to the vehicle, a second frame adapted to be connected to the agricultural machine, an articulation device including a pivotable parallelogram mechanism connected to the frames, and permitting movement therebetween, and restraining devices limiting the movement between the frames.

Abstract: A wheeled platform is provided with a centrally located aperture for receiving and supporting the lower portion of a housing for a grass trimming device so that the cutting element of the device will extend beneath the platform and the motor housing will extend above the platform; pivoted arms are mounted on the platform to extend along or across the aperture to engage and hold the housing in position in the aperture on the platform; locking devices are provided on the top of the platform to grasp the ends of the arms to hold them in a closed position; a telescoping handle is pivotally mounted on one end of the platform on the top side thereof.

Abstract: A sugar-cane harvester having a frame and a cutter unit is provided with means for adjusting a vertically swingable cutter unit having a skid engaging the ground in its traveling path over uneven ground. This means includes a double-acting hydraulic piston-cylinder unit and a spring whose force counteracts the major part of the weight of the cutter unit. The piston of the hydraulic unit is connected to the cutter unit whereas its cylinder is connected to the frame of the harvester. The adjusting assembly further includes a slide adapted to selectively supply with a working fluid each of two opposite ends of the cylinder chamber, and a pair of electro-magnetic valves actuating the movement of the slide in two opposite directions in response to any inclined position of the cutter unit in its travelling path over uneven ground.

Abstract: A roll baling machine includes an apron movably supported on a base frame and a rear frame for forming roll bales of crop material. The rear frame is pivotally connected to the base frame. A rotatable arm assembly is mounted on the base frame and supports part of the apron. The arm assembly has guide members carried on front and rear arms for engaging the apron. When the machine is empty, the arm assembly is positioned so that its rear arms extend into the rear frame. When a completed bale has been formed, the arm assembly is positioned so that its rear arms are disposed outside the rear frame.

Abstract: An apparatus having a frame adapted for earth traversing movement in a direction of travel and having a portion laterally positionable with respect to the direction of travel, a work assembly pivotally mounted on the laterally positionable portion of the frame for movement therewith, and an arm interconnecting the work assembly and the frame to pivot the work assembly through a plurality of positions relative to the direction of travel as the portion of the frame is laterally positioned.

Abstract: A binding for bundles of fibers in which fibers originating from at least one of the fiber bundles wind around the rest of the fibers in a manner locked by tension. Fiber bundles which are to be bound are deformed between deformation members and fibers are removed from at least one of the fiber bundles and are wound in a manner locked by tension around the remainder of the remaining pieces of fibers to be bound. Deformation members are positioned very close to each other, each having a profiled surface, and they can be driven in opposite directions with respect to each other. The fiber bundles which are to be bound are deformed in the gap between the deformation members.

Abstract: The control arrangement is used in conjunction with a textile machine at which a thread or a filament, respectively, supplied from a creel package is guided via a roll, around which it forms a plurality of windings, to a thread guide eyelet and to a ring spindle system. The invention aims at the reliable elimination of any danger of lap-up formation on the roll including the danger of lap-up formation caused by unwinding the thread from a take-up bobbin (unwinding "overhead" from the take-up bobbin). The control arrangement comprises a first thread severing element which severs the thread upstream from the roll, and a second thread severing element which severs the thread along the unwinding path between the roll and the take-up bobbin.

Abstract: The invention relates to a rotating ring for spinning frames, advantageously for ring spinners comprising a rotating ring arranged coaxially in a fixed body by the interposition of an annular cage enclosing a plurality of spheres.Lateral shielding encloses the annular cage. Included is a brake cooperating with the cage enclosing spheres, and containing a pin sleeve and spring to carry out the required brake adjustment.The rotating ring is made in at least one piece.

Abstract: A novel synthetic heather yarn is comprised of a first yarn in the form a relatively loose matrix of crimped filaments which are randomly intermingled with portions of a bulked differentially-colored or colorable second yarn which contains frequent periodic color-point nodes of high filament entanglement and which nodes are free from filament intermingling with said first yarn. The combined yarn is made using fluid-jets first to make the nodes in the color-print yarn or yarns and then to combine the color-point with the matrix yarn in a subsequent filament intermingling zone.

Abstract: Combustion systems which employ such features as rotary cup fuel atomizers and the latter in conjunction with CIVIC combustion to enhance flame performance, to produce efficient combustion over a wide operating range, and to eliminate the problems typically encountered in liquid fueled combustors, especially as they are scaled down in size. Innovations that can advantageously be employed in combustors operated on other fuels are also disclosed.

Abstract: Combustion systems which employ such features as rotary cup fuel atomizers and the latter in conjunction with CIVIC combustion to enhance flame performance, to produce efficient combustion over a wide operating range, and to eliminate the problems typically encountered in liquid fueled combustors, especially as they are scaled down in size. Innovations that can advantageously be employed in combustors operated on other fuels are also disclosed.

Abstract: A soot filter in the exhaust gas flow of air-compressing internal combustion engines, with a preferably cylindrically shaped filter housing arranged in proximity of the exhaust of the internal combustion engine, to which are connected radial or tangential inlet connections and in which is arranged ceramic fiber material; the fiber material forms hollow spaces together with the inner wall surfaces of the filter housing, which hollow spaces receive the exhaust gases after flowing through the filter parts and which conduct the exhaust gases in the axial direction of the filter housing to the exhaust line axially connected thereto.

Abstract: A fluid control circuit includes a source of pressurized fluid (10) adapted for connection to a hydrostatic transmission (23) upon actuation of a vent control valve (16). The vent control valve (16) is connected to a control and preconditioning valve (17) which functions to ensure that a control lever (14) is in its "vent" position upon starting of an engine and provides for the continuous preconditioning of the control circuit subsequent to such start-up. The control circuit is relatively non-complex in structure and function and does not require positioning of the control lever (14) in a special reset position upon shifting thereof between its "run" and "vent" positions.

Abstract: Prior art interrupted series type load sensitive hydraulic systems have not had the capability of both providing full speed simultaneous vehicle cornering and implement correction while preventing the same when the implements are operating at a high pressure level, and preventing low torque motor stall. Herein, an input flow path (22) delivers pressurized fluid flow from a source (12) to a first priority (steering) circuit (14). A series flow path (24) delivers the output flow from the circuit (14) to an implement circuit (16). A parallel flow path (26) delivers a portion of the flow from the source (12) to the implement circuit (16). A valving structure (42) is in the series flow path (24). The valving structure (42) is opened in response to load pressure in the implement circuit (16) being at or below a selected value and is closed in response to the load pressure in the implement circuit being above said value.

Abstract: Fluid control circuits employed on construction vehicles to control the actuation of various work cylinders oftentimes include a system for sensing the fluid pressure in the cylinder and communicating such fluid pressure to a control device in signal form to closely control the displacement of a pump, the flow capacity of a pressure compensated flow control valve, or the like. The sensing system is normally associated with the spool of a directional control valve which must travel a substantial distance to effect extension or retraction of the cylinder and normally requires an "anti-rotation" device to insure proper alignment of the various ports and passages. Conventional high pressure systems of this type also pose potential leakage problems.