Abstract: Every pressure vessel is connected by the agency of a connection channel to a control chamber. In both connection channels a shut-off valve is provided. The control chamber comprises a spring bellows whereby a spring counteracts a pressure force acting onto the mean area of said spring bellows. A ring is arranged on a control rod which controls the position of said shut-off valves. Upon a pressure loss in one of the pressure vessels the control rod operates the shut-off valves into their shut-off position such that upon a later pressure rise in one of the pressure vessels these shut-off valves remain closed. This ensures that upon a later pressure rise in an undamaged of the two pressure vessels such will remain separated from the damaged one. This pressure control means is preferably used in a motor vehicle having twin tires such as a truck or bus.

Abstract: An acoustic wave display, scanning or storage device employs a light-modifying member which is responsive to acoustic wave energy in combination with a strobed electric field or light to produce an image or data point.

Abstract: A winding and reeling device for an elongated, flexible member. A reel is connected to the outer end of a spiral spring. The outer end of the spiral spring is rigidly connected to the reel, whereby a gear is connected between the outer and the inner end of the spiral spring such that upon rotation of the outer end of the spiral spring around its center axis the inner end of the spiral spring rotates around the same axis, however at a slower rotational speed. The reel has smooth surfaces and comprises at no place any gear teeth. A rotation of the reel causes the rotation of the gear wheels of the gear, whereby two gear wheels having a different number of teeth are rigidly connected to each other and arranged on a common shaft. A further shaft is provided which carries two further gear wheels, whereby one gear wheel is rigidly connected to the further shaft and the other gear wheel is freely rotatable on said further shaft.

Abstract: A slide fastener stringer with coupling elements molded on inner edge portions of a tape has connecting portions molded through openings formed in the tape between upper and lower leg portions molded on the upper and lower sides of the tape. The openings in the tape are formed by displacement of tape material in the tape and setting of at least a portion of the displaced tape material in regions adjacent each of the openings to maintain the openings during the molding.

Abstract: A product accumulator for a conveyor system includes a movable through-lane belt having an in-feed end and an out-feed end, at least one first auxiliary belt disposed adjacent the through-lane belt and movable in the same direction, and at least one second auxiliary belt disposed adjacent the through-lane belt and movable in the opposite direction, adjustable stationary guides, one guide disposed adjacent one end of the first auxiliary belt near the out-feed end of the through-lane belt to guide product from the first auxiliary belt onto the through-lane belt, and another guide disposed adjacent one end of the second auxiliary belt near the in-feed end of the through-lane belt, to guide product from the second auxiliary belt onto the through-lane belt, said guides disposed closely above the belts and arranged to move product from belt to belt whenever product is prevented from moving along the out-feed end of the through-lane belt.

Abstract: A solar heat collection device comprising collectors arranged to be fixedly disposed as sub-collectors each of a set of at least two of such collectors, with one longitudinal edge of their screen adjoining one another. The sub-collectors are of identical construction and each designed to collect solar heat during an associated sub-period of at least two consecutive sub-periods of the solar day. Each sub-collector contains a primary liquid heating tube and a separate, secondary liquid heating tube parallel to said primary liquid heating tube and connected in series with said primary liquid heating tube in the bottom part of the sub-collector. In cross-section, the two tubes adjoin one another in the direction of depth of the sub-collector and extend, in that direction, from the deepest part of said trough for a joint height which is no greater than approximately one-fourth of the aperture width of the sub-collector, measured between the longitudinal edges thereof.

Abstract: A helical or spiral-shaped food, particularly a potato, is produced by means of being cut in a way that a helical or spiral ribbon is produced having a series of loops around a center whereby the loops define a space from each other. The space corresponds to the shape of the loops and is filled with at least one similar, helical or spiral ribbon.

Abstract: In an article elevating apparatus, articles such as cigarette cartons, are picked up at a loading station by inclined roller carriers moving in an upward vertical direction. During upward movement the articles are held on the roller carriers by sliding engagement of the downward end of the articles against a vertical rail. The articles roll off of the carriers at a discharge station defined by the upper end of the rail.

Abstract: An iodine dispenser for water disinfection and/or treatment purposes includes a squeezable plastic container containing elemental iodine therein. The iodine is dispensed by placing water within the container to dissolve at least a portion of the iodine and then dispensing the iodine solution from the container.

Abstract: A slide fastener guide assembly is disclosed for aligning a workpiece, a slide fastener and a strip of backing material as they are fed into a sewing machine. The assembly includes a base with an attached guide member having fingers that bear against the mounting tapes and align the slide fastener by laterally engaging the coupling elements. To allow a slidered fastener to pass through the assembly, the guide member is sufficiently flexible that the fingers may be displaced upward by a slider passing thereunder.

Abstract: In a soil cultivating implement comprising a harrow with tines and a trailing bladed rotor for smoothing the furrowy nature of the field surface left behind the rear row of harrow tines, the blades of said rotor are arranged in groups with intermediate spaces aligned with the harrow tines of the rear row of tines. Each group comprises at least three rings of blades which all work the earth ridges left behind the harrow.

Abstract: In a centrifugal separator, in particular for separating light materials, such as grass seed, from an air flow, a whirl chamber is provided between a circumferential wall of the separator casing and a radially inner filter consisting of a louvred shell imparting a change of direction of about 180.degree. to the air flow on its way from the whirl chamber to the air outlet of the casing, thereby creating within the shell a counter-rotating whirl of air and material passed through the slits together with air.To separate such material from the air, the shell is provided with a vertically extending slot associated with an ejector rail adapted to remove the outer portions of the counter-rotating whirl and feed them back for renewed separation in the whirl chamber of the separator casing. The slits may then be given such a size that they will not be blocked up by the material or give rise to an increased loss of pressure, as the ejector rail provides for regaining the material passed through the slits.

Abstract: A golf trainer device is disclosed as including a frame defined by a pair of generally rectangular frame sections arranged in side-by-side vertical, upright positions with a rear hinge connecting the two sections and permitting folding thereof between a side-by-side position and a V-shaped position, connecting rods between the two frame sections for retaining the same in the V-shaped position; upper and lower horizontal flexible nets spanning the space between upper and lower portions of the two frame sections, respectively; a pair of vertical flexible nets, one attached to each frame section; a vertical flexible fabric sheet fixed to the horizontal nets intermediately between front and rear vertical legs of the frame sections so as to present an impact area for a driven golf ball; the flexible fabric sheet being made of a fabric stronger than the horizontal and vertical nets to absorb the impact of a driven golf ball; removable attachments for each connecting rod whereby the rods may be removed to permit fol

Abstract: A pet waste containment or waste matter disposer unit is disclosed as including a first sheet of sealable material for receiving the waste matter and a covering sheet of sealable material superimposed relative to the first sheet. The free marginal edges of the superimposed sheets are then sealed to each other to form a package and the now encapsulated waste material can be easily and sanitarily disposed.

Abstract: An apparatus for a warp knitting machine is disclosed as including individual sinkers movable between needles that hold a fabric, two right-angles sides of each sinker are disposed so that each knitted stitch row may be held away from the back of the needle.

Abstract: A warp knitting machine is disclosed as including slider needles, each of which has a needle shank of channel form with a hook head and a slider that covers the hook opening of the needle shank by means of a cover member fitted on the slider shank, such cover member is shorter than the hook opening of the needle shank, and the slider has such a cross-section that it carries the stitch in each instance without being supported on the needle shank and/or the hook head.

Abstract: Flypieces are fed by a conveyor to a sewing station in a sewing machine which is operated by a sensor mounted a spaced distance in front of the sewing station to sew the flypieces to a slide fastener chain. The linear rate of feed of the flypieces by the conveyor is slower than the linear rate of feed of the flypiece and slide fastener chain through the sewing station by the sewing machine, and operation and termination of the sewing machine in response to the sensor is delayed so that uniform spacing is produced between flypieces sewn on the slide fastener chain.

Abstract: A solid fuel furnace is disclosed as including a firebox disposed inside of a heating chamber through which air to be heated is passed. A pair of baffles guides the air through the heating chamber to progressively heat the air. In addition, an auxiliary air system is provided to inject air into the fire when there is a heating demand to increase combustion and provide more heat when it is most needed.A modified solid fuel furnace is also disclosed which includes a combustion chamber having a door designed to prevent flash-back when the door is opened, a valve for preventing a flow of combustion air to the combustion chamber when the temperature in the combustion chamber rises above a present level, and a manual override for the valve.

Abstract: A method for forming slide fasteners with attached sewing guides is disclosed wherein a stock strip of paper is coated with adhesive and release material and subsequently formed into pairs of member sections which are folded and then assembled on center sections to form composite sections. Perforated sewing lines and/or window openings are punched in the composite sections and the composite sections are attached by at least two of the strips of the pressure sensitive adhesive to the tapes of slide fasteners to form slide fasteners with attached sewing guides.

Abstract: A cleat member for the conveying surface of a conveyor that moves in one or more planes. The conveyor surface may be formed of a plurality of flat, flight attachments and one or more cleat members positioned between spaced flight attachments, all being secured to drive chain. The cleat members include shoulder means permitting the cleat to push as well as to, in certain circumstances, slip under articles such as cartons carried by the conveyor. The shoulder means may also be formed on flat, belt type conveyor surfaces to provide a similar slip cleat in accordance with the invention.