Abstract: An indexing chuck assembly to hold a work piece so work may be performed on it in differently rotated positions, as on a lathe. The chuck block is rotated between a lifting arm and a table member, the bottom of the chuck block having a cammed shaft which moves both rotationally and linearly as the chuck block is raised and lowered by the lifting arm. The cam shaft has a plurality of yoke cam grooves which engage a biased cam follower in the table member whereby the cam follower follows a reversing cam path defined by the plurality of yokes, each yoke forming a pair of angular grooves in the configuration of a Y, a portion of each yoke being common to its adjoining yoke so that adjoining Y configurations are alternately reversed. Each yoke is defined by an upper pair of aligned rest stops and an intermediate lowered reverse stop, the cam follower imparting rotation to the chuck block as it moves in transit from one rest stop to the adjoining rest stop.

Abstract: There is disclosed an anesthesia breathing system which is interconnected between a source of gas, such as an oxygen or an anesthesia administration system, or both, and a patient supported inhalation-exhalation means such as a face mask or the like, which includes concentrically oriented double tubular inhalation and exhalation lines having one of the tubes positioned interiorly of the other tube, spacer means for supporting and maintaining the concentrically oriented tubes and spaced in relatively fixed spacial relation, first uni-directional valve means carried adjacent one end of the tube system and positioned adjacent to the patient supported inhalation-exhalation means to control gas flow through the inhalation tube and second unidirectional valve means adjacent to the first unidirectional valve means to control gas flow through the exhalation tube, such that the double tubular inhalation-exhalation line functions as a heat exchanger to warm the gases as they travel to the patient while at the same time

Abstract: A table tennis trainer having a net trap erected for positioning at one end of a tennis table and associated therewith a ball collecting and return assembly having a ball collecting tube with negative pressure gradients to move the ball to a supply box where balls are delivered by gravity into a ball feed mechanism which selectively delivers balls into a delivery tube having positive pressure gradients to propel said ball onto the table tennis surface towards a practicing player. A valve is provided to control the positive pressure gradients, to vary the propelled force to the table tennis balls, and an oscillating mechanism is provided to swing the delivery tube from side to side at a selected speed controlled remotely by the player.

Abstract: There is disclosed a lift cradle for inserting and withdrawing flat sheet materials from a storage rack formed by a support beam having lift means associated therewith to accommodate interconnection to a lifting mechanism, at least one pair of jaw members mounted on the support beam and extending downwardly therefrom to a lower end, the members of the pair of jaw members being positioned in substantially opposed, and parallel relationship and being spaced apart a distance.

Abstract: An improved anaerobic digestion of organic biomass by rupturing cells of microorganisms present in a digested biomass or untreated biomass fraction undergoing digestion to obtain a treated biomass fraction having liberated indigenous enzymes in place; and contacting such treated biomass fraction with an untreated biomass fraction so the combined fractions undergo improved anaerobic digestion. The cells in the untreated biomass portion are ruptured by conventional means such as sonication, and about equal volumes of the fractions are preferably combined under conditions of conventional anaerobic digestion.

Abstract: More easily readable matter is provided by intelligible characters which have spaced stroke components and a contrast space between the stroke components, the stroke components forming the intelligible character so that the width is at least about 20% greater than the height. The component strokes have mass or weight which does not exceed 5% of the contrast space with horizontal stroke components; and which does not exceed 30% of the contrast stroke with vertical space components. Cut-ins at stroke component junctions and spurs at outside corners of stroke components allow printing of the intelligible characters without objectionable rounding or filling-in.

Abstract: Welding apparatus for welding railroad rails is movable plus or minus approximately two feet to compensate for the position of the continuous rail, i.e., the already welded together rail sections, as the latter is removed from the welding apparatus.The welding apparatus also is provided with a vertical clamping and aligning system and a horizontal clamping and aligning system, each of which contain pairs of hydraulic cylinders, one of which is larger than the other, with the larger cylinder in each case being operable to a set position with respect to the rail line of the apparatus, to position the rail. The smaller cylinder then operates to effectively clamp the rail against an arm operated by the larger cylinder. The cylinders are connected in a parallelogram-type arrangement, with the entire arrangement being adjustable by means of still another hydraulic cylinder, for a final alignment adjustment.

Abstract: There is disclosed a method for effecting the continuous movement of a fibrous flexible sheet material body which includes the steps of providing an environment which includes a liquid capable of vaporization, providing a membrane permeable to the liquid and positioned relative to the liquid such that vapors emanating from the liquid make contact with and permeate the membrane, and providing a fibrous flexible sheet material body freely positioned on the surface of the membrane and above the liquid such that vapors caused by vaporization of the liquid pass through the permeable membrane and coact with the fibrous material to cause a twisting and moving motion of the body which remains continuous with the provision of vapors permeating through the membrane. There is also disclosed a game device embodying the subject method disclosed herein.

Abstract: An adjustable fish bait forming device is disclosed having a body, a pusher, a tip, an adjusting screw, an adjustment knob, the same being assembled in sequential order of tip and body, pusher within the body, an adjustment knob being at the end of the body remote from the tip. A piston is provided to reciprocate within a cylinder defined at the tip, beginning at a predetermined position within the cylinder so that a bait may be formed of infinitely variable length within the confines of the structure by pressing the tip into the bait, removing the same, and then actuating the pusher to remove the bait. As disclosed the threaded means for determining the position of the piston at the beginning of the formation of the dough is a left-hand thread in order to provide for clockwise adjustment to decrease the size of the bait. Also, at the top of the pusher, an index point is provided which operates in conjunction with graduations to predetermine the length of the bait.

Abstract: An internal combustion engine wherein a piston element with rectilinear sides operates within a movable cylinder-piston element having rectilinear sidewalls, and wherein the combustion chamber has a polyhedral shape. Rotatable crankshafts are mounted in each of the piston and cylinder-piston elements so that said elements follow gyratory paths in opposite directions to effect a variable volume combustion chamber. A cylindrical valve member is rotated in timed sequence to the rotation of the crankshafts so that intake and exhaust ports are sequentially opened and closed during the combustion cycles. One or both of the crankshafts may operate or be joined to a drive shaft or shafts for work output, said crankshafts being interconnected by gear means to coordinate gyratory movement of the piston and cylinder-piston elements.

Abstract: A protective pad formed from a single piece of substantially flat, resilient material formed into at least two discrete sections, each section being foldable with respect to another section along a full fold line therebetween and fold retention means consisting essentially of a metallic strip mounted on the material and traversing each of the fold lines between adjacent sections, the metallic strips permitting each of the sections to be folded with respect to the next adjacent section and retained in any preselected angularized folded position and alternatively permitting the sections to be unfolded with respect to one another and positioned in a flat or unfolded posture.

Abstract: An impulse operating flashing beacon which is an open scroll impulse turbin that rotates due to reaction with air molecules. The beacon includes an elongated shaft which is adapted at one end to be affixed to a portion of a bicycle or the like and carries at its other end a source of light and a rotatably mounted vane or impeller which is caused to rotate as air molecules are impinged on it to reflect light emitted from the source of light in a flashing manner.

Abstract: A signal responsive printer selectively deposits drops of liquid ink onto a moving sheet of ordinary paper. Columns of monodisperse drops traverse a linear array of stationary selective structures consisting of alternating signal and transfer members. The signal members are directly signal responsive. The transfer members switch between adjacent signal members synchronously with the traversing ink drop columns assuring that when an ink drop column is proximate to a junction gap between the selective structures, both adjacent members are at the same selection intensity level.In one embodiment, the selective structures are deflecting electrodes through which columns of uniformly charged ink drops pass. When an ink drop column is proximate to a junction gap, adjacent signal and transfer deflecting electrodes are at the same selection intensity level which is an intensity level of an ink drop deflecting electrostatic field.

Abstract: A signal responsive printer selectively deposits drops of liquid ink onto an advancing sheet of ordinary paper. A flexible endless band having a plurality of uniformly spaced orifices is drawn through a stationary ink source. Liquid ink emerging under pressure from the orifices forms columns of ink drops which have the linear and constant speed motion of the orifice band. Frictionless constraint of the orifice band is provided by air bearings and noncontacting drive is provided by a linear induction motor acting on the orifice band. Simultaneous printing on both sides of a sheet of paper is attained by a configuration wherein a common orifice band loops through two printers which project selected ink drops toward advancing paper.

Abstract: A method of forging a solid flanged head on a hollow steel tube by positioning a cylindrical steel plug within a steel tube of the same grade, and extending said positioned cylindrical plug beyond the end of the tube, thereafter heating the end of the tube and plug beyond the critical temperature of the steel material, and thereafter forging the softened material so that a solid steel head is formed which extends beyond the continuous wall of the steel tube.

Abstract: A gun trigger lock having a pair of opposed plates, the upper edges of which are recessed to accomodate a gun safety button irresepctive of whether in the forward portion or the rearward portion with relation to the trigger guard is disclosed in which a single pivotal connection is positioned at a remote rearward portion adjoining the two plates. In spaced relationship to the pivotal connection is a clamping member, shown as a threaded bolt, and the distance from the edge of the threaded bolt to the pivotal member is controlled by a spacer on the pivotal member to the end that the space approximates one-fourth of an inch. A cushion lining is provided on the interior portions of the two plates so that when the bolt is employed to clamp them together scratching is avoided, and a firm seated connection with the trigger guard is accomplished.

Abstract: A cutting board and knife set is disclosed in which the cutting board has a handle which is recessed to receive the handle of a knife having a complementary configuration to the recess. The recess in the cutting board handle is characterized by a pair of opposed locking tongues which fit into opposed locking recesses or tongue slots in the knife handle. A keyhole is provided also in the cutting board handle for hanging the same on the wall while the knife is lodged in its nesting configuration. At the end of the cutting board opposite the handle, a bevel type scoop is provided in order to pick up pieces of food stuffs that may have fallen off of the cutting board onto a working surface. The material for the cutting board is a high density polypropylene which resists scarring, and is in injection moldable, thereby providing a cutting surface which is pebbled for long life, easing cleaning in a dish washer, and good sanitation.

Abstract: A catalytic fluid heater formed of a number of nested fluid heating chambers spaced from one another to provide therebetween a heating zone having a chimney effect such that a mixture of fuel gas and air is caused to flow through the heating zone from the bottom to the top thereof. A catalyzed surface is disposed in contact with the walls of adjacent ones of the fluid heating chambers. A fuel gas, preferably hydrogen, is delivered to the heating zones, mixed with air and combusted on the catalyzed walls. The combustion product, in such cases, is primarily water vapor, so that external venting is not required.

Abstract: Hot reducing gases are cleaned of sulfur compounds without requiring cooling. A melt of molten lead and metal sulfide is contacted with the hot reducing gases to remove sulfur compounds such as hydrogen sulfide. The lead and elemental sulfur are regenerated from the formed lead sulfide so that the lead can be recycled in excess amounts for subsequent reaction with substantially all the sulfur compound in the hot reducing gases, while reducing the amount of formed metal sulfide slurry in the molten metal to obtain a pumpable mixture.

Abstract: An improved gas humidification system including a substantially closed chamber formed by a plurality of side walls, a bottom wall and a top wall having a gas inlet and outlet ports associated therewith, heat means associated with the bottom wall, and a humidification element removably positionable within the chamber comprising a heat conductive metallic member having an end for contact with the heat means and extending upwardly therefrom, and a layer of water absorbent material fixedly secured to at least one of the surfaces of the metallic member, the metallic member presenting a multi-faceted surface and the absorbent material paralleling the multi-faceted surface of the body portion of the metallic member thereby presenting an increase surface area for gas to pass over and around the humidification element at elevated temperatures thereby to increase the relative humidity of the gas prior to inhalation by a patient.