Abstract: The apparatus described herein is capable of producing a cam which has a cam lobe having opposite sinusoidal surfaces which have at least two rises and at least two dips in 360.degree. of each sinusoidal surface with the rises in one such surface being opposite to the dips in the other such surfaces. These sinusoidal surfaces are designed so that they may be in full, centerline contact with pairs of bearings attached to connecting rods, these bearings being on opposite sides of the cam lobe and at one time being driven in one direction by one of the two pistons in each pair and then at another time in the opposite direction by the other piston in that pair, the two pistons of that pair being connected to each other by the same connecting rod carrying the bearings which are adapted to press against the cam lobe. The surfaces of the cam lobe are designed to avoid friction or binding between the bearings and the cam lobe. An engine for which this cam is particularly useful is described in applicant's U.S. Pat.

Abstract: The process described herein produces a cam which has a cam lobe having opposite sinusoidal surfaces which have at least two rises and at least two dips in 360.degree. of each sinusoidal surface with the rises in one such surface being opposite to the dips in the other such surface. These sinusoidal surfaces are designed so that they may be in full, centerline contact with pairs of bearings attached to connecting rods, these bearings being on opposite sides of the cam lobe and at one time being driven in one direction by one of the two pistons in each pair and then at another time in the opposite direction by the other piston in that pair, the two pistons of that pair being connected to each other by the same connecting rod carrying the bearings which are adapted to press against the cam lobe. The surfaces of the cam lobe are designed to avoid friction or binding between the bearings and the cam lobe. An engine for which this cam is particularly useful is described in applicant's U.S. Pat. No.

Abstract: The device described herein comprises a sweatband adapted to collect sweat from the forehead of a runner or other exerciser into a trough and to direct the collected sweat to run out of the collecting trough through draining means positioned so as to let the collected sweat run out at the side of the wearer's head, preferably near his ears. The sweatband preferably has a lip extending upward and inward from the outer side of the trough, or that side not adjacent to the wearer's forehead, whereby any sloshing or overflow of the collected sweat that might be caused by the motion or jarring of the wearer's body will be avoided. In another preferred modification the side of the sweatband which is adapted to be positioned against the wearer's forehead is advantageously made of a wise strip of material to give more firm positioning against the forehead.

Abstract: The process and product derived therefrom use the moldable composition derived from intimate co-reacted mixtures of powder or otherwise blendable form of 20-80% by weight of a phenolic-furfuraldehyde Novolac resin and of 20-80% by weight of a phenolic-aldehyde resol resin dispersed in water, either in solution or suspension, the percentages being based on the combined weight of the Novolac and resol resins, and the aldehyde in said Novolac resin comprising at least 50 molar percent, preferably substantially 100 percent, furfuraldehyde. The composition advantageously contains an amine such as hexamethylenetetramine ("hexa") in an amount equivalent to 1-15%, preferably 2-10% of hexamethylenetetramine based on the total amount of phenolic component. The composition is made by adding the preformed phenol-furfuraldehyde Novolac to the resol resin prior to dehydration of the resol resin to produce a grafted polymerization product of improved properties.

Abstract: The device described herein comprises a sweatband adapted to collect sweat from the forehead of a runner or other exerciser and optionally to feed the collected sweat to a tube running down to the runner's mouth so that the salt and water given off in the sweat may be returned to the body. If it is not desired to return the sweat to the runner's mouth, it may be allowed to run off away from the runner's face. The sweatband has one or more grooved strips which have the open portion of the groove (or grooves) facing upward or toward the runner's forehead and adapted to collect sweat running down the forehead. The grooves may feed into a tube or groove which runs downward to a mouthpiece to be inserted into the runner's mouth and the sweat fed into the runner's mouth through an opening in the mouthpiece. The tube may have openings therein or actually comprise a groove slanted forward and downward on the face so that facial sweat may also be collected.

Abstract: The process for producing a vitreous carbon involves the molded product of a moldable composition produced from co-reacted mixtures of powder or otherwise blendable form of 20-80% by weight of a phenolic-furfuraldehyde Novolac resin and of 20-80% by weight of phenolic-aldehyde resol resin dispersed in water, either in solution or suspension, the percentages being based on the combined weight of the Novolac and resol resins, and the aldehyde in said Novolac resin comprising at least 50 molar percent, preferably substantially 100 percent, furfuraldehyde. The composition advantageously contains an amine such as hexamethylenetetramine ("hexa") in an amount equivalent to 1-15%, preferably 2-10% of hexamethylenetetramine based on the total amount of phenolic component. The composition is made by adding the preformed phenol-furfuraldehyde Novolac to the resol resin prior to dehydration of the resol resin to produce a grafted polymerization product of improved properties.

Abstract: The moldable composition disclosed herein comprises co-reacted mixtures of powder or otherwise blendable form of 20-80% by weight of a phenolic-furfuraldehyde Novolac resin and of 20-80% by weight of a phenolic-aldehyde resol resin in water, either in solution or suspension, the percentages being based on the combined weight of the Novolac and resol resins, and the aldehyde in said Novolac resin comprising at least 50 molar percent, preferably substantially 100 percent, furfuraldehyde. The composition contains an amine such as hexamethylenetetramine ("hexa") in an amount equivalent to 1-15%, preferably 2-10% of hexamethylenetetramine based on the total amount of phenolic component. The composition is made by adding the preformed phenol-furfuraldehyde Novolac to the resol resin prior to dehydration of the resol resin to produce a grafted polymerization product of improved properties.

Abstract: The compound caulerpin whose formula is given hereinafter and is derived from a marine alga has been found to have certain auxin-like properties for the stimulation of plant growth, either by itself or in combination with other auxins. Since standard bio-assay for auxin activity does not give positive results with caulerpin, this is regarded as a new type of plant growth regulator.

Abstract: Disclosed is a drum brush percussion device to be used in conjunction with drums, cymbals or the like, which is capable of generating those sounds of the traditional drum brush as well as more forceful percussive tones and novel combinations thereof. This is accomplished through the use of pellets being attached to some of the bristles of a drum brush in spaced relation to the distal end of the bristles of the drum brush. Such a configuration allows the drum brush to be used to generate a diversity of sounds merely by varying the angle at which the brush strikes the drum, cymbal or the like.

Abstract: Mechanism for automatic swing doors including three motion detectors, two associated with the approach side of the door and one on the swing side of the door, with the detectors on the approach side effective, when activated, to open the door and the detector on the swing side effective, when activated, to slow down the moving door.

Abstract: Apparatus for effectively and efficiently cutting and bending rods, used for instance in lintels, footers, and slabs, comprising a portable workbench having suitably secured on the table thereof bending and cutting assemblies, hydraulic power cylinders for actuating the assemblies, and suitable controls for ease of operation of the assemblies. The cutting assembly includes a stationary cutter disposed in a vertical position on the table top adapted to be engaged by a vertical rotatably moved cutter for the shearing of rods with the rods disposed in horizontal position on the table top. The bending assembly includes a pair of vertically mounted spaced apart cylindrical members or posts with one of said members rotatably mounted in the table top such that rotation of said one member with a rod disposed between said member is effective to bend the rod.

Abstract: The fast crystallizing polyalkyleneterephthalate resin compositions disclosed herein contain 0.05-4 percent by weight of a sodium salt of a hydrocarbon acid having the formula R.degree.(COO).sub.y Na.sub.z wherein R.degree. is a hydrocarbon group having a valency of y and having 1-25 carbon atoms therein, preferably 1-10 carbon atoms, y is an integer having a value of at least one, advantageously 1-10 and preferably 1-3, and z is an integer having a value of at least one and no greater than the value of y, this sodium salt of the hydrocarbon acid being in the form of a complex with a polymeric compound, which contains at least two recurring units of the formula --CH.sub.2 CH.sub.2 O--, together with reinforcing agents, fillers and/or additives and optionally a flow promoter selected from low molecular weight organic esters or polymers containing a recurring structure of [(CH.sub.2).sub.x O--].sub.

Abstract: The vitreous carbon disclosed herein is prepared from intimate uniform mixtures of powder or otherwise blendable form of 20-80% by weight of a solid phenolic-aldehyde Novolak resin and of 20-80% by weight of a solid phenolic-aldehyde resol resin, the percentages being based on the combined weight of the Novolak and resol resins, and the aldehyde in said Novolak resin comprising at least 50 molar percent, preferably substantially 100 percent, furfuraldehyde, together with a carbonaceous filler, preferably graphite, in a proportion as high as 76% by weight based on the total composition. Generally the graphite may comprise 30-70%, advantageously 35-65% and preferably 40-60% of the molding composition. The vitreous carbon is improved in electrical properties and in the capability of being shaped into large thin plates which are much more stress-free than otherwise produced.

Abstract: Novel, unsaturated vinylacetylene-terminated polyimides and processes for their preparation are disclosed herein. These new polyimides are derivatives of anhydride-terminated aromatic polyimides from which they can be prepared by amidation to provide new unsaturated amide groups having a terminal group containing the structure --CH.dbd.CH--C.tbd.C-- or --C.tbd.C--CH.dbd.CH--, hereinafter sometimes referred to as "conjugated enynes". These new compositions are more tractable than the original anhydride-terminated polyimides and can be converted at appropriate lower temperatures to crosslinked, insoluble, infusible polymers without by-product formation, thereby extending greatly the applications for which the aromatic polyimides can be employed. Moreover, these new polyimides can undergo the Diels-Alder type of addition with a large number of dienophiles. Certain monomeric materials are also described.

Abstract: Novel, unsaturated vinylacetylene-terminated polyimides and processes for their preparation are disclosed herein. These new polyimides are derivatives of anhydride-terminated aromatic polyimides from which they can be prepared by amidation to provide new unsaturated amide groups having a terminal group containing the structure--CH.dbd.CH--C.tbd.C-- or--C.tbd.C--CH.dbd.CH--, hereinafter sometimes referred to as "conjugated enynes". These new compositions are more tractable than the original anhydride-terminated polyimides and can be converted at appropriate lower temperatures to crosslinked, insoluble, infusible polymers without by-product formation, thereby extending greatly the applications for which the aromatic polyimides can be employed. Moreover, these new polyimides can undergo the Diels-Alder type of addition with a large number of dienophiles. Certain monomeric materials are also described.

Abstract: The compositions disclosed herein are suitable for thermosetting and conversion to vitreous carbon. They comprise intimate uniform mixtures of powder or otherwise blendable form of 20-80% by weight of a solid phenolic-aldehyde Novolak resin and of 20-80% by weight of a solid phenolic-aldehyde resol resin, the percentages being based on the combined weight of the Novolak and resol resins, and the aldehyde in said Novolak resin comprising at least 50 molar percent, preferably substantially 100 percent, furfuraldehyde, together with a carbonaceous filler, preferably graphite, in a proportion as high as 76% by weight based on the total composition. Generally the graphite may comprise 30-70%, advantageously 35-65% and preferably 40-60% of the molding composition. The vitreous carbon produced from these compositions have improved properties in electrical properties and in the capability of being suitably molded and carburized into large thin plates which are much more stress-free than otherwise produced.

Abstract: The rope handling device described herein comprises two cylindrical tubes adapted to have one pass longitudinally within the other, with a T or Y shaped journal attached to the end of the outer tube. An appropriate length of rope is positioned through the length of the inner tube and the rope is looped at the end extending out of the tubes and through a spreading journal or yoke, one portion of the loop extending out one side of the journal and another part extending out the other side of the journal and the completion of the loop extending out beyond the journal. The loop section of the rope has a stiffening means, such as a stiff spring wire embedded and securely fastened in the rope. The loop may be enlarged by pushing the rope through the spreader. The loop may be made smaller and tightened on any object encircled by the loop by pulling the rope through the tubes.

Abstract: Novel, unsaturated vinylacteylene-terminated polyimides and processes for their preparation are disclosed herein. These new polyimides are derivatives of anhydride-terminated aromatic polyimides from which they can be prepared by amidation to provide new unsaturated amide groups having a terminal group containing the structure --CH.dbd.CH--C.tbd.C-- or --C.tbd.C--CH.dbd.CH--, hereinafter sometimes referred to as "conjugated enynes". These new compositions are more tractable than the original anhydride-terminated polyimides and can be converted at appropriate lower temperatures to crosslinked, insoluble, infusible polymers without by-product formation, thereby extending greatly the applications for which the aromatic polyimides can be employed. Moreover, these new polyimides can undergo the Diels-Alder type of addition with a large number of dienophiles. Certain monomeric materials are also described.

Abstract: The compositions disclosed herein comprise compounds of the formula:DOOCArO-ArSO.sub.2 Ar'QAr'SO.sub.2 Ar-OArCOOD (I)and also derivatives and polymers therefrom or from the compound:X-ArSO.sub.2 Ar'QAr'SO.sub.2 Ar-Xin which compounds D is hydrogen, halogen or a monovalent hydrocarbon radical, preferably of 1-20 carbon atoms; Q is either --O-- or --SO.sub.2 --; Ar and Ar' are divalent aromatic groups including a multiplicity of aromatic groups linked by O, SO.sub.2, hydrocarbon groups, etc.; and X is preferably Cl but may be other halogen atoms. In these compounds, the central core or residue --ArSO.sub.2 Ar'QAr'SO.sub.2 Ar-- may be represented by A. Various derivatives and polymers having the core A are prepared, such as diamides of the formula R.sub.2 NOCArO-A-OArCONR.sub.2 ; polyester polymers of the formula [--OROOCArO-A-OArCO--]; polyarylate polymers of the formula [--ArCOOArO-A-OArOOCArCOO--]; polycarbonate polymers of the formula [--OCOOArO-A-OArOOCO--]; phenolic resins, and many other derivatives.

Abstract: The vitreous carbon disclosed herein is prepared from intimate uniform mixtures of powder or otherwise blendable form of 20-80% by weight of a solid phenolic-aldehyde Novolak resin and of 20-80% by weight of a solid phenolic-aldehyde resol resin, the percentages being based on the combined weight of the Novolak and resol resins, and the aldehyde in said Novolak resin comprising at least 50 molar percent, preferably substantially 100 percent, furfuraldehyde, together with a carbonaceous filler, preferably graphite, in a proportion as high as 76% by weight based on the total composition. Generally the graphite may comprise 30-70%, advantageously 35-65% and preferably 40-60% of the molding condition. The vitreous carbon is improved in electrical properties and in the capability of being shaped into large thin plates which are much more stress-free than otherwise produced.