Abstract: A top reading bituminous paving depth gauge is used to determine the thickness of paving layers. The gauge comprises a depressible rod operatively associated when a rod support system comprising an upper portion having a graduated measuring gauge fixed on the rod support system and a bottom support devise fixed to the lower end of the rod support system. The bottom or the support device acts as a foot for the measuring gauge and also acts to receive the lower portion of the depressible rod. The top reading bituminous paving depth gauge operates without any washers on the measuring depressible rod to prevent false measurements due to the presence of large aggregates.

Abstract: An electric circuit for a system to prevent accidental discharge of hot-mix asphalt at asphalt plants with multiple silos includes a manual switch which energizes a relay holding the circuit closed. A time delay relay is also energized to provide a time period to determine whether the process should continue. When the time delay times out, a solenoid is energized to open a hot mix storage silo. A closed circuit TV camera and a system of flashing lights are included to provide a fixed view of the loading area with a monitor at the control panel. When hot-mix asphalt is to be discharged into a truck, a switch is activated which causes a light beneath the bin to flash. This identifies the bin selected to open. The TV monitor is viewed and the position of the truck can now be visually confirmed along with the flashing light on the bin that has been activated. The manual switch must be pushed in order to complete the discharge of the hot-mix asphalt from the bin.

Abstract: This invention relates to a splice adhesvie for use with elastomeric substrates such as EPDM roofing materials and a method for splicing elastomeric substrates using splice adhesives. The splice adhesive of this invention combines halogenated pre-crosslinked isobutylene-isoprene copolymer butyl rubber, thermoplastic copolymer, hydrocarbon resin, quinoid cure mixture and solvent in a single formulation which is storage stable.

Abstract: The disclosure is directed to thermoset resinous compositions having utility in the area of surface coating and molding applications, the latter including the preparation of high performance composites and the use in reaction injection molding processes. The contemplated compositions are obtained by polymerizing a reaction mixture comprising a polyfunctional 2-oxazoline compound, a compound or oligomer containing a plurality of aromatic hydroxyl groups and a polyfunctional epoxide.

Abstract: Relates to a fertilizer product in granular form, to processes for making and using it. The granules have strength, sizes and weights suitable for mechanical dispensing and application to and into the soil. These granules combine particles of a nitrogen source of poor solubility in pH 7 water at 20.degree. C., that converts slowly to a useful form, together with a binder that holds these fine particles together.

Abstract: Process of furnishing slow release nitrogen to field soil comprising inserting and distributing the soil in particulate or granular form melamine, ammeline, ammelide, cyanuric acid, mixtures thereof, their salts, and mixtures thereof.

Abstract: Process of furnishing slow release nitrogen to field soil comprising inserting and distributing in the soil in particulate or granular form melamine, ammeline, ammelide, cyanuric acid, mixtures thereof, their salts, and mixtures thereof.

Abstract: No Bake foundry cores and molds for casting metals are prepared by using a binder comprising a polyol generally derived from alkoxylating an amine compound and a polyisocyanate. The binder is especially useful for casting non-ferrous metals, for example, the casting of aluminum, magnesium and other light weight metals. The cores and molds produced for casting aluminum and other light weight metals exhibit excellent shakeout while retaining other desirable core and mold properties. In addition the binders of this invention would have been observed to have an autocatalytic nature.

Abstract: Binder Compositions comprising a solution of furan foundry binders in an alkylated aromatic hydrocarbon solvent result in a more cost efficient binder. The cost efficiency is achieved without significant loss of physical properties of the foundry cores and molds which are formed using the binder. In instances the binder compositions of this invention exhibit improved physical properties.

Abstract: A copper chromite catalyst having improved activity is prepared by forming a basic copper ammonium chromate complex in a known manner. The complex is decomposed by sintering at temperatures near 300.degree. C. to yield a copper chromite catalyst of improved activity. The copper chromite catalyst is especially useful in liquid phase production of furfuryl alcohol from furfural by hydrogenation. The hydrogenation reaction takes place at low pressure, e.g. under 30 atmospheres, due to the increased activity of the catalyst.

Abstract: Foundry cores and molds for casting metals are prepared by forming a binder comprising a polyol, an isocyanato urethane polymer and a urethane catalyst. The foundry cores and molds of this invention are formed by processes known in the industry as the "cold box" process and the no-bake process. The binder is especially useful for casting non-ferrous metals, for example, the casting of aluminum, magnesium and other lightweight metals. The cores and molds produced for casting aluminum and other lightweight metals exhibit excellent shakeout while retaining other desirable core and mold properties.

Abstract: Dibasic esters and blends of dibasic esters, particularly diethyl malonate, dimethyl adipate, dimethyl glutarate and dimethyl succinate are used as part or all of the solvent in solvent systems for two-package resin compositions comprising a phenolic resin component and a polyisocyanate hardener package and, in three-package systems.

Abstract: A copper chromite catalyst having improved activity is prepared by forming a basic copper ammonium chromate complex in a known manner. The complex is decomposed by sintering at temperatures near 300.degree. C. to yield a copper chromite catalyst of improved activity. The copper chromite catalyst is especially useful in liquid phase production of furfuryl alcohol from furfural by hydrogenation. The hydrogenation reaction takes place at low pressure, e.g. under 30 atmospheres, due to the increased activity of the catalyst.

Abstract: Furan resin compositions containing aromatic polyester polyols exhibit improved performance as foundry hot box binders.

Abstract: A method is disclosed for making a paper product intended for use as an advertising piece or the like and consisting of a multiple paged brochure, a return mailing envelope and a return application or order form combined in a single package adapted in one form for non-mailing uses, such as a newspaper drop-in or hand-out, and in another form as a mailing package. The method may be performed on a web feed machine for making a large number of packages from a single substantially continuous web of material. It consists essentially of a number of foldings of a web along longitudinal fold lines, a number of perforations of the web along longitudinal lines, and a number of applications of adhesive to the web, followed by transverse severing of the folded, perforated and adhesively sealed web to separate individual packages from the web, all of which operations may be performed as the web moves continuously through a forming machine.

Abstract: Apparatus and method are disclosed for adjusting the entry angle of a continuous web into an envelope-making machine. The entry angle of the web is capable of adjustment even though web supply roll, printing means, splicer, and other equipment normally located before the feed end of an envelope making machine are stationary and not attached to the envelope-making machine. The apparatus for adjusting web angle includes a first turn bar unit; a plate attached to the body of the envelope-making machine near the feed end of the machine, which can swivel about a point, the means of attachment being the point about which the plate swivels; and a second turn bar unit attached to the swivel plate. As the web advances into the first turn bar unit it is flat. The first turn bar unit turns the web so that as it moves from the turn bar unit it is on its edge or in edgewise orientation. The web remains on its edge as it enters the second turn bar unit.