Abstract: The core box has a drag and a cope forming a mold cavity for forming a sand base core. This sand is injected into the cope and the air in the cavity is vented through vents remote or spaced away from where the sand is inserted. These vents are usually in the drag, but may also be in the cope. In each vent adjacent the cavity is a cylindrical cup-shaped plug having slotted perforations in its bottom narrower than the diameter of the sand grains. The diameter of this perforated vent plug is at least 50% greater and preferably at least twice the width of the cavity, slot, or groove at the vent whereby air can be vented along the cavity. Furthermore, the plug having the perforations may be contoured to the groove or that portion of the cavity in which the vent is located so that air can also be vented from the sides of the cavity or groove.

Abstract: An improved hydroconversion process for carbonaceous materials wherein a dihydrocarbyl substituted dithiocarbamate of a metal selected from any one of Groups IV-B, V-A, VI-A, VII-B, and VIII-A of the Periodic Table of Elements or a mixture thereof is used as a catalyst precursor. The improved process is effective for both normally solid and normally liquid carbonaceous materials and for carbonaceous materials which are either solid or liquid at the conversion conditions. The hydroconversion will be accomplished at a temperature within the range from about 500.degree. to about 900.degree. F., at a total pressure within the range from about 500 to 7000 psig and at a hydrogen partial pressure within the range from about 400 to about 5000 psig.

Abstract: An improved hydroconversion process for carbonaceous materials wherein a monohydrocarbyl substituted dithiocarbamate of a metal selected from Group VIII-A of the Periodic Table of Elements or a mixture thereof is used as a catalyst precursor. The improved process is effective for both normally solid and normally liquid carbonaceous materials and for carbonaceous materials which are either solid or liquid at the conversion conditions. The hydroconversion will be accomplished at a temperature within the range from about 500.degree. to about 900.degree. F., at a total pressure within the range from about 500 to 7000 psig and at a hydrogen partial pressure within the range from about 400 to about 5000 psig.

Abstract: A tufted pile fabric having two different levels of cut pile in alternate adjacent rows and a lower level uncut loop pile selectively disposed in each row in place of the cut pile, and a tufting machine and method for producing the fabric. The machine has a needle bar with adjacent needles alternately penetrating a backing fabric to two different depths, and co-act with hooks set at corresponding levels. The hooks all have spring clips which hold loops on the hooks to be cut unless the yarn is backdrawn sufficiently to release the clip and allow the loop to be released. A yarn feed mechanism having chain driven notched slats of different depths with a shiftable yarn guiding finger directs yarn for each needle into the desired notch to control the amount of yarn fed to each needle and thus the patterned array.

Abstract: The present invention shows an air conditioning system for use on an automobile. The compressor and condenser are located under the hood of the automobile with an evaporator being located inside of a console shaped assembly within the interior of the automobile. Intake louvers are located between the front seats with a blower forcing the air through a duct formed by the console over the transmission tunnel. The return air moves through an evaporator coil located within the console to refrigerate the air. The refrigerated air is then turned approximately 180.degree. and discharged above the console area. Additional louvers for cooling the sides are optional.