Abstract: A lightweight pushrod assembly for internal combustion engines, such as motorcycle racing engines, includes a top pushrod and a bottom pushrod which are joined by a pushrod tappet. The pushrod tappet is mounted for reciprocating movement in a pushrod stanchion, and the stanchion is secured to the engine such that support is provided to the pushrod assembly at a position near the middle of the entire pushrod assembly. The pushrod stanchion also provides part of a pushrod housing assembly, with additional upper and lower housings provided to enclose the upper and lower pushrods. The lower end of the top pushrod and the upper end of the bottom pushrod preferably engage the tappet in a ball and socket joint relation to allow limited radial movement of the top and/or bottom pushrods to minimize the stresses on the pushrods. The supported pushrod assembly may be provided in kits for installation of the pushrod assemblies on existing engines.

Abstract: An internal combustion engine has a cylinder head with a combustion chamber defined by a depression in the head. The raised face surface of a piston extends into the combustion chamber in the cylinder head as the piston approaches top dead center, and creates turbulent squish currents within the chamber as closely matching surfaces on the piston face and on the walls of the combustion chamber in the head force gases out from between these surfaces. The turbulence helps to prevent autoignition and allows higher compression ratios than would otherwise be possible.

Abstract: A butterfly type motorcycle carburetor including a housing having an induction passage and a venturi intermediate the ends of the passage, a butterfly valve assembly positioned in the induction passage downstream from the venturi and a fuel bowl mounted on the housing and forming a fuel reservoir below the induction passage. A main discharge tube is mounted in the housing with one end extending into the venturi in the induction passage and the other end into the fuel reservoir in the fuel bowl. An accelerator pump system is provided in the carburetor which includes a discharge nozzle that extends into the induction passage downstream from the venturi for directing fuel discharged from the nozzle toward the butterfly valve. An enrichment system is provided in the carburetor which can be selectively set at any position. A low speed air/fuel metering system is provided in the housing for low speed operation.

Abstract: A thin flexible pouch-packet is disclosed which has concave deformations in the side wall to enhance opening of the packet.

Abstract: A pouch-packet having walls with V-shaped or Y-shaped separation-enhancing deformations formed therein, and the method and apparatus for making the same are disclosed herein.

Abstract: Diphenylamine-formaldehyde containing N,N,N',N'-tetraphenyldiaminomethane as the principal product of reaction is obtained by:(1) In a first stage, heating together a mixture of diphenylamine and formaldehyde in a molecular ratio of from 3:1 to 1:1.5 at a temperature of up to 110.degree. C. until evolution of water is substantially complete, then in a second stage,(2) heating the resultant mixture at a temperature of from 120.degree. C. to a maximum of 140.degree. C. with exclusion of oxygen or oxidizing agents, and removing water and formaldehyde from the reaction mixture until the proportion of bis-(N,N-diphenylaminomethyl)ether present in the mixture falls to below 10% by weight.The molten reaction product is preferably converted to a solid product by pouring into a stirred, relatively cool immiscible liquid, and coating the resulting granules with a small amount of magnesium oxide or magnesium carbonate.

Abstract: Anthelmintically active 3-loweralkyl-1,2,4-oxadiazoles are stabilized by the formation of homogeneous mixtures thereof with water and with certain alcohols, the molar ratio of stabilizer to oxadiazole being adjusted to within 0.1:1 to 2:1 to achieve required stability.