Abstract: A spline-coupling structure in which at least one of male and female members has a press-fit guide face provided at its end opposed to the other member before press-fitting of the members. The press-fit guide face includes a plurality of guide face portions smoothly interconnecting the end and bottom lands of the spline teeth of the one member to form axially outwardly expanded arcs, a plurality of second guide face portions smoothly interconnecting tooth addendums of the spline teeth and the end to form axially outwardly expanded arcs, and a plurality of third guide face portions smoothly interconnecting tooth flanks of the spline teeth and the second guide face portion to form axially outwardly expanded arcs. The first, second and third guide face portions are connected smoothly to one another.

Abstract: The riveter of the invention comprises a shaft, a rolling nut, a jaw mechanism, a head frame, a rotary drive shaft, a clutch mechanism disengageably coupling the rolling nut with the rotary drive shaft, a generally cylindrical journal frame and a cylindrical main frame. After a blind rivet having a drill point is inserted into a nose piece of this riveter, the main frame and rotary drive shaft are rotated in a suitable manner, whereby the desired drilling of the rivet hole and riveting operation can be accomplished. The riveter may alternatively comprise a shaft, a rolling nut, a jaw mechanism, a head frame, a rotary drive shaft, a rear clutch mechanism disengageably coupling the rolling nut with the rotary drive shaft, a generally cylindrical journal frame, a cylindrical main frame, a front cover, a rear cover and a forward clutch mechanism.

Abstract: Disclosed herein is an immobilized enzyme inulin-D-fructotransferase carried in a specific anionic exchange resin with pores having a mode radius in the range of 75 to 2,000 angstroms. The immobilized enzyme of the present invention is effective in the production of DFA III from inulin.

Abstract: The present invention relates to improvements in a hydropneumatic gun for setting blind-rivet nuts used for integrally securing, for example, two panels to each other with a nut. In the hydropneumatic gun for setting blind-rivet nuts, an air piston fitted in air cylinder is moved to pressurize oil housed in the gun body, causing an oil piston to be retracted, so that a screw mandrel attached to the oil piston at its tip is retracted to the inner part of the gun body, thereby to exert a deforming force to a sleeve of a nut threadedly mounted on the screw mandrel. The hydropneumatic gun for setting blind-rivet nuts comprises an air motor to be rotated by compressed air, an air motor driving air guide passage, an air motor forward/reverse rotation direction changeover mechanism for switching the rotation direction of the air motor, and a power transmission mechanism for transmitting an air motor driving force to the screw mandrel.

Abstract: There is disclosed a process for the renewal of a deactivated insolubilized glucose isomerase which comprises subjecting an insolubilized glucose isomerase adsorbed onto an anion exchange resin, which has been used for isomerization of glucose into fructose to decrease its activity, to treatments by an aqueous mineral acid solution in combination with an aqueous alkaline solution, an aqueous electrolytic salt solution, an aqueous mineral acid or a mixture thereof to release adsorbed materials from the resin which is converted into a salt type and adsorbing fresh glucose isomerase to the regenerated resin to recover the activity of the insolubilized glucose isomerase.

Abstract: There is disclosed a process for the renewal of a deactivated insolubilized glucose isomerase which comprises subjecting an insolubilized glucose isomerase adsorbed onto an anion exchange resin, which has been used for isomerization of glucose into fructose to decrease its activity, to treatments by an aqueous mineral acid solution in combination with an aqueous alkaline solution, an aqueous electrolytic salt solution, an aqueous mineral acid or a mixture thereof to release adsorbed materials from the resin which is converted into a salt type and adsorbing fresh glucose isomerase to the regenerated resin to recover the activity of the insolubilized glucose isomerase.

Abstract: An apparatus in which a flexible web cleans contaminants from a member. A pressure member holds a portion of the flexible web in engagement with the member to remove the contaminants therefrom. The web is prevented from being entrained erroneously about the pressure member. The member being cleaned is preferably a photoconductive surface.

Abstract: A method for preservation of an aqueous glucose isomerase solution is disclosed in which an aqueous glucose isomerase solution is mixed with a an alkaline material to adjust its pH value within a range of from 9 to 12 whereby the aqueous solution can be stored at room temperature for a period not less than three days without microbial contamination, putrefaction, denaturation and deactivation of the glucose isomerase.

Abstract: There is disclosed a process for producing an insolubilized glucose isomerase useful for converting glucose into fructose comprising contacting a macroporous anion exchange resin with glucose isomerase to effect absorption of the isomerase on the resin, said resin having high porosity and high ion exchange capacity, whereby the resulted insolubilized glucose isomerase has high degree of adsorption, high activity retention and high activity yield.

Abstract: 3-(5,7-Dimethyl-2-hydroxy-4-oxo-6,8-decadienyl)-glutarimide is prepared by cultivating Streptomyces pluricolorescens var. yamashitaensis (S-885) ATCC No. 21956 in an aqueous nutrient broth containing a carbohydrate and a source of organic nitrogen until said broth achieves substantial antiviral activity, and recovering said antibiotic from said culture broth. This antibiotic is effective against the viruses of polio and A-type influenza.