Abstract: The present invention relates to a method an apparatus for fabricating a component by a direct laser process. One form of the present invention contemplates a gas turbine engine blade having an abrasive tip formed directly thereon.

Abstract: A voluntary closing prosthetic prehensor includes a locking mechanism which may be locked into any position, and released with a small amount of force. With locking enabled, the prehensor opens and closes normally until the user applies sufficient tension to the prehensor cable after the prehensor has closed upon an object. Then, a lever arm attached to the cable rotates, pulling a second cable which causes an elliptical cam to rotate such that its wider portion presses against a pawl, causing the pawl to rotate into engagement with a toothed sector, locking the prehensor closed. When the user releases the force on the cable, the lever arm is biased to return to its normal position, but the prehensor stays closed because the pawl remains engaged with the sector. The cam includes a ratcheting drum which takes up the slack in the second cable. To release the prehensor, the user applies a small amount of force to the first cable, moving the lever arm and pulling the second cable, which rotates the cam.

Abstract: A method and apparatus for improved user interaction and feedback on a computer system display. Interapplication dragging upon a user interface display is provided allowing a user to select a first item in a first window and move that first item to a second window which is under control of second process. Feedback is provided in the second window under control of the second process if the second application program can accept the data. In addition, other improved user interface actions are described, such as improved selection feedback, improved navigation, and improved completion feedback.

Abstract: A method and apparatus for associating routines for controlling user actions in a computer-controlled display system. Each of a first of plurality of routines may be linked for controlling the computer-controlled display system when the system is in a first context. Each of the first plurality of routines may control different aspects of the functioning of the display system, such as the functioning of various user interface objects on the display. Further, a second plurality of routines may be linked for controlling the system when the system is in a second context. Each of the pluralities of routines are activated when the system is either in the first or second context.

Abstract: A continuous process for producing high-purity methyl chloroformate, by reacting liquid methanol with an excess of phosgene at no more than 20.degree. C., preferably about 15.degree. C. Phosgene is absorbed in a large circulating load of pre-formed chloroformate that has also methanol added to it. The product stream is treated to remove light ends, and a 98% pure product results.

Abstract: The quality of dialkyl dithiophosphates as flotation promoters is improved by addition to the neutralized acid of small quantities of a trialkyl amine. More important, promoters thus stabilized exhibit markedly increased storage life and substantially no tendency to corrode steel. Shipping and storage of these products is thus facilitated.

Abstract: High-purity dialkyl thionocarbamates are economically produced by reacting suitable xanthates with alkyl amines in the presence of a dissolved catalyst. Nickel and palladium salts are preferred catalysts. Thionocarbamates produced by the method of the invention are a desirable flotation reagent for certain refractory copper sulfide ores.

Abstract: The quality of dialkyl dithiophosphates as flotation promoters is improved by addition to the neutralized acid of small quantities of a trialkyl amine. More important, promoters thus stabilized exhibit markedly increased storage life and substantially no tendency to corrode steel. Shipping and storage of these products is thus facilitated.