Two contiguous conveyor belts for threading a pulp web tail through a dryer to avoid bunching and consequent tearing or cutting of the web tail by means of a paper tape such as those found on adding machines between the web and one belt. The paper tape allows relative slippage between one belt and the web tail so that the web does not have to try to conform with the local speed differences between the belts as they pass successively through direction reversing rolls.

A porous electroplatable body is interiorly electroplated and the like by: making an at least substantial initial capacity filling of all or at least a portion of the void spaces in the body with an appropriate electroplating or other deposit-releasing bath solution or other dispersion; effecting subsequent immersion of the bath-replete body in a non-plating or non-depositing electroconductive liquid media; then following these steps by application of plating current to and through the bath cont...

Supported iridium-containing hydrocarbon conversion catalysts which are at least partially deactivated due to the deposition of carbonaceous residues thereon during contact with hydrocarbons are regenerated by (1) contacting the catalyst in a reaction zone with oxygen to burn at least a portion of the carbonaceous residues from the catalyst, (2) contacting the carbonaceous residuedepleted catalyst in a reaction zone with hydrogen at an elevated temperature to reduce a substantial portion of the ...

Process for the separation of water from mixtures of water and organic or inorganic compounds, soluble in water, by contacting the mixtures against an organic polymeric membrane, and withdrawing at the other side of the membrane a mixture having a higher concentration of water.

Supported iridium-containing hydrocarbon conversion catalysts which are at least partially deactivated due to the deposition of carbonaceous residues thereon during contact with hydrocarbons are regenerated by (1) contacting the catalyst with oxygen to burn at least a portion of the carbonaceous residues from the catalyst, (2) contacting the carbonaceous residue-depleted catalyst with an elemental halogen-containing gas at a temperature of less than about 850.degree.F., (3) contacting the treate...

The growth of vegetation is controlled by subjecting the vegetation to the phytotoxic effects of a compound of the formula ##STR1## wherein Y is selected from the class consisting of oxygen and sulfur; wherein Z and Z' are each selected from the class consisting of oxo (>C.dbd. O) and oxy (--O--), provided that Z and Z' are different; wherein R is alkyl of not more than four carbon atoms; wherein X is selected from the class consisting of alkyl of not more than four carbon atoms, alkoxy of no...

Startup procedure for carbon black plant comprising producing hot combustion gases low in free oxygen, bringing the hot combustion gases into indirect heat exchange relationship with water to produce a high pressure, saturated stream of steam which is reduced in pressure to produce superheated steam, and cooled hot combustion gases, and using the superheated steam stream to warm bag filters to operating temperatures before starting operation of the plant to produce carbon black. In a preferred e...

A metal work sheet is prepared for routing operations by securing it to a backing panel with a releasable contact adhesive. The coated panel is initially covered by a release sheet, which is removed prior to the placement of the metal work sheet. Areas isolated by the routing can be pulled free of the adhesive, and the remaining work sheet can also be removed without adhesive contamination of the metal parts.

A method and apparatus for the resynchronization of the transport of movie film (image carrier) with the movement of another information-carrying medium such as sound tape film. Speed control and synchronization signals are produced by means of sensing the sound tape movement which provides control synchronization signal, monitoring the image frames for each sequence on the movie film by means of a counter, and comparing in a coincidence circuit the image frame count signal with the signal from ...

A technique is provided for allocating access to time slots used for transferring data between nodes in a time multiplexed network, whose bandwidth is divided into cycles. The cycles are in turn divided into control slots for control signaling and data slots for transferring data. The slots allocated to a primary home node may be temporarily allocated to a temporary home node, in which case the temporary home node, instead of the primary home node, then temporarily has the write access to the sl...