Abstract: Herein disclosed is an electrostatic precipitator for removal of corrosive particles from a corrosive laden gas passing therethrough. The electrostatic precipitator comprises a shell having a corrosive resistant lining secured thereto. A corrosive resistant support plate is secured to the shell of the precipitator and first and second sets of juxtaposed corrosive resistant collector electrode tubes are suspended from the support plate. A corrosive resistant top support grid is spaced above the support plate and insulated from the shell and a corrosive resistant bottom guide grid is spaced below the first and second sets of collector electrode tubes. A plurality of corrosive resistant discharge wires are secured between the top support grid and the bottom guide grid and pass substantially through the center of the tubes in the first set.

Abstract: In a roll-end spindle coupling, a thrust ring having a spherical surface that coacts with a flex hub is maintained in such coacting relation by an end ring secured to the roll-end coupling sleeve.

Abstract: Herein disclosed is a corrugating machine for forming a single-face corrugated paper web from a pair of webs passing therethrough. The corrugating machine comprises a first corrugating roll and a second corrugating roll parallel to and in meshing engagement with the first corrugating roll, the second corrugating roll carries a web of corrugated paperboard material around a portion of the outer periphery thereof. A floating guide continuously urges the corrugated web against the outer periphery of the second corrugating roll and is automatically self-adjusting for compensating for irregularities in the second corrugating roll and the corrugated web. An adhesive roll is in contact with the corrugated web extending around the second corrugating roll for applying adhesive to the tips of flutes on the corrugated web. A pressure roll carrying a facing web on the outer periphery thereof is in contact with the adhesive covered tips of the corrugated web forming the single-face corrugated web.

Abstract: Electrostatic precipitator apparatus for cleaning a particle-laden gas flowing therethrough including a shell with a gas inlet duct and outlet duct, spaced collector electrodes suspended within the shell defining gas passages therebetween, discharge electrodes suspended within the gas passages for ionizing particles in the gas for collection by the collector electrodes, and hoppers suspended below the collector electrodes for collecting the particles dislodged therefrom. The inlet duct includes a gas distribution baffle having a rigid pervious upper portion and flexible substantially impervious lower portion, preferably a chain curtain, to permit particle accumulations in the inlet duct to pass into the shell for collection in the hoppers.

Abstract: An inclined track adjacent a dry coke cooler includes a counterweighted and pivoted hot coke container hoist that coacts with a hot coke container to raise it to a level above the coke cooler and then to lower it onto the open top of the coke cooler. After the hot coke has been discharged into the coke cooler, the hot coke container is returned to the car on which it travels alongside a coke oven battery to receive coke pushed from an oven chamber.

Abstract: The composition of matter of N-chloroformamide is disclosed along with a method for preparing the same. The N-chloroformamide normally exists in its tautomeric imidol form. The N-chloroformamide readily reacts with amines to form substituted ureas.

Abstract: A gear type flexible shaft coupling made up of identical halves each including an externally toothed hub surrounded by an internally toothed sleeve in meshing engagement therewith, sleeve connecting flanges with fasteners threaded alternately from opposite sides of the sleeves, an aligning ring extending between the facing sleeves to radially align the sleeves, an axially outer flexible metallic seal ring assembly between the hub and sleeve, a portion of such sealing ring assembly being abuttable against a shoulder on the hub to maintain a substantially uniform lubricant reservoir within the coupling half, an axially inner non-metalic removable sealing cup closing the inner end of the sleeve forming a closed lubricant chamber in each half, such cup including a detent to maintain the cup in position when the coupling halves are disassembled, and elastomeric, axially-spaced sealing rings in the tapered bores of the hubs to facilitate removal of the hubs from the shaft.

Abstract: A sealing arrangement for a door of a coke oven chamber includes a fluid channel around the door carrying gases from a coke oven chamber. Means is provided that subdivides the channel into separate fluid channelways and means is provided for conducting the gases from each channelway into an adjacent end heating flue in the heating walls defining the coke oven chamber.

Abstract: A coke oven door has a primary seal that includes a first metal knife edge in contact with a door jamb first sealing surface, and a secondary seal that includes a second metal knife edge in contact with a door jamb second sealing surface. The plenum or space between the sealing knife edges is maintained at super atmospheric pressure by flowing coke oven gas into the plenum. In a modification of the invention, the secondary seal includes a metal strip in contact with an elastic material; the plenum between the sealing surfaces being also pressurized above atmospheric pressure and purged of coke oven gas.

Abstract: A blank feeding device for feeding successive bottom blanks from a stack of blanks into adjacent processing machinery includes a feed table for supporting the stack of blanks thereon; a gate spaced above the feed table and defining an opening therebetween through which the bottom blanks are advanced into adjacent processing machinery; a reciprocating suction feeder beneath the stack for applying suction pressure to the bottom blank during the forward stroke of the suction feeder for advancing the bottom blank through the opening; and an adjustable backstop including a manually pivotable portion in contact with the trailing edge of the blanks in the stack for maintaining a portion of the weight of the stack off the bottom most blank and automatically positionable along the feed table to accommodate different size blanks.

Abstract: A continuously lubricated gear type coupling for connecting a pair of substantially co-axially aligned rotatable shafts comprising: a hub having outwardly extending gear teeth and secured to an end of one of the shafts by a key for rotation therewith; a sleeve surrounding the hub and having inwardly extending gear teeth in meshing engagement with the outwardly extending gear teeth and connected to the other shaft for rotation therewith; a plurality of inlet ports for continuously supplying a lubricant to the inwardly and outwardly meshing gear teeth; a plurality of outlet ports for removal of the lubricant from the coupling after the lubricant has lubricated the inwardly and outwardly extending gear teeth; and an annular impeller surrounding the one shaft and secured to the hub to direct the flow of air or corrosive gases away from the key and keyways of the coupling upon rotation thereof thereby preventing the air or corrosive gases from entering the coupling through the keyway and causing corrosion thereof.

Abstract: A quenching track extends alongside of and away from a coke oven battery, and coke receiving apparatus is movable on the track to a remote location at which supporting structure for the coke receiving apparatus is located. Associated with the supporting structure is conveyor means onto which incandescent coke is discharged from the coke receiving apparatus. Coke on the conveyor means is quenched, and vapors arising from the coke during quenching are conveyed to a stack and are discharged to the atmosphere. Fumes arising from the coke receiving means during discharging of the coke are withdrawn into a gas scrubber and cleaned therein. From the scrubber the cleaned fumes are discharged to the stack and to the atmosphere.Various types of coke receiving means are disclosed, and various types of supporting means and arrangements of conveyors at the remote location are also disclosed.

Abstract: A method for decreasing the naphthalene concentration in debenzolized light oil for greater naphthalene removal comprises pumping the primary light oil condensate and oil bled from a naphthalene scrubber or oil type final cooler to a level above the topmost additional tray in the top portion of a wash oil still.

Abstract: A shear sleeve having a shearing zone of reduced cross-sectional area is fixed at the roll end portion of the shaft of a spindle coupling. The sleeve carries means coacting with a roll end sleeve for rotating it and the shaft. Mating surfaces of the shear sleeve and shaft are in contact during normal operation to prevent bending of the shear sleeve. When the shear sleeve shears under excessive torsional stress the surfaces separate and one end of the shear sleeve rotates freely on a bearing, or bearings, mounted on the shaft.

Abstract: A cleaning tool for door jamb surfaces of a coke oven chamber includes: a sleeve fixed to a frame that is movable toward the door jamb; a plunger resiliently mounted in the sleeve; a support fixed to the plunger; and a multi-sided scraper tool rotatably mounted to the support. Two such cleaning tools may be used to clean the inside and the outside door jamb surfaces.

Abstract: Herein disclosed is a torsionally resilient shaft coupling for serially transmitting torque and to provide a substantial amount of torsional flexibility between a pair of axially spaced coaxially aligned shafts. The torsionally resilient shaft coupling comprises a first inner sleeve and a second inner sleeve coaxially aligned with and axially spaced from the first inner sleeve. A first outer sleeve is connected to a first of the shafts and surrounds the first inner sleeve forming a first annular space therebetween. A second outer sleeve is connected to a second of the shafts and surrounds the second inner sleeve forming a second annular space therebetween. At least one first annular torsionally resilient member is interposed in the first annular space and is connected to the first inner sleeve and to the first outer sleeve to provide primary torsional flexibility between the first outer sleeve and the first inner sleeve.

Abstract: The delta-4 isomer of tetrahydrophthalic anhydride is isomerized in the presence of a catalytic amount of palladium and selected acid anhydrides that liquify the normally solid delta-4 isomer at a temperature below its melting point. This permits the isomerization to be effected at relatively low temperatures and in relatively short times to produce a mixture of isomers of tetrahydrophthalic anhydride that is in the liquid state at temperatures in the range of room temperature.

Abstract: Previously folded corrugated paperboard blanks are stacked, aligned, and discharged in stacks of preselected number by slowing the advance of such blanks advancing in serial alignment to form a stream of shingled blanks; counting a preselected number of the blanks; momentarily interrupting the stream in response to counting to form spaces between preselected numbers of the blanks; detecting the spaces; in response to such detecting, stopping and then releasing the preselected numbers of blanks for collection in a stack; simultaneously aligning all the blanks in the stack; and discharging the aligned stack perpendicular to the stream of shingled blanks.

Abstract: Apparatus for folding and sealing corrugated paperboard blanks having scores and slots therein comprising a blank feeding means, a conveying means to move the blanks including top and/or bottom folding means, such bottom folding means extending along the full length of the folding apparatus, such top folding means extending over the upstream portion of the folding apparatus, guide means for laterally guiding the panels to be folded, and an alignment means at the outlet end of the apparatus to align the folded panels.

Abstract: Tennis courts, basketball courts, volleyball courts, all weather running tracks and other similar recreational areas having defects in their surfaces are resurfaced by laying multiple layers of a free floating flexible material over the defective surface and then applying a standard asphalt resurface over the top layer of free floating flexible material. Surfaces prepared in this manner have improved freeze thaw stability, longer life and do not develop reflective cracking.