Abstract: Plastic sheets are fed along a horizontal path from the bottom of a stack to a box making machine by a conveyor. The rear end of the stack rests on a metering bar located above the path at the rear end of the stack so that when the lowermost sheet is fed by the conveyor, its rear end drops and air jets from an air knife are introduced in the space between the stack and the lowermost sheet at the rear end of the stack to overcome friction forces and separate the lower most sheet from the stack as the sheet is conveyed along the path.

Abstract: An improved non-thermal plasma apparatus for treating NOx bearing gas streams has a plasma reactor and an inlet and outlet. The plasma reactor is equipped with a plurality of dielectrically-coated electrodes between which a selected voltage is applied to generate a non-thermal plasma environment for driving selected electro-chemical reactions. A predefined voltage is applied across the electrodes to create microdischarges in the exhaust gas stream to convert nitric oxides into primarily nitrogen dioxides. The electrodes are constructed of metal plates, and a fluoropolymeric material, such as fluorocarbon, as the dielectrics. The electrodes are arranged in parallel formation and alternating between positive and negative charges. In one embodiment, fluoropolymeric spacers are positioned between adjacent electrodes and may be configured with selected thicknesses to provide a plurality of desired reaction zones or gaps therebetween.

Abstract: An improved non-thermal plasma treatment method and apparatus for the pretreatment of nitric oxide-bearing exhaust gas with ethanol, either by vapor absorption or direct vapor injection, is described. Advantageously, the high vapor pressure of ethanol permits a significant portion of the ethanol to be absorbed. Moreover, the solubility of ethanol permits the ethanol to be readily scrubbed from the exhaust gas, along with the nitrogen dioxides converted from the nitric oxides. The non-thermal plasma apparatus comprises a non-thermal plasma reactor having a chamber which provides a plurality of electrodes. The apparatus further comprises an inlet and an outlet connected to the reaction chamber, permitting the exhaust gas to enter and leave the chamber. In one embodiment, the inlet is further connected to a diverter equipped with an injector, which diverts a portion of the gas stream through the ethanol bath before reinjecting the ethanol-bearing gas stream into the inlet.

Abstract: An improved non-thermal plasma apparatus for treating NOx bearing gas streams has a plasma reactor and an inlet and outlet. The plasma reactor is equipped with a plurality of dielectrically-coated electrodes between which a selected voltage is applied to generate a non-thermal plasma environment for driving selected electrochemical reactions. A predefined voltage is applied across the electrodes to create microdischarges in the exhaust gas stream to convert nitric oxides into primarily nitrogen dioxides. At least a portion of the gas is diverted through an ethanol bath before entering the reactor. The dielectric is preferably a fluoropolymeric substance.

Abstract: A fluid pressure control system for limiting the torque output of a positive displacement hydraulic motor (21) for rotating a screw anchor (11, 11′) into the ground. A normally closed solenoid operated control valve (76) is mounted in a bypass line (86) between the high pressure supply line (30) and the low pressure exhaust line (36). A plurality of electro-hydraulic switches (72) are arranged for setting at different predetermined fluid pressures and are in fluid communication with a differential pressure sensing chamber (63). Upon turning on of a selected switch (72) having the desired pressure level, the reaching of the desired pressure level activates the selected switch (72) for actuation of solenoid operated control valve (76) to move control valve (76) to an open position as shown in FIG. 3 to bypass fluid from high pressure line (30) to exhaust line (36) to limit the torque output of the motor (21).

Abstract: An improved non-thermal plasma treatment method and apparatus provide for the pretreatment of nitric oxide-bearing exhaust gas with ethanol, either by vapor absorption or direct vapor injection. Advantageously, the high vapor pressure of ethanol permits a significant portion of the ethanol to be absorbed. Moreover, the solubility of ethanol permits the ethanol to be readily scrubbed from the exhaust gas, along with the nitrogen dioxides converted from the nitric oxides. The non-thermal plasma apparatus comprises a non-thermal plasma reactor having a chamber which provides a plurality of electrodes. The apparatus further comprises an inlet and an outlet connected to the reaction chamber, permitting the exhaust gas to enter and leave the chamber. In one embodiment, the inlet is further connected to a diverter equipped with an injector, which diverts a portion of the gas stream through the ethanol bath before reinjecting the ethanol-bearing gas stream into the inlet.

Abstract: A differential fluid pressure assembly (10) has an inner differential fluid pressure gauge (14) enclosed by an outer fluid-tight housing (12). A low pressure fluid inlet (34) is in fluid communication with the space (32) defined by the outer housing (12). A high pressure fluid inlet (38) extends through the outer housing (12) and is in fluid communication with a bourdon tube (44) within the differential pressure gauge (14). Low pressure fluid inlet (34) is connected to a low pressure line (36) extending to a low pressure fluid source. High pressure fluid inlet (38) is connected to a high pressure fluid line (40) extending to a high pressure fluid source for measurement of the differential fluid pressure between a low pressure source and a high pressure source.

Abstract: A torque indicator system for use while rotating a screw pile into the ground with a positive displacement hydraulic motor, includes first and second hydraulic cylinders having their rods connected together in a manner such that net pressure forces are created in response to the high inlet and low outlet pressures of the motor. A pressure gauge mounted on one of the cylinder assemblies reads the working pressure drop across the motor, which is directly related to its output torque.

Abstract: A mounting bracket apparatus for securing a relatively heavy item of equipment such as an electrical transformer to an upstanding object or structure such as a utility pole. The mounting bracket employs a plurality of elongated and symmetrically shaped object contact members that each contact the pole at spaced gripping locations to enhance the frictional contact force.

Abstract: Leguminous flours such as pea flours can be substituted for at least a portion of extenders (such as wheat flour) and/or fillers in glue compositions comprising aldehyde condensation resins such as urea-formaldehyde and/or phenol-formaldehyde resins without loss of bond strength. Such glue compositions provide lower storage viscosity and are often less expensive than conventional compositions. The glue compositions can be used in cured laminates of lignocellulosic materials such as plywood.

Abstract: Apparatus is described by means of which sheet metal strip, unwound from a coil construct having a vertical axis of rotation, is fed to a strip processing station at regulated rates. The feed rate control mechanism is particularly adapted to accommodate strip that is twisted prior to existing the apparatus to enable it to enter the strip processing station in a generally surface-horizontal attitude. The apparatus is arranged to occupy a minimum amount of floor space.

Abstract: A tool is described which is particularly adapted for detaching by peeling sheet metal strip from a wound construct containing a plurality of coiled strips interconnected by intermittently spaced tabs that bridge the parting lines between adjacent strips. The tool is effective to fracture the tabs without distorting or marring the adjacent strip material.

Abstract: Apparatus is described by means of which sheet metal strip, unwound from a coil construct having a vertical axis of rotation, is fed to a strip processing station at regulated rates. The feed rate control mechanism is particularly adapted to accommodate strip that is twisted prior to exiting the apparatus to enable it to enter the strip processing station in a generally surface-horizontal attitude. The apparatus is arranged to occupy a minimum amount of floor space.

Abstract: Method and apparatus are described by means of which the slitting head in a slitting line for severing sheet metal web material into strips is utilized to transfer the leading end of the web material from the uncoiler to the recoiler for attachment thereto during the feed-up operation. The invention enables the concerned operation to be performed more safely in reduced time and with less effort and manpower than heretofore.

Abstract: Apparatus is described for detaching a coiled strip from a wound sheet material construct containing a plurality of coiled strips interconnected by intermittently spaced tabs of partially sheared material that bridge the parting lines between adjacent strips. The apparatus is effective to separate the selected coiled strip from the construct and to thereafter pay out the strip to a point of use.

Abstract: Apparatus is described for slitting an elongated web of sheet metal to produce a plurality of strips that are retained in the web during coiling by intermittently spaced connections. The connections are formed by partially sheared tabs that are easily broken apart for ultimate separation of the strips. Also described is a slitting cutter configuration particularly adapted to produce partially sheared tabs.

Abstract: Apparatus for separating individual coils from a coil construct of wound sheet metal web material that has been partially slit along parallel lines to produce frangible parting lines between adjacent coils. The apparatus includes clamping members adapted to engage the construct on the inner and outer peripheral surfaces of the construct and on opposite sides of a parting line and means for effecting relative movement between the clamping members and a concomitant complete separation of the coil from the construct.

Abstract: Apparatus is described for detaching individual strip coils from a construct of wound sheet metal web material that has been partially slit along parallel lines to produce parting lines containing frangible connections between adjacent coils. The coil detaching means includes a self-contained rotatable mount for the detached coil which becomes effective upon detachment of the coil from the construct to permit dispensing of the strip material without need to transfer the coil from the apparatus to an uncoiler.

Abstract: Apparatus is described for separating individual coils from a construct of wound sheet metal web material that has been partially slit along parallel lines to produce parting lines containing frangible connections between adjacent coils. The apparatus is carriage-mounted and includes a mandrel assembly adapted to enter the construct center and carrying fluid operated means for anchoring the construct and for displacing the coil to be removed from the remainder of the construct thereby breaking the connections attaching adjacent coils thus to separate the selected coil from the construct.

Abstract: The disclosure includes method and apparatus for handling elongated webs of sheet metal, and a sheet metal construct formed as an intermediate product and comprising a parent coil pre-divided into a plurality of daughter coils. In one method sequence, separation can be completed by the end user of the coil just before it is fed into a press or the like. In another method sequence, separation is completed during wrapping of the parent coil. In still other sequences, completion of separation can be accomplished at stages intermediate these two. Slitting may be done directly off a mill. Edge trim strip may be wound as part of the parent coil to simplify scrap handling, and may be used to protect the coil in transit.