Abstract: A process and apparatus for surface treating boundary walls of an interior chamber formed in a workpiece. Nozzle members are inserted through access openings which communicate with opposite sides of the interior chamber and are positioned so that discharge openings of the nozzle members are disposed in closely adjacent and directly opposed relationship. High velocity streams of carrier fluid having entrained solid abrasive media therein are simultaneously discharged from the nozzle members so that the opposed streams directly violently impact and are deflected radially outwardly for impact against the surrounding boundary walls. The opposed nozzle members are preferably simultaneously synchronously moved lengthwise of the chamber to effect treating of the boundary walls.

Abstract: A device for finishing workpieces, such as automobile wheels. The device includes a bowl assembly containing polishing media therein, and a drive assembly including a rotatable turret which carries the wheels thereon so that same are orbitally driven through the polishing media. A cam arrangement is provided which essentially continuously adjusts the angle of the wheels relative to the polishing media by pivoting the wheels about respective vertical axes. The device is additionally provided with a vertical drive assembly which allows vertical oscillation of the wheels relative to the media, and the polishing device also permits adjustment of the pitch or rake angle of the wheels relative to the horizontal.

Abstract: A process and apparatus wherein a bulk quantity of parts is positioned in a channel-like treating chamber which is subjected to vibration to cause the flowable mass of parts to slowly undergo a corkscrew-like tumbling movement. One or more nozzle arrangements are positioned adjacent the treating chamber so that each nozzle has its discharge orifice position closely adjacent the flowing bulk mass in the chamber to effect high-velocity blasting of a selected region of the flowing mass. The nozzle emits a high-velocity spray which is defined by a carrier medium such as air having small abrasive particles or grit embedded therein. The abrasive spray contacts a concentrated area which has relatively small transverse and longitudinal extent over the flowing mass in the chamber. Due to its high-velocity discharge, the spray is effective in penetrating at least partway into the depth of the flowing mass to abrade the parts.

Abstract: A process and apparatus for surface treating boundary walls of an interior chamber formed in a workpiece. Nozzle members are inserted through access openings which communicate with opposite sides of the interior chamber and are positioned so that discharge openings of the nozzle members are disposed in closely adjacent and directly opposed relationship. High velocity streams of carrier fluid having entrained solid abrasive media therein are simultaneously discharged from the nozzle members so that the opposed streams directly violently impact and are deflected radially outwardly for impact against the surrounding boundary walls. The opposed nozzle members are preferably simultaneously synchronously moved lengthwise of the chamber to effect treating of the boundary walls.

Abstract: A lubricating agent for a burnishing compound comprising an aqueous solvent, an alkyl betaine that is soluble in the aqueous solvent, and a nonchelating acid that is soluble in the aqueous solvent. The alkyl betaine is of the formula: ##STR1## wherein R, R.sub.1, R.sub.2 are organic radicals that are the same or different. The nonchelating acid can be a monocarboxylic acid. A nonchelating tertiary amine can be formulated with the lubricating agent to resist the formatting corrosion.

Abstract: Apparatus for finishing parts or workpieces in the presence of liquid in a finishing chamber having outer upstanding wall and bottom members which are symmetrically arranged about a common axis and relatively rotatable about the axis, for imparting motion to the contents of the chamber for finishing of the parts or workpieces therein, and means for causing the relative motion, having an improved resilient seal between the bottom and the wall members in the form of a resiliently-restricted zone, comprising a partial bottom-forming lip or other partial bottom-forming element, and means for pumping fluid into said zone at a sufficient pressure so that the fluid enters the zone and then flows upwardly into the finishing chamber, is disclosed. Storage chambers below the bottom and adjacent the upstanding wall are employed for storage of fluid to be introduced into the finishing chamber.

Abstract: Apparatus for finishing parts or workpieces in the presence of liquid in a finishing chamber having outer upstanding wall and bottom members which are symmetrically arranged about a common axis and relatively rotatable about the axis, for imparting motion to the contents of the chamber for finishing of the parts or workpieces therein, and means for causing the relative motion, having an improved resilient seal between the bottom and the wall members in the form of a resiliently-restricted zone, comprising a partial bottom-forming lip or other partial bottom-forming element, and means for pumping fluid into said zone at a sufficient pressure so that the fluid enters the zone and thence flows upwardly into the finishing chamber, is disclosed. Storage chambers below the bottom and adjacent the upstanding wall are employed for storage of fluid to be introduced into the finishing chamber.

Abstract: A vibratory finishing machine for the surface finishing of workpieces comprising an essentially spiral trough, having a plurality of channels in side-by-side relationship, resiliently mounted for vibration and tilted with respect to the horizontal; such a spiral trough which is employed as a finishing chamber by attachment to a resiliently-mounted vibratory structure of a vibratory finishing machine; and a method and apparatus for vibratorily finishing a workpiece by subjecting it to a surface finishing medium in such a trough, having liquid finishing medium in only lower sections thereof and having solid finishing medium in an outer channel of said trough, are disclosed.

Abstract: A novel method for the surface-planing of the elongated parts, in which the parts are not submerged in the finishing media, and in which the direction of the finishing media orbit is in the direction of feed or of the longitudinal dimension of the part, is disclosed, as well as novel open-top finishing machines, comprising finishing chambers having internal flow diverters, and side walls lower than front and back walls, all especially adapted for carrying out the surface-planing method of the invention.

Abstract: A novel method of forming a finishing chamber by inserting a cylindrical tube into a corresponding opening in the bottom of a dished tank head having a bottom and an upwardly-extending outer wall, inserting a cone-shaped gusset or collar having an outwardly and downwardly-extending skirt and an opening in the top thereof, corresponding to the circumference of the cylindrical tube, over the tube and with its outer circumference in contact with the tank head, and welding the tube to the tank head and to the gusset and the gusset to the bottom of the tank head, thereby simply to provide the essentials of a finishing chamber, is disclosed. The outer wall of the finishing chamber may be extended by welding a sheetform annular ring to the top of the outer wall of the tank head, and the chamber may be lined with elastomer and fitted with a screen deck.

Abstract: A novel method for the surface-planing of elongated parts, in which the parts are not submerged in the finishing media, and in which the direction of the finishing media orbit is in the direction of feed or of the longitudinal dimension of the part, is disclosed, as well as novel open-top finishing machines, comprising finishing chambers having internal flow diverters, and side walls lower than front and back walls, all especially adapted for carrying out the surface-planing method of the invention.

Abstract: A novel method of forming a finishing chamber by inserting a cylindrical tube into a corresponding opening in the bottom of a dished tank head having a bottom and an upwardly-extending outer wall, inserting a cone-shaped gusset or collar having an outwardly and downwardly-extending skirt and an opening in the top thereof, corresponding to the circumference of the cylindrical tube, over the tube and with its outer circumference in contact with the tank head, and welding the tube to the tank head and to the gusset and the gusset to the bottom of the tank head, thereby simply to provide the essentials of a finishing chamber, is disclosed. The outer wall of the finishing chamber may be extended by welding a sheetform annular ring to the top of the outer wall of the tank head, and the chamber may be lined with elastomer and fitted with a screen deck.

Abstract: A method for the surface finishing of a part or workpiece with loose particulate finishing material or media comprising the steps of providing a first body of finishing media, providing a second body of finishing media, said first body and said second body being in side-by-side juxtaposition with respect to each other, independently imparting vibratory action to each of said first and second bodies of finishing media to impart relative motion to the particular segments thereof and to cause portions of said first and second bodies to impinge upon each other, and subjecting the part or workpiece to the action of said finishing media for the surface finishing of said part or workpiece while said finishing media is in motion, preferably by fixturing said part or workpiece and passing said part or workpiece through the finishing media, and preferably wherein orbital motion is imparted to each of the said bodies of finishing media, especially orbital motion which is other than unidirectional, particularly when the

Abstract: A method of providing a chamber having an interior elastomeric lining suitable for use as the finishing chamber of a finishing machine or the like comprising the step of providing the inner surface of said chamber with a layer of thermally-activatable release agent and adhering the elastomeric lining to said layer of thermally-activatable release agent, the temperature at which said thermally-activatable release agent is activatable being a temperature below that at which substantial deterioration of said elastomeric lining occurs, especially wherein said thermally-activatable release agent is applied to the inner surface of said chamber in activated state and wherein said thermally-activatable release agent is allowed to solidify before adhering said elastomeric lining thereto, particularly wherein said elastomeric lining is formed in place in contact with said solidified thermally-activatable release agent, and especially wherein said elastomeric lining comprises a polyurethane; a method of lining a chamber

Abstract: A finishing machine comprising a generally annular finishing chamber having a bottom and upstanding side walls, centrally located vibratory means comprising a substantially vertical shaft with major and minor eccentric weights at each end thereof, one of the eccentric weights at each end of the shaft being fixed, the other of the eccentric weights at each end of the shaft being moveable with respect to said shaft, means operatively associated with said moveable eccentric weights for effecting movement thereof within permissible limits, and limit means defining the permissible movement of the moveable eccentric weight at each end of the shaft, for respectively (a) increasing or decreasing the intensity of vibrations, or (b) reversing the direction of the force factor and hence the direction of flow of mass within the finishing chamber concurrently with an increase or decrease in the intensity of vibrations, depending upon whether the moveable eccentric weights are (a) two minor eccentric weights or two major e

Abstract: A self-separating finishing machine for finishing of parts with finishing media, having a rotatable housing comprising a finishing chamber and a storage chamber and a foraminous member therebetween, wherein the housing is rotatable from a first and finishing position to a second and media-separating position and to a third and parts-ejection position, and wherein vibratory means, preferably variable-intensity vibratory means, is operatively associated with said foraminous member for vibration of said foraminous member, especially at different intensities, when said housing is in different positions of rotation, such machine embodying a particularly advantageous type of variable-intensity vibratory motor especially adapted for use in such machine, and a method of finishing involving the impartation of various intensities of vibration to the foraminous member at different stages of the process, e.g., when the housing is in different positions of rotation, are disclosed.

Abstract: A finishing machine for finishing the surface of unfinished parts with finishing media, comprising a finishing chamber, preferably but not necessarily resiliently mounted, for receiving unfinished parts and media and for finishing of parts therein, in which the chamber comprises a bottom and includes upstanding side walls and in which the chamber bottom comprises a plurality of annular spinner members, constituting a lower portion of the chamber, and complementary annular openings for the spinner members, the spinner members being adapted to rotate about an axis which is either substantially vertical or substantially normal with respect to the section of the chamber bottom in which located, a rotational motion-producing assembly operatively associated with each of the spinner members comprising rotatable support means for each of the spinner members, each of which support means is adapted to rotate about an axis which is substantially the same as that of its complementary spinner member, and associated drive

Abstract: A method of producing finishing chips comprising the steps of providing a castable mixture of particulate abrasive grains and a solidifiable matrix, depositing the mixture into cavities of a generally-cylindrical, flexible mold having a plurality of cavities in the interior surface thereof conforming to the desired configuration of finishing chips to be produced, rotating said cylindrical mold during solidification of said mixture and the production of solid finishing chips within said cavities, and ejecting said solidified finishing chips from said mold by bringing said mold to an inside-out position, whereby said solidified finishing chips are ejected from said cavities, is disclosed.

Abstract: A self-separating finishing machine for finishing of parts with finishing media, having a rotatable housing comprising a finishing chamber and a storage chamber and a foraminous member therebetween, wherein the housing is rotatable from a first and finishing position to a second and media-separating position and to a third and parts-ejection position, and wherein vibratory means, preferably variable-intensity vibratory means, is operatively associated with said foraminous member for vibration of said foraminous member, especially at different intensities, when said housing is in different positions of rotation, such machine embodying a particularly advantageous type of variable-intensity vibratory motor especially adapted for use in such machine, and a method of finishing involving the impartation of various intensities of vibration to the foraminous member at different stages of the process, e.g., when the housing is in different positions of rotation, are disclosed.

Abstract: A metal finishing composition particularly useful for burnishing of metallic components while subjecting said metallic components to the action of a solid finishing media, said composition comprising an acidic burnishing media and, as a rust and discoloration inhibitor component thereof, a mixture of the compounds 6-[methyl(phenylsulfonyl)amino] hexanoic acid and 2,2', 2"-nitrilotris(ethanol), is disclosed.