Abstract: An abrasive honing stick is bonded within a channel-shaped shell which is made of sheet metal and which is secured detachably to a stone holder by a pair of retaining studs. Each stud extends through a hole in the shell, is telescoped into an alined hole in the holder and is clamped by a set screw which, when tightened, cams against the stud to draw the shell inwardly against the holder. The retention studs extend radially from the shell to reduce the circumferential dimension of the overall stone assembly and thereby enable a comparatively large number of assemblies to be placed in a hone body of a given diameter.
October 2, 1989
Date of Patent:
September 24, 1991
Barnes Drill Co.
Mark R. Estabrook, Charles R. Van Sickle
Abstract: A booth in which components are cleaned by high pressure water ejected from a nozzle assembly associated with a robot. The robot is adapted to move the nozzle assembly along multiple axes so as to enable the nozzle assembly to reach various areas of the components to be cleaned. The nozzle assembly and part of the robot are located in the booth but substantial portions of the robot are located outside of the booth in order to avoid the need for waterproofing those portions. To enable the robot to operate while located partially within and partially outside of the booth, one wall of the booth is formed by groups of slidable panels which expand and contract to accommodate the robot as the robot is moved. In one embodiment, the panels form the ceiling of the booth and, in a second embodiment, the panels define one upright side wall of the booth.
Abstract: A separator with a magnetic drum which rotates through a well-defined liquid flow path to separate magnetic particles from liquid delivered to the flow path by way of a trough. A weir extends between the trough and the drum to define a gap at the entry end of the flow path. The weir is hinged to swing downwardly and upwardly to automatically increase and decrease the width of the gap when the incoming flow rate increases and decreases, respectively, the weir thus acting to maintain the liquid level in the trough substantially constant at various incoming flow rates. The trough is shaped to spread the incoming liquid across the length of the drum in a streamlined manner. The housing of the separator is of a fabricated construction enabling easy removal and replacement of an arcuate apron which coacts with the drum and the housing to define the flow path.
Abstract: A drum with a wedge-wire filter screen is submerged in a dirty coolant tank and filters machine tool coolant when vacuum is applied to the inside of the drum by means of a suction line at one end of the drum. The vacuum draws the coolant through the screen and into the inside of the drum for discharge through the suction line. During the filtering process, a filter cake builds up on the outside of the screen and must be periodically removed therefrom. To remove the filter cake while enabling the use of a simplified sealing structure between the drum and the suction line, the drum is supported in a rotationally stationary position, a scraper is supported to rotate around the drum, and the scraper is intermittently indexed to shave filter cake from the screen.
Abstract: A reversible d.c. torque motor advances and retracts a cone mechanism for radially expanding and contracting the stones of a tool for honing a bore in a workpiece. The motor is adapted to advance the cone mechanism at three different speeds so as to effect expansion of the tool first at a rapid traverse rate, then at a slower coarse feed rate and then at a still slower fine feed rate. Pulses representative of changes in position of the cone mechanism are routed to and are counted by a reversible counter which causes the cone mechanism to retract to different starting positions as the stones of the tool wear and reduce the effective diameter of the tool.
Abstract: An indexable filter web is advanced downwardly into and then upwardly out of a pool of dirty coolant by a perforated flexible belt. Rotatable wheels shape the belt and the web into a circular configuration with the bottom of the web defining the bottom of a clean coolant pool located inside of the web and within the dirty coolant pool. The pressure of the coolant in the dirty pool forces the dirty coolant through the web, the coolant being filtered by the web and flowing into the clean pool for subsequent discharge into a clean tank. The sides of the clean pool are defined in part by stationary ring-like elements which coact with the side edges of the belt to form grooves for receiving the side margins of the web. The pressure of the dirty coolant forces the side margins of the web into the grooves and causes the side margins of the web to seal themselves to the ring-like elements so that coolant is prevented from flowing into the clean pool without passing through and being filtered by the web.
Abstract: The underflow of a cyclonic separator is discharged onto the drum of a magnetic separator and is confined to flow around the drum along a narrow channel so as to filter the underflow through swarf collected on the drum within the channel while preventing the underflow from washing across and disturbing the swarf collected outside of the channel.
Abstract: The liquid which is delivered to cyclonic separators for final cleaning is precleaned twice, first in a drag tank and then by a magnetic separator. The dirty underflow from the cyclonic separators is subjected to two stages of aftercleaning, first in a second drag tank and then by a fabric filter.
Abstract: An indexable filter web is advanced beneath a vacuum box by a perforated flexible belt and is held against the belt by two endless bands adapted to travel along opposite sides of the vacuum box when the web is advanced.
Abstract: A slotted pipe is rotatably supported in a drag tank and communicates with the suction line of a pump. Magnetic discs are rotatable with the pipe and serve to attract and catch magnetic particles in liquid flowing to the pipe so as to prevent such particles from entering the pump. A scraper is positioned adjacent the rotatable discs and pipe to brush the caught particles therefrom and direct the particles to the bottom of the tank.
Abstract: Abrading tools having shaped solid bodies composed of wearable matrix material and embedded fibers of harder abrasive material with ends exposed at the working surfaces of the tools and constituting the abrasive or cutting elements of the tools. In one case, a honing stone has closely spaced cylindrical fibers arranged in rows of fibers substantially perpendicular to the working face, which has a slight transverse curvature, and alternate arrangements inclined relative to the face so that the ends are oval. In another case, an abrading wheel has radial fibers and another has longitudinal fibers for end-working applications. Suitable fiber materials for machining metals may be boron and boron compounds.