Abstract: A cylinder grinding machine with devices for tracing and dimensional and surface checking has a front bench provided with rests for supporting the workpiece and a head and a counterhead for rotation and longitudinal restraint of the workpiece. A rear bench supports a carriage longitudinally movable on it parallel to the axis of the workpiece. On the carriage there is a wheelhead movable perpendicularly to the axis of the piece bearing the grinding tool. A third bench is rigid with the front bench and is located opposite the second bench. On the third bench a measuring carriage supporting more instruments tracing the dimensions and surface of the workpiece, operating both in contact and without contact with the workpiece, is movable. The carriage is provided with motorized devices which are autonomous and independent of the movements of the carriage supporting the wheelhead, it being possible for the measurement by such instruments to be carried out at the same time as machining and independently of it.

Abstract: A wheel dresser for dressing and truing a driven grinding wheel, having a housing, a shaft rotatably mounted in the housing, a dressing wheel substantially nonrotatably affixed to the shaft, and dressing control knob apparatus for enabling operator supplied digital manipulation so as to initiate rotation of the dressing wheel and the shaft prior to contact of the dressing wheel with the driven grinding wheel and for thereafter enabling operator supplied digital manipulation so as to apply a braking action against rotation of the dressing wheel by the driven grinding wheel.

Abstract: The independent measuring apparatus for grinding machines for cylinders, rollers and the like, according to the invention, consists of a column supported by an independently movable carriage on a fixed bench of the machine, on which a gage is supported, having two mobile arms surrounding the measuring cylinder, in contact with two diametrically opposed surface areas of the same, provided with devices for tracing and transmitting the measurement, provided with motorized means of controlling the relative opening and closing movement of the arms, which column also supports a telescopic arm which can be moved toward the surface of the cylinder to be measured, having at the end facing the cylinder means of tracing at a distance from structural characteristics and defects of the cylinder itself, the fixed bench being connected laterally to the cylinder to be surveyed and the gage being provided with a slope toward the cylinder itself.

Abstract: A dressing tool for grinding wheels includes a base body and a diamond coat which is formed of diamond grains embedded in a metallic bond. The diamond grains are artificially roughened so that their surface area is significantly enlarged and are arranged in the metallic bond with such density that the majority of grains are in direct contact with adjacent grains.

Abstract: An apparatus for deflashing of elastomeric elements comprising: (a) a tumbling barrel having a closable opening for introducing and withdrawal of elastomeric elements and deflashing media to the interior of the barrel; (b) a refrigeration chamber sized for receiving the barrel therein, having an access opening for providing access to a barrel located therein, having mechanism for mounting the barrel therein, and having apparatus for lowering the temperature of the interior of the chamber; and (c) mechanism for imparting motion to the barrel mounted within the chamber to achieve impacting movement to the barrel contents. The apparatus avoids the high costs and dangers of the complicated prior art cryogenic devices and is excellently suited for smaller molders.

Abstract: A grinding wheel position detecting means for a surface grinding machine, in which a super-grain grinding wheel is composed of a base metal fastened to a longitudinal end portion of a rotating shaft and a super-grain layer provided on a longitudinal end face of said base metal, and a longitudinal end face of the super-grain layer is utilized as a grinding surface.

Abstract: A wire sawing method for cutting buildings, dams, bridge piers, foundations and other reinforced concrete structures is exhibited.This method is characterized by laying a cable on a reinforced concrete structure and using a moving type cable driving machine which pulls the cable for cutting and drives it circularly while the machine itself moves, together in series with a fixed type cable driving machine which drives the tension side part of the cable for cutting. The endless cable for cutting is circularly driven while its running speed and tension are adjusted by the cable driving system.

Abstract: Automated grinding is performed using a tracking means having a sufficient field of view to locate edges to be processed and using a high resolution profiler in order to provide grinding information for calculation of the amount of material which should be removed from the workpiece. Those sections of the workpiece not requiring additional grinding may be traversed at a high speed in order to improve productivity. A process control computer receives grinding information from the tracking means and high resolution profiler and uses it to control a manipulator to adjust the travel speed of the grinder, force with which a grinder is applied, position of the grinder, and/or speed of rotation of the grinder in order to remove the correct amount of material from a workpiece. The technique is especially advantageous in removing excess material, burrs, nicks, chips and other minor irregularities in workpieces. A second profiler may be used to check that the grinder has properly ground portions of the workpiece.

Abstract: A numerically controlled grinding machine provided with an angular type grinding wheel and a numerical controller for controlling the feed of grinding wheel based upon a control signal from a measuring head which measures the diameter of a cylindrical side of a workpiece. The grinding wheel is moved along an inclined path to grind the cylindrical side and a radially inner portion of the shoulder of the workpiece, simultaneously. In response to the control signal from the measuring head, the feeding of the grinding wheel is stopped. Then, the numerical controller detects the difference between a target position and a actual position of the grinding wheel along an axis of a work spindle. Further, the numerical controller compensates another target position to grind the radially outer portion of the shoulder for the difference. Thereafter, the grinding wheel is moved to the compensated target position so as to grind the radially outer portion of the shoulder.

Abstract: Apparatus for cutting substantially flat ceramics pieces, having a frame for supporting the piece to be cut, over which a head carrying a cutting line-scoring tool slides. A freely-oscillating fork is arranged rearward of the position of engagement of the scoring tool, with legs on the fork resting on the piece to be cut on both sides of the scoring or marking line. A cranked lever is articulated on the frame and has a forward end projecting through an opening in the frame and a forward arm actuated by the tool carrier head at the instant the piece is broken or severed, to cause the rearward end to protrude and support the piece for breaking or severing.

Abstract: An improved structure for supporting and positioning a planar glass workpiece within a glass grinding apparatus is disclosed. Three radially extending carriage assemblies are provided between a lower pan and an upper supporting platform. Each of the carriage assemblies extends radially outwardly from a central drive shaft connected to the supporting platform to the periphery of the lower pan. The radial inner ends of the carriage assemblies are rotatably supported about the drive shaft, while the radial outer ends are carried on respective motor assemblies connected to a gear formed on a lower pan. Energization of the motor assemblies causes the associated carriage assemblies to pivot relative to the lower pan. Each of the carriage assemblies also carries a locator cylinder assembly thereon. The locator cylinder assemblies are movable radially inwardly and outwardly throughout the length of the corresponding carriage assemblies by means of the associated motor assemblies.

Abstract: A method of "stone washing" jeans is disclosed. The process involves tumbling jeans without water and in the presence of resin-bonded abrasive members in a first elongated tumbler drum having a generally horizontal axis, discharging the jeans and abrasive members from the first tumbler drum, separating the abrasive members utilizing an oscillating conveyor, feeding the jeans to a second elongated tumbler drum having a perforated wall and a generally horizontal axis of rotation to remove any remaining abrasive members from the jeans and thereafter removing the treated jeans from the second tumbler drum while recycling the abrasive members to the first tumbler.

Abstract: A guide pulley base for wire saw having a pair of main pulleys on the same plane, a pair of guidance pulleys in parallel to each other in such a way that each outer periphery of the guidance pulley is in contact with each parallel tangent line contacting with each outer periphery of each main pulley from the opposing side of the main pulleys, and further at need, a pair of second guidance pulleys, a pair of second main pulleys and an auxiliary pulley.The guide pulley base for wire saw is arranged between a wire drive unit and an object to be cut for guiding a cutting wire and smoothly turning the wire travel direction when an object to be cut such as ferroconcrete structure in a building, a bridge, a subway, etc. is cut off partially.

Abstract: A grinding tool is provided that is especially designed for the accurate and efficient grinding of overhead camshaft motor valve clearance discs. The tool hereof includes a tool outer casing adapted for retainment in the clamping fixture of a grinding machine, a disc retaining head rotatably carried by the housing, and an axially aligned release rod shiftably carried within the retaining head and housing. In operation, the disc is retained by a lubricated force fit within a retaining head counterbore, and the grinding tool positions the disc in grinding contact with the generally planar grinding surface of a rotatable grinding wheel. The rotational mounting of the retaining head within the tool housing allows for rotation of the disc relative to the grinding wheel surface, thereby enhancing the even grinding of the disc.

Abstract: An abrading element for mass finishing of workpieces such as vibratory finishing comprises an elongated metallic rod of generally circular or other curvilinear cross section with serrations extending over substantially its entire periphery along its elongated axis. The serrations provide cutting edges along their outer surfaces and recesses therebetween. The metal of the rod is hardened at least in the portion adjacent the surface to provide hardened cutting edges and a wear resistant surface. The abrading elements are conveniently formed by severing rod or wire stock in the desired length and rolling or otherwise forming the desired serrations therein, after which the abrading elements may be hardened.

Abstract: In a wire saw drive apparatus having a carriage, a wire drive pulley mounted on the carriage, pulley drive means for rotating the wire drive pulley to drive an endless cutting wire, a pair of adjust pulleys for guiding a tensile side and a loose side of the cutting wire, and carriage drive means for moving the carriage and maintaining the cutting wire under a desired tension, the improvement comprises elastic means mounted between an adjust pulley supporting body for guiding at least the tensile side of the cutting wire and the carriage, for receiving a force applied from the cutting wire to the adjust pulley, and a guide pulley mounted on the carriage near the adjust pulley for guiding the tensile side of the cutting wire, for guiding the cutting wire into S shape fashion in cooperation with the adjust pulley.

Abstract: An exhaust and reclaim system for a blasting enclosure having exhausting means which includes two separate exhaust paths for the exhausted blasting media. One path primarily for the heavier media is through a perforated floor into means located under the floor from whence the exhausted blasting media is separated into reusable and non-usable media. The second path primarily for the lighter media that is suspended in the compartment is through filter means located at one end of the compartment. The particles of such media are intercepted by the filter means and then dispensed into the first path of the heavier particles for subsequent separation into usable and non-usable media.

Abstract: An adjustable lock for rotating drives, more particularly pipework fittings such as screwdown valves, gate valves or the like wherein the drive is required to make a number of revolutions. In the adjustable lock, a planetary transmission is provided as a reducing transmission in order to reduce drive rotation to at most one revolution and, therefore, to define a definite locking position.

Abstract: A latching device for overhead-type doors mounted for movement between a closed position and a raised position with respect to an opening defined by a frame. The latching mechanism includes a pivotable arm having a pivot end and an engagement end. The pivot end of the pivotable arm is mounted above the opening for pivotable movement about a substantially horizontal axis between a first position and a second raised position. The engagement end of the arm is adapted to engage a first latch portion associated with the door when the door is in a closed position and the arm is in the first position, and also adapted to engage a second latch portion associated with the door when the door is in the raised position and the arm is in an intermediate position between the first and second positions.

Abstract: An improved control linkage assembly is disclosed which is particularly suited for embodiment in association with a material handling implement having a reversibly operable mechanism. The assembly includes an operating lever movable from a neutral position in one of two operating directions eminating from a common neutral position and extending in generally the same direction away from the neutral position. The operating lever is selectively engageable with one of two engaging levers for selectively moving a control element of a control member, such as a hydraulic valve, in one of two opposite directions. This type of movement is effected by a series of mechanical linkages which rotate an intermediate shaft clockwise and counterclockwise facilitating movement of the control element in first and second directions.