Abstract: A method and apparatus for polishing the ends of fiber optic connectors by gripping an end to be polished and yieldingly urging it against a moving abrasive member in a manner so as to gradually build up the force between the fiber optic end and the abrasive member from an initial low force to a maximum force.

Abstract: The method of finishing the surface of a disc, such as a disc whereon information is magnetically recorded for use in computers and the like. It involves urging against one side of a rotating disc, a polishing pad having a polishing compound or medium thereon, and simultaneously urging a non-polishing pad against the opposite side of such disc in alignment with the polishing pad. To simultaneously polish the opposite side surfaces of the disc, a second pair of pads (one polishing and one non-polishing) is equiangularly spaced on the disc in relation to the first pair of pads, but the pads of the second pair of pads are reversed so as to cause the finishing process to occur on the disc side not being polished by the first pair of pads. Any desired even numbered pairs of pads may be employed.The polishing and non-polishing pads are caused to rotate relative to and against the respective side of the disc as the disc itself is caused to rotate about its axis.

Abstract: In the internal grinding machine intended to perform the concentric bore processing, rotatably supporting the workpiece of which bore is processed in the previous processing step, a workpiece centerless support device for use in the internal grinding machine, comprises of an internal shoe which penetrates the internal bore of the workpiece and contacts with two points internally thereof so as to rotatably support the workpiece; a couple of drive rolls arranged on both side portion of the internal shoe; a couple of spring means which energizes each drive rolls toward the circumference of the workpiece and of which spring pressure is determined in alternatively differential rate so that the contacting location against the internal shoe of the workpiece is always preserved in the side of two contact points; a pusher plate which is inserted from end portion of the workpiece to surround the circumference of the workpiece; an outlet of coolant which is provided on the pusher plate in a manner of being opposed to th

Abstract: An axe head, for splitting wood is disclosed. The outside surface of the axe head has a convex shape, while the upper portion of the inside surface has a concave shape. In an alternative embodiment of the invention, the entire inside surface of the axe head, has a concave shape. The combination of the convex and concave outer and inside surfaces of the axe head enhance the axe's ability to split wood.

Abstract: A method for surface treating a continuous flow of workpieces includes the steps of fluidizing a stationary bed of surface treating media, aggitating the fluidized bed of surface treating to create a scrubbing action to the surface treating media, and moving the workpieces to be treated through the stationary, fluidized aggitated media bed subjecting the workpieces to the scrubbing action of the media. Further, an apparatus for surface treating workpieces which includes a trough for containing a bed or pool of surface treating media, a force vibration generating device for imparting a reciprocating force, having at least a vertical force vector, to the trough and, therefore, to the surface treating media contained in the trough, and a means of conveying the workpieces to be treated continuously through the trough and, therefore, through the media.

Abstract: A hand-held planing tool has a housing with a chamber adapted to receive a rotary driven planer head. The chamber is sized to receive either a small planer head and blade which makes a shallow flat planar cut in a workpiece, or a larger planer head and blade which makes a profiling cut (e.g., an irregular cut) in a workpiece. The housing carries support members which extend downwardly to different depths to contact the portions of the profiling cut which are of corresponding depths, and thereby adapt the tool to travel along the profile.

Abstract: A method is described of forming a circular convergent lens in a plate of transparent mineral material, which involves grinding the lens with a grinding member having a lesser diameter than the lens and imparting an oscillatory motion to the plate relatively to the grinding wheel.This method also enables self-dressing of the grinding member.

Abstract: An adjustable screw driver having an improved structure, and more particularly to an adjustable screw driver with a detachable shank having two different tips, a symmetrically-grooved handle on which a flute is set for disposing a wire spring which is attached to the handle by a screw at one end and associated with a control plate by its other end through an aperture of the plate having a square engaging hole at the center. A piece of restraining board having a cut on its periphery is fixed to the bottom of the handle by screws.

Abstract: A plurality of devices are disclosed for supporting threaded screws in a plane normal to a surface into which the screws are threaded. Each embodiment includes means for supporting the shank of the screw at points intermediate the ends thereof rather than only at the head thereof. The means is resiliently expandable to permit passage of the head of the screw past the supporting means for disengagement of the device after the screw has obtained substantial threaded purchase with an engaged structure.

Abstract: The invention is intended for use with threaded fasteners, screws, bolts and similar devices, in their almost limitless applications to assembling objects and structures. These fasteners exist in many types, each requiring a special tool bit.On many occasions screws or other fasteners must be installed or removed in locations difficult of access and of which clear view may not be obtained, also where use of two hands is not possible. This invention is particularly intended for these situations.The invention comprises basically a combination of a barrel (11 or 811) and collar (20 or 201), preferably made of stiff but flexible plastic, which fit over and enclose a tool for threaded fasteners, either with a fixed bit or one which can accept insertable bits. The barrel (11) provides at its working or tip end a set of flexible elements (31) which act to grip screw heads and hold them registered with the tool.

Abstract: A tool for removing nuts having slots around its circumference and nuts having varying circumferences. The tool is provided with downwardly and integrally extending short ears. The ears extend downwardly at various edges of the tool having greater distances from each other. The tool is also provided with an outwardly integrally formed Allen wrench and the tool is also provided with an elongated Allen wrench extending outwardly of the tool.

Abstract: A collapsible saw comprising an elongated hollow frame member, a handle pivotally connected to the frame member by an interconnecting member to form an angle with a saw blade connected between the free end portions of the angle, and a lever pivotally attached to the free end portion of the handle including a device for engagement with the saw blade and arranged to hold the saw blade by means of toggle action. When the saw is in the position for use, the handle and the interconnecting member abut the frame member at a distance from the point of attachment for the interconnecting member. The saw thus combines a rigid structure with rapid engagement of the saw blade.

Abstract: A carpet layers knife made for easy replacement of a replaceable blade which includes a blade holding portion and a handle portion; the blade holding portion provided with an internal shoulder to guide the blade into and out of the knife without dulling the blade, and a connecting element holding the elements of the knife together, the connecting element being positioned to be out of the path of the blade as it is inserted and retracted but capable of holding the blade firmly in its tightened position while providing a passageway for insertion and removal of the blade in its loosened position.

Abstract: A surface grinding machine has a motor-driven grinding disc supported in a carrier movably supported above the base and a tool holding fixture on the base which is rotatable about a laterally offset axis. A control assembly includes a contact arm which is movable into an operative position to guide the tool into the initial grinding position, and includes means for moving the grinding disc downwardly against the tool surface in a controlled fashion upon movement of the contact arm into an inoperative position. The tool holding fixture is rotatable about its axis as the grinding disc rotates to eliminate substantially circular grooves and scratches in the tool being ground.

Abstract: Apparatus for grinding twist drills comprises a drive shaft and a grinding wheel, which is coupled to said shaft and is mounted thereon to be axially movable relative to the shaft and is spring-loaded toward a drill-guiding structure facing the grinding surface of the grinding wheel. The drill-guiding structure comprises guiding passages for guiding drills differing in diameter against the grinding surface and in association with each guiding passage comprises at least one guide lug for extending into a flute of the twist drill extending through the associated guiding passage, and a drill stop for limiting the advance of the twist drill in the guiding passage against the elastically yielding grinding wheel. To said drill-guiding structure at least one abutment is connected which is engageable by the grinding wheel and has a higher hardness than the grinding wheel.

Abstract: The apparatus for grinding twist drills comprises a shaft and a grinding wheel which has a grinding surface and is rigidly secured to the shaft. The apparatus comprises also a drill-guiding body, which faces the grinding surface and is axially spaced from it and axially immovable relative to the grinding surface. The drill-guiding body is formed with a plurality of guiding passages for guiding twist drills differing in diameter toward the grinding surface. At least one guide lug is aligned with each guiding passage of the drill-guiding body and adapted to extend into a flute of a twist drill extending through the associated guiding passage. All guide lugs are mounted on a guide lug carrier, which is mounted to be axially movable between the drill-guiding body and the grinding surface and which is biased toward the grinding surface by a spring.

Abstract: A plurality of planer cutters are mounted on a center piece of a planer tool. A clamping flap and mounting bolts connect the cutter to the center piece. The cutter has a groove adapted to receive the collars of adjusting screws to radially adjust the cutter. The flap is connected to the center piece at two circumferentially spaced locations so that a long flap can be employed which is shaped complementarily to the shape of the cutter profile.

Abstract: A sand blasting apparatus utilizes an aspiration system (1) to draw particulate media such as sand and a carrier gas such as air into a mixing chamber of a discharge nozzle through an aspiration probe and through a media supply conduit from a media reservoir, (2) to draw a liquid such as water into the mixing chamber through a liquid supply conduit from a liquid reservoir, and (3) to combine the liquid, the media and the carrier gas with a propulsion fluid such as compressed air so that what discharges from the nozzle is a controlled, uniformly combined flow of media, carrier gas, liquid and propulsion fluid. The aspiration effect needed to draw the media, the carrier gas and the liquid into the discharge nozzle is achieved by passing a flow of propulsion fluid along a flow path through the mixing chamber. The combined flow which discharges from the nozzle provides an enhanced blasting action.

Abstract: An auxiliary device for re-grinding spiral drills which includes a clamping channel for accommodating the spiral drill. The auxiliary device includes a polyhedronal shaped body which is adapted to be clamped onto the spiral drill. An outlet portion of the body is provided with at least one sight-edge running in parallel to a main cutting edge, with the sight-edge being several times longer than the main cutting edge. A bottom side of the body is formed as a supporting surface for supporting the same on a grinding table, with the supporting surface being inclined at a front clearance angle with respect to a longitudinal center axis of the drill. The body may be provided with two sight-edges at the outlet portion, with the sight-edges being inclined with respect to each other at an angle corresponding to a center angle of the drill. Additionally, the bottom as well as top side of the body may be fashioned as supporting surfaces set at the clearance angle with respect to the drill axis.

Abstract: A torque transmitting device characterized by a shaft (14) having a horizontal axis (17), a first end, a second end, said first end being arranged to be inserted foremost into a bore in a workpiece, wherein the shaft (14) is formed with at least one groove (16) extending longitudinally of the shaft (14), a workpiece engaging jaw (19) is mounted in each groove (16), slotted annular collar (13) is provided for retaining each jaw (19) in its respective groove (16). Each groove (16) may be angled with respect to the longitudinal axis (17) of the shaft (14) so that each jaw is non-aligned with the longitudinal axis (17) of the shaft (14).