Abstract: A positioning fixture which allows two or more parts to be positioned in proper spatial relationship to one another and then allows the parts which are clamped together to be repositioned while maintaining the spatial relationship between the parts. The positioning fixture has a flat working surface which is compatible with a variety of standard and custom clamping mechanisms for holding and positioning the parts to be welded. The working surface with the parts clamped to it is tiltable to a wide range of working positions. The tilting feature is provided by mounting the working surface on a locking ball joint which is operated by a foot pedal through a mechanical or pneumatic mechanism. The locking ball joint also provides electrical isolation between the work surface and the base of the positioning fixture which is important when using electrical welding methods.

Abstract: A tube material opening apparatus includes two pairs of rotatable wheels which are positioned at upstream and downstream locations within tube material. The peripheral edge of each rotatable wheel is rounded or tapered and contacts the inner surface of the tube material as the material travels in a longitudinal direction. The wheels are mounted to provide appropriate lateral tension to the tube material. The apparatus may include T-shaped bearing members or positioning rollers for maintaining the rotatable wheel positioning within the tube material.

Abstract: A machine for scraping tires and the like comprising means of handling (6, 106) and actuation (4, 104) of a tire (7) made integral with a frame (1) according to a horizontal axis, constituting the axis of rotation of tire (7) and of a work tool (11), and a device (8) for lifting the tire, one (6) of such means of handling being capable of being operated in rotation but fixed in translation to constitute a fixed zero setting for positioning vertical axis of symmetry (z-z) of tire (7), work tool (11) being capable of moving in a horizontal direction parallel to the axis of rotation of the tire so as to achieve the positioning of their vertical axis of symmetry (y-y) in superposition with axis of symmetry (x-x) of the said tire in relation to width dimension (x) of tire (7) and to fixed reference (6).

Abstract: Device for trouble-free conveyance of products in a folding apparatus both through a nip between two product-guiding cylinders and through a rearwardly extending wedge region bounded laterally by circumferential surfaces of both of the cylinders and at the top by a guiding device for the product to be conveyed includes a compressible covering on a respective one of the cylinders taking over a product, the compressible covering being formed with a plurality of chambers closable off by a section of the product.

Abstract: A method and apparatus for removing insulation from the ends of electrical wires. The wire processing machine has a pair of turning mechanisms each driving a set of feed wheels, one set on either side of a pair of reciprocating V-notch shaped cutting blades. The feed wheels grip a wire for feeding it into and out of the cutting zone of the blades. Each set of feed wheels and its turning mechanism are mounted on a reciprocating table. A rotation mechanism causes the feed wheels to reciprocate in opposed directions transverse to the wire axis for the purpose of rotating the wire about its axis. The cutting blades close upon a wire positioned for stripping, cutting less than the full circumference of the insulation. With the blades closed and stationary, the rotation mechanism is activated to rotate the wire, thereby completing a full encircling cut of the insulation. The feed wheels advance the wire with the blades closed to remove the insulation slug.

Abstract: An apparatus is described for machining a conical ring, particularly a friction ring, which has inside and outside conical machinable surfaces having parallel radially aligned generatrices, which apparatus comprises two coaxial machining tools which consist of an outer tool having an inside conical machining surface for machining the outside machinable surface of said ring and an inner tool having an outside conical machining surface for machining said inside machinable surface of said ring, which machining tools are mounted to be rotatable about a common axis relative to said ring and said ring is adapted to be held between said tools so as to be centered on said axis.

Abstract: The invention relates to a polishing stack with at least one fixed and one moveable polishing roll for polishing a plastic sheet leaving a wide extrusion die. A device is provided that preloads the frames and the bearings and acts on a roll gap adjusting device which includes a pinion gear arrangement and drive for finely adjusting the roll gap between the fixed and moveable rolls. The polishing stack in preferred form includes a center fixed roll and top and bottom adjustable rolls.

Abstract: An adhesive blocking system, for generating and for fining and polishing eyeglass lenses, utilizes a collar which slides over and engages a lens block, which lens block is secured to a lens blank by a relatively thick adhesive pad, to uniformly transfer pressure from the cylinder machine to the lens blank without deforming the adhesive pad, which deformation adversely affects the optics. In this manner, a lens blank is blocked only once for both generating and fining and polishing. In addition, the environmental risks and heating effects of current solder blocking systems are avoided.

Abstract: The blade sharpening device is an adjustable multi-angle edge sharpening unit comprised of a base connected to a rotatable sharpening stone table and a vertically adjustable blade support table. A hand movable sharpening stone is positioned on the sharpening stone table and the blade to be sharpened positioned on the blade support table, with the blade in grinding contact with the sharpening stone. An angle selection chart on the base allows vertical movement of the blade support table in conjunction with rotational adjustment of the sharpening stone table to accurately select a specific angle at which the blade edge is ground. A scissors adapter unit may be attached to the blade support table which permits the sharpening of scissors blades. The scissors blade is pressed against the scissors adapter, the blade being in grinding contact with the sharpening stone in much the same manner as knife blades are sharpened by the device.

Abstract: A ratchet transfer device is provided for a reversible ratchet handle of a socket wrench set, the handle having a drive end with a ratchet reverse lever and a square peg. The device consists of an elongated generally flat narrow casing. A structure at a first end of the casing, is for rotatively coupling the square peg of the reversible ratchet handle. A component at a second end of the casing is for rotatively engaging a hard to get at hidden hex nut/hex bolt head in a work piece. An element within the casing is for transmitting down its length the action of the square peg of the reversible ratchet handle in the rotatively coupling structure to the rotatively engaging component to turn the hex nut/hex bolt head in the work piece.

Abstract: A machine for grinding opthalmic glasses including a carriage, a clamping shaft carried by the carriage and composed of two shaft parts for clamping therebetween an opthalmic glass blank, and a clamp cooperative with at least one of the shaft parts for exerting an axial force thereon. The clamp includes a motor-speed reducer unit having a motor, transmission elements for transmitting the driving force of the motor to at least one of the shaft parts, a housing enclosing the motor and the transmission elements and mounted relative to the carriage to pivot about a pivot axis, a reaction spring connecting the housing to the carriage, and a control unit associated with the motor and with the spring for varying the driving force of the motor as a function of the variation in the length of the spring.

Abstract: A cutting insert has a polygonal plate-like insert body defined by a front face, a back face, and a plurality of side faces lying between the front and back faces. A nose portion is defined by one of the corners of the front face. At least one cutting edge extends immediately from the nose portion. The cutting edge is defined by one of a pair of intersections of the front face with an adjacent pair of side faces sandwiching the nose portion therebetween. The front face includes an inclined surface sloping toward the back face in a direction away from the nose portion, causing each of the pair of intersections to incline toward the back face in a direction away from the nose portion. A breaker is formed on the inclined surface along the intersection of the inclined surface with a side face. The breaker has an inner surface for defining a rake surface portion more positively inclined to the corresponding cutting edge than that defined by the other area of the front face.

Abstract: A quarter fold folding device is described, having a quarter fold blade suspended by two opposite ends from two pivots, which are free to rotate with respect to the blade and are securely fastened to two connecting rods at one of their ends. The connecting rods are, at their opposite ends, rotationally driven in opposite directions, respectively, by means of two horizontal shafts rotating about their longitudinal axis. The rotating shafts are simultaneously rotationally driven in opposite directions respectively about two horizontal and parallel central axes, so that when the two rotating shafts perform a complete revolution about the parallel central axes, the two opposite ends of the folding blade driven by the connecting rods describe two parallel vertical segments of a straight line between a bottom position and a top position of the quarter fold blade. The quarter fold blade in the bottom position engages a signature between two folding cylinders, so as to form a longitudinal fold in the signature.

Abstract: A sharpener which has a main body portion to hold and support a sharpening stone 1. The main body is connected at one of its ends to a front guide plate and on the opposite end to a back guide plate. These two plates, in addition to guiding the direction of a knife blade during sharpening, also act to hold the stone in position. The back guide plate also acts as a finger guard and as a handle means for the sharpener.

Abstract: Methods of manufacturing bags preferably from a single sheet of bag forming material and bags produced thereby having reinforced handle sections integral with the wide sides of the bag.

Abstract: A curved snap fastener opener has a wedged shape with a recess at one end. As the wedge end of the opener is slid between the snap fastener base and the snap fastener cap, the curved shape of the opener provides an upward pressure on the cap of the snap fastener which assists in separating the cap from the base of the snap fastener. The surfaces of the opener have no sharp discontinuities which can result in breakage if additional pressure is applied at the end of the opener opposite the wedge end to pry open unyielding snap fasteners. The opener is small and has an opening which allows it to be carried on key holders such as key chains and key rings.

Abstract: A transparent plastic shield for a tile saw includes four dismantable panels, two vertical side panels, a back panel and a top panel. The components are quickly assembled together via slotted edges or connecting extrusions and when dismantled stack flatly within the water tray which is included as part of the tile saw apparatus. The tile saw shield is configured to allow normal use of the tile saw, without encumbering the user. It contains water from spraying out of the tray, to the extent that the tile saw can be used in an interior setting.

Abstract: There are disclosed, in combination, a resiliently compressive, porous rotary buffing pad and a pad holder adapted for use in floor polishing machines. The pad holder is of one piece construction and is formed about its perimeter and toward its center with areas which compress the pad to increase friction with a floor during polishing while reducing overall energy requirements. Immediately adjacent to each such compression area the pad holder defines an area which does not contact the pad and which promotes filtering and storage of particulates. This combination, with adjacent integrally connected compression, non-compression areas promotes efficient polishing with reduced energy resulting from the use of discreet compression areas; and dust or particulate absorption and storage within the non-compression areas.

Abstract: A polishing apparatus which can effectively polish a bottom wall of a wafer in the notch portion is disclosed. The polishing apparatus includes: a table for supporting the wafer thereon; a rotary buff having a thickness so that the periphery thereof can enter the notch portion of the wafer, and is rotated around an axis which is parallel with a plane of the surface of the wafer supported on the table; a first rotating member such as a motor for rotating the rotary buff; a movable linkage for supporting the rotary buff; an adjusting member such as a cylinder device for adjusting the pressure applied to the bottom wall of the wafer in the notch portion from the rotary buff; and a second rotating member such as a pulse motor for turning the rotary buff around a predetermined axis so that the applied pressure from the rotary buff acts on the bottom wall of the wafer in the notch portion in a direction approximately perpendicular to the surface of the bottom wall.

Abstract: An optical connector tip polisher which comprises a stationary block for supporting a wheel spindle stock, a manual slider for supporting an optical connector and a cam mechanism. The stationary block has a base for mounting the wheel spindle. The base has a guide space and a guide opening. The manual slider has a horizontal stock, a post and is a holder. The horizontal stock is fitted in the guide space of the base and restricted against movement in the vertical direction while being movable along a horizontal plane. The post is embedded in the horizontal stock and is movable in unison therewith. The post extends upright through the guide opening of the base. An idling wheel is provided between the inner periphery of the guide opening and the outer periphery of the post to guide the post along the inner periphery. The holder is secured to the post at an intermediate position thereof and holds an optical connector to perpendicularly press the tip of the optical connector against the wheel spindle stock.