Abstract: A device for protecting shellfish dredge chain bags, featuring arcuate strips of reinforced rubber adapted to be attached to trail beneath the bottom side of the bag to cushion and separate the bag from abrasive action against the ocean floor when it becomes weighted with rocks and shellfish. These strips, in curved form, are cut from the tread or side wall portions of used vehicle tires and are attached to the chain bag in a manner that protects the forward edge and corners of the strip from catching on the ocean floor while allowing the longer portion of the reinforced rubber strip to trail beneath the chain bag. An array of closely adjacent strips effectively defines a wear-resistant surface of the chain bag.

Abstract: The invention relates to a blade holder of the hacksaw type which comprises a C-shaped portion spanned by a blade having a conventional pair of projections being receivable in a slot having a cruciform or T-slot in one arm of the C-shape and the other pair in a similar slot formed in a lever pivotted to the other arm. Movement of the lever from a loading position to an operative position imparts tension to the blade and in the example shown, involves movement into an over-center condition of the lever with respect to its pivotal mounting. The lever has an abutment surface projecting outwardly from its end portion adjacent the pivotal mounting so as to contact the second arm member when the lever is in its loading position to thereby act as an end stop.

Abstract: Broach sharpening machine in which a slide mobile in a direction transverse to the longitudinal axis of a broach to be sharpened supports a sharpening slide provided with a grinding wheel head, and a feeler unit arranged to determine the position of each broach tooth relative to the grinding wheel and comprising an articulated parallelogram in which a drag link is provided with a coupling element arranged to cooperate with the broach teeth, and is connected by two resilient cranks to a frame so that it rotates with this latter about a horizontal axis perpendicular to the broach axis; the feeler unit comprising a sensor for detecting the movements of the frame about its axis of rotation and the axial movements of said drag link, and a resilient element arranged to rotate said parallelogram so as to move said coupling element towards the broach.

Abstract: A felt pad having a beveled front end is produced from a workpiece having a flat bottom with an adhesive thereon covered with a strip of paper or the like and a straight front end. The apparatus includes a rotatable shaft having mounted thereon an abrasive wheel and a wire brush wheel including a cylindrical portion of the same diameter as the abrasive wheel abutting the abrasive wheel and a tapered portion extending toward the shaft axis. A shear plate provides a cutting surface with the abrasive wheel. The workpiece is mounted on a table and fed parallel to the shaft axis with its forward end also parallel thereto. The rotating brush bevels the front end of the pad and fuzz still attached to the pad is removed as it passes between the abrasive wheel and shear plate. A shroud surrounds the wheels and a suction is applied thereto to draw off the materials removed from the workpiece.

Abstract: An improved gill net hauling and fish picking system employing a net modified by incorporation of a longitudinal suspender line secured to the mesh along its length midway between cork line and lead line. With the suspender line caused to run over an elevated net guiding support, preferably in the form of a split sheave device, in approaching the storage drum, the halfwidth panels of the net draped from the suspender line are spread out and the mesh opened up to facilitate removal of fish therefrom.

Abstract: A rotating cutter cuts rough lathe stock into finished dowels sized to the desired dimension. Collars of predetermined length vary the distance between the rotating cutter and the tool. The body of the tool opposes the thrust of the revolving work piece away from the rotating cutting blade and supports stock of small diameter which is flexible and may otherwise bow or whip as it revolves on the lathe between the lathe headstock and tailstock. By twisting the tool, dowels may be finished undersize as needs demand.

Abstract: In a cam grinding machine, a first diaphragm chuck is provided on a spindle rotatably supported on a rocking table for clamping one journal portion of a cam shaft and a second diaphragm chuck is provided on a support spindle rotatably and slidably supported by a tailstock in coaxial alignment with the spindle for clamping another journal portion of the cam shaft. Accordingly, cam portions of the cam shaft are ground with journal portions of the cam shaft being used as a reference.

Abstract: An apparatus for abrading and finishing the inner surface of an unusual shape, for example the inner ring of a gerotor device, with a tool holder adapted to carry honing stones for movement along the part surface and driven by a mating part engaging a stationary ring mounted inside the assembly and affixed to the drive spindle housing. The stationary ring has an identical shape to the workpiece being machined to guide and synchronize the tool holder in an eccentric path during the abrading operation and the workpiece and stationary ring are orientated to maintain the synchronous relationship. The apparatus while being rotated is also reciprocated transversely to the workpiece surface causing the stones to move in a helical path.

Abstract: A chisel for turning a workpiece spindle has a semi-circular template notch in one end of an elongated blade in combination with a cutting edge and guiding tongue. A beveled portion of the narrow blade forms the cutting edge at one terminus of the notch, and the tongue extends outwardly from the other terminus in diametrically opposed relationship to the cutting edge. The rotating spindle is guided into the constant radius notch by the tongue to permit cutting of a variety of intricate contours in the spindle without gouging and assuring accuracy and reproducibility in turning operations.

Abstract: An automatic hooksetting fishing rod holder including a mounting member formed of a strap including a stake section; a pivot carried by the mounting member; a holder arm member pivotably connected to the pivot and including a forward portion extending on one side of the mounting member for engaging a fishing rod handle; a spring interconnected between the mounting member and the holder arm member to urge the forward portion of the holder arm upwardly; and a latch including a pawl pivotably attached to one of the members and a pawl engaging seat on the other of the members for restraining upward motion of the forward portion of the holder arm member until a downward force on the forward portion disengages the pawl and seat.

Abstract: Shank and knife portions of a cutting tool having particular known utility in the leather tooling art are permitted to swivel within a sleeve member that is held in the chuck of a conventional electrical vibrating tool holder. An angular extension of the shank portion is bevelled to provide the knife portion of the cutting tool for contacting a leather work piece. The ease with which the shank and knife portions of the cutting tool are permitted to swivel is controlled at the time the cutting tool is inserted into the chuck of the tool holder by urging the sleeve against a spring that is coaxially positioned over the shank portion of the cutting tool between the sleeve member and a shoulder that serves to terminate the shank portion.

Abstract: A device for abrading objects comprising a supporting surface for the object, abrading means operative near the supporting surface and a driven, endless conveyor belt arranged at a distance above the supporting surface, whereas the lower run of the belt is pressed upon the object, wherein the device is provided with a suction cabinet supported by the frame of the conveyor belt and having suction apertures turned towards the top side of the lower run for drawing the lower run against the suction cabinet; the cabinet is connected through a conduit with an outlet channel for conducting away chips.

Abstract: A method of finishing a glass surface to a close tolerance and a substantially blemish-free state using a moving polishing lap and an aqueous treatment liquid containing inert abrasive particles, in which the treatment liquid also contains a bifluoride which reacts with the glass to form an insoluble silicofluoride or fluoride, an acid supplying hydrogen ions and a solubility suppressant which ensures that the silicofluoride or fluoride separates out on the glass surface, whereby the lap and inert particles remove the silicofluoride or fluoride from high portions of the glass surface and thereby allow further reaction and glass removal in those areas until the desired finished form of the glass surface has been achieved, whereupon the supply of treatment liquid is stopped and immediately replaced by a supply of an alkaline neutralizing solution, e.g.

Abstract: A utensil such as a lobster fork, or lobster pick includes a handle and at least one tine having a plurality of substantially frustro-conical members end-to-end, each of progressively larger diameter from the first, or tip, member through the second member to a third member, the three members forming an enlarged barbed spear head at the end of each tine. The base of each member is dished and concave, the peripheral outer edge of each member is blunt and rounded and there are three elongated grooves spaced 120.degree. apart extending along the tapered members of the spear head.

Abstract: Automatic tracking of an endless belt, such as a coated abrasive belt, is provided by fitting the belt with at least one permanent magnet, preferably of a flexible, rubber bonded sheet-like variety such as is conveniently adhered to the backside of the belt. One or more magnetic sensors positioned transversely to a longitudinal line defined by the path of the magnets as the belt is driven between rollers detect the magnets in the event the belt exceeds an allowed extent of transverse movement, in which event a control signal is generated which activates a steering mechanism causing the belt to move in the opposite transverse direction.

Abstract: A method of controlling cockroaches by irradiation thereof using ultraviolet rays.

Abstract: A fishing lure system is presented wherein a lure comprised of a central core including hook hangers, leader connection apparatus, and a cavity for receiving one of a plurality of depth controlling weights is provided in combination with a plurality of calibrated depth controlling weights, a plurality of fish attracting designs adapted to encase the central core, a clear plastic shell adapted to encase the central core, selected depth controlling weight and fish attracting design and a band which secures the lure components together and provides action imparting surfaces.

Abstract: A cutting tool for cutting flexible plastic conduit, formed by a pair of handled jaws pivotally connected intermediate their ends. One jaw is box shaped in cross-section and forms a handle which supports a knife blade, which has a longitudinal cutting edge. The other jaw is generally channel-shaped in cross-section and forms a handle with a semi-circular concave anvil at one end. The anvil has an axially extending slot therein for receiving the cutting edge of the knife blade when the handles are closed together with the box-shaped handle nested within the channel-shaped handle. A conduit supported in the semi-circular anvil is cut by the knife blade as the handles are squeezed together.

Abstract: A rodent trap comprised of an enclosure having a hinged lid for sealing the enclosure and an automatic closing mechanism for automatically closing the lid when a rodent enters the trap. The closing mechanism is comprised of a platform in the enclosure and a latch means for latching the platform in a fixed position. The latch is connected to the lid so that weight applied to the platform trips the latch and closes the lid sealing the container and trapping the rodent inside the enclosure.

Abstract: An assembly for determining the center of a stud or joint supported electrical outlet box on a sheet of dry wall prior to the latter being permanently secured to the studs or joints, and for forming an opening in the dry wall as a result of the determination that will be transversely aligned with the interior of the outlet box when the sheet of drywall is permanently secured to the framing supporting the outlet box.