Abstract: A trap for crustaceans capable of being knocked down to basic parts occupying a small volume and easy to assemble in little time. Also, sturdy enough to withstand handling, ship movement and underwater currents but at the same time being biodegradable in order to prevent it from becoming a perpetual crustaceans killing trap in the event that the buoy breaks off.

Abstract: This invention pertains to means for and a method of trimming branches of trees and particularly branches high above the ground, by means of spaced cutting collars with sharp teeth at one end crimped upon a flexible cable, without using a pole saw, climbing the tree, or using a ladder. Means are also provided in the form of lead weights, sand bags, etc., to carry the flexible cutting table into position over the branch desired to be cut.

Abstract: A multi-purpose water driven tool, including a water driven turbine mounted on a shaft for rotation in a housing, the housing having an inlet connected to supply water under pressure to rotatably drive the turbine, a housing outlet to discharge the water from the housing after it has acted on the turbine, said shaft extending outwardly of the housing, and a working tool on the outer end of the shaft to be rotatably driven thereby.

Abstract: An impact tool of the type including an elongated handle and an elongated transverse head on one end of the handle is provided. The head includes structure on a first end portion thereof, spaced inwardly of the outermost end, defining a seat surface facing along a path extending outwardly of the first end portion of the head for abuttingly engaging the head end of the nail thereagainst. The first end portion of the head further includes structure defining, outwardly of the seat surface, a pair of opposing elongated wedge surfaces generally paralleling the handle, disposed on opposite sides of the aformentioned path and divergent and convergent, respectively, toward and away from the other end of the handle. The convergent end portions of the wedge surfaces define a crotch in which to wedgingly receive the midportion of a nail disposed along the aforementioned path and having its head seated against the seat surface.

Abstract: A turret-type hand punch adapted primarily for punching holes in leather, imitation leather, or other plastic material. Means are provided on the punch to receive the cut portions of the leather or the like and to retain the same therein during the punching operation so as to prevent the littering of the area where the punching is taking place, with the punched out pieces of leather and the like.

Abstract: A cutting reel grinder is disclosed which includes an automatic control for operating the grinding device as well as an indexing device that advances cutter reel knives for sharpening by the grinding device. The control includes a pair of electrical actuators: one actuator driving the indexing device; the other actuator driving the grinding device so as to translate it axially of the cutting reel. In addition, a plurality of cam-actuated switches are employed that are positioned with respect to the indexing device and the grinding device so as to shift the control circuit between an indexing cycle in which the cutter reel knives are repositioned with respect to the grinding device and a grinding cycle in which a properly indexed cutter knife is sharpened by the grinding device. A simple and efficient mechanical indexing device is driven by the one actuator and includes a geneva gear arrangement.

Abstract: A tool assembly comprising a drive member, a driven member, and a torque transfer assembly for transferring torque applied to the drive member to the driven member when said members are engaged. The torque transfer assembly includes a male portion formed on one of the drive and driven members and a female portion formed on the other of said members, the male portion being engagable with the female portion via radial projections formed on the male portion which are inserted into mating recesses in the female portion.

Abstract: A system for aligning and regapping the guide grooves on a chain saw guide bar which includes a suitably adapted handheld swaging tool uniquely designed to return bent or worn guide grooves to the correct position and separation. The swaging tool contains a gauge which is adapted to fit in the center of the bar guide groove and a pair of swaging plates which are adapted to force the walls of the bar guide groove into proper relationship with one another upon the application of force to the swaging tool. The system may optionally further include a bar file guide which is adapted to file the peripheral edges of the chain saw bar.

Abstract: A golf tee awl for making holes in the ground to make it easier to insert golf tees. The awl has a circular knob-shaped handle with a sharpened shank or spike protruding therefrom and a protective sheath which covers the sharpened shank when the awl is not in use. The sheath has a tubular shank receiving member which is pivotally connected to a clip which fits on the belt of a person using the awl. The tubular member can be rotated to a position with the open end of the member extending upwardly to hold the tee awl or it can be rotated to a position with the open end extending downwardly to make it easier to remove the awl by pulling it downwardly out of the sheath. The sheath and handle are preferably made of plastic and the shank and the clip for the sheath are preferably made of metal.

Abstract: Improvement in the method for making metal filament by depositing molten metal onto the peripheral surface of a rotating annular chill roll and separating the solid filament from the chill roll, which involves applying tension to the filament, after it has been separated from the chill roll, along the direction of a tangent to the chill roll past the point at which the filament separates from the chill roll by centrifugal action, to thereby prolong its contact with the chill roll. Apparatus is provided for practice of the method.

Abstract: A screwdriver has an undercut enlarged foot portion and an anti-shift pivot element of one-piece therewith. The screwdriver is longitudinally inserted into a screw such that the foot portion and the pivot element are respectively received with clearance in an undercut slot and a central cavity formed in the screw head. Rotation of the screwdriver about the pivot element causes the foot portion to slide partially underneath and grippingly engage the side walls of the slot. A screwholding attachment is adjustable in fine, continuous manner relative to the screwdriver.

Abstract: A forage harvester includes a rotary cylinder-type cutterhead mounted in a housing and having a plurality of knives with cutting edges that generate a cylinder as the cutterhead rotates. A sharpening mechanism for the knives includes a pair of closed housings mounted on the opposite side walls of the cutterhead housing and a support member extending between said housings adjacent the cutterhead housing periphery, the opposite ends of the support member extending through openings in the housings and into the housing interiors. The openings are substantially larger than the support member to permit adjustment of the support member toward and away from the cutterhead periphery, and a pair of flexible seals are interposed between the ends of the support members and the respective housings to seal said openings.

Abstract: A readily and easily manipulatable tree girdling device is provided which effectively removes a complete circular band of bark and all that underlies the bark to the central portion of the tree so that fluid cannot pass from the root system of the tree to the upper portion of the tree whereby with the elimination of such fluid transmission the tree dies. This operation is called "girdling." In many areas it is practiced widely as a method of improving the ecology of the area.

Abstract: A window putty removal apparatus is provided which can be conveniently utilized with various window sizes and configurations without the necessity of removing the window sash from its frame. The apparatus includes an elongated flexible guide strip of variable effective length so that it can be applied to the stiles and muntins of different sized windows without removing the windows and a plurality of manual fasteners for securing the guide strip to the window sash adjacent to a strip of putty to be removed. The apparatus also includes a cutting member having a cutter mounted on a shank driven by a rotary power tool and an adapter element rotatably mounted on the shank and cooperable with the guide strip for guiding the cutter through the strip of putty as the power tool is moved longitudinally relative to the guide strip to remove the putty from the window.

Abstract: This technique for manufacturing a rotary rock bit involves forming a rock bit leg segment having an upper pin end and a lower shirttail end including a socket having a semi-cylindrical faying surface transverse to the axis of the rock bit being formed. A separately formed journal insert includes a journal pin for mounting a rock bit cutter cone and a shirttail portion transverse to the axis of the journal pin. The insert has a semi-cylindrical faying surface on the shirttail portion coaxial with the journal pin. The insert is fitted into the rock bit leg segment with the semi-cylindrical faying surface on the insert mated with the semi-cylindrical socket surface on the bit leg segment. The semi-cylindrical faying surfaces are then electron beam welded. A cutter cone is assembled on the journal pin and three such rock bit leg assemblies are welded together to form a rock bit which is completed with conventional machining operations.

Abstract: A screw head is provided with projections on selected of the driver-engageable surfaces of the head to interlock with surfaces and edges of the driver to reduce the tendency for the driver to slip out of the recess during driving and also to provide a temporary stick-fit between the driver and the recess.

Abstract: A rotary rock drill bit comprising a plurality of cutting elements or cutters mounted in the crown of the drill bit. Each cutting element comprises a thin planar layer of polycrystalline diamond bonded in the crown of the bit at a rake angle of between -10.degree. and -25.degree.. In another embodiment each cutting element comprises an elongated pin mounted at one end in the drill crown and thin layer of polycrystalline diamond bonded to the free end of the pin so as to be disposed at a rake angle of between -10.degree. and -25.degree..

Abstract: A safety razor comprising a handle portion, a platform portion molded integrally with the handle portion, and a cap portion molded integrally with the platform portion, a hinge portion interconnecting the platform portion and the cap portion, the cap portion being adapted by flexure of the hinge portion to overlie the platform portion, the cap portion being adapted for connection to the platform portion to securely fasten the cap portion to the platform portion.

Abstract: A wipe down roller for use in apparatus for applying tape to cartons in which the roller is mounted to swivel to allow for uniform roller contact and pressure application to the tape when such roller is engaged by an end wall panel of the carton which is skewed relative to the longitudinal travel course the carton traverses while passing through the apparatus.

Abstract: A knife comprises a tension rod insertable into an opening extending through a handle, and a bolt at one end of the handle and in threaded engagement with the tension rod for retaining a replaceable blade at the other end of the handle. The tension rod comprises two elongate parallel rod portions of rigid material, one of which is provided with pins engageable with holes in the blade for retaining the blade between adjacent ends of the rod portions. These ends of the rod portions are formed with at least one wedge surface for co-operation with a corresponding wedge surface on the handle. This knife construction facilitates cleaning, requires few parts and enables the blade and the tension rod to be readily withdrawn from the handle.