Abstract: An excavating tooth including an adapter, a wear cap for the adapter and a point in which the point and adapter have primary cooperating stabilizing surfaces and in which the point and wear cap are equipped with inter-engaging flanges to provide secondary stabilizing surfaces.

Abstract: A digging tooth assembly for an excavating machine including a digging tooth having a resilient housing for mounting the tooth to the forward end of a digging tooth shank. A wedge-shaped projection or retaining member is mounted to the top surface of the shank for locking engagement within a cut-out or socket formed in the housing for mounting the digging tooth. The digging tooth is held on the tip of the shank by the locking coaction between the wedge-shaped projection and cut-out and the resiliency of the housing. The top surface of the digging tooth abuts against the flat bottom surface of the shank such that impact forces are transmitted through the resilient digging tooth housing to the shank thereby providing the digging tooth with increased flexibility and longer wear life. The present construction provides for vertical cutting action by the digging tooth shank and horizontal cutting action by the digging tooth for improved loosening of the earth being excavated.

Abstract: A rear-view mirror mounting apparatus for attaching a rear-view mirror to a windshield includes a substantially flat, receiving member and a hollow, inserting member which is slidably received within the receiving member. The receiving member includes a tapered, dovetail-like receiving channel which is symmetrical about the longitudinal centerline of the receiving member. The inserting member is contoured at one end with a spherical element suitable for receipt by a pivot mechanism or similar interconnection means and the opposite end is contoured with a flared, conical shape. The bottom edge of this flared, conical shape includes a leading edge portion, a trailing edge portion and two side edge portions. The two side edge portions are disposed in a first plane and the leading and trailing edge portions are disposed in a second geometric plane parallel to the first, the two side portions are suitably sized and spaced so as to fit beneath the undercut side edges of the receiving channel.

Abstract: A body formed of a plurality of individual elements is connected together via tongue and groove connections. The tongues have flanks which are inclined with respect to the base of the tongue and converge with increasing distance from the base, while the associated grooves have a corresponding shape. The flank or flanks of the tongue is provided with projections or recesses which engage recesses or projections respectively on the abutting flanks of the associated grooves.

Abstract: A cooker of the type having a series of vertically oriented skewers disposed in a circle about a central vertically oriented heating element, the skewers being individually rotatable relative to the heating element. In this rotary skewer cooker environment, this invention is directed to a novel skewer chimney structure which promotes even cooking of food on the skewers as well as easy removal for cleaning, and a novel skewer drive mechanism which allows the individual skewers to be easily removed and reinstalled during use of the cooker.

Abstract: A ferrule joint for a fishing rod blank made from joining plural flexible tapered resin shafts having hollow cores disclosed. The ferrule joint comprises a ferrule integral with one end of a first shaft. The ferrule has a tapered bore extending inwardly from the end of the first shaft. The hollow core end of a second shaft is insertable into the bore to frictionally interlock the shafts together. A transition section integral with the first shaft has a tapered bore joining the tapered bore in the ferrule to the hollow core of the first shaft. The tapered bore in the ferrule and the tapered bore in the transition sections are formed from plural overlapping patterns of fiber reinforced resins superimposed on the first shaft around the hollow core.

Abstract: This invention comprises an adapter for connection with a backhoe bucket, and includes a blade member having an inclined plate secured thereto to form a wedge into which the teeth of the bucket may insert, while ratchet and turnbuckle combinations connect with the adapter, extend upwardly along either side of the bucket, and are secured by means of a cross bar, or other clamping means, to the upper back side of the bucket, and when tightened assure the firm retention of the adapter upon the backhoe as during its use for tamping, slicing, grading, or other work upon the soil.

Abstract: A plow shank has a digging blade attached to the lower extremity thereof by an adaptor. The digging blade has an inclined upper arcuate surface to which the adaptor is releasably secured. The adaptor is also releasably secured to the lower extremity of the shank, such that the blade is located below the lower extremity of the shank to enable the blade to present a low forward facing rounded profile.

Abstract: A rigid coupling between two rotating machines wherein one half of the coupling is provided with a boss which is inserted into a recess provided in the other coupling half. In order to center the boss in the recess, a centering ring is applied to the boss, the external surface of the ring which engages the wall of the recess having a conical configuration with a gradient of from 1:100 to 1:1000 which corresponds to a slope of from 1:200 to 1:2000 respectively. As an alternative, the centering ring can be applied to the wall of the recess, in which case the inner surface of the ring which engages the surface of the boss would be given a conical configuration.

Abstract: A connector comprising a tapered socket component, a complementary tapered spigot component and a sleeve component for location between the socket component and the spigot component, the sleeve component and one of the other components being screw engageable, whereby, in use, screwing together of these components laterally deforms the sleeve component to clamp the spigot component within the socket component.

Abstract: A progressing cavity, positive displacement rotary pump for liquid or semiliquid material, having a specially designed flexible coupling shaft for connecting a drive shaft to an orbital rotor. The pump components include a tubular stator with an interior helical surface and a hollow tubular orbital rotor within the stator operably connected to the shaft and having an exterior helical surface. The rotor and stator define therebetween sealed pumping cavities that advance axially as the rotor rotates and orbits within the stator. The rotor has a tapered socket with a polygonal transverse cross-section (e.g., pyramid-shaped) at its outer end. The rotor is coupled to the rotor drive shaft by the flexible coupling shaft that extends through the hollow rotor and that has an enlarged tapered head formed to fit tightly in the socket and be retained therein by a threaded fastener. The opposite end of the coupling shaft is connected to the drive shaft outside of the rotor.

Abstract: The zero backlash spline coupling for a pair of shafts includes a first shaft having an integral flange and an internal frusto conical surface mateable with the frusto conical surface of a radially cut collar. The collar has internal spline teeth with one tooth on either side of the radial cut eliminated. The collar encircles a second shaft which has externally cut splines and abuts an internally spline-toothed keeper which also encircles the second shaft. Bolts passing through the keeper and into the flange draw the two together and force the collar to friction seat in the first shaft and lock onto the splines of the second shaft while providing a positive torque retention load on the bolts.

Abstract: A contact clamp for graphite electrodes, which comprises a shaft, the one end of which is shaped as a cone, while the other ends with a neck, onto which there is seated a metal hub shaped as a truncated cone, and to the shaft there is fastened a current-carrying disk, which is in contact with current-supplying brushes.

Abstract: The multi-sectional driveshaft for a multi-unit rotary piston mechanism has a plurality of driveshaft sections of identical configuration, arrangted co-axially with the end portion of one section telescopically engaging the end portion of a next adjacent section. Each section comprises an elongated body having an axial bore therethrough and an eccentric portion between the opposite end portions of the elongated body. One end portion is of reduced size with a shoulder extending normal to the axial bore. The other end portion of each section has a portion of the axial bore adjacent thereto of a size and configuration complementary to the one end portion for receiving and engaging the one end portion of the next adjacent section.

Abstract: The ferrule joint includes a ferrule and an element telescopically insertable into the ferrule to frictionally interlock two rod sections. The ferrule and insertable element are integral with respective mating ends of the two rod sections. The ferrule joint is particularly suitable for use with sectional rods fabricated of tubular hollow core reinforced resin rod blanks which are of relatively small cross section and which employ stiff fibers such as boron or graphite as resin reinforcement.

Abstract: An ignition rod for an oxygen flame cutting and welding apparatus comprising a plurality of individual rod elements and a device for feeding the ignition rod from storage to a point of use.

Abstract: A hand-shovel assembly consisting of a metal shovel head and a wooden handle, the head having a socket for receiving the end of the handle which is forced into the upper open end of the socket and is retained therein without the use of rivets, screws, or other fasteners. The handle end is retained in the socket by means of a set or cured adhesive which is inserted in a viscous state into the open lower socket end and, while still viscous, is forced around the inserted end of the handle by means of a plug of wood driven into the lower socket end.

Abstract: An earth boring apparatus includes individual cutting elements positioned within corresponding individual sockets in the cutter member body of the apparatus. Each socket has a socket wall and each cutting element has a lower body portion with a surface that contacts the socket wall. In one embodiment the sockets are cylindrical and a substantial portion of the lower body surfaces have a conical taper. This provides an improved fit of the lower body surface along the length of the socket wall and reduces cutting element loss.

Abstract: The invention relates to a drill bit for use in percussion drilling. The drill bit has a solid bit body, has cutting members on its face and a centrally disposed rod-receiving hole in its rear portion. The hole has, in part, a conical internal surface and a cylindrical internal surface in front of said conical internal surface. Said cylindrical internal surface is provided with an internal thread at a distance remote from the bottom of the hole. A cooperating drill rod has a forwardly tapering portion with a conical exterior face complementary to the conical interior surface in the hole of the drill bit and an external thread on its forepart.

Abstract: The arrangement comprises an earth raise borer stem which is formed with a tapered surface, near one terminal end thereof, for slidably engaging and forming an interference fit with a similarly tapered collar within the center of a cutterhead. The stem further has, at the lowermost end thereof, according to one embodiment, a bolted-on flange plate which has a series of rectangular cutouts formed therein. The cutouts receive lugs which are also bolted onto a lowermost surface of the cutterhead. The cooperating tapered surfaces of the collar and the stem cooperate to react thrust and torque which is impressed through the stem to the cutterhead and the cutout flange plate impresses rotary torque onto the cutterhead by means of the lugs. The arrangement provides a simple and facile arrangement for replaceably coupling a stem and cutterhead.

Abstract: An articulated boom of high strength to weight ratio is disclosed including an inner steel boom of modified trapezoidal cross-section including a top web, inclined opposed side webs and an arcuately curved bottom web; a pivotal elbow connector is mounted on the outer end of the inner boom and supports the inner end of a tapered hollow fiberglass shell defining an outer boom member of inverted modified trapezoidal cross-section including a top wall having progressively decreasing width from its inner to its outer end, opposed side walls which progress inward from top to bottom with the degree of inward taper decreasing from the inner end to the outer end of the outer boom and with the lower ends of the side walls being connected by an arcuate, downwardly convex hollow connector wall opposite the top wall.

Abstract: A slip joint construction for a tubular pole section of a utility pole such as for electrical transmission or lighting wherein a male portion of a tapered pole section fits telescopically within a female portion of another tapered pole section. The female portion is provided with a back-up strip extending along the long seams thereof. The male portion is provided with slots which extend along the long seams thereof, each slot extending the length of the slip joint. A doubler plate is welded on the inside of the male portion to extend across and along the longitudinal extent of each slot.