Abstract: According to the present invention, a control system is provided for advancing and retracting the knife and pressure bar carriage of a veneer slicer. This system replaces the conventional feed screw carriage actuator and permits the knife and pressure bar tilt mechanism to be eliminated. The control system includes a hydraulic linear actuator for incrementally advancing and retracting the carriage and a programmable linear motion controller for controlling the sequence in which the linear actuator advances and retracts the carriage and the distance which the linear actuator advances and retracts the carriage. The controller includes a memory into which a program is loaded. The program determines the sequence, direction and distance that the linear actuator advances and retracts the carriage.

Abstract: A drill fixation device (F) to adapt a high speed drill (D) for use in vertebra drilling and cutting. The device includes a carrier (16) mounting the drill (D) for guided movement relative to a base (14) and a squeeze grip (22-24) connected between the base (14) and carrier (16) to enable a surgeon to selectively impart such movement to the drill. A foot plate (50) is fixed relative to the base (14) in spaced relationship to the carrier (16) so as to be in the path of the bit (12) of a drill (D) mounted on the carrier (16). In use, the foot plate (50) is positioned beneath the bone material to be cut to apply counterforce to the bone material as the drill cuts and shield nerve tissue from harm by the bit.

Abstract: Fine die stamping of workpieces from sheet metal is effected by clamping the workpiece between a die plate and guide plate, supporting the portion of the material to form the article by an ejector which is displaced along with the punch, and driving the supported portion of the material into a hole in the die plate having flanks tapered away from the guide plate and punch so that swaging occurs on the separated portion with or upon its separation from the balance of the workpiece material.

Abstract: An accessory for oxygen-acetylene cutting torches which extends their life by heat sinking the torch tip and nozzle while allowing the welder to maintain visual sight of the flame and cutting site at all times. A shield is formed which prevents cutting debris from falling on and blocking the nozzle orifices. The torch tip saver can be secured to a variety of different nozzles having varying outer diameter by means of an expansion fitting and an adjustable clamp. One form of the torch saver has a solid leading edge to prevent deformation of the torch saver if the torch saver is rapped against a hard surface.

Abstract: A system for providing the effect of an extended soundstage comprises a pair of stereophonic loudspeakers, each having a movable or vibrational element driven by a pair of voice coils including a principal or main voice coil and an auxiliary or enhancement voice coil. The principal voice coil of each speaker is driven in a customary manner from one channel of a stereophonic amplifier, while the enhancement voice coil is driven in a reversed phase sense from the output of the opposite channel, and sound is effectively provided over an extended apparent source having dimensions beyond the spacing between the loudspeakers.

Abstract: Hyperacidified tumors having high .beta.-glucuronidase activity can be treated with glucuronides with aglycones toxic to the tumor cells with great safety toward the rest of the body by first administering an alkalinizing agent in an amount sufficient to maintain the pH level of non-tumor tissues at approximately 7.4 during the glucuronide treatment. This will cause inactivation of .beta.-glucuronidase activity in the rest of the body. Novel glucuronides are disclosed the aglycones of which exert a higher toxic effect in an acid environment or is water-soluble only in an alkaline environment. Such compounds have particular utility with the above process. By substituting radioisotopes into the aglycone, diagnosis and in situ radiation therapy may be accomplished. Bacterial cells having .beta.-glucuronidase activity may also be diagnosed and treated in accordance with the present invention.

Abstract: A conveyor travels in a helical path and is driven by a plurality of drive sprockets which are mounted on a common drive shaft. Each drive sprocket includes a yieldable portion which moves relative to a ring gear of the sprocket when the conveyor encounters an unyielding resistance. A sensor is activated in response to relative movement of the yieldable portion of the sprocket to provide an indication of which drive sprocket has sensed the resistance to conveyor travel.

Abstract: A conveyor installation comprises a framework having stationary guides with plastic contact surfaces. A conveyor belt is mounted for travel on the framework and includes plastic carriers mounted on plastic chain links. The carriers are supported for sliding contact with some of the guides which define vertical support rails. The carriers are connected to the links by upstanding coupling members. Plastic clip-on sleeves are mounted on the coupling members for engagement with some of the stationary guides to minimize wear of the chain, while assuring a low friction sliding contact between the chain and the guides. Snap-on pan guides are insertable into recesses of the carriers.

Abstract: A tunnel-type boat-hull construction is operative with substantially reduced frictional resistance in the water and also with improved high-speed stability. An air-withdrawal port is provided in the bow portion of the tunnel, and exit ports which are interconnected to the withdrawal port are provided along generally downwardly facing submerged surfaces of the hull. When the boat hull is operated in a forward direction, air is captured in the forward portion of the tunnel, and a portion of the air is withdrawn through the withdrawal port and is exited through the exit ports. The air which is exited through the exit ports provides lubrication for the submerged hull surfaces so that the hull is operative with substantially improved efficiency; and because the air is withdrawn from the bow portion of the tunnel, the bow uplift effects which are characteristic of conventional tunnel-hull-type vessels when they have been operated under high-speed conditions are substantially reduced.

Abstract: A non-removable hanger for a picture frame comprises a pair of flat hanger members having openings at each end, threaded fasteners for pivotably attaching lower ends of the hanger members to opposite vertical sides of the frames and threaded fasteners for attaching upper ends of the hanger members to the wall. The hanger members are attached to the wall after being attached to the back of the frame by rotating or pivoting the picture frame against the wall so that the ends of the hanger members are alternately exposed. The exposed ends are screwed into the wall. A spring lock engages the hanger members and prevents them from pivoting once the frame is mounted and positioned in its proper vertical position.

Abstract: An adjustable mount which is particularly useful in attaching an appliance such as a television set or the like in a movable vehicle. The mount is operable to permit swinging of the appliance to and from any one of a number of preselected positions and for holding the appliance in the selected position. The mount incorporates a pair of mounting brackets, one of the brackets having a socket and the other bracket a ball presenting a ball-and-socket joint between the brackets. The socket has a centrally located opening and the one bracket has a slotted disc mounted thereon adjacent the opening. A bolt extends through the ball, the opening in the socket and through the slot in the disc. The bolt has a head on one end and a nut on the opposite end. With the nut loosened the brackets are swingably interconnected for positioning a supported appliance. Tightening the nut clamps the ball-and-socket joint to hold the appliance in the selected position.

Abstract: A chain saw gauging attachment having a fitting at one end adapted to be received under an existing nut on an existing stud of a chain saw, a rod extending outwardly from the fitting, means for firmly attaching the rod to the fitting, and an indicator which is slidably affixed to the rod and adapted to be fixed in predetermined positions. The fitting of the gauging attachment may be provided with a rotating means which permits the gauging attachment to be swung to the rear of the chain saw and away from the working area when not in use. When mounted, the gauge rod extends along the length of the work piece of a log to which is to be cut, and the indicator of the gauge rod enables the user to fix by sight the place on the log where the next cut is to be made. The gauge rod is slender and resilient whereby it will spring back to its original shape if accidently flexed.

Abstract: An opener structure for a container includes a slidable plate juxtaposed against an external wall of the container. Retainer devices such as rivets retain the plate against the wall but permit relative sliding between the wall and the plate. A resilient punch supported from the plate rests on a shelf defined by the wall. A region of weakness lies adjacent the shelf so that if the plate slides away from the shelf, the punch will pierce the line of weakness and rupture it. A lever is provided to cause the plate to slide away from the shelf.

Abstract: A ramp for a motor vehicle comprising means defining a ramp surface up which the motor vehicle wheel runs to a well into which the wheel drops and when therein is restrained from moving sideways, the ramp being collapsible to flattened condition for storage and transportation. The ramp is in three sections or frames, an upper frame, lower members to which the upper frame is pivotally connected, and a strut frame which acts as an inclined a strut keeping the upper frame at the correct angle. The frames and members can be disengaged to enable the ramp to be collapsed.

Abstract: A vehicle alarm system sensing unauthorized use of the vehicle and providing a warning signal for a predetermined warning time interval which may be extended as desired. A latching circuit includes a bistable flip-flop with a capacitor discharging through a voltage divider circuit to define an extended warning time interval. Logic gates are switched to change the voltage divider circuit voltage reference levels to charge the capacitor during a predetermined exit time interval to inhibit warning signal actuation when exiting the vehicle. A re-entry timer is included to inhibit warning signal actuation when re-entering the vehicle.

Abstract: A plastic grocery bag (34) with cut-out carrying handles (35) is held in an open condition from top of a common trash basket or container (32) by means of attachments (49) for the top of such container. In one embodiment, a pair of attachments (49) are provided, each bent in a configuration whereby it is arranged to snap over the top edge (44) of the container and provide a self-supporting function so that the attachment stands up from such edge. Each attachment has a pair of upstanding ears (42), or a single, wide, horizontal support (51), around which one handle of the plastic bag is placed. Alternatively, each wire attachment can be bent to provide hooks (65) at its ends which loop under and grasp the edge of the container. As another alternative, each attachment can be a single or metal bent strip (67)(or a pair of separate members (75)) with upstanding ears (66) and a snap-type slot (67) or a pair of thumbscrews (69).

Abstract: A triple-edge safety razor in which no portions thereof are disconnected during use. The razor employs a novel blade assembly wherein three individual strip blades are interconnected by a flexible central web affording hinged connections therebetween. A number of methods of manufacture of the blade assembly are described.

Abstract: A pressure garment has a transparent exterior panel with a pair of lower sections adapted to be operatively positioned around the legs of the wearer, and with an upper section adapted to be positioned around the abdomen of the wearer. Transparent inner panels cooperate with each of the exterior panel sections to define pressure chambers therebetween. A pressurized gas such as for example compressed air, is introduced into the pressure chambers in order to inflate the same and apply pressure to the wearer's body.