Abstract: There is provided an improved forcep or rongeur having a jaw mechanism comprised of a barrel member having a honed cutting edge on one extremity thereof and having a shaft member located within and arranged for reciprocal motion. On the shaft member there is provided a plate member attached at one extremity to trap bone against the cutting edge. A lever mechanism is provided having paired handle levers joined by a pivot and having the barrel and shaft members attached to the handle levers between the handle portion and the pivot. On the shaft member there is further provided a cavity arranged to slide within the barrel progressively as the cutting operation proceeds, gradually drawing severed bone within the capturing cavity.

Abstract: A combustion air blower assembly for a furnace includes a casing, a blower in said casing and a motor for driving said blower secured to said casing. This invention provides unique mounting means for securing the motor in close proximity to the casing, while allowing motor flexure in a direction radial to the axis of the motor to dissipate torsional vibration energy and maintaining the structural integrity of the motor in the axis thereof. The mounting means comprise a plurality of generally J-shaped isolation springs having a loop at each end. One loop of each isolation spring is secured to the casing and the other loop is secured to a bracket on the motor. Each isolation spring is generally flat and extends generally perpendicular from the wall of the casing to which the motor is secured.

Abstract: An automatic tilt adjusting bracket for connection between a pole handle and a concrete float blade. The bracket includes a base member, a cover member and mechanical linkage interconnecting the base and cover members. As the pole handle is pushed and pulled, a force is applied to the cover member pivoting the base member relative thereto for automatically lifting the leading edge of the float blade.

Abstract: A ball projecting machine comprises a ball striker in the form of a bar secured to a shaft rotatably mounted by bearings in a part of a machine frame. The striker carries a pin on the same side of the shaft as the end of the striker which strikes the balls. A tension spring is connected between a fixed part of the machine frame and the pin to bias the striker. The striker shaft is arranged to be rotated by a manually operated lever so that during a cycle of rotation of the striker in the striking direction, the tension spring is stressed during a first part of the cycle and during a second part of the cycle urges the striker to rotate in the striking direction. The lever is connected to the shaft through a first one-way clutch including a coil spring and drums fixed respectively to the lever and to the shaft. The shaft is connected to the machine frame part through a further one-way clutch including a coil spring and drums fixed respectively to the frame part and to the shaft.

Abstract: A process for making a homogeneous melt for producing mineral wool insulation. This insulating material is made from waste products namely, bottom ash, cement kiln dust, slag, and waste from mineral wool production. These materials, along with a binder, are homogenized into a mixture. Thereafter, the process includes briquetting the mixture into agglomerated pieces. The agglomerates are then melted in a cupola furnace and the molten agglomerate is discharged into a receiver. Hot combustion gases are then passed into the melt or molten agglomerate to chemically homogenize the melt and heat the melt to preselected temperature. Thereafter, the melt is converted into fibers using conventional practices.

Abstract: A hydraulic cylinder usable as a shock-absorbing trim and tilt cylinder for adjusting the position of an outboard motor or outdrive unit of a boat, is provided with a piston including pilot-operated valve means which stepwise responds at a precisely setable pressure, to pressures resulting from impact of an outboard motor or outdrive unit upon an obstacle, the valve means then departing as a poppet-type relief valve to allow the outboard motor or outdrive unit to return to operative position following the impact. The hydraulic cylinder is provided with an integral conduit formed by milling a groove or slot from a point adjacent its mounting end to the point adjacent its rod end, and fastening a cover over the groove.

Abstract: A device for measuring small distances, provided with a sensing tip mounted to be movable in the direction of the length to be measured, a transducer for converting the movements of the sensing tip into corresponding electric signals, and indicating means to indicate such signals. The transducer comprises an optical interferometer provided with a measuring waveguide. One end of the waveguide is connected to a laser and the other end to optical means for directing the light onto a measuring mirror disposed at a distance. The light is reflected by the mirror back to the optical means. The measuring mirror is connected to the sensing tip. The interferometer further includes a reference waveguide linked to the measuring waveguide. The reference waveguide has a mirror disposed at one end and a photoelectric transducer at the other end. The transducer is connected to the indicating means for indicating the output signals of the transducer.

Abstract: A basketball game for mounting on a conventional door, in which a backboard and rim are height adjustable relative to the face of the door. A pair of U-shaped brackets receive the top and bottom edge of the door and a vertical pole is mounted between the brackets. The brackets are tightenable relative to one another for rigidly holding the apparatus to the door. The one U-shaped bracket located at the top edge of the door includes a relatively thin L-shaped metal member and a relatively thick front member. The L-shaped member has a first leg for seating against the backside of the door and a second leg for seating against the top edge of the door. The thick front member has a first face for seating against front face of the door and a second top face for abutting a portion of the second leg of the L-shaped member. A screw secures the second leg to the second top face of the front member.

Abstract: A cylinder lock with a removable plug incorporates a series of spring biased combinating disc tumblers which cooperate with a first key in normal lock operation. An additional, unbiased control tumbler at the end of the plug cooperates with a retention flange associated with the cylinder to retain the plug against removal from the cylinder while permitting rotation of the plug in the cylinder. The control tumbler includes a notch for receipt of the first key as well as a second, plug removal key. The first key acts against one edge of the notch to displace the control tumbler into a position which ensures that the tumbler will remain engaged with the plug retention flange regardless of the orientation of the plug.

Abstract: A circuit tester is described herein and includes a housing closed by a removable cap member. An electrode, or wire contact, extends through the cap member and electrically interconnects with a bulb, fitted within the housing. The electrode carries a spring-biased catch member which is used to select and capture the wire under investigation.

Abstract: An improved portable bathing apparatus useful for washing toxic substances from a patient in a prone position includes a support platform mounted on a support frame, a circumferential rail with a sheet attached to the rail, the rail being movable between a position parallel with the table to a position above the table to define a vessel. Specialized liners may be positioned within the vessel for use when bathing a patient to wash toxic substances therefrom. A stretcher with a special stainless steel construction and configuration is provided for support of a patient within the vessel.

Abstract: A relatively thin thermoplastic sheet material, vacuum molded to form a sign letter base including hollow wall members and hollow light-fixture supports upstanding from a single-thickness horizontal bottom member. The base inverted forms a mold itself for receiving a flexible plastic foam inserted to a suitable height and disposed within the vertical walls and fixture supports for providing compressible elasticity to the thin molded sheet in predetermined locations for enabling cooperative interaction of the same with retainer members used to secure a display sign face and gas filled lighting tube structures in proper location onto the base. A rigid polyester resin is cast as a ring encircling the letter walls, located and supported by the flexible foam to stabilize and support the thin nature of the base.

Abstract: A tool to remove the universal joint boot of a front wheel drive vehicle is disclosed. The tool includes a U-shaped yoke and two differently sized split rings which are individually secured to the U-shaped yoke. The tool further includes a driver attachment affixedly attached to the yoke to accommodate an air hammer.

Abstract: A tool tray assembly for use in a tool chest is disclosed. The assembly includes a tray member, a rotatable, lockable handle attached to the tray member, and a storage box adapted to rest in the tray member.

Abstract: The invention concerns a depository for radioactive waste and spent fuel cells comprising a concrete storage block in which several vertical storage and cooling channels are provided for accommodating the radioactive waste and the fuel cells. In order to provide an improved and safer concrete depository vis-a-vis the state of the art, the storage block is composed of several concrete blocks disposed beside and above one another. In the concrete blocks there are several vertical channels. The aligned channels of several concrete blocks placed on top of one another form storage and cooling channels for accommodating tubular storage containers for the radioactive waste and radioactive spent fuel cells. An annular gap is left for cooling air between the outer wall of the storage containers and the inner wall of the storage and cooling channels.

Abstract: Process and device for sealing barrier constructions in subterranean galleries, especially in salt mines. In the process, a fluid sealing medium is filled into a hollow space and is maintained at overpressure relative to the pressure of a stressing medium. With the device, a hollow space is filled with a sealing medium, maintained below overpressure, and positioned between the part of the gallery to be protected and the part of the galley in which a stressing medium is present. The sealing medium is stressed with a preset pressure and at the pressure of the stressing medium. The hollow space has a pressure shaft, in which the sealing medium stands at a predetermined level. The part of which is located above the level of the sealing medium is connected with the gallery in which the stressing medium stands. Through this, it is ensured that a specific overpressure is always present in the hollow space.

Abstract: A teleconferencing system for connection to telephone lines or other communication links. Directionally gated microphones receive local speech for audio send signal transmission to the far end on the telephone line, and audio receive signals from the far end are output locally via a loudspeaker. The outgoing send signals and incoming receive signals are automatically suppressed in accordance with user and setup controls (volume and suppression) and in accordance with the strength of the incoming receive signal. When the system is in a send mode, the receive signals are suppressed to a lower audible level; when the system is in a receive mode, the send signals are suppressed. The mode of the system is switched during conversation. When simultaneous talking (speech from both ends) occurs, priority is given to the interrupting party.

Abstract: A sewing machine for securing annular rings to a curtain along a line is provided with feed chute means for receiving the annular rings and feeding them sequentially to a sewing position. The feed chute means comprises a chute body having a track defined therein, a retaining tab adjacent the open end of the track for at least partially blocking the track to prevent discharge of annular rings from the chute body, a spring biasing the retaining tab to a track block position and a slot defined in the chute body adjacent said open end.In use, the retaining tab blocks the track, with an annular ring in position over the slot so that the sewing machine can secure the annular ring over the slot to the curtain. After the annular ring is sewn to the curtain, the curtain is pulled to cause the retaining tab to yield while the sewn annular ring is removed from the chute body and the next annular ring is advanced to the position over the slot for sewing to the curtain.