Abstract: An apparatus for enlarging the diameter of an existing bore within a turbine shaft or the like along a desired linear portion of the shaft having a boring head mounted on a drive shaft for rotation therewith after insertion within the existing bore. The boring head has a pair of opposed matable cutting tool means pivotally mounted within it which are radically advanced or retracted toward or away from the walls of the existing bore by operation of a cam assembly also mounted in the boring head for axial movement therealong and engaging an end of the tool means opposite the cutting head. The cam assembly is mounted for movement on a threaded transmission member which is rotated to move the cam assembly by an adjustment shaft positioned for calibrated angular movement within an interior passageway formed in the drive shaft. The boring assembly is rotated for cutting by a drive means engaging the exterior surface of the drive shaft and is linearly moved within the turbine shaft by a driven feed table.

Abstract: A flame guard assembly for mounting a handle upon a cooking vessel in a manner to facilitate assembly and to preclude relative rotation of the handle and the vessel. The assembly includes a tubular member with shaped ends for interfacing with the handle and the vessel and a safety interlock plate inserted over the handle attaching stud of the vessel and within the tubular member.

Abstract: An improved control and locking device for a hospital bed such as that disclosed in U.S. Patent Application Ser. No. 496,212, filed on Aug. 9, 1974. The locking device is utilized to provide a positive lock of the hospital bed in a Trendelenburg or reverse Trendelenburg position and eliminate the capability to manualy or inadvertently remove the bed from such position. As depicted herein, the locking device is a pivotal abutment which normally precludes release of a hook holding the bed in a Trendelenburg position. Yet, when the entire bed is raised by its electric motor, the abutment is automatically withdrawn from its abutting, locking position to permit the bed to lower under electric power.

Abstract: A flame guard assembly for mounting a handle upon a cooking vessel in a manner to facilitate assembly and for precluding relative rotation between the handle and the vessel. The assembly includes an out of round tubular flame guard having contoured ends for mating with the handle and the vessel and a locking plate interlocked to a bracket welded to the vessel. This locking plate receives a bolt extending through the handle and tubular flame guard for fastening the handle and has a non-annular external circumferential dimension for engaging the internal circumference of the tubular flame guard for precluding relative rotation between the handle and the vessel.

Abstract: An inflatable patient lifting device for a hospital patient. The disclosure includes an inflatable pad having a control pocket formed thereon for receiving a hospital attendant's arm. In use the pad is inserted underneath the patient with the control pocket and attendant's arm being positioned above the inflatable pad and in contact with the patient's body.

Abstract: This disclosure includes a primary-secondary vehicle combination toy having means for first propelling the combination for a predetermined distance after which the secondary vehicle is projected into flight for further travel. The combination is preferably propelled along a surface by a portable spring launch while the secondary vehicle is ejected from the primary vehicle by a mounted propulsion unit. This latter propulsion unit may comprise a spring actuated by a distance measuring unit such as an axle drive shaft which controls release of the spring and ejection of the secondary unit for flight away from the primary unit.

Abstract: A device for cutting lengths of tubing from a longer tube utilizes an external pair of cutting dies and an internal pair of punches. An eccentric relative motion ("shimmy") of the cutting dies results in the desired cutting of the tube. The punches are inserted into the tube from the end of the tube from which the length of tubing is to be cut. A restraining arrangement prevents the punches from moving farther along the tube than is desired, while a punch positioning mechanism prevents movement of the punches toward the open end of the tube. Thus, the internal punches are accurately positioned with respect to the external cutting dies. A centering arrangement is utilized to insure coaxiality of the punches.

Abstract: A door for a mailbox that has an open end to be selectively closed by the door, the mailbox being of the free standing type most frequently encountered in rural areas, is pivotally mounted on the mailbox by an improved hinging arrangement. A solid flat bar is secured to the door by an appropriate fastening arrangement, such as rivets. Transversely extending supporting arms, one at each end of the flat bar, are pivotedly connected to opposite sides of the mailbox by an appropriate mounting structure, such as rivets that are not completely tightened. The supporting arms may be integrally formed with the flat bar, and a transversely extending flange may also be integrally formed with the bar to provide additional strength.

Abstract: This specification discloses an electrically heated container, container jacket and method of making same. The container and jacket each include at least three layers of fiber glass mat having resistance heating elements disposed between the first and second mats and a heat dissipating metallic sheet between second and third mats. The mats are separately impregnated with thermosetting polyester resin and cured together to form a rigid, fluid impervious laminated structure.

Abstract: An adjustable bed allowing the knee portion to automatically rise upon the elevating of the head portion. Alternately, when desired, the knee may remain flat while the head of the bed elevates. The mechanism elevating the knee connects to the structure which effecuates the raising of the head. This mechanism occupies one position when the knee accompanies the head portion in rising and a second position when the knee remains flat. Conveniently, this mechanism consists of a cam connected to the member elevating the head portion. The cam occupies a position where it contacts a cam follower on the knee portion of the bed when the knee rises and a second position where it does not contact the cam follower for the instance where the knee remains flat. These two positions of the cam may have rotational or translational separation from each other.

Abstract: A brace for rigidly locking a casket cap in its open position to positively preclude movement of the cap about its pivotal connection with the casket body in either direction. The brace includes an elongated member pivotally mounted in a support bracket carried by the casket body and transversely displaced from the hinge for the casket cap. This elongated member then extends generally upward through an elongated slot in the casket cap which telescopes outwardly over the member as the cap is pivoted from the closed position to the open position. When the cap reaches the open position, cooperating locking means on the cap and the end of the elongated member engage to lock the cap in the open position. The locking means precludes further pivotal movement of the cap in either direction until the locking means is released. Resilient biasing means maintain the locking engagement and facilitate its release.

Abstract: In order to detect flaws in a material having a cavity, such as a turbine rotor with a central bore, a test apparatus utilizing ultrasonic signals or waves in longitudinal, shear and surface modes, or various combinations thereof, is provided. A source of ultrasonic waves is appropriately mounted for both circumferential and axial sweeps of at least a portion of the bore. Appropriate indexing arrangements are provided to accurately determine the axial and circumferential positions of the source, and hence of any detected flaws.

Abstract: A flaw detecting apparatus is insertable into the bore of a rotor being tested. A chamber is formed by a structure mounted on the rotor in a cantilever fashion. The chamber provides an area in which the test unit may be checked and worked on. Calibration blocks are located in the chamber to calibrate the amplitude and distance signals for both axial and rotational modes of ultrasonic propagation. A motor mount at the outward end is pivoted to provide ready access to the chamber.

Abstract: A portable refrigerating unit has a condenser coil which may be inserted directly into the drying chamber of a freeze drying apparatus. A flexible tube is utilized to convey refrigerant to and from the condenser coil. The flexible tube and the condenser coil are connected through a closure member, which provides a vacuum tight seal for the drying chamber of the freeze drying apparatus. The closure member may be removed from the condenser coil, so that various closure sizes may be utilized and so that the condenser coil may be utilized as an immersible refrigerating device.

Abstract: This specification discloses a coupling between two rotational shafts for transmitting torque. It includes a positive, inelastic, interconnection between the shafts for torque transmission and a resilient element to control, measure or respond to the magnitude of torque transmitted. In another context, the disclosure includes a rotational power shaft having a torque measuring, sensing and responsive unit which provides a direct visual and physical indication of the torque transmitted through the shaft while additionally providing actuating means for controlling associated systems which, in some way, are related to the quantity of transmitted torque.