Abstract: An adjustable wrench particularly suited for use on six-sided fasteners. The wrench has a handle that mounts two adjustable arms that each have a gripping head formed on an end portion that projects from the handle. The handle has a fixed flat surface on its top end located between the two projecting arms. The wrench includes a mechanical arrangement to move the arms into and out of a gripping relationship with the fastener. The arms are positioned with respect to the handle and the flat surface so that the flat surface and gripping surfaces of the gripping heads are in an abutting relationship with the associated fastener sides regardless of its size. This three-sided contact on the fastener results in an equiangular distribution of force exerted upon the fastener.

Abstract: In order to prevent inflammation and irritation of the web of a hand contained in a cast there is provided a smooth surfaced U-shaped member fitting into the web of the hand with one leg traversing the palm and the other leg traversing the back of the hand. The U-shaped member is also provided with anchoring means for engaging the material of the cast and adapted to maintain the U-shaped member and the cast in proper position.

Abstract: The invention is directed to an indexing attachment for a numerically controlled milling machine, comprising an indexing spindle rotatably supported in the casing for receiving a workpiece chuck, a bottom plate for fixing the casing on a worktable, and clamping means for fixing the indexing spindle in the various indexing positions. The indexing attachment is to be of simple and inexpensive structure and intended to permit--without any drive means of its own--programme-controlled indexing operations and thus milling steps along five axes. To this end the indexing spindle (10) of the indexing attachment (8) is adapted to be coupled with a driver (4) mounted on a part (2) of the milling machine and to be driven by programme-controlled motions of the milling machine.

Abstract: Disclosed is an improved sports glove, for use in a game such as racquetball, having a front portion comprised of a strong, substantially inextensible material such as leather, and a rear portion made from a perspiration absorbing material, such as terry cloth. The glove also includes an integral wrist portion which is made of the same perspiration absorbing material as the rear portion, and attached to this wrist portion is a wrist support band which is wrapped around the wrist and secured by a piece of Velcro. Reinforcing pads may be placed on the front portion of the glove in positions particularly susceptible to wear. A very smooth elastic material may also be inserted between the front and rear portions of the fingers so as to provide the fingers with greater freedom of movement. This very smooth elastic material should be of a size smaller than the rear finger portions and larger than the front finger portions so as to impart a natural curvature to the glove fingers.

Abstract: In a projection table of an optical projection form grinding machine, with a transparent carrier for a form pattern drawing, which bears insertion marks, and with a transparent cover, which can be moved between an open position, in which the carrier is accessible for insertion of the form pattern drawing, and a closed position, in which the cover lies flush on the form pattern drawing and fixes it in position on the carrier, in order on the one hand to eliminate disturbing reflections, and on the other hand to obtain good visibility of the insertion marks during insertion, it is proposed that the cover be made nonreflecting or reflection-reducing, but displaying transparent regions, not made nonreflecting or reflection-reducing, above the insertion marks of the form pattern drawing.

Abstract: An apparatus and method for showing motion in a single color photograph in which motion of an object is shown by displaced images of the object in different colors. The scene to be photographed is illuminated by a light source including a plurality of light units emitting light of differing spectral composition. The light units are individually and sequentially activated, the light emitted from all of the units appearing to be emitted from substantially the same location. The flashing of the light units is controlled by a timer. The resulting photograph shows the non-moving objects in a color which is the composite of the spectral composition of all of the light units, typically the natural color. The movement of an object is shown by a spaced series of sharp images of that object in a variety of colors. The color sequence corresponds to the sequence of the flashes of the light units.

Abstract: The wavelength division multiplexer/demultiplexer includes a gradient index of refraction (GRIN) lens and a diffraction grating located adjacent to one end of the GRIN lens. The diffraction grating is adapted for switching from a first angle to a second angle with respect to the GRIN lens. For both path and terminal equipment redundancy, first and second input optical fibers are located at first and second input locations on an end surface of the GRIN lens. A first and a second plurality of output optical fibers are also located on this end surface of the GRIN lens. The input and output optical fibers are located so that optical energy will travel from the first input optical fiber to the first plurality of output optical fibers when the diffraction grating is oriented at the first angle and optical energy will travel from the second input optical fiber to the second plurality of output optical fibers when the diffraction grating is oriented at the second angle.

Abstract: A wall-mounted agitator for particulate material having an agitator panel within a gravity conveying wall for the material and a frame with a vibrator external to the wall and attached to the panel by means of resilient mounts. The mounts each include annular flange means for attachment to an aperture in the wall and an elastic annulus of sleeve-like form. The annulus extends from the flange means to the panel and frame, respectively, in opposite directions.

Abstract: An inverting apparatus for reorienting electrically asymmetrical axial lead electronic devices in a testing and sorting machine has a wheel rotatably mounted in a magnetic output bin of the tester/sorter. The bin has sets of permanent magnets mounted in its side walls that create two oppositely directed magnetic fields that define upper and lower regions of the output bin. The axis of rotation of the wheel is generally aligned with the magnetic fields across the bin. The wheel carries a set of holder assemblies each mounted for free rotation on its outer circumference. Each holder assembly carries a bar magnet that aligns the holder assembly, and a device carried in the holder assembly, with the prevailing magnetic field. As the wheel rotates the holder assemblies and the devices they carry are transported from the magnetic field in the upper region to the oppositely directed field in the lower region. The bar magnet rotates the holder assembly and the device 180.degree.

Abstract: Individual cells defined by metallic housing elements which at the same time serve as leads or pole plates (1, 2), have a narrow annular insulating body (3) which is arranged in the edge zone of the housing elements and holds the pole plates (1, 2) at a mutual distance. To obtain a stable cell assembly with precisely defined and reproduceable dimensions, an insulating body (3) is proposed which consists of a metal core (4) and an electrically insulating oxide-ceramic layer, formed thereon, as the potential insulation. The insulating body (3) is irreleasably joined to the pole plates (1, 2) by means of a connecting layer (8) which is resistant to chemicals.

Abstract: Tissue retractor particularly adapted for use during arthroscopic surgery on the knee joint. This surgical instrument includes a rigid elongate member with a sharpened end adapted for insertion through skin into meniscal tissue within the knee joint. The elongate member includes a retractable, laterally projecting barb near the sharpened end for seating within the tissue. In one embodiment, a tensioning device is provided so that parts of torn meniscal tissue can be pulled together to permit healing.

Abstract: An electromechanical magnetic transducer with a moving armature having (1) substantially pure translational adjustability, or (2) adjustability characterized by a substantially definite pre-chosen ratio of rotation to translation. The armature comprises an armature leg and an armature support yoke having plastically deformable yoke arms. A yoke arm comprises a pair of struts that are mutually inclined to provide a toggle-like action upon application of an adjusting force, such action opposing or enhancing the tendency of the support of the armature leg to rotate.

Abstract: In the resist baking apparatus disclosed herein, heating of the wafer is effected by direct contact with a thin disc-like heating plate whose heat capacity is not greatly disparate from that of the wafer. The heating plate is initially brought to a temperature higher than that which is to be applied to the resist but the corresponding cooling of the plate as the wafer is initially heated prevents damaging temperatures from reaching the resist. The heater plate is perforate and air pressure is utilized to support a wafer over the heater plate before heating is to begin and also to later lift the wafer and thereby sharply define the end of heating. During baking, a vacuum is applied through these same perforations to clamp the wafer tightly against the heating plate for tight thermal coupling.

Abstract: A weighing system includes a weighing pan connected to a rigid armature by a mechanical filter constraining the armature to motion along a reference axis with respect to a housing and damping out transient forces along this axis resulting from the placement of objects on the pan. The mechanical filter includes spring and damping elements that provide a low-pass filter, that is, one that efficiently and quickly eliminates high frequency oscillations. In one form, the mechanical filter couples the pan to the armature. Because of this connection, friction in the mechanical filter does not result in frictional errors in the weighing measurement. In another form, a mechanical linkage couples the armature to the housing. A force transducer, comprising a pair of complementary opposed surfaces having a mutual separation which is related to the force across the transducer, is coupled between the armature and the housing.

Abstract: A method is given for manufacturing a hen-egg albumen substitute, with which a dried protein is dry-mixed with a salt mixture having the following composition:______________________________________ Monocalcium phosphate 47.3-33.9% by weight Calcium hydroxide 38.7-26.1% by weight Calcium chloride 6.0-20.0% by weight Calcium stearate 3.0-20.0% by weight Xanthane 3.0-20.0% by weight ______________________________________wherein the weight ratio of monocalcium phosphate to calcium hydroxide is between 1.0:1 and 1.3:1.

Abstract: A system for detecting P waves samples a cardiac signal during first and second time periods set by a clock signal. Comparators determine whether the signal increases in voltage during the time periods by a predetermined value, testing whether the slew rate of the signal falls within a range corresponding to the slew rate of a P wave. Latches responsive to the comparators provide input to a logic circuit whose output clocks a counter. Three successive positive samples input into the counter will cause the counter to generate a signal indicating a P wave has been detected.

Abstract: A polymer filtration system comprises plural passages each having therein a filter selectively removable for cleaning and replacement. A single valve controls the closing off of the passages from an inlet to the filters, and check valves in each of the passages downstream of the filters prevent backflow. By adapting the system to permit simultaneous flow in plural passages between filter changes, the filters may be changed in staggered sequence at intervals chosen to attain optimum system performance.

Abstract: Woodburning heating apparatus including a catalytic igniter for increasing heating efficiency and reducing polluting emissions. The apparatus includes a secondary combustion chamber in gaseous communication with a primary combusiton chamber. The secondary combustion chamber is lined with a refractory material and includes a perforate catalytic igniter through which combustion gases from the primary combustion chamber flow. The secondary combustion chamber further includes refractory baffles arranged to enhance mixing of the combustion gases and located to re-radiate heat onto the catalytic igniter. Preheated secondary combustion air enters the secondary combustion chamber so that the combustion gases are more completely burned to improve heating efficiency and reduce emissions.