Abstract: A programmed steering and cutting blade control apparatus for self-contained lawn mowers with a nylon tape having rectangular members disposed on the upper and lower surfaces of the nylon tape which extends between two reels where the rectangular members actuate micro switches disposed below the nylon tape and actuate micro switches disposed above the nylon tape where such upper micro switches are connected to a plate which is reversible so as in one instance to reverse the plate and the micro switches are disposed away from the nylon tape and not actuated. Two lower micro switches actuate a turning wheel motor and a third micro switch actuates a brake. The upper micro switch actuates the cutting blades. The movement of the programmed nylon tape is synchronized with the movement of the drive wheels to ensure the self-contained lawn mower moves along the preplanned route.

Abstract: A warming room whose flexible, electric blanket-like wall or walls, floor and ceiling generate surface heat to provide uniform warmth in the area which they enclose. Portions of the warming room comprise one or more warming walls or barriers to increase the temperature of an indoor area and enhance the comfort of its occupants. Using the invention, people lower thermostat settings in portions of rooms, offices or other buildings which are not occupied while they occupy the warmer area within the warming room or adjacent to a warming barrier or enclosure made of warming barriers.

Abstract: Audio-band electromechanical vibration converter characterized in that a yoke having a magnetic pole and a magnetic gap formed therein is displaceably housed by a damper in a casing to which a vibration plate is attached; a coil attached to the casing is placed in said magnetic gap; and the casing gives an output of a mechanical vibration synchronized with a low-band audio-signal.

Abstract: The invention relates to an anti-theft device for a motor vehicle, of the type comprising a bolt restored by a spring to the position for locking an element essential to the motion of the vehicle, a lock comprising a stator and a rotor which is actuated by a coded key and which in the course of its rotation causes the bolt to be drawn back into the unlocked position, in order to prevent the bolt from returning to the locked position as long as the key has not been at least partly extracted from the rotor.According to the invention the safety device consists of a sliding and pivoting lever accommodated in the key channel and interacting with a through-slot provided in the key.

Abstract: A chair backrest having a rigid rectangular base plate and a flexible back support member attached to but movable relative to the base plate, and a spacer between the base plate and the support member, which spacer is movable to adjust the contour of the support member, cooperating locking members being provided on the base plate and spacer to lock the spacer in a number of chosen positions.

Abstract: Faults in an underground coal seam are located by firing a shot at one point in the seam and detecting the seismic reflections in an array of geophones. Signals from the geophones are recompressed and analyzed according to an exponential formula to give a holograph of the seam and to predict the fault pattern.

Abstract: The invention relates to a bi-stable (toggle) mechanism for a vehicle anti-theft device comprising a lever 5 pivotally mounted by a shaft 6, the said lever being subject to the action of a spring 10 and movable from one stable position through a center position to a second stable position.In the mechanism according to the invention, the said spring 10 consists of a hairpin type spring of which one end 9 is connected to one end of the said lever 10 and the other end 11 mounted so as to pivot at a fixed point 12. The distance between the ends 9, 11 of the spring 10 when the lever 5 is in either stable position is greater than the distance between the point 12 of location of the spring 10 and the point of engagement of the spring end 9 with the lever end when the lever 5 is at its center position whereby the spring becomes more compressed as the lever approaches the center position where the lever is unstable.

Abstract: A filter element has a filter medium positioned between concentrically spaced cylindrical walls. A semiflexible, urethane ledge gasket has an annular seal portion that sealingly engages one end of the walls and filter medium and an edge of a generally circular retainer plate that closes one end of the filter element. An annular gripper surface extends inwardly from the seal portion and is spaced axially from the outer surface of the retainer plate so as to provide a finger gripping surface so that the filter element can be removed from its housing. An annular lip extends outwardly from the seal portion to engage an end of the housing.

Abstract: A music box having time-sounding function characterized in that a chime-zone with a row of chiming pins and a time-sounding zone with a row of time-sounding pins are formed on the periphery of a single rotatable drum in its rotating direction, said rows of pins successively fillipping vibrating teeth and thereby playing a chime, followed by time-sounding for a given hour. The number of hours to be struck is automatically selected by a sort of control cam installed parallel to said rotatable drum. The invented device, when coupled with a clock, can for instance chime and then strike once at "one o'clock" or strike two times at "two o'clock".

Abstract: A mold producing one or more globe-shaped bells, each of which is cast as a one-piece shell enclosing a tumbling ball-bearing or jinglet. Production of the one-piece shell is made possible by pouring molten metal over a spherical core, supported by small "feet" inside the globe-like cavity of the mold. When the shell is removed from the mold, the core, in which the ball-bearing or jinglet is embedded, can easily be broken down into particles which fall out holes in the shell's surface.

Abstract: A standing support frame for handicapped persons comprising a platform (10), a column (17) mounted upright on the platform so as to be pivotable to a limited degree in all directions from a mean position, a pair of upright horizontally spaced support arms (40), the arms being joined at their lower ends to the column (17) and at their upper ends to a chest support (70), a knee support (30) mounted to the column, and a buttock support (60) extending between the arms at an appropriate position, means (M) being provided for resiliently urging the column to the mean position.

Abstract: A woven article (1), such as a carpet for a vehicle compartment, is provided with a removable portion (7) to form an opening (8) when some optional component is to be passed therethrough. The opening is partly circumscribed by a plurality of first slits (2a to 2d) which are spaced from each other. At least one second slit (4a to 4d) is further formed outwardly or inwardly of the contour of the opening in an overlapping relationship with two neighboring first slits. Substantially all the warps (5) and wefts (6) extending across the opening intersects with at least one of the slits to provide an uninterrupted opening of desired shape.

Abstract: A knee protector for use in a passenger car equipped with an instrument panel and a steering column installed near the instrument panel, comprises a first and second panels which are separate to each other. The steering column is positioned between the first and second panels. The first and second panels are attached under the instrument panel. A pad covering the first and second panels. The pad has a convex portion to be inserted into a space between the first and second panels.

Abstract: A temperature sensor for mounting on a mast of a helicopter has a heat sensor positioned within a central openining in a radially finned heat exchanger. The heat sensor and heat exchanger are spaced rearward from the mast on a tubular sensor support. Long wires helically coiled within the sensor support connect the sensor and terminals on a bracket soldered to the mounting base. The rearward mounting of the heat sensor and the spacing of the heat exchanger and sensor from the mast on the sensor support and the coiling of a long wire within the sensor support between the sensor and terminals on the base and the filling of the sensor support with polyurethane foam resin ensure that the sensor senses air temperature remote from its base and does not sense temperature of the element on which the base is mounted.

Abstract: A cutting tool (20) is disclosed which includes an integrally secured arcuate cutting blade portion (32). The arcuate blade portion is defined from a loci of a perfect circle and includes an axially elongated arcuate blade portion (38) and an axially recessed arcuate blade portion (40). The axial length of the recessed portion is equal to that of an adjacent planar blade portion (42). This configuration permits the elongated arcuate blade portion to be retained within a first distinct cut of the material to be worked on or bone being cut while the entire tool is rotated to a distinct second position along the upper surface of the material in order to perform a distinct second cut. These two distinct cuts serve to form a removable section (58) of the material being worked upon or bone cut, and in this manner adjacent sections of the material can be repositioned relative to one another once the second cut is performed and the section is removed.

Abstract: An emulsion is stored in pressure containers and is ultimately forced from one container and then the other to a pump which pumps the emulsion against back pressure of the food product into a long Teflon tube of large diameter. The tube passes through cavities in plural microwave ovens and is cured by microwave energy from two magnetrons in each oven operating at about 2,450 megahertz and 1,000 watts each. The flow rate is controlled by the pump so that the food product remains in the microwave energy field for about 4 to 5 minutes whereupon it is fully cured. The continuously flowing food product in the tube is surrounded by a hot oil heat exchanger which heats the surface to about two to five hundred degrees Fahrenheit, while the product is radially constrained and is under back pressure. The tube passes through a cooling heat exchanger immediately after the heater whereupon the surface is cooled to about 40.degree. Fahrenheit while radially constrained and under pressure, thus forming a smooth self-skin.

Abstract: A smoke control device for use in motor vehicle incineration. Smoke from burning vehicles in an incineration area is directed into a collecting chamber by controlled air flows and flaps. Updrafts evacuate the chamber and force the smoke into a combustion stack. The column of smoke in the stack is raised to combustion temperature by heaters mounted on the stack. The superheated smoke is combined with heated air in the vicinity of an open flame causing combustion resulting in a clear stack discharge.

Abstract: A channel marker includes signals which are unique so that the identity of a marker is readily apparent even against background lighting. The signals may include lights, prisms, lenses, luminescent strips and reflectors. The number and disposition of the signals further identify a marker. Photo-voltaic means can recharge batteries.

Abstract: Frame structure for a fork lift truck includes a standardized steering axle assembly provided with a pair of longitudinally spaced pivots, which define a longitudinal swing axis of the axle assembly. The frame structure comprises a rigid rear frame sub-assembly including a horizontal plate member provided on its lower surface with a pair of projections defining recesses for receiving the pivots of the axle assembly. The horizontal plate member is integral with a pair of forwardly projecting mounting plate members whose front end portions are longitudinally adjusted along side surfaces of box section members provided for side panels of the frame structure, and then welded to the box section members. The rear frame sub-assembly is standardized and can be used to manufacture various types of frame structures having different wheel bases.