Abstract: The invention concerns the use of relaxin or another compound capable of specific binding of a relaxin receptor in the heart in the cardiovascular therapy, and specifically in the treatment of acute and chronic heart failure or of a condition characterized by pathologically low heart rate. The invention further concerns the treatment of neurodegenerative diseases using relaxin or other compounds capable of selectively binding a relaxin receptor in the brain.

Abstract: An oven module for use in industrial baking applications is disclosed having apparatus for accommodating the longitudinal thermal expansion in the interior walls of the oven module located intermediate the ends of the module. The oven module is easily assembled into an oven baking line because its ends are fixed and do not vary due to thermal expansion. Therefore, the present oven module alleviates numerous disadvantages in the shipping and assembly of an oven baking line which has been experienced with prior known oven modules. The floor, walls and roof of the oven module have both an interior and an exterior structure so that the interior surfaces of the oven module can be independently and rigidly supported. At opposite ends of the module, the interior and exterior structures for the floor, walls and roof are fixed to a common support member.

Abstract: A braking system for a powered rotary tool of the type in which a shaft is rotated about an axis by a motor includes a first brake element mounted for rotation with the shaft; a second brake element which is restrained from rotation; a biasing member normally urging the first brake element in an axial direction into braking contact with the second brake element and a brake release subsystem, the brake release subsystem to release the braking contact between the first and second brake elements upon start-up of the motor. On start-up of the motor, the shaft is free to rotate through a small angle of rotation before initiating rotation of the first brake element. The release subsystem includes at lease one pair of co-operating ramp surfaces, one of the ramp surfaces being arranged for rotation with the shaft and the other of the ramp surfaces being arranged for rotation with the first brake element. The braking system of the present invention is particularly suitable for use on a rotary-blade lawn mower.

Abstract: A lawn mower of the type which collects grass cuttings includes a motor-driven blade rotatable about a sustantially vertical axis, at least one fan rotatable about the same axis, and a grass collecting system of the type in which grass collection is aided by suction from an airstream produced by the fan. It includes a closure which is selectively adjustable to at least two positions: one in which a grass collection aperture in a grass box is closed and a debris collection aperture in the grass box is open, and the other in which the grass collection aperture is open and the debris collection aperture is closed. A second embodiment includes a closure which is selectively adjustable to at least two positions: one in which both the grass collection aperture and the debris collection aperture are open, and the other in which only the grass collection aperture is open.

Abstract: A braking system for a rotary mower includes a brake element which is secured to an impeller and is urged by a spring normally into braking engagement with a fixed brake friction member. On start-up of a motor of the mower, rotation of the impeller causes axial movement of the brake element against the spring and out of braking engagement. Movement of the brake element may be assisted by mechanical means, for example by a multiple ball and ramp system or arrangement. In this embodiment, four equally spaced balls are normally located in ramped recesses formed in an upper face of an adaptor element, such that on start-up of the motor, the balls ramp up at least partially out of the recesses, and assist in urging a braking element and a friction element out of braking engagement with one another. This assist stops when the motor is turned off, the balls now moving back into their respective lowest positions in the recesses formed in the upper face of the adaptor element.

Abstract: A dynamic memory cell with automatic refreshing is described which requires only three insulated gate field effect transistors (IGFETs). Binary datum is stored in the cell by maintaining the gate of the first IGFET high for a one and low for a zero. The second IFGET is used for cell selection in the read and write operations, and is in series with the first transistor. The third IGFET has one gate electrode, but the channel region of this transistor has two regions, and the surface potential vs. gate voltage characteristics of these two regions differ. Regardless of the datum stored in the cell, pulsing the gate of this third transistor refreshes the memory cell.

Abstract: A high strength creep resistant titanium alloy comprising titanium, 6% aluminium, 5% zirconium, 0.5% molybdenum, 0.25% silicon is disclosed in a particular heat-treated condition. The alloy is particularly useful for engine components.

Abstract: A semiconductor random access memory is described in which the datum stored in one memory cell can be recalled without having to recall, temporarily store, and then re-enter the data stored in a column of memory cells. Datum can also be entered into one memory cell without having to recall and subsequently re-enter the data in a column of memory cells. During the recall and enter processes, only one of the normally off sense amps needs to be powered up. Compared to prior art one-transistor memories, this memory consumes less power and has a faster write cycle.

Abstract: A pointing error compensating device for compensating the error induced in a position indicator as a result of forces acting on a structure, such as gravitational forces acting on a large antenna having a reflecting dish, that is pivotal about an elevation axis.The error compensating device comprises a torque producing device having a moment arm in the form of an eccentric mass attached to a shaft coupled to the structure, the shaft being rotatable in response to a pivotal movement of the structure. The shaft is also coupled to a drive shaft of the position indicator. The eccentric mass is attached to the transmission shaft in such a manner that it applies a torque to the latter which is proportional to the cosine of the angular orientation of the structure about the elevation axis. The transmission shaft is deflected torsionally by the eccentric mass in an amount which is designed to be approximately equal and opposite to the error which otherwise would be induced into the position indicator.

Abstract: A dynamic semiconductor memory cell which can be used in content addressable or associative memories is described. In the memory cell, a one is represented by storing a relatively large number of minority carriers in the potential well formed in a semiconducting substrate beneath a first storage electrode, and a zero is represented by storing a relatively large number of minority carriers in the potential well formed in a semiconducting substrate beneath a second storage electrode. The match zero operation is performed by extracting some of any of the minority carriers stored beneath the first storage electrode, which induces a relatively small potential change on that electrode if a zero is stored in the memory cell and induces a relatively large potential change on that electrode if a one is stored therein. Similarly, the match one operation is performed by interrogating the minority carriers stored in the potential well beneath the second storage electrode.

Abstract: An electrical switchboard cabinet incorporates isolated, vertically and horizontally extending wiring passageways for accommodating the routing of control wires between electrical devices in one switchboard vertical section, between electrical devices in different switchboard sections, and between switchboard devices and switchboard terminal locations where electrical connections to remote control locations are effected.