Abstract: A seat height adjustment mechanism comprises a seat base frame mounted on a supporting fixture by means of front and rear sets of levers to enable the vertical height of the front and rear ends of the seat base to be adjusted relative to the fixture. Angular adjustment of the front and rear levers is effected by means of respective gear sets at opposite sides of the seat. The gear set associated with the front end of the seat base can be operated directly by the seat occupant and the two gear sets are linked by a selectively operable clutch device so that the rear end gear set can be operated simultaneously with the front end gear set if the clutch is in the operative condition. In this way, the seat is raised or lowered bodily at both ends. When the clutch is inoperative, the rear end gear set is not operated and only the front end of the seat is then raised or lowered.

Abstract: A cutting scissors particularly for cutting yarns, having cutting edges provided on rigid scissors blades, whereby the cutting edge or edges respectively is (are) set in a connecting frame secured to the relative scissors blade at the side thereof remote from the other scissors blade, the setting portion for the blade edge bending around the rim of the scissors blade and being connected through a narrowed flexible transition portion to the securing portion of the frame.

Abstract: A web is reciprocated through a treatment roll pair so that a succession of treated areas is formed on the web, one of said areas being formed on each forward movement, and the reverse movements serving to enable re-positioning of the web and avoiding waste between each two said areas. Two pairs of feed rolls are provided, one pair for forward feed and one pair for reverse feed. Each feed roll pair is engageable with and releasable from the web by having separable rolls. The feed rolls are all driven from a common camshaft.

Abstract: Apparatus for die-cutting preprinted web has an adjustable web feed mechanism which is controlled by circuitry for detecting mis-registration between die-cutting and the preprinted portions of the web, of which the following is a specification.

Abstract: An electrical string-instrument having a plurality of strings, a support member stretching the strings, electromechanical transducers respectively corresponding to the strings, a plurality of gate means for gating the outputs from the electromechanical transducers or signals based thereon, and gate signal generating means.

Abstract: A pneumatic weaving machine includes an air fed weft inserting main blowing nozzle cooperating with a device arranged upstream of its inlet and adapted to intermittently interrupt the inserting motion of the weft yarn effected by the nozzle. At least one auxiliary blowing nozzle is arranged in series between the outlet of the main blowing nozzle and the adjacent end of the weaving shed of the machine, there being a free space between the outlet end of the main blowing nozzle and the inlet end of the auxiliary nozzle, through which the air stream from the main blowing nozzle laterally escapes.

Abstract: A device for forming a supply bobbin from a thread advanced from a yarn supply includes a stationary winding drum having a winding space around the drum and defining an internal chamber and a slit connecting the winding space and the chamber. A rotatably mounted thread guide means for winding yarn on the winding space of the drum is included and a plurality of pins rotatably mounted within the chamber of the winding drum are provided for movement in an axial plane with respect to the winding drum through the slit one after the other. The pins successively exit and enter the chamber of the winding drum through the slit. Means are provided for so driving the pins continuously in a fixed transmission ratio with respect to the thread guide means that the pins exit from the chamber after a predetermined plurality of yarn windings have been formed on the winding space of the drum. The pins separate successive series of yarn windings by each momentarily forming a barrier for yarn windings.

Abstract: An adjustable reclining mechanism for a vehicle seat is combined with a linkage which translates folding of the backrest into forward or rearward movement of the seat, the reclining mechanism including a rectilinearly displaceable toothed member co-operable with a pawl to hold the seat base and the backrest in selected positions of adjustment, of which the following is a specification.

Abstract: A refining vat for the separation of wort from spent grain comprises a sieve base and an impervious discharge base which lies below the sieve base and surrounds a central drain outlet. An intermediate base is substantially concentric with and is smaller in diameter than the sieve base, and is disposed between the sieve base and the discharge base and acts as an accumulator and guide element for the wort.

Abstract: Fine solid material is preheated in a first zone, then heated to the final treatment temperature by passing it through a flame in a second zone, and then separated in a third zone from the hot exhaust gases leaving the second zone. The separated exhaust gases are led to the first zone for preheating the material. A fuel feed stock is gasified to produce a combustible gas, and such gas is burned in the second zone to produce said flame.

Abstract: A weaving machine of the type in which weft insertion is effected by a fluid flow and in which a plurality of notched blades arranged closely adjacent each other in front of the reed confine a guide passage for the weft threads, said guide passage being laterally open towards the reed and being adapted to move into and out of the shed in synchronism with the reciprocation of the reed, wherein each guide passage forming blade comprises at least two spaced thin blades which are mutually connected at least at the ends at which they enter and leave the weaving shed during the reed movement.

Abstract: An impedance element is disclosed which is formed with an electro-elastic surface wave transducing device composed of a substrate for the propagation of an elastic surface wave and an electro-elastic surface wave transducer disposed on the substrate for converting an electrical signal into an elastic surface wave or vice versa. The impedance element has a frequency-impedance characteristic that it exhibits a sufficiently high impedance in a predetermined frequency band but a sufficiently low impedance in the other frequency bands.Further, a band-rejection filter is disclosed which includes the abovesaid impedance element and has a band-rejection filter characteristic dependent upon the frequency-impedance characteristic of the impedance element.

Abstract: A rectangular waveform signal reproducing circuit for electronic musical instruments which is composed of a first charge-discharge circuit having a relatively small charge time constant and a relatively large discharge time constant for charging and discharging positive components of a monophonic signal, a second charge-discharge circuit having a relatively small charge time constant and a relatively large discharge time constant for charging and discharging negative components of the monophonic signal, first comparing means for comparing the monophonic signal with the output from the first charge-discharge ciruit to produce a first compared output representing that the level of the former is larger than that of the latter in the positive direction, second comparing means for comparing the monophonic signal with the output from the second charge-discharge circuit to produce a second compared output representing that the level of the former is larger than that of the latter in the negative direction, and a fli

Abstract: A proximity device comprises a pair of connected magnets that are movable with respect to a magnetizable member located intermediate the magnets and secured in a housing. The magnets are arranged to provide a high rate of change of force between the magnets and the member as the magnets are moved by the approach or retreat of a magnetizable operator to or from an area adjacent one of the magnets and remote from the magnetizable member between the magnets.

Abstract: The invention provides a miniature hinge for jewelry and the like, made from metal pressings, by making each leaf of the hinge from two laminations of which one provides the hinge knuckle and the other forms a limit stop.

Abstract: This invention is concerned with light transmitting screens which can be used in printing of half-tone illustrations such as photographs and in color television. The screen is formed on one face with a plurality of projections or depressions which so adjoin one another that the face is free of interstices, light incident on the contoured surface so formed being refracted as it passes through the screen to break up the image being transmitted into a pattern of dots. For use in color television, the projections or depressions are defined as triangular pyramids whose surfaces are subtended from their bases at different angles to be in sympathy with the wavelengths of the different colors being transmitted.

Abstract: A weaving loom of the type in which the back beam is mounted for carrying out a limited translational movement for compensating the variations in tension in the warp threads passing over it, which variations are caused by the periodic changes of the shed. An auxiliary guide for a plurality of warp edge threads is provided at at least one end of the back beam, said guide being mounted to carry out a translational movement, independently of the back beam, under the influence of an adjustable load imparted to it.

Abstract: A component for use in interconnecting the front and side walls of a drawer in which the walls are formed from hollow extruded plastic panels, the component comprising a corner post having locating members projecting in two directions at right angles to one another, and detents on the locating members for engagement in apertures in the wall panels, the detents on the locating members which engage the front wall panel being formed on the inner faces of the members.

Abstract: An apparatus for removing organic solvents from textile material with steam comprises a treatment chamber having a steam inlet at its upper end and a condenser at its lower end.

Abstract: A magnetic video recording and reproducing apparatus is disclosed which is provided with a magazine loading section disposed on the main surface of a main chassis of the apparatus, a rotary magnetic head assembly composed of a cylindrical magnetic tape guide surface and a rotary magnetic head and disposed on the main surface of the main chassis, a magazine loading device for loading a magazine formed with a casing containing a magnetic tape onto the magazine loading section and unloading the magazine therefrom, and magnetic tape threading means for drawing out the magnetic tape from the magazine loaded on the magazine loading section to thread it on the magnetic tape guide surface of the rotary magnetic head assembly.