The universal shoulder rest or shoulder rest appliance is for bowed string musical instruments such as violins and violas. The appliance includes a unitary structure mounted on the back of the instrument box and having an elongated arm and a plate connected to the base of the arm. The plate extends beneath the arm and diverges therefrom throughout its length. The base, located at one end of the arm, is provided with a groove and the other end of the arm is provided with a foot having a groove. T...

A broadband, radar-type system for resolving the sizes and centroid locations of objects buried at a maximum depth in the order of 6 to 10 feet is disclosed. The system uses a carrier frequency which is high enough so that an instantaneous bandwidth of about 25 percent provides resolution in the order of 1 foot. The system antenna includes impedance matching and focusing means. Polarization diversity of the transmitted beam may be accomplished to distinguish between elongated and generally round...

Animal immobilization apparatus accommodates a typically encountered range of herd animal sizes to permit an unassisted operator to perform various animal treatments such as castration, innoculations, surgery, tatooing, and the like. The apparatus is especially useful to an unassisted operator whose task is to quickly humanely castrate the various sizes of pigs in his herd. Each successively encountered herd animal is placed supinely within the apparatus cradle that is frontally equipped with a ...

A camera and film are adapted to provide an increased number of exposures of selectable sizes. A plurality of fixed aperture internal masks provide selected image frame sizes and permit exposures along two separate rows across the width of the film. The paper film leader and spools are symmetrical to permit reversal of a roll of film after completing the first row of exposures. The roll is then reinserted for successive winding of the second row from the opposite end. External viewing masks of d...

An ornamental finger ring which can readily be adjusted to fit a variety of finger sizes. The ring is formed from an elongate shank having a pair of ends, into a circular configuration. The ends are positioned proximate each other, and at least one of them is formed with an ornamental member thereon. A flexible insert is embedded in a portion of the shank, and at least one gap or spacing is provided in the shank so that it surrounds the insert and divides the shank into at least two segments.

A combination adjustable bracket and filter casing for suspension within aquarium tanks of different sizes. The bracket comprises upper and lower sections which are permanently connected when in assembled relation. The rear of the casing has a pair of channel elements and therebetween a wedge lock element, the bracket having a plurality of laterally opposite pairs of slide sections with bottom stops, said slide sections being slidably interengageable with said pair of channel elements, the casin...

Apparatus for reading and reproducing microphotographs of varying sizes including a source of light and a condenser assembly both adjustable in accordance with the size of microphotographs to be projected, a shutter mirror for selectively supplying light from the microphotograph to a viewing screen or an exposure plane, and a cam controlled electrophotographic reproduction system for automatically producing uniform copies of microphotographs of varying sizes.

A device for temporarily holding articles of different sizes has a receiving surface with apertures therein connected by passages to a source of suction, means being provided for reducing the suction to those apertures which are not covered or insufficiently covered by the article to be held.

In a magnetic tape cassette storage and magnetic tape cassette record/reproduce system, disclosed is an accessor which inserts or extracts a cassette from a storage location or a record/reproduce device. The accessor includes a cassette gripper assembly which handles different sizes of cassettes. Lateral motion of the accessor (a) actuates the gripper assembly to grip and ungrip a cassette and (b) effects locking and unlocking of the gripper assembly. A pair of accessors are mounted on an access...

The invention concerns a process and an apparatus for separating powdery materials shaped as balls or pellets. It is characterized by the use of a vibrating screw elevator (4) subjected to vibrations of an amplitude so selected as to produce on the screw turns (5), an upward flow of the particles to be removed, while maintaining a downward flow of the particles to be recovered. The invention provides in particular for the separation of round balls from broken balls.