A unit for converting a bottle or similar receptacle having a neck into a lamp, said unit mounted around the outside of the bottle neck. The basic portion of the unit consists of an inverted cup whose inside diameter exceeds the outside diameter of the bottle neck. The cup carries at least three threaded engaging screws at its lower end. The lower end of a conventional lamp pipe carrying a lamp socket at its upper end, is threaded into the upper central portion of the inverted cup. A self-lockin...

A loudspeaker comprises a frame, a cone assembly which includes a cone body having an outer periphery spaced away from the frame, and a flexible annular surround connecting the periphery of the cone body to the frame. The surround has an inner peripheral flange secured to the outer periphery of the cone body, an outer peripheral flange secured to the frame, and an arched web between the two flanges and spanning the gap between the cone body and the frame. The radial cross-section of the arched w...

A rocking footpedal mechanism for driving a tambourine or similar percussion instrument in fore-and-aft oscillation about a pivotal arrangement below the tambourine, the pivotal arrangement and the tambourine-holding shank are so located at one end of the footpedal as to cause the tambourine to strike the leg above a musician's foot operating the footpedal, simulating conventional hand-striking of the tambourine, while leaving the musician's hands free; double action provides positive control of...

An automatic night light which will change its illumination in response to changes in the ambient light level. The circuit comprises an AC input with the lamp and a solid-state switch connected in series, a resistive voltage divider being connected across the solid-state switch and having series-connected fixed and light-sensitive resistors. The switch gate is connected to the voltage divider tap by a bidirectional conductor. The structure comprises a housing having circuit and lamp portions. Th...

Optical metronomes with a spot or column of light shining through the sheet of music simultaneously in all staves or alternatively in all measures utilizing individual lamps, fiber optics, or lamps located in reflecting channels. Lights illuminate successively and are controlled by motor-driven perforated shields, contact arms, or an oscillator and gating circuitry.

A speaker enclosure for a stereophonic sound system is disclosed. The speaker is mounted in a chamber, the enclosure of which is connected to a tube of relatively long length and of circular cross-section. The construction is such that phase-inversion occurs so that the sound emanating from the rear of the speaker reinforces sound from the front of the speaker. The construction also substantially suppresses standing waves.

An integrally formed cabinet for a loudspeaker having a preformed horn for dispersing acoustic energy with minimum distortion.

Tuned reed-type sound producers are mounted in different parts of a figure toy and are identified by indicia so that different tones may be produced in a predetermined sequence by depressing the indicia. The sound producers may produce musical notes, vowels or the like.

A compact, versatile voting machine is disclosed having adaptability for use with various vote registering devices such as tally counters and punch card apparatus. The voting machine includes a selector mechanism having a series of parallel columns housing voter operated key slides. A vertical interlock mechanism includes ball housing blocks which are alternately disposed between the key slides and house displaceable interlock balls in a tool line. The cam blocks are adjustable to limit the effe...

A cabinet for improving the sound output of an amplifier including an upright housing having a horizontal partition dividing the interior of the housing into an upper portion and a lower portion, a speaker mounted in the horizontal partition and oriented for directing sound into the upper portion of the housing, a reflective sounding board positioned within the upper portion of the housing inclined at an angle relative to the horizontal partition, the sounding board being inclined from the lower...