A Days-of-The-Week Indicating Mechanism for a timepiece wherein a day disc is provided, divided into two portions by a boundary line extending along a substantially spiral path along said day disk, each of said day disk portions being of a different color and being transparent or semitransparent. A radially extending window opening is provided in a calendar window of the dial plate, said boundary line being positioned so that the days of the week are indicated by the position of said boundary li...

A flying printer having a plurality of printing columns disposed and supported between a pair of spaced main plates and having printer-driving means, timing and synchronization means and paper-feeding means disposed outside of said main plates and mounted thereon. The flying printer preferably includes a continuously rotating ratchet wheel having at least one tooth extending therefrom and a print drum rotated in synchronization with said ratchet wheel, both mounted between said main plates. Each...

An electrostrictively driven tuning fork having tines of nonuniform thickness and at least one electrostrictive element fixed to the thicker root portion of said tines.

A battery-carrying means for an electric or electronic timepiece wherein the elastic contact means projecting from the cover providing access to a battery-receiving means in said timepiece are positioned on the cover so as to be out of contact with the projected portion of the battery should said battery be inserted with said projected portion facing said cover. An insulating member or a space is provided between said cover and said projected portion to prevent contact therebetween should said b...

A day-indicating system of a calendar watch including a day dial having the days of the week indicated thereon in at least two forms, the day star wheel secured to said day dial for rotation therewith being adapted for advancement through a plurality of increments during each day, one of said increments being associated with each of said day indications. Means is provided for advancing said day star wheel, each day, a number of increments equal to the number of forms of day indications disposed ...

In brushless direct current motors having pairs of axially spaced permanent magnets radially arranged about and fixed to a rotor shaft, driving coils disposed in the space between said pairs of permanent magnets and detecting means including detecting coils, and a shield ring having cutaway portions in the path of said detecting coil for the operation of each detecting coil when said cutaway portions are aligned therewith for the activation of the driving coil associated with said detecting coil...

An electronic timepiece having a quartz crystal oscillator circuit adapted to be tuned to a reference frequency or a reference frequency minus mHz, where m is an integer and a divider circuit adapted to produce a predetermined timekeeping signal is provided. The divider circuit includes a plurality of divider stages, the number of divider stages determining a division ratio to produce the predetermined low frequency signal in response to the high frequency reference signal. An adjustment circuit...

A liquid crystal display device utilizes birefringent liquid crystals in a twisted mode in combination with a pair of polarizing plates the system being so mounted that the ordinary beam provides the display. The absorption of short-wavelength light is less for the ordinary beam than for the extraordinary beam, resulting in increased life-expectancy of the liquid crystal material, and therefore of the system.

An electronic timepiece having a pulse generator producing a high frequency time standard signal, a divider circuit formed from a plurality of series-connected divider stages for producing low frequency timing signals in response to said time standard signal and a device for digitally displaying time in response to said timing signals, is provided with a correction circuit disposed in said divider circuit. The correction circuit allows a correction signal to be combined with a carry signal from ...

In a motor having a rotor which is a permanent magnet, the rotor is in the form of a cylinder from which portions have been cut forming surfaces symmetrical with respect to the axis of the cylinder. The moment of inertia of the rotor is thereby reduced so that response to a magnetic impulse is more rapid. Further, the plane of magnetism is asymmetric with respect to the plane bisecting the cylindrical surfaces of the rotor, thereby providing for greater thrust under the effect of the yoke and in...