An educational device to facilitate learning how to tell time. The device includes a base shaped like the face of a clock and a plurality of pieces representing various lengths of time which are received in a recessed portion of the base. Also included are minute and hour hands and a peg to hold the hands to the base.

A data recorder for use in processing cards and the like comprises a housing which has mounted therein electronic control system incorporating both firmware and software programs. A thermal printer and optical reading device are mounted in the housing for printing information onto the card and reading information on the card respectively. The data recorder may be used as a clocking-on device and special cards provided for changing at least one of the software programs of the electronic control s...

Improvements in time locks for use in safes, vaults, or the like wherein the lock includes a clockwork mechanism which can be preset to a time until which the safe or vault cannot be opened. The improvements include improved means for bypassing the clockwork mechanism should one be locked inside the safe or vault on which the lock is installed. An improved simplified housing is provided for the time lock so that the entire lock need not be disassembled if there is a malfunction of the clockwork ...

A time switch (100) comprises terminals (110) spaced around a slip ring (108) connected to a voltage source (V). A motor (104) drives a brush (102) to sequentially connect the terminals (110) to the slip ring (108) to energize the terminals in sequence. Each terminal (110)--as shown for one of them designated 112--is connected via a respective transistor (116) and manually operable switch (124) to a pair of common output conductors or bus-bars (130, 132), whereby for each successive period of ti...

A time piece comprising a cylindrical casing formed of transparent material which is closed at its bottom end by a bottom cover on which is mounted a clock movement whose output spindles are drivingly connected by plates to respective drum-like members provided on their outer peripheries with indicia, representing time, the drum-like members being concentrically arranged so that their indicia can be viewed through a window provided on a sleeve mounted on the casing, the inner side of the sleeve ...

A time switch turns on and off electric equipment connected to the switch. An on time at which the electric equipment is turned on and an off time at which the equipment is turned off are set through a time setting unit. Both the on time and the off time are displayed on a display unit.

A time indicator is provided which includes a first substrate having first and second surfaces and at least two indicia areas on the first surface. A second substrate having first and second surfaces is also provided. A first chemical agent is provided on each of the indicia areas and a second chemical agent is provided on the first surface of the second substrate. The first surfaces of each substrate overlay and are in contact with each other, the chemical agents coacting to cause a visually pe...

A time apparatus is disclosed which enables autocycle riders, marathon athletes, jogging runners, skiers etc. to see or check time only by the pushing motion of the thumb of the hand which wears the apparatus, without the need of the other hand.

A vernier system for digitally measuring elapsed time between a start and stop pulse against a system clock reference where the start pulse is synchronized with the clock. Fractional parts of the clock pulse at stop time are interpolated by means of a tapped delay line connected to a plurality of latch circuits which provide the least significant bits by way of a read-only-memory look-up table.

Time-release pharmaceutical compositions, suitable for oral administration, are disclosed, which comprise as active ingredient 50 to 70% by weight of a compound of the formula (I) ##STR1## or the formula (Ia) ##STR2## wherein R is hydrogen or --CH.sub.2 COOH, R.sup.1 is hydrogen or alkyl having 1 to 4 carbon atoms, R.sup.2 is alkyl having 1 to 4 carbon atoms, alkoxycarbonyl having 2 to 5 carbon atoms, carbamoly or ureido, R.sup.3 is hydrogen or methyl, and the dotted line stands for two hydrogen...