The present invention is directed to a fisherman's apron and more particularly to a fisherman's fly tying apron which includes an upper section including means for attaching said fly tying apron to a user, a lower section detachable from the upper section, a waste collecting means associated with the lower section, and a stiffening means associated with either the lower section or the waste collecting means. The apron of the present invention permits the fly tier to have easy access to fly tying...

The snuffer is constructed of three elements, i.e. a tubular member, a sleeve which fits within the tubular member and a cap which secures the sleeve in place. The sleeve has an inside diameter to slidably receive a lighted cigarette or the like. The cap has a bore through which a cigarette is to be inserted into the sleeve and from which an end of the cigarette is able to project for ease of removal for re-use. Multiple sleeves are provided to accommodate differently sized cigarettes or tobacco...

A device for hiding information in a text comprises a mechanicanism for providing the text, means for linguistically analyzing the text to produce text components, for determining a plurality of formulation alternatives for the text by varying the order of the text components and, optionally, in addition by using synonyms for text components, determining every formulation alternative is grammatically correct for the text and has essentially the same meaning as the text. Certain partial informati...

A method and system for transferring information between a moving vehicle and a stationary information location having a vehicle detector system with a loop antenna by using the loop antenna as either the receiving antenna for signals transmitted from a moving vehicle or as the transmitting antenna for signals generated by a transmitter located at the vehicle detector site for transfer to a receiver mounted on a moving vehicle. The information is encoded on a carrier having a frequency outside t...

The pedestrian traffic control system of this invention utilizes an endless belt to successively display visible painted WALK, DONT START, and DONT WALK signs in a window of a display unit. The control unit may be employed with an ordinary three-state power system of the type that now operates flashing neon signs, but has the advantage that electric power operates the signs only when a sign is being moved into display position. Three distinct WALK, DONT START, and DONT WALK signs are used thereb...

A monitoring system is provided for use in conjunction with a wire loop which is embedded in a roadway, and which senses the presence of vehicles in the roadway to control a traffic signal. The monitoring system senses the output of the loop oscillator which is included in the traffic control circuitry and which generates a loop signal and whose frequency-determining circuit includes the wire loop to indicate immediately any failure in the loop circuit. If for any reason the loop oscillator fail...

A vehicle barrier is formed with a barrier gate mounted on a pair of opposing lift arms pivotally connected via pivot shafts to a support structure. A plurality of endless bands are looped around the opposing pivot shafts and positioned to pass through compartments in the barrier gate. The lift arms and the barrier gate may be fabricated from lightweight material, such as thin steel, aluminum or plastic, so that the stopping power of the vehicle barrier is provided by the anchored bands. In perm...

A digital vehicle detection system is provided which responds to changes in the inductance of a wire loop embedded in the roadway to sense the presence of a vehicle. The loop and associated lead-in connections are used as the frequency-determining network of a Class-C oscillator, and digital circuitry is used to measure the frequency of the oscillator. An automatic tuning circuit is included which generates a reference time frame for the frequency measurement, and vehicle detection is sensed whe...

An improved magnetic inductance vehicle detection system is provided which responds to changes in the inductance of a wire loop embedded in the roadway to sense the presence of a vehicle. The system includes a first oscillator connected to the loop whose frequency changes as the loop inductance changes, and it also includes a second oscillator whose frequency is independent of the loop inductance, and which is used as a reference. Appropriate logic circuitry establishes an output signal whenever...

A high resolution digital test instrument is provided which has particular, although not exclusive, utility in testing the inductance and inductance changes of wire loops which are embedded in roadways and which are incorporated into vehicle presence sensing systems. The test instrument provides a simple means for determining the sensitivity of the loop to vehicles of different sizes; as well as for determining whether the loop inductance is susceptible to drift, whether open circuit or short ci...