Abstract: A parking violation recording system capable of recording violations based on the location of a violating vehicle, is provided. The system includes at least one camera located on a mass transit vehicle, oriented so that it is capable of viewing a violating vehicle and recording an image containing violating vehicle information of the violating vehicle; at least one locator provided on said mass transit vehicle and capable of providing data for determining the geographic position of the mass transit vehicle; and a data processing sub-system, coupled to the at least on camera and the at least one locator for recording both the violating vehicle information and the geographic data in a violation data record. In another aspect, the invention is directed to a method of enforcing bus zone regulations.

Abstract: According to the present disclosure, a digital vehicle microphone system for recording and playback of announcements pertaining to vehicle stops and route information is provided for use over public address systems installed on public transportation vehicles. The system includes a microphone apparatus for digitally pre-recording the announcements. The microphone apparatus includes a microphone, a mute switch, a radio mode switch, a record switch and a record indicator. The system also includes a control circuit for recording and storing at least two separate announcements onto memory storage devices. The control circuit further includes a delayed playback feature for delayed playback of the announcements through the vehicle's public address system. The microphone apparatus further includes a “hands free” microphone including hand and foot actuated recording switches.

Abstract: An automatic audio message delivery device is associated with the operation of an automatic door at a retail establishment. Data communications are provided to update promotional messages to be delivered and to enable the device to centrally report information on message delivery traffic and service requirements of the automatic door.

Abstract: There is described a concentrated photographic silver halide developing solution which comprises from 50 to 150 g/liter of an ascorbic acid type compound of the general formula I: ##STR1## or alkali metal salts thereof, in which the group R represents a hydroxylated alkyl group, and at least one basic compound the anion of which is carbonate, sulphite or hydroxide of which the cation is an alkali metal, especially sodium or potassium, the total sodium to total potassium ion ratio in the concentrated developing solution being from about 50:50 to 0:100 (mole: mole).Preferably the concentrated solution is entirely aqueous but it may comprise a proportion of water-miscible organic solvents such as ethyl alcohol, or glycol solvents.

Abstract: Method of processing photographic silver halide material wherein an imagewise release of the development inhibitor 1-aryltetrazole-5-thiol is achieved during processing.

Abstract: Salts of 1-phenyl-3-pyrazolidinones which are useful photographic silver halide developing agents.

Abstract: Holograms which contain gelatin as the binder are prepared by holographically exposing the material by use of coherent light, developing the holographic image by a chemical or physical process and before processing, simultaneously or subsequently, treating the material with a solution of a gelatin reactive compound which has a molecular weight of over 200 and which reacts with the gelatin to form covalent bonds therewith to increase the molecular bulk of the gelatin.

Abstract: Salts of 1-phenyl-3-pyrazolidinones with organic sulphonic acids, which are useful photographic silver halide developing agents.

Abstract: Salts of 1-phenyl-3-pyrazolidinones which are useful photographic silver halide developing agents.

Abstract: Tetra-aza indene compounds of the formula ##STR1## wherein R.sub.1 is alkyl or a ring system and R.sub.2 and R.sub.3 are hydrogen or alkyl.These compounds are of use as image toners in photographic materials.

Abstract: Salts of 1-phenyl-3-pyrazolidinones which are useful photographic silver halide developing agents.

Abstract: Compounds of the formula ##STR1## where Y is a tertiary group, X is hydrogen or a leaving group, and Q is hydrogen, amidino, alkyl or aryl, there being present in Y or Q a ballasting group which comprises 10 to 30 carbon atoms, exhibit a high secondary absorption in the blue region of the visible spectrum and are useful couplers in chromogenic monochrome negative material.

Abstract: Compounds of the formula ##STR1## wherein L is a direct bond or consists of a chain of carbon atoms or of a divalent ring system, R.sub.1 to R.sub.4 are hydrogen or alkyl, R.sub.5 or R.sub.6 are hydrogen, alkyl or aryl, or R.sub.5 together with R.sub.6 complete a ring system, and R.sub.7 is hydrogen or a group of the formula ##STR2## wherein L, R.sub.5 and R.sub.6 are as defined. These compounds are useful developing agents for activation processing.

Abstract: The new compounds of the general formula ##STR1## where R.sub.1 is hydrogen, alkyl or cyclic alkyl, R.sub.2 and R.sub.3 are each hydrogen, alkyl, a carboxylic acid, ester or amide group or cyano, and R.sub.4, R.sub.5 and R.sub.6 are each alkyl or aryl, are useful as antihalation dyes and as image dyes in photographic materials for dye-bleaching processes.

Abstract: Photographic material which comprises in at least one silver halide emulsion layer or a layer or layers adjacent thereto at least one substituted hydroquinone compound of the formula ##STR1## where R is hydrogen or optionally substituted alkyl, aryl or a heterocyclic group, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are each hydrogen, halogen or optionally substituted alkyl,x is 0 or 1,y is 0 or 1,and R.sub.1 is hydrogen or a group of the formula ##STR2## where R, x and y are as just defined.

Abstract: The new compounds of the general formula ##STR1## where R.sub.1 is hydrogen, alkyl or cyclic alkyl, R.sub.2 and R.sub.3 are each hydrogen, alkyl, a carboxylic acid, ester or amide group or cyano, and R.sub.4, R.sub.5 and R.sub.6 are each alkyl or aryl, are useful as antihalation dyes and as image dyes in photographic materials for dye-bleaching processes.

Abstract: A photographic dye diffusion transfer process is provided which operates by imagwise release of a dye.The dye diffuses to a receiving layer and is mordanted there to give a dye image. The dyes are released from a compound of the formula D--E--F--BAL by reductive cleavage.D is a group which contains the residue of diffusible dye, BAL is a ballasting group which renders the compound containing it substantive to the layer in which it is present, D and E being joined by any type of chemical bond and E and F represent a single or double bond system which links D and BAL and which has a reduction potential above -200 mV measured against a standard hydrogen electrode at a pH of less than 3 and which bond can be reductively cleaved at a pH of less than 3 by a reducing agent which is able to act as a pH below 3.

Abstract: A process for the production of a photographic image which comprises(a) imagewise exposing a photographic assembly which comprises at least during a silver halide developing step, in order optionally a supercoat layer, at least one silver halide emulsion layer, a layer containing a layer substantive hydroxypyridone azamethine compound of the general formula ##STR1## wherein R.sub.1 is hydrogen or an optionally substituted alkyl, aralkyl, cycloalkyl, aryl, amino or heterocyclic radical, Y represents hydrogen or hydroxy, --CN, --COOR.sup.1, --CONR.sup.1 R.sup.2 or --COR.sup.1 or an optionally substituted alkyl, aralkyl, cycloalkyl, aryl or heterocyclic radical and Z is hydrogen or is --CN, --COOR.sup.3, --CONR.sup.3 R.sup.4, --SO.sub.3 H, --SO.sub.3.sup.- or --COR.sup.3, where R.sup.1, R.sup.2, R.sup.3 and R.sup.

Abstract: New silver dye-bleach catalysts and the process for their manufacture are provided. These compounds have the general formula ##STR1## wherein A is an electron-withdrawing group and R.sub.1 and R.sub.2 are hydrogen, optionally substituted alkyl or optionally substituted aryl.

Abstract: New silver dye-bleach catalysts and the process for their manufacture are provided. These compounds have the general formula ##STR1## wherein A is an electron-withdrawing group and R.sub.1 and R.sub.2 are hydrogen, optionally substituted alkyl or optionally substituted aryl.