baber/WOPTO huggingface dataset:
Patent GB-1249520-A (GB)
Title: Improvements in or relating to teleprinter systems
IPC: H04L12/22
Filed: 1969-07-31
Abstract: 1,249,520. Digital transmission systems. SIEMENS A.G. 31 July, 1969 [1 Aug., 1968], No. 38373/69. Heading H4P. In a teleprinter system comprising a number of out-stations and a central station, e.g. an exchange, after setting up a connection between an out-station and the central station, e.g. by dialling, the out-station sends its identifying signal which, at the central station, is stored and selects a cipher key generator unique to the out-station. Subsequently a cipher code is transmitted by the out-station. This code consists of the output of a cipher key generator identical to that at the central station and comprising a shift register whose output is fed back and added to its input and to selected stages in the register. Alternatively the cipher code consists of a number of telegraph characters generated by the keyboard: in this case the code is also fed to the input of the out-station's cipher key generator. At the central station the cipher code sets up the bistables in the selected generator so that the generators at the two stations have identical settings. The out-station now transmits the identifying signal in ciphered' form. At the central station the signal is deciphered and compared with the stored plain language identifying signal. If the signals are identical, ciphered transmission can proceed. Characters from the keyboard are modulo-2 added to the cipher key generator output, the ciphered characters being transmitted in Start-Stop form. At the central station the ciphered characters are modulo-2 added to the output of the selected generator, the resulting deciphered signals being printed. The transmitted ciphered characters may be added to the output of the generators and fed back to the input of both generators for extra security. At the end of a message, or if transmission error is detected, the connection reverts to plain language mode. The feed back connections in the generators may be altered periodically
Patent GB-1468287-A (GB)
Title: Mixing device
IPC: B29C33/00
Filed: 1974-09-03
Abstract: 1468287 Mixing apparatus DEMAG KUNSTSTOFFTECHNIK GmbH 3 Sept 1974 [14 Sept 1973] 38496/74 Heading B1C A mixing device for mixing the constituents of a plastics composition as they are injected into a mould, comprises a mixing chamber 5 having a mixing space 5' which tapers in a direction away from a plurality of nozzles 3, 4 which are adapted to project the constituents into the chamber in directions which intersect at a point c lying just above a point or line of intersection of walls of the mixing space 5'. The chamber 5 includes a further mixing space 5" through which the materials flow to an annular discharge channel 7 connected to the mould. The nozzles are initially closed against flow of the constituents by needles 10, 11 which are held against their seats by the action of a hydraulic piston 21 acting through rocker arms 15, 16; in use pressure of the constituents is built up in the nozzles 3, 4 and a predetermined reduction of pressure on piston 21 allows the nozzles to open simultaneously for the constituents to flow into the chamber 5.
Patent GB-1532620-A (GB)
Title: Process for pigmenting polyamides
IPC: C08G69/00
Filed: 1977-09-16
Abstract: 1532620 Pigmenting polyamides E I DU PONT DE NEMOURS & CO 16 Sept 1977 [17 Sept 1976] 38635/77 Heading C3R Polyamides are pigmented by adding to a polyamide-forming salt solution, before or during polymerization, a flocculated dispersion containing 25 to 45 wt. per cent pigment which has been obtained using a concentrated aqueous nylon salt solution as flocculant for a milled concentrated aqueous slurry of a pigment and dispensing agent.
Patent GB-816569-A (GB)
Title: Improvements in or relating to hydraulic or pneumatic shock absorbers
IPC: F16F9/34
Filed: 1956-12-19
Abstract: 816,569. Pistons. PROCEDO G.m.b.H. Dec. 19, 1956 [Dec. 21, 1955], No. 38763/56. Class 122 (1). [Also in Group XXXII] An annular resilient piston 2, slidable in the cylinder 8 of an hydraulic or pneumatic shock absorber, is held between flanges or collars 4, 6, and its inner and outer peripheries have annular beads 7, 9, the outer periphery also being formed with an axially extending groove. The arrangement is such that a low resistance to liquid flow from one side of the piston to the other is provided by a path which includes apertures in one of the flanges, grooves 11 and the elastic portion 9. A higher degree of flow resistance is provided by a path which consists of apertures 5 in the flange 6 and the elastic portion 7 surrounding the piston-rod 1. As shown, the main body of the piston is reinforced by metal rings 13, 14. The elastic portions 7 and 9 are urged into flow-preventing position by means of respective springs 12, 10. In a modification (Fig. 1, not shown), the rings 13, 14 and the spring 12 are omitted.
Patent GB-978477-A (GB)
Title: Improvements in shuttles for looms for weaving
IPC: D03J5/24
Filed: 1962-10-13
Abstract: 978, 477. Loom shuttles. W. HOLT. Oct. 10, 1963 [Oct. 13, 1962], No. 38824/62. Heading D1E. The self-threading block A has longitudinal grooves a registering with grooves b in the walls of the shuttle to receive the prongs of a U-shaped member which secures the block in the shuttle.
Patent GB-980747-A (GB)
Title: Coal boxes
IPC: F24B15/04
Filed: 1961-10-31
Abstract: 980,747. Coal boxes. D. T. BOOTH. Jan. 30, 1963 [Oct. 31, 1961], No. 38892/61. Heading A4U. A coal scuttle in which a measured amount of coal is deposited in a hand shovel has compartments open at top and bottom formed by radially disposed webs s joined to a central tubular member f and a cylindrical peripheral member d, this unit being rotatably mounted on an upper baseplate g which has an aperture q covered by a plate h with a handle u. To obtain a shovelful of coal the plate h is moved sideways and coal falls into the shovel j. The unit is then rotated by means of a handle c to place a full compartment over the plate h.
Patent GB-1154641-A (GB)
Title: Gas Turbine Starting Systems.
IPC: F02C7/262
Filed: 1966-08-31
Abstract: 1,154,641. Gas turbine plant. UNITED AIRCRAFT CORP. Aug.31, 1966 [Sept.8, 1965], No.38926/66. Heading F1G . [Also in Divisions F4 and H3] In a gas turbine plant comprising a number of gas turbine gas generators connected in parallel to supply a common free turbine, and in which each gas generator receives a pilot flow of fuel while it is being started, control means responsive to the detection of ignition of the pilot fuel flow initiates the main fuel supply to the gas generators only when ignition of pilot fuel flow has occurred in all the gas generators. This prevents the hot exhaust gases from one generator causing accumulated unignited fuel in another gas generator to explode. In the plant shown in Fig.3, a gas generator comprising a compressor 170, combustion equipment 174 and a turbine 172 is connected in parallel with a similar gas generator 270, 274, 272 to supply exhaust gas to drive a turbine 84. At starting, a sequence controller 80 energizes electric starting motors 5 to bring the gas generators up to starting speed, and then initiates pilot fuel flow P and simultaneously actuates the ignition apparatus I. If ignition occurs in combustion equipment 174, the resultant rapid rise of exhaust gas temperature of turbine 172 is detected by a transducer 110 and applied, in the form of a corresponding electrical signal, to a differentiator comprising a capacitor 112 and an amplifier 117 provided with negative feedback through a resistor 114. The output of the differentiator, in the form of a signal proportional to the time rate of change of temperature, triggers a bistable multi-vibrator 145. The differentiator discriminates between the rapid rise of temperature resulting from ignition and the slow rise caused by a change of ambient temperature. Similarly, if ignition occurs in combustion equipment 274, a bi-stable multi-vibrator 245 is triggered. When both bi-stable multi-vibrators have been triggered, an AND circuit 82 initiates the main fuel flow M of both gas generators. The differentiator 112, 117, 114 may be replaced by alternative circuit arrangements described with reference to Figs.1 and 2 (see Division H3).
Patent GB-943708-A (GB)
Title: Improvements in and relating to vee belt drives
IPC: F16H61/662
Filed: 1961-10-31
Abstract: 943,708. Expanding-wheel gear. FICHTEL & SACHS A.G. Oct. 31, 1961 [Nov. 17, 1960], No. 38973/61. Heading F2D. An expanding pulley is adjusted by torque responsive means irrespective of the direction of torque transmission. As shown in Fig. 2, pulley halves 5, 6 are rotatably mounted on a shaft 10, half 5 being axially fixed and half 6 being urged towards the other half by a spring 11. Projections 8 of the half 5 extend through slots 17 in the half 6 to provide a driving connection therebetween, and levers 7 having forked parts are pivotally mounted on the projections 8. The shaft 10 has radial arms 9 extending between the forked parts of the levers, and a cam part of each lever bears against a plate 12 against which the spring 11 reacts. The levers 7 are rotatably adjusted, according to the torque transmitted and act to move the plate 12 axially and thus vary the loading of the spring 11 so as to adjust the pulley half 6. In the embodiment of Fig. 5, the pulley halves 5, 6 are drivingly connected by projections 15, 16 on the half 5 which are axially slidable in slots 17 in the half 6, and the spring 11 reacts against a plate 14 which also has projections entering the slots 17. The driven shaft has radial arms 13 co-operating with cam recesses in the plate 14, the arms riding out of the recesses with increasing torque to force the plate axially and thus increase the force of the spring 11 urging the pulley halves together. In both embodiments the pulley 5, 6 forms the driven pulley of a V-belt gear having a driving expanding pulley adjusted by a spring or by a speed-responsive device.
Patent GB-1202061-A (GB)
Title: Packing for reciprocating or rotating engine parts
Inventor: SCHMITT WILHELM
IPC: F16J15/00
Filed: 1967-08-24
Abstract: 1,202,061. Shaft seals. CARL FREUDENBERG. 24 Aug., 1967, No. 39026/67. Heading F2B. Lip packings 2, 3 define one or more chambers 8 which reduce in pressure along the shaft 5 from the higher pressure end, each lip having a surface on its high pressure side acted on by fluid pressure to relieve the load on the lip and a surface on its low pressure side acted on by fluid pressure to increase the load on the lip produced by the elasticity of the material and optionally by a spring, the arrangement being such that, in operation, the total load on the lip is high enough to prevent passage of high pressure fluid into the lower pressure space. The arrangement provides a balanced seal. Pressure P 1  acting radially outwards on an area F R  defined by a radial plane passing through the edge 9 of the lip and the inner radial face of the reinforcement 12 is opposed by the lower pressure P 2  acting radially inwards on the same area F R , the latter pressure being added to both the pressure PG produced by the elasticity of the lip and the pressure P F  produced by the spring 7. In another embodiment, fluid pressure (P 1 ) acting radially outwardly on an area (F 1 ) is opposed by both the fluid pressure (P 2 ) acting radially inwardly on an area (F R ) and the pressure produced by the elasticity of the lip. If desired, the packing may comprise a single unit having two or more lips.
Patent GB-1528195-A (GB)
Title: Apparatus for the determination of extreme density values in a transparent original
IPC: G03B27/80
Filed: 1975-09-25
Abstract: 1528195 Measuring densities of originals AGFA-GEVAERT AG 25 Sept 1975 [25 Sept 1974] 39318/75 Heading G2A An original 1a to be printed on to sensitive material 5 is first moved through a scanning station at which light transmitted thereby passes through a slit 7a and slots 9a (or circular holes) in a rotating diaphragm disc 9 on to a photo-cell 11 so that the densities of successive sub-areas of the original are measured by the photo-cell 11, an evaluator 12 being connected to photo-cell 11 to determine the maximum and/or minimum density measured, preferably for use in a shutter control device 15. As shown detectors 13, 14 detect notches in the edge of a strip 1 of originals 1a to initiate and terminate operation of the evaluator 12 for each original 1a. A photo-electric arrangement 16, 17 may block the passage of signals to the evaluator 12 when light from the original is incident on an area of the disc 9 between two slots 9a. The strip 1 is halted at the exposure station for printing on to sensitive material 5.
Patent GB-352000-A (GB)
Title: Improvements in or relating to textile materials
Filed: 1929-12-24
Abstract: Crape effects are produced on fabric comprising highly twisted crape threads and more particularly on fabrics comprising crape threads made of or containing cotton or other natural cellulose fibres, or artificial filaments such as regenerated cellulose or cellulose acetate or other cellulose esters or ethers, by first treating the fabrics with an agent adapted to cause swelling of the material of the threads and then subjecting them to the action of liquid adapted to cause the agent to exert its swelling effect.  Examples of such swelling agents are ammonium, calcium, or other thiocyanates, or zinc halides, sodium iodide, and calcium chloride or nitrate, acetic, lactic, aromatic-sulphonic, or other organic acids, methyl, ethyl, or other alcohols, acetone, methyl-ethyl-ketone, methyl acetate, ethyl lactate, and amines such as aniline, any of which are suitable for cellulose esters or ethers while the inorganic compounds are more suitable for cotton or regenerated cellulosic artificial silk.  As an example, a fabric comprising threads of cellulose acetate may be treated with absolute ethyl alcohol or with acetic acid applied in a benzene solution, the craping being effected subsequently by the action of water.  Where the swelling agents have too strong a solvent action on the materials treated, their use with suitable diluents, either as vapour, liquid, or gas, is preferred. Suitable diluents are aliphatic or aromatic hydrocarbons such as petroleum ether, benzene, or toluene.  Soaps, wetting agents, salts, acids, or other substances which modify the craping action of the water may be added thereto, and the craping treatment may be combined with the dyeing of the fabric.  Softening of the filaments should be avoided.  The conditions necessary in the process described in Specification 348,589 for treating a sized craped thread or fabric should be observed, and with that process the present process may be combined. The highly twisted crape threads may be used either as warp or weft. Brocade or similar effects may be obtained by effecting the swelling of selected portions by printing or stencilling, suitable thickeners for the swelling agents being used if necessary.  Specifications 224,642, 226,256, [both in Class 142 (iv), Woven fabrics &c.], and 351,999 are also referred to.
Patent GB-1534809-A (GB)
Title: Supply system for vehicles on tracks
IPC: B60M3/00
Filed: 1977-09-21
Abstract: 1534809 Power supply for electrical rail vehicles SIEMENS AG 21 Sept 1977 [28 Sept 1976] 39430/77 Heading B7L An A.C. supply system for two tracks for electrically powered vehicles 9, 10, each track having a first conductor, e.g. overhead wires 3, 4, and a second conductor, e.g. rails 7, 8, wherein the first conductors are respectively joined to opposite ends of a transformer and the second conductors are connected to the centre tap M of the transformer. The arrangement permits high supply voltages and dispenses with the need for a separate track supply feeder rail.
Patent GB-1518834-A (GB)
Title: Magnetic tape cassette
IPC: G11B23/087
Filed: 1975-09-26
Abstract: 1518834 Tape cassette BASF AG 26 Sept 1975 [28 Sept 1974] 39493/75 Heading B8M Concentric rings of teeth 7a, 8a are provided on the spool hubs of tape cassettes for engagement with spring-biased catches 14a, 14b on spring means 13a, 13b to impede rotation of the hubs and maintain the tape taut when the cassette is removed from a recorder. The spring means preferably comprise curved spring steel wires connected at one end to the upper or lower wall of the cassette and the other end forming the catch 14a or 14b to a respective one of a pair of movable flat plates lying parallel to the upper and lower walls of the cassette and between which the cassette hubs are sandwiched, the spring means biasing the plates towards the front edge of the cassette so that when the catches 14a, 14b engage the teeth 7a, 8a respectively, urging them in opposite directions to pull the tape loop 9 taut, the flat plates engage ramp-like members (23), Fig. 2 (not shown), 26a, 26b, 27a, 27b on the cassette housing inner surface which force the plates inwardly to engage the upper and lower surfaces of the hubs to hold them in a position symmetrically along the centre plane of the cassette. On placing the cassette in a recorder, a rod enters through a slot in the bottom wall of the cassette and engages a central aperture in the flat plates. Actuating means on the recorder shift the rod and the plates toward the rear of the cassette and out of engagement with the hub surfaces, the catches simultaneously being withdrawn from the rings of teeth. Engagement of the catches with the teeth may impart a 5-8 degree turn in the winding direction to the respective spool hub. The spring tension and arrangement is such as to permit manual rotation of the spool hub in either direction while the catches are in engagement with the hub teeth.
Patent GB-1261389-A (GB)
Title: Anthelmintic compositions
Inventor: CORNWELL RENDLE LOMAX
IPC: A61K31/505
Filed: 1969-08-08
Abstract: 1,261,389. Anthelmintic compositions. PFIZER Ltd. 6 Aug., 1970 [8 Aug., 1969], No. 39678/69. Heading A5B. A method of controlling helminthiasis due to O-ostertagi comprises administering to the infested animal (a) 1-diethylcarbamoyl-4-methylpiperazine and (b) a compound of formula: where R<SP>1</SP> is H, CH 3 , C 2 H 5  or halogen, X is (CH 2 ) 2 , (CH 2 ) 3  or CH=CH, Y is (CH 2 ) 2  or (CH 2 ) 3  and R<SP>2</SP> is H or CH 3 . Compound (a) may be administered as the free base or citrate salt. Compounds (b) specified are trans 1-methyl-2 (2-thien-2-ylvinyl)-1, 4, 5, 6-tetrahydropyrimidine and trans 1-methyl-2 [2-(3- methylthien-2-yl) vinyl]-1, 4, 5, 6-tetrahydropyrimidine. They may be administered as tartrate salts. In an Example a throat drench composition comprises compounds (a) and (b), methyl p-hydroxybenzoate, propyl p-hydroxybenzoate, FD and C yellow, HCl and demineralized water.
Patent GB-1085428-A (GB)
Title: Improvements in and relating to apparatus for spreading pulverized or granular materials
IPC: E01C19/20
Filed: 1966-09-06
Abstract: 1,085,428. Spreading salt and sand. LANDBOUWERKTUIGEN-EN MACHINENFABRIEK H. VISSERS N.V. Sept. 6, 1966 [Oct. 14, 1965], No. 39744/66. Heading A1D. A machine for spreading sand and salt on roadways is provided with a spout 2 which is transversely reciprocated and is provided with an opening 11 on one side only so that material is spread to one side of the machine.
Patent GB-1268070-A (GB)
Title: A novel tetrahydrobenzazepine derivative, processes for its production and composition containing same
IPC: C07C17/00
Filed: 1969-08-08
Abstract: 1,268,070. Benzazepine derivative. J. R. GEIGY A.G. 8 Aug., 1969 [9 Aug., 1968], No. 39755/69. Addition to 1,221,324. Heading C2C. The novel compound 2-methyl-7-chloro- 2,3,4,5 - tetrahydro - 1H - 3 - benzazepine of Formula I: and its pharmaceutically acceptable acid addition salts, are prepared by treating a compound of Formula II: wherein X is chlorine, bromine or iodine, or an inorganic acid addition salt thereof, with a Lewis acid, preferably at temperatures between 100‹ and 300‹ C., and isolating the product of Formula I from the reaction mixture, and, if desired, converting this product into a pharmaceutically acceptable acid addition salt. 1 - (p - Chlorophenyl) - 2 - (2 - chloroethylamino)-propane hydrochloride is prepared by reacting chlorobenzene with propionic acid anhydride to give p-chloropropiophenone, reacting this with sodium borohydride to give 1-(pchlorophenyl)-propanol, treating this with sodium hydrogen sulphate to give p-chloro-#-methylstyrene, reacting this with ethyleneimine to give 1 - (p - chlorophenyl - 2 - (1 - aziridinyl) - propane, and reacting this with hydrogen chloride. Pharmaceutical compositions having an anorexigenic effect, for oral, rectal or parenteral administration, comprise the novel compound of Formula I, or a pharmaceutically acceptable acid addition salt thereof, together with a carrier.
Patent GB-1078541-A (GB)
Title: Process for the production of polyacetals from terminal diolefine dioxides
IPC: C08F20/00
Filed: 1964-10-01
Abstract: A process for the production of polyacetals comprises treating a terminal aliphatic or cycloaliphatic diepoxide with an inorganic proton acid or Lewis acid at -10 DEG  C. to +40 DEG  C. in the presence of an inert organic solvent and in the absence of any resinous material and with the exclusion of water.ALSO:Transparent, adherent films are formed on glass sheets by applying a dilute dioxane solution of a polyacetal prepared by polymerising 1,4-dimethylenecyclohexane dioxide in the presence of BF3 etherate at 20 DEG C. in dry ether.
Patent GB-1202150-A (GB)
Title: Oil fog generating device
Inventor: HIERTA LARS JOHAN
IPC: F16N7/34
Filed: 1968-08-21
Abstract: 1,202,150. Spray producers. EATON YALE & TOWNE Inc. 21 Aug., 1968 [18 Sept., 1967], No. 40052/68. Heading B2F. [Also in Division F2] Apparatus for generating a liquid particle suspension in a gaseous carrier comprises a source of pressurised gas, a housing 30 in communication with the source and defining a vortex chamber 32 having an inlet 34 and outlet 36 wherein pressurised gas supplied to the inlet is transformed into helicoconically flowing, high velocity gas at the outlet, a source of liquid in communication with the outer periphery of the helicoconically flowing, high velocity gas adjacent the outlet of the vortex chamber, and means 50 defining an interaction chamber adjacent to and communicating with the outlet wherein the liquid is aerolised by the helicoconically flowing, high velocity gas. The gas may be supplied to the vortex chamber through tangential inlets 34, and the liquid, particularly lubricant from a reservoir may be in aspirational communication with the gas at radial or tangential inlets 70 or an annular inlet, disposed between the vortex chamber and the interaction zone 37. Means may be provided for condensing large particles and recirculating them via the reservoir.
Patent GB-1202478-A (GB)
Title: Method of and apparatus for loading boreholes
IPC: E02D15/04
Filed: 1968-08-22
Abstract: 1,202,478. Spray producers. AFRICAN EXPLOSIVES & CHEMICAL INDUSTRIES Ltd. 22 Aug., 1968 [29 Aug., 1967], No. 40234/68. Heading B2F. [Also in Division E1] A nozzle structure for use in the filling of a borehole with a slurried or plastic mass has a tubular member 15 on which is mounted an annular element 20 or more than one such element spaced along the member, the or each element being of diameter larger than the borehole in which the apparatus is to be used so that each element will be flexed rearwardly whilst maintaining sealing contact with the borehole as the member is moved in and out of the borehole when mounted on a flexible hose supplying the mass to the member for passage therethrough. The flat ring forming each element is seated in an appropriately positioned groove encircling the member and may be paired with a perforated, flexible annular element 21 of greater diameter than the ring to form therewith a non-return valve that will facilitate entry of the nozzle into the borehole.