baber/WOPTO huggingface dataset:
Patent GB-1490990-A (GB)
Title: Copying apparatus having a monitoring device for monitoring the speed at which copying material is conveyed along a transport path
IPC: G03D3/00
Filed: 1974-10-30
Abstract: 1490990 Measuring speed electrically AGFAGEVAERT AG 30 Oct 1974 [31 oct 1973] 46953/74 Heading GIN (A) Means for monitoring the speed of copying material 9 in a copying apparatus comprises rotatable means 8 arranged to be driven by the material 9, or by the transport means 5 if no material is present, tachometer means for measuring the speed of rotation of rotatable means 8 and for generating a control signal when said speed falls below a predetermined minimum, and relay 25 for switching off heating means 35 in response to said control signal. Relay 25 is energized by a signal from a semiconductor trigger stage 22 and may also open circuit drive motor I and energize ventilator 33. Trigger stage 22 provides a signal when capacitor 19 charges for a sufficient length of time for the voltage applied to the input of the trigger stage 22 to exceed the reference value set by resistors 23, 24. The charging time of capacitor 19 is determined by the width of pulses transmitted from means 10 which depends on the speed of rotation of shaft 6. Every time electrical continuity between contacts 13, 14 is interrupted a positive voltage surge, differentiated by the circuit comprising capacitor 29 and resistor 30, is applied to the control electrode of the field effect transistor 20 which discharges capacitor 19.
Patent GB-1127134-A (GB)
Title: Photographic silver halide emulsions
Inventor: KALENDA NORMAN WAYNE
IPC: C21B13/00
Filed: 1965-11-09
Abstract: 1,127,134. Photographic silver halide materials; colloid transfer. EASTMAN KODAK CO. Nov.9, 1965 [Nov.10, 1964], No.47582/65. Heading G2C. A photographic light-sensitive silver halide emulsion desensitized to blue and U. V. light has a substantially unhardened colloid binder and contains a colloid-tanning silver halide developing agent and a desensitizing amount of a compound of the formula:- where R is an alkyl, carboxyalkyl or sulphoalkyl group of up to 10 carbons, or a phenacyl group, and X is either a separate anion or, when R is sulphoalkyl, represents the negative charge of said group. The emulsion may or may not be optically sensitized and may be coated on to glass, paper or a fabric such as tea bag stock or silk screen stock. The coated element may be used in the colloid transfer process by imagewise exposing, developing with aqueous alkali and contacting with a receiving sheet, or, when a fabric support is used, the hardened colliod remaining after the development step may be washed off with hot water to form a stencil.
Patent GB-1384928-A (GB)
Title: Tyre curing press
IPC: B29C33/02
Filed: 1972-10-15
Abstract: 1384928 Moulding tyres NRM CORP 15 Sept 1972 [1 Nov 1971] 42927/72 Heading B5A The curing bladder 2 of a mould in a tyre press has its lower end clamped to a lower mould part 11 and its upper closed end engaged by a support 6 movable axially of the mould to stretch the bladder and decrease its diameter during tyre loading and removal; the support 6 is non- circular to induce axial folding of the bladder at circumferentially spaced areas to bring the diameter of the outer periphery of the bladder within the diameter of the tyre beads. As shown in Fig. 4, the support may comprise a plate with concave sides and with a central depression to receive a part 17 of the bladder; alternatively it may comprise radiating bars in Y or cross form.
Patent GB-1451464-A (GB)
Title: Conveying of objects by continuously moving conveyors
IPC: B65G47/00
Filed: 1973-10-17
Abstract: 1451464 Helical conveyers J R E WAHREN 17 Oct 1973 [25 Oct 1972] 48449/73 Heading B8A Vertical, endless, guided helical loops form means for collecting, accumulating and disstributing objects between continuously movable conveyer tracks leading to and from treatment stations. In Fig. 1, machine parts requiring a series of operations are conveyed between work stations by conveyer tracks interspersed with helical loops 1, 2, 3, 4, 5, 6 and 6<SP>1</SP>. The loops are provided with selectively actuatable means to transfer parts between respective conveyer tracks.
Patent GB-1471902-A (GB)
Title: Styrylsulphonylamidines
IPC: A61K31/155
Filed: 1974-06-10
Abstract: 1471902 Styryl sulphonamidines BRISTOL MYERS CO 10 June 1974 [11 June 1973 8 April 1974] 48601/75 Divided out of 1471901 Heading C2C Novel compounds of Formula I wherein R 1  is hydrogen, alkyl, nitro, amino, halogen, cyclohexyl, carbamoyl, alkylsulphonyl containing from 1 to 4 carbon atoms, sulphamoyl, or alkanoylamido containing from 2 to 4 carbon atoms, R 2  is hydrogen, alkyl or halogen, R 3  is alkyl containing from 1 to 4 carbon atoms or hydrogen, and A is alkyl containing from 1 to 3 carbon atoms, di-(C 1-4 )alkylaminophenyl, phenyl, benzyl, #-naphthyl, styryl, phenylbutadienyl or (X) n phenylwherein X is alkoxy containing 1 to 4 carbon atoms, halogen, nitro, amino, or alkanoylamido containing from 2 to 4 carbon atoms and n is 1 or 2 are prepared either by reaction of a compound of Formula II with a compound of Formula III or by reaction of a compound of Formula IV with R 3 NH 2 . Intermediates of Formula II above are prepared by action of PCl 5  on the sulphonic acid obtained by reaction of SO 2  on the appropriately substituted styrene. Intermediates of Formula IV above are prepared by action of PCl 5  on the corresponding amides. Other starting materials for these intermediates are prepared. Pharmaceutical compositions in conventional forms and having analgesic activity comprise an above novel compound and a carrier therefor.
Patent GB-1467793-A (GB)
Title: Process for preparing aminoethanols
IPC: C07D317/58
Filed: 1975-11-27
Abstract: 1467793 Benzodioxoles NICHOLAS INTERNATIONAL Ltd 27 Nov 1975 48708/75 Heading C2C Addition salts of compounds of the general formula (R, R<SP>1</SP>=H, C 1-4  alkyl) with arene, aralkane and C 3-25  alkane and alkene mono- and dicarboxylic acids are prepared from the parent acid and base. These compounds are bronchodilators, and may be administered in the form of pharmaceutical preparations containing them in association with a carrier.
Patent GB-1163636-A (GB)
Title: A Duct Unit
IPC: H02K44/12
Filed: 1967-10-26
Abstract: 1,163,636. Generators operating by electromagnetic interaction with fluids. COMPAGNIE GENERALE D'ELECTRICITE. 26 Oct., 1967 [26 Oct., 1966], No. 48800/67. Heading H2A. A duct wall for an MHD generator comprises a metal bearer member 17 having coolant passages 18 on which are mounted blocks 1 of insulating material. The blocks are preferably of frusto-pyramidal shape and made of pure fritted magnesia. A stud is brazed into recesses in the base of each block and secured to the bearer member by screws and washers. The base of the block is chamfered and grooves provided in member 17 and the space so formed is filled with a polymerizable silicone elastomer 50. In an alternative construction the blocks may be brazed directly on to the bearer member and may be composed of metal coated with insulating material. Completely assembled duct elements may be secured together by clamp rings to increase the length of the generator duct and sealed by a gasket of polymerizable material attached to the end face of the duct element, Figs. 7 and 8 (not shown).
Patent GB-985611-A (GB)
Title: Polyesters
Inventor: MCREATH MICHAEL KING
IPC: C08G63/682
Filed: 1962-12-28
Abstract: 4 - b  - hydroxyethoxy - 3:5 - dichlorobenzoic acid was prepared by dissolving 3:5-dichloro-4-hydroxybenzoic acid, ethylene chlorohydrin and NaOH in water and acidifying with H2SO4. The product was esterified with methanol and H2SO4.  Specification 716,877 is referred to.ALSO:Flame resistant polyesters and copolyesters contain the repeating unit:- <FORM:0985611/C3/1> They may be prepared by polymerization of 4-(b -hydroxyethoxy)-3,5-dichloro-benzoic acid or an ester forming derivative at reduced pressure and elevated temperature.  If the ester forming derivative is an ester an ester interchange catalyst, e.g. tetramethyl titinate, may be present.  In the earlier stages of polymerization the mixture may be molten and N2 gas may be passed through it.  Copolyesters may be prepared from: (a) 4-(b -hydroxyethoxy)-3,5 -dichlorobenzoic acid or an ester and a hydroxy acid or its ester or a di(o -hydroxyalkyl) ester of a dicarboxylic acid; (b) polymerized 4-(b -hydroxyethoxy)-3,5-dichlorobenzoic acid and a hydroxy acid or its ester or the di-(o -hydroxy-alkyl) ester of a dicarboxylic acid or (c) mixtures (a) or (b) in which the di-(o -hydroxyalkyl) ester of a dicarboxylic acid is replaced by a mixture of a glycol and a dicarboxylic acid.  The products may be made into shaped articles, films or fibres.  Specification 716,877 is referred to.
Patent GB-1005897-A (GB)
Title: Process for the preparation of cyclopropanecarboxylic acid derivatives and intermediates useful therein
IPC: C07C69/743
Filed: 1963-12-11
Abstract: The invention comprises compounds of the formula <FORM:1005897/C2/1> where R is hydrogen or methyl and (i) X is acyloxy and Y is cyano, or (ii) X is halogen and Y is -COOR1, where R1 is C1- 6 alkyl; the production of compounds (i) by acylation of the corresponding hydroxy compound; the production of compounds (ii) by converting a compound <FORM:1005897/C2/2> into its acid halide and heating; producing compounds of the formula <FORM:1005897/C2/3> by treating a compound of the first formula above in an inert anhydrous solvent with a strong alkali metal base; and, if desired, saponifying the last compounds to produce chrysanthemic acid or its lower homologue, as such or as an alkali metal salt. Methods are given for production of the starting materials, exemplified as follows: (1) dimethylacrolein diethylacetal is condensed with isobutenyl ethyl ether to produce 1,1,3-triethoxy-2,2,5-trimethylhex-4-ene, which with 2% H3PO4 gives 2,2,5-trimethyl - 3 - ethoxyhex - 4 - en - 1 - al; this is reduced to the 1-ol, the tosyl derivative prepared, and reacted with KCN to give 3,3,6-trimethyl - 4 - ethoxyhept - 5 - ene - 1 - nitrile; this is hydrolysed to 3,3,6-trimethyl-4-ethoxyhept-5-en-oic acid, which heated with thionyl chloride produces ethyl 3,3,6 - trimethyl - 4 - chlorohept-5-enoate; (2) b -ethoxyisovaleraldehyde and ethyl isopropylidene cyanoacetate are condensed to give ethyl 2-cyano-3,3,6-trimethyl-4-oxo-6-ethoxyheptanoate, which with aqueous acetic acid gives ethyl 2-cyano-3,3,6-trimethyl-4-oxohept - 5 - enoate, which is hydrolysed and decarboxylated to 3,3,6-trimethyl - 4 - oxohept-5-ene nitrile; this is reduced to the 4-ol and reacted with benzoyl chloride to give the 4-benzoyloxy compound; (3) 3,3,6-trimethyl-4-(p-nitrobenzoyloxy) - hept - 5 - ene - 1 - nitrile and corresponding 4-acetoxy compound are obtained similarly; (4) as (1), but without the initial 5-methyl or final 6-methyl group; (5) b -ethoxybutyraldehyde and ethyl isopropylidene cyanoacetate condense to produce ethyl 3,3-dimethyl-6 - ethoxy - 4 - oxo - 2 - cyanoheptanoate, which is hydrolysed and decarboxylated to 3,3-di methyl - 6 - oxohept - 5 - ene 1 - nitrile; this is reduced to the 4-ol, and esterified with benzoyl chloride.
Patent GB-1516049-A (GB)
Title: Line current detention circuit
IPC: H04M3/22
Filed: 1976-11-25
Abstract: 1516049 Detecting current flow INTERNATIONAL STANDARD ELECTRIC CORP 25 Nov 1976 [3 Dec 1975] 49184/76 Heading G1U [ Also in Division H4 ] Current flowing in either direction in a line lg 2, e.g. to a telephone handset PA, is detected by applying a fraction R1, R2 of the voltage drop across Zener diode ZD1 or ZD2 in the line to a LED DE1 or DE2, light from which switches photo-transistor PT1 or PT2. The outputs of the photo-transistors pass to logic circuits NB1, NB2.
Patent GB-1268322-A (GB)
Title: Automatic frequency control system
Inventor: COOK JOHN MICHAEL WILLIAM
IPC: H03L7/097
Filed: 1970-10-19
Abstract: 1,268,322. Automatic frequency control. MULLARD Ltd. 19 Oct., 1970, No. 49471/70. Heading H3A. [Also in Division G4] In an AFC system for controlling the frequency of a voltage controlled oscillator VCO, a binary digital number from a reference store REF, representative of the required frequency of the oscillator, is compared at intervals in a binary subtracter SUB, with a binary digital number representative of the actual frequency of the oscillator derived via a frequency measuring unit IFM, and the successive differences between the two numbers obtained from the subtractor are added in a digital accumulating adder ACC the output of which is converted to an analogue voltage by a digital to analogue converter DAC for controlling the frequency of the oscillator. A reference signal is applied to the reference store via a frequency measuring unit. Clock pulses CP actuate a sampler SW and the accumulator ACC sequentially. The embodiment of Fig. 2 (not shown) suitable for microwave frequencies consists of two samplers (SW 1 , SW 2 ) for sampling the reference and controlled oscillator frequencies, a common microwave directional coupler (DC) and a common frequency measuring unit (IFM). In operation, a master oscillator (MO) applies clock pulses (CP 1 , CP 3 ) to enable sampling of the reference signal and for resetting of the reference store so that the reference signal is stored therein, the subtractor producing zero output as the signal applied at its two inputs are the same. After 180 degrees, a further clock pulse (CP 2 ) enables the controlled oscillator signal to be sampled which is then compared in the subtractor with the stored reference signal, to produce an output to the accumulator controlled by a further clock pulse applied after a sufficient delay with respect to the earlier clock pulses.
Patent GB-1372421-A (GB)
Title: Information record and apparatus for producing same
IPC: G11B7/003
Filed: 1971-10-26
Abstract: 1372421 Recording and playback RCA CORPORATION 26 Oct 1971 [27 Oct 1970] 49635/71 Heading G5R A transparent tape, Fig. 3 or 4, having periodic depth variations extending across it to form a diffraction grating carries a recording of an information, e.g. audio, signal in the form of a constant-depth width-modulated portion 39 or 41. The initial recording is effected by means of a pulsed laser 10, Fig. 1, a chevron modulator 15, and a moving tape 23 coated with a photoresist material which is processed and used to form a metal master tape for pressing duplicate record tapes as described in Specification 1,326,767. A pressure-sensitive dye may be used to produce a difference in transparency between the two portions of the record tape.
Patent GB-1534519-A (GB)
Title: Method and apparatus for displaying dangerous movements of potential collision partners in sea and coastal ship travel
IPC: G01S13/937
Filed: 1975-12-05
Abstract: 1534519 Radar display W HINSCH 5 Dec 1975 [6 Dec 1974] 50051/75 Heading H4D A C.R.T. display device intended to complement a ship-borne P.P.I. is provided in proximity therewith on the ship's bridge and provides anticollision information, using a long persistence trace, a rectangular two co-ordinate display of bearing on the horizontal co-ordinate and range on the verticle co-ordinate. An approaching ship B's trace on successive scans decreases in range (elongation of its trace) and its bearing progressively changes to the left showing that it is on a non- collision course. However the ship's trace A remains on the same bearing as its trace elongates thereby showing a collision course and signifying that evasive action is necessary.
Patent GB-1137575-A (GB)
Title: Internally meshing gear pumps and motors
IPC: F01C17/02
Filed: 1966-11-09
Abstract: 1,137,575. Rotary fluid-pumps and motors. DANFOSS A. S. Nov. 9, 1966 [Nov. 23, 1965], No. 50136/66. Heading F1F. A rotary fluid-pump, or motor, comprises a casing that includes a fixed valve-plate 3, Fig. 1, lodged between annular portions 2, 4 containing inlet and outlet passages 14, 15 for the working fluid, two pairs of internally-meshing gears 10--13 being separated from each other by said plate and arranged to operate in anti-phase relationship. The externally-toothed gears 10, 11 in said pairs are attached to a rotatable driving, or power-output, shaft 7 whereas the associated internallytoothed gears 12, 13 are rendered capable of orbital motion without rotation about their longitudinal axes in that they are pivotally coupled to tubular shafts 26, 27 that are in turn pivotally coupled to the portions 2, 4 of the casing, the pivotal coupling being effected by a plurality of balls 34--37 that are lodged between radial teeth on the adjacent parts and are retained in these situations by cages (not shown) e. g. wire rings engaging with bores in the balls. Each pair of gears 10, 12, or 11, 13, is located between valve plates 16, 17, or 18, 19, that are fixed to the respective internally-toothed gears by pins 20 and subjected to axial loading by a piston 21, or 22, to which thrust is applied by a spring 24, or 25, and pressure communicated thereto through passages 23 from the high-pressure side of the pump. Annular passages 38, 39 associated with the passages 14, 15 are periodically and sequentially connected to working spaces between the gears by bores 44--47 and radial grooves 40--43 in the plate 3 and radial grooves 48, 49 in the adjacent plates 17, 19, the fluid-distributing valveassembly thereby constituted by the plate 3 and the adjacent valve-plates being generally similar to a fluid-distribution valve disclosed in Specification 1, 102, 997. The pump or motor may be modified in that it includes two pairs of internally-meshing gears 110--113, Fig.2, the internally-toothed gears 112, 113 being connected to each other by a tubular shaft 126 that is pivotally supported by a ring 132. Balls are employed as before to effect pivotal coupling of the shaft to the ring 132 and the gears 112, 113. It is indicated that as an alternative two separate fixed valve-plates may be employed, which plates have the two pairs of gears situated between them, a plate being keyed to the shaft 107, Fig. 2, between said pairs to effect sealing of the axially-inner ends of the gear-tooth spaces. It is also indicated that the internally-toothed gears may be fixed and the other gears be rendered capable of planetary motion while either driving or being driven by the poweroutput, or driving, shaft.
Patent GB-1291826-A (GB)
Title: Improvements relating to fluid-mixing devices
Inventor: PERRIN ALFRED JAMES
IPC: F22G5/12
Filed: 1968-10-22
Abstract: 1291826 Treating gases with liquids; mixing in conduits BABCOCK & WILCOX Ltd 22 Oct 1969 [22 Oct 1968] 50182/68 Headings B1R and B1C [Also in Division F4] Heat exchiange apparatus for attemperating superheated steam flowing through a tubular duct 10 by spraying into the duct water from a series of nozzles 20 incorporates a multiapertured sleeve 11 for creating a turbulent flow of steam which promotes intimate mixing between the water and steam. The sleeve 11, which has flared end portions 13, 14, is located coaxially within the duct and defines therewith an annular space 19. Four axially extending equally spaced rows of apertures 15 are provided in the central part of the sleeve and the upstream end portion 13 has four larger apertures 16 opposite which are located the outlet ends of spray nozzles 20 extending radially from a toroidal distributor 17. The heat exchange apparatus can alternatively be used as a mass transfer unit; a mixture of a liquid soluble gaseous impurity, e.g. chlorine and other gases, is led through the duct and water is sprayed through the nozzles to dissolve out the chlorine, screening means being provided downstream of the sleeve.
Patent GB-1200958-A (GB)
Title: Improvements relating to piston-type internal combustion engines
IPC: F02B31/00
Filed: 1968-10-23
Abstract: 1,200,958. Treating charge. DAIMLERBENZ A.G. Oct. 23, 1968 [Oct. 25, 1967], No.50261/68. Heading F1B. In a method of operating a piston-type internal combustion engine, the charge flowing into the cylinder is given a swirling motion about an axis extending in the direction of the cylinder axis, and the ratio of the circumferential velocity to the axial velocity of the swirling charge is increased with decreasing load and engine rotational speed, from a minimum value of the circumferential velocity at full load and maximum engine rotational speed. The air admission port may contain a device for deflecting the incoming charge, the device being arranged to be controlled in dependence on engine rotational speed and load or on the charge throughput in such a manner as to increase the swirling motion with decreasing throughput. The engine may be one in which the charge is air only, the fuel being injected directly into the cylinder or one in which the charge is an air/fuel mixture. The piston may be formed with a combustion chamber which is rotationally symmetrical about the axis of the cylinder and is arranged to receive the whole of the compression volume at top dead centre of the piston.
Patent GB-1440505-A (GB)
Title: Process and apparatus for forming a resin vessel
IPC: B29C65/18
Filed: 1973-10-29
Abstract: 1440505 Sheet forming SEKISUI KASEIHIN KOGYO KK 29 Oct 1973 [7 Nov 1972] 50263/73 Heading B5A A plastics vessel, e.g. of foamed polystyrene, is formed on a fixed inner mould 6 by first applying a bottom blank of, e.g. thermoplastics or thermosetting resin, wood, metal or paper, to the mould 6 by means of a mould section 4, and then offering two side blank portions to the mould 6 by means of mould sections 11, which are moved down ramps 15, and then maintaining the blanks in the softened state until they are welded together. If necessary the edge portions can be welded by mould sections 17. The side blank portions are preformed in the mould sections 11 by plungers 12.
Patent GB-1059089-A (GB)
Title: Toilet soap composition
Inventor: MEGSON DAVID ROBERT
IPC: C11D9/00
Filed: 1964-12-10
Abstract: A toilet soap composition in which substantially all the fatty acid radicals are substantially saturated fatty acid radicals, at least 90% by weight of these substantially saturated fatty acid radicals containing from 10-18 carbon atoms, the weight ratio of C10-14 fatty acid radicals to C16-18 fatty acid radicals being from 0.4: 1 to 1.1: 1, the fatty acid radicals being partially saponified as mixed sodium and potassium soaps, the ratio of sodium to potassium expressed as a weight ratio of sodium hydroxide to potassium hydroxide being from 10: 1 to 2: 1, the amount of saponified fatty acid radicals being such that the toilet soap composition contains from 8-20% of free fatty acids; the toilet soap composition also containing from 5-12% of water and from 0.3-3% of sodium chloride.  Optional additives include wetting agents, anti-foaming agents and perfumes.