baber/WOPTO huggingface dataset:
Patent GB-412285-A (GB)
Title: Improvements in and relating to scanning devices, more particularly for use in television apparatus
IPC: H04N3/08
Filed: 1932-12-30
Abstract: 412,285. Television. NOBBS, W. J., 52, Chandos Road, Cricklewood, London. Dec. 30, 1932, No. 36821. [Class 40 (iii).] A mirror drum comprises two discs spaced apart on a common spindle and provided near their periphery with pairs of oppositely disposed recesses in which are mounted carrying members for the mirrors. Each carrying member has a spherical lower portion for engagement in the opposite recesses and a tapering collar with a flat upper surface on which the mirror is fixed by screws or by an adhesive. In an alternative construction, one of the discs is replaced by a recessed angle-piece clamped to a disc. The mirrors may be mounted so that their reflecting surfaces are directed towards the axis of the disc or discs to form a mirror ring for use with a moving light beam.
Patent GB-1253994-A (GB)
Title: Apparatus for detecting and/or measuring the width of strip material
Inventor: BURNS CHARLES
IPC: G01B11/04
Filed: 1968-08-01
Abstract: 1,253,994. Measuring width photoelectrically. BRITISH IRON & STEEL RESEARCH ASSOCIATION. July 30, 1969 [Aug. 1, 1968], No. 36841/68. Heading G1A. Apparatus for detecting and/or measuring the width of a strip of material comprises means to pass a beam of radiation past both edges of the material so as to be partially obstructed thereby and photo-electric means for detecting the resultant flux density, the path traversed by the beam including two objective lenses positioned on opposite sides of a central stop and two auxiliary lenses positioned with the stop at their focal points. As shown light from a lamp 11 passes through a diffuser 10 and a condenser lens 12 to provide a uniform intensity beam at one edge 13 of a moving strip 5 the width of which is being monitored. That portion of the beam that is not obstructed by this edge falls on a mask D1 in the form of an aperture having parallel edges at right angles to the edge of the strip. The attenuated beam passes through a lens 20, is reflected at a mirror 18 passes through a lens 14 and arrives as a collimated beam at a central stop 22. With the exception of a photo-cell 23 in place of the lamp 11 and diffuser 11 the apparatus is symmetrical about the central stop and the beam continues via lenses 15, 21 and 24, a mirror 19 and a mask D 2  to the photo-cell 23 after further obstruction by the other edge 17 of the strip. The width of the image and thus its flux is proportional to the difference between the distance between the axis of the lenses 20 and 21 and the width of the strip i.e. the output of the photo-cell is inversely proportional to the width of the strip. To cope with strips in slightly different width ranges the source unit 1 and components D1, 14, 18 and 20 may be moved in one direction and the detector unit 3 and components 15, 19 and 21 moved in the other direction. An alternative embodiment which can deal with strips in various width ranges is described. In this embodiment the mirrors 18 and 19 are large and intersect each other. By re-positioning all other path element the path length can be maintained constant.
Patent GB-869177-A (GB)
Title: An indexing device, particularly for incorporation in a chuck
IPC: B23B31/34
Filed: 1959-10-30
Abstract: 869,177. Chucks; indexing. BERTHOLD, L. Oct. 30, 1959 [Nov. 5, 1958], No. 36872/59. Class 83 (3). An indexing device incorporated in a lathe chuck comprises an indexing pin and a number of hydraulic piston and cylinder devices disposed at relative angles which are fractions of the total indexing angle the pistons being brought to bear in succession on the pin to effect indexing. When applied to a lathe chuck 1, Fig. 1, for indexing work 4 about a transverse axis without stopping the chuck rotation, one chuck jaw 15 is secured to the indexing pin 5 which is rotatable in the chuck body by means of the bevelled ends 10a, 11a, Fig. 2, of a pair of hydraulic pistons arranged at forty-five degrees. The pistons operate successively on a squared portion 5a, 5b of the indexing pin 5, each piston moving the pin through forty-five degrees. The second piston 11 remains in its extended position to clamp the pin during turning. The opposite jaw 14, Fig. 1, of the chuck is rotatable within a piston 12 which is used to clamp the work.
Patent GB-882816-A (GB)
Title: Improvements in and relating to air or gas blast electric circuit-breakers
Inventor: ROXBURGH ALBERT
IPC: H01H33/42
Filed: 1956-12-03
Abstract: 882,816. Gas-blast switches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. March 3, 1958 [Dec. 3, 1956], No.36924/56. Class 38 (5). The blast valves of a multibreak switch are mechanically interlinked so as to be operable by a common operating means. As shown, with six breaks (2a, 2a<SP>1</SP>, 2b, 2b<SP>1</SP>, 2c, 2c<SP>1</SP>) per phase there is a blast valve 5a, 5b, 5c for each pair of contact chambers; with an air reservoir 1 for each phase. The valves for each phase are operated by upward movement of arms 11, 13a on shafts 9 which are pivoted in bearings 10. The shafts 9 are coupled by arms 13b to a trip bar 15 which is moved to the right, to operated the valves, by a spring at 16 when released by a latching device 18. Isolator blades 8, 8<SP>1</SP> for each phase are carried by rotatable columns 7, 7<SP>1</SP> and are operated in a manner described in Specification 882,817. The blast valves may be of the character described in Specification 850,271.
Patent GB-958060-A (GB)
Title: Improvements in or relating to electric pulse rate indicators
Inventor: VOUSDEN JAMES BERNARD
IPC: G01R23/09
Filed: 1961-10-17
Abstract: 958,060. Transformers. S. SMITH & SONS (ENGLAND) Ltd. Oct. 12, 1962 [Oct. 17, 1961], No. 37275/61. Heading H1T. [Also in Division H3] A transformer for use in a tachometer for vehicle engines with electric ignition systems (see Division H3), comprises a magnetic core formed by a U-shaped part 21 secured within the tachometer housing 22 and a second U- shaped detachable part 23 held in position outside the housing by threaded member 26, a secondary winding 27 wound on part 21 and a primary winding formed of a single turn of ignition lead held within part 23 by an insulated member 29.
Patent GB-765382-A (GB)
Title: Binary trigger circuit
IPC: H03K3/286
Filed: 1954-12-24
Abstract: 765,382. Transistor two stable state circuit. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 21, 1954 [Dec. 31, 1953], No. 37381/54. Class 40(6) In a trigger circuit producing one output pulse for every other input pulse, a two stable state circuit 1 and blocking oscillator 2 are cross-coupled from the output of one to the input of the other so that the oscillator changes over the two stable state circuits on alternate input pulses. A resistor 15 between collector 1c and emitter 1e gives positive feed-back to a transistor of the type described in U.S.A. Specification 2,609,428, having a rectifying base contact. Assuming transistor 1 to be off, the low collector potential is effective over resistor 30 to bias off the emitter 2e of the blocking oscillator transistor 2. A positive pulse applied over blocking capacitor 24 is ineffective to trigger the oscillator 2 but is fed over capacitor 7 and biased diode 8 to raise the emitter potential and thus cause transistor 1 to pass to the on state. The rise in collector potential raises the emitter potential of transistor 2 so that the next pulse is effective to trigger the blocking oscillator. The output pulse from winding 26 is negative and is applied over diode 28 to reset transistor 1 in preparation for the next input pulse. Pulses at half the input frequency appear at terminals 32, 33 and a square wave at terminals 16, 17, Fig. 3 (not shown). In a modification, Fig. 2 (not shown) a conventional point contact transistor is employed in the two stable state circuit with a biased diode as load in the base circuit.
Patent GB-1382526-A (GB)
Title: Morpholine derivatives
IPC: A61K31/535
Filed: 1972-08-11
Abstract: 1382526 Morpholine derivatives IMPERIAL CHEMICAL INDUSTRIES Ltd 18 July 1973 [11 Aug 1972] 37550/72 Heading C2C [Also in Division A5] The invention comprises novel therapeutic compounds (I) (including salts thereof) wherein R<SP>1</SP> is hydrogen or an aryloxycarbonyl radical of up to 11 carbon atoms; R<SP>2</SP> is hydrogen or an alkyl radical of 1 to 6 carbon atoms; and R<SP>3</SP>, R<SP>4</SP> and R<SP>5</SP>, which may be the same or different, are hydrogen, halogen atoms, or alkyl or alkylthio radicals of 1 to 6 carbon atoms, halogenoalkyl radicals of 1 to 3 carbon atoms, alkoxy radicals of 1 to 10 carbon atoms, alkenyloxy or alkoxycarbonyl radicals of up to 6 carbon atoms, aroyl radicals of up to 11 carbon atoms or aryl, aryloxy or arylthio radicals of up to 10 carbon atoms. They are made by standard methods, e.g. using compounds corresponding to (I) where the N-atom of the morpholine ring is acylated or benzylated or where R 1  signifies acetyl.
Patent GB-900912-A (GB)
Title: Improvements relating to cathode-ray-tubes
Inventor: BERRIDGE GEORGE FREDERICK
IPC: C03C27/10
Filed: 1959-11-05
Abstract: 900,912. Devitrifiable frits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Oct. 24, 1960 [Nov. 5, 1959], No. 37589/59. Class 56. [Also in Group XL (a)]  The faceplate may be sealed to the frustoconical body portion of a cathode-ray tube by means of a devitrifiable frit comprising by weight 75-82% PbO, 7-14% ZnO, 6.5-12% B 2 O s , 1.5-3% Na 2 O and 0-3% A. 2 O 3 . The devitrifiable frit also comprises 5-7% AgO or 4.5-6% Ag, which renders the devitrified glass subsequently formed, by heating to about 450‹ C., of an electrically conducting nature. Reference has been directed by the Comptroller to Specification 822,272.
Patent GB-1589442-A (GB)
Title: Transistor amplifier having a high internal resistance
IPC: H03F1/38
Filed: 1977-09-08
Abstract: To raise the internal resistance of a transistor amplifier, a positive feedback from the collector to the base of the output transistor (4) is provided, and is preferably implemented as a current mirror circuit (22, 23). The main possible applications are drivers for filter circuits, and amplifiers at the end of a telephone line, e.g. speech amplifiers of telephones. <IMAGE>
Patent GB-1451512-A (GB)
Title: Process for the manufacture of pyrimidine derivatives
IPC: B01J23/00
Filed: 1974-08-29
Abstract: 1451512 Amino - pyrimidine derivatives CHEMIE GRUNENTHAL GmbH 29 Aug 1974 [29 Aug 1973] 37763/74 Heading C2C Compounds having the general formula wherein X 1  and X 2  are each C 1  to C 3  alkyl or together represent C 1  or C 2  alkylene, and R is hydrogen or C 1  to C 3  alkoxy, are prepared by heating a compound of formula or its hydrochloride, with phosphoryl chloride while passing into the reaction mixture a stream of dry hydrogen chloride to form the hydrochloride of the compound of formula which compound is then isolated in the form of the free base and subjected to hydrogenolysis in the presence of a palladium catalyst to form the compound of Formula I
Patent GB-1479280-A (GB)
Title: Heat exchanger and process for cooling hot gases
IPC: F28F9/02
Filed: 1974-08-29
Abstract: 1479280 Tubular heat exchangers; steam generators SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 29 Aug 1974 37802/74 Headings F4S and F4A A heat exchanger comprises an inlet chamber 1 for hot gases (e.g from 800‹ to 1500‹ C.) and a coolant chamber 2 in which the gases are cooled by a coolant as they flow through tubes 12 the gas inlet ends of which are joined to a convex tube plate 11 which separates the chambers 1 and 2 and is cooled by a separate flow of coolant flowing through a channel 14 defined by said plate 11 and a further plate 13. Uniform fluid distribution in the channel 14 is effected by means of a plate element in which are a plurality of orifices 21. Coolant flow to and from the channel 14 is by way of a central tube 18 and peripherally distributed tubes 19. The chamber 2 has an inlet 9 and an outlet 10 for coolant flowing. over the tubes. The coolant may be boiler feed water which is converted tinto high pressure steam. The convex shape of the plate 11 may alternatively protrude into the cooling chamber 2 instead of (as shown) into the gas inlet chamber 1. Preferred gas and coolant temperatures, pressures and pressure differentials are given in the Specification.
Patent GB-1066773-A (GB)
Title: Novel oxazole-carbamic acid esters and a process for the manufacture thereof
IPC: C07D263/48
Filed: 1964-09-18
Abstract: Novel compounds of formula <FORM:1066773/C2/1> wherein R1 is alkyl, R2 is alkyl, haloalkyl, aralkyl, or aryl, a 5- or 6-membered cycloalkyl group, a 6-membered aromatic heterocyclic ring containing one hetero atom, or an alkyl group which is substituted by a 5- or 6-membered aromatic heterocyclic ring containing one hetero atom, and R3 is alkyl, alkenyl, benzyl or halobenzyl, and wherein the bond shown as a broken line denotes that the group attached thereby is optional, and acid addition salts thereof, are prepared by reacting an oxazole-5-carboxylic acid azide, an oxazole-5-isocyanate, or the alkali metal salt of an oxazole-5-carboxylic acid haloamide with an alcohol of formula R2OH, with the application of heat when an azide is used, and, if desired, N-substituting the product with the substituent R3, and, if desired, converting the base obtained into an acid addition salt.  The oxazole-5-carboxylic acid azides may be prepared by reacting an oxazole-5-carboxylic acid or a lower alkyl ester thereof with hydrazine, and treating the oxazole-5-carboxylic acid hydrazide with nitrous acid.  The hydrazide may also be prepared by converting an oxazole-5-carboxylic acid to the acid chloride, and reacting the acid chloride with hydrazine.  The oxazole-5-carboxylic azide may also be prepared by treating an oxazole-5-carboxylic acid chloride with sodium azide. Oxazole-5-isocyanates are made by heating the corresponding azide in an inert solvent.  The oxazole-5-carboxylic acid haloamide salts are made by subjecting 5-carbamoyloxazoles, prepared, e.g. by reacting oxazole-5-carboxylic acid esters with ammonia, to the action of alkali and halogen. Therapeutic compositions having activity as monoamine oxidase inhibitors, and therefore useful as antidepressants, which may be administered orally or parenterally, contain as active ingredient a compound of Formula I above, or an acid addition salt thereof.
Patent GB-1162132-A (GB)
Title: Forward and Reverse Gears
Inventor: BILTON JOHN
IPC: B63H23/26
Filed: 1965-09-07
Abstract: 1,162,132. Reverse gearing. FLUIDRIVE ENG. CO. Ltd. 2 Sept., 1966 [7 Sept., 1965], No. 38224/65. Heading F2D. A reverse gear comprises a drive shaft 8 passing through aligned hollow shafts 9F, 9R, the inner ends of which carry bevel pinions 7F, 7R meshing with a single bevel wheel 6 at the end of a perpendicular driven shaft 1, scoop controlled hydraulic couplings F, R being mounted at the outer ends of the shafts 9 for connecting the appropriate drive pinion 7 to the output shaft 1. The couplings are carried by bearings 11, 12, 18 on the hollow shafts 9. The arrangement shown includes gearing for driving a liquid supply pump 31 for the couplings and a lubricating pump 37. Friction or electromagnetic clutches may be substituted for the hydraulic couplings.
Patent GB-1046170-A (GB)
Title: Substituted cyclic ethers and process for their preparation
IPC: C07D307/06
Filed: 1965-09-07
Abstract: Novel tetrahydro - 2,2 - dimethyl - 5 -(1-methyl-propenyl)-furan is produced in admixture with tetrahydro - 2,6,6 - trimethyl - 2-vinyl-pyran by cyclizing myrcenol or ocimenol or mixtures thereof in the presence of an acid catalyst, preferably aqueous or anhydrous hydrogen chloride present in a concentration of from 0.01% to 5% by weight, at a temperature of from 65 DEG  C. to about 110 DEG  C., optionally in the presence of an anti-oxidant and an inert atmosphere.  The products are conveniently separated, if desired, by vacuum distillation, and are useful as nuance additives for composing synthetic oils.
Patent GB-940021-A (GB)
Title: Improvements relating to automatic couplers for vehicles
Inventor: HOLLIS RICHARD JOHN
IPC: B61G3/18
Filed: 1959-11-11
Abstract: 940,021. Railway vehicle automatic couplings. DOWTY HYDRAULIC UNITS Ltd. Nov. 10, 1960 [Nov. 11, 1959], No. 38298/59. Heading B7T. An automatic coupler having gathering horns 12, 13 and engaging by inclined swing, comprises a pivoted spring loaded latch 15, a pivoted spring loaded pawl 22 which may be operated to both lock and push away the latch of a mating coupler, and a device which prevents mated couplers from re-locking once they have been unlocked. The pawl 22 is mounted on the end of a pivot pin 23, and the pin has a release lever 27 fastened thereto which mounts on its cap 29 an angularly spaced lug 32, and a forked finger 34 which is pressed against the lug by a spring 37 and rotates with the lever. From the mating position the couplers may be unlocked by a pull on each of their chains 28, each chain rotating a lever 27 and a locking pawl 22, but as a lever 27 rotates it carries with it its finger 34 which rides up a projection 42 on a stop 41 on the opposing coupler. As the finger 34 moves past the projection 42, the spring 37 snaps the finger into a position behind the projection as shown chain dotted in Fig. 2. Thus the couplers are released for uncoupling, but the pawls 22 may not return to their spring loaded locking positions until the couplers have been drawn apart. Specification 851,293 is referred to. Reference has been directed by the Comptroller to Specification 843,365.
Patent GB-304122-A (GB)
Title: Absorption refrigerating machine with neutral circulating gases
IPC: F25B15/10
Filed: 1928-12-29
Abstract: 304,122. Siemens - Schuckertwerke Akt-Ges. Jan. 14, 1928, [Convention date]. Refrigerating, absorption systems for. - In continuous-cycle condensing or non-condensing systems in which the condensed refrigerant or strong liquor respectively flow through the evaporator or cold generator in the same direction as an inert pressure-equalizing gas, the conduit conveying the liquid to the cold producer passes therethrough, to effect a cooling of the liquid. In a condensing system, a gas vent from the condenser is led to the gas exit at the bottom of the evaporator. The condensate may be used to cool and condense solvent vapour in the conduit conveying inert gas to the evaporator before being further cooled as above described, and in non-condensing systems heat exchange between strong and weak solutions may be effected. Specifications 251,251 and 279,898 are referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the following:- In a system comprising a heated generator 6, Fig. 2 (Cancelled), gas separator 9, condenser 21, evaporator 22 and absorber 23, the liquefied refrigerant from the condenser rises through a coiled pipe 27 within a widened portion 28 of the conduit 24 conveying the cold gas mixture to the absorber, and enters the evaporator at the top, where the inert gas from the absorber also enters. Any gas uncondensed in the condenser is separated at 25 and led by an inverted U-pipe 29 to a nozzle 26 in the gas mixture pipe 24, to assist the gas circulation. Cooling of the coil 27 is effected in part by the evaporation of surplus refrigerant from the evaporator. This subject-matter does not appear in the Specification as accepted.
Patent GB-1467368-A (GB)
Title: Automatic fire-control installation
IPC: A62C35/02
Filed: 1974-09-03
Abstract: 1467368 Fire control installation COMPAGNIE CENTRALE SICLI 3 Sept 1974 [7 Sept 1973] 38400/74 Heading A5A An automatic fire-control installation comprises an extinguishant reservoir 1, a main extinguishant delivery pipe 9 feeding a net work of pipes 6, detection and spray heads 7 containing fusible elements which in fire conditions melt and allow liquid to pass through, an aqueous liquid container 8, a vacuum operated release system 3 controlling, via mechanism 4, the valve on a cylinder 5 which contains propellant gas and a rupturable diaphragm 2 in pipe 9, wherein in the non-fire state the aqueous liquid fills tubes 6, 9 and container 8 but on melting of the elements the liquid flows out of heads 7 by gravity causing a reduced pressure at 3 which in response thereto opens cylinder 5, the propellant gas entering container 1 then forcing out the extinguishant through 2 (which ruptures under the pressure) and thence to heads 7. The container 8 communicates with the atmosphere .and the surface of the liquid therein is covered with a layer of oil to inhibit evaporation. If the fusible elements in 7 do not melt quickly enough a pressure is built up in pipes 6 and 9 said pressure being detected and the cylinder 5 opened by an auxiliary jack 10 (Fig. 3 not shown). The aqueous liquid is preferably a premix of water and an anti-freeze e.g. glycol.
Patent GB-1023585-A (GB)
Title: Apparatus for measuring rates of change of temperature
Inventor: MOORES HARRY
IPC: G21C17/10
Filed: 1961-10-26
Abstract: 1, 023, 585. Measuring electrically. ENGLISH ELECTRIC CO. Ltd. Oct. 25, 1962 [Oct. 26, 1961], No. 38439/61. Heading G1N. The rate of change of temperature of a nuclear fuel element is measured by providing two similar thermocouples on diametrically opposite sides of the element, one thermocouple being sheathed by an outer member, preferably of ceramic material, which increases its effective time constant, the thermocouples being connected differentially to an indicator. The output may also operate control gear, to adjust the control rods of a reactor.
Patent GB-1479030-A (GB)
Title: Hydraulic head for an injection pump
IPC: F02M59/48
Filed: 1974-09-04
Abstract: 1479030 Fuel injection pumps SIGMADIESEL 4 Sept 1974 [12 Sept 1973] 38732/74 Heading F1A In a fuel injection pump having a cylinder 2 provided with combined inlet and spill orifices 7, fuel which spills through the orifices 7 impinges on a split cylindrical ring 11 of resilient material such as hardened and tempered steel. Fuel leaving the orifices 7 escapes to low-pressure through orifices 10 in a sleeve 8 and apertures 13 provided in the ring 11 but axially spaced from the aligned orifices 7, 10. The ring is sprung into an annular groove 15 on the outer surface of the sleeve 8, the latter having a shoulder 8b against which the enlarged end 2a of the cylinder 2 is clamped by a delivery connector 3 containing a delivery valve 9 only the body of which is shown. To even out the erosion of the ring by the spilled fuel, the ring is free to rotate in the groove 15.
Patent GB-1477767-A (GB)
Title: Abrasive tools and method of making
IPC: B24D18/00
Filed: 1975-09-22
Abstract: 1477767 Moulding abrasive tools EDENVALE ENG WORKS (PTY) Ltd 22 Sept 1975 [23 Sept 1974] 38854/75 Heading B5A [Also in Division B3] The working portion of an abrasive tool is made by mixing acicular abrasive particles (preferably having a length : width ratio of at least 3 : 1) with starting materials for a bonding matrix, pouring the mixture into a mould, applying a force field to the mixture while it is being poured so as to align a substantial proportion of the particles with their long axes substantially normal to the face which will form the working surface of the tool, and causing the bonding matrix to set, at least partially, around the aligned particles. The particles are preferably diamond or cubic boron nitride, and the bonding matrix is preferably a resin. The applied field may be electrostatic, but is preferably magnetic, in which case the abrasive particles, if non- magnetic, must first be coated with a magnetic metal, preferably nickel.