baber/WOPTO huggingface dataset:
Patent GB-618274-A (GB)
Title: Improvements in or relating to navigation aiding radio systems
IPC: G01S1/02
Filed: 1946-08-21
Abstract: 618,274. Radio navigation. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Aug. 21, 1946, No. 24971. Convention date, Dec. 13, 1938. [Class 40. (vii)] A course-defining radio beacon in which energy is radiated omnidirectionally from a central antenna and also in a figure of eight radiation pattern from two antennae spaced on either side of the central antenna and fed in phase opposition so that the energy radiated in the second pattern is substantially zero along the course and in which one of the radiating systems is inverted in phase in dot-dash signal rhythm has the energy radiated over the figure of eight pattern deeply modulated and the non- directional radiation modulated at the same frequency, but to a relatively small depth, the carrier wave being relatively larger in amplitude. A mathematical proof is given showing that such an arrangement gives the narrowest course (assuming that differences in sound amplitude of less than 7.5 per cent cannot be discerned for the sake of example) and it is shown that adjusting the depth of the weakly modulated radiation alters the effective width of the beacon axis. It is also shown that the beacon is less subject to masking due to the demodulation effect produced by unwanted signals.
Patent GB-1376042-A (GB)
Title: Braking systems
IPC: G01P15/02
Filed: 1972-05-30
Abstract: 1376042 Accelerometers G K N TRANSMISSIONS Ltd 23 May 1973 [30 May 1972] 25170/72 Heading G1J [Also in Division F2]  An accelerometer for use in a vehicle anti-skid braking system (see Division F2) comprises a flywheel 19 mounted on a rotatable drive shaft 12 for angular and axial movement relative thereto, with co-operating cams 15, 21 secured to the shaft 12 and the fly-wheel 19 respectively and urged together by a spring 33 such that relative rotation between the shaft 12 and the flywheel 19 causes the cams to displace the flywheel axially relative to the shaft, and fluid damping means to damp said relative axial movement. The cam member 21, which is screw-threaded in a bore 20 of the flywheel 19 and locked against rotation relative thereto by a grub screw 24, is slidable on the shaft 12. The fluid damping means comprises a cylinder 4 in the flywheel 19 in which is movable a piston 27 on the shaft 12, bores 29, 30 with a restriction 31 connecting the two sides of the piston so that fluid filling the cylinder 4 can be forced from one side of the piston to the other as the flywheel moves axially on the shaft 12. The shaft 12 is screw-threaded into a bore 5 in a shaft 6 of the vehicle transmission so that the shaft 12 and flywheel 19 and cantilevered from the shaft 6. The shaft 12 has a hexagonal abutment 14 near its mid point. When the flywheel is moved axially on the shaft 12, due to deceleration of the shaft  because of skidding of a vehicle wheel, it actuates a switch 32 controlling a solenoid valve in the vehicle braking system. The shaft 12 is aligned fore and aft in the vehicle so that inertia forces in direction A on the flywheel add to the spring 33 force opposing movement of the flywheel towards the switch 32.
Patent GB-1134708-A (GB)
Title: Automatic machinery for the baking of confectionery which requires to be "turned-over" in the process of baking
Inventor: CAPEWELL HORACE
IPC: A21B5/02
Filed: 1966-06-07
Abstract: 1,134,708. Endless conveyers. JOHN PELKMAN ENG. CO. Ltd. 10 July, 1967 [7 June, 1966; 10 May, 1967], Nos. 25215/66 and 21709/67. Heading B8A. [Also in Division A2] In the baking of both sides of goods 12 (e.g. pancakes, oatcakes, drop scones and potato cakes) the goods 12 are deposited on hot plate conveyer 10 above gas burners 11, cooked on one side and scooped up by scoop plates 15 on oscillating shaft 14 or 27, the shaft is rotated through 180‹ such that the goods are turned over and deposited uncooked side downwards on conveyer 10, and the goods are further baked and then passed via a cooling conveyer to a packing station. The oscillating shaft may have a jerk or jump imparted thereto during the turning over of the goods to evenly deposit the goods on the plates 15. The plates 15 have a stopper bar 152 to prevent the goods slipping from the plates 15. In one embodiment (Fig. 5) shaft 27 is rotatably mounted on standards 261 and comprises a section 27b carrying the plates 15 and a section 27a the sections normally being held together by a spring loaded clutch mechanism 271, 272. Section 27a has a sprocket 29 around which is a chain 30 one end of which is connected to spring 301 and the other end to quadrant 31 mounted on shaft 32. An arm 33 is mounted on shaft 32 and carries a roller 331 engaging rotatable cam 34. To turn over the goods the rotating cam 34 acting through roller 331, arm 33, quadrant 31 and chain 30 rotates the shaft 27 which is subsequently returned to its original position by spring 301. Shaft section 27b may be disengaged from the cam mechanism by disengaging the clutch mechanism. In another embodiment shaft 14 is rotated through a rack and pinion gearing. The turning over means may be used with the apparatus described in Specification 894,448.
Patent GB-1425537-A (GB)
Title: Coolant supply arrangement for an electrical device
IPC: H01L39/04
Filed: 1974-06-06
Abstract: 1425537 Concentric-tube heat exchangers; refrigerating SIEMENS AG 6 June 1974 [22 June 1973] 25254/74 Headings F4H and F4S In an arrangement in which a cryogenic coolant such as liquid helium is supplied through a tube 8 to an electrical device 23 having high voltage conductors requiring a low temperature coolant, the coolant tube 8 is encircled by a fluid-cooled radiation shield 12, the whole being enclosed in a vacuum vessel 10, and the cooling medium flow through the radiation shield comprising at least one outward flow generally parallel to the coolant flow through the tube 8, and at least one return flow in the opposite direction. The vessel 10 may be a "sealed" vacuum vessel or it may be a vessel connected to an evacuation source, e.g. via a connection 11. As shown, the radiation shield comprises a concentric-tube assembly providing therein flow and return paths 13, 17, respectively, for a cooling medium such as liquid nitrogen or liquid hydrogen. The radiation shield is spaced from both the tube 8 and the wall of the vessel 10 by members 21 shaped as shown. The tube 8 and/or the radiation shield 12 and/or the vessel 10 are made preferably of an electrically insulating material such as glass (e.g. molybdenum lead glass), quartz, a ceramic material, or a suitable plastics material. 7 and 22 are bellows type expansion compensators. The delivery pressure of the coolant passing to the device 23 via the tube 8 may be generated by a pressure bottle 3 and/or by a pump 24.
Patent GB-274316-A (GB)
Title: Improved manufacture of converter bottoms
IPC: B28B13/02
Filed: 1926-10-11
Abstract: 274,316. Schmidt, J. Oct. 11, 1926. Moulding converter bottoms.- Relates to processes for the manufacture of converter bottoms, in which the moulding mass such as dolomite is compacted in the mould by shaking and is then burnt, the mould having a needle plate carrying a number of vertical needles. According to the invention, the needles, which are made of combustible material, are detachably mounted on the needle plate and remain in the compacted bottom for the burning. As shown in Fig. 1, the needle plate a carries a number of tubular sockets c into which the needles e are inserted, the needles being supported at the top by a grid k. The sockets c project through holes in a burning bottom b. After the compacting of the mass, the mould f and burning bottom b are lifted from the needle plate a, the needles e becoming detached from the plate and remaining in the mass for the burning. In a modification, Fig. 3, a separate pattern needle is dispensed with, the needles e being inserted in plugs m in holes in the burning plate b. A heavy heated cover v, Fig. 9, may be placed loosely on the mass in the mould to assist in the compacting operation. The needles e may be formed with longitudinal grooves e<1>, Fig. 8, and surrounded by a combustible sleeve, or they may be slotted tubes encased in paper or the like.
Patent GB-355943-A (GB)
Title: Improvements in ships' hatch covers
IPC: B63B19/14
Filed: 1930-08-25
Abstract: 355,943. Ships' hatch covers. COCKS, H., 142, Bute Street, Cardiff. Aug. 25, 1930, No. 25328. [Class 113 (i).] Sbips' hatch cover sections are proteoted by shoes 3 which are flush with and entirely cover the ends. The sections may comprise two or more aligned boards connected by the shoes.
Patent GB-511232-A (GB)
Title: Mechanical toy vehicle in the form of a tricycle
IPC: A63H17/21
Filed: 1938-08-30
Abstract: 511,232. Mechanical toys. ARNOLD, C. Aug. 30, 1938, No. 25355. [Class 132 (iii)] A mechanical toy vehicle in the form of a tricycle with a figure is characterised in that the turning movement of the handlebar and therefore of the front wheel is effected by the arms of the figure which with this object in view ,are in connection with a shifting mechanism. A clock work motor drives an eccentrically mounted cam disc v which lifts and releases a spring controlled guide bar f, a hook k of which engages a crank n to rotate an axle l through a small angle. One upper arm o of the figure is fixed to the axle l and thus turning the handlebar s 'through the lower arm q. The other upper arm p is loosely rotatable on the axle l. The cam v causes the vehicle to swerve first to one side and then to the other. The legs 2, 3 are connected to cranks 4, 5 to simulate pedalling.
Patent GB-208589-A (GB)
Title: Improved means for cleaning, scaling, chipping or brushing surfaces
IPC: B08B7/02
Filed: 1922-09-19
Abstract: 208,589. Wright, W. B. Sept. 19, 1922. Cleaning externally.- A device for cleaning surfaces comprises a member g mounted in bearings and rotated by power, the tool being provided with projections g for chipping the surface. The member g is enclosed in a casing a and is pressed to the work by springs f located in the guide ways c acting on bearings g the shaft c. The casing is provided with guide extensions k, m, the latter being provided with a roller m<1> the position of which may be adjusted by a screw m<1>. In a modification the springs f are threaded upon guide rods which project through holes in the upper part of the cylindrical casing and are united by a yoke piece. In another form, the spring-controlled rotary member is provided with an eccentric head g<2>, Fig. 6, which co-operates with the head of a spring-controlled, reciprocating percussive tool p.
Patent GB-1453673-A (GB)
Title: Process for preparing halo-fusaric acid amide derivatives
IPC: C07D213/86
Filed: 1974-06-07
Abstract: 1453673 Halo-fusaramides BANYU PHARMACEUTICAL CO Ltd and HIROYOSHI HIDAKA 7 June 1974 25423/74 Addition to 1353838 Heading C2C Compounds I in which X is hydrogen or halogen, Y is halogen (X and Y being identical when halogen), R 1  and R 2  are hydrogen, C 2-4  alkyl, cycloalkyl, hydroxyalkyl aralkyl or optionally substituted phenyl and in addition one may be optionally substituted amino or NR 1 R 2  represents an optionally substituted heterocyclic ring are prepared by reacting the corresponding halo-fusaric acid or the halide, anhydride or ester thereof with an amine HNR 1 R 2 . Amines used are ammonia, morpholine, piperidine, piperazine and hydrazine. Compounds I are useful in the treatment of hypertension and form with a carrier or diluent a pharmaceutical composition which may be administered orally or intravenously.
Patent GB-954495-A (GB)
Title: Fluid flow control valve
IPC: F16K5/20
Filed: 1960-07-21
Abstract: 954,495. Valves. HILLS-McCANNA CO. July 21, 1960 [July 31, 1959], No. 25508/60. Heading F2V. The casing 12, Fig. 1, of a rotary spherical valve has a central chamber 14 into which open the passages 16, 18; the chamber houses the spherical closure 20 that co-operates with annular seats 22, 24 slidably supported on surfaces 26, 28 around the inner end of passages 16, 18, respectively, which surfaces converge with an apex angle of 10 degrees. The automatically-adjustable seats are made from a yieldable material substance subject to cold flow, e.g. P.T.F.E.; the latter may be encircled by a metal band. Optimum pressure contact of the seats within the closure is effected by a spring 42 encased in a material resistant to chemical action of the fluid, and disposed around the lower part of the operating stem 62, which urges the closure 20 and seats 22, 24 toward the converging ends of the surfaces 26, 28. The median annular segment of each seat is formed with a small bead 43, Fig. 7, which provides immediate sealing upon assembly. The bore 44, Fig. 1, through the closure 20 is eccentric to closure diameter 50, Fig. 4, being machined on a centre 54 which at the closure periphery is displaced from the diameter 50 towards the converging ends of surfaces 26, 28 by a distance 56 which is a function of the angle of divergence of the surfaces 26, 28. Upon removing a casing cover 64, Fig. 1, the seats and closure may be inspected and/or directly removed ; the stem 62 which passes through the cover 64 has two parallel flat parts which engage a throw plate 80 that co-operates with two pins on the cover 64 to limit movement of the stem to 90 degrees. An operating handle 86 is secured by a nut to the stem 62. Stem packings 92, 98 are compressed upon tightening the nut, whilst an arrow on the end of the stem indicates the position of the closure.
Patent GB-157553-A (GB)
Title: Improvements in or relating to lawn-mowers
IPC: A01D34/42
Filed: 1919-10-17
Abstract: 157,553. Jerram, A. E. Oct. 17, 1919. Lawn-mowers.-The side-frames 10, 11 of a lawn-mower are provided with coaxial recesses for self-aligning ball-bearings 14, 15, the recesses being closed by threaded caps 16, 17. A spindle 18 extends through the tubular hub 19 on which the rotary blades are mounted, and at one end, which is mounted in the bearing 14, is thickened to form a tapered shoulder 23 against which the internally tapered end of the hub bears. A bush 21 fits on the other end of the spindle 18 and is provided with a tapered shoulder to engage an internal taper on the corresponding end of the tubular hub, being held up against the shoulder by a nut 22 screwed on to the projecting end of the spindle. The bush rotates in the bearing 15 and carries a sprocket wheel by which the cutters are driven. The bush, spindle, and hub aresplined to secure a positive driving-connection. To detach the cutter for grinding, the caps 16, 17 are removed and the nut 22 detached. The spindle 18 can then be withdrawn, permitting the cutter to fall out.
Patent GB-162230-A (GB)
Title: Improvements in automatically operated variable speed gear
IPC: F16H33/08
Filed: 1920-09-04
Abstract: 162,230. Savary, A. Sept. 4, 1920. Variable-speed gearing comprises masses M, M<1>, Figs. 1 and 2, sliding upon diametral rods B, B' secured to a driving-member P. The masses M, M' bear upon eccentric rings G, G' secured to a driven shaft R, and by centrifugal force and inertia cause the shaft R to be driven at a speed which varies automatically with the load. In a modification shown in Figs. 5 and 7 masses 8 slides in radial slots in arms 7 secured to the driving-shaft 5. The driven element 6 carries discs 1 with eccentric recesses engaged by the masses 8.
Patent GB-235448-A (GB)
Title: Improvement in electrical condensers for ignition circuits
IPC: H01G4/224
Filed: 1924-10-27
Abstract: 235,448. Dubilier Condenser Co. (1921), Ltd., (Dubilier, W.). Oct. 27, 1924. Condensers, particularly for magnetos for internal - combustion engines, comprise a core or stack made up of alternate layers of imperforate conducting and insulating material and a casing to enclose the cone, the construction of the casing being such that the core can be disposed in or removed from the casing without taking the casing apart. The metal plate 1 has a stem 2 for attachment to the magneto and is secured to an insulating top plate 3 by rivets 4 - - 6, the rivet 5 also securing a side plate 7 which is secured to an insulating base plate 8 by rivets. Opposite the plate 7 is a plate 11 also riveted tn the plates 3, 8, the rivets in all cases being flush with the inner surfaces of the plates 3, 8. The plates 7, 11 respectively carry lugs 17, 16 for securing the connecting leads. The condenser core comprises layers arranged in sections 18, 20, layers of one polarity being connected to a side plate or terminal 21 and layers of opposite polarity to terminal plate 22. Terminals 21, 22 are soldered to the plates 7, 11, preferably by boring the latter at 23, 24 and filling the holes with solder. By melting the solder the core can be slipped out of the housing without taking it down. The plate 11 may be cut or stamped to provide a fixing lug 25.
Patent GB-407340-A (GB)
Title: Improvements in or relating to valve devices for automatically controlling the flow of gas in pipes
IPC: G07F15/00
Filed: 1932-09-14
Abstract: 407,340. Safety cut-off valves. EVANS, G. M., Charter Street, Archdeacon Lane, Leicester. Sept. 14, 1932, No. 25573. [Class 135.] In a safety cut-off device, particularly for use with prepayment meters, and comprising a valve which closes on failure of the gas pressure, but which although held open by the normal gas pressure cannot be opened thereby on its restoration until re-set by hand, a weight which normally partly counterbalances the weight of the valve falls over and drives the valve, consisting of a conical cap, firmly on to a conical nozzle forming the seat. In Fig. 1 the device is shown mounted on a cock 4 for controlling the supply of gas to a burner connected at 3. The valve 8 when raised permits gas to pass from the nozzle 6 to a recess 7 and thence, when the cock 4 has been rotated by a handle 16 after turning-on a pilot jet 13<a>, by a passage 9 to the burner. In either position of the cock 4, normal gas pressure will raise the valve 8 when a weight 21 pivoted at 22 is in the position shown in Fig. 6, wherein it presses on the outer end of a lever 18, pivoted at 19 and connected to the valve. On failure of the gas supply, the valve 8 descends by gravity, rotating anticlockwise the weight 21 which finally falls over to the other side of the pivot 19 of the lever 18, delivering a hammer-blow on the valve and holding it closed against the gas pressure when restored. Manual means for opening the valve in these circumstances comprise a carrier 30, Fig. 3, rotatable on the front casing 25 by a knob 27 and carrying an arm 32 with counterbalance 35, eccentrically pivoted in a slot 31. Rotation of the knob 27 clockwise as seen in Fig. 1, by means of engaging lugs 34, 24 carries the weight 21 into engagement with the roller 20 of the lever 18, opening the valve ; the lug 34 then escapes from lug 24, so that the valve only remains open however, if the pressure at 2 is sufficient. The knob 27 and carrier 30 may be returned by a spring. In the fully open position the valve 8 seats by a flange 8<a> against the part 11, a groove in the flange allowing a small amount of gas to pass.
Patent GB-1201515-A (GB)
Title: Method of preparing organotin compounds
IPC: C07F7/22
Filed: 1968-05-29
Abstract: 1,201,515. Organotin compounds. INSTYTUT PRZEMYSLU ORGANICZNEGO. 29 May, 1968 [30 May, 1967], No. 25604/68. Heading C2J. Organotin compounds of the general formulµ where R<SP>1</SP> is an alkyl radical having more than two carbon atoms, an aryl radical or an aralkyl radical, n=2 or 3, Z are the same or different radicals of an aromatic or aliphatic monocarboxylic acid and Y is the radical of an aromatic or aliphatic dicarboxylic acid, are prepared by reacting together an alkali metal salt of a mono- or di-carboxylic acid and a di- or tri-alkyl, aryl or aralkyl tin halide in water. The reaction may be effected in the presence of a surface-active agent. Examples describe the preparation of dibenzyltin dicaproate, dibenzyltin dilaurate, dibenzyltin stearate, tribenzyltin acetate, dibenzyltin benzoate, dibenzyltin adipate, dibenzyltin sebacate, dibutyltin adipate, dibutyltin dicaprylate, dibutyltin dilaurate and dioctyltin dibenzoate.
Patent GB-817378-A (GB)
Title: Improvements in or relating to the manufacture of electrical components
Inventor: BAKER PETER DONALD
IPC: H01L35/08
Filed: 1956-08-22
Abstract: 817,378. Semi-conductor devices. GENERAL ELECTRIC CO. Ltd. Aug. 22, 1957 [Aug. 22, 1956], No. 25641/56. Drawings to Specification. Class 37. [Also in Group XXIII] In a method of manufacturing a plurality of similar electrical components, each comprising a semi-conductor element having terminals constituted by opposed metallic blocks, a layer of semi-conductor material is interposed between two metallic blocks which are bonded to opposite faces of the layer and the composite structure so formed is divided into the said components by slicing the layer and blocks in planes at right angles to the layer. The blocks may be of aluminium or copper and may be bonded to the semi-conductor layer by soldering or by interposing a layer of indium and cold pressing. The semi-conductor material may be interposed between the blocks in powdered form and sintered in situ. The composite structure may be divided into a number of similar rod-shaped elements of rectangular cross-section by means of a cutting apparatus, Fig. 2, not shown, comprising wires loaded with diamond dust. The electrical components thus formed may be incorporated into a thermoelectric cooling unit such as that described in Specification 817,076, [Group XIII].
Patent GB-1381569-A (GB)
Title: Gas operated gun
IPC: F41B11/26
Filed: 1973-05-30
Abstract: 1381569 Gas-operated gun VICTOR COMPTOMETER CORP 30 May 1973 [16 June 1972] 25731/73 Heading F3C The disclosure is substantially identical with that in Specification 1,381,584, but the claims differ.
Patent GB-1449752-A (GB)
Title: Keto-dioxolanes and their use as photosensitizers for ethyleni cally unsaturated monomeric esters
IPC: C09D11/10
Filed: 1974-06-11
Abstract: 1449752 Laminates SUN CHEMICAL CORP 11 June 1974 [11 June 1973] 25809/74 Heading B5N [Also in Divisions G2C C2C and C3P] Example 10 describes the preparation of a laminate from a film of polymer-coated cellophane and a film of oriented polypropylene with a photopolymerizable adhesive between the two comprising a mixture of trimethylolethane dimethacrylate and 2-trichloromethyl-4-benzoyl- 4-phenyl-1,3-dioxolane. Example 11 describes the preparation of similar laminates with each of the following substrates: SARAN (Trade Mark)-coated cellophane and SARAN-coated cellophane, corona-discharge surface-treated polyethylene and coated cellophane, and polyvinylidene dichloride-coated polypropylene and MYLAR (Trade Mark).
Patent GB-535694-A (GB)
Title: Improvements in or relating to reflectors for electric lamps and the like
IPC: F21V7/04
Filed: 1939-09-14
Abstract: 535,694. Reflectors. DOWNER, G. V. Sept. 14, 1939. No. 25840. [Class 75 (ii)] A reflector, for use with an electric or other lamp of any size within a given range, comprises a reflecting skirt portion 6 and a plurality of stepped co-axial zones 1, 2, 3 each designed to co-operate with a lamp of one standardized size, the reflector being fixed relative to the lamp, so that the desired distribution of light will always be obtained, without focussing or adjustment, with any size of lamp within the given range. The reflector may be made of aluminium, steel or plastics, and each stepped reflecting zone may be curved or formed from two or more inclined surfaces of rectilinear crosssection. The reflector may have a neck portion 4 with a flange 5 to rest on the shoulder of the lamp; alternatively the neck portion may support the lamp holder. In plan the reflector may be circular or rectangular ; or it may be trough-shaped with the stepped zones along the sides and/or ends of the trough.