baber/WOPTO huggingface dataset:
Patent GB-865172-A (GB)
Title: Improvements in or relating to recording devices
IPC: G01P1/12
Filed: 1959-08-18
Abstract: 865,172. Recording-apparatus; speedometers. SERVICE RECORDER CO. Aug. 18, 1959 [March 6, 1959], No. 28198/59. Classes 106 (3) and 106 (4). In speed recording-apparatus a stylus 6 is caused to mark a trace 68 on a disc 58 in accordance with the speed of an input shaft 16 through a flyweight assembly 33, 34 driven by the shaft 16 through a clutch which allows slipping at a predetermined torque, the pressure between the two parts of the clutch being responsive at least in part to the speed of rotation of the assembly 33, 34. The flyweight assembly is centrally supported by a short sleeve 25 held in frictional contact with a collar 26 fixed on the shaft 16 by a spring 24 inserted between the top of a worm gear 21 fixed to the shaft 16 and a collar 23 fixed to a long sleeve 22 between the worm 21 and sleeve 25. As the speed of the shaft 16 increases, the centrifugal force acting on the flyweights causes the collar 34 to compress a spring 35 and so increase the friction between the collar 26 and sleeve 25. A sudden change of speed causes slipping which soon dies out as the flyweights adapt themselves to the new speed. The arm 41 carrying the stylus 6 is linked to the collar 34 by a pivoted lever 36 which carries four spring arms 71 co-operating at different speeds with adjustable fixed contacts 73, one of which is preselected by a push-button 86 to light a lamp 84 when its particular associated speed is attained. The selector assembly 83 may be connected to the recorder by a cable 79 or it may be plugged directly into the recorder. A stylus 5 linked to an inertia weight 12 records rest or motion by fine or broad traces 66, 67. A stylus 7 oscillated by a cam 50 driven through reduction gear-box 51 by the worm 21 provides a record from which revolutions may be counted. The record disc is also punctured each time the case is opened or closed by a device actuated by the lug 60 when engaged by a catch. Specification 404,154 is referred to.
Patent GB-752767-A (GB)
Title: Improvements in dust-laden air-filters
IPC: B01D46/04
Filed: 1954-09-30
Abstract: 752,767. Air filters. JUNKMANN, H. Sept. 30, 1954, No. 28227/54. Class 8(2). Clean air issuing from vertical opentopped outward flow filter hoses 11 provided with a reciprocating reverse-jet cleaning devices 10 and suspended from an apertured plate 2 within a casing 1, having a dust-laden air inlet 4 is collected and discharged from a chamber 8 below the lower ends of the hoses. Tubes 6 of less diameter than the hoses 11 connect the lower end of the latter with a common dust 7 outlet 7
Patent GB-1357373-A (GB)
Title: Photographic shutter
IPC: G03B17/42
Filed: 1971-06-16
Abstract: 1357373 Photographic camera shutters EASTMAN KODAK CO 16 June 1971 [16 June 1970] 28266/71 Heading G2A A photographic shutter comprises a first shutter member 4 which runs down to uncover a shutter aperture 16, a second shutter member 14 which runs down to cover the shutter aperture, a first control switch S 1  which brings an exposure control or regulating circuit to a state of readiness, a second control switch S 2  which initiates a timing function of the circuit to permit an electromagnet to release the second shutter member, and a bell-crank lever 5 having one arm 5b resting against an impact member 6 for driving the first shutter member so that upon release of the impact member the bell-crank lever is rotated under the action of a spring 11 acting directly thereon and a second arm 5a thereof actuates the second control switch. Actuation of shutter release 8 frees impact member 6 from lug 8b to strike lug 4a of shutter member 4 which moves to uncover aperture 16 and is held by detent 12. Subsequently blade 14 is released to close aperture 16, strikes arm 12a so as to release shutter member 4. Both blades are returned to their initial positions under action of spring 11.
Patent GB-1169839-A (GB)
Title: Improvements in Railway Track Lifting Machines
Inventor: MARTYN PETER HENRY
IPC: E01B29/04
Filed: 1968-06-14
Abstract: 1,169,839. Railway track lifting apparatus. GREENSIDE HYDRAULICS Ltd. 14 June, 1968, No. 28289/68. Heading E1G. A manually-propelled track lifter having four rail-running wheels 6 outrigged from a pair of transverse frame members 1 has a self-contained power unit 10 supplying a pair of vertical rams 4 for engaging the ballast 24, and a floating horizontal ram and cylinder 12-13 linked to a pair of bell crank rail hooks 16. The pivot pins 14 of the ram and cylinder 12-13 engage guides 17 in the frame members 1. A pair of pivotally-retractable road wheels 26 are provided. During transit the rams 4 and hooks 16 are raised and locked by inserting pins through aligned apertures 20.
Patent GB-684123-A (GB)
Title: Improvements in or relating to the manufacture of crystal contact devices
IPC: H01L21/48
Filed: 1950-11-20
Abstract: 684,123. Semi-conductor amplifiers. GENERAL ELECTRIC CO., Ltd., JAMES, E. G., and LINDELL, O. E. Sept. 24, 1951 [Nov. 20, 1950], No. 28328/50. Addition to 666,916. Class 40 (iv). A method of manufacturing a crystal contact device of the type claimed in the parent Specification comprises the steps of mounting a thin metal plate 4 on a support member 1, and shearing the plate across the central portion to provide two contact members which are then bent so that the straight edges of the contact members adapted to engage the crystalline element are a predetermined distance apart. Fig. 3 shows the contact members 10, 11 bent upwards to provide the spacing, while in Fig. 5 the spacing is produced by crimping the contact members. The shearing may be effected by the use of two L-shaped tools, one of which is placed in recess 2 and the other, which is placed above the metal plate 4, is assisted by a guide member. The crimping may also be produced by means of two tool members similarly placed.
Patent GB-850628-A (GB)
Title: Improvements in or relating to magnetic mass spectrometers for separating ionized particles
Inventor: BRUCK HENRI
IPC: H01J49/20
Filed: 1957-05-27
Abstract: 850,628. Mass separators. COMMISSARIAT A L'ENERGIE ATOMIQUE. May 27, 1957 [May 30, 1956], No. 28387/59. Divided out of 850,627. Class 39(1). [Also in Group XXXV] An 180 degrees magnetic mass separator is provided with correcting windings 25, 26 on the pole-faces in order to correct for coma aberration. A formula is given relating the distribution of the conductors to the radius of the mean orbit of the particles and the law of variation of the magnetic field with radius. An inner set of correcting windings 23, 24 are used for correcting for errors in the focal distance as described in Specification 850,627. Each set of correcting windings is in two groups on either side of the cylindrical surface passing through the mean orbit Ro and has two groups of return conductors. The coma correcting windings 25, 26 have return groups 34, 36 and 35, 37 and the focal distance correcting windings 23, 24 return groups 30, 32 and 31, 33. Each correcting winding may be embedded in a plastic sheath. In a mass separator with an alternating gradient, as described in Specification 799,870, the coma correcting and focal distance correcting windings may be disposed on separate sections of the magnet.
Patent GB-883658-A (GB)
Title: Tubes for drying and ventilating hay, corn and similar materials
IPC: F26B9/10
Filed: 1956-09-17
Abstract: 883,658. Drying apparatus. MARTINI, P. A. Dec. 10, 1957 [Sept. 17, 1956], No. 28417/56. Class 34(2) [Also in Group XXI] Hay stacks &c. are dried and/or ventilated by passing air to or from them through a perforated tube r formed with a spiral thread s by which the insertion of the tube into the stacks is facilitated by screwing. The screwing is effected through a cross-piece q having a crank k and a grip sleeve sch on the tube. A hose c connects to a blower or suction unit g. A thermometer may be arranged within the tube and a thermostat may be provided to enable automatic functioning of the unit g.
Patent GB-627860-A (GB)
Title: Improvements relating to the gravity separation of solid materials
IPC: B03B5/44
Filed: 1946-09-23
Abstract: 627,860. Separating solid materials. VOGEL, W. Sept. 23, 1946, No. 28422. [Class 117] Solid materials are separated according to their densities by feeding them together with a stream of a finely divided solid medium at one end of a channel, maintaining the medium in a fluid state by imparting a transverse oscillatory movement to at least one of the side walls of the channel relative to the base thereof to give the particles a relative movement transverse to that of the flow, and dividing the flow at the other end of the channel into upper, intermediate and lower layers containing materials of low, intermediate and high density respectively. As shown in Fig. 1, a trough a is divided longitudinally into a number of narrow channels by partitions l, Fig. 2, hinged at m to the floor and oscillated by an eccentric n. At the outlet end of the channel the partitions and side walls are gradually reduced in height, so that the layers of the stream containing the different fractions overflow at different points on to a broad transverse conveyer o. The walls may alternatively be made of flexible material and moved progressively along their length or they may form an angle with one another and be oscillated independently. The separating medium may be formed by fine particles of the material to be separated (e.g., coal dust) but in this case an intermediate fraction may have to be re-processed to give a high degree of separation. A belt or other conveyer may be provided for advancing the stream of material through the channel. The separation at the output end of the channel may be achieved by vanes which project into the stream and divide it into layers which are separately discharged.
Patent GB-844688-A (GB)
Title: Improvements in or relating to the excitation of alternators
Inventor: BADER GUNTHER
IPC: H02K19/30
Filed: 1956-09-18
Abstract: 844,688. Alternators; transformers. FIMAG FINSTERWALDER MASCHINEN G.m.b.H. Sept. 18, 1956, No. 28498/56. Classes 35 and 38 (2). A single or polyphase alternator having an output winding 6 and a rotating pole-wheel 10 is compound by means of a current transformer 5 consisting of a slotted stator core member 8 carrying the primary windings 3 and the secondary windings 4 in the same slots, the flux circuit being completed by a plain core 7 rotating with the alternator shaft and carrying a permanent magnet 11 for initiating the excitation. The secondary winding 4 comprises a tapped ring winding connected at suitable angular positions in series with a special " voltage '' component winding 2 on the stator of the alternator to the field rectifiers 9. The rotating core 7 may carry damping windings for single-phase operation, and it may be axially displaceable for adjustment of the degree of compounding.
Patent GB-227244-A (GB)
Title: Improvements in or relating to furniture and like castors
IPC: B60B33/08
Filed: 1923-11-13
Abstract: 227,244. Hargreaves, J., and Pickles, J. W. Nov. 13, 1923. Castors.-Antifriction balls b are mounted in an annular groove a<1> in the end of a cuplike casing a adapted to be partly inserted in an opening in the article to which the castor is to be applied, and bear on a larger ball c which is retained by inwardly turning the bottom edge a<2> of the casing. A central depending flattened protuberance a<3> is formed between the balls band is clear of the ball c. An attachment plate d with screw holes is provided near the lower edge of the casing; the inturned lower edge may be bevelled. Reference has been directed by the Comptroller to Specifications 3507/96, 5465/99, and 7242/02.
Patent GB-1487808-A (GB)
Title: Solar cells
IPC: H01L31/06
Filed: 1975-07-07
Abstract: 1487808 Semi-conductor devices NATIONAL AERONAUTICS & SPACE ADMINISTRATION 7 July 1975 [5 Aug 1974] 28556/75 Heading H1K A photovoltaic cell 10, sensitive to solar radiation, comprises a Schottky barrier formed by a semi-transparent layer of metal 14 and a layer of a wide band gap semi-conductor 12 carried on a further layer of a narrow band gap semi-conductor 16. Electrical connections are made to layer 14 via a grid 18, and to layer 14 via a heavily doped semi-conductor layer 20 on a contact layer 19. Suitable materials for the layer 14 are Au, Pt and Pd. Layer 12 may consist of Al x Ga 1-x As or GaAs 1-x P x , where x is chosen to give a band gap of 2 to 2À1 eV. The layer 16 may consist of GaAs, having a band gap of 1À4 eV. The semi-conductor layers are grown epitaxially. An antireflection coating 26 may be applied to the surface of the cell on such light 25 is incident.
Patent GB-1321807-A (GB)
Title: Diamond compacts
Inventor: CAVENEY R J
IPC: B01J3/06
Filed: 1971-06-18
Abstract: 1321807 Abrasive products DE BEERS INDUSTRIAL DIAMOND DIVISION Ltd 18 June 1971 [24 June 1970] 28624/71 Heading C4V Compacts comprise graphite-free diamond particles having a continuous coating of titanium and molybdenum held in a matrix of metal compatible with the coating metal. The term "compatible" means that the matrix must be such as to allow diffusion of the titanium or molybdenum into it i.e. alloy formation. Suitable metal matrices are listed including Fi/Co/Cr/Fe : 34/18/14/5, Fe/Ni : 12/15, and Fe/Fi : 63/2. The titanium or molybdenum coating may be of the order of 1000-2000 Š thick. It may be applied by vacuum deposition. The matrix may also be tungsten carbide bonded with a transition metal of the Group VIII, such as cobalt.
Patent GB-798790-A (GB)
Title: Improvements in or relating to apparatus for translating vertical float movements instorage tanks into rotary movements of a level indicating instrument
IPC: G01F23/44
Filed: 1956-09-19
Abstract: 798,790. Indicating and regulating liquid levels. HOYER, N. P. Sept. 19, 1956 [Sept. 24, 1955], No. 28654/56. Class 123(1) A liquid level indicating device especially for large storage tanks for petrol &c. comprises an endless flexible, perforated band 2 passing over pulley wheels 3, 4 located respectively at the top and bottom of the tank 10, a float 1 being secured in one run of the band so that movement of the liquid level causes the float to rise or fall and the band to rotate the wheels. The wheel 3 is supported by a lever 7 having a counterbalance 5 which is adjusted to give the required tension in the band 2, the rotary movements of the wheel 3 thus being independent of any movement of the tank top due to thermal expansion of the tank or deformation thereof by internal pressure. The rotary movement of the wheel 3 is transmitted by a shaft 8 and magnetic coupling 13, 13<SP>1</SP>, to a counting train 14 having electrical contacts the closing cf which by the movement of the train causes appropriate lamps to light on a remote panel 18 to indicate the level in the tank. A selector 16 on the panel 18 enables the latter to be used for a number of different tanks. The tank supply and discharge valves can be opened or closed and audible or visual signals actuated by causing relay circuits to be completed when a predetermined level has been reached, Fig. 3 (not shown).
Patent GB-688943-A (GB)
Title: Improvements in or relating to wheel sets for rail vehicles
IPC: B60B37/04
Filed: 1950-11-23
Abstract: 688,943. Force fits. BOCHUMER VEREIN FUR GUSSSTAHLFABRIKATION AKT.- GES. Nov. 23, 1950 [Nov. 23, 1949; June 14, 1950], No. 28680/50. Class 83 (iv). In a wheel set for rail vehicles a layer of a material having anti-friction properties, such as tin or polyvinyl resin products, is provided between the nave bore and nave slot. The intermediate layer is in the form of a thin sleeve and may extend only over a distance L of about 30 mm. from the inner nave edge, the nave 2 being a force fit on the axle 1. In a modification, the axle and nave are joined together at their outer ends by a welded seam, the force fit then being dispensed with and the intermediate layer acting as a soldered connection.
Patent GB-671489-A (GB)
Title: Thread holder for weft replenishing loom
IPC: D03D45/50
Filed: 1949-11-09
Abstract: 671,489. Automatic bobbin changing looms. CROMPTON & KNOWLES LOOM WORKS. Nov. 9, 1949 [May 17, 1949], No. 28694/49. Class 142(iii) On replenishment, a pneumatic thread holder H is moved backward (as shown in broken line) so as to hold the weft in line with the shuttle S during picking to ensure threading; before the shuttle completes its flight, the holder is moved forward to draw the weft under a centre weft fork. Instead of providing a flexible pipe P, the holder H and thread collector C may both be moved. Specifications 503,063 and 507,872 are referred to.
Patent GB-159275-A (GB)
Title: Improvements in or relating to screw and like propellers for aircraft
IPC: B64C27/54
Filed: 1919-11-19
Abstract: 159,275. Pateras Pescara, Raul, Marquis of. Nov. 19, 1919. Screw propellers on a vertical shaft for helicopter aircraft have blades which are adjusted for pitch or incidence by a vertically slidable cam operatively connected with blades. The boss 1 has radial sockets 19 which carry the spindles 8 of the blades 9. The inner end of the spindle 8 is threaded and engages a nut G, which is constrained from rotation but can be moved axially by the roller 4, this effecting rotation of the spindle and blade. Axial movement of the roller does not take place when the cam 3 is stationary, but is produced when the cam 3 is itself axially moved to a new position on the propeller shaft 2, axis by helical pinions 15 engaging a screw-thread 14 on the cam.
Patent GB-504291-A (GB)
Title: Hydrogenation of monovinylacetylene
IPC: C07C5/09
Filed: 1937-10-22
Abstract: 504,291. Catalytic hydrogenation of monovinylacetylene. I. G. FARBEN. INDUSTRIE AKT.-GES. Oct. 22, 1937, No. 28912. Convention date, Oct. 22, 1936. [Class 1 (i)] Monovinylacetylene is continuously hydrogenated in pre ence of water or an aqueous solution of an organic compound by means of a catalyst applied to a solid, shaped carrier. Particularly suitable aqueous media are those having a high solvent power for monovinylacetylene but a low one for butadiene such as solutions of alcohol , carboxylic acids, dioxane, ketones, &c. The catalyst may be a noble metal applied to balls of clay or pieces of pumice, and the reaction is preferably effected in a trickling tower According to an example, a yield of 80 per cent of butadiene and 20 per cent of butylene is obtained. Specification 474,234 is referred to.
Patent GB-802487-A (GB)
Title: A process for the production of yeast
IPC: C12N1/16
Filed: 1955-10-12
Abstract: Torula (Torulopsis) utilis is cultivated on a substrate of molasses waste liquors from the production of citric acid having specific gravities of 1.03 to 1.075 and containing sugars and/or nutrient organic non-sugars, vigorous aeration with finely divided air being employed.  As substrates, liquors of specific gravities 1.03 to 1.045 and sugar contents 1.0 to 2.5 per cent, or of specific gravities 1.04 to 1.075 and sugar contents 0 to 1 per cent and containing a sufficient proportion of organic non-sugar nutrient are especially suitable.  According to an example, 3.75 1. waste molasses liquor containing 4.2 per cent reducing sugars and of specific gravity 1.072 is acidified to pH 4.5, ammonium sulphate, diammonium phosphate and superphosphate are added and the liquid is boiled with aeration for 20-30 minutes.  After replacing the water lost by evaporation, filtering and making up to 7.5 l., the solution had a specific gravity of 1.034 and sugar content of 2.1 per cent.  Fermentation was started with 1.5 l. and an inoculum of 50 g. adapted seed yeast Torula utilis at 28 DEG  C. Further quantities of solution were added from time to time, the maximum influx being reached after 4 1/2 hours, the temperature raised to about 31 DEG  C. and the air rate increased from 300 l./hr. at the start to 750 l./hr. at the maximum influx. During the further course of fermentation the influx was decreased and within the ninth hour the temperature was reduced to 28 DEG  C. A total of 550 g. yeast (25 per cent dry matter) was obtained.
Patent GB-1207938-A (GB)
Title: Thrust reverser
Inventor: HORNE VICTOR JOHN
IPC: F02K1/72
Filed: 1969-06-09
Abstract: 1,207,938. Thrust reversers. ROLLS-ROYCE Ltd. 9 June, 1969, No. 29132/69. Heading B7G. A thrust reverser for a gas turbine engine comprises a plurality of angularly spaced apart thrust reverser flap members 25 movable between a thrust reversal position (indicated in broken outline) in which they block the fan duct and force the fan air to pass out through an apertured portion 22 of the outer casing 12 through guide vanes 24, and a forward thrust position in which they permit the fan air to flow through the fan duct and block the apertured portion 22. Each of the flap members 25 has a leading part 26 and a trailing part 27 which are pivotally connected at a hinge 30. The trailing edges of the parts 27 are mounted on pivots 31 carried by the downstream portion 21 of the outer casing 12, and the leading edges of the parts 26 are connected at pivots 32 to links 33 extending radially inwards from a sleeve member 34 through slots in beams 23 or between closely adjacent beams 23, which beams interconnect the upstream and downstream portions 20, 21 of the outer casing 12. The sleeve member 34 is movable axially of the outer casing 12 between forward thrust and thrust reversal positions (shown in full lines and broken lines, respectively) in which, respectively, the apertured portion 22 is closed and opened to the flow of fan air. The movement of the thrust reverser members 25 and the sleeve member 34 is effected simultaneously by means of hydraulic or pneumatic rams 35 (only one shown) connected to the links 33. The leading and trailing parts 26, 27 of the members 25 are parallelogrammatic in shape and are formed with steps so that overlapping of these parts occurs in the thrust reversal position to prevent the passage of fan air between the members 25. Passage of the fan air between the members 25 when in the forward thrust position is also prevented by overlap between adjacent leading and trailing parts 26, 27.