baber/WOPTO huggingface dataset:
Patent GB-819542-A (GB)
Title: Battery separator and process of making the same
IPC: D21H17/48
Filed: 1956-12-19
Abstract: 819,542. Separators for electric accumulators. EVANS PRODUCTS CO. Dec. 19, 1956 [Dec. 27, 1955], No. 38664/56. Class 96. A separator, for an electric accumulator, which contains lignocellulose, is made by digesting, e.g. Douglas fir, pine, cedar, hemlock, wood waste, bagasse, corn stalks, or straw in an alkali metal hydroxide solution, e.g. a 2 per cent solution of sodium hydroxide, at a temperature of 180-212 F., separating, thoroughly washing, pulping, forming a porous web, embossing, e.g. to a ribbed form, impregnating with an " A " stage phenol-aldehyde resin, drying and curing. A wetting-agent, e.g. a dioctyl ester of sodium sulphosuccinic acid may be sprayed on to the web immediately after wet felting. The separators may be 0.025 to 0.045 inches thick and may contain 5 to 40 per cent of resin, the proportion of resin being higher at the ribs &c. so that the thickness is greater thereat. Other resins may be of cresol, or xylenol, &c., condensed with formaldehyde, acetaldehyde or furfural &c.
Patent GB-1419118-A (GB)
Title: Ultrasonic testing
IPC: F15D1/02
Filed: 1972-08-18
Abstract: 1419118 Nozzles BRITISH STEEL CORP 14 Aug 1973 [18 Aug 1972] 38701/72 Heading B2F [Also in Division H4] An ultrasonic probe includes a housing in the form of a sleeve 20 having a coupling fluid inlet 6, an exponentially shaped outlet 30 and situated therebetween a diffuser in the form of cylinder 10 having holes 12 therein and designed to equalise liquid pressure across the housing section and a means 18 in the form of a plurality of cylindrical tubes for producing a laminar flow towards the outlet 30. The ultrasonic transducer 14, fixed to the end of the cylindrical diffuser, is designed to transmit ultrasonic waves along a coupling liquid jet e.g. a water jet, onto a test object e.g. steel during the hot rolling thereof, and to receive therefrom a reflected ultrasonic wave. In place of a single transducer 14, two transducers may be provided, one for transmitting and one for receiving. Reference has been directed by the comptroller to Specification 1341005.
Patent GB-1086997-A (GB)
Title: Methods and apparatus for assembling apertured members such as gaskets
IPC: F16J15/06
Filed: 1965-09-13
Abstract: 1,086,997. Drifts. FELT PRODUCTS MFG., CO. Sept. 13, 1965 [Sept. 14, 1964], No. 38933/65. Heading B3U. [Also in Divisions E2 and F2] A member for aligning and retaining a gasket to an automobile engine component, such as a valve cover or sump to facilitate assembly, comprises a prong 19 made of compressible resilent material such as rubber. The prong has a wedge-shaped portion 20, a portion 23 of increased width, two wings 24 and a tapered section 21. In use, Fig. 5, the gasket 15 is positioned on the component and a prong is inserted through each hole 16 in the gasket and through the corresponding hole in the component. The end 20 of the prong is first inserted in the hole and it is pushed in until the wings 24 engage the surface of the gasket. The component and the gasket are then assembled to the mating component and the tapered sections 21 locate the parts correctly. The prongs can then be removed one at a time and replaced by the clamping bolts. The prongs are removed by pulling on the ends 20 so that the wings 24 fold against a recessed portion 27 of the tapered section 21 as they are pulled through the hole. The prong shown in Fig. 4 is designed for use in a hole of a particular diameter, a modified prong for use with holes within a range of diameters has an enlarged centre section (32), Fig. 7 (not shown), and a central slot (34) which allows the section (32) to collapse as the prong is pushed into a hole having a small diameter. The prongs may be formed integrally with the gasket, Figs. 8 and 13 (not shown). Each prong (35) having a tapered free end (39) and a wedge-shaped portion (40) by which it is attached to the gasket. Two parallel slits (41) and a transverse slit (44) define a central tongue (43) which is attached to the prong only at its outer end. A slot (45) formed across the base of the prong accommodates a lip on the component and provides a line of weakening between the prong and the component along which the prong may be torn from the gasket after use. In use the gasket is laid on the component 13, Fig. 9, the prongs are bent round and the end 40 is pushed through the aligned holes in the component and gasket. The projecting part of the prong is then used to align the assembly with the mating component. The prongs are then withdrawn one by one by pulling on the tongues 43 and the permanent fastenings are inserted.
Patent GB-334814-A (GB)
IPC: H01B11/00
Filed: 1929-12-20
Abstract: 334,814. Siemens - Schuckertwerke Akt.-Ges. Jan. 8, 1929, [Convention date]. Addition to 804,799. Cables with conductive shields. - In a long distance communication cable of the type described in the parent Specification in which similar conductors are formed into bundles which are stranded to form a main cable, the bundles are now provided with a metal coating of lead, lead alloys, tinfoil bands, or metal coated paper bands. The main cable is covered with a water-tight covering of lead, lead alloys, rubber or guttapercha. As shown in Fig. 1, the cable consists of stranded bundles a, b, c, each having a lead sheath d. The bundles have different numbers and sizes of wires. An iron sheath e surrounds the cable. In Fig. 2, wires of like type are each combined in two bundles g, g<1>, f, f<1>, similar bundles being arranged opposite to each other in the cable. Each bundle is wound with tinfoil h, and, on stranding, shaping rolls press the bundles so that the main cable has a circular section. A lead coating i surrounds the main cable. In Fig. 3, bundles k - - n, each having separate numbers and sizes of wires, are each covered with metallized paper p, and, on stranding, are altered in shape so that the main cable has a circular section. A lead coating q covers the main cable.
Patent GB-1046608-A (GB)
Title: Cyclic acetals and ketals and their preparation
Inventor: WADDAN DHAFIR YUSUF
Filed: 1965-09-14
Abstract: The invention comprises 5,5-dimethyl-2-propyl-1, 3-dioxan and a general process for making cyclic acetals and ketals by heating a glycol with an aldehyde or ketone in the presence of a catalyst comprising one or more of the metals rhodium, iridium, palladium or platinum on a carbon support.  Specified glycols include 1,2-, 1,3- and 1,4-aliphatic and alicyclic glycols, which may bear substituent groups, e.g. alkoxy and aryl radicals.  Specified aldehydes and ketones include the aliphatic and aromatic carbonyl compounds and those bearing halogens and hydroxy substituents. 2-(51,51-Dialkyl - 11,31 - dioxan - 21 - yl) - 2,2 - dialkylethanols can be made by heating 2,2-dialkylpropane-1 3-diol with a 2,2-dialkyl-3-hydroxypropan-1-al in the presence of the above catalysts, the 2,2-dialkyl-3-hydroxypropan-1-al being prepared in situ by heating the 2,2-dialkylpropane-1,3-diol in the presence of said catalysts. The process can be effected at normal or superatmospheric pressure, preferably at temperatures of 50-250 DEG C. and optionally in the presence of a solvent.  Examples relate to the preparation of 5,5 - dimethyl - 2 - propyl - 1,3 - dioxan, 2 - tribromomethyl - 1,3 - dioxolan, cyclohexane - spiro - 21 - (11, 31 - dioxolan), and 2 - (51, 51 - dimethyl - 11, 31 - dioxan - 21 - yl) - 2 - methylpropan-1-ol.
Patent GB-836549-A (GB)
Title: Magnetic head arrangement
IPC: G01D5/20
Filed: 1958-12-04
Abstract: 836,549. Magnetic recording and reproducing heads. HUGHES AIRCRAFT CO. Dec. 4, 1958 [Jan. 2, 1958], No. 39174/58. Class 40 (2). A magnetic head is provided with two core legs facing a magnetizable medium and has one leg having a very small dimension compared to the other in the relative direction of travel of the medium such that flux changes produce flux density variations substantially only at the face of the thinner leg. The.head comprises a device for detecting incremental displacements and is used in conjunction with a magnetic scale 12 providing discrete steps of displacement established by laterally-disposed grooves 50. The complete head 10, Fig. 1, comprises two transformer circuits 14, 16, Fig. 4, the secondary winding of circuit 14 and the primary winding of circuit 16 comprising single turns 24, 26, respectively, Fig. 2, linking a centre core leg 22 comprising adjacent limbs of two U-shaped members clamped between ferrite core sections 18, 20, Fig. 3, which form poles substantially wider than the central core leg 22. An external generator 54 is connected to the primary winding of the input circuit 14 and as the grooves of the magnetic scale 12 pass across the pole 22 changes in reluctance produce detector signals in the secondary circuit 16.
Patent GB-1184267-A (GB)
Title: Improvements in or relating to Programme-Controlled Data Exchange Sytems
IPC: H04L12/52
Filed: 1968-08-16
Abstract: 1,184,267. Digital transmission systems; automatic exchange systems. SIEMENS A.G. 16 Aug., 1968 [17 Aug., 1967], No. 39186/68. Headings H4K and H4P. A programme-controlled exchange has a transmission control unit UeSt, which transmits data to and receives data from feeders TS, and an operation control unit BeSt, which processes the programmes. The exchange includes stores Sp and UeSp connected as shown, the store UeSp being used for establishing connections for feeders (e.g. for P.C.M. speech channels) having transmission speeds high relative to those of other subscribers. When a low-speed subscriber calls, the feeder address is stored in UeSt and a cycle of store Sp requisitioned. The feeder-addressed call of store Sp being empty when a connection is to be set up, a signal register allocation programme demand is made on unit PrASt, and when a store Sp cycle is again available the feeder address and programme number are pased to a programme section of store Sp. Subsequently, BeSt reads the programme data from Sp and the programme starts. The signal register address is fed to the addressed feeder call in store Sp. When a high-speed subscriber calls, unit UeSt reads the call in store UeSp allotted to the feeder, giving the feeder address. The signal register allocation programme demand is set in PrASt and the programme selected and started as described above. The signal register address and feeder address in Sp are read out to UeSt, and UeSt writes the signal register address in the feeder-addressed call in VeSp. Dialling pulses are fed to the signal register.
Patent GB-812780-A (GB)
Title: Process for preparing alkene nitriles
Filed: 1956-12-27
Abstract: Unsaturated aliphatic nitriles are obtained by the vapour phase reaction at 250-450 DEG , preferably about 350-400 DEG  C., of a lactam with a molar excess of ammonia over a dehydration catalyst which is acidic in water.  The ammonia may be present in amounts of 5 to 15 mols. per mol. of lactam.  The dehydration catalyst, e.g. acid-treated clay, boron phosphate, or phosphoric acid on a carrier such as kieselguhr, fuller's earth or silica, is preferably used in the form of irregular lumps with a mean diameter of 5-6 mm.  The vapour is passed through the catalyst mass.  The pressure is about atmospheric, and may be from about 0.5 atm. to 1.5 atm., i.e. sufficient to draw or force the vapour through the catalyst.  In an example caprolactam is 91.8 per cent converted to a mixture of 91 per cent 5-cyano pentene-1, 8 per cent aminocapronitrile and 1 per cent high-boiling residue.  The nitrile reaction product is purified by distillation.  Suitable lactams mentioned as starting materials are caprylolactam, 2-pyrrolidene, valerolactam and oenantholactam, giving respectively 7-cyanoheptene-1,3-cyano - propene - 1,4 - cyano - butene - 1 and 6-cyano-hexene-1.
Patent GB-1184309-A (GB)
Title: Arrangement for Use in White Light Holography with Multimode Lasers
Inventor: RIECK HEINRICH
IPC: G03H1/26
Filed: 1968-08-19
Abstract: 1,184,309. Holography. AGFA-GEVAERT A.G. Aug.19, 1968 [Aug.19, 1967], No.39585/68. Heading G2C. Apparatus for white light holography comprises a multi-mode laser L producing a beam O which is split by a beam divider 5 into two components O 1  O 2  , one component undergoing an arbitrary but predetermined number of reflections, the other component beam undergoing a number of reflections differing from the one by an odd number, both componant beams, after travelling through substantially equal optical path lengths, being incident at one point in a selected region of a photographic plate P at substantially equal angles of incidence α to the plane of the plate. The arrangement preferably forms a light path quadrilateral which may be parallelogram, square or rectangle, with the partitionplane of the beam divider S and photographic plate P located at one end of and parallel to one diagonal and two reflectors R 1 , R 2  forming the ends of the other diagonal.
Patent GB-397008-A (GB)
Abstract: 397,008. Newspaper-racks. WEIBEL, J., 1, Schneidergasse, Toss, Winterthur, Switzerland. Dec. 30, 1932, No. 36901. [Classes 16 and 146 (i).] A rack for newspaper &c. holders comprises a back rail 1 secured to the wall and having elongated sockets 2 extending parallel to the wall and at an inclination to the longitudinal axis of the rail. The newspaper &c. holders Z when inserted in the sockets 2 allow the upper portions of the newspapers &c. to be freely visible. The rail 1 may be disposed on the wall in either a horizontal, an inclined, or a vertical position.
Patent GB-1069538-A (GB)
Title: A data transmission system
IPC: H04L7/06
Filed: 1964-09-30
Abstract: 1,069,538. Data transmission. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. Sept. 30, 1964 [Oct. 15, 1963], No. 39789/64. Heading H4P. In a data transmission system in which each block of data is preceded by a synchronizing signal, the synchronizing signal is regarded as comprising more than one character, the characters sharing some of the synchronizing bits. Upon recognition of a character the data receiver is enabled after a delay corresponding to the separation of the character from the data. After demodulation the received signals are read in to a shift register 2, which, in the embodiment illustrated, is shown containing the synchronizing signal. In this instance the synchronizing signal is regarded as three threebit characters which are detected by AND gates 6, 7, 8. The outputs of the gates are summed at 9 and a threshold device 10 gives an output which enables the data receiver if a preset threshold is attained.
Patent GB-1483739-A (GB)
Title: Manufacture of solid ammonium phosphate
IPC: C05B7/00
Filed: 1974-09-13
Abstract: 1483739 Ammonium phosphate SCOTTISH AGRICULTURAL INDUSTRIES Ltd 29 Aug 1975 [13 Sept 1974] 40002/74 Heading C1A In the production of ammonium phosphate having an N : P ratio of 0À95 to 1À05 by feeding wet process phosphoric acid and ammonia to an aqueous slurry of ammonium phosphate of N : P ratio 1À3 to 1À5 (formed by the ammoniation of wet process phosphoric acid) and removing an amount of slurry substantially equivalent to the amount formed and acidifying the slurry so removed, 20-80% of the latter is treated with the acid (e.g. H 3 PO 4  or H 2 SO 4  or their mixtures or partially ammoniated products), the remainder of the removed slurry is then added, and moisture is removed to obtain the solid product.
Patent GB-916700-A (GB)
Title: An improved device for the use of golfers
IPC: A63B69/00
Filed: 1960-11-23
Abstract: 916,700. Golf-practising appliances. CAMPBELL, J. Nov. 13, 1961 [Nov. 23, 1960], No. 40237/60. Class 132 (2). A device for use in controlling wrist movement when practising golf strokes comprises two members 10, 11 hinged together and provided with straps 13, 14 for attachment to the hand and wrist respectively. The member 10 has fixed thereto a bracket 18 carrying a roller 19 at its free end, whilst the member 11 supports a weight 16 slidable in guides 17 and integral with a pin 15. As the wrist is cocked during the upward swing of the stroke, the member 10 pivots relative to the member 11, against the action of spring 22, thereby swing- ing the roller 19 downwardly, and the weight 16 slides in the guides 17 until the roller 19 is trapped under the pin 15, movement of the pin being controlled by a guide roller 20 mounted on the member 11. A tongue 23 on member 10 engages in a recess in the underside of the weight 16 when the device is in its uncocked position, to prevent movement of the weight before the wrist is fully cocked. The device remains locked in its cocked position until the club approaches the foot of its swing, when the weight 16 is moved by centrifugal force away from the locked position to permit the wrist to uncock.
Patent GB-1260076-A (GB)
Title: Disposable food trays
IPC: A47G23/06
Filed: 1970-08-20
Abstract: 1,260,076. Trays. KOPPERS CO. Inc. Aug.20, 1970 [Aug. 20, 1969], No.40251/70. Heading A4A. A plastics tray, suitable for holding food, is divided into several compartments 54 by intersecting non-linear dividing walls 42, 56 extending between opposing portions of its rim 10. The rim comprises converging inner and outer walls joined by a flat top portion, the outer wall being stepped. The side portions of the dividing walls are also converging thus allowing a plurality of the trays to be stacked one on top of the other. A circular bead 70 is provided in one compartment to receive the bottom of a glass or cup. The portion of each dividing wall adjoining the rim is formed with a groove in which a thumb or finger may be placed when the tray is lifted. The tray is made of thermoplastic material, preferably polystyrene.
Patent GB-405987-A (GB)
Abstract: 405,987. Packing for stuffing-boxes, pistons, &c. TRIST, A. R., 56, Victoria Street, London. Aug. 11, 1932, No. 22527. [Classes 122 (i), 122 (iii), and 122 (v).] Packing composed of a textile material in a matrix of indiarubber is treated to make it resistant to oil, acid, alkali, &c. by immersion in a liquid mixture, one liquid of which has a softening effect on the indiarubber and the other being a solvent for the resistant with which it is desired to treat the packing. After a proper time for treatment the packing is removed and the liquids are evaporated, the packing being left impregnated with the resistant substance. Treatment with shellac is used for an oil-resisting packing, bitumen for acid resisting and casein for high temperature resisting. Cellulose and synthetic resins of the phenol class may also be used. Solvents and softeners may be benzol, methyl, acetone, amyl acetate, alcohol and ether, borax solution or ammonia. In some cases one liquid will act as both solvent and softener.
Patent GB-1035001-A (GB)
Title: Improvements in cleaning systems for milking installations
Inventor: KINGSTON JONAS ARTHUR COLLINS
Filed: 1961-11-15
Abstract: 1,035,001. Cleaning pipes. GASCOIGNES (READING) Ltd. Feb. 14, 1963 [Nov. 15. 1961], No. 40791/61. Heading F2N. [Also in Division A1] To facilitate cleaning of a milking installation having a vacuum line B and milk line E, a separate wash line F is provided having wash racks H on to which the teat cup clusters M are fitted. Cleaning solution from container T is pumped through the installation by pump S, the vacuum pump D being isolated by suitable switch means from the installation. The racks H may be as disclosed in Specification 1,035,004.
Patent GB-1245441-A (GB)
Title: Improvements in or relating to adders operating on variable fields within words
Inventor: HANSLIP TREVOR WILLIAM
IPC: G06F7/50
Filed: 1968-08-27
Abstract: 1,245,441. Parallel adder. INTERNATIONAL COMPUTERS Ltd. 18 Aug., 1969 [27 Aug., 1968], No. 40863/68. Heading G4A. A system is provided which uses a fixed length adder 10 for radix r to add fields which are each part of separate words and which has means for enabling carry out and carry in. Two word registers AR, BR hold binary words and a mask register MR defines the field of the words to be operated on such that the field of the word in register AR is passed to the adder with its bits unchanged and the bits outside the field reduced to zero in unit 12, and the equal lengthed field of the word in BR is passed to the adder with its bits unchanged and the bits outside the field changed to 1 in unit 11. The parallel full adder 10 adds the words, the bits outside the field being 1 and any carry in from unit Co, or carry out to unit Cn, is fed through these 1 bits by ripple. Alternatively, if the radix is 10, the bits outside the field are arranged to be 9 so carry ripple can occur. The result goes to register SR by way of unit 13 where any 1's outside the field are suppressed, and any carry goes to unit Cn. The unit 11 comprises AND/OR gates (Fig. 2, not shown), and can complement the field for subtraction. In an alternative embodiment a binary 1's generator feeds two OR gates, each gate being connected to a separate word register, and the gate outputs being connected to the adder. The generator is gated off while the fields are being read out. Shifting capability may be provided and signs assessed by examining the higher end of the field.
Patent GB-1341064-A (GB)
Title: Printing device
IPC: B41J1/34
Filed: 1971-09-02
Abstract: 1341064 Selective printing NATIONAL CASH REGISTER CO 2 Sept 1971 [14 Sept 1970] 40931/71 Heading B6F  An on-the-fly selective printer has three printing stations for producing three separate records of a transaction, each station comprising two print hammer mechanisms 28 associated with two type wheels 30. A slidably mounted carriage 25 supports the hammer mechanisms 28 and also engages the type wheels 30 mounted together on rods 42 and slidably supported on a continuously rotating type wheel drive-shaft 41, so that the typewheels and hammers move in unison. A cam-actuated drive mechanism mounted on a cam-shaft 65 engages a pin 85 on the carriage 25 with the bifurcated end 86 of a lever 83 to reciprocate the carriage. A solenoid 74 controls the engagement of a spring clutch 70 which drives a worm gear 63 for driving the cam-shaft 65. Once the clutch is engaged, it remains engaged for 360 degree rotation of the cam-shaft causing one complete reciprocation of the carriage 25. Hammer mechanism (Fig. 2).-Each hammer (36) is actuated by a solenoid (37) and returned with a spring (36). The position of its pivot point (29), and therefore the position of the hammer with respect to its associated type wheel is varied with an eccentric (34).
Patent GB-920848-A (GB)
Title: Improvements in or relating to the manufacture of non-woven fibrous structures
Inventor: FAIRFULL ANDREW EWAN SPOWART
IPC: D04H1/4258
Filed: 1960-11-30
Abstract: <PICT:0920848/IV(a)/1> <PICT:0920848/IV(a)/2> In apparatus for producing a non-woven fibrous fabric 22 having holes therein (see Group IX) a stream of fluid-borne fibres 19 is directed on to a continuously rotating, perforated drum 1 on a stationary spindle 2 and the web 22 so-formed is consolidated by air from a nozzle 23 or by suction through the perforations 8 and also by a vapour or liquid, e.g. water, which may include a bonding agent, from a spray 38 and is dried by hot air from a nozzle 25.  If the fibres are thermoplastic consolidation and bonding may be effected simultaneously by a hot fluid.  The fibres may be cotton, wool, glass, asbestos, viscose rayon, cellulose acetate, nylon, polyesters, polyethylene, polypropylene, polyvinyl chloride or a mixture of these fibres. After the web 22 has been stripped from the drum 1 it passes to a further bonding stage.  A viscose rayon web 22, Fig. 5, is impregnated with viscose while passing between rollers 31, passes over guide rollers 33 in a sulphuric acid bath 32 to regenerate cellulose, is squeezed by rolls 34 and passes through at least one further bath 35 to effect washing, purification, bleaching, dyeing or finishing.  The web is dried on heated rolls 36 and wound into a roll 37.