baber/WOPTO huggingface dataset:
Patent GB-1372439-A (GB)
Title: Non blocking polypropylene film and its preparation
IPC: C08L23/10
Filed: 1972-09-07
Abstract: 1372439 Polypropylene laminates TOYO BOSEKI KK 7 Sept 1972 41614/72 Heading B5N [Also in Division C3] Non-blocking polypropylene film laminates are prepared by laminating to at least one face of a polypropylene film a film of a composition of polypropylene and 0À01 to 1% by weight of the polypropylene of finely dispersed thermoplastic resin of particle size 0À1 to 10 microns having a melting point no higher than 100‹ C. above that of the polypropylene and being incompatible with the polypropylene. The films may be treated on at least one surface by corona discharge and then laminated, e.g. by simultaneous extrusion and then pressing on a cooling drum, by extruding the composition on to preformed polypropylene film or by uniting preformed films, prior to stretching in at least one direction. The thermoplastic resin may be polycaprolactam, polyhexamethylene adipamide or sebacamide, polyethylene terephthalate or terephthalate/isophthalate, polytetramethylene or poly-1,4-hexamethylenedimethylene terephthalate, polyethylene oxy benzoate, poly - m - xylylene adipamide or m - xylylene ammonium adipate/-#-caprolactam copolymer, and the compositions may also contain anionic, cationic, non-ionic or amphoteric antistatic agents. Examples describe the preparation of biaxially stretched laminates formed by (5 and 6) extruding polypropylene on to films of polypropylene / polycaprolactam composition and optionally (7) laminating a further composition film to the polypropylene film, the outer surface of the composition film being corona treated.
Patent GB-1425775-A (GB)
Title: Lock nut
IPC: F16B39/30
Filed: 1973-09-04
Abstract: 1425775 Lock nuts MICRODOT Inc 4 Sept 1973 41633/73 Heading F2H A lock nut 10 comprises a body 12 having a through-bore 14 which is provided with a plurality of equally circumferentially spaced, radially outwardly extending grooves 26, land sections 30 having threads thereon being defined between adjacent grooves. The grooves 26 which are arcuate in section extend radially outwardly at least as far as the root of the thread defined by the lands 30 and are radially aligned with alternate corners 24. The nut which may be of metal is, in use, threaded on to a bolt or the like having a thread similar to that of the nut but with a pitch diameter greater than that of the nut so as to provide an interference fit between the threads on the nut and bolt.
Patent GB-1443236-A (GB)
Title: Disc brakes for vehicles
IPC: F16D55/14
Filed: 1973-09-05
Abstract: 1443236 Full-face disc brakes GIRLING Ltd 3 Sept 1974 [5 Sept 1973] 41684/73 Heading F2E In a full-face disc brake of the kind in which application of the brake is effected by limited rotation of pressure plates 1, 2 angularly in opposite directions so that they are urged apart by balls located in co-operating inclined recesses therein, the pressure plates thereby urging brake discs 3, 4, into contact with respective axiallyspaced radial surfaces (not shown) of a stationary housing, at least one pressure plate 1 has its abutment lug 7 (provided for engagement with a known stop abutment 8) made of greater thickness in an axial direction than the remainder of the plate; its thickness is at least equal to the sum of the axial thicknesses of the friction linings on one of the brake discs 3 or 4 so that the lug remains in alignment with the stop abutment 8 throughout the working life of the linings. As shown, stop abutment 8 is an adjustable bolt.
Patent GB-1060025-A (GB)
Title: Improved method of forming tunnelling junctions in intermetallic semiconductor material
IPC: H01L29/00
Filed: 1965-10-01
Abstract: 1,060,025. Semi-conductor devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. Oct. 1, 1965 [Oct. 7, 1964], No. 41711/65. Heading H1K. A tunnel junction is produced by alloying an impurity into the surface of a body of a degenerately doped intermetallic compound for at least forty minutes. A plurality of tunnel diodes are produced from a wafer (10) of P-type GaAs doped to degeneracy with Zn by covering the surface with a layer (11) of SiO 2 , which may be covered with a thin film of glass, etching a pattern of small and large apertures (12) and (13) using a photo-masking technique and depositing a film (14), (15) of Ag or Au on the walls of each aperture (12), (13) by evaporation in vacuum using a molybdenum mask with apertures aligned with those in layer (11), Figs. 1 to 3 (not shown). The wafer may then be dippad in a flux and pre-heated on a hotplate before immersing it in a bath of molten material comprising an impurity such as Sn, Se, Te, or S, saturated with a carrier metal such as In, Au, or Ag. Alternatively the bath may be of pure Sn. The molten metal adheres to films (14), (15) and fills apertures (12), (13). The wafer is removed from the bath and the metal filling apertures (12), (13) is alloyed to wafer (10) to form tunnel junctions (32), (31) by heating in an atmosphere of nitrogen at 480 C. for about 60 minutes, during the last 3 to 5 minutes of which the temperature is raised, Figs. 5 and 7 (not shown). The wafer is cooled by a stream of nitrogen at an initial rate of 10 C. per second until 300 C. is reached after which the rate of cooling is reduced. The metal filling apertures 12, 13 is removed by etching and Au is evaporated into the apertures to provide ohmic contacts to recrystallized regions 34, 33 and to provide terminals 36, 35 on top of layer 11, Fig. 8. The wafer is heated for an empirically determined time at 400 C. causing diffusion of the impurities which broadens the junction and reduces the value of the peak current. The wafer is ultrasonically cut into separate devices comprising one of each of the large and small junctions 31, 32 and their associated terminals 35, 36 and each device is further heated to produce the desired peak current value. The devices produced actually comprise two back-toback tunnel junctions but the larger junction 31 is operated in the reverse direction and due to its large leakage current constitutes a low resistance contact to wafer 10. The invention stabilizes the operating characteristic of the device against changes with time when operated beyond the valley current.
Patent GB-1273030-A (GB)
Title: Sensitive photographic materials
Inventor: SALESIN EUGENE DENNIS
IPC: G03C1/34
Filed: 1969-08-21
Abstract: 1,273,030. Silver halide materials. EASTMAN KODAK CO. Aug. 21, 1969 [Aug. 23, 1968], No. 41792/69. Heading G2C. High contrast (e.g. lith) photographic materials comprise (a) a support, (b) a silver halide emulsion in which at least 50 mole per cent of the silver halide is AgCl, and (c) in the emulsion or an adjacent layer a compound of formula: - (in which M is H, alkali-metal or an organic amine radical; Xis -SO 2 R or -COR; R is C 1-30  optionally substituted hydrocarbon) which reduces development speed thus producing a more even development. Preferably the developer contains a condensation product of a carbonyl-bisulphite adduct and an amine, e.g. Na bis-(2-hydroxyethyl)- aminomethane sulphonate which may be formed in situ from diethanolamine and Na formaldehyde bisulphite.
Patent GB-858874-A (GB)
Title: Improvements in or relating to safety lamps
Inventor: BISHOP WILLIAM NORMAN
IPC: F21L23/00
Filed: 1958-12-27
Abstract: 858,874. Miners' safety lamps. WOLF SAFETY LAMP CO. (W. MAURICE) Ltd. Aug. 17, 1959 [Dec. 27, 1958], No. 41798/58. Class 75(3). In a flame safety lamp having an electric igniter for the wick, the base provides a container 13 for absorbent filling and fuel and has an open central top portion over the area inside the locking ring 16 to the underside of which the container is fitted, a flanged dished cover 20 extending part way down the container and a cover plate 12 for the dished cover bearing spring clips 18 on the underside to receive batteries 19, holes being provided in the cover 12 for the burner tube and a stem 38 supporting the filament 28 above the cover plate. Contact pieces 22, 23 engaging respectively the sheath of one battery and the central pole of the other have integral contacts 24 which are engaged by the lower ends of horns 26 supporting the filament 28 when the filament mounting is rotated by the stem 38 against a spring 41 to bring the filament into juxtaposition with the wick. The central pole of the first battery and the sheath of the second battery may be connected by a bridge piece or may engage clips connected to contact arms 32, 33 engaging the ends 34, 35 of a metal strip 36 deposited on the interior of the lamp glass 10 as in Specification 858,870. The covers are locked in place by the screwing down of a locking ring which is connected by pillars to the bonnet and which presses the lamp glass 10 into contact with a sealing member 11. Specifications 853,152, 858,871 and 858,873 also are referred to.
Patent GB-1512303-A (GB)
Title: Load controlled fluid system having parallel work element
IPC: F15B11/16
Filed: 1976-10-11
Abstract: 1512303 Fluid-pressure servomotor systems CATERPILLAR TRACTOR CO 11 Oct 1976 [2 Feb 1976] 42179/76 Heading G3P A fluid system of a work vehicle comprises a pilot pump 16 driven by a prime mover, and at least one fluid circuit including a variable displacement pump 18 driven by the prime mover and supplying fluid to parallel-connected work elements 30, 32 through respective control valves 38, 40 which are controlled by pilot valves 50, 52 supplied with fluid from the pilot pump 16 through a valve 62 (where it is modified to give signal W) which is urged to an open position by the main pump discharge pressure (in line 54) and to a closed position by a biasing means (such as spring 72) and that load pressure in a work element which is greatest in magnitude (in line 60). The discharge pressure and the greatest load pressure also act in opposition on a valve 74 to modify the pilot pressure and supply it (as signal X) to a servomotor 86 controlling swash-plate 84 of the pump 18. In a further valve 88 the pump discharge pressure (line 94) and the discharge pressure of the pump in another circuit (line 96) act in opposition to biasing means to modify the pilot pressure signal to give signal Y; signals X and Y are compared by means 102 and the greater signal fed, as signal Z, to the servomotor 86.
Patent GB-1086550-A (GB)
Title: Dough and baked products prepared therefrom
IPC: A21D8/04
Filed: 1966-09-21
Abstract: A dough, suitable for bread, rolls and sweet goods, comprises flour and a lipase preparation obtained by the cultivation of Candida cylindracea ATCC No. 14,830 in a suitable medium at 20-35 DEG C., as described and claimed in Specification 976,415.  The dough may also contain shortening.
Patent GB-1143960-A (GB)
Title: Improved hydrostatic bearing
IPC: F16C32/06
Filed: 1966-09-21
Abstract: 1,143,960. Bearings. H. E. G. ARNESON. 21 Sept., 1966, No. 42238/66. Heading F2A. A hydrostatic bearing comprises inner and outer members 110, 62 with part-spherical bearing surfaces, the bearing surface of the outer member being concave and having an annular recess 75a to which fluid is supplied. In Fig. 1 there are two such bearings, and fluid is supplied from common lines 81, 80 to branch lines 87, 88 opening into annular grooves 90, 91 in the respective recesses 75a, 76a. Fluid escaping from the recesses through clearances 75a, 76b enters annular grooves 96, 97 and clearance 106, and passes through lines 95, 98, 99 to outlet 100.
Patent GB-1480700-A (GB)
Title: Rifamycin s and sv derivatives
IPC: C07D498/08
Filed: 1975-10-16
Abstract: 1480700 Rifamycin S and SV derivatives ARCHIFAR INDUSTRIE CHIMICHE DEL TRENTINO SpA 16 Oct 1975 [29 Oct 1974 42393/75 Heading C2C Rifamycin S derivatives of the general formula wherein X is N 3  or NH 2  and Y is H or COCH 3 , which are novel when X is N 3 , are prepared by dissolving rifamycin S or the 25-desacetyl derivative thereof in a dipolar aprotic solvent at 0-100‹ C. and adding sodium azide. They may be dissolved in a solvent and reduced to give rifamycin SV derivatives of the general formula which are novel when X is N 3 .
Patent GB-1048030-A (GB)
Title: Blowpipe assembly for a blast furnace
IPC: C21B7/16
Filed: 1963-10-29
Abstract: 1,048,030. Tuyere blast pipes. AMERICAN BRAKE SHOE CO. Oct. 29, 1963 [Jan. 4, 1963], No. 42684/63. Heading F4B. In a furnace blowpipe assembly, gas from a bustle pipe is introduced into the furnace through a tuyere connected to the bustle by a duct 25 and a blast tube 12, one end 15 of the blast tube being supported by a seat in a faceplate 17, said seat being lined at least in part with a separate insert 35. The face-plate 17 is formed with a recess 37 to receive the insert 35 which is composed of a heat-resistant alloy.
Patent GB-1317234-A (GB)
Title: Method of inhibiting the hydrolysis of acetylsalicyclic acid and d-propyxyphene hydrochloride
IPC: A61K47/18
Filed: 1971-09-14
Abstract: 1317234 Analgesic composition ELI LILLY & CO 14 Sept 1971 [15 Sept 1970 3 Sept 1971] 42750/71 Heading A5B An analgesic composition comprises (a) acetyl salicylic acid, (b) d-propoxyphene (1, 2- diphenyl-2-propionyloxy - 3 - methyl-4-dimethylaminobutane) (c) a water-soluble salt of a compound having sub-structure of formula: wherein R is H, methyl, isopropyl, butyl, isobutyl, sec-butyl, hydroxymethyl, 1-hydroxyethyl, carboxymethyl, carboxyethyl, carboxy- 1-hydroxyethyl, aminobutyl, methylthioethyl, mercaptomethyl, carboxy-(2-aminoethyl)-dithiomethyl, p-hydroxyphenyl, benzyl, indolylmethyl, guanidinopropyl, imidazoyl methyl or ureidopropyl or a compound of formula: wherein R 1  is H or OH. The salt (c) may be L-glutamic acid hydrochloride or L-lysine hydrochloride. The composition may also include phenacetin and caffeine. It is administered orally.
Patent GB-1185489-A (GB)
Title: Analog Multiplier and Storage System.
IPC: H03H9/125
Filed: 1967-09-21
Abstract: 1,185,489. Multipliers. INTERNATIONAL BUSINESS MACHINES CORP. 21 Sept., 1967 [3 Oct., 1966], No. 43025/67. Heading G4G. A time division multiplier (Fig. 1) comprises a modulating driver 20 in which a pulse modulator responsive to X, Y producing a pulse which is modulated thereby respectively in amplitude and length, applied to an exclusive OR gate 21 also receiving a recirculating pulse; the circuit being arranged to admit the X, Y pulse or the recirculating pulse as alternatives, to a linear current buffer amplifier, where current pulse of area proportional to its input voltage pulse is applied to a time delay medium incorporating a magnetostrictive delay line; the output voltage thereof being applied through a linear amplifier to a voltage/time sensor 23 wherein a time integrator and rectifier produce a direct voltage representing the integrated input voltage and the product XY. This is applied to a charge generator 24 incorporating a Schmitt relay to produce a pulse of fixed duration and of amplitude corresponding to the input voltage, or vice versa, which is applied through exclusive OR gate 21 for recirculation. The delay line (Fig. 2) may comprise a metallic, e.g. nickel wire 10 exhibiting magnetostriction suspended between shock absorbent end dampers with transducer coils 11, 12 and bias magnets 13 at the ends; an input current pulse developing a field overcoming the bias to expand or contract the length of the wire and transmit a strain pulse to vary the bias field at the remote end, whereby an output current pulse is developed. Alternatively (Fig. 3), nickel tapes welded to diametrically opposed points of a mechanical transmission line 17 are current pulse excited by push-pull transducers to apply torsion to the line, and a similar device produces a delayed current pulse at the remote end.
Patent GB-1520289-A (GB)
Title: Method and apparatus for bonding tread strips to tyre bodies
IPC: B29D30/56
Filed: 1975-10-22
Abstract: 1520289 Bonding tread strips to tire bodies BANDAG Inc, 22 Oct 1975 43115/77 Divided out of 1520288 Heading B7C An apparatus for use in bonding a procured tread strip 116 to a tire body 110 by means of an interposed vulcanizable bonding layer 118 comprises a vessel 10 for receiving the assembly 12 of tread strip, bonding layer and tire body, resistance heating elements 65 for heating the interior of the vessel, a vent 26 communicating with a vent conduit 20 connectible to the interior of a cover 122 applied over the tread strip, a fluid supply manifold 44, an inflation conduit 30 connected at one end to the manifold and connectible at the other end to the interior of the tire body, and a pressure differential check valve 42 by way of which the manifold is communicated with the interior of the vessel. The pressure differential check valve 42 maintains the pressure in the vessel at a lower value than the pressure in the inflation conduit 30, when pressurized fluid is supplied to the manifold 44. In use of the apparatus, elastic rings 140 may be disposed in tread grooves 120 of the tread strip. The presence of rings 140 is said to reduce the possibility of distortion of the tread strip during the bonding operation.
Patent GB-1202196-A (GB)
Title: Agricultural spraying process and device
Inventor: MAYTUM DEREK LAURIE
IPC: G05D11/00
Filed: 1966-09-27
Abstract: 1,202,196. Crop spraying devices. IMPERIAL CHEMICAL INDUSTRIES Ltd. 12 Sept., 1967 [27 Sept., 1966], No. 43134/66 Heading A1D. [Also in Division F1] A device for spraying a diluted agricultural chemical from a tractor comprises a pump 12 to convey diluent from a reservoir 10 to a spray head 14, and a metering pump 20 to convey agricultural chemical from a reservoir 18 to the spray head 14, pump 20 being driven at a rate proportional to the speed of the tractor. Pump 20 may be driven by the power take-off of the tractor or by a land wheel. The capacity of the metering pump 20 is adjustable (see Division F1).
Patent GB-1023621-A (GB)
Title: Improvements in or relating to electrical signalling systems
Inventor: CROFT GEOFFREY FRANCIS
IPC: H04L25/49
Filed: 1962-11-15
Abstract: 1,023,621. Transistor pulse circuits; telegraphy. BRITISH TELECOMMUNICATIONS RESEARCH Ltd. Nov. 6, 1963 [Nov. 15, 1962], No. 43291/62. Headings H3T and H4P. The conversion of binary signals of the type in which one value is represented by a change between two levels and the other by continuance at that level (waveform E) to signals in which pulses of alternating polarity represent the changes (waveform F) is effected by two complementary transistors VT1 and VT2 to which the input signals are fed and having their combined output fed through a capacitor C 1  to the load R3. In the circuit shown the waveform E is applied in parallel to the two bases, Vc being a level setting circuit. The emitters are connected to constant circuit sources and to clamping diodes. When the signal changes to the positive value, VT2 conducts diverting the current from the clamping diode so that the resulting constant current charging pulse for C 1  produces a pulse of corresponding polarity across R3 (waveform F). A change to a negative signal produces a similar pulse but of opposite polarity across R3. The waveform E is obtained from an input waveform IP of the type shown at D (wherein one binary value is represented by a pulse) by means of a bistable circuit CC.
Patent GB-1444927-A (GB)
Title: Connectors for electrical conductors
IPC: H01R9/03
Filed: 1973-09-14
Abstract: 1444927 Electric couplings ELECTRICITY COUNCIL 13 Dec 1974 [14 Sept 1973] 43320/73 Heading H2E  In an electrical connector, a stiff resilient C- shaped member 10 receives at least one conductor 22, 23 in a channel 14, and shears a further conductor 21 which may be insulated when edges 17 of member 10 are moved across conductor 21 by the clamping system 24-28 thereby retaining in contact conductors 21-23. Conductor cores 22, 23 or associated spacers protrude from their channels and in another embodiment (Fig. 4, not shown) one of the channels is filled to give the same effect as a core. The body 11 may be curved as shown or may have a 120 degree angle (Fig. 10, not shown) in which case the engaging plate 28 has a contact angle of 122 degrees. In both cases a contact pipe 32 (Fig. 5, not shown) may be incorporated. A modification has angled tongues (44), Figs. 9 and 10 (not shown), which are subsequently bent by engagement with the sheared surfaces of conductor 21 and provide further resistance against withdrawal. In a further embodiment, Fig. 8, member 10 is provided with a layer 33 of resilient insulating material incorporating four conduits 36, each having a removable closed end 37, to give access to the channels 14<SP>1</SP>, 14<SP>11</SP> the access being through the conduits 36 or independent thereof when the conduits are bent aside. The C-shaped member 10 may be of aluminium alloy HEW30P and may be provided with spacers, preferably of brass to accept conductors 21 of various sizes.
Patent GB-1123407-A (GB)
Title: Melt spinning apparatus comprising a spinning mass filter and spinning head
IPC: B29C48/69
Filed: 1965-10-14
Abstract: 1,123,407. Melt-spinning apparatus. TRIKOTFABRIKEN J. SCHIESSER A.G. 14 Oct., 1965 [29 Dec., 1964], No. 43579/65. Heading B5B. A melt-spinning apparatus having a spinning mass filter and a spinning head comprises a holding block 1 attachable to the spinning mass feed pipe 4 and at least two insert bodies 2 and 3, which can be inserted in said holding block, one of the insert bodies containing at least a main filter 22 and at least one other insert body containing a spinning head with nozzles, said holding block having an outer connecting channel 4 between the feed pipe and the filter insert body inlet and an inner connecting channel 14 between the filter insert body outlet and a spinning head insert body inlet 39 and means 15, 16 for fastening the insert bodies in such a position that the connections between the connecting channels of the holding block and those of the insert body are sealed. As shown, the connecting channels in the holding block may be arranged substantially coaxially, the wall regions 13 of the reception bores for the insert bodies into which the said channels open being practically normal to this common channel axis and parallel to each other, the insert bodies having dimensions slightly smaller than the bores in which they are to be received, the fastening means being clamping screws arranged in the direction of the common channel axis, which screws clamp together an insert body pair 2, 3 and press it simultaneously to the inner connecting channel 14. The insert bodies may accommodate main filter and spinning mass supply means and spinning head or gas feeder elements respectively as interchangeable construction elements. The spinning mass supply means may comprise a pump 21 arranged between the spinning mass inlet 4 and the main filter 22, incorporated in insert body 2 in such a way that its drive shaft is arranged substantially parallel to the connecting channel axis. The apparatus is suitable for the production of gas-filled melt-spun filaments utilizing an insert body 3 as shown having provision for a supply of filling gas to the spinneret. As shown, the conveying pipes for the melt spinning mass provided within the insert body may be arranged so as to assure smooth conveyance free of any dead angles.