baber/WOPTO huggingface dataset:
Patent GB-1200960-A (GB)
Title: Quick-opening shrink film package
Inventor: FORMAN HAROLD MORTON
IPC: B65D75/68
Filed: 1968-11-11
Abstract: 1,200,960. Shrink packaging. H. M. FORMAN. 11 Nov., 1968 [9 Nov., 1967], No. 53293/68. Addition to 1,156,275. Heading B8C. A film C with at least one sealed edge such as 30 is heat-shrunk about an item A, and a cutter B of cord or metal extends around the periphery of the item and is located between the item and film; the cutter is frictionally held with respect to the item and has one end extending outwardly from the film so that by pulling said end towards the other end the film is cut. The cutter may be impregnated with a solvent to weaken the film along the cutting line and both of its ends may extend through the film.
Patent GB-1104552-A (GB)
Title: Improvements in or relating to digital code communication systems
Inventor: WELLS JOHN HAROLD CHARLES
IPC: G11B20/14
Filed: 1965-12-21
Abstract: 1,104,552. Digital data storage. M.E.L. EQUIPMENT CO. Ltd. 5 Sept., 1966 [21 Dec., 1965], No. 54084/65. Heading G4C. Information to be transmitted over, or re. corded in, a plurality of channels is coded according to the non-return-to-zero (NRZ) code, and a parity check signal and a clock signal are combined to a dual purpose binary signal for transmission over or recording in a single channel. Each 5-bit character recorded across a magnetic tape is accompanied by a corresponding parity bit which is an odd-parity and evenparity bit for successive characters alternately. The parity bit is generated by feeding the bits of the character, and a clock signal which is 1 for alternate characters, to an odd-parity generator (or by combining in an even-parity generator the clock signal and an odd-parity bit derived from the character bits). The clock is reconstituted on read-out by feeding the character bits and the accompanying parity bit to an oddparity generator. The reconstituted clock signals are used for gating the read-out character bits.
Patent GB-1455460-A (GB)
Title: Optical system
IPC: G11B7/09
Filed: 1973-11-28
Abstract: 1455460 Automatic focusing; scanning PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 28 Nov 1973 [1 Dec 1972] 55179/73 Heading G2J In an objective system e.g. for forming an image of source 5 on the information-bearing tracks 3 of a rotating record carrier 1 the image is automatically kept in focus despite varying axial displacement e of the carrier 1, the system comprising two lenses L 1 , L 2  (Fig. 3) instead of the usual single lens 7 (Fig. 1) one of which L 2  is moved to maintain focus. The lenses L 1 , L 2  are arranged so that much smaller movements c of L 2  are required to maintain focus than would be necessary with the single lens 7. For example, if the lens system gives an overall magnification of <SP>1</SP>/ 20 , a single lens 7 must be moved through almost the same distance as the carrier 1. If however lenses L 1 , L 2  have magnifications of <SP>1</SP>/ 40  and 2 respectively L 2  need be moved only one third of the distance. Thus the mechanical power required of the automatic focusing system is reduced to a ninth. In a modification Fig. 4, (not shown) the fixed lens is +ve and the movable lens -ve. After passing through record carrier 1, the read beam 12 is focused on to a radiation sensitive detector 9. The automatic focusing system comprises an opto-electronic image detector which supplies a signal α the deviation between the actual and desired image planes to effect movement of the movable lens.
Patent GB-1366155-A (GB)
Title: Rotary electrical contact
IPC: H01R39/64
Filed: 1971-11-29
Abstract: 1366155 Current collectors RIV-SKF OFFICINE DI VILLAR PEROSA SpA 29 Nov 1971 [8 Feb 1971] 55334/71 Heading H2E A rotary bearing adapted to pass current between fixed and rotating assemblies comprises metal rings 1, 2, having cylindrical portions 1b, 2b and curved slanting seatings 1a, 2a, and ball bearings 3, spaced apart by a cage 4, which roll between the seatings la, 2a. The bearing is held together, and contact is maintained despite wear or faulty assembly, by an axial load. The rings are covered, except over the bearing surfaces, by moulded plastics covers 5, 6 which comprise tubular parts 5a, 6a and flanges 5b, 6b with lips 5c, 6c. Connection to the rings 1, 2 is made by metal strips 7, 10, with enlarged ends 7a, 10a secured by deformation in slots 8, 11, which extend axially through slots 9, 12 in the covers.
Patent GB-557367-A (GB)
Abstract: 557,367. Valve generating circuits. BRITISH THOMSON-HOUSTON CO.. Ltd. May 11, 1942, No. 6367. Convention date, May 10, 1941. [Classes 40 (iii) and 40 (v)] A saw-tooth oscillator feeding an inductive load has combined with the load an additional impedance in the form of an artificial line chosen so that the combined load simulates a pure resistance at the fundamental and harmonic frequencies of the saw-tooth oscillations. In Fig. 1, saw-tooth oscillations 5 are fed to an amplifier 3 the output of which is fed through a transformer 4 to the highly inductive deflecting coils 2 of a cathode ray tube. In series with the primary of transformer 4 are inductances 8 and 9 with condensers 13 connected across the circuit. The usual H.T. supply 10 and byepass condenser 14 are provided. Elements 8, 9, and 13 are proportioned so that the impedance looked at from the amplifier 3 simulates a transmission line short circuited at the far end and equal to one half wave-length of the fundamental frequency. This presents a purely resistive impedance at the fundamental and harmonic frequencies. Coil 9 is made equal to the inductance of the primary of transformer 4 and is half the inductance of each of the coils 8. In a modification, Fig. 2 (not shown), the transformer 4 is dispensed with. the load and the artificial line being connected directly in series in the anode circuit of the amplifier. Fig. 3 shows a suitable construction for the elements 8, 9 and 13 in one unit comprising a coil 15 wound on an insulating former 16 over a divided metal sleeve 17 grounded at 18. The coil 15 replaces the inductances 8 and 9 while the capacity between the turns and the sleeve 17 replaces the condensers 13.
Patent GB-1268110-A (GB)
Title: Securing rear-view mirrors in vehicles
IPC: B60R1/04
Filed: 1969-11-14
Abstract: 1,268,110. Rear-view mirrors. FORD MOTOR CO. Ltd. 14 Nov., 1969 [20 Nov., 1968], No. 55857/69. Heading B7J. A rear-view mirror is secured to the roof pressing 1 of a vehicle by an adhesive bond between a mirror-support base 9 and an exposed area 6 of the roof pressing, the facing surfaces of the mirror-support base and the roof pressing having apertures 10, 2 therein receiving opposite ends 5, 4 of a resilient locating member 3 which serves to hold the base in position on fitment during settling of the adhesive. In the embodiment illustrated the locating member 3 is a spring steel clip having upper 4 and lower 5 sets of spring edges and the mirror base has an adhesive layer 11 which is composed of a synthetic adhesive or alternatively of an adhesive tape coated on both sides, and which, prior to use, is protected by a removable paper foil. The area of the adhesive bond is preferably chosen so that the mirror-support base breaks away when the mirror area is subjected to a force of 30 kp. In an alternative embodiment the clip is made of a plastics material.
Patent GB-1413409-A (GB)
Title: Electrical assemblies
IPC: H05K7/10
Filed: 1973-12-03
Abstract: 1413409 Transformers SIEMENS AG 3 Dec 1973 [22 Dec 1972] 55954/73 Heading HIT [Also in Division H2] To carry an electrical component 1, for example the ferrite core of a transductor, a thermoplastic base-plate 2 with contact pins 3 also bears lugs 6 which hold the component 1 mechanically. The lugs 6 may be pre-bent, heated and pressed into plate 2 to secure the component 1 on cooling, the plate 2 together with contact-pins 3 having been previously formed. Alternatively the lugs, not bent, may be set in place when the plate 2 is formed, and subsequently bent over component 1 to secure it. More than one component may be secured on the plate.
Patent GB-1158580-A (GB)
Title: New Electrodes, for Fuel Cells in Particular, and their Production Process
Inventor: HAMARD PIERRE
IPC: H01M4/96
Filed: 1966-12-14
Abstract: 1,158,580. Fuel cell electrode having a carbon fabric support. INSTITUT FRANCAIS DU PETROLE, DES CARBURANTS ET LUBRIFIANTS. 14 Dec., 1966 [16 Dec., 1965], No. 56036/66. Heading H1B. A fuel cell electrode comprises a thin support formed by a fabric of carbon threads covered on at least one surface by a fritted mixture of a polymer and a catalytic material. Preferably there are, per square metre of fabric surface, 0À1-300 gm. of catalyst (calculated as metal) and 0À05-100 gm. of polymer, corresponding to 0À1-60 wt. per cent and 0À05-20 wt. per cent respectively of the total electrode. Suitable fabrics are obtained by heating, out of air, at e.g. 600-900‹ C. fabrics of, e.g. flax, jute, cotton, regenerated cellulose, cellulose acetate, polyethylene terephthalate or polycaprolactam, giving fabrics having at least 5 meshes per cm. and a thickness below 2 mm., the fibrillae of the threads having a diameter less than 50 Á. Suitable catalysts include Co, Ni, Ru, Rh, Pd, Os, Ir, Pt, Cu, Ag and Au as metals, e.g. metal blacks or Raney metals, or oxides, carbonates, hydroxides, sulphides, selenides, tellurides, borides, molybdates, tungstates, vanadates and chromites. Suitable polymers include PTFE, polytrifluorochloroethylene, polyhexafluoropropylene, polyethylene, polypropylene, polytrifluoroethylene and fluoro-olefin copolymers, of softening points above 75‹ C. The catalyst and polymer may be applied from aqueous dispersions containing 0À1-30 wt. per cent and 0À1-60 wt. per cent of these, respectively. There may also be present dispersing or swelling agents, e.g. polyethylene oxide, polypropylene oxide, carboxymethylcellulose or polyvinyl alcohol, and carriers for the catalyst, e.g. carbon, graphite or non- catalytic Ag or Ni. In examples a graphite fabric is treated with aqueous dispersions of (1) platinum black, colloidal silica, and PTFE, (2) platinum-bearing carbon (5 wt. per cent Pt), polyvinyl alcohol and PTFE, (3) silver oxide, colloidal silica, polyvinyl alcohol and PTFE, and (4) 1-5 Á particle size graphite powder, colloidal silver, polvinyl alcohol and PTFE/ polyhexafluoropropylene copolymer, then heated at 300‹ C. in H 2 /N 2  (250‹ C. in N 2  in Example 4). The products are tested as hydrogen electrodes and as oxygen electrodes in semicells using H 2 SO 4  and KOH electrolytes.
Patent GB-1145530-A (GB)
Title: Molding compositions containing nylon and rubber, and processes of forming the same
IPC: C08L77/00
Filed: 1966-12-15
Abstract: 1,145,530. Moulding compositions; extrusion pelletizers. U.S. RUBBER RECLAIMING CO. Inc. 15 Dec., 1966 [21 March, 1966], No. 56254/66. Heading B5A. [Also in Division C3] A moulding composition particularly intended for extrusion or injection moulding comprises a major proportion, 64-91% by weight of nylon, e.g. nylon 6-6, and/or other synthetic thermoplastic material and a minor proportion, 3-36% by weight, of rubber and/or other vulcanized or cured elastomeric material. The composition is preferably obtained by recovering nylon from used tire cord, the process being such that some elastomeric material is left clinging to the nylon, and extrusion-pelletizing the reclaimed nylon under conditions of heat, e.g. at a temperature in the range 150-350‹ F., and pressure. The synthetic thermoplastic material additional to or in place of the nylon may comprise fibres of cellulose acetate or polyester and the composition may include up to 10% by weight of natural fibres such as cotton. A conventional ring-androller pelletizer is described, Fig. 1 (not shown), having rollers (14), a rotating ring (16), a knife (21) and a pneumatic conduction shoot (25). Seven detailed examples are given.
Patent GB-1243360-A (GB)
Title: Improvements in circuit interrupting means for a high-voltage d.c. system
IPC: H01H33/59
Filed: 1968-11-28
Abstract: 1,243,360. Arcing preventing in switches. GENERAL ELECTRIC CO. 28 Nov., 1968 [6 Dec., 1967], No. 56468/68. Heading H1N. [Also in Division H2] The direct - current circuit interrupting arrangement of Specification 1,235,713 is applied to a T-feeder junction of a D.C. system having a circuit interrupter 25a ... 25c for each feeder at the junction. A common capacitor 35 is normally charged through a common resistor 55. A normally-open circuit-making device, e.g. a triggered gap device 38a . . . 38c is associated with each circuit interrupter 25a . . . 25c and is controlled so as to permit the capacitor to discharge through the associated circuit interrupter when its contacts are opened. A common surge suppressing circuit 99 is provided at the junction; this circuit having a gap device 100 which is triggered when a circuit interrupter is opened and which is extinguished by triggering a further gap device 200 to discharge the capacitor 35 through the gap device 100. Further surge suppressing circuits 399a ... 399c may be associated with the respective feeders. The circuitinterrupters may be tripped under the control of overcurrent relays connected to D.C. current transformers and having such time-overcurrent characteristics that the relay nearest the fault operates more quickly than the others. Each interrupter may comprise a plurality of seriesconnected contacts.
Patent GB-1170418-A (GB)
Title: Apparatus for Automatic Detection and Alarm of Fouled Magnetic Head
IPC: G01R31/28
Filed: 1966-12-19
Abstract: 1,170,418. Detecting fouled magnetic head. AKAI ELECTRIC CO. Ltd. 19 Dec., 1966 [9 July, 1966], No. 56672/66. Heading G5R. The fouling of the working surface of a playback head 20 by magnetic dust particles, grease &c. is detected by a circuit 12-16, designed to respond to a narrow band of signal and noise in the played-back signal. Normally the narrow band signal is sufficient in amplitude to hold a Schmitt trigger circuit 15 in a state which supplies an output signal to cut off transistor Tr10, however, when the amplitude drops below a set value, due to fouling of the head, the trigger circuit changes over, transistor Tr10 conducts lighting the warning lamp 83. The circuit includes band-pass amplifier 12, which may pass a band centred on 8 kc/s. when the recorder operates on audio frequencies, signal level amplifier 13 with variable level control 45, and rectifier amplifier 14.
Patent GB-1205655-A (GB)
Title: Bumper guard assembly for vehicles
IPC: B60R13/04
Filed: 1967-12-13
Abstract: 1,205,655. Vehicle bumpers. BISCAYNE MFG.CORP. 13 Dec., 1967 [16 Dec., 1966], No. 56738/67. Heading B7J. A vehicle bumper body side strip 16 is keyed to an elongated holder 14 of cross-section as shown in Fig. 4 which is held by a spring clip 20 to a vehicle part 22. Caps 91, Fig. 3, having spring legs 96, 98, the ends 100, 102 of which are triangular in shape, are fitted into the ends of the holder 14.
Patent GB-1276518-A (GB)
Title: Parametric amplifiers
IPC: H03F7/04
Filed: 1969-11-21
Abstract: 1276518 Parametric amplifiers TOKYO SHIBAURA DENKI KK 21 Nov 1969 [29 Nov 1968] 56988/69 Heading H3B In a parametric amplifier, a diode 10, Fig. 5, which couples a passage 12 of a pumping waveguide 11 to a coaxial line 14, 16 is disposed in a recess 19, Fig. 4, of the waveguide, the recess opening into the passage 12. The central conductor 16 of the coaxial line is connected to the diode, and the outer portion 14 of the line is bolted to the waveguide. The diode is closely surrounded by metal of the waveguide and this is stated to lower the reactance of the coupling and hence to extend the possible frequency of operation in comparison with a known amplifier, Figs. 1, 2 (not shown) in which the diode is in the centre of passage 12.
Patent GB-1448099-A (GB)
Title: Digital signal transmission system for minimising the effects of reflections
IPC: H04L25/00
Filed: 1973-12-13
Abstract: 1448099 Data transmission; D.C. systems; clipping circuits INTERNATIONAL BUSINESS MACHINES CORP 13 Dec 1973 57885/73 Headings H4P and H3T To reduce voltage swings on a D.C. single current line, particularly when two transmitters place a voltage step on the line simultaneosuly, a clamping device is provided at each receiver to limit received signal excursions to between amplitude transmitted and less than twice amplitude, e.g. 1 to 1-5 times. The clamp may include a diode and biasing voltage source or on a balanced line pair, may be a differential amplifier and switching transistor. Improvement in transient conditions is illustrated by comparison of Fig. 6 (not shown) with no clamping circuit, with Fig. 7 (not shown) with a clamp at one receiver and Fig. 8 (not shown) having clamps at two receivers. A transistor circuit is described in the Specification utilizing long tailed pairs in which transistors T1, T2 control the distribution of currents through transistors T3-T11. Normally T4 is conductive and T5 non- conductive. When line B reaches 100 mV positive this position is reversed thus reversing flow of current through resistor R2 making T8 conductive which renders a further transistor T12 conductive thus placing a clamp across AB and rendering T9 non-conductive. In a development (Fig. 10, not shown) PNP/NPN pairs suitable for monolithic construction are used.
Patent GB-1413697-A (GB)
Title: Sealing device
IPC: F16J15/18
Filed: 1973-12-17
Abstract: 1413697 Seals TOUR AGENTURER AB 17 Dec 1973 [29 Dec 1972] 58319/73 Heading F2B A seal assembly for a valve spindle 2 comprises one or more V-section seal rings 13 disposed between a support ring 14 and a pressure ring 15, the lips on the side of the seal rings which abut the movable part being in contact with either the pressure ring or an adjacent seal ring while the opposite lips form a gap therewith. The seal assembly may be housed in an extension 11 of a gland nut 7 and the pressure ring 15 urged upwardly by a spring 6. The seal rings may be made of P.T.F.E. reinforced with 12 to 18% carbon.
Patent GB-1316220-A (GB)
Title: Process for the preparation of 5-4-aminobutyl-hydantoin
IPC: C07C273/18
Filed: 1971-12-17
Abstract: 1316220 5 - (4 - Aminobutyl) - hydantoin STAMICARBON NV 17 Dec 1971 [23 Dec 1970] 58756/71 Heading C2C 5 - (4 - Aminobutyl) - hydantoin is prepared by hydrogenating 5-(3-cyanopropyl)hydantoin (optionally in admixture with 1-ureido-4-cyanovaleramide) in the liquid phase under hydrogen pressure at a temperature of at least 50 C., the starting material(s) being added to a suspension of a hydrogenation catalyst in an inert solvent in which these materials are soluble. In examples the solvent is water and the starting materials are in ammoniacal aqueous solution.
Patent GB-1451205-A (GB)
Title: Shaping machine with servo-assisted forming roll
IPC: B21H8/00
Filed: 1973-12-19
Abstract: 1451205 Rolling mills SOC NATIONALE INDUSTRIELLE AEROSPATIALE 19 Dec 1973 [29 Dec 1972 4 Dec 1973] 58802/73 Heading B3M A machine for rolling a metal sheet 3, Fig. 4, has one roll 1 driven by a motor 6, the torque applied to the roll being :responsive to the manual force with which the sheet is pushed between the rolls. The force can be measured by the displacement suffered by the bearings 7 of the roll 1, or by directly sensing the force applied to the sheet by a hand grip. In the former case, the roll is provided with eccentric bearings 7, Fig. 2, which rock slightly when a force f is applied to the sheet. The value of the force may be sensed by measuring the differential pressure across the bearings (which are of hydrostatic construction). Alternatively, measuring vanes may be attached to the bearings (Fig. 6 not shown), the vanes rocking with the bearings. In both cases, the output from the force sensor is used to control the torque applied by the motor 6. When a hand grip, Fig. 7, is used the bearings 7 may be of normal construction. The grip is clamped to the sheet, and has a handle 39 provided with a force sensor. The sensor may be a double acting piezoelectric quartz blade gauge 55, or may be a potentiometer gauge coupled to a handle of pivoted construction. The motor 6 may be hydraulic or electric, and is controlled appropriately.
Patent GB-1288095-A (GB)
IPC: C07J19/00
Filed: 1969-12-05
Abstract: 1288095 4,5-Epoxybufadienolides FARBWERKE HOECHST AG 5 Dec 1969 [5 Dec 1968] 59616/69 Heading C2U The novel compounds 3#,14-dihydroxy-4#,5- epoxy - 5#,14# - bufa - 20,22 - dienolide (Ia) and the 3-acylates thereof having up to three carbon atoms (Ib) are prepared from scillarenin by treatment with a peracid to give Ia followed by acylation to give Ib. Compounds Ia and Ib are stated to be cardioactive, and may be made up with carriers into pharmaceutical compositions for oral administration.
Patent GB-1201977-A (GB)
Title: Penicilloic acid derivatives and a process for the manufacture thereof
IPC: C07D277/06
Filed: 1968-12-20
Abstract: 1,201,977. Penicilloic acid derivatives. F. HOFFMANN-LA ROCHE & CO. A.G. 20 Dec., 1968 [4 Jan., 1968], No. 60560/68. Heading C2C. Novel penicilloic acid derivatives of the formula wherein n is 1 to 4, R<SP>1</SP> is hydrogen or C 1  to C 6  acyl, and R is 2-pentenyl; n-pentyl; n heptyl; allylthiomethyl; 5-amino-5-carboxypentyl; benzyl; carboxybenzyl; α-aminobenzyl; phenoxybenzyl; phenbxymethyl; α-phenoxyethyl; α- phenoxypropyl; 2,6-dirnethoxyphenyl; 2-ethoxy-1-naphthyl; 3-carboxy-2-quinoxyalinyl; 5- methyl - 3 - phenyl - 4 - isoxazolyl; 3 - (2 - chlorophenyl) - 5 - methyl - 4 - isoxazolyl; or 3 - (2,6 - dichlorophenyl) - 5 - methyl - 4 - isoxazolyl, and salts thereof, are prepared by reacting a penicillin of formula with a diaminocarboxylic acid derivative of formula  R and n being as above and R<SP>2</SP> being C 1  to C 6  acyl or an amino-protecting group, (e.g. tert.-butyloxycarbonyl or benzyloxycarbonyl), splitting off the protecting group if present, and optionally converting the reaction product to a salt. The reaction is performed in aqueous alkaline medium. Pharmaceutical compositions comprise the novel penicilloic acids or their pharmaceutically acceptable salts together with a pharmaceutical carrier. The compositions may be in forms for enteral or parenteral administration and are for counteracting allergic reactions produced by administering penicillins.
Patent GB-1263824-A (GB)
Title: Sealing arrangement
IPC: F16J15/44
Filed: 1969-12-12
Abstract: 1,263,824. Seals. FRIED KRUPP G.m.b.H. 12 Dec., 1969 [13 Dec., 1968], No. 60803/69. Heading F2B. A sealing arrangement between two relatively rotatable members 1, 2, Figs. 2 and 6, comprises a sealing ring 3 seated on one of the members 2 and having a sealing surface 4 urged by fluid pressure against a coacting sealing surface 12 on the other member 1 with hydrodynamic support from a film of lubricant formed in a gap 13 between the sealing surfaces, projections 11 being provided on the sealing ring or on the other member 1 and extending into a space adjoining the gap 13 so that upon relative rotation the pressure developed in the space acts on the sealing ring to deform it elastically and create a wedge at the gap 13. The sealing ring may be made of steel and held against rotation on the member 2 by means of a projection 10 on the member which engages a recess in the sealing ring. The pressure Pa developed beneath the projections 11 produce a tilting moment in the sealing ring 3 which then bears against the surface 8 on the member 2 on a circle K and the pressure drop along the width b of the gap 13 follows the curve 18. In Fig. 3, the sealing ring is in the form of an end face seal and is held against rotation in a housing 2 for sealing  engagement with the end face 19 of a rotary shaft 1, the gap 26 of width b being formed into a wedge by the pressure developed in the space 27 between the seal and shaft.