baber/WOPTO huggingface dataset:
Patent GB-1143568-A (GB)
IPC: H02H9/02
Abstract: 1,143,568. Modifying reactive characteristics. LICENTIA PATENT - VERWALTUNGSG.m.b.H. 7 Sept., 1967, No. 40895/67. Heading H2H. A circuit for regulating A.C. power flow comprises an inductive winding L in series with a capacitor C tuned to a permissible impedance, e.g. at or near series resonance at a normal commercial frequency, the capacitor being shunted at least in part by a circuit which includes a current flow control means Z in series with a winding L1 which is magnetically coupled to the inductive winding L so that the effective impedance of the series combination LC can be varied by controlling the impedance of the shunt circuit to thereby control the current flow between terminals 1 and 2. The control means Z may comprise a resistor, or may be constituted by controlled rectifiers of the thyratron or semi-conductor type connected back-to-back. For automatic current limitation the control means Z may include a resistor in series with a reactor which saturates when an excess current flows through the capacitor C. The windings L, L1 may form two transformer windings determining the voltage relationship between the main current path and the shunt circuit.
Patent GB-1144205-A (GB)
Abstract: 1,144,205. Covering cores by winding. SIEMENS - SCHUCKERTWERKE A.G. 2 May, 1966 [30 April, 1965], No. 19326/66. Heading B8G. [Also in Division B3] In a machine, for winding a helical tape on an elongated member (e.g. for winding a spirally formed covering on an outer conductor of a coaxial cable) of the type in which the tension in the tape is maintained constant by a brake operated by a lever controlled by a resiliently mounted guide roller which tensions the tape, the pivot point of the lever is made adjustable so that the tension to be maintained can be varied. As shown a metal tape is wound on the outer tubular conductor of a co-axial cable, which outer conductor i s formed round an inner conductor carrying injection moulded spacer discs. The metal tape from a roll 11 freely rotatable on a hollow shaft 6 through which the cable is fed, passes over a roller 30 mounted on two rods pressed to the right as shown by springs 33 so as to tension the tape. If for example the tape slackens, the roller and rods move to the right carrying with them the top end of a lever 23 which is pivoted at its (lower) bifurcated end 24 to a bifurcated end of another normally stationary, lever 25 (see also Fig. 2) which is supported on a fixed pivot 29 and on a pivot 27 adjustable by means of a nut 26 co-operating with a spring 28. Near its lower end the lever 23 has inwardly extending projections 21 which transmit the movement of the roller to the non-rotatable plate 17 of a brake, the other plate of which rotates with the spool. Thus the brake is further applied increasing the tension of the tape to its previous value. Elastically deformable felt brake linings are used to increase the range of travel and thus the accuracy to which the tension can be maintained. The rods carrying the roller 30 are mounted in ball guides to prevent jamming due to centrifugal force.
Patent GB-1225998-A (GB)
IPC: B43K8/03
Filed: 1968-06-26
Abstract: 1,225,998. Felt nib pens. DART INDUSTRIES Inc. 26 June, 1968 [26 June, 1967], No. 30492/68. Heading A4K. In the production of a reservoir for a marker pen, a deregistered crimped filamentary tow is laterally compressed, while a sheath of plastics material is formed around it. The compressed tow may be wrapped in a plastics strip, which is subsequently heat sealed. As shown, molten polypropylene, polyethylene or p.v.c. is extruded around the compressed tow 46, which may be of polyester or cellulose acetate. Uncrimped threads or yarns 80 are provided to bear almost all the tension exerted to draw the tow 46 through the apparatus. The tension may be applied by drive rollers arranged in a cutting machine (62, Fig. 9, not shown) for dividing the sheathed tow into reservoir lengths. On cutting, the ends of the tow remain flush with the end of the sheath. On omitting the threads 80 the centre part of the tow recedes inwardly (Fig. 8, not shown). An air vent, in the form of a longitudinal groove (44), is provided in the outer wall of the reservoir by a pointed nib (79, Fig. 12 not shown). In a pen construction (Fig. 1, not shown) the inner end of a porous nib (24) lies between a pair of arms (34), which are joined to form a piercing point (35), to facilitating insertion of the nib into the fibrous material of the reservoir.
Patent GB-1227402-A (GB)
IPC: B65D85/48
Filed: 1968-05-03
Abstract: 1,227,402. Containers for frangible plates. FLOTEPAK CORP. 3 May, 1968 [5 May, 1967], No. 20990/68. Heading B8P. A container for glass plates 80 comprises two pairs of transversely extending support beams 22, 32 secured to opposite walls of the container (20, 30) to engage opposite edges of the plates 80, and two pairs of support beams 50, 52 secured to opposite container walls 42, 44, which may be curved to contact the facing surfaces of a plurality of stacked plates at the top and bottom. At one side, the plates are separated from each other and interfitted with beam 22 by means of stabilizers 60 each comprising a rectangular cardboard blank folded centrally and having an adhesive portion 74 and a flap 66 with barbs 67 to latch against shoulders 65 in the folded position. At the other side, the plates are separated by means of U-shaped pads 86 on alternate plates. Additional U-shaped spacers (90) may be placed between some of the stabilizers 60 and pads 86. In a modification, the container is formed of wide slats, a metal strap (182) may be used to lock the top support beam in position if the load is lower than the container, and the stabilizers 60 are interlocked by passing the flap 66 of one through the opening 76 in the next so that the barbs 67 of the first interlock with the walls (60a) of the second.
Patent GB-1227473-A (GB)
IPC: C08J7/043
Filed: 1968-09-27
Abstract: 1,227,473. Polymer compositions. DEUTSCHE GOLDUNDSILBER SCHEIDEANSTALT VORMALS ROESSLER. 27 Sept., 1968 [29 Sept., 1967], No. 45934/68. Heading C3P. A process for permanently lacquering, printing and bonding plastics materials comprises mixing the plastics material A with one or more fillers B and one or more compatible polymers C softening in the range 30 to 100 C. and which can be attached by oxidation in conditioning baths, subsequently conditioning the composition and lacquering, printing or bonding. Specified polymers C are polyethylene, polypropylene, polyisobutylene, polyvinyl acetate, polyvinyl chloride, polyacrylates, polyacrylonitrile, ethylene/propylene copolymers, copolymers of vinyl chloride with vinyl acetate, isobutylene, acrylates, methacrylates, butadiene and acrylonitrile, and mixtures of such polymers. Preferred fillers are oxides of metals and metalloids, and alkali metal and alkaline earth metal silicates and aluminosilicates. In an example polypropylene is mixed with silica and ethylene/vinyl acetate copolymer, degreased with alkali, treated with chromic acid and lacquered, printed or bonded.
Patent GB-1229016-A (GB)
IPC: B41N1/24
Filed: 1968-08-26
Abstract: 1,229,016. Stencils. WEBER MARKING SYSTEMS Inc. 26 Aug., 1968 [10 Oct., 1967], No. 40691/68. Heading B6C. A stencil blank assembly comprises a stencil sheet 12, absorbent sheet 14 and cover sheet 16 secured temporarily together by adhesive 20. The sheet 12 is covered by a heat-flowable inkimpervious composition comprising a thermoplastic material on a plasticizer and is such that when superposed upon an original 37 and subjected to infra-red radiation from a source 30 those areas of the composition above the imaged areas of the original are caused to melt and flow into the absorbent sheet 14 leaving passages in the stencil sheet through which ink may pass when the imaged stencil is used in a stencilling machine.
Patent GB-1232376-A (GB)
IPC: F16H9/12
Filed: 1969-09-24
Abstract: 1,232,376. Belt gearing. H. J. VAN DOORNE. 24 Sept., 1969 [24 Sept., 1968], No. 46972/69. Heading F2Q. In a variable speed pulley driving mechanism, an endless belt consists of a single or multiple layer steel belt. Fig. 2 shows a set of steel belts B 1 , B 2 , B 3  in which the thickness h of the belts is as small as possible in order to limit the creeping effect. The clearance between the layers is between 0À3 and 1À8 x the thickness h. The belt flanks are chamfered to an angle α of 1À1 to 1À4 x the angle # of the pulley, Fig. 4. The flanks may be curved, as shown in Fig. 6, the angle γ being 1À1 to 1À4 x the angle #.
Patent GB-1233080-A (GB)
IPC: C09D5/10
Filed: 1968-08-16
Abstract: 1,233,080. Metal priming compositions. MONSANTO CO. 16 Aug., 1968 [18 Aug., 1967], No. 39250/68. Heading B2E. [Also in Division C3] A metal priming composition comprises adipic acid, polyvinyl butyral and a copolymer of allyl or methallyl alcohol with styrene or a ring-substituted styrene esterified with an unsaturated fatty acid of 10-24 carbons, preferably acids from drying or semi-drying oils. The composition is dissolved, e.g. in toluene/nbutanol and may also contain chromium trioxide, aluminium, zinc and cobalt octoate. It is applied to steel, galvanised steel, brass, copper, zinc, iron, stainless steel, bronze, chromium or nickel which may have drawing compound on its surface.
Patent GB-1233571-A (GB)
IPC: H01H13/02
Filed: 1968-06-04
Abstract: 1,233,571. Snap-action switches. MOLEX PRODUCTS CO. 4 June, 1968 [21 March, 1968], No. 26544/68. Heading H1N. The switch is the same as that of Specification 1,233,572, but the claims relate to the retention of component parts in recesses of the housing without the use of separable fastener means.
Patent GB-1234323-A (GB)
IPC: D06P3/14
Filed: 1969-06-24
Abstract: 1,234,323. Dye compositions. L'OREAL. 24 June, 1969 [24 June, 1968], No. 31961/69. Heading D1B. Compositions for dyeing keratinic fibres comprise at least one direct dye in aqueous solution or dispersion and an aromatic solvent which is chemically inert to the dye and the fibres and which is miscible with water and is of formula: in which n is an integer 1-4 and Ar is an unsubstituted aromatic radical, especially phenyl. The preferred solvent is 2-phenoxyethanol present as 0.5-8% by weight. Optionally a second solvent miscible with water may be present e.g. 2-butoxyethanol, or ethylene glycol acetate. The term direct dye includes basic dyes, complex metal-containing dyes, nigrosinea indulines, nitro dyes, and disperse dyes. In particular the compositions are used for dyeing hair.
Patent GB-1237920-A (GB)
IPC: C30B25/02
Filed: 1968-08-26
Abstract: 1,237,920. Vapour phase silicon deposition. TEXAS INSTRUMENTS Inc. 26 Aug., 1968 [10 Oct., 1967], No. 40743/68. Heading C1A. A single crystal silicon rod, free of cleavages in the crystal structure, is grown by deposition from a gaseous stream of halosilane and hydrogen by passing a steady electric current along the rod to heat it to a surface temperature of 1050‹ C. to the melting point, the temperature of the rod, the concentration of halosilane in the gas stream up to a maximum of 3% by volume and the rate of flow of the gas stream, being chosen to produce a uniform rate of deposition over the developing faces of the rod. The preferred halosilane is trichlorosilane, and the rod is preferably suspended in a cylindrical reactor with a gas flow rate sufficient to fill the reactor 7 times/min. In Example 2 the reactor was purged with H 2  and surface defects on the “ inch diameter rod removed by etching with H 2 /HCl at 1300‹ C. 20 1/min. H 2 /HSiCl 3  (98 : 2 by vol.) was then passed over the rod at 1100‹ C. to give a deposition rate of 7.4 mg./inch/min.
Patent GB-1239407-A (GB)
IPC: C01F11/18
Filed: 1967-09-25
Abstract: 1,239,407. Aragonite. TATE & LYLE Ltd. 25 Sept., 1968 [25 Sept., 1967], No. 43499/67. Heading C1A. Calcium carbonate is obtained in the aragonite form by reacting, at 60-90‹ C., CO 2  with calcium hydroxide dissolved in a sucrose solution in the absence of crystal poisons in amounts preventing the formation of aragonite. These crystal poisons (specifically organic acids) are substances which cause precipitation of calcite instead of aragonite, and obtainable by degradation of sucrose under the conditions of the above process. The reaction is preferably effected at a pH above 7, e.g. between 7 and 9. Pure sucrose solutions and some partially refined sugar liquors are utilizable. Other partially refined sugar liquors contain the poisons and require prior treatment to remove them or counteract their effect, for example by removal with a carbonaceous adsorbent or anion exchange resin or by addition of caustic soda. A continuous process is described wherein the aragonite is separated from the sucrose solution and the latter solution recycled after removal of crystal poisons formed during the carbonation. Suitable apparatus is illustrated.
Patent GB-1239542-A (GB)
IPC: F16N37/00
Filed: 1970-01-06
Abstract: 1,239,542. Reciprocating pumps. TRW Inc. Jan.6, 1970 [July 7, 1967], No.670/70. Heading F1A. A double-acting piston pump comprises a piston 63 reciprocable within a sleeve 57 which is slideable within a bore 51 of a housing 50, and which has two axially spaced sets of ports 74, 75, each set being connectible with an inlet groove 53 situated centrally within the bore 51, and with one of a pair of outlet grooves 56 axially spaced on each side of the inlet groove 53. The piston 53 is mounted on a rod 66 extending through a pair of plugs 60 closing the ends of the sleeve 57, each end of the rod 66 having adjustable stroke limiting means 67, 68, the stroke of the sleeve 57 being limited by flanges 61 on the plugs 60 engaging the housing 50. The rod 66 is coupled to a piston 72 of an air motor 12, and as the piston 12 is moved to the left from the position of Fig.4, firstly the piston 63 and the sleeve 57 move together Fig. 5 (not shown) until the right-hand flange 61 engages the housing 50 Fig.6 (not shown). Ports 75 will now be aligned with the inlet groove 53 which is connected to a reservoir 32, and ports 74 will be aligned with the left hand outlet groove 56 which is connected to outlet 54 and the piston 63 moves to the left relative to the sleeve 57 Fig. 7 (not shown) pumping out the liquid in chamber 62b and drawing a fresh charge into chamber 62a. When the air motor 12 is reversed, the sequence is repeated in the opposite direction. The pump may be used for pumping grease into 'sealed for life' assemblies which are brought into alignment with a series of pump discharge nozzles, Figs. 1-3 (not shown) and when in position operate an air switch to start the air motor 12.
Patent GB-1251957-A (GB)
IPC: F16J1/16
Filed: 1968-02-05
Abstract: 1,251,957. Gudgeon pins. BRITISH LEYLAND TRUCK & BUS DIVISION Ltd. 5 Feb., 1969 [5 Feb., 1968], No. 5763/68. Heading F2T. In a gudgeon-pin connection between a connecting rod and piston of an internal combustion engine the ends of the gudgeon pin, which may contact the cylinder wall in operation, are faced by depositing thereon a layer of material other than that of the pin. The facing material may be of aluminium bronze or a steel pin and may be deposited by flame-gun, plasma-gun or electroplating. The ends of the pin may be machined to a radius slightly less than that of the piston. A maximum layer thickness of about 0À03 inch is given.
Patent GB-1257281-A (GB)
IPC: G11B5/82
Filed: 1970-02-24
Abstract: 1,257,281. Magnetic disc records. BURROUGHS CORP. 24 Feb., 1970 [8 April, 1969], No. 8742/70. Heading G5R. A rotary disc record blank comprises a circular lower-density core, e.g. an aluminium honeycomb structure, covered by a thin higher-density skin, e.g. of brass or copper, with a coating of magnetic material over at least a portion of the skin.
Patent GB-1265035-A (GB)
IPC: A47C3/18
Filed: 1970-01-14
Abstract: 1,265,035. Revolving chairs; resilient mountings. BRIDGE UPHOLSTERY (LEEDS) Ltd. Dec.22, 1970 [Jan. 14, 1970], No. 1803/70. Headings A4J and A4U. A revolving chair is attached to a central bearing unit by torsion bars or other means capable of flexion, thus allowing limited rocking of the chair. In the form shown in inverted sectional elevation, the lower part 1 of an armchair body has fixed to it two transverse torsion bars 2, with cranked ends, by which it is mounted on a turn-table bearing 9, 11, 8 fixed to a base 7 furnished with castors. Tilting of the chair by twisting of the torsion bars 2 is controlled by bars 15, 15a riveted or welded to the bars 2, the bar 15 supporting an abutment 20 on the chair body through a resilient pad and 15a being fixed to the chair body at 16. A resilient pad or other supporting means may be interposed between the bars 2 and the seat proper.
Patent GB-1266586-A (GB)
IPC: C10G11/04
Filed: 1969-06-24
Abstract: 1,266,586. Cracking hydrocarbons. SOC. CHIMIQUE DE LA GRANDE PAROISSE AZOTE ET PRODUITS CHIMIQUES. 24 June, 1969 [25 June, 1968], No. 31918/69. Heading C5E. A hydrocarbon feedstock is converted to a mixture of high ethylene and/or propylene content by passing the feed in the presence of steam through a fluidized bed of particles of a stable catalyst composition, which is resistant to temperatures of 650-900‹ C. and superatmospheric pressure, formed by sintering refractory oxides of which not more than a minor proportion by weight are readily reducible, where the particles are of restricted porosity and have a specific surface of 0À02-10 m.<SP>2</SP>/g. and where the catalysts are not regenerated. Preferred catalyst compositions comprise by wt. 30-70% MgO, 25-40% Zr 2 O and 1-4À5% rare earth oxide or 50-70% MgO, not more than 20% Al 2 O 3  and a minor proportion of ferric or ferrosoferric oxides. The feedstock may be introduced at 200-600‹ C. into the fluidized bed at 650-900‹ C. and up to 50 bars absolute. The weight ratio of steam to carbon in the feedstock may be 0À5-4 : 1.
Patent GB-1266616-A (GB)
IPC: B23K31/02
Filed: 1969-11-12
Abstract: 1,266,616. Saw blades. FRY'S (LONDON) Ltd. 21 Oct., 1970 [12 Nov., 1969], No. 55433/69. Heading B5L. [Also in Division B3] A hacksaw, padsaw, jigsaw, bandsaw, bowsaw, circular saw or coping saw blade is made with a high speed steel cutting edge and a medium carbon steel backing. The steels are microplasma welded together.
Patent GB-1289092-A (GB)
IPC: H02K55/02
Filed: 1968-07-15
Abstract: 1289092 AC generators having superconducting windings INTERNATIONAL RESEARCH and DEVELOPMENT CO Ltd 14 Oct 1969 [15 July 1968] 33683/68 Heading H2A In an A.C. generator having a stationary superconducting winding 10, 11 for generating a magnetic field D which is cut by conductors 14 of a rotor 13 to generate an alternating e.m.f. therein, compensating means are provided for generating a magnetic field C in opposition to that A produced by current in the rotor conductors. The field C may neutralize the field A. or alternatively exert on the winding 10, 11 a torque opposing that resulting from current flow in the rotor conductors, and as shown is created by fixed coils 15 supplied with direct excitation current which may be varied, or the coils 15 moved, to vary the compensating field directions. The rotor conductors 14 may form a lPho or a polyphase winding and be of either a superconducting material, or a non- superconducting material cooled to a very low temperature. High pressure helium is used to cool the superconducting winding wires, which may be hollow. The coils 15 may have an independent current supply to carry the rotor conductor current; in the latter case, the coils 15 are connected to two stationary commutators engaged by pairs of rotary brushes connected to the rotor conductor loops, and rotary brushes are connected to the load via slip rings.
Patent GB-1290591-A (GB)
IPC: B01J21/00
Filed: 1970-03-24
Abstract: 1290591 Vanadium - on - alumina catalyst CHEVRON RESEARCH CO 24 March 1970 [25 March 1969] 14336/70 Heading B1E [Also in Division C5] A catalyst composition for the removal of vanadium from hydrocarbon feedstocks containing it in the form of soluble organometallic compounds comprises vanadium on support particles having an average pore diameter of greater than 300Š. Specified supports are charcoal, alumina, silica and silica-alumina. The vanadium is present in a quantity of 0.1 to 10 wt. %. In the Example vanadium is incorporated on a fused alpha alumina containing some silica of average pore diameter 830A by treating the alumina with an oxalic acid and solution of vanadium pentoxide.
Patent GB-1294949-A (GB)
IPC: G21C7/12
Filed: 1970-10-16
Abstract: 1294949 Control of stepping motors ROYAL INDUSTRIES Inc 16 Oct 1970 [4 Dec 1969] 49246/70 Heading H2J  The windings A-CC of a four-pole reluctance motor are each supplied by a six-phase controlled rectifier, M1-M6 respectively, utilizing SCR's, which rectifiers are energized sequentially, with alternately two and three windings simultaneously energized to produce a magnetic field rotating in 30 degrees steps. The SCR's in each controlled rectifier are triggered by a set of gate drives 12, A-CC respectively, connected to their gates. The alternation of the input supply a-f ensures quenching. An optical coding disc (14), Figs. 1 and 4 (not shown), with a set of contiguous circumferential tracks (A-CC) rotates, selectively interrupting the light input to a corresponding set of radially disposed photosensors (17), Figs. 1 and 4 (not shown), whose outputs are fed via a set of amplifiers (18), Fig. 1 (not shown), to the gate drives to control the energization sequence. An additional track (H) which may be omitted ensures, via hold signals to the drive motor control energizing motor 16 to rotate the disc, that the disc comes to rest only in a position with two windings energized. A half revolution of the disc corresponds to a complete revolution of the magnetic field. A second set of photosensors (17R), Fig. 4 (not shown), provide signals to a further set of gate drives and six-phase controlled rectifiers (not shown), the two sets of gates and controlled rectifiers, in parallel pairs, both feeding the windings A-CC. The rotor of the reluctance motor rotates in 15 degrees steps, and the system operates a control rod of a nuclear reactor.
Patent GB-1295471-A (GB)
IPC: A63B69/36
Filed: 1969-02-19
Abstract: 1295471 Golf training device J L W THOMAS 19 May 1970 [19 Feb 1969] 9060/69 Heading A6D A golf training device with a stand for placing on a surface has mounted on the stand a first member to represent a golf ball and a second member slidably mounted in a slide or track relative to the first member and in substantially linear relationship thereto and associated with this second member means is provided to anchor this member at a selected distance from the first member. Further the second member is also provided with means to indicate when it is struck by a golf club which has also struck the first member. Both members are resilient and capable of moving under the impact of the golf club. The means for indicating striking of the second member by the golf club may be aural e.g. bells, or visual e.g. an electrically operated light indicator. The preferred spacing between the members is about 9¢ inches. As shown, rod 16 represents the ball, and rod 18 the adjustable member along track 17, and 19 an indicator bell. Spikes 13, 14, and 15 may be present to fix stand 10, to the surface. In a modification the single bell may be replaced by two bells mounted on each end of a wire which passes through rod 18.