baber/WOPTO huggingface dataset:
Patent GB-1135106-A (GB)
Title: Process for preparing expanded polyvinyl chloride compositions
IPC: C08J9/06
Filed: 1966-10-17
Abstract: 1,135,106. Foamed coating. ESCAMBIA CHEMICAL CORP. 17 Oct., 1966 [26 Oct., 1965], No. 46387/66. Headings B2E and B2K. [Also in Division C3] Polyvinyl foam laminates are produced by blending a mixture of a dry free-flowing vinyl chloride polymer, which is substantially free from hydrophilic protective colloid, and a blowing agent, applying the mixture to a substrate such as paper, glass fibre, plastics, metal e.g. a copper tube, wood or cloth and heating to a temperature sufficient to cause fusion of the polymer and to decompose the blowing agent. The temperature is preferably from 360 to 600‹F and is maintained for 1 to 10 minutes. The polymer is a homopolymer of vinyl chloride or a copolymer of vinyl chloride with minor amounts of vinyl acetate, vinylidene chloride or diethyl maleate, and is produced by suspension polymerisation in which no hydrophilic protective colloid has been employed or by dissolving the polymer in a suitable solvent and precipitating therefrom in order to remove hydrophilic protective colloid. Plasticizers may be added to the original mixture in any amount, but preferably not more than 60 parts by weight per 100 parts of polymer. Other optional additives include stabilizers, lubricants, colour pigments and fibrous porosity promoters.
Patent GB-1405144-A (GB)
Title: Power circuit breaker assembly
IPC: H01H33/666
Filed: 1972-10-09
Abstract: 1405144 Switchgear structures; vacuum switches MEIDENSHA KK 9 Oct 1972 [15 Oct 1972 (2)] 46420/72 Heading H1N A vacuum circuit-breaker assembly comprisesa carrier 40, a supporting and insulating structure 44 mounted on the carrier and having a plurality of recesses in which vacuum interrupter units 16o ... 16c are mounted with their end plates 20A, through which the movable contacts 24a extend, positioned downwardly with the movable contacts projecting through the structure 44 fof operation by an operating mechanism 50. The end plates 18a ... 18c carrying the fixed contacts 22a ... 22c are not supported other than by the envelopes of the vacuum units. A conductor 26a ... 26c is secured to each fixed contact 22a ... 22c and held in position by a bolt 74. Each moving contact, as 24a, is slidable in an annular contact-making device 62 connected to a conductor 28a, which is secured to the end plate 20a by bolts 66, 66<SP>1</SP> extending through the structure 44. This insulating structure may be reinforced and additionally supported by insulating walls 54, 54<SP>1</SP> and a cross-member 56, or by curved insulating walls, Fig. 8 (not shown).
Patent GB-1240311-A (GB)
Title: Improvements relating to flying shears
IPC: B23D25/06
Filed: 1968-10-01
Abstract: 1,240,311. Flying shear. SCHLOEMANN A.G. 1 Oct., 1968 [6 Oct., 1967], No. 46556/68. Heading B3W. A flying shear comprises one, pivotally mounted, blade holder 6 and the other blade holder 8 driven by a rotatable crank 7 so that the blades are moved into the cutting zone at the same speed and in the same direction as rolled stock to be cut, the throw r of the crank being adjustable and the distance between the axis of rotation of the crank and the pivot axis of the holder 6 being variable. Two crankshafts are provided, each crank-shaft including two parts 47, 48, the part 48 being movable relative to the part 47 to vary the throw by means of a spindle 45 rotatable but not axially movable in the part 47 and in threaded engagement with a nut 45A fixed to the part 48. To vary the distance between the cranked pivot shaft 5 on which the holder 6 is mounted and the axis of rotation of the crank 7 side plates 3, 4 in which the cranks are journalled are adjustable relative to the base members 1 and 2 in which the shaft 5 is journalled by means of adjustment spindles 60, 61. The two adjustment spindles are connected by gearing so that they are simultaneously actuated when an adjustment shaft 55 is rotated which rotation also, and to a corresponding degree, varies the throw of the crank 7. The spindle 45 is connected through bevel gears 42, 43 with a shaft 41 which passes through the hollow crank-shaft 46 and is normally rotated at the same speed as shaft 46. Rotation of the adjustment shaft 55 through the spindle 60 and a planetary gear system 33 causes the shaft 41 to rotate relative to the crank-shaft 46 and thus displace the crank-shaft part 48 relative to part 47. Movement of shaft 41 is transmitted to the corresponding shaft 54 associated with the other crank through gears 49, 50, 52 and 53 and shaft 51. A single drive shaft 12 drives one crank 7 through gearing 13-15, shaft 22, gears 23, 24, 26 and 27 and the other through shaft 25 and gears 30, 31. The shaft 12 also drives the shaft 5 through a variable gear arrangement 16-21 which allows a cutting stroke to be carried out at every or every alternate rotation of the cranks 7. The blade holders 6 and 8 are connected to each other by an eccentric pivot (Fig. 3, not shown) adjustable to vary the overlap of the blades.
Patent GB-1038488-A (GB)
Title: Machine for the continuous dosed filling and the automatic hermetic closing of synthetic plastic bags
IPC: B65B3/32
Filed: 1963-11-26
Abstract: 1,038,488. Packaging liquids and fluent-solid materials. CENTRA ANSTALT. Nov. 26, 1963 [Jan. 17, 1963], No. 46607/63. Heading B8C. A machine which fills synthetic plastic bags, each with a predetermined quantity of liquid or fluent-solid material comprises a continuously rotatable drum 1, Figs. 1 and 2, filling stations 3, 3<SP>1</SP>, 311 etc. fixed to the drum and an oscillating turn-table 14 which carries a bag-feeding station 73, a thermo-welding station 16, a weld-cooling station 17 and a discharge station 18. Each filling station has suction jaws 4, 5 which hold, open and close a bag and a tank 8 provided with a valve 11 which alternatively connects the tank to a reservoir 9 or to a discharge tube 13. The volume of material held by tank 8 is determined by a position adjustable piston 40. In operation a bag is sucked from a stationary tube 15 and brought to filling station 3<SP>1</SP> where it is placed between jaws 4, 5 by a device 72, Fig. 3 (not shown), reciprocated by movement of table 14. Each jaw is provided with groups of suction holes 46, 47, Fig. 5 (not shown), which are all operative during a slow initial opening of the jaws, only central groups 46, however, being operative during a relative fast completion of opening. The movement of the jaws is caused by a roller and cam mechanism 27, 28, Fig. 1, and when appropriate, tank 8 is vertically reciprocated by co-operation of roller and cam mechanism 71, 70, and valve 11 is horizontally reciprocated by cams 33, 33<SP>1</SP>, Fig. 2. The jaws 4, 5, Fig. 6a (not shown), carry thereabove plates 102, 103 which may be of stainless steel and from which are suspended nets 82, 83 of P.T.F.E. which hang between the jaws 4, 5 to prevent sticking of the bag thereto. When at station 16, they hang between electrically heated sealing jaws 75, 76, as shown, and furthermore hold the bag after withdrawal of these jaws. The associated suction lines, Figs. 7 and 8 (not shown), are provided with ball valves 58, 65 which operate diaphragms 61, 66 and hence latches 44, 45 which control reciprocation of tank 8 only provided that the central groups of holes 46, 48 of the jaws 4, 5 respectively, are covered by the edges of the bag. The timing of the suctions is due to the co-operation of fixed ducts 51, 52, 53 in frame 2 and moving orifices 54, 55, 56 in Table 1.
Patent GB-1532956-A (GB)
Title: Electric encoding arrangements
IPC: H03M1/00
Filed: 1974-10-29
Abstract: 1532956 Analogue to digital conversion GENERAL ELECTRIC CO Ltd 24 Oct 1975 [29 Oct 1974] 46751/74 Heading H3H In an a#d converter a capacitor is charged by the input analogue for a period dependent upon the input magnitude, the capacitor discharge time producing part of a pulse group representing the input magnitude. An input analogue is rectified at 4, a polarity signal produced at output S, and a voltage proportional to the input sampled and held in store 6. The sample is fed to capacitor 12 of integrator 13 for one clock period, the capacitor then discharged to reference level 17. Dependent on that discharge time a range signal is produced, outputted at 9, which controls the period during which the sample is again fed to the capacitor. The discharge time of the second phase is counted at 18 and presented in 4 digit form at output 10. In case of a wrongly ascribed second presentation time means are provided for altering the range signal at 9 so the output 10 is always in 4 digit form.
Patent GB-1359188-A (GB)
Title: Bissalicyloyl-hydrazines as stabilisers for polymers
IPC: C08K5/24
Filed: 1971-10-07
Abstract: 1359188 Bis-salicyloyl-hydrazines CIBAGEIGY AG 7 Oct 1971 [8 Oct 1970 16 Aug 1971] 46776/71 Heading C2C [Also in Division C3] The invention comprises compounds of the formula in which R 1  denotes alkyl with 1 to 18 carbon atoms, alkenyl with 3 to 4 carbon atoms, cycloalkyl with 6 to 8 carbon atoms, aralkyl with 7 to 9 carbon atoms, alkoxy with 1 to 18 carbon atoms, or phenyl, R 2 , R 3  and R 4  independently of one another denote hydrogen, alkyl with 1 to 18 carbon atoms, alkenyl with 3 to 4 carbon atoms, cycloalkyl with 6 to 8 carbon atoms, aralkyl with 7 to 9 carbon atoms, alkoxy with 1 to 18 carbon atoms or phenyl and R 1  and R 3  independently of one another also denote hydroxyl, carboxylic acyloxy with 2 to 18 carbon or carboxylic acylamino with 2 to 18 carbon atoms. Such compounds are prepared by (a) reacting appropriate salicylic hydrazides and salicylic acid chlorides, (b) heating an appropriate salicylic hydrazide at temperatures of 120-200‹ C. in a suitable solvent with elimination of one mol. of hydrazine or (c) by reacting one mol. of hydrazine with two mols. of an appropriate salicylic acid chloride. The preparations of the unsubstituted compound and chloro-substituted compound of the above formula are also described. Examples are furnished. The products are employed as stabilizers in polymers, specially in polyolefine compositions (see Division C3).
Patent GB-1466656-A (GB)
Title: Finned tubular heat-exchanger elements
IPC: F28F1/24
Filed: 1975-11-13
Abstract: 1466656 Finned heat exchanger tubes UNITED STIRLING (SWEDEN) AB & CO KB 13 Nov 1975 46825/75 Heading F4S Fins 2 extending laterally from a heat exchanger tube 1 are formed by a pleated strip shaped so that in the transverse cross-section of the finned tube (Fig. 1) each fin 2 embraces approximately half the tube circumference, the fin edges being cut at an angle so that (a) the fin is of increasing width in the direction in which it extends laterally from the tube, and (b) the minimum width of the fin (i.e. at the bend portions 3) is larger than the outside diameter of the tube by less than 25% of the said outside diameter.
Patent GB-1395364-A (GB)
Title: Smoothing cylindrical workpieces
IPC: B24B39/04
Filed: 1972-10-12
Abstract: 1395364 Rolling WILHELM HEGENSCHEIDT GmbH 12 Oct 1972 [13 Oct 1971] 47133/72 Heading B3M A smoothing head for a cylindrical workpiece 1 comprises a cage 20 for a set of rollers 2 and the axes of the rollers are inclined to the workpiece axis 15 so as to produce an axial force during rolling which acts against the workpiece advancing force. The workpiece is preferably not allowed to rotate and the rollers engage the inner surface of a rotatable conical sleeve 4 driven by a belt 18. The cage is spring-biased 3 towards the wider end of the sleeve and moved into the tapered bore of the sleeve by a non- rotatable pressure ring 5. The ring 5 is connected by bolts 12 to a ring 11 which is moved rightwards against spring-bias 10 by hydraulic piston cylinder units 7, 8 formed in a fixed part 6 of the head. The rollers are released from the workpiece by oppositely acting hydraulic pistoncylinder units (16), Fig. 3 (not shown).
Patent GB-1114965-A (GB)
Title: Electric pressing iron water level gauge
IPC: D06F75/14
Filed: 1966-10-21
Abstract: 1, 114, 965. Indicating liquid levels. SUNBEAM CORPORATION. Oct.21, 1966 [Oct. 21, 1965], No.47409/66. Heading G1H. [Also in Division D1] In an electric steam and spray iron, a water gauge 45 associated with the water tank 48 is exposed by an opening 46 in an inclined part of the iron when it is in ironing position. As shown, the reservoir 28 is made from two stainless steel sections 28a, 28b, and is filled through an opening 30 in which is mounted the spray nozzle 36. The gauge consists of a transparent tube 47 connected by connectors 48, 55 of silicone rubber to the tank 28 and contains a preferably brightly coloured floating ball 64 to indicate the water level, tube 47 having a brightly coloured line on its rear side. An escutcheon 60 is placed in opening 46 surrounding tube 47 and carrying indicia indicating the water level in tank 48.
Patent GB-1475570-A (GB)
Title: Apparatus for the automatic antiseptic treatment of water
IPC: C02F1/76
Filed: 1974-11-01
Abstract: 1475570 Disinfecting water MINES DE POTASSE D'ALSACE SA 1 Nov 1974 [5 Nov 1973] 47412/74 Heading ClC Apparatus for the treatment of water by the action on bromide ions of hypochlorite ions the quantity of which is regulated in response to measurement of the amount of active bromine present in the treated water, comprises a main circuit with pumping means which effect the circulation of the treated water and filtering means, wherein the system includes (a) a first branch circuit comprising a pipe connected to the main circuit having a valve the opening of which is controlled by measurement of the amount of active bromine in the treated water, said pipe feeding into a storage vessel which provides a supply of the hypochlorite, and a pipe for the discharge of the hypochlorite and its introduction into the main circuit downstream of the filtering means, and (b) a second branch circuit comprising a pipe which is connected to the main circuit before the point of injection of the hypochlorite, a cell for the measurement of the amount of active bromine in the treated water and a pipe for the delivery of the water from the cell. Specification 1,327,531 is referred to.
Patent GB-1324518-A (GB)
Title: Photographic products and diffusion transfer processes
IPC: G03C8/48
Filed: 1970-10-06
Abstract: 1324518 Photographic dye-diffusion colour materials POLAROID CORP 6 Oct 1970 [7 Oct 1969] 47529/70 Addition to 1234532 Heading G2A and G2C A photographic film unit which may be processed by passage through the nip of a pair of rollers comprises a photo-sensitive element comprising a composite structure containing layers secured in superposed fixed relationship and comprising, in order, a first support, a photo-sensitive silver halide emulsion layer having associated therewith a compound providing, as a function of development of the associated silver halide emulsion, an imagewise distribution of a dye image-providing material which is soluble and diffusible in alkali at a first pH, an alkaline solution permeable polymer layer dyeable by the dye image-providing material, a second, transparent support; and first and second rupturable compartments separately retaining first and second aqueous alkaline processing compositions, the first composition containing dispersed therein an opacifying agent and the second composition containing dispersed therein a reflecting agent, fixedly positioned and extending transverse the photo-sensitive element to effect uni-directional discharge of the first and second compositions, in order, layerwise, intermediate the emulsion layer and the dyeable polymeric layer next adjacent thereto, the first and second compositions, taken together, possessing a pH and solvent concentration which the dye imageforming material is soluble and diffusible and in which the opacifying and reflecting agents taken together are present in a quantity sufficient, upon distribution, to mask the emulsion layer and to prevent exposure of the emulsion layer during processing in the presence of radiation activic thereto and incident on the second support layer, the film unit additionally including means for rendering the dye image providing material substantially non-diffusible. The rupturable compartments may be arranged one on each side of an alkaline solution permeable, polymeric sheet between the dyeable polymeric layer and the adjacent emulsion layer. The compartments may alternatively be located one above the other in the the film unit and the pressures necessary to initiate discharge of the compositions may be different. The compartments may be at different ends of the film unit. The reflecting agent may be titanium dioxide and the opacifying agent carbon black. At least one of the processing compositions may contain a film-forming polymeric material e.g. hydroxyethyl cellulose. The compound providing the dye image-providing material may be a dyedeveloper. The diffusibility of the dye imageproviding material may be controlled by solvent concentration in the processing composition which is in turn controlled by the processing composition solvent vapour permeability of the supports. Alternatively a dye image-providing material impermeable polymeric layer may be interposed between the dyeable polymeric layer and the adjacent emulsion layer after transfer image formation.
Patent GB-1378586-A (GB)
Title: Methods of manufacturing bricks or like products moulds for use  with said methods and bricks for like products obtained by said  methods
IPC: B28B7/00
Filed: 1972-10-16
Abstract: 1378586 Moulding bricks J.W E ARIENS 16 Oct 1972 [11 Sept 1972] 47551/72 Heading B5A Bricks &c. are produced in moulding boxes which have previously been flushed with water and sprinkled with dry sand before being filled with clay, the green bricks produced being removed, dried and baked and part of the flushing water is retained in slots in the walls of the moulding boxes so as to produce embossments of sand on sprinkling therewith and form corresponding grooves in the bricks formed, the embossments being sheared off on removing the green brick from the mould. The embossments may fall off the brick during baking. The slots are preferably so shaped that the water is retained by capillary action. A grate is preferably inserted between the open top of a moulding box and the nozzle of a clay press during filling, the grate having an aperture over each moulding cavity smaller in all directions than the cavity.
Patent GB-1444812-A (GB)
Title: Therapeutic non-woven fabric
IPC: D04H1/4266
Filed: 1973-10-12
Abstract: 1444812 Collagen staple fibre NIPPI Inc 12 Oct 1973 47762/73 Heading B5B [Also in Divisions C3 and D1-D2] Staple fibres of tanned collagen fibres are spun from solubilized collagen that is essentially telopeptide free. Collagenous material (specified) is treated with either a protease in an acidic aqueous medium or an amine, alkali and sodium sulphate in aqueous medium, whereby there is obtained for spinning a monomolecularly dispersed solution of collagen free of telopeptide linkages, the spinning solution containing 1- 10% w./v. collagen, pH 2-4, is extruded at a draw ratio of between 1À5 and 30 through a spinneret with 330 holes of 0À08 mm. diameter into a saturated sodium sulphate solution of pH 3-4 to form spun collagen fibre, the fibre is cut and tanned (in either order) to form tanned collagen staple fibre and non-woven fabric is formed from staple fibres in a conventional manner.
Patent GB-1492735-A (GB)
Title: Drilling machines
IPC: B66F11/04
Filed: 1974-11-27
Abstract: 1492735 Rock drill booms LIFTEC ENG Ltd 27 Nov 1974 [13 Oct 1973] 47927/73 Heading B3C In a drilling machine for boring holes in a rockface, a table 5 carries a drilling head 4 and a workman's cage 10 or platform mounted on a hydraulically operable hinged boom structure 11, 12 carried by the table for positioning the cage or platform relative to the face for access to the drilled holes. As shown, table 5 is vertically adjustable, by hydraulic actuators (not shown) utilizing scissor linkage 6, on a wheeled chassis 1 which carries a further drilling head 3. One or both booms 11, 12 may be telescopically and hydraulically extensible and are pivoted by actuators 13, 14. Boom support 8 may be mounted on a turntable 9. A mechanical linkage (not shown) between cage 10 and support 8 and extending along the booms may be employed to maintain the orientation of the cage constant regardless of position.
Patent GB-1148204-A (GB)
Title: A circuit for detecting a current or a voltage of predetermined magnitude
Inventor: DUTILLOEIL GEORGES
IPC: H03D1/22
Filed: 1966-10-27
Abstract: 1,148,204. Detecting signals within limits. ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI. 27 Oct., 1966 [3 Nov., 1965], No. 48250/66. Heading H3T. In a fail safe circuit for detecting whether a signal is within a given range of magnitude, the signal is applied to an amplifier to block or saturate the (or one of the) amplifying elements if it passes outside the range so that an oscillation input is amplified to provide an output indication or is effectively blocked according to whether the signal is within or without the range. Thus the amplifier stage 1 (Fig. 5) is blocked if the signal applied to the base terminal 2 is such as to cut-off or saturate the transistor. Between these limits the circuit amplifies an oscillation applied at 5. The output at 9 is applied to a further amplifier having a threshold such that if short circuit occurs between the collector and base of transistor 1 the further amplifier produces no output. If desired the output may be rectified. The arrangement shown is an " Exclusive OR " circuit since the bias applied by the previous stages 39-41 to the transistor 1 is within the range only if one and one only of the previous transistors is not conductive. The circuit of transistor 1 may monitor a current if the oscillation input transformer 5 is connected in series with the emitter (Fig. 2, not shown). The amplifier may be of the long-tail pair type in which case two signals to be compared may be applied to respective bases. If they differ by more than a given amount one or other will be cut off so that the tail resistor applies heavy negative feedback to the other and transmission is effectively blocked. The oscillation input transformer may be connected between one emitter and the tail resistor (Fig. 4, not shown) and the output from the two transistors applied to an AND circuit is that only if both transistors are effective does the AND circuit produce an output. This circuit fails safe even upon failure of the tail resistor.
Patent GB-1325739-A (GB)
Title: Individual needle control means for circular warp knitting machines
IPC: D04B25/02
Filed: 1970-10-12
Abstract: 1325739 Knitting-machines RENFRO HOSIERY MILLS CO 12 Oct 1970 [13 Oct 1969] 48325/70 Heading D1C A circular warp machine includes a ring 36 which when lowered, lowers all the needles to a loop drawing level and which carries slides 40 which can be set individually to determine how far the needles are raised when the ring is raised. The slides are positioned by projections 44 engaging selectively movable cams 50. The slides may be positioned radially inwards of the ring, as shown, radially outwards or in an intermediate position. In the inner and intermediate positions respectively the top of the slide, or a ledge 40a, engages under the needle butt 11 and raises the needle to the clearing or tuck position respectively. In the outer position the slide misses the butt, which is then raised slightly by the bottom of the ring as it completes its stroke. The centering cam 50 is set in the. required position by electromagnets 52, 53.