baber/WOPTO huggingface dataset:
Patent GB-1001632-A (GB)
Title: Improvements in or relating to the manufacture of thermoplastic sheet material
Inventor: WEBB WALTER WESTON
IPC: B32B27/00
Filed: 1960-11-21
Abstract: 1,001,632. Lammates and laminating; moulding sheet material. IMPERIAL CHEMICAL INDUSTRIES Ltd. Nov. 21, 1961 [Nov. 21, 1960: Feb. 22, 1961], Nos. 39913/60 and 6528/61. Headings B5A and B5N. [Also in Division B2] A thermoplastic material having a pile surface, such as 9, Fig. 2, is made by applying a sheet or coating of thermoplastic material 1, Fig. 1, to the underside of the restraining element 2 having interstices, preferably a textile or metal woven, unwoven or knitted fabric having 750-10,000 interstices per sq. inch, placing a spacing element 4 on the upper side of the restraining element, heating to soften the thermoplastic material, and applying mechanical pressure to both sides of the assembly as by platens 5, 6 to force the whole or part of the thermoplastic material through the interstices of the restraining element and into the spaces provided by the spacing element, in the form of fibrils which constitute the pile, the spacing element being then removed. To reinforce the restraining element a metal mesh 3, subsequently removed with the spacing element, may be placed between the two elements. An additional thermoplastic layer, which may be of material different from that of the first, may be applied to the underside of the material. The spacing element 4 preferably comprises an aluminium or other metal frame divided into cells, which may be of rectangular, hexagonal or diamond formation, and the walls of which may be so thin as to have no effect on the pile produced or may be deliberately thickened to leave a geometrical pattern in the pile. Two superposed sheets 1 of different colours may be used to give a mixed two-colour pile, or portions may be cut out of sheet 1 and replaced by pieces of different colour to give multicoloured products. Patterns formed by piles of different length are secured by placing additional pieces of thermoplastic material on the sheet 1 in selected positions. The thermoplastic materials may comprise plasticized or unplasticized polythene, polypropylene, polyethylene terephthalate, polyamides, polyvinyl chloride, polyvinylidene chloride, polyvinyl acetate, polystyrene, and vinyl copolymers such as vinyl chloride / acetate, vinyl / vinylidene chloride, and vinylidene chloride/acrylonitrile copolymers. The fabric may be of natural or synthetic fibres, those mentioned being cotton, polyethylene terephthalate, nylon and glass fibres. In apparatus, Fig. 11, for making the product continuously a thermoplastic sheet 1 and fabric 2 are passed between heaters 22, 24 which soften the sheet and warm the fabric, and are then passed between a smooth roller 25 and a roller 26 the surface of which is formed with honeycomb-like cells constituting the spacing element. The product emerging possesses a pile of thermoplastic fibrils as at 27. Instead of two rollers a roller co-operating with a belt, or two belts, may be used.
Patent GB-1109763-A (GB)
Title: Fluid operable piston and cylinder assemblies
Inventor: LITHERLAND JAMES ALBERT FRAZIE
IPC: F16J15/32
Filed: 1964-10-01
Abstract: 1,109,763. Pistons. B.A.L. Ltd. 21 Sept., 1965 [1 Oct., 1964], No. 39946/64. Heading F2T. A piston-and-cylinder assembly comprises a piston body 1, resilient packing 15 and a bearing ring 17 which locates the packing adjacent a peripheral shoulder on the body. As shown in Fig. 1 for a double acting piston, a packing 15 and a bearing-ring 17 are disposed on each side of an annular flange 13 on the body 1 and each packing comprises nested rings 15a, the ring adjacent the flange carrying an anti-extrusion ring 16. Each ring 17 is mounted in a groove 14 in the body 1 and has a tongue 17a engaging the adjacent packing ring. Grooves 18 in the bearing rings 17 allow fluid pressure to act on the packing rings. The rings 17 are split and of synthetic resin material. In a modification, Fig. 2 (not shown), the resilient packing comprises a single ring (20). In a further modification the ring 17 is made of metal and formed from two halves.
Patent GB-953601-A (GB)
Title: Process for the manufacture of margarine
IPC: A23D7/01
Filed: 1961-11-09
Abstract: The emulsifier used in margarine production is a gel obtained by combining lecithin with an aqueous medium, e.g. water, and heating, e.g. to 70-100 DEG  C.  The gel may contain 5-7.5% of lecithin.  The lecithin is preferably at least 0.2% of the margarine.  In preparing the gel, the aqueous medium is preferably buffered by sodium bicarbonate, mono- or di-phosphate, or citrate at pH 7.5-9.  The lecithin used may be bleached lecithin obtained by vacuum and hydrogen peroxide treatment of the residue of steamtreated raw soya oil.  The gel may be dispersed in the aqueous ingredient of the margarine for addition to the fat ingredient, or the gel may be added to the fat ingredient of the margarine before the aqueous ingredient is incorporated.
Patent GB-1463977-A (GB)
Title: Apparatus for distributing articles into receptacles
IPC: B65B35/36
Filed: 1973-08-25
Abstract: 1463977 Filling receptacles AUTO EGG (BRISTOL) Ltd 27 Aug 1974 [25 Aug 1973 24 Oct 1973] 40381/73 and 49574/73 Heading B8C Apparatus for filling receptacles 2 on a platform 3 with articles comprises a group of pockets 6 arranged to receive individual articles from a conveyer C and a release mechanism controlled so as to be operated automatically when the pockets are full to open the pockets simultaneously so that the articles fall into a receptacle or receptacles on the platform. A grading station controls the release of eggs from a conveyer cup into pockets formed by moulded inserts 9a 9b on walls 7a 7b. A cam 19 is advanced each time a pocket is filled so that when all the pockets are filled it pivots the walls, through links 15, 16 and pivoted plates 10, 11, to open the pockets. The cam 19 may also advance the receptacles which may comprise two lines of egg cartons side-by-side or egg trays. The platform is mounted on hollow elastomeric or foam cylinders 4. To facilitate cleaning the wall 7a is releasably mounted.
Patent GB-1188726-A (GB)
Title: Screening Apparatus
IPC: D21D5/06
Filed: 1967-09-06
Abstract: 1,188,726. Screening apparatus. BELOIT CORP. 6 Sept., 1967 [3 Oct., 1966], No. 40698/67. Heading BID. Slurry (e.g. paper stock) enters at 14, flows in a volute path into a chamber 15 surrounding concentric cylindrical screens 16, 20, flows in parallel inwardly through these screens into a trough 17 and out through a main outlet 27. One or more outlets (e.g. 31, 29, 24) are provided for the reject fraction. The screens are kept from clogging by rotating foils 35, 37 positioned adjacent their respective outer surfaces. As described, the densest reject fraction is collected in a trough 28 by virtue of the centrifugal force created by the tangential inlet flow. An intermediate reject fraction collects by gravity in a trough 30. The lightest reject fraction together with untreated slurry floats over the weir constituted by screen 16 and enters annular space 25, reject leaving at 33, slurry passing through screen 20. Collection trough 17 may be partitioned (100, Fig. 3, not shown) to collect accept from the two screens separately; these screens may have different porosities. Each screen 16, 20 is supported by a grid 16a, 20a and backed by an impervious wall 16b, 20b, respectively. Dilution water may be introduced into chambers 15, 25 (Fig. 2, not shown). The foils 35, 37, which are circumferentially elongate in plan section, and may be connected by a ring 73, are rotated by a hub 64 mounted on a central shaft 50 driven by V-belts 90.
Patent GB-907816-A (GB)
Title: Merchant marine ship reactor
IPC: D04H11/08
Filed: 1959-12-02
Abstract: 907,816. Reactors. UNITED STATES ATOMIC ENERGY COMMISSION. Dec. 2, 1959 [Jan. 29, 1959], No. 40895/59. Class 39 (4). In a pressurized water reactor using H 2 O, the coolant passes three times in succession through the core. Fig. 1 shows a core 34 surrounded by stainless steel thermal shields 36, 38, 42 and by upper and lower baffle assemblies 46, 44. Coolant enters at 14, flows up over the thermal shields, into an annular outer part of the upper grid plate 48, down through an outer ring of fuel elements, through tubes in the lower baffle assembly 44 to the bottom part of the shield 38 where there are radial baffles 86, up through tubes in the assembly 44 and through the inner fuel elements, through tubes in the grid plate 48 and the assembly 46, and between radial plates to outlets 16. The shield 42 is suspended from a ring 54; the shield 38 rests on the ring through a skirt 64 and carries the core and the lower baffle assembly on a flange 68. A spring support ring 266 is pressed down by the top closure of the pressure vessel on to the radial plates of the baffle assembly 46 to hold down the core and other reactor internals. This reactor construction is intended for marine use. The fuel consists of slightly enriched UO 2  compacts in stainless steel tubes sealed by concave closures; initial internal clearances are provided, as are insulating spacers and a filling of He. The enrichment is 4.6% in the outer fuel elements and 4.2% in the inner fuel elements. Fuel tubes 94 separated by stainless steel ferrules are strapped in bundles, Fig. 5, and enclosed in cans, Fig. 8, formed from four angles joined by strips 144; these strips space the cans to allow channels for cruciform control rods 52 and followers. The fuel bundles have end pieces 112, 114; the upper end has a spring 132 of a Cr-Ni-Fe alloy to hold the bundle down and allow expansion. An alternative arrangement has four smaller bundles fastened together, Fig. 21 (not shown). Spring-loaded hydraulic shock-absorbers 202 for the control rods are carried by the baffle assembly 44. The pressure vessel is of carbon steel with a stainless steel lining. Specification 817,751 is referred to.
Patent GB-1194392-A (GB)
Title: Coating Ferrous Material with Copper and its Alloys
Inventor: YAJIMA TAKASHI
IPC: C23C2/04
Filed: 1967-09-07
Abstract: 1,194,392. Coating with copper by hot dipping. T. YAJIMA. Sept. 7, 1967, No. 40899/67. Heading C7F. Ferrous material such as iron, steel and cast iron is coated with Cu or Cu alloys by hot dipping for 2 to 40 seconds in a first molten bath of the metal in a non-oxidizing atmosphere, coating the coated product to 700‹ -800‹C. and then dipping for 1-30 seconds in a second molten bath of the metal in a non-oxidizing atmosphere which bath is at a temperature 50‹ -100‹ C. lower than that of the first bath. More than two molten baths may be used and the temperature difference between the first and last being 50‹ -200‹ C. The coating metal may be aluminium bronze and as shown in Fig. 1 ferrous strip 1 after cleaning and fluxing is passed via rolls 2 through bath 5, is cooled at 7 and passes into second bath 9. The coated strip is then cooled in zone 11 and coiled. The coated product may be hot or cold rolled.
Patent GB-1166248-A (GB)
Title: Improvements in Laser Modulation.
IPC: H01S3/102
Filed: 1966-09-13
Abstract: 1,166,248. Lasers. UNITED AIRCRAFT CORP. 13 Sept., 1966 [14 Sept., 1965], No. 40941/66. Heading H1C. The output of a laser is modulated by focused ultrasonic energy applied to the active medium, the wavelength of the acoustic wave being from one tenth to three times approximately equal to the width of the laser beam so as to produce a periodic refractive index perturbation in the medium. Oscillations over the whole line width are obtained during the alternate half cycles when the refractive index at the centre of the medium reaches a maximum, while light ray divergence and hence interruption of the laser output by Q-spoiling occurs during the half cycles when the centre refractive index reaches a minimum. Consequently, when the laser is pumped by a flash lamp, a series of uniform and equispaced output spikes is obtained, Fig. 3 (not shown). A laser is shown in Fig. 1 which comprises a laser rod 10 of neodymium-doped barium crown glass, one end 12 being silvered while the other end is uncoated and serves as a partially reflecting mirror. Pumping is effected by a xenon flash lamp 14 having a triggering circuit 26. Two semi-cylindrical BaTiO 3  transducers 18<SP>1</SP>, 18<SP>11</SP> having concentric electrodes 22, 24 are bonded to the laser rod by an epoxy adhesive, transducer 18<SP>1</SP> being a generator of acoustic waves and transducer 18<SP>11</SP> a receiver. These transducers are coupled by an amplifier 20 so as to provide a positive feedback circuit generating acoustic oscillations at the required frequency. In a modification a single cylindrical transducer driven by a generator is used and external parallel reflectors forming the resonator may be provided. Reference has been directed by the Comptroller to Specification 1,068,515.
Patent GB-1370684-A (GB)
Title: Ignition system for internal combustion engines
IPC: F02P3/05
Filed: 1971-09-02
Abstract: 1370684 Ignition systems PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 2 Sept 1971 [5 Sept 1970] 41012/71 Heading F1B An ignition system includes a semi-conductor switch 6 to be connected between a supply source V B  and an ignition coil 7 and a central circuit 5 which is connected to a control input from a contact breaker 3 and also to the control electrode of the semi-conductor switch. The control circuit includes a control pulse generator which on reception of a control signal applies to the semiconductor switch a control pulse of a duration which is determined by a resistance - capacitance network so that a given energy is stored in the ignition coil, which energy is released at the instant of the trailing edge of the control pulse to be dissipated in the form of sparks. The control pulse generator includes at least one voltage reference element and the time duration of the control pulse is substantially proportional to RC log VB/VB-VR where RC is the time constant of the resistance capacitance network, V B  is the supply voltage and V R  is the voltage of the voltage reference element. As shown the control pulse generator includes a transistor 14 and a Zener diode Z and an invertex stage comprising a transistor 16. The switch 6 includes two transistors 10 and 11 comprising a Darlington pair. The control pulse generator may be a Schmitt trigger, a series combination of a resistor and a capacitor being connected as the  resistance capacitance network between the supply terminals of the Schmitt trigger. Alternatively the control pulse generator may be a monostable multi-vibrator circuit the switch 6 being a Darlington pair. Other modifications are described.
Patent GB-1067238-A (GB)
Title: Determination of glucose
IPC: C12Q1/54
Filed: 1964-10-08
Abstract: Glucose is determined by contacting the sample, e.g. of blood, to be tested with a reagent solution comprising glucose oxidase, catalase, an alcohol, a b -diketone and an ammonium salt, and determining the optical density of the developed colour.  The reagent may be produced from a test pack comprising (a) a mixture of glucose oxidase and catalase, (b) an alcoholic solution of an ammonium salt and (c) an alcoholic solution of a b -diketone. Specified alcohols are methyl and ethyl alcohols; specified b -diketones are acetylacetone, methylacetoacetate and ethylacetoacetate; specified ammonium salts are ammonium acetate and mono-and di-ammonium phosphate.  In the examples, the specified ingredients are made up with water to form an aqueous solution.
Patent GB-981479-A (GB)
Title: Back hoe excavator for digging ditches
IPC: E02F3/42
Filed: 1963-10-17
Abstract: 981,479. Shovelling machines. KRUPP-DOLBERG G.m.b.H. Oct. 17, 1963 [Oct. 18, 1962], No. 41116/63. Heading E1F. In a back hoe shovel excavator a rocker arm 4 bearing the jib pin 8 is mounted to turn about a vertical pin 5 on the revolving platform 1 of the excavator and can be secured by bolts to the platform in one of a number of preselected positions with respect to the platform. The scoop arm 10 of the excavator can be supported either in the vertical central plane of the jib 7 or in lateral planes parallel thereto.
Patent GB-1523725-A (GB)
Title: Carpet securing devices
IPC: A47G27/04
Filed: 1975-09-18
Abstract: 1523725 Carpet securing devices COBRA METALS Ltd 18 Sept 1975 [21 Sept 1974] 41213/74 Heading A4S A carpet securing device comprises an elongate metal strip 1 having spikes 2 on one of its faces for engaging a carpet and legs 4 bent from the strip and extending from the other of its faces for engaging a floor to space the spiked surface of the strip from the floor, and one or more retainers 6 each comprising a point 7 for engaging a skirting board and spaced legs providing opposed recesses 12 for engagement by the longitudinal edges of the strip to retain the strip. The strip 1 or the or each retainer 6 may be resiliently deformable to permit the strip being sprung into position in the recesses 12. A punch (13), Fig. 5 (not shown), may be fitted over the retainer 6 to facilitate hammering the point 7 into the skirting board. The strip has nail holes.
Patent GB-1176590-A (GB)
Title: Improvements in or relating to Cushion Relief Valves
Inventor: FEROY ARNE
IPC: F16K17/04
Filed: 1968-08-29
Abstract: 1,176,590. Valves. AMADYNE Inc. 29 Aug., 1968, No. 41276/68. Heading F2V. A relief valve has a progressively variable spring loading adapted to vary automatically to produce a cushion action on the associated hydraulic system. The valve has a primary piston 6 loaded by spring 17 and movable to the right by high pressure fluid applied through inlet 2, annulus 4 and bore 13 to chamber 12. When land 5 on piston 6 uncovers annulus 8 fluid can flow from inlet 2 via bores 9 to outlet 3. Annulus 4 is also connected via a conduit 21 and a metering device to a chamber 19 which, when pressurized, moves a second piston 18 to the left towards a stop 20 to increase the loading of spring 7 urging piston 6 to the left. The metering device comprises an orifice 31 which feeds chamber 19 via an annular space 24 (Fig. 5) around piston 18, which space reduces in effective cross-section as piston 18 moves to the left, so progressively decreasing the rate of increase of the spring loading on piston 6 as the pressure in inlet 2 increases. The Specification states that the shape of space 24 can be altered to produce a number of different operating characteristics.
Patent GB-866324-A (GB)
Title: Preparation of cellular polyurethane
IPC: C08J9/00
Filed: 1958-12-22
Abstract: Cellular polyurethanes are obtained by reacting a polyalkylene ether of Mol. wt. at least 400 and having terminal -OH and/or -NH2, water, an organic polyisocyanate, and an organo silicon compound having at least one hydroxyl group.  Suitable organosilicon compounds are silanols and siloxanes having one or more -OH, e.g. diethyl- and diphenyl-silanediol; triphenyl silanol; tetramethyl, tetraethyl and tetraphenyl disiloxanediol; or an ester formed from a silanol or a siloxane and adipic or succinic acid.  The polyethers described are the usual ones (but include polythioethers) together with the poly addition products of polyacetals and olefines of the type disclosed in Specification 866,323.  They may be used in conjunction with other polyfunctional compounds.  The polyisocyanates are the usual ones, and they may contain chlorine, nitro or alkoxy substituents. The trimerized products of monomeric diisocyanates and the reaction product of a polyol with a diisocyanate can also be used. A prepolymer may be formed, or not, as desired.  A tertiary amine catalyst may be used.  Specifications 769,680 and 769,682 also are referred to.ALSO:Cellular polyurethanes are obtained by reacting a polyalkylene ether of Mol-wt. at least 400 and having terminal-OH and/or -NH2, water, an organic polyisocyanate, and an organo silicon compound having at least one hydroxyl group.  Suitable organasilicon compounds are silanols and siloxanes having one or more -OH, e.g. diethyl- and diphenyl-silane diol; triphenyl sil anol; tetra methyl, tetra ethyl-and tetra phenyl-disiloxane diol; or an ester formed from a silanol or a siloxane and adipic or succinic acid.  The polyethers described are the usual ones (but include also polythioethers) together with the poly addition products of polyacetals and olefines of the type disclosed in Specification 866,323.  They may be used in conjunction with other polyfunctional compounds.  The polyisocyanates are the usual ones, and they may contain chlorine, nitro or alkoxy substituents.  The trimerized products of monomeric diisocyanates and the reaction product of a polyol with a diisocyanate can also be used.  The process may give a prepolymer, or not, as desired. A tertiary amine catalyst may be used.  Specifications 769,680 and 769,682 also are referred to.
Patent GB-1201501-A (GB)
Title: Apparatus for frictional driving of photographic and/or cinematographic films
IPC: G03D3/13
Filed: 1967-09-11
Abstract: 1,201,501. 501. Film processing apparatus; automatic tension control. OFFICINE MECCANICHE APPARECCHIATURE CINEFOTOGRAFICHE DI CAPRARA GAETANO E.C. Sept.11, 1967 [Sept.30, 1966], No.41360/67. Headings G2A and G3R. Transport means for conveying a film strip 40 through a succession of processing tanks comprise sets of pulleys such as 32 on fixed shafts 30, and further sets of rollers on movable shafts 20. In Fig. 4 the whole arrangement is shown as duplicated (shafts 30<SP>1</SP> and 20<SP>1</SP>, &c.) The shafts 20 are movable by virtue of being secured to a carriage 2 having an upwardly extending rod 23 passing through a hole in a fixed support 24. Carriage 2 and rod 23 (and hence shaft 20) have a restricted degree of vertical movement, limited by two adjustable stops 25, 26, a spring 27 being provided between stop 26 and support 24. The fixed shafts 30 are driven each by a corresponding motor 5, and one pulley 31 on each driving shaft is made of rubber as a frictional drive. The film 40 passes over the sets of pulleys as shown. The motors are arranged to have two speeds: a lower speed, for normal working, and an upper speed, for equalising the tension if it becomes unbalanced. The change from one speed to the other is effected by switching a resistance 50 into or out of the motor supply circuit. Between the driven sets of pulleys the film passes over a pulley 6 on one arm 61<SP>1</SP> of a spring-loaded lever 60 pivoted at 62. The other arm 61" carries a contact 60", which lies between two further contacts 52, 52<SP>1</SP>, and can close with either. If, during operation, the tension in the system becomes unequal, owing to the film slackening or contracting, the spring-loaded rod 23 and carriage 2, and hence the lower rollers on shaft 20, can adjust up or down automatically until the normal tension restores itself. This adjustment, however, is limited by the stops 25, 26. If the change in tension is such that this degree of adjustment is insufficient, the film passing over pulley 6 causes lever 60 to pivot, closing one or other of the electrical contacts. This causes the appropriate motor to act at its higher speed, and so restore the film tension. If the film breaks altogether, lever 60 closes contacts 7, 79 which actuate an alarm.