baber/WOPTO huggingface dataset:
Patent GB-1277147-A (GB)
Title: Abrasion-resistant conveying apparatus
IPC: B01D33/00
Filed: 1970-08-10
Abstract: 1277147 Endless conveyer belts ENVIROTECH CORP 30 Aug 1970 [21 Aug 1969] 38436/70 Heading B8A In a flexible conveyer belt 27 for a conveyer equipped with a belt-support plate 24, the belt comprises a top working surface, and an undersurface provided with a plurality of spacedapart abrasion-resistant bearing members 28 extending angularly therefrom for slidable contact with the support-plate. The belt may also be provided with a plurality of spaced-apart material-engaging projections 26 extending angularly from its top working surface. As shown, the projections 26 are detachably connected to the members 28. They may, however, be integrally connected (Figs. 4 and 5, not shown), and fit in the manner of grommets into respective apertures in the belt. The belt may have flanges (34) (Fig. 2, not shown) for retaining material. The members 28 may alternatively be screwed into recesses (32) (Fig. 6, not shown) formed in the belt where the latter is formed with transverse ribs.
Patent GB-351904-A (GB)
Title: An improved cold-asphalt
IPC: C08L95/00
Filed: 1929-12-16
Abstract: To the coarsely dispersed cold asphalt, forming the subject of the parent Specification and prepared by the use as dispersing agent of humic acid or materials containing humic or similar acids, is added a substance insoluble in water but adapted to dissolve in the precipitated asphalt or to react chemically with the water or with the mineral aggregate added to the dispersion. Suitable substances are (1) organic solvents such as tar, tar oils, tar oil fractions, e.g. solvent naphtha, heavy benzol, petroleum fractions, gas oil, solar oil, gum solutions, resin solutions; (2) substances adapted to set such as caustic lime, gypsum, hydraulic silicate.ALSO:To the coarsely dispersed cold asphalt, forming the subject of the parent Specification and prepared by the use as dispersing agent of humic acid or materials containing humic or similar acids, is added a substance insoluble in water but adapted to dissolve in the precipitated asphalt or to react chemically with the water or with mineral aggregate added to the dispersion. Suitable substances are: (1) organic solvents such as tar, tar oils, tar oil fractions, e.g. solvent naphtha, heavy benzol, petroleum fractions, gas oil, solar oil, gum solutions, resin solutions, (2) substances adapted to set such as caustic lime, gypsum, hydraulic silicates.
Patent GB-932790-A (GB)
Title: Improvements in lifting clamps
Inventor: HUTCHINSON AMBROSE
IPC: B66C1/48
Filed: 1958-12-01
Abstract: 932,790. Clamps for lifting sheets. LIFTING GEAR PRODUCTS (ENGINEERING) Ltd. Nov. 25, 1959 [Dec. 1, 1958], No. 38741/58. Class 78 (4). In a clamp for lifting sheets, of the type in which a cam 17 is turned about its pivot 19 to grip the sheets 27 by a connection 21 to a shackle pin 13 from which the clamp is suspended, the shackle pin 13 is guided by an arcuate slot 14 so arranged that an effective grip is maintained when lifting a sheet from the horizontal to the vertical position or vice versa. The body of the clamp illustrated is formed by a plate 10 on either side of which are carried the cams 16 and the links 21. The body may, however, be formed of two plates with the cams 16 mounted between them.
Patent GB-880917-A (GB)
Title: Improvements in and relating to electric lamp assemblies
IPC: B60Q3/04
Filed: 1959-11-17
Abstract: 880,917. Mounting indicator lamps. UNITEDCARR FASTENER CORPORATION. Nov. 17, 1959 [Nov. 19, 1958], No. 38995/59. Classes 75(3) and 75(4) An indicator lamp assembly for mounting on a support comprises a moulded insulating housing 12 having at one end a recess to receive a lamp bulb 14 and channels 22 extending from the recess to the outer surface of the housing to receive wires 26 leading to the bulb and integrally moulded means, e.g. arms 16, extending from the housing for insertion into a slot in a support for attaching the housing thereto. The arms 16 extend perpendicularly to one face of the housing, the outer ends being turned outwards at right angles. A slot having an enlarged upper part is provided in the support, the outturned ends of the arms being inserted therein and the assembly moved downwards so that it is retained by the narrow part of the slot.
Patent GB-1192976-A (GB)
Title: Digital Field Summing Recorder
IPC: G01V1/24
Filed: 1967-08-25
Abstract: 1,192,976. Seismic prospecting. MANDREL INDUSTRIES Inc. 25 Aug., 1967 [26 Aug., 1966], No. 39186/67. Heading H4D. [Also in Division G4] A recorder for recording in digital form the average of a plurality of signals and which may be utilized to record repetitive data having a poor signal-to-noise ratio as in seismic exploration systems includes adding means for summing the signals after conversion to a binary digital form, and means for shifting in significance the final sum by a number of binary digital places determined by the number of additions made. As shown (Fig. 3), analogue signals from a plurality of receivers displaced on the earth's surface are received on a plurality of channels 15, amplified and filtered at 22, sampled and multiplexed at 26, digitized by analogue to digital converter 32 and passed to a 14-bit register 36 of an arithmetic unit 34. Each digital sample word is added to the sum of the corresponding sample words of previous recordings in adder 38 and passed to a magnetic drum temporary store 44 from where after approximately one revolution it is read and passed by way of a core memory 52 to an 18- bit register 40 of the arithmetic unit for adding to the corresponding sample word of the next recording. After a number of recordings the summed sample words are shifted, whilst in logic means 50, a number of places depending on the number of additions such that the most significant possible position lies in a predetermined position. This has the effect of dividing the summed sample words by the number of recordings and thereby producing averages. The resultant words after temporary storage in memory unit 52 are then written on to a magnetic tape memory 18 under control of a formater and gap control 60. Signals for controlling the vibrating surface source 10<SP>1</SP> may be stored on a part 82 of the drum 44 these signals passing to the source 10<SP>1</SP> by way of memory unit 52, a digital to analogue converter 56 and a filter 58. Filters for use in the amplifier 22 may be selected by selector means 88, 90 to match the selected source vibrations. The source 10<SP>1</SP> may be controlled by a local sweep generator (Fig. 2, not shown) the output of which is fed to multiplexer 26 for recording on drum store 44 in interlaced positions with the summed sample words or may be initially read on to the drum store from the tape unit 18. A wide endless magnetic tape may replace the drum 44 (Fig. 4, not shown), the staggered side-by-side arrangement of data words on such tape being illustrated in Figs. 5 and 6 (not shown). The outputs of the amplifier 22 may be fed (e.g.) to a recording oscillograph 72 as may also the summed samples from register 40 by way of a range selector switch 64 and a digital to analogue converter 68. The source of vibrations may alternatively be a dropped weight (Fig. 4, not shown) or explosion. The recording and summing and the dumping of summed sample words on tape 18 may be performed simultaneously.
Patent GB-1197434-A (GB)
Title: Fire-Retardant Polyesters and Compositions
Inventor: JACQUES JAMES KEITH
IPC: C08K13/02
Filed: 1966-09-02
Abstract: 1,197,434. Flame-resistant polyester resins. ALBRIGHT & WILSON (MFG.) Ltd. 24 Aug., 1967 [2 Sept., 1966], No. 39383/66. Addition to 1,115,043. Headings C3P and C3R. A polyester resin (including unsaturated polyesters mixed with copolymerizable monomers) has incorporated therein a principal modifier of the Formula (I) wherein each X is a halogen atom, each Y is -O- or -NZ- and each Z is H or an organic group, p, q, m, n are integers such that p+q= 2 to 4 and p+m=q+n=5, and an auxiliary modifier which is Sb 2 O 3  and/or an ester of a phosphorus-containing acid. The incorporation may be by mixing at any stage before curing or, where the modifier carries a reactive group, by copolymerization with the polyester starting materials. Suitable phosphorus-containing esters include trialkyl, triaryl, trihydroxyalkyl, trihaloalkyl and alkyl/aryl phosphates, and phosphites and thiophosphites, and the hydroxyalkyl esters of the hydroxyalkyldiphosphonic acids of Specification 1,115,043. The polyester preferably contains 10-35 wt. per cent halogen and 0À1-1À5 wt. per cent phosphorus or (especially for opaque panels) 25-32 wt. per cent halogen and 2-20 wt. per cent antimony. In Examples 1-3 fumaric acid, phthalic anhydride and ethylene glycol are condensed with a 10 : 1 molar adduct of propylene oxide and hydroxyethylidene diphosphonic acid in the presence of a 3 : 1 adduct of propylene oxide and 4 : 4<SP>1</SP>-dihydroxy-octachloro-diphenyl, or the diphosphonic acid may be replaced by triethyl phosphate added after the condensation or with the styrene with which the polyester is then mixed. In Example 5, fumaric acid and ethylene glycol are condensed in the presence of the same chlorinated diphenol, and the product mixed with antimony oxide and styrene.
Patent GB-1175670-A (GB)
Title: Improvements in or relating to the Preparation of Block Copolymers
Inventor: WALKER JAMES STEWART
IPC: C08F297/08
Filed: 1966-09-03
Abstract: 1,175,670. Block copolymerization. DUNLOP CO. Ltd. 31 Aug., 1967 [3 Sept., 1966], No. 39470/66. Heading C3P. Block copolymers are obtained by contacting monomer(s) in sequence with a catalyst in a liquid phase saturated with an inert gas in a reaction vessel, wherein at the beginning of each sequence the desired concentration(s) of monomer(s) is obtained by the addition of a measured volume of a saturated solution of the monomers in the liquid phase, the concentration(s) being maintained by maintaining a constant pressure of monomer(s) by adding gaseous monomer(s) at the rate at which they are consumed by polymerization. The reaction vessel may be purged with an inert gas between each stage of the sequence or, if a random copolymer block is desired, a second monomer may be added without purging. Suitable catalysts comprise Al(C 2 H 5 ) 2 Cl/VOCl 3  and Li- Al(C 7 H 15 ) 4 /TiCl 4 . Suitable liquid phase media comprise pentane, cyclohexane and petroleum fractions. In Examples II and III copolymers of the formula A-(B-A) 4  are prepared in which each A is an ethylene homopolymer block and each B is an ethylene-propylene copolymer block, while A-(B-A) 2  copolymers are mentioned in Example I. A flow diagram of a suitable form of apparatus is provided.
Patent GB-338783-A (GB)
Title: Improvements in and relating to aircraft
IPC: B64C35/00
Filed: 1929-12-30
Abstract: 338,783. BlÚriot, L. Jan. 4, 1929, [Convention date]. Aeroplanes; cars; planes, connecting to machine; propelling; receptacles , detachable, for mails and freight.-An aircraft., particularly an aeroplane, has a detachable compartment adapted to be navigated on the water, the wing structure and its bracing being in two halves connected to members traversing the compartment, and the rear portion of the fuselage being constructed as a separate part, all simultaneously releasable from the compartment so that it is disengaged on all sides. The two main wings carrying two motors and landing gear with their bracings are connected to the ends of four members d, traversing the detachable compartment a, which form continuations of the wing spars and of the lower bracing elements. The longerons q of the rear part of the fuselage are detachably connected to the ends of the rear pair of members d. The members d may comprise steel tubes rotatably mounted in stuffing boxes m, Fig. 4, and screw threaded internally to engage screwed plugs n having eyes o for the attachment of the wing spars and bracing and, in the case of the rear pair of struts, shoulders p to take eyes on the fuselage longerons. The motor controls h pass through stuffing boxes i and have sliding squared connections to continuation rods j, Fig. 4. The fuselage longerons are divided and hinged to a frame, r, Fig. 5, having a. central vertical hinge s<1>. s<2>, the forward ends t of the longerons being braced to the respective halves of the frame r by members u so that they can readily spread apart when released. The four members d are simultaneously rotated to push out the plugs n by worm gear w, y on shafts x<1>, x<2>, Figs. 2 and 5, driven from an engine b which also drives a marine propeller.
Patent GB-920967-A (GB)
Title: Improvements of and relating to apparatus for advancing and cutting webs
IPC: B26D7/26
Filed: 1961-11-07
Abstract: 920,967. Cutting webs. O. NIEPMANN, and G. MONNINGHOFF, [trading as MASCHINENFABBIK FR. NIEPMANN & CO.]. Nov. 7, 1961 [March 8, 1961], No. 39787/61. Class 31 (1). An apparatus for advancing and cutting webs 4 of material such as cellulose comprises a blade 5 which is embedded adjacent a radially displaceable pressure member 10 of synthetic resin material within a cutter roller 1, both the blade and member 10 being arranged to coact with a counter roller 3 having a continuous operative steel surface. The blade, which extends over a part of the length of the roller and has a cutting edge which forms an acute angle with the axis of the roller, is adjustable by a screw 9 and clamped by a screw 7 while the member 10 is urged outwardly on guide screws 13 by compression springs 11, as shown in Fig. 3, so that it projects beyond the circumference of the roller 1 until in operation it is depressed by the counter roller. In operation, during rotation of the cutter roller and its resiliently mounted counter roller, the projecting member 10 makes contact with and holds the web 4 firmly against the counter roller until further rotation carries the web into the cutting position of the blade to sever a length 4a by a shearing or squeezing action.
Patent GB-978234-A (GB)
Title: Process for the conversion of aqueous emulsions of natural and synthetic rubbers
IPC: C09J121/02
Filed: 1964-11-07
Abstract: Aqueous emulsions of natural or synthetic rubbers are converted into solid products by adding hydrated fillers in amounts lower than those necessary to combine with the water in the emulsion in stoichiometric proportions. Specified fillers are calcium sulphate, cement and calcium oxide.  The amount of filler used varies with the type of plasticizer, emulsifier and other fillers which may also be present as well as with their particle size. The emulsion may contain subtances which form films with the hydrating fillers.  The hydrated filler may be incorporated in the emulsion by stirring while mixed with a water-soluble binding agent e.g. shellac. Specified rubbers are natural rubber butyl rubber, polychlorobutadiene, polyisobutylene and butadiene-styrene and butadiene acrylonitrile rubbers.
Patent GB-992659-A (GB)
Title: Trifluoromethyl vinyl ether
IPC: C08L51/04
Filed: 1962-10-22
Abstract: The invention comprises trifluoromethyl vinyl ether and its preparation by the dehydro halogenation of 2-chloroethyl or 2-bromoethyl trifluoromethyl ether.  The dehydrohalogena tion may be carried out with an alkali metal hydroxide, preferably in an inert solvent medium and preferably at 50-80 DEG  C.  2 - Chloroethyl and 2 - bromoethyl trifluoromethyl ether are prepared from 2-chloroethanol and 2-bromoethanol by reaction with carbonyl fluoride, followed by fluorination with sulphur tetrafluoride.ALSO:Polymers are prepared from trifluoromethyl vinyl ether with or without a copolymerizable ethylenically unsaturated comonomer. Polymerization may be carried out by bulk, solution or emulsion methods in the presence of free radical liberating initiators in inert containers. In bulk polymerization, dinitrogen difluoride may be used as an initiator at, for example, 70-75 DEG C. at 100-3000 atmospheres.  Solution polymerization may be carried out in inert solvents with a dinitrogen difluoride or peroxide initiator at for example, 80 DEG C., under autogenous pressure. Solvents which may be used include benzene, hexafluoropropylene dimer and octafluoro-1,4-dithiene.  Emulsion polymerization may be carried out with ammonium persulphate as initiator at about 60-85 DEG  C. Examples of comonomers are ethylene, vinylidene fluoride, vinyl fluoride, vinyl chloride, tetrafluoroethylene, hexafluoropropylene, propylene, 1,3-butadiene, chloroprene, fluoroprene, chlorotrifluoroethylene, and vinylidene chloride. Polymers of the invention may be cured by irradiation with electrons or by treatment with a peroxide, e.g. cumene peroxide or tertiary butyl peroxide or with an amine salt, e.g. hexamethylene diamine carbamate to 100-200 DEG C.ALSO:Filter paper in rendered waterproof by impregnation with a homopolymer or copolymer of trifluoromethyl vinyl ether.  A homopolymer may be applied from solution in acetone and a copolymer, (e.g. with ethylene or tetrafluoroethylene), may be used in the molten state.
Patent GB-1530988-A (GB)
Title: Retainer for resiliently loading a bearing
IPC: F16C19/36
Filed: 1977-09-26
Abstract: 1530988 Bearings; mounting bearing races CATERPILLAR TRACTOR CO 26 Sept 1977 [11 Feb 1977] 39938/77 Headings F2A and F2U Means for resiliently preloading a bearing on a shaft 17 comprise a retainer 50 having a central passage 54 through which the shaft extends. The passage wall and the surface of the shaft adjacent the bearing each have a plurality of axially spaced circumferential grooves defining lands therebetween; the sides of the grooves of at least one set are parallel and oblique to the surface so that when the retainer is urged radially inwardly against the shaft as by tightening of bolts 60, 61, the lands of one set positioned in corresponding grooves of the other set are elastically deflected axially to provide the desired preloading.
Patent GB-1315835-A (GB)
Title: Duct terminator
IPC: E02F5/10
Filed: 1970-08-20
Abstract: 1315835 Termination of ducts in concrete wall FORMEX MFG Inc 20 Aug 1970 [28 Aug 1969] 40111/70 Heading E1W [Also in Divisions F2 and H2] Ducts are terminated at a concrete switch room wall 41 formed by casting concrete 45 between shuttering 21 around at least one preformed moulded member 19 with spaced planar parts 27, 29 interconnected by receptacles 31 forming passages 33 for the receipt of the end of a duct 35. The members 19 may be stacked resiliently engaging each adjacent member by means of corresponding beads 37, 39. The inside part of the member may be provided with a bell-shaped flare 51 to prevent damage to electrical conduits passing over the edge. A frangible web (85) Fig. 9 (not shown) may extend across the opening formed by the member 19 at the duct engaging lip 49.
Patent GB-1432211-A (GB)
Title: Manufacturing reinforced concrete elements
IPC: B28B15/00
Filed: 1973-08-24
Abstract: 1432211 Railway systems SOC ANON DE RECHERCHE ET D'ETUDES TECHNIQUES 24 Aug 1973 [1 Sept 1972] 40188/73 Heading B7L [Also in Divisions B4-B5 F2 and E1-E2] A carriage 157 is mounted on wheels 136, 137 free-running on rails R. The wheel axles 151 are eccentric, and are mounted at their ends 152, 153 for rotation by a toothed disc 154, to vary the height of the carriage 157 above the rails R. A blocking member 158 fixes the disc position. The carriage supports a mould for prestressed concrete members (see Divisions B4-B5).
Patent GB-1085789-A (GB)
Title: Improvements in or relating to drive means
IPC: F16H37/12
Filed: 1964-10-05
Abstract: 1,085,789. Electric correspondence control systems. BAILEY METER CO. Oct. 5, 1964 [Oct. 3, 1963], No. 40424/64. Heading G1N. [Also in Division F2]  The angular position of a damper 7 is regulated by a motor 16 which is controlled by movement of an arm 30 of a potentiometer 28 which feeds a signal to a differential amplifier 31 in which it is compared with a feedback signal from a movable core transformer 25 operated by a cam 22 connected by linkwork to the damper 7.
Patent GB-1394996-A (GB)
Title: Liquid fuel injection pumping apparatus
IPC: F02M41/14
Filed: 1971-09-02
Abstract: 1394996 Fuel injection pumps CAV Ltd 24 Aug 1972 [2 Sept 1971] 40877/71 Heading F1A Air is purged from a rotary distributer fuel injection pump, e.g. after its assembly, through a vent conduit 22 in permanent communication with the pump delivery passage 13 and arranged to register, when the pump is delivering, with a valved vent passage 20 in the pump body. The valve is in the form of a removable plug 21 having an extension substantially filling the vent passage 20. The vent conduit 22 is connected to the delivery passage 13 just up stream of a spring-loaded delivery valve 17. If the delivery valve is replaced by a valve in each outlet passage 15 then the vent conduit 22 is connected close to the end of the delivery passage which communicated with the outlets.
Patent GB-1426495-A (GB)
Title: Electrostatic filters
IPC: B03C3/155
Filed: 1973-08-31
Abstract: 1426495 Electrostatic separators C G VON BERCKHEIM 31 Aug 1973 [11 Dec 1972] 41059/73 Heading B2J. An electrostatic filter comprises a housing 7 defining an air passage 8; a pre-ionising device 10; and a plurality of disposable collecting electrodes 1 each formed with a plurality of three-dimensional depressions and projections 4, 5 of a height which exceeds the thickness of the electrode and is at least 20% of the mean distance between adjacent electrodes the electrodes being made of dried moulded pulp which coated or impregnated with an electrically conductive material such as graphite. The surface of each electrode may be roughened by the provision of further small depressions and projections having a height of at least 0.1 mm. The collecting electrodes may be arranged transverse to the air flow, in which case adjacent electrodes are provided with holes, in the projections in one and in the depressions in the other, resulting in a tortuous flow path which aids precipitation of impurities from the air. (Fig. 4, not shown).
Patent GB-1284664-A (GB)
Title: Improvements in linear motion variable resistance controls
Inventor: GOERG CHARLES RICHARD
IPC: H01C10/44
Filed: 1970-08-26
Abstract: 1284664 Variable resistors GLOBE-UNION Inc 26 Aug 1970 [13 Nov 1969] 41107/70 Heading HIS A linear variable resistor has enclosed in a metal or plastics housing 22 a dielectric base 14 carrying parallel resistive and collector elements 36, 38, and a wiping bridging contact (20, Fig. 3, not shown) fixed to a saddle shaped plastics carrier 18 which slides along the base on shoulders (78) on side members 64, 66. These side members pass out through the gaps between the sides of the base 14 and the side walls of the housing 22 to be fixed to a saddle shaped exterior slider 16 by lugs 54, 56. Studs 62 minimize the friction and area of contact between the slider and the housing, as do ribs 58 between the slider and the outside walls of the housing. The resistance element 36 may be a carbonaceous film or strip.
Patent GB-1123710-A (GB)
Title: Improvements relating to character display devices
Inventor: WINROW DONALD
IPC: G09F9/37
Filed: 1967-09-09
Abstract: 1,123,710. Monogrammic signs. FERRANTI, Ltd. 9 Sept., 1967, No. 41274/67. Addition to 934,001. Heading G5C. The character-forming elements 14 of the parent Specification are mounted between resilient U-shaped members 22 whose limbs 20 diverge when unconstrained and which are inserted between projections 12 on a common base 10 so as to constrain limbs 20 of a pair towards each other. As described, a detent 28 limits rotation of element 14 to less than 180 degrees. A permanent magnet 18 produces a field A-A which can interact with a reversible field between electromagnet poles 36. The electromagnet is similar to that described in Specification 1,027,955 and is mounted in recesses 32, 34 in the base. Reference has been directed by the Comptroller to Specifications 1,027,955 and 1,014,380.