baber/WOPTO huggingface dataset:
Patent GB-1163945-A (GB)
Title: Control Device for Controlling a Variable
IPC: G05D7/06
Filed: 1966-10-03
Abstract: 1,163,945. Automatic flow control systems. SUNVIC-REGLER G. m. b. H. Oct. 3, 1966 [Oct. 12, 1965], No.44080/66. Heading G3R. In an automatic control system for a variable e.g. fluid-flow, of the type wherein actual and setpoint values of the variable are represented by pulse trains whose respective frequencies correspond to these values, the trains are supplied to a comparison circuit 11 producing an output at 14 or 15 depending on the magnitude and polarity of the difference, which output is amplified in member 16 and used to control a D. C. stepping motor 17 whose movement determines the position of a valve 29 and hence the output pressure of a compressed air system used to control the variable. The circuit 11 may be generally similar to that described in Specification 1,104, 309 and comprises pulse gates controlled by storage elements so that an input pulse can only pass to an output 14, 15 when a pulse is already stored in the storage element associated with the corresponding input. The motor 17 controls the valve 29 through gearwheels 18, 19, spindle 20, nut 21, pivoted lever 22, spindle 24, diaphragm loading spring 26 and regulating diaphragm 27. The relationship between the change in output of circuit 11 and the change in the compressed air signal may be varied by altering the ratio of gears 18, 19 or the pivot point of the lever 22. Alternatively the motor may directly control the valve or control an electrical analog output such as a potentiometer. Whilst the control system described compensates for time integration of the error in a steady state condition, a change of set-point will produce an error which is not so compensated. Accordingly an arrangement is described to compensate for this error, Fig. 2 (not shown), in which the output air signal from the control system is passed to a further controller whose output controls the variable and which has a set point equal to the output of the control system before a change is made to the set-point of the latter.
Patent GB-1235867-A (GB)
Title: Improvements in and relating to waste disposal systems
Inventor: GREEN HARRY WILLIAM
IPC: B60R15/04
Filed: 1968-09-18
Abstract: 1,235,867. Sanitary conveniences in vehicles. STANDARD PRODUCTS CO. 18 Sept., 1968 [19 Sept., 1967], No. 44397/68. Heading B7B. In a vehicle waste disposal system described in Specification 1,139,277 a temperature responsive switch in thermal contact with the exhaust pipe adjacent the vapourizer is effective to open circuit the electrical supply to the pump which feeds the vapourizer, when the exhaust pipe temperature is below a predetermined level. This prevents flooding the vapourizer and consequent discharge of unpurified liquid.
Patent GB-1224769-A (GB)
Title: Improvements in conveyors
IPC: B65G23/00
Filed: 1968-09-18
Abstract: 1,224,769. Cooling conveyer-driving mechanisms. LAURENCE SCOTT & ELECTROMOTORS Ltd., and P. R. MOSSAY. 17 Sept., 1969 [18 Sept., 1968], No. 44446/68. Heading B8A. In a conveyer 1 comprising an elongated baseplate 5, means 7 for transporting material along the base-plate, and drive means including an electric motor 13 for driving moving parts of the conveyer, a cooling fluid is provided within a housing of the motor, a rotor element 19 of the motor being adapted, upon rotation, to urge the fluid along a predetermined path within the housing so that heat generated by the motor is transferred to the fluid, and the conveyer is further provided with heat-exchanger means 31, including the base-plate, to which heat from the fluid is transferred. As shown, the cooling fluid is a liquid, and the rotor element 19 is formed with a generally helical groove 25 so that there is provided, upon its rotation, a flow of liquid between axially opposed ends of the housing. The cooling fluid may alternatively be a gas and there is then associated with the rotor element, an integral compressor which serves to provide a flow of gas between axially opposed ends of the housing. In a further modification (Fig. 3, not shown), the housing of the motor is connected to an external heat exchanger contained in a jacket (75) adjacent the motor. Oil dissipates heat from the motor to water in the jacket (75). The water is circulated by-a pump (77) to a heat exchanger (53) beneath the conveyer.
Patent GB-977614-A (GB)
Title: Apparatus for the winning of coal or other minerals by a cutting or stripping action
IPC: E21C35/04
Filed: 1960-12-29
Abstract: 977,614. Taking up slack of electric cables and hoses in coal-winning machines. E. WENDT. Dec. 29, 1960 [Dec. 31, 1959], No. 44658/60. Heading B8B. Electric power cable 32 and a water hose 33 supplying a coal winning machine 29 movable on a conveyer 26, pass around respective pulleys 57, 58 to a point 40 where they are fixed on the conveyer framework. Uniform tension is maintained in the cable and hose by the action of a winch 37 acting through a cable 35 connected to a carriage 56 for the pulleys 57, 58. From the anchorage 40 the cable and hose pass in a channel 41 of the conveyer framework. The carriage 56 runs by means of wheels 55, 55, on the conveyer framework and has a bearing member 60 engaging a correspondingly shaped member 61 on the conveyer framework. The cable 32, hose 33 and cable 35 may be suitably reinforced so as to provide a safety means for supporting the machine 29 when it is working on an inclined face, in the event of emergency.
Patent GB-1079369-A (GB)
Title: Foamed polymers
IPC: B29C55/00
Filed: 1965-10-22
Abstract: A partially cross - linked stretch - oriented mono-olefine polymer foam, optionally having at least one non-porous impervious skin of the same polymer integrally united to the foam, is prepared by adding a foamable composition comprising the cross-linked polymer and foaming agent to an extruder, heating the composition therein, extruding the mixture as a sheet or tube under pressure, quench-chilling one or both surfaces of the foaming extrudate with a stream of compressed gas to give non-porous skins, if desired, prior to uni- or bi-axially stretch-orienting the foamed extrudate.  The preliminary cross-linking of the polymer is achieved by radiation, free-radicals derived from known agents or co-polymerization with a di-olefinic hydrocarbon such as di-cyclopentadiene. The preferred polymers are homopolymers of ethylene or propylene although co-polymers of ethylene with a -mono-olefines may be used.  Typical foaming agents are organic compounds which decompose to give nitrogen, e.g. p,p1-oxy-bis(benzene-sulphonylhydrazide) or di-nitrosopentamethylene tetramine; mixtures of ammonium, alkali or alkaline earth metal carbonates or bicarbonates and an acidic agent which liberate carbon dioxide, e.g. sodium bicarbonate and citric acid and, finally, volatile liquid hydrocarbons or substitution derivatives thereof absorbed on a solid absorbent, e.g. pentane on silica gel.  Other conventional additives may be included in the composition.  A suitable extrusion apparatus is described.
Patent GB-1490366-A (GB)
Title: Filler compositions asphalt cement and concrete compositions
IPC: C04B28/02
Filed: 1974-10-16
Abstract: 1490366 Asphalt compositions CABOT CORP 16 Oct 1974 [16 Oct 1973 8 Aug 1974] 44753/74 Heading C3N [Also in Division C5] An asphalt composition comprises asphalt having dispersed therein a reinforcing filler composition consisting of a pelleted (a) mixture of carbon black having a BET-N 2  surface area of at least 40m.<SP>2</SP>/g. and a dibutyl phthalate absorption value of at least 60 cc./100 g. and an asphalt-miscible petroleum oil that is essentially non-volatile at temperatures below 325‹ F., the weight ratio of said carbon black to said oil being 100 : 5-60 : 40 and the amount of said reinforcing filler composition dispersed in said asphalt cement being sufficient to provide 10-70 parts by weight of said carbon black per 100 parts by weight of said asphalt. The asphalt composition may comprise asphalt cement or asphalt cement and mineral aggregate. The petroleum oil may have an asphaltene content of less than 5% by weight and is preferably a low viscosity asphalt of low asphaltene content or oil separated from high viscosity asphalts as the "maltene" or pentane soluble fractions thereof. The oil preferably contains less than 30% by weight saturated hydrocarbons. The mineral aggregate preferably comprises mixtures of rock and sand having the usual size characteristics.
Patent GB-1101692-A (GB)
Title: A tripod mounting for a drilling device
IPC: E21B15/04
Filed: 1965-10-25
Abstract: 1,101,692. Rotary rock drills. JOY MANUFACTURING CO. 25 Oct., 1965 [13 Jan., 1965], No. 45011/65. Heading B3C. [Also in Division B4] A tripod mounting for a rotary-percussive rock drill comprises a drilling tool 54 carried by a guide frame 10 which is movable along a trunnion member universally pivoted on a mobile frame 14, a pair of extensible leg members 49 being connected between the trunnion member and the frame. The trunnion member is in the form of a square tube 36 provided with mounting plates (39, Fig. 4) for supporting the guide frame and having a universal joint (30, 43, Fig. 4) permitting lateral and forward-andbackward movement relative to the frame 14, via the extensible members 49; the frame is mounted on a crawler 18. The drilling tool 54 is moved along the guide frame via a motor 63
Patent GB-1392120-A (GB)
Title: Clamping force applying means for moulding machines
IPC: B29C45/67
Filed: 1973-09-26
Abstract: 1392120 Mould closing devices IMPROVED MACHINERY Inc 26 Sept 1973 [29 Nov 1972] 45104/73 Heading B5A A mould 32, 34 is clamped together by at least one clamping force transmitting means 38, the or each transmitting means being associated with a plurality of pistons 62 for conjointly applying the clamping force to the mould. As shown, the force transmitting means comprises tie rods 38 which are adjustably connected to a movable platen 24 carrying an injection mould part 32, and in the mould-closed position extend through openings in a fixed platen 10 carrying mould part 34. The tie rods 38 are gripped by individual breech mechanisms 40, each comprising breech blocks 44, 46 movable towards and away from the tie rods. The pistons 62 are located in individual cylinders 60 to which fluid under pressure can be admitted through conduits 74, 76. A by-pass passage 80 in each cylinder wall limits the travel of the pistons 62 and prevents overstressing.
Patent GB-1273139-A (GB)
Title: Plate heat exchangers or filters
Inventor: AXON TERENCE FREDERICK
IPC: F28F3/10
Filed: 1968-09-24
Abstract: 1,273,139. Plate heat exchangers. SERCK RADIATORS Ltd. 4 Sept., 1969 [24 Sept., 1968], No. 45238/68. Addition to 1,035,170. Heading F4S. The sealing member 11 described in the parent Specification is modified by the addition of a portion 10 integral with and less resilient than the sealing portion of the member 11. The portion 10 serves as the spacing means between adjacent plates and has grooves 15 therein through which any fluid leaking past the seal from the plate interspace may escape. The spacer portion 10 of the member 11 may be made of hard rubber, and may be reinforced by metal inserts (116, Fig. 2). The arrangement enables the plate edges to be simplified (as shown) as compared with the construction in parent Specification. The sealing groove 13 in the sealing portion 11 may be modified by providing an additional lip (Fig. 4) similar and opposite to the lip 12.
Patent GB-1435106-A (GB)
Title: Tyre and wheel rim assemblies
IPC: B60B/
Filed: 1972-10-05
Abstract: 1435106 Tyre and wheel rim assemblies DUNLOP Ltd 4 Oct 1973 [5 Oct 1972] 45856/72 Heading B7C Lubricant contained within an inflated envelope, e.g. an annular tube 15, is released into the tyre cavity 19 upon the envelope rupturing in response to a fall in the pressure of the air within the cavity. In the illustrated embodiment the tube is thinnest in its crown portion 16. Lubricant is introduced via valve 17 or via a separate plugged hole, and the tube after positioning in well 14 is inflated via valve 17 to a pressure slightly below the desired pressure of air in cavity 19. Air is introduced into the cavity via a separate valve (not shown) until the desired pressure is reached and the tube is theninflated to a pressure slightly in excess of the desired pressure. Upon the tyre puncturing the tube will expand until it ruptures in the crown portion. In an alternative embodiment (Fig. 2, not shown), air is introduced into the cavity and the tube via the same valve stem (18), the valve stem opening directly into the cavity and a one-way valve being provided between the stem and the tube.
Patent GB-1248840-A (GB)
Title: Wet fixation of resins in fiber systems for durable press products
IPC: D06M13/184
Filed: 1969-09-17
Abstract: 1,248,840. Crease-proofing textiles. COTTON PRODUCERS INSTITUTE. 17 Sept., 1969 [3 Oct., 1968], No. 45861/69. Heading D1P. Cellulosic fibre-containing textile material is made suitable for the fabrication of durablepress apparel therefrom by applying an aqueous liquid adjusted to a pH of 1-4 and containing a water-soluble, hardenable polymer precursor possessing reactive N-methylol groups in amount sufficient to deposit at least 3% of the precursor based on the dry weight of the material, passing the material while maintaining its moisture regain at not less than 20% through a wet fixation zone at a temperature of at least 100C. at a rate corresponding to a dwell time in the zone of from 10 seconds to less than 2 minutes and until the precursor is fixed on the material under avoidance of effective crease-proofing, and cooling under polymerising conditions. The process may further include the steps of adjusting the pH of the wet-fixed material to a least 6 and washing the material, applying a cellulose cross-linking agent other than the polymer precursor either simultaneously with the latter or after wet-fixation of the latter, applying an acid acting curing catalyst, and dry-curing at 120-180C. Materials which may be treated include natural and regenerated cellulose and blends, e.g. which contain at least 15% cotton mixed with polyester, nylon or wool fibres.
Patent GB-1309576-A (GB)
Title: Random access data stores
IPC: G11C11/06
Filed: 1970-09-29
Abstract: 1309576 Store selector circuit monitor SIEMENS AG 29 Sept 1970 [30 Sept 1969] 46138/70 Heading G4C [Also in Division H3] A random access data store has individual store selector circuits with a power rating less than that required for continuous call of any storage cell and has a monitoring circuit arranged to prevent overheating of a selector circuit due to use in excess of a predetermined value. Each true and inverse bit of an address is fed to a respective AND gate G1 of the monitoring circuit enabled by a timing signal. An output of the gate feeds transistor TR2 via a Zener diode while an inverted output of the gate feeds transistor TR1. TR2 is rendered conductive by the address and in conjunction with resistors R2, R1<SP>1</SP>, the capacitor C has a rate of current increase corresponding to the rate of temperature increase of the selector circuit. When TR2 is rendered non-conductive the current decays at a rate corresponding to the cooling of the selector circuit. A tap on resistor R2 is coupled to NOR gate G3 which is operative if the current, hence temperature, exceeds a predetermined value. Several NOR gates can feed a NAND gate feeding an AND gate so that a resetting pulse cannot pass the AND gate if a selector circuit is overheated (Fig. 3, not shown). The thermal conditions may be simulated by thermistors. To allow selectors to have a substantially lower power rating and to allow use of integrated circuits the simulators may feed logic gates arranged to produce outputs if one address is continually used, if two addresses are alternated, if four addresses are alternated, &c. respectively. The gates feed monitoring signal generator stages which can be similar to the circuits of Fig. 2 but are arranged such that the greater the number of addresses called in a given sequence the greater is the response time and the smaller the resetting time. For instance for a minimum response time ta each generator stage may have a response time i-ta if i addresses are called and a resetting time inversely proportional to i. A word organized magnetic wire store may be used.
Patent GB-1031030-A (GB)
Title: Magnetic translator circuit
IPC: G06F9/32
Filed: 1964-11-13
Abstract: 1,031,030. Circuits employing bi-stable magnetic elements. STANDARD TELEPHONES & CABLES Ltd. Nov. 13, 1964 [Nov. 14, 1963; Nov. 30, 1963], No. 46297/64. Heading H3B. [Also in Division G4] Input leads a, a . . . h, h are threaded through magnetic switching elements Kel ... Ken so that when a suitable input code is applied, only one switching element, e.g. Ke3 is selected and the signal induced in an electric loop threading the element is passed via a diode to the corresponding output element Ka3 so that pulses appear on the output leads i, #i ... m, m threading that element. A transistor Tr may be included in the circuit so that signals are only passed from the input elements to the output elements when it is conductive, its actuation by a pulse T2 being delayed so that short pulses from non-selected elements do not affect the output elements. The output from leads i, #i ... m, #m mzy be fed via amplifiers Vr back to the leads e, #e ... h, #h to form part of the new input.
Patent GB-1161364-A (GB)
Title: Temperature Detection Device
IPC: G01K13/02
Filed: 1966-10-17
Abstract: 1,161,364. Shaft seals. DRESSER INDUSTRIES Inc. 17 Oct., 1966 [21 Oct., 1965], No. 46402/66. Heading F2B. [Also in Divisions F1 and G1] Leakage between the shaft 54 and a bearing member 98 of a centrifugal pump is limited by supplying a fluid under pressure to a pipe (122, Fig. 1, not shown) communicating with an annular recess 116 in the end bearing member 98. This recess passes the fluid via apertures 168 in a spacer ring 152 to the interface between sealing rings 146, 148, &c., and a bearing sleeve 130 on the shaft 54. The pressure is adjusted to cause the sealing fluid to just flow into a cavity 94 thereby increasing the resistance to the leakage flow from this cavity.
Patent GB-1058139-A (GB)
Title: Method of re-arranging rod-like articles
Inventor: MEINECKE GERHARD
IPC: A24C5/47
Filed: 1963-11-28
Abstract: 1,058,139. Cigarette filter tips. K. KÍRBER. Nov. 28, 1963, No. 47020/63. Heading A2C. [Also in Division B8] Cutting wheels 4 and 5 cut a filter rod into three rod portions F side by side and the rod portions are reorientated whilst being carried by a rotating wheel 3 so that they assume a position in line ahead. First embodiment, Fig. 2. The wheel 3 carries pairs of forks 24 and 25, and the forks 24, 25 are carried by levers 28 pivoted at 29 and controlled at 30 by cam 31 so as to displace a rod portion F along the periphery of wheel 3. Stationary guides 35 then displace each rod portion into an appropriate groove 20. Thus a filter rod is first fed on to wheel 3 so as to be positioned along a groove 20 and between the prongs of forks 24 and 25. A rod falls into every third groove 20. The rod in this position is then cut into three portions F by the cutters 4 and 5 as it is carried by the wheel 3. Each end rod portion is then displaced by its fork in the direction of movement of the wheel, fork 25 moving backwards whilst fork 24 moves forward till each rod portion arrives at a position opposite to an empty groove 20. At this moment guides 35 then press the rod portion into the groove 20 which awaits it so that the rod portions now fill all the grooves 20 of wheel 3. The rod portions are now in the line ahead position. Second embodiment, Fig. 4. Each filter rod S is transferred from a drum 2 and falls into a commencing position on rotating wheel 3. This position lies in a groove 20 and across receiving elements 36 and 41 lying adjacent the front portions 37 of said elements. A rod fills every third groove 20. Each rod S is now cut into three portions by cutters 4 and 5, rods being held in apertures 48 of independently driven discs 45 and 46 whilst the cutting takes place. The three rod portions now lie respectively on receiving element 36, groove 20 and receiving element 41. The rods which lie on the receiving elements are now displaced relatively to the rod which lies in a groove 20, the rod positioned at 37 being displaced backwards to position 38 whilst the rod lying on element 41 is displaced backwards a larger distance to position 39, the displacement respectively being effected by rollers 55 and 57. Each displaced rod portion is now opposite an empty groove 20 and is displaced thereinto by the stationary guides 35 as the wheel 3 rotates. The rod portions have now taken up the required in line position. Alternatively the displacement in the line of movement of wheel 3 may be effected by stationary faces, the rods on the receiving elements being positioned thereon by a moving part of said element and the parts being moved perpendicular to the faces of the receiving element in order to permit the displacement of the rod portion in the direction of movement of the wheel 3.
Patent GB-1063938-A (GB)
Title: Process for the preparation of vinyl acetate
IPC: C07C69/01
Filed: 1965-11-05
Abstract: Vinyl acetate is made by reacting ethylene, acetaldehyde and oxygen in the presence of a finely divided catalyst consisting of a Group VIII noble metal on a solid support, the reaction being effected in an inert organic solvent medium at 60-200 DEG  C. Specified catalysts are Ru, Rh, Rd, Os, Ir and Pt.  Hydrocarbons are the preferred solvents.  It is preferred to include in the reaction mixture a conventional oxidation catalyst for acetaldehyde, e.g. a carboxylate of Mn, Co or Cu.  Examples relate to the use of a Pd/carbon catalyst.
Patent GB-1529457-A (GB)
Title: Preformed anterior labial retainer
IPC: A61C7/00
Filed: 1975-11-14
Abstract: 1529457 Orthodontic devices E O BERGERSEN 14 Nov 1975 [18 Dec 1974] 47135/75 Heading A5R An orthodontic device of the 'Hawley Retainer' type comprises a palate portion including a rearward portion 23, lateral sides 24 and thickened forward portion (16), and a labial wire 25 secured in portion (16) at 28, the material of the palate portion being rigid at body temperatures but softening at temperatures from 110F to 190F to allow a preformed device of the approximate size of the patient to be heated to these temperatures and then hand manipulated in his mouth to his exact contours. Suitable materials include polyurethane, polypropylene, and polyethylene resins and acrylic resins e.g. methyl methacrylate copolymers with butyl acrylate, vinyl chloride or ethyl acrylate. Interproximal protrusions may be formed with cold-cure acrylate. The wire 25 is either secured during injection moulding or the ends are soldered together.
Patent GB-1249330-A (GB)
Title: Bucket for a hydraulic excavator
IPC: E02F3/40
Filed: 1968-10-04
Abstract: 1,249,330. Shovel excavators. ORENSTEINKOPPEL UND LUBECKER MASCHINENBAU A.G. 4 Oct., 1968 [26 Oct., 1967], No. 47138/68. Heading E1F.  An excavator bucket comprising a back plate 15 and a bucket body 16 pivoted to the back plate about a transverse axis 17 disposed adjacent the top edge of the back plate is provided with a first pivotal mounting point 7 for attachment to the vertically swingable bucket arm 6 of an excavator and, below the point 7, with a second pivotal mounting point 14 for connection to one end of a link 13 of a system 13, 11, 9, 8 for tilting the bucket relative to the arm 6 when it is mounted thereon. Each lateral edge of the back plate 15 is formed with a rearwardly opening housing in which is housed a piston cylinder actuator coupled between the back plate and the bucket body for causing relative movement thereof. The rear of each housing can be closed off by a cover plate.