baber/WOPTO huggingface dataset:
Patent GB-1360986-A (GB)
Title: Fork lift truck attachment
IPC: B66F9/18
Filed: 1971-12-10
Abstract: 1360986 Rotating gripper attachments for lift trucks STOCKPORT MFG CO (1950) Ltd 10 Dec 1971 [16 Sept 1970] 44122/70 Heading B8H A roll clamp, Fig. 4, is mounted on frame 13, Fig. 1, which supports two pairs of opposed hydraulic cylinders 13c interconnected by racks 13d and which is rotatably mounted on a back plate supported on the lift truck. The racks 13d engage a gear-wheel 16 which is secured to the back plate whereby actuation of the cylinders 13c causes rotation of the frame 13 and clamp. The clamp consists of upper and lower arms 21, 22 pivotally mounted in a frame 23 formed integrally with the frame 13 and actuated by double-acting hydraulic rams 24, 26. Hydraulic fluid is fed to the rams 24, 26 and cylinders 13c through a rotary connection extending through a bore in the gear-wheel 16.
Patent GB-1194218-A (GB)
Title: Process for producing Crystalline Urea and apparatus for use therein
IPC: C07C239/00
Filed: 1967-09-29
Abstract: 1,194,218. Crystallization of urea. WELLMAN LORD Inc. 29 Sept., 1967 [29 Sept., 1966], No. 44451/67. Heading C2C. [Also in Division B1] A process for producing crystalline urea from an aqueous urea solution, wherein the crystalline urea product has a biuret content substantially the same as the biuret content of the urea in the solution, comprises introducing a aqueous urea solution containing from 70 to 92% by weight of urea into a crystallization zone in which the solution is provided with a surface exposed to an inert, moisture-absorbing gas, heating the solution to maintain it at a temperature from 170-270‹ F. to provide urea crystals on the surface of the solution, contacting the urea crystals with a urea crystaladhering surface at a temperature above 175‹ F. and below the melting point of the crystals to remove the crystals from the solution, and recovering crystalline urea having a biuret content substantially the same as the biuret content of the urea in the solution. The crystalline urea produced suitably has a biuret content of less than 0À1% by wt. and the crystal adhering surface employed may be a belt conveyer or a pan skimmer, but is preferably a rotatably mounted drum which has an irregular surface. During the crystallization, a non-saturated, inert gas stream may be blown across the surface of the said urea solution and the crystallization zone may be enclosed. Diluted urea solution may be withdrawn from said crystallization zone, heated at 140-180‹ F. to reconcentrate it, and re-introduced into said crystallization zone. The invention also includes urea crystals having a density between 15 and 25 lb. cu. ft.<SP>-1</SP> which are spheroidal-like in shape and have a lengthwise dimension from 20 to 400 microns, or which are tetragonal in shape and have lengthwise dimension of 20-400 microns, a widthwise dimension of 15-350 microns, a width to length ratio of 0À3 to 1 to 1 to 1 and having less than 1% by wt. moisture content.
Patent GB-1219538-A (GB)
Title: Frequency synthesizer
IPC: H03L7/181
Filed: 1969-09-09
Abstract: 1,219,538. Automatic phase control. DANA LABORATORIES Inc. 9 Sept., 1969 [17 Jan., 1969], No. 44537/69. Heading H3A. In a frequency synthesizing arrangement a voltage-controlled source 10, Fig. 1, produces periodic signals which are counted in a counter 24, to produce a count 38, Fig. 2, increases with time, effectively linearly since the steps are small. A value indicative of the required frequency is registered, in digital frequency register 20 which is coupled to accumulator 22; accumulator 22 is driven from a timing system 18, its output comprising a stepped waveform 40, Fig. 2, each step being of a height corresponding to the value registered in the digital frequency register 20. The outputs from counter 24 and accumulator 22 are compared in comparator 24 and unless the curve 38, Fig. 2, passes through the centre of the corresponding horizontal step of the curve 40, a correcting signal is fed via line 16 to control system 12 controlling the frequency of the source 10. To this end comparator 24 produces a sharp pulse whenever coincidence occurs between the outputs of counter 24 and accumulator 22, and these pulses are fed over line 16 to trigger a flip-flop 60, Fig. 4. Restoring pulses are fed to the flip-flop 60 from timing system 18 overline 58. The two outputs from flip-flop 60 are applied to open gates 78, 80, the second inputs of which comprise respectively a positive and a negative voltage; unless flip-flop 60 dwells for the same time period in each of its stable states, a resultant voltage is developed at the output of integrator 82. This is applied over sample- and hold circuit 84 to control the frequency of the source 10. The Specification also describes a modification (Fig. 5, not shown) capable of synchronizing the source to a frequency containing a decimal fraction.
Patent GB-1222038-A (GB)
Title: Method for forming aluminum porous layer
IPC: B23K35/36
Filed: 1969-09-10
Abstract: 1,222,038. Coating with aluminium: fluxes; cleaning metals. UNION CARBIDE CORP. Sept. 10, 1969 [Sept. 11, 1968], No. 44702/69. Headings C7D, C7E, C7F and C7M. A porous aluminium or A1 alloy layer is formed on an aluminium or A1 alloy substrate, e. g. a heat exchanger, by mixing powdered Al and either a powdered Al-7 to 13% Si alloy or Zn, a flux powder comprising alkali metal chloride and a reactive metal chloride which is cadmium bromide or chloride or zinc bromide or chloride, and a metal fluoride, and an inert liquid vehicle to form a slurry, applying the slurry to the substrate, heating to below 300 F. to evaporate the vehicle, and then heating the coated substrate in an inert atmosphere at a temperature between 950 and 1200 F. The liquid vehicle may be acetone methyl alcohol, water, ethyl alcohol. Sodium chromate may be added to the slurry as an inhibitor, Alternatively to increase the shelf life of the slurry it may be frozen. The flux may comprise:- The powdered A1 may be cleaned in phospheric acid (4 to 10% by weight H 3  PO 4 ) or 20 to 30% by weight H 2 SO 4 , 20% Na 2  SO 4 , and 50 to 60% H 2 O. The Al or Al alloy substrate may be cleaned in 5% solution of sodium hydroxide and then rinsing in either 50% HNO 3  or a sulphuric acid-sodium chromate solution.
Patent GB-1198457-A (GB)
Title: Improvements in and relating to Compositions for Producing Air-Entrained Concrete
Inventor: CATTANACH JAMES REID
IPC: C04B28/02
Filed: 1967-10-02
Abstract: 1,198,457. Hydrolysed casein composition. J. R. CATTANACH, J. G. C. HALL, A. B. ROBERTSON, and C. R. TANNER. 2 Oct., 1967 [3 Oct., 1966], No. 44746/67. Heading C3H. [Also in Division C1] A composition for use in producing airentrained concrete comprises in aqueous phase 100 p.b.w. of hydrolysed casein mixed with from 100 to 175 p.b.w. of a polyethenoxy type surface active agent. The casein may be hydrolysed by boiling with ammonium hydroxide and water. A small amount of salicylic acid may be added. The composition in the form of a 3% to 8% dilution in water is worked into a foam and added to a cement mix having a water/cement ratio of 0À25 to 0À50 preferably 0À4.
Patent GB-1078126-A (GB)
Title: Process for the apparatus for determining the permeability of solids
IPC: G01N15/08
Filed: 1964-11-04
Abstract: 1,078,126. Determining permeability. SOCIETE NATIONALE DES PETROLES D'AQUITAINE. Nov. 4, 1964 [Nov. 4, 1963], No.44943/64. Heading G1S. In apparatus for determining the permeability of solid samples, the samples are fed in through a chute 6 into a cylinder 2 and pushed by a ram 3 into a ring 9 surrounded by an elastic membrane 10, which is deformed by hydraulic pressure fluid introduced through a passage 11 to grip the sample. A further piston 4 is moved to close one end of the chamber formed by the diaphragm 10. The heads 12, 18 of the pistons 3, 4 bear stops 26, 27 to prevent their reaching end plugs 28, 29 of the cylinder 2. The housing 1 supports a water tank 35 connected at 36 to a calibrated flask 37 which communicates through a passage 38 with the interior of the chamber formed by membrane 10. In use, air under pressure in the flask 37 is forced to permeate through the sample by the pressure of the water in the flask 37. Consequently, as the air flows through the sample water flows into the flask 37, the time taken for the level of the water to pass from level 41 to 42 being determined by a photo-electric timing device as a measure of the permeability of the sample.
Patent GB-928995-A (GB)
Title: A boiling water nuclear reactor system
IPC: G21D5/06
Filed: 1961-12-15
Abstract: 928,995. Nuclear reactors. GENERAL NUCLEAR ENGINEERING CORPORATION. Dec. 15, 1961 [Dec. 20, 1960], No. 44984/61. Class 39 (4). In a boiling water reactor the core is provided with separate passageways through which water circulates, at least some of the passageways being in serial flow relation, the water being pumped through the central passageway and then passed on to a steam and water separating drum located exteriorly of the pressure vessel containing the core, and the water from the drum is passed through the remaining passageways, each passageway having steam and water separating means. The pump 24 circulates light or heavy water, or any suitable coolant, through the central passageway of the core and into the drum 20 where the steam and water are separated. The downcomer 22 passes the separated water into the second passageway 64 and then into the separating drum 68, while the downcomer 70 enables the further separated water to enter the periphery of the core, the water and steam being separated inside the reactor in this passageway and the water being circulated back to the pump 24. The steam from the two drums and reactor is passed to the turbine 42, condenser 44 and feedwater pump 46 which circulates the subcooled feedwater to either the core via conduits 50 and 70, or to the drum 20 via the conduit 52. Valves 56, operated by the mechanism 58 responding to the load, vary the proportion of feedwater distributed to the central and periphery passageways and the drum 20, thus if an increase of power is desired more feedwater passes to the central passageway, less to the periphery and even less to the drum 20, and vice versa. If the pump 24 fails the valve 62 opens due to lack of pressure on the pump side, and water from drum 20 enters the central passageway. In Fig. 6 (not shown) this emergency circulation is attained by connecting the central passageway to a reservoir disposed at such an elevation that its pressure at the central passageway equals the normal outlet pressure of the pump. In Fig. 1 (not shown) only the first and third passageways exist, and the drum 68 is dispensed with. Fig. 3 (not shown) differs from Fig. 2 in that the second not the third passageway opens at its upper end, steam from the second passageway being separated in the vessel and from the third in an external drum. In Fig. 4 (not shown) the second and third passageway are not in serial relationship, and Fig. 5 (not shown) is similar to Fig. 2 except that for the third passageway the steam and water are separated in an external drum, not inside the pressure vessel.
Patent GB-1472405-A (GB)
Title: Production of pile surfaced materials
IPC: B29C71/00
Filed: 1973-09-27
Abstract: 1472405 Finishing fabrics; pile fabrics IMPERIAL CHEMICAL INDUSTRIES Ltd 13 Sept 1974 [27 Sept 1973] 45226/73 Headings D1K and D1S A pile surfaced material comprising fibrils of a thermoplastic material integrally formed with a sheet of thermoplastic material 1, the sheet being bonded to a backing substrate 2, is heated from the back to a temperature such that and for such time that softening of the thermoplastic material occurs but no substantial collapse of the pile occurs. Preferably, the process is an extension of a process in which the pile surface is formed. As shown, the thermoplastic sheet 1 and the substrate 2 are fed via a feed roll 3 around a heated roll 4 with the sheet 1 against the surface of the roll 4. The roll 3 and a pressure roll 5 holds the sheet and the substrate against the roll 4. The laminate so-formed is pulled away from the roll 4 over a bar 6 and a cold air jet 7 is directed thereon so that the fibrils formed by the adherence of the thermoplastic material to the roll 4 are set to ensure that they remain integral with the thermo plastic material. The pile surfaced material passes around a guide roll 8 and then around a heated roll 9 with the substrate 2 in contact therewith. The roll 9 is at a temperature between 60C, preferably 50C, and 10C, more preferably between 40C and 20C, below the temperature of the roll 4. Specified thermoplastic materials are ethylene and propylene polymers and copolymers, vinyl chloride polymers and copolymers, styrene polymers and copolymers, polyethylene terephthalate and nylon. Specified materials for the substrate 2 are woven and non-woven textile webs, e.g. hessian, cotton net, glass fibre scrims and linen scrims; paper; metal; and cardboard. The substrate 2 may be perforated to aid adhesion between it and the thermoplastic material. If the thermoplastic material is low density polyethylene, the roll 9 is at a temperature of 120C-150C.
Patent GB-1396640-A (GB)
Title: Fastener driving tool with piston return
IPC: B25C1/04
Filed: 1973-09-27
Abstract: 1396640 Fastener driving tools SIGNODE CORP 27 Sept 1973 [20 Nov 1972] 45331/73 Heading B4C A tool for driving nails or staples comprises a housing 11 and a cylinder 12 defining a return chamber 16, a valve 27 for the introduction and exhaust of pressurized gas to and from the cylinder, there being passageways and ports 28, 18, 20 with a non-return valve 103 in the piston and cylinder for allowing the gas in the cylinder to pass to the underside of the piston when this is in its driven position for returning the piston. The valve 27 as shown is in the form of a diaphragm valve which is normally pressed down on the upper rim of the cylinder by a spring 82 and the pressurized air in the chamber 15 acting on the larger upper surface of the diaphragm valve through a conduit 79. When the trigger 94 is pulled to close the inlet 90 to the conduit and allow the chamber 70 above the diaphragm valve to exhaust through a pin passageway 92, the diaphragm valve lifts to permit the pressurized air to enter the cylinder and drive the piston and a fastener from a magazine 37; in its lifted position an exhaust passage 68 through the valve is closed by a resilient pad 75. Upon reaching the driven position, Fig. 4, the driving air passes through the piston passageway 28 and O-ring non-return valve 103 and through cylinder ports 20 into the chamber 16. The release of the trigger re-seats the diaphragm valve and opens the exhaust passage 68 to vent the cylinder to atmosphere through a port 80, the drop in pressure causing the non-return valve 103 to reseat. The pressurized air in the chamber 16 then expands through the cylinder ports 18 into the space under the piston to return the piston. To vent the air used to return the piston, Fig. 5, an O-ring non-return valve 104 expands under the air pressure into a recess 102 at the top of the cylinder to allow the air to pass through piston passageway 97 and exhaust passage 68. In an alternative arrangement, the non-return valve 103 may be placed within the cylinder port 20 instead of in the piston passageway 28.
Patent GB-1199419-A (GB)
Title: Improvements in and relating to Ignition Distributor Caps for Internal Combustion Engines.
IPC: F02P7/02
Filed: 1967-10-05
Abstract: 1,199,419. Rotary distributors; casings. ROBERT BOSCH G.m.b.H. 5 Oct., 1967 [10 Oct., 1966], No. 45345/67. Heading H1N. A cap for a distributor housing is secured by clips 12, Fig. 2, pivotally located in pockets 15 on the distributor housing by bent up end portions 19 slotted at 17 to engage central guiding fillets 18 and sprung open to engage behind projections 21 restricting the opening of the pockets 15.
Patent GB-1524050-A (GB)
Title: Tiered spectator stand
IPC: E04H1/00
Filed: 1975-10-31
Abstract: 1524050 Theatrical appliances C M CHATENAY 31 Oct 1975 [18 Nov 1974] 45456/75 Heading A6M [Also in Division El] A spectator stand comprises a platform 3. pivotally mounted on a support frame at its centre of gravity, and having a plurality of rows of seats parallel to the pivotal axis wherein the support frame comprises a plurality of frame members pivotally connected for movement between a collapsed position and an erect position, height adjusting means operable to pivot the frame members and locking means to maintain the platform in its desired elevated position. The height adjusting means may comprise a cable 23 running over pulleys and tensioned by a jack 15 (Fig. 4), or a jib 40 (Fig. 6a) pivoted to a thrust rod 41 whose lower end is adjusted by a jack 42, or a telescopic jack 53 (Fig. 7). The tiers of seats may be adjusted to the appropriate angle to the inclined tiers by a crank-connecting rod system controlled by a screw threaded rod (Fig. 5a, not shown).
Patent GB-1176298-A (GB)
Title: Thermosensitive Compositions
IPC: C09J7/10
Filed: 1968-09-25
Abstract: 1,176,298. Sealing tapes. POLYMER CORP. Ltd. 25 Sept., 1968 [3 Oct., 1967], No. 45578/68. Headings C3P and C3Q. [Also in Division E1] A heat-softening, non-curable composition suitable for making into a sealing tape consists of (a) 100 parts by weight of an elastomer, (b) 5 to 100 parts by weight of a resinous polymer compatible with (a), (c) 1 to 75 parts by weight of finely divided metal particles, (d) up to 150 parts by weight of a filler, and (e) up to 500 parts by weight of a plasticizer compatible with (a). In the examples (a) is butyl rubber, EPDM, natural rubber, isoprene-acrylonitrile copolymer, or polychloroprene; (b) is ethylenevinyl acetate copolymer, trans-polyisoprene, polyethylene, or polyvinyl chloride; (c) is aluminium powder; (d) is clay or carbon black; and (c) is liquid polybutene, terpene resin, or diisoctyl adipate.
Patent GB-1002869-A (GB)
Title: Improvements relating to projectiles
IPC: F42B12/06
Filed: 1963-11-19
Abstract: 1,002,869. Armour piercing projectiles. P. R. G. GRENANDER, and S. E. PHILIP. Nov. 19, 1963 [Nov. 20, 1962], No. 45689/63. Heading F3A. An armour-piercing projectile comprises a case enclosing a core having a hemispherical forward end which is articulated to a conical cavity in a core-supporting member. A prestressed outer case 1 with a bottom member 2 encloses a core 3, the front end of which is in the form of a hemisphere. In front of the core 3 is a heavy metal core-supporting member 5 having at its rear end a conical cavity into which the hemispherical end of the core 3 fits freely. On oblique impact the front part of the core-supporting member 5 is deflected about its centre of gravity away from the target so that the rear part with the conical cavity is directed towards the target taking with it the forward end of the core 3. The vertical angle of the projectile nose is less than 35 degrees while the case 3 may be divided transversely into more than one part by a dividing line 7 which checks cracks and allows the separate parts to be made of different materials. A notch 8 impedes cracks spreading to the rear of the outer case 1. Specification 752,448 is referred to.
Patent GB-1512858-A (GB)
Title: Shuttering support assembly for use in the production of conical of frusto-conical parts of largecapacity concrete container structures
IPC: E04G11/04
Filed: 1975-11-05
Abstract: 1512858 Shuttering support assembly O HEINZLE 5 Nov 1975 [8 Nov 1974] 45906/75 Heading E1S A shuttering support assembly for the production of conical or frusto-conical parts comprises two spaced superposed frameworks each comprising a plurality of radially extending girders 1, 1', 100, 100' for supporting shuttering boards, arranged around the axis of a conical or frusto-conical shell to be fabricated, adjacent girders being connected by tension or compression beams forming rings about the axis and providing a selfsupporting lattice assembly. The assembly may be mounted on a base 15 or on a towerlike framework 29 to provide the lower and upper sections of a digestion tower (13, 14, Fig. 10, not shown).
Patent GB-1097882-A (GB)
Title: Catheters
IPC: A61F2/958
Filed: 1965-03-01
Abstract: The subject matter of this Specification is substantially the same as that described in Specification 1,097,881 but the claims are concerned with a balloon catheter wherein the balloon is secured by bindings to a rough part of the catheter body and the balloon has a closed end that encloses the tip of the body.
Patent GB-1059140-A (GB)
Title: A method of producing a magnetic record of a sound
IPC: G11B5/00
Filed: 1963-11-22
Abstract: 1,059,140. Printing magnetic records. KALART CO. Inc. Nov. 22, 1963 [Jan. 3, 1963], No. 46179/63. Heading G5R. In printing a variable-area sound track with magnetographic ink from an optical master record, all waveforms are distorted by inkcreep, the desired waveform 1, Fig. 3, reproducing as 1a. As the frequency rises, Fig. 4, the distortions 2a, and particularly 2c cause serious harmonic distortion on playback. This is attenuated by prerecording the master record with an inverse distortion characteristic. The playback arrangements, Figs. 7, 8, use either a permanent magnet premagnetizing head 10 or an electromagnetic head 16 which may be energized by D.C. or by a supersonic A.C.
Patent GB-1498717-A (GB)
Title: Microparticle analysis
IPC: G01N15/10
Filed: 1975-11-07
Abstract: 1498717 Analysis submicron sized particles LAHEY CLINIC FOUNDATION 7 Nov 1975 46240/75 Headings G1A and G1N In an apparatus for analyzing submicron sized particles in a fluid suspension &c. to determine size, shapes and number, the particles are directed past a sensor 12. The sensor 12's output pulses whose heights and shapes are proportional to particle sizes are fed to a secondary pulse generator 20. The secondary pulse generator 20 contains a trigger circuit so that each pulse produces a plurality of fixed width secondary voltage pulses whose height is a function of the sensor pulse at triggering. The secondary pulses are directed to a 200 channel pulse height analyzer 28 which assigns each secondary pulse to a particular channel in dependence upon its pulse height. Thus a type of "size distribution digital histogram", Fig. 3 (not shown) is produced. Information about the particles can then be extracted from the various parameters of the histogram. As shown, the pulse height analyzer may produce analogue outputs in the form of an oscilloscope 30 or a X-Y hard copy plotter 32.  Alternatively the digital signals may be supplied to a data storage unit 24 to which access is provided by a reporting unit 34. The sensor may be of the coulter type or a photo-electric transducer using a Xenon lamp or a laser. Photo-electric sensor. A laser beam 114 Fig. 14, is directed into the fluid stream 84 and the radiation reflected from the particles is received by a photo-detector 88 positioned within a hood 90 containing slits 92, 84. Alternatively the light refracted or diffracted by the particles can be monitored by a detector 100. The detector's output form the sensor output pulses referred to above. A light trap 110 is provided to absorb stray light. Fibre optics cables may be used to receive the radiation and direct it on to the photo-detector.