baber/WOPTO huggingface dataset:
Patent GB-1409508-A (GB)
Title: Ethylene polymer composition
IPC: C08L23/00
Filed: 1973-11-29
Abstract: 1409508 Polyethylene compositions IDEMITSU KOSAN KK 29 Nov 1973 [30 Nov 1972] 55394/73 Heading C3P Compositions comprise (a) a high density ethylene polymer having a viscosity-average molecular weight of 10 x 10<SP>4</SP> to 20 x 10<SP>4</SP>, a number average molecular weight of at least I x 10<SP>4</SP> and a ratio between weight average molecular weight and number average molecular weight of 20 or less, and (b) at least one of calcium sulphite, calcium sulphate and calcium carbonate. The polymer may be a homopolymer or copolymer with minor proportions of propylene, butene or hexene. The calcium compound preferably has a particle size of 0À1 to 10 microns. The compositions may also comprise a further high density polyethylene of melt index 0À1 to 1À0, and a lubricant, e.g. C 10-20  fatty acid metal salts, waxes, C 10-20  alcohols, C 10-20  fatty acid esters of polyhydric alcohols or polyethylene glycol, and C 10-20  fatty acid amides. The compositions have good processability and tear resistance and may be made into films and sheets e.g. by calendering.
Patent GB-1128795-A (GB)
Title: Improvements in and relating to the manufacture of satin white
IPC: C09C1/40
Filed: 1965-12-31
Abstract: 1,128,795. Satin white. FELDMUHLE A.G. 31 Dec., 1965 [31 Dec., 1964], No. 55447/65. Heading C1A. In the preparation of satin white (approx. 3CaO.Al 2 O 3 .3CaSO 4 .31H 2 O) by reacting CaO or Ca(OH) 2  with a stoichiometric amount of aqu. Al 2 (SO 4 ) 3  soln., the CaO or Ca(OH) 2  is first added to a portion, e.g. 30-90%, of the Al 2 - (SO 4 ) 3  and the remainder of the Al 2 (SO 4 ) 3  is then added. The CaO or Ca(OH) 2  is preferably added as a solid to an Al 2 (SO 4 ) 3  soln. of concn. 1-5 BÚ. The mixture may be stirred using a stirrer with a circumferential speed of more than 700 m/sec. After all the reactants have been added it may be allowed to attain a pH of 10À6-10À8 before separating off the aqueous paste of satin white.
Patent GB-1407702-A (GB)
Title: Waveguide structure
IPC: H01P3/127
Filed: 1972-12-04
Abstract: 1407702 Waveguides for the circularelectric mode WESTERN ELECTRIC CO Inc 4 Dec 1972 [8 Dec 1971] 55828/72 Heading H1W A waveguide is supported within a protective conduit by means of a compressible helical member or members. Waveguide 4 may be a helix guide or other kind of circular-electric H 01 -mode guide and is supported within a rigid tube 2 of metal or PVC by means of a single helix (Fig. 1, not shown) or a multiple helix 7 of compressible material. The elongated members from which the helices are fashioned may be rubber tubing (as shown), coiled rods or tubes (Fig. 4, not shown) or stranded rods or tubes (Fig. 5, not shown). In all cases the members intially offer a high compliance due to initial collapse of the tube, spring &c., followed by a lower compliance as the material of the tube &c. is compressed. The tubes springs &c. are designed to be completely flattened as some part of the waveguide touches the conduit, e.g. at a bend. Thereafter, the support stiffens considerably.
Patent GB-1200180-A (GB)
Title: Swash plate pump
Inventor: SPENCE PETER
IPC: F04B1/20
Filed: 1966-12-14
Abstract: 1,200,180. Hydraulic reciprocating pumps; centrifugal and axial-flow pumps. DOWTY TECHNICAL DEVELOPMENTS Ltd. Dec.4, 1967 [Dec.14, 1966], No.56097/66. Headings F1A and F1C. A swash-plate pump has hydro kinetic pumping means 27 in or on the rotary cylinder block 3, the pumping means acting to draw liquid from pump inlet 15 over swash-plate 16, to provide cooling and lubrication of the swash-plate, and to deliver the liquid to the valve plate inlet port 12 of the pump. As shown, the hydro kinetic pumping means comprises passages 27 located between the cylinders 5 in the cylinder block, the passages being shaped, e.g. skewed, to provide centrifugal and/or axial flow pumping. A chamber 28, surrounding the cylinder block on the delivery side of passages 27, has vanes 39 to prevent rotational flow of the pumped liquid. Alternatively, the cylinder block may have external vanes to provide the pumping action. As shown, the block 3 is supported by a bearing 4; and rotated by a shaft 29 supported by a sleeve 32 and bearings 33, 34. Alternatively, the block may be solely supported by a shaft extending through the block. Liquid leaking past the inner periphery of valve plate 11 lubricates bearings 33, 34 and is directed back to the pump inlet 12 by passage 37. Screws 25, 26 limit the adjusting movement of the swash-plate.
Patent GB-1224199-A (GB)
Title: A device for producing artificial reverberation
IPC: G10K15/10
Filed: 1968-11-27
Abstract: 1,224,199. Reverberation devices. AKUSTISCHE U KINO-GERATE G.m.b.H. 27 Nov., 1968 [29 Nov., 1967], No. 56218/68. Heading H4R. An artificial reverberation device includes an helical spring which has straight portions axially extended in the. direction of spring tension joined by a curved portion where the turns are sufficiently spaced to prevent contact between adjacent turns. Since the spring is required to carry out torsional vibration it must be mounted at points on its axis and a spring turn near the end of straight portions 1, 3 is deformed and attached to supports 9, 10 through a suspension wire or small spring. The free ends of the spring are attached to input and output transducers 7, 11. To accommodate very long springs further bends, not confined to a single plane, may be provided.
Patent GB-1373399-A (GB)
Title: Preparation of thalicarpine and related compounds
IPC: C07C205/37
Filed: 1971-12-07
Abstract: 1373399 Thalicarpine and related compounds S M KUPCHAN and A J LIEPA 7 Dec 1971 56767/71 Heading C2C The compounds I  in which R and R 1  are alkyl, aryl, aralkyl or alkaryl are prepared by reaction of a compound II  with a compound III in a dialkyl alkanoylamide in the presence of an alkali metal hydride to give a compound IV reduction of the compound IV with nascent hydrogen to give a compound V and substitution on the nitrogen of the tetrahydroquinolinium moiety of the compound V of an R 1  group. The compounds III and methods of preparation thereof are described in Specification 1,373,399.
Patent GB-1189180-A (GB)
Title: Printing Device
Inventor: WHEELER JOHN WILLIAM
IPC: B41K1/08
Filed: 1967-12-15
Abstract: 1,189,180. Hand stamps. J. W. WHEELER. 11 Dec., 1968 [15 Dec., 1967], No. 56975/67. Heading B6D. A hand stamp comprises a type-carrying frame 1 having in the bottom thereof an elongated slot 2 through which downwardly facing type 9 may be depressed to effect printing on the surface upon which the stamp is positioned; the type 9 being supported on strips of compressible material 5 or suspended by resilient or elastic strips (10), Fig. 5, not shown. The stamp is used in conjunction with a troughshaped holder containing an ink pad. The frame 1 of the hand stamp may be mounted on a base so it can be moved transversely and longitudinally over a sheet of paper to be printed.
Patent GB-1329470-A (GB)
Title: Method for the preparation of grains
IPC: B01J2/06
Filed: 1970-12-04
Abstract: 1329470 Nuclear fuel STICHTING REACTOR CENTRUM NEDERLAND 4 Dec 1970 [9 Dec 1969] 57814/70 Heading G6C [Also in Division C1] A method of making grains of metal oxide, metal oxide hydrate or mixtures thereof with carbon, metal carbide or metal carbonitride comprises adding an excess of one or more NH 3 - liberating agents to an aqueous metal salt solution, which may contain finely divided carbon, maintaining the mixture at below 10 C. and then dispersing it in a hot medium which is non-miscible with water, e.g. paraffin, perchloroethylene, separating the grains formed, washing and then sintering the grains, e.g. in a H 2  atmosphere. The method is particularly suitable for the treatment of actinide salts, e.g. the nitrates of Cl, Th and Pu and the solutions may also contain salts of Hf, Zr, Y or rare earths. The NH 3 -liberating agent, e.g. hexamethylenetetramine to which urea may be added, is suitably present in a 200-1100% excess. In the examples uranium nitrate is treated with (1) hexamethylenetetramine and (2-4, 8 and 9) hexamethylenetetramine and urea, (5-6) thorium nitrate is treated with hexamethylenetetramine, (7) uranium and platinum nitrates are treated with hexamethylenetetramine, (10) uranium and hafnium nitrites and (11) uranium and europium nitrate are treated with hexamethylenetetramine and urea.
Patent GB-1139535-A (GB)
Title: Transmission and control system therefor
IPC: F16H47/08
Filed: 1966-12-29
Abstract: 1,139,535. Change speed control. CATERPILLAR TRACTOR CO. 29 Dec., 1966 [18 Jan., 1966], No. 58138/66. Heading F2D. A control system for the transmission of a heavy duty, e.g. earth moving, vehicle, in which a gear change involves the engagement of range and speed clutches or brakes, provides a pressure fluid supply with separate means for independently modulating the pressure rise at different rates in the respective clutches or brakes. In the transmission shown an input shaft 10<SP>1</SP> is coupled to a hydrodynamic retarder or brake 17<SP>1</SP> and through gear units 21<SP>1</SP>, 4611 to a hydromechanical gear comprising a torque converter 1011 and a series of ratio units controlled by clutches or brakes A ... G. The torque converter is effective only in the first two ratios. Control system details.-A pump 50 delivers pressure liquid to a pressure control valve 66 and a selector valve 55 which incorporates four spool valves 57 ... 60 controlling the liquid supply to the respective ratio clutches and brakes. The pressure valve 66 includes a first system of modulating valves & load pistons (81, 82, 83, 84), Fig. 4 (not shown), for controlling the pressure P 2  supplied by pipeline 61 to the first clutch or brake, and a second system (85, 86, 87) for controlling the pressure P 3  in line 62 applied to the second clutch or brake. In addition a further valve (91) provides in line 68 a pressure P 4 , directly proportional to P 3 , for supply to the torque converter 10<SP>11</SP>. The brake-or retarder 17<SP>1</SP> is controlled by a valve 74 actuated by a manual pneumatic valve 80. Operation.-Upon engagement of neutral or a ratio in which torque converter 1011 is eliminated (first and third traces, Fig. 9), pressures P 1 , P 3  initially rise together and then at different rates to a common maximum value. In the case of the two converter ratios (second trace, Fig. 9), valve 83 operates so that the pressures rise at their different rates to different maximum values which exceed those obtaining for the other ratios. In all cases the converter pressure P 4  is maintained at a constant proportion of the clutch or brake pressure P 3 . During any gear shift the hydrodynamic brake 17<SP>1</SP> is rendered inoperative by a cut-off valve (93) in the housing of the pressure control valve 66, Fig. 4 (not shown), and subjected to the clutch or brake pressure P 3 . Modification.-The pressure control valve may be modified to include a sequence valve (88), Fig. 8 (not shown), to provide a dual rate of rise of pressure P 2 , Fig. 10 (not shown).
Patent GB-1451505-A (GB)
Title: Method of manufacturing a fibre-reinforced metallic article and  a chamber for use in carrying out the method
IPC: B22F3/12
Filed: 1973-12-17
Abstract: 1451505 Welding by pressure MESSERSCHMITT-BOLKOW-BLOHM GmbH 17 Dec 1973 [23 Dec 1972] 58247/73 Heading B3R In making a fibre-reinforced metal article from metal foils each carrying on one surface parallel fibres secured by a surrounding metal mass, the foils are stacked in a compressible chamber, the chamber is evacuated and heat is applied to the chamber to diffusion bond the foils together, the parts of the chamber in contact with the foils being of unalloyed steel provided with an oxidized surface. The foils may be of aluminium alloy or titanium alloy. In one embodiment the stack 3, Fig. 1, is arranged in a bag 1 of unalloyed steel oxidized on its inner walls possibly by heating in air. The bag is evacuated at 2 and pressure is applied to the assembly in the directions indicated by arrows 4, 5. In another embodiment the stack includes upper foils of smaller dimensions that the lower foils to provide steps and unalloyed steel plates 9, 10, Fig. 2, are provided inside the bag 1. The lower plate is flat but the upper plate is shaped to match the shape of the upper part of the assembly and both plates are oxidized. In both embodiments the oxidized surfaces do not adhere to the assembly and may be coated with table salt or a release agent.
Patent GB-1397327-A (GB)
Title: Apparatus and method for memory refreshment control
IPC: G11C7/00
Filed: 1972-12-22
Abstract: 1397327 Refreshing data stores HONEYWELL INFORMATION SYSTEMS Inc 22 Dec 1972 [29 Dec 1971] 59460/72 Heading G4C Each of a plurality of groups of memory elements (e.g. MOS units) is assigned a time interval during a first portion of which the group is refreshed if it is not being accessed by a data processing unit 18 (Fig. 1) and during a second portion of which refreshing is enforced if the group was in continuous use during the first portion.  As described each group is assigned an interval of 60À6 microseconds during the first 57À6 microseconds of which a signal NBLK is applied by clocking means 10 to AND gate 11. The gate also receives a " No Prior Refresh " signal NOPR from Prior Refresh indicator 13 and a " Memory Not Busy " signal. When enabled it passes a signal via OR gate 14 to memory control 17 to refresh the group of cells. The indicator 13 is also reset so that the gate 11 is disabled for the rest of the interval. If however at the end of the 57À6 microseconds the memory Not Busy signal has not been applied and consequently the indicator 13 has not been reset, gate 12 is enabled so that the Must Refresh signal MR from clock 10 at the start of the last 3 microseconds of the interval results in a signal being passed by OR gate 14 to refresh the group. The clock then resets the indicator 13 and before the end of the interval advances a group counter 15 so that the memory control accesses the next group of units in the next interval. The refresh cycle is inhibited if the group of elements has been accessed by the data processing unit since this eliminates the necessity to refresh.
Patent GB-1390688-A (GB)
Title: Printing presses
IPC: B41F31/26
Filed: 1972-12-27
Abstract: 1390688 Inking rollers SIMON-VK Ltd 23 Nov 1973 [27 Dec 1972] 59602/72 Heading B6C An inking roller 1 comprises a sleeve 9 mounted on a shaft 5 between journals 2 and 6 in which the shaft passes through journal 6 and is fixedly engaged, as by screw-threading 4, with journal 2 and means, such as a hexagon head 8, to secure the assembly, The journals are mounted in the walls of a printing press and the removable shaft facilitates replacement of worn inking rollers.
Patent GB-1372224-A (GB)
Title: Vibration mill with heat-insulated grinding chamber
IPC: B02C17/14
Filed: 1971-12-22
Abstract: 1372224 Vibratory mills KLOCKNER-HUMBOLDT-DEUTZ AG 22 Dec 1971 [24 Dec 1970 (2)] 59668/71 Heading B2A A vibratory mill includes at least one grinding chamber on an oscilatory frame, heat insulating material and one or more heat insulating supports capable of transmitting acceleration forces between the chamber and frame being provided between the chamber interior and the frame. Two chambers 1, 2 may be supported on a frame comprising members 4 connected by a tube 5, brackets 6 being supported through rubber springs 7 on a fixed frame 8, and eccentrically rotatable weights (not shown) being provided within the members 4 to effect oscillation. Material may be fed through the chambers 1, 2 in series, through an inlet 10, connection 12 and outlet 13. An inner grinding tube 15, provided with a wear plate 16, may be spaced from an outer casing 18 by strips 17, e.g. of PTFE, the intervening spaces being filled with foamed polyurethane. Alternatively, Fig. 4, the facing surfaces of the casing 18 and tube 15 may be lined, e.g. with PTFE or hexafluoropropylene 21, 20, spaced by members 22, e.g. of porcelain or glass, the intervening space being filled with insulating material 30. Further, Fig. 5, the tube 15 may be connected to the casing 18 by a flexible band 23 to provide the support. The casing 18 may be surrounded by a heating or cooling jacket, fluid being directed through axially running passages (35), Figs. 8, 9, 11 (not shown), or through a pair of helical passages (42), (43), Fig. 10 (not shown), around the tube 15. Circulation of the fluid may be controlled by a temperature sensor (44), Fig. 12 (not shown), for monitoring the temperature of a chamber clamping member 3. Alternatively, electrical resistance heating elements may be provided.
Patent GB-1357038-A (GB)
Title: Photodegradable polymer compositions
IPC: C08L33/12
Filed: 1971-12-23
Abstract: 1357038 Photodegradable resins or resin compositions; foamed polymers SEKISUI KAGAKU KOGYO KK 23 Dec 1971 [28 Dec 1970 (2)] 60159/71 Headings C3P and C3C A photodegradable (i.e. degradable by sunlight and U.V.) polymer or polymer composition comprises (a) from 50-100% by wt. of a copolymer of (i) 95À1-99À9% by wt. of units derived from styrene and/or methyl methacrylate, (ii) 4À9 to 0À1% by wt. of units derived from a conjugated diene and (iii) 0-4À8% by wt. of units derived from a ketone of formula in which R 1  and R 2  are the same or different H, CH 3 , or phenyl groups and R 3  is CH 3  or phenyl, the sum of (i), (ii) and (iii) being 100%, and (b) 0-50% by wt. of a synthetic thermoplastic resin other than said copolymer, (a) and (b) totalling 100%. The copolymer is characterized by its low content of diene, dienes specified being butadiene, isoprene, chloroprene, 2,3-dichlorobutadiene and 2,3-dimethylbutadiene. Ketones specified are methyl vinyl, phenyl vinyl and phenyl propenyl ketones, and benzalacetophenone. The thermoplast (b), which is optional, may be for example polystyrene, polyethylene, polymethyl methacrylate and PVC. If (b) is present, the components may be blended, or the monomers for (a) polymerized in the presence of (b). The polymer or composition may be used to make disposable articles, which, under the prolonged influence of sunlight, degrade and become powdery. In the examples, the following polymers and compositions are prepared, conforming to the specified percentages: styrene/butadiene and styrene/isoprene with and without polystyrene; styrene/butadiene/methylmethacrylate; styrene/butadiene/benzalacetophenone; styrene/isoprene/phenyl vinylketone; methylmethacrylate/butadiene, methylmethacrylate/isoprene and methylmethacrylate/butadiene/methyl vinyl ketone with and without polymethylmethacrylate; and methylmethaacrylate/butadiene/methyl vinyl ketone mixed with PVC. Additional compositions comprise styrene/ butadiene and styrene/isoprene copolymers foamed with butane, the butane having been impregnated into the polymer by introducing it into an aqueous dispersion of the particulate polymer (Examples 9 and 10). A methyl methacrylate/butadiene copolymer is similarly treated with n-hexane. The degradability of the above polymers and compositions is tested with a U.V. lamp.
Patent GB-1328829-A (GB)
Title: Material distributors
IPC: A01F25/18
Filed: 1970-12-18
Abstract: 1328829 Distributing materials BADGER NORTHLAND Inc 18 Dec 1970 [24 Dec 1969] 60200/70 Heading B8E A material distributer for feeding a silo 10 comprises a blower 12, a series of pipes 14 to carry material from the blower, an adapter 18 attaching the lower pipe 14 to the blower and allowing relative rotation therebetween, a hood assembly 16 attached to the upper pipe 14 for directing material into the silo, and a lever 72 for controlling the hood assembly. The latter comprises a curved nozzle 46 secured to the upper pipe 14 and pivotally connected through arms 50, 54 to a swivel pin 52 on the silo wall, and an open bottomed extension nozzle 60 telescopically slidable over the nozzle 46 to vertically vary the ejection angle of the material. The nozzle 60 is spring biased about a pivot 58 into the extended position and is held retracted by a cable 66 and chain 70 coupled to a control lever 72. The latter is secured about a horizontal pivot to the lower pipe 14 and is movable in horizontal and vertical planes into registering positions in a cam plate which each represent a different discharge area within the silo. The coupling between the chain 70 and lever 72 is adjustable along the lever to vary the angle of discharge of the nozzle 60 as the material level in the silo varies.
Patent GB-1335778-A (GB)
Title: Method and apparatus for the detection of gaseous impurities in an ambient atmosphere
Inventor: LIEBERMANN LEONARD N
IPC: H02H3/02
Filed: 1971-12-29
Abstract: 1335778 Gas detecting devices T I F INSTRUMENTS INC 29 Dec 1971 [16 March 1971] 60599/71 Heading G1N Gaseous impurities in an ambient atmosphere are detected by applying voltage pulses across a pair of electrodes disposed in the atmosphere, the voltage being sufficient to cause a corona discharge in the continuous corona region (definition given), and detecting either the mean corona current, i.e. the D.C. component, or the peak corona discharge current. A simple ammeter may be used for detection, Fig. 1 (not shown), but as shown in Fig. 4 an audible output which provides a series of clicks is used. The negative-going pulser of a pulse source 20 are applied to electrode pair 23, in the form of a point electrode and a hemispherical electrode, and the mean current is detected using an R-C circuit 28, 29, 30 connected to the output winding 22 of a transformer 21 in the source 20. A sensitivity switch 31 connects the RC circuit to the gate of an FET 34 in a multivibrator 35 which supplies a speaker 36. Impurities are manifested by a higher frequency clicking rate, and leaks, e.g. in refrigerating systems, are detected in this manner. A bias supply 32 is provided to an additional bias current, in the low sensitivity position to the gate of FET 34. In an alternative, Fig. 5 (not shown) the FET 34 is provided in a bridge circuit having a voltmeter connected in its diagonal.
Patent GB-645401-A (GB)
IPC: F16C27/04
Abstract: 645,401. Bearings. MOWER JETS (RESEARCH & DEVELOPMENT), Ltd. March 2, 1945, No. 5325. [Class 12 (i)] A race-type bearing (ball, roller, or tilting pad moving between inner and outer ring members) has the shaft-support face or the housing-engaging face, or both such faces, of such ring members formed with tangential slots so providing cantilever arms by which is effected the support of the shaft or the support of the bearing in the housing. Alternatively an intervening bush may be formed with such slots. As shown, there are provided an inner bush 8 between the shaft 1 and inner ring 6 of a ball bearing and an outer bush 9 between the outer ring 7 of the ball bearing and the housing 2, such bushes being tangentially slotted to a certain depth to provide cantilver support elements. The slots 4 may also be utilized for the passage of cooling air. One slot may be carried right through the bush which thus becomes of split-ring form facilitating assembly of the bearing in its housing and on the shaft. The races themselves may be so slotted. The slots may have frictional fibre filling to damp critical speed vibrations or rubber fillings to increase the resilience. Creeping may be avoided by providing oppositely arranged series of slots.
Patent GB-729884-A (GB)
Abstract: 729,884. Measuring rotary unbalance electrically. DAIMLER-BENZ AKT.-GES. Sept. 2, 1953 [Sept. 2, 1952], No. 24279/53. Class 40 (1). Apparatus for measuring the rotary unbalance of a shaft 3 (Fig. 1) comprises a coil 5 located in the bearing 1, having an iron core 4 with a point protruding towards the shaft but just not touching it, forming the centre limb of an E-shaped yoke, so that variations in the distance of the surface of the shaft 3 from the point of core 4 produce variations in the inductance of coil 5 which are measured in a bridge circuit. The iron yoke is mounted on a threaded rod 7 which is adjustably secured by nuts 11, 12 to a cover-plate 10. There may be more than one measuring point round the bearing.