baber/WOPTO huggingface dataset:
Patent GB-1522480-A (GB)
Title: Rendering
IPC: C04B28/04
Filed: 1975-10-31
Abstract: 1522480 Cementitious rendering composition BRITISH INDUSTRIAL SAND 31 Oct 1975 [27 Nov 1974 29 April 1975] 51469/74 and 17855/75 Heading C1H A substrate is rendered by mixing with water a composition comprising (i) 1 part by volume of a component consisting of Portland cement and optionally fly ash, the fly ash when present being in an amount not exceeding the weight of Portland cement, (ii) from 3 to 9 parts by volume of a component consisting of sand and optionally expanded perlite, the perlite when present being in an amount up to 10% by weight of the component (ii), (iii) from 1 to 10% by weight based on the Portland cement of a thixotropic organic waterretention agent and (iv) optionally up to 2 parts by volume of lime, the composition being free from curable synthetic resin, to provide a sprayable slurry and spraying on to the substrate. The waterretention agent may be a cellulose derivative, proteinaceous material or gum arabic. Additives which may be present in the composition include bonding agents such as polyvinyl acetate, waterrepellent aids, e.g. those based on stearic acid, airentraining agents, e.g. neutralized vinsol resin and pigments.
Patent GB-1372361-A (GB)
Title: Fluid flow control valves
Inventor: SHELDON W J
IPC: F16K31/06
Filed: 1970-10-29
Abstract: 1372361 Valves BURNDEN PARK ENG CO Ltd 22 Oct 1971 [29 Oct 1970] 51564/70 Heading F2V In a valve having a valve member biased to open or closed position the force required to move the valve member a predetermined distance varies during at least part of the operational movement. In one embodiment a loading spring 53 acts via links 62, 67 and bell crank levers 64 on the valve member 57 and on energization of solenoid 72 to open the valve, the linkage arrangement goes over centre to hold the valve in open position. Solenoid 71 is used to close the valve. Valve member 57 carries a P.T.F.E. sealing ring 58. In another embodiment (Fig. 11, not shown) the loading (110) is effective via cams (106) and cam followers (108) and the armature is in two relatively movable parts (70b) (70c). Valve member (103) is hinged to the actuating stem (56a). Coil current magnitude may be reduced by relative movement between valve member and armature or magnetic circuit plug 19 and casing after the valve has gone overcentre. A cam or linkage  arrangement may in addition act between the armature and valve member.
Patent GB-1486810-A (GB)
Title: Display systems
IPC: G09F19/18
Filed: 1974-11-29
Abstract: 1486810 Head-up displays; optical systems ELLIOTT BROS (LONDON) Ltd 26 Nov 1975 [29 Nov 1974] 51842/74 Heading G2J A head-up display unit has at least a part (e.g. CRT casing 5) so disposed as to obstruct the lineof-sight 12 of the observer and a light-deflecting arrangement 7 which enables the observer to see the scene as if the part 5 were absent. The unit also has a source of luminous signals (e.g. CRT screen 9) and means, Fig. 6, for projecting light from the source into the deflecting arrangement 7 so as to be coincident with and thence to follow substantially the same optical path through the deflecting arrangement 7 as light originating from the scene.  The deflecting arrangement 7 of the embodiment of Figs. 1, 3 comprises four partiallyreflecting planar films 21, 22, 31 and 32 which are mounted on a glass structure 16, Fig. 1. The observer, whose eyes are normally positioned at ER and EL, will see, reflected from inner films 21, 22 and outer films 31, 32, the scene directly ahead which is obscured by the CRT casing 5. In addition he will see light (e.g. ray 71) coming from around the sides of the deflecting arrangement 7 and light (e.g. ray 73) coming straight through the deflecting arrangement 7 without reflection. The observer is not subject to any discontinuities in his field of vision as a result of these differing optical paths taken by the light from the scene to his eyes. The means for projecting the CRT screen 9 are shown in Figs. 1 and 6. A transmissive element 13 is positioned at the rear of the output aperture 10. The boundaries between element 13 and further elements 15, 19 define the primary reflector of the Cassegrain system and are provided with reflecting films 28, 29 while the boundary between element 13 and element 17 defines the secondary reflector and is provided with a reflecting film 25. After reflection at the secondary and primary reflectors Fig. 6 light from the CRT screen is reflected from the films 31, 32, 21, 22 of the deflecting arrangement 7 described above. A secondary source 23 of luminous data signals may be provided, the secondary reflecting film 25 being partially transmissive to permit rays 43, 44 from the secondary source 23 to reach the observer as shown. Alternatively, the secondary reflector 25 may be opaque, the light from display source 23 reaching the observer directly through the partially transmissive films 21, 22. As an alternative to the Cassegrain System, a laser and transmissive holographic lenses may be used.
Patent GB-1218629-A (GB)
Title: An apparatus for converting a binary coded number into its binary coded decimal equivalent
IPC: H03M7/12
Filed: 1968-11-01
Abstract: 1,218,629. Binary to binary-coded-decimal conversion. INTERNATIONAL BUSINESS MACHINES CORP. 1 Nov., 1968 [15 Nov., 1967], No. 51902/68. Heading G4A. In a binary to BCD (binary-coded-decimal) converter, a plurality of converting means, each connected to an associated group of stages of a binary input register, produce BCD equivalents, these being summed. The lowest order of the register is supplied to the output direct and the other orders are divided into two or more groups (e.g. odd and even orders respectively), each group being converted to 1-out-of-n form by ANDs (and optionally inverters), this form being converted to BCD form by ORs. The BCD numbers from the separate groups are added in a parallel BCD adder which may use lookahead correction logic, half-adders, full-adders and super-adders (the latter having four inputs, a sum output and two carry outputs, the two carries forming a 2-bit binary number) to provide the rest of the BCD output. Alternatively, a tree of BCD adders or one or more of the multiple-input BCD adders of Specification 1,218,630 which is referred to, may be used for the addition.
Patent GB-1432494-A (GB)
Title: Process for the production of branched aromatic polycarbonates
IPC: C08L69/00
Filed: 1973-11-09
Abstract: 1432494 Phenol derivatives BAYER AG 9 Nov 1973 [9 Nov 1972] 52042/73 Heading C2C [Also in Division C3] Bisphenol-F-bisphenylcarbonate (I) is made (Example 2a) by adding phenyl chloroformate to a 2-phase solution of bisphenol-F, CH 2 Cl 2 , water, NaOH, and (C 2 H 5 ) 3 N at 25 C., and recovering.  4,41 - Dihydroxydiphenyl - dichloromethanebis-phenyl carbonate (II) is made (Example 2b) by chlorinating (I) in chlorobenzene at 80-100 C. in the presence of light, and recovering. Tetra-(4-hydroxyphenyl)-methane (III) is made (Example 2c) by heating (II), phenol, and CH 3 COONa at 50-170 C., distilling off excess phenol, boiling with ethanolic KOH, dissolving in water, precipitating (III) with diluted HCl, and recovering. Hexaphenyl orthoterephthalate is made (Example 3a) by adding a chlorobenzene solution of p-bis-trichloromethyl-benzene to a pyridine solution of phenol, heating to 100 C., and recovering. Tetra - [4 - (dimethyl - 4<SP>1</SP> - hydroxyphenyl)- methylphenoxy]methane is made (Example 5a) by fusing tetraphenyl orthocarbonate and 2,2- bis - (4 - hydroxyphenyl)-propane in the absence of oxygen, distilling off the phenol under reduced pressure at 180-200 C., cooling, powdering, and recovering.
Patent GB-1408356-A (GB)
Title: Production of electrodes
IPC: G01N27/333
Filed: 1973-11-09
Abstract: 1408356 Ion selective membrane MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 9 Nov 1973 [10 Nov 1972(2) 20 June 1973(2)] 52138/73 Heading G1N An ion selective membrane is made by coating particles of CdS, PbS or CuS (selective for Cd, Pb, Cu respectively) with a layer of Ag 2 S by reaction in AgNO 3  solution and compressing the coated particles. The particles are preferably etched before coating in a solution of HNO 3  and are coated by agitating a solution of AgNO 3  containing the particles. The coated particles may be crushed, coated and etched several more times before compressing. In use the surface of the membrane which contacts a solution may be polished and a conductive film of gold, silver, copper or nickel may be formed on the opposite surface. Measurement may be made using a saturated calomel reference electrode.
Patent GB-1213143-A (GB)
Title: Relay amplifier and storage circuit suitable for a variable information display panel
IPC: G09F9/00
Filed: 1967-11-16
Abstract: 1,213,143. Selectively illuminable signs. EPITESUGYI MINISZTERIUM EXPORT FOVALLALKOZO VALLALAT. 16 Nov., 1967 [22 Nov., 1966], No. 52200/67. Heading G5C. Individual lamps or groups of lamps L, forming part of a lamp matrix and selectively illuminable to spell out alpha-numeric characters are controlled by circuits as shown, box 1 serving to recognize and transmit to box 2 only the particular binary signal to which it is designed to respond and the remainder of the circuit including box 3 serving to hold relay T energized after the signal has energized it and died away. The various boxes 1 in the system are connected in parallel and receive the same signals from a single control. Lamp L may be operated by a separate set of contacts as shown or may be connected between A 1  and the lower fixed contact as in Fig. 2 (not shown).
Patent GB-1311557-A (GB)
Title: Fluid operated position selecting device
IPC: F16H63/30
Filed: 1970-11-06
Abstract: 1311557 Change-speed control NISSAN MOTOR CO Ltd 6 Nov 1970 [12 Nov 1969] 52894/70 Heading F2D A compound three-position fluid-pressure servo, providing neutral, second and third ratio positioning of a 2-3 claw clutch, in an all-clutched (including reverse) constant-mesh automatic countershaft gear, driven through a torque-converter on a motor vehicle, comprises a stepped inner piston 26, secured to a clutchactuating rod 50, and slidable in a bore 16 in a fixed cylinder and also in a bore in a piston 24, slidable in a larger bore 14 in the cylinder. Applying pressure fluid at both ends 18, 20 causes the inner piston to assume the central neutral position shown. Blanking the end 20 causes pressure 18, passing through a central aperture 36 in the large piston 24, to move the inner piston 26 to the extreme right, whilst blanking the end 18 causes pressure 20 to move both pistons together to the extreme left. In the countershaft gear, Fig. 2, not shown, the first-ratio and reverse claw clutch is moved only manually, the first ratio including a oneway clutch, which overruns when the engine is decelerated for 1-2 upshift. By exhausting both ends 18, 20 of the three-position 2-3 servo, 2-3 shifts can also be made manually by a separate lever. Power 2-3 shifts are normally made by decelerating the engine to permit first neutralizing, then synchronizing and gear-establishment. No separating clutch is used.
Patent GB-1454748-A (GB)
Title: Gas turbine ducted fan engines
IPC: F02K1/66
Filed: 1972-11-16
Abstract: 1454748 Gas turbine ducted fan engines HAWKER SIDDELEY DYNAMICS Ltd 16 Nov 1973 [16 Nov 1972] 52902/72 Heading F1J The invention relates to a gas turbine ducted fan engine, the fan rotor of which has reversible pitch fan blades for use in aircraft braking, there being means for improving flow of air to the compressor of the core engine when the fan blades are operating in reverse pitch mode. The engine shown in Fig. 1b which is not in accordance with the invention comprises a fan rotor 11 disposed with a fan casing 16, there being stator guide vanes 14 disposed within the fan duct downstream of the fan rotor blades. The inlet 12 to the compressor of the core engine is shown and comprises inlet guide vanes 17. The engine is shown operating in reverse thrust mode in which air is flowing forwardly through the fan to discharge through the normal inlet, some of the air reversing as indicated at 20 to flow through the inlet guide vane assembly 17 to the compressor of the core engine. The swirl imparted to the inflowing air by the guide vanes 14 results in incorrect entry to the guide vanes 17 with consequent inefficient swirling as indicated at 21. In accordance with the invention flow correcting guide vanes 22 are disposed around the intake lip of the core engine and are so inclined as to remove the swirl imparted to the inflowing air by the stator guide vanes 14. The guide vanes 22 prevent a substantially zero incidence angle to the air-flow through the fan duct when the fan rotor blades are in normal forward pitch. As shown the guide vanes 22 are extensions of the inlet guide vanes 17, extending around the intake lip and rearwardly along the outer wall of the intake.
Patent GB-1325575-A (GB)
Title: Harvesting machines
IPC: A01D41/12
Filed: 1970-11-10
Abstract: 1325575 Combine harvesters CLAYSON NV 10 Nov 1970 [14 Nov 1969 15 Oct 1970] 53388/70 Heading A1F A combine harvester is fitted with a dustshield between the elevator 1 and the threshing cylinder 3 to prevent dust and other foreign matter escaping via the elevator. In the first embodiment (Fig. 4) the dust-shield 19 is in the form of a metal plate fixed to a shaft 18 supported on brackets 17 attached to a removable cover 13, through which access to the threshing mechanism may be gained. The cover 13 is sealed in place by sealing strips 14, 15 and has a bracket 23 carrying a tension spring 22. which is attached at its other end to a bracket 21 on the dust shield 19. Movement towards the cylinder 3 is limited by the stop 24. and the stop 26 limits movement away from the cylinder. Thus the dust-shield is resilient enough to accommodate straw carried round by the cylinder. As the cylinder 3 rotates, the resultant air-flow is as indicated at P 1 , and on striking the dust shield 19 this is deflected as at P 3 . A suction effect P 4  is produced prevents dust escaping through this of orifice. A cover plate 27 prevents the build up of straw around the spring, and modifications include the use of adjustable stops 24, 26 and more than one spring 22. A further embodiment (Fig. 9) shows the dustshield made resilient by a compression spring mounted on the removable cover. The dust shield is pivoted at 18 and its movement is limited by the head 32 of the bolt 34 and the extension 38 cooperating with the cover. Alternatively a similar type of dust-shield shown in the first embodiment can be used. To eliminate unwanted air-currents from the straw beater 5, a deflector is attached to the frame of the harvester having a strip 49 of rubber at its end. This deflects the air current from P 5  to P 6  which does not interfere with the current P 4 . To prevent eddy currents in the region between the bottom 46 of the grain tank 7 and the part 51 of the harvester where the tailings auger 6 is located, a guide plate 52 is provided, which also helps to direct the air flow created by the cylinder 3 towards the dust shield. The dust shield 19, deflector 47 and guide plate may be made wholly or in part from metal, plastics or rubber.
Patent GB-1531619-A (GB)
Title: Stabilized polyolefin compositions
IPC: C08K5/13
Filed: 1976-12-22
Abstract: 1531619 Stabilizers for polymers; phenolic esters of alkane polyols DART INDUSTRIES Inc 22 Dec 1976 [2 Jan 1976] 53566/76 Heading C3K A stabilizer for C 2-8  olefin polymer compositions used in coating cupriferous metals consists of (1) a phenol which is a mono- or poly-ester of an alkane polyol, and wherein at least one ester group comprises the moiety where R 1 , R 2  are C 1-5  alkyl and x=1-6, and (2) calcium stearate (#100 p.p.m., based on the polymer weight). In the examples an ethylene-propylene copolymer is stabilized using (A) the pentaerythritol tetraester of 3-(3,5-di-t-butyl, 4- hydroxyphenyl) propionic acid, plus (C) calcium stearate. Comparative examples employ (B), N - N<SP>1</SP> - bis - # - (3,5 - di - t - butyl, 4 - hydroxyphenyl) propionyl hydrazine, either alone or in admixture with components (A) and (C).
Patent GB-1353970-A (GB)
Title: Roll covering machine
IPC: B29C70/68
Filed: 1971-11-18
Abstract: 1353970 Covering rolls by winding AMF Inc 18 Nov 1971 [27 Jan 1971] 53690/71 Heading B8G A strip of elastomeric material from an extruder is wound on a rotating roller, either the roller or the extruder being longitudinally movable in response to an electrical signal produced according to the build-up of the elastomeric material. In Fig. 9, an application roller 108 is mounted on a carriage carrying the extruder, by means of a frame 50 which is pressed towards the roller by a pneumatic cylinder 53. A second cylinder 74 biases the roller 108 axially of the roller. As the turns build up, cylinder 74 is compressed and a potentiometer 175 is adjusted, controlling the voltage applied to a D.C. motor driving the carriage. The thickness of material built-up is also sensed (Fig. 7) by means of a roller 192 bearing on the uncovered portion of the roller, and a roller 220 bearing on the wound elastomer. Switches 238, 242, connected to lights, indicate when the wound thickness deviates from a pre-set range, and these signals may be used to make adjustments to the extruder output.
Patent GB-1147629-A (GB)
Title: Router
IPC: B27C5/10
Filed: 1967-12-04
Abstract: 1,147,629. Woodworking. STANLEY WORKS. 4 Dec., 1967, [8 March, 1967], No. 55041/67. Heading B5L. An electric router having a replaceable cutting tool 31 comprises a generally cylindrical casing 16 having upper and lower ends, an electric motor 56 within the casing and having a tubular armature 14, a chuck 34 at the lower end of the casing received within the armature for selective relative axial movement and co-operating therewith for releasably securing the cutting tool, and slip coupling means for axially moving the chuck relative to the armature and including a rotary knob 96 mounted on the upper end of the casing for movement axially thereof between a normal inoperative position and an operative position wherein a cutting tool is automatically released and secured upon rotation of the knob. The casing has a pair of uprights 20, 22 between a base 18 and a cylindrical portion 24 which receives a screw-threaded part 26 of a housing for the motor 56. The housing can be rotated in the part 24 for adjusting the depth of cut of the tool and an adjusting ring 38 is provided to control the depth of cut; a locking means is provided to secure the part 26 in the portion 24. The rotor 58 of the motor is mounted on the tubular armature 14 which is supported by bearing 40, 46 in the part 26. The lower end of the armature receives a collet 34 keyed by a pin 114 and slot 112 to the armature. The collet is attached by a removable pin 106 to an operating rod 104 which at its upper end is in screwthreaded engagement with a nut 83 on armature 14 and formed with a polygonal extension 102. A sleeve 84 is urged by a spring 42 to an upper inoperative position and rotatably supports the knob 96 which on its under surface has a polygonal recess 100. When the knob is depressed, the sleeve 84 engages nut 83 to hold armature 14 against rotation and the recess 100 engages extension 102 so that, upon rotation of knob 96 in its depressed position, the rod 104 and chuck are rotated and thereby axially moved to release the tool 31 in the chuck 34. A flexible collar excludes dust from the mechanism. The rotor of the motor is engaged by brushes 64 disposed in radial extensions 66, 68 on the motor housing 26, and each extension is formed at its outer end with a handle 74, 76. Each handle includes a switch 80, 82, the switches being connected in series so that an operator must have a hand on each handle and switch before the motor is energized. One of the switches may, in addition, control the speed of the motor.
Patent GB-1156029-A (GB)
Title: Methods of Protecting Foundations of a Structure.
Inventor: SEIDENBERG JACQUES
IPC: E02D31/10
Filed: 1966-12-14
Abstract: 1,156,029. Underground pile structure. J. SEIDENBERG. 14 Dec., 1966 [29 Nov., 1966], No. 55913/66. Heading E1H. A method of protecting foundations of a structure E lying in the vicinity of an excavation or site for a tunnel such as T comprises providing a three-dimensional network of piles S in the ground in proximity to the foundations and between the latter and the excavation or site.
Patent GB-1224743-A (GB)
Title: Production of sintered aggregate
Inventor: TANFIELD DAVID ARTHUR
IPC: C04B33/32
Filed: 1967-12-12
Abstract: 1,224,743. Sintered aggregate. COAL INDUSTRY (PATENTS) Ltd. 10 Dec., 1968 [12 Dec., 1967], No. 56443/67. Heading C1A. Aggregate is produced by treating the run of mine material in a coal preparation plant to separate the material into a coal fraction including also a minor proportion of stone, and a stone fraction including also a minor proportion of coal, the stone fraction is discharged on to a conveyer and the coal in the stone fraction is burnt to heat the stone, whereby the stone is sintered and formed into aggregate on the conveyer. The stone fraction is conveniently the discard from a dense medium circuit of the coal preparation plant.
Patent GB-1396709-A (GB)
Title: Mixers
IPC: B28C5/14
Filed: 1971-12-06
Abstract: 1396709 Mixing apparatus BAKER PERKINS LTD 1 Dec 1972 [6 Dec 1971] 56447/71 Heading B1C In a mixer having one or more stirrers 6 in a container 1, there are clutch elements 16, 17 associated with the stirrer device shaft 7 and the container respectively whereby the container may be tilted for discharging. The container is retained during mixing by a stop pin 19 which is withdrawn by the clutch actuating mechanism 18. As described the drive motor 10 is a radial piston hydraulic motor supplied by a variable output swash-plate pump 12.
Patent GB-1401830-A (GB)
Title: Moulding composition
IPC: C08K13/04
Filed: 1972-12-08
Abstract: 1401830 Thermoplastic polymer moulding compositions CAPE ASBESTOS FIBRES Ltd 7 Dec 1973 [8 Dec 1972] 56717/72 Heading C3P Moulding compositions comprise asbestosreinforced thermoplastic polymers stabilized with a stabilizer composition comprising (1) a phenolic antioxidant, (2) a synergistic sulphur compound and (3) boric oxide, boric acid, zinc borate or a nickel chelating agent. The polymer may be polypropylene, polyethylene, polyvinyl chloride or a polyamide or polycarbonate. The antioxidant may be 4,4<SP>1</SP>-thio bis-(6-t-butylortho cresol) or tris-(3,5-di-t-butyl-4-hydroxybenzyl) cyanurate. The sulphur compound may be thiodipropionic acid or the distearyl or dilauryl ester thereof. The chelating agent may be nickel dimethyl, dibutyl or pentamethylene dithiocarbamate. The composition may be prepared as a concentrate, e.g. containing 60 to 80 per cent of asbestos, and diluted with further polymer. Examples describe compositions comprising polypropylene, asbestos and distearyl thiodipropionate together with (2) tris-(2-methyl-4-hydroxy-5-t-butylphenyl) butane and boric oxide, (3 and 5) tris - (3,5 - di - t - butyl - 4 - hydroxybenzyl) isocyanurate and boric oxide and (4) tris- (3,5 - di - t - butyl - 4 - hydroxybenzyl)isocyanurate and nickel dibutyl dithiocarbamate. The composition may be used in making underbonnet components for cars, e.g. heater units, fan shrouds and carburetter air cleaners.