baber/WOPTO huggingface dataset:
Patent GB-1220727-A (GB)
Title: Control response valve for hydrostatic transmission
IPC: F04B1/26
Filed: 1968-10-08
Abstract: 1,220,727. Reciprocating pumps. TOWMOTOR CORP. Oct.8, 1968 [Oct.16, 1967], No.47640/68. Heading F1A. [Also in Division F2] The rate of control response in a hydraulic transmission, which includes a pump having its displacement varied by jacks 40, is controlled by an adjustable valve 60 connected cross conduits 47 inter-connecting the jacks and a control valve 46 which is linked to a manual control lever 51 and a pump displacement linkage in a follow-up servoloop 50, 52. The axial piston fluid pump 11 and a motor 12 are connected in a fluid loop by conduits 13 and 14, the variable displacement swash-plate 20 being driven by input shaft 21. The angle of swash-plate 20 is controlled by jacks 40 which are spring- loaded to tilt the swash-plate towards the neutral position. A single double ended ram may replace the two separate rams. A valve spool 48, which connects one or other of the chambers 45 to the pressure fluid source and the other chamber to reservoir, is moved by an arm 50 connected to the swash-plate 20 and by a linkage 52 to the lever 51. When the latter is moved the valve spool 48 is displaced in one direction or other until arm 50 moves sufficiently to return the valve spool to its neutral position. Valve 60 is set to bleed pressure from the highpressure side to the lower pressure side e.g. if the pump displacement is being increased with the valve open the movement of the swash-plate is slowed down and if the pump displacement is being decreased the movement of the swash-plate is speeded up. Valve 60 may be integral with valve 46 and may be controlled conjointly with lever 51. (For Figure see next page)
Patent GB-1208308-A (GB)
Title: Electroluminescent display devices
IPC: H05B33/26
Filed: 1967-10-20
Abstract: 1,208,308. Electroluminescence. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 20 Oct., 1967 [27 Oct., 1966 (6)], No. 47922/67. Heading C4S. The pattern displayed by an electroluminescent sign is determined by applying a layer of a conductive substance, e.g. water, to the display surface whereupon the portions so coated glow. The device comprises an element 3 (e.g. ZnS: Cu Al in plastic binder such as urea resin) which luminesces according to the electric field strength applied thereto and electrodes for supplying power, one W wire electrode 5 being exposed and having a plurality of parts separated spatially but connected together electrically. The electrode 5 forms, in effect, one of the plates of a capacitor, and applying a conductive layer increases its effective area, causing the element 3 to glow in the vicinity of said layer. Electrode 5 comprises either a plurality of spaced parallel wires or a reticular structure. It is mounted on a dielectric layer 4 of epoxy resin for instance. Either the layer 4 or the electrode 2 and base 1 are transparent, allowing the pattern to be viewed. The device may operate on D.C., Fig. 3 (not shown), including as luminescent material SiC, CdS or thin film evaporated ZnS: Cu, Mn, but then the resistivity of dielectric layer 4 must be lower. Fig. 2 (not shown), illustrates the provision of a high insulation polyester film layer (9) between layers 4 and 3, to prevent breakdowns. The layer may be powdery barium titanate in a plastic binder and reflective. Figs. 4 and 5 (not shown), illustrate embodiments comprising two sets of electrodes 5 arranged on either side of a common base: in Fig. 4, there are two electroluminescent layers, one for each electrode, permitting display in two colours; in Fig. 5 there is one common electroluminescent layer which can be arranged to glow solely at the intersection points of the two electrodes. Fig. 6 includes green and orange emitting layers 14 and 16 of ZnS: Cu, Al and ZnCdS: Ag, respectively. Fig. 7 shows an arrangement having three electrodes, of which 15 and 19 are of the composite type, two sources of power 23, 24, and two luminescent layers 14, 16, which may emit different colours. By selecting appropriate voltages, currents I 1  and I 2  can be made to cancel, thus eliminating the residual ("dark") luminescence of the device; application of a pattern-forming droplet 25 causes a current I<SP>1</SP> 1  to flow, the resulting glow contrasting strongly with the background. The embodiment of Fig. 8 has three electroluminescent layers 14, 16, 25 for different colours, and electrodes 12, 15, 19, and is generally similar to that of Fig. 7. A range of materials is disclosed for the pattern-forming conductive layer which may be permanent or temporary, and in the latter case can be applied by a brush and removed by wiping off.
Patent GB-1140553-A (GB)
Title: A method of and apparatus for hot straightening elongated metal workpieces
IPC: B21D3/00
Filed: 1967-10-20
Abstract: 1,140,553. Straightening. AEG-ELOTHERM G.m.b.H. 20 Oct., 1967 [16 Nov., 1966], No. 47933/67. Heading B3E. [Also in Division C7] A method of hot-straightening elongated bent metal workpieces comprises partly or wholly inductively heating the bent workpieces whereby an electromagnetic straightening force generated in the workpiece thrusts it against straightening tools, and then cooling the straightened workpiece. An apparatus for carrying out the method comprises a linear inductor 2, a return conductor 4, and a soft iron magnetic core 3 which forms a return path for the magnetic flux. The magnetic field established by the heating current will force the workpiece 1 against straightening rollers 5 and 6, if the workpiece is non-magnetic or is heated above the Curie point. If the workpiece retains its magnetic properties at the temperature to which it is heated then the thrust 7 will act towards the heating unit and the straightening rollers (15, 16), Fig. 2 (not shown) will be positioned on the same side of the work as the heating unit. The rollers are driven and the rotation of the workpiece is continued after the heating current is shut off, so that it is straightened as it cools. Badly bent workpieces are mounted between centres and the straightening rollers, which are initially out of contact with the workpiece, are not brought against it until its stiffness has been reduced by heating. A production machine, Fig. 4, for carrying out the method comprises a drum 33 rotatable about its centre 35 and carrying several pairs of rollers 85 which each support a workpiece. Each workpiece is heated by a unit 36 and the drum is indexed to move the workpiece into a quenching bath 31. The apparatus may also be arranged so that the axes of the drum and workpieces are vertical. The straightening force is proportional to the heating current, which varies inversely with the frequency, and to increase the straightening force during part of the cycle, the frequency of the supply is reduced. The straightening rollers are brought against the workpiece after a predetermined time interval or when its surface reaches a predetermined temperature.
Patent GB-1281049-A (GB)
Title: A process and an apparatus for separating particles
Inventor: BALTAR CARLOS RODRIQUEZ
IPC: B03C7/00
Filed: 1969-09-30
Abstract: 1281049 Electrostatic separation C R BALTAR 30 Sept 1969 48105/69 Heading B2J [Also in Divisions Cl F2 and H2] Particles, e.g. of minerals, are separated by electrostatically charging the particles, reducing the charge on the particles containing a given material by irradiating the particles with energy of an appropriate wave-length, and then separating the particles on the basis of their residual charges. Preferably the irradiation is such to give rise to secondary emission, e.g. light from those particles influenced by the radiation and thereby reduced their charge. If desired the particles may be heated before they are charged either so that they cool, whilst being charged and irradiated or so that their temp. does not drop to any significant extent between heating and charging. The particles may be separated using an apparatus comprising a means for electrostatically charging the particles, and means for reducing the charge on those particles containing a particular material, by irradiating them with energy of a wave-length to which the particles are responsive, together with a means for separating the particles on the basis of their residual charge. In a preferred embodiment, Fig. 1, particles from a hopper 1 are discharged through adjustable orifice 4 on to a metallic ramp 17 which can be altered in slope or agitated by electromagnet 16, to provide a uniform feed of particles on to rotating drum 9. On drum 9 the particles are subjected to a high tension, high intensity electric field by means of one or more pointed electrodes 6 connected to a high voltage generator. The positions of these electrodes are variable in height and position with respect to the drum 9. After the electrodes 6, in the direction of rotation of the drum 9, there is positioned a radiation source 7, which may be an infra-red emitter, a Wood or blacklight emitter, an X-ray tube, a U.V. tube or an emitter of radio waves. Following the source 7 is a deflecting electrode 8, which serves to distribute the particulate material being treated into appropriate hoppers 11. Those particles which adhere strongly to the drum are removed by scraper-brush 18 or electrode 13. Displaceable covers 10, 12 bridge the common edges of hoppers 11 and serve to improve the selectivity of the hoppers for particular materials. To give the required control of the speed of drum 9, a linearly adjustable speed controller 14 is fitted between the prime mover 15 and the drum 9. The hopper 1 may be fitted with heating unit 2 and temperature sensor 3 so that the temp. of the material may be raised to a particular level before treatment, and the ramp 17 may also be subject to radiation from infra red source 5 for the same reason. The temperature sensor 3 may be used to control the speed of drum 9.
Patent GB-1210837-A (GB)
Title: Improvements in or relating to cameras
IPC: G03B17/14
Filed: 1968-10-11
Abstract: 1,210,837. Collapsable cameras. BALDA WERKE PHOTOGRAPHISCHE GERATE UND KUNSTOFF R GRUTER N.G. Oct.11, 1968 [Oct. 17, 1967], No.48272/68. Heading G2A. A camera has a retractable lens carrier 6 Fig.1, and a flat cover plate 55, Fig.2, slidable in a plane at right angles to the lens optical axis and which are moved from a packed position by control means which cause the lens carrier and the cover plate to be moved sequentially one after the other without mutual hindrance. Control cams (21), Fig.15, (not shown) and 26, Fig.13, are provided on a cam slide 22, Figs.2 and 13 movable at right angles to the optical axis of the camera lens. To achieve the ready state, a release key 32, Fig.2, is pressed into the body of the camera to move a rivet pin 41, Fig.2b, which is provided on a release rod 35 coupled to the release key, out of engagement with a catch nose 31, Fig.13,of a Z-shaped recess 29 provided on the cam slide 22. The cam slide under the action of spring 43, Fig.2 is now free to move to the right. During the first part of its movement, the control cam 27 moves the cover-plate 55 to uncover an opening 2 for the lens carrier and an opening 58 for a view finder. The profile of control cam (21) is such that the lens carrier is not moved until the cover-plate has uncovered the opening for the lens carrier. At the start of the movement of cam slide 22, the rivet pin 41 is located in the left hand arm 40" of a U-shaped guide slot 40, Figs.2 and 2b, provided on a fixed plate 38, but after release of key 32 and movement of the cam slide, the rivet pin is located in the position shown in Fig.2b, the release rod 35 being pivoted anticlockwise so that a nose 39, Fig.2 of the release rod is located at a position 39' adjacent to the camera shutter release, and the release key is pivoted to a position 32', Fig.2, to be ready to function as a shutter release. The camera is closed by manual pressure upon cam slide 22 in the direction of the arrow shown in Fig.2.
Patent GB-1334449-A (GB)
Title: Acoustic coupler
Inventor: KILMER CHARLIE C
IPC: H04M1/215
Filed: 1971-10-18
Abstract: 1334449 Handset mountings INTERNATIONAL BUSINESS MACHINES CORP 18 Oct 1971 [30 Sept 1970] 48303/71 Heading H4J An acoustic coupler for coupling signals into and out of a telephone handset 16 comprises a pair of transducers 50 coupled to the earpiece and mouthpiece respectively. Each transducer is mounted e.g. by cementing, in the base of a generally cup-shaped body 35 that is itself cemented into a cylindrical pillar 32. The latter is of resilient material and is formed with a flange 31 which is screwed to a plastics base-plate 21 through the intermediary of foamed isolators 23, 24. A resilient seal 40 for the ear/mouth piece is connected to the body 35. The seal has tapered walls which are normally spaced on their outer surface from the inner surface of body 35 except at the top around the rim and at the bottom where an outwardly extending shoulder firmly abuts the body 35. The construction is such that the coupler accommodates a variety of handsets in an approximately optimum position relative to the transducers 50 and the handset and transducers are acoustically isolated from the environment.
Patent GB-1315164-A (GB)
Title: Motor vehicle with means for compensating for disturbing influences
IPC: B60G21/06
Filed: 1970-10-12
Abstract: 1315164 Motor vehicle suspensions DAIMLER-BENZ AG 12 Oct 1970 [28 Feb 1970] 2 May 1970] 48308/70 Heading B7D  Means for controlling the suspension height of a vehicle, for connecting the longitudinal trim of the vehicle body when accelerating and/or for counteracting body roll in a turn comprise servo systems controlled by one or more analogue or digital electronic computers connected to means responsive to movement of and changes of force or pressure in or on the body or other vehicle parts. As shown, hydropneumatic suspension units 27 associated with the front wheels 22, 23 and rear wheels of the vehicle communicate with respective pressure reservoirs 28 supplied by a pump 29 through hydraulic valves 32 which are electrically controlled by an electronic analogue computer 33 mounted on the vehicle body and connected to pulse transmitters responsive to movements of the units 27 or pressure changes therein. The computer 33 may include a gyroscope for detecting movements of the vehicle body.
Patent GB-1148650-A (GB)
Title: Stereoregular coordination catalyst system having nitrogen-containing polymers
Inventor: BACSKAI ROBERT
IPC: C08F4/64
Filed: 1967-10-24
Abstract: 1,148,650. Polymerization of mono-α-olefins. CHEVRON RESEARCH CO. 24 Oct., 1967 [17 Nov., 1966], No. 48366/67. Heading C3P. [Also in Division B1] Mono-α-olefins having 3 to 6 carbon atoms are polymerized in the presence of a catalyst which comprises an alkylaluminium halide, in which the ratio Al: halogen is 1: 1 to 1: 2, the alkyls have 1-6 carbon atoms and the halogen is Cl or Br, a titanium trihalide in which the halogens are Cl or Br, and a polymer of an additionpolymerizable monomer containing N as a tertiary amine. The mole ratios of alkylaluminium halide to titanium trihalide is 1: 1 to 10: 1 and that of polymer nitrogen to titanium is 0À5: 1 to 10: 1. The catalyst polymer may be a homopolymer or a graft polymer. In Example 1, propylene is polymerized using titanium trichloride, diethylaluminium chloride and a mixture of polyvinylpyridine and a graft polymer of 2-vinylpyridine and polypropylene. Example 2 has ethylaluminium sesquichloride replacing the (C 2 H 5 ) 2 AlCl. Example 3 illustrates a cyclic process wherein propylene is polymerized using activated TiCl 3 , C 2 H 5 AlCl 2  and a graft copolymer of propylene and 4-vinyl pyridine. Example 4 illustrates polymerization of propylene using a catalyst composition similar to that in Example 3.
Patent GB-1194930-A (GB)
Title: Improvements in or relating to Automatic Greasing Devices for Articulated Joints
IPC: F16C11/06
Filed: 1967-10-24
Abstract: 1,194,930. Ball joints. SOC ANON ANDRE CITROEN. 24 Oct., 1967 [21 Nov., 1966; 9 Feb., 1967], No. 48376/67. Addition to 1,113,626. Heading E2F. An articulated joint as described in Specification No. 1413,626, including a ball member 3a and a seating 4 therefor with an automatic greasing device consisting of a communication passage 9 between the grease reservoir chamber 8 and the region 5a, adjacent the aperture in the seating, is modified by providing a non-return valve 16 which opens in the direction to provide movement of grease from the reservoir towards the region 5a, in the passage 9. The communication passage may be bored through the casing 5 or, as shown in Fig. 2, through the ball member.
Patent GB-1375673-A (GB)
IPC: G03C5/18
Filed: 1972-10-20
Abstract: 1375673 Developers for diazotype materials RICOH KK 20 Oct 1972 [4 Nov 1971] 48376/72 Heading G2C A liquid developer which is used to develop 1 or 2-component diazotype materials comprises a solution of 1 part by weight of an inorganic alkali, 1 to 2 parts by weight of water (based on alkali) and 1 to 5 parts by weight of glycerine or a glycol (based on weight of water) and a coupler if a 1-component material is to be developed. The developer may also contain less than 15 per cent by weight of an amine based on the total weight of developer. Specified glycols are di - and tri-alkylene glycols and polyethylene glycol of molecular weight between 190 and 400.
Patent GB-1370358-A (GB)
Title: Metering of bulk material
IPC: G01G11/00
Filed: 1971-10-18
Abstract: 1370358 Feeding material to an endless conveyer W KNOL 18 Oct 1971 [16 Oct 1970] 48428/71 Heading B8A [Also in Division G1] To determine the weight of bulk material being conveyed by a conveyer, the force exerted by the conveyer on the material to accelerate the material is measured. The material is discharged from silos 1 on to a conveyer 4 driven by a motor 9, the conveyer/motor unit 4-9 being supported by a frame 11 suspended on pivotable supports 12 and steadied by a spring 14 to eliminate the effect of vertically-acting forces such as weight. When material is fed on to the conveyer the unit is horizontally displaced and the displacement, a measure of the mass of the material, is determined from a sensing element 13 provided with a strain gauge, the output from the device being electrically processed. A fluid cushion could replace the supports 12. Blades 7 may be provided and extend perpendicularly to the plane of the conveyer belt or alternatively they may be at an angle to the plane of the belt. The material is deposited on a discharge conveyor 15 above which a baffle 16 is provided in case the belt 4 runs at high speed and flings the material against the baffle.
Patent GB-1526765-A (GB)
Title: Method and apparatus for x-ray or ypsilon-ray 3-d tomography using a fan beam
IPC: G06T1/00
Filed: 1975-11-25
Abstract: 1526765 Tomographic scanning LEYLAND STANFORD JR UNIVERSITY BOARD OF TRUSTEES 25 Nov 1975 [29 Nov 1974] 48437/75 Heading H4F In a radiological examination apparatus for examining an object by irradiating it with divergent beams of X or gamma radiation and detecting radiation transmitted along divergent beam paths by means of detectors, the radiation source and detectors orbiting the object to irradiate it from different orientations, the signals derived from the divergent beams are reorganized into sets of signals derived from different source positions but all having parallel beam directions, this reorganization being carried out in the signal processing stage. Where the lateral spacing of the parallel beam directions is not uniform in the reorganized sets correction is made for this. The Specification gives a mathematical analysis of the processing together with the required algorithms and a computer program for carrying out the processing. The Specification also describes a gas filled ionization detector for use in the scanner and this detector is described and claimed in Specification 1,526,764, see Division H1.
Patent GB-1369950-A (GB)
Title: Power operated tools
IPC: B23D51/18
Filed: 1971-11-13
Abstract: 1369950 Reciprocating saws H LINDLEY Ltd 13 Nov 1971 48576/73 Divided out of 1353103 Heading B5L A power operated reciprocatory tool comprises a hacksaw 114, a rotary fluid motor, an inlet connection for connecting the motor to a source of pressurized fluid, a manually controllable valve arranged to control the flow of fluid from the inlet connection to the motor, and a transmission mechanism for converting rotary motion from the motor into reciprocatory motion of the hacksaw. The fluid may be liquid or gas. As described a rotary hydraulic motor and valve block are mounted in a case 101, and a Scotch yoke mechanism is provided in a crankcase 107, 108 for converting rotary motion of the motor output shaft into reciprocatory motion of the upper part 113 of a frame supporting a hacksaw blade 117. A handle 102 is provided on the case 101, and is adjacent a lever 124 which controls a valve through which the motive fluid for the motor passes.  The case 107, 108 is pivotally mounted by legs 129, 130 on a base 133. The base also carries fixed and movable vice jaws 134, 135 respectively arranged so that when an article is gripped thereby the saw can be advanced under its own weight to cut the article.
Patent GB-1507799-A (GB)
Title: Variable venturi downdraft carburettor
IPC: F02M9/133
Filed: 1976-11-23
Abstract: 1507799 Spray carburetters C L GRAYBILL 23 Nov 1976 48771/76 Heading F1H Downdraught carburetter 10 comprises an operator-controlled Venturi member 20 which is movable along the axis of a fixed Venturi member 21 which includes an annular orifice 18 through which an air/fuel emulsion is drawn to mix with the main air-flow through the annular gap between the two Venturi members. Float chamber 45 includes vent 49 and is connected to chamber 30, associated with orifice 18 by emulsion tubes 33 having perforations 36 which communicate with apertures 39 leading to the float chamber air space. Several air holes 51 also open into chamber 30, each hole is controlled by a throttle screw 52. Grooves 78 and slots 82 regulate the mixture strength at starting. Over-richness at small throttle openings is prevented by directing air into orifice 18, the air being that which enters holes 63 and is discharged from holes 65 and slots 64. Air also enters through holes 51. The engine speed is increased by withdrawing operator-controlled cam 69 from beneath Venturi member 20 and as this occurs the concave upper surface of member 20 directs air into orifice 18. Slots 82 and grooves 78 become progressively less effective as member 20 moves downwardly and at greater openings the mixture strength is controlled by emulsion tubes 33. A heating jacket 87 for connection to an engine liquid coolant system surrounds the body adjacent orifice 18.
Patent GB-1362997-A (GB)
Title: Catalysts and catalytic precesses
IPC: C07C51/12
Filed: 1971-10-20
Abstract: 1362997 Carboxylic acids BP CHEMICALS INTERNATIONAL Ltd 2 Oct 1972 [20 Oct 1971 20 Dec 1971] 48777/71 and 58991/71 Heading C2C The carbonylation of an alcohol or derivative thereof (i.e. an ester, symmetrical ether or alkyl halide) containing 1-20 C atoms per molecule in the alcohol moiety to produce a carboxylic acid having one more C atom per molecule than that in the alcohol moiety of the starting material, is effected using CO at 50-300 C. in the presence of a cationic complex of univalent or trivalent rhodium or iridium as catalyst and wherein the anionic moiety in the catalyst is a radical selected from phosphates, sulphates, perchlorates, borates, iodates and bromates; the complex must also contain a stabilizing ligand containing one or more atoms capable of donating electrons, i.e. acetonitrile, benzonitrile, nbutyl isocyanate benzene, toluene, hexamethyl benzene, an aryl phosphite or an aryl phosphine. Examples describe the preparation of acetic acid.