baber/WOPTO huggingface dataset:
Patent GB-1226423-A (GB)
IPC: B02C2/00
Filed: 1968-05-22
Abstract: 1,226,423. Gyratory crushers. SOC. GENERALE DE CONSTRUCTIONS ELECTRIQUES ET MECANIQUES ALSTHOM. 22 May, 1968 [22 May, 1967], No. 24450/68. Heading B2A. A concave 5 is secured to a concave carrier 4 when bolts 12 are tightened by a wedging action between a conical rim 7 on the concave and a conical surface of a split ring 8, which is seated in flanges 10, 11 of a frame 3 and the concave carrier. The ring 8 tends to open forming a play-free coupling between the frame and the concave carrier. An intermediate piece 6 may be provided between the concave and its carrier. The ring may have a second conical surface 1 permitting it to be reversed.
Patent GB-1226544-A (GB)
IPC: B01J19/10
Filed: 1967-05-11
Abstract: 1,226,544. Gas/solid contact apparatus. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 7 May, 1968 [11 May, 1967], No.22041/67. Heading BIF. [Also in Division F4] A vessel suitable for use in drying or sintering has solids inlet and outlet means located for flow of solids from inlet to outlet and gas inlet and outlet means located for upward gas flow through the vessel, means for vibrating the vessel in a vertical direction, flow rate control means for controlling the rate of flow of solids through the vessel, which flow rate control means is operative to control the amplitude of vibration imparted to the vessel. In Fig. 1, fluidising gas from 9 passes through porous plate 6 and leaves through 12. Solid enters through 14 and leaves through 11. Countercurrent sweep gas enters at 10. The apparatus is vertically vibrated to control the rate of flow of solids through the reactor, and may be heated by induction.
Patent GB-1228044-A (GB)
IPC: F16B21/16
Filed: 1968-11-04
Abstract: 1,228,044. Barrel locks. WEST ALLOY DIECASTINGS Ltd. 3 Nov., 1969 [4 Nov., 1968], No 52146/68. Heading E2A. [Also in Division F2] A lock barrel 1 is held against axial displacement in a housing 2 by a radial plate 3 inserted through a slot 4 in the housing and engaging a circumferential groove 4 in member 1, the plate being held in place by bent down edges 6 of the housing. A recess (7) in the housing gives access to a hole 8 in the plate for insertion of a tool for extracting the plate against the bent down portion 6. The plate 3 may be T-shaped as shown, or U- shaped, Figs. 3 and 4 (not shown), with the ends of the limbs engaging groove 5.
Patent GB-1228468-A (GB)
IPC: G01C17/00
Filed: 1968-07-11
Abstract: 1,228,468. Compasses. PATRICK HARRISON & CO. Ltd. July 11, 1968, No.33222/68. Heading G1F. A magnetic compass for aircraft comprises a housing 30 containing a magnet 28, the housing being mounted on bearings 50 in a ring 48 to allow the magnet pivoted movement in dip, the ring 48 being in turn mounted on bearings 54 in a ring 52 for movement in azimuth, and carrying a compass card 56, a ring 60 with bearings 62 for mounting the ring 52, and bearings 64 by means of which it is mounted in a ring 20 carried by a casing 10 for the compass, small weights 58, 59 attached to the rings 48, 52 sewing to maintain the azimuth axis of the ring 48 vertical, and a dip weight 44 on the housing 30 provided to reduce the dip angle of the magnet 28 from its true value so as to preclude the possibility of the magnet 28 turning over about its dip axis during tight turns of the aircraft thus causing a 180 degree error in the reading of the compass the casing 10 being filled with a damping fluid for the compass. The housing 30 comprises two generally hemispherical end members sandwiching a control disc-like member having above parallel to its plane into which the magnet 28 is fitted. The dip weight 44 is also carried in a base in the disc member. A balancing ring is provided around the housing 30 and adjustable along the direction of the dip axis to allow the housing to be balanced about its rotational axis. The housing 30 and the rings supporting it are preferably of plastics material and have a specific gravity which is equal to that of the damping liquid in the casing 10. This casing has a transparent cover 12 which clamps the ring 20 in place and a bellows 22 allows for thermal expansion of the damping liquid. The weights 58, 59 are also adjustable to allow the rings 48, 52, to be balanced, and these weights are as small as is compatible with providing the necessary force to keep the azimuth axis of the ring 48 vertical, whilst being affected as little as possible by aircraft turns. The dip weight 44 reduces the named dip cycle of the magnet 28 so that during turns the condition in which the magnetic axis is vertical will not be reached thus preventing the compass from possibly giving false readings after such manoeuvers,
Patent GB-1230367-A (GB)
IPC: A01D41/12
Filed: 1969-10-15
Abstract: 1,230,367. Seat arrangements; adjustable steering columns. DEERE & CO. 15 Oct., 1969 [15 Oct., 1968], No. 50719/69. Headings B7H and B7J. [Also in Division A1] A combine harvester comprises a grain tank 32, operator station 12 disposed forwardly thereof, engine enclosure 14, and a transverse engine transmission in enclosure 42, on the top panel 50 of which a seat 60 is mounted via a parallel linkage mounting 62. Seat 60 can be swung upwardly and backwardly from the direction of harvester travel on mounting 62 to lie substantially above the centre of panel 50, and is slidably adjustable on ramp 64. Panel 50 swings back about hinge 58 to expose the transmission and causes seat 60 to enter grain tank 32 through its open top 34. Steering wheel 72 is mounted on column 70 which is swingable in an arc about transverse pivot 74 and is selectively positioned by a latching mechanism operated by pedal 76. Handrail structure 78 is attached to column 70 by clamp 82, extends across the width of station 12, and is pivotably connected to the floor. As shown in Fig. 1 the station 12 is positioned for a seated operator, if the seat 60 is raised and the column 70 moved forward it is positioned for a standing operator.
Patent GB-1230514-A (GB)
IPC: A23K1/175
Filed: 1969-09-30
Abstract: 1,230,514. Animal feeds. RALSTON PURINA CO. 30 Sept., 1969 [30 Sept., 1968; 14 May, 1969], No. 48033/69. Heading A2B. An animal feed comprises particles of an animal food having a flavour enhancing acid concentrated on or near the surface of the particles. Suitable acids include phosphoric, citric, and hexamic acid, which are preferred, and also sulphuric, hydrochloric, tartaric, fumaric, lactic and acetic acid. The particles may be coated with fat, such as lard or tallow, and the acid may be under, incorporated in, or on the surface of the fat coating.
Patent GB-1233038-A (GB)
IPC: F28F1/12
Filed: 1968-11-28
Abstract: 1,233,038. Heat exchange elements. NIPPON SHINPU K.K. 28 Nov., 1968 [3 April, 1968; 20 July, 1968], No. 56515/68. Heading F4S. A heat transfer element 1 comprises a thin base sheet 2 of e.g. aluminium or copper having a large number of spaced bristle members 3 made of rigid wire material extending outwardly from one surface thereof. As shown the bristle members 3 are bent in the form of U- shaped structures which are passed through holes 4 in the base sheet 2. The bristle members 3 are held in place relative to the base sheet by means of a film 5 of material such as synthetic resin. Alternatively the base parts 3c are held in place by applying a layer of quick drying adhesive. The outwardly extending ends 3a may be bent into various configurations as required (see Figs. 3A, 3B, not shown). In use the heat transfer element 1 in the form of a strip may be wrapped and fixed e.g. by bonding around the outer surface of a tube 7 of circular or flattened cross-section. The heat transfer element 1 may also be applied to the inner surface of a tube. The bristle members 3 are protected by one or more films (6, Figs. 4, 5, not shown) of material such as synthetic resin or paper, the films being peeled off after the heat transfer element has been fixed in position.
Patent GB-1238321-A (GB)
IPC: C10G45/32
Filed: 1968-07-18
Abstract: 1,238,321. Hydrogenating oils. BETHLEHEM STEEL CORP. 18 July, 1968 [19 July, 1967], No. 34331/68. Heading C5E. A process for treating a liquid aromatic hydrocarbon feed comprising mainly mononuclear aromatic hydrocarbons and polymerizable impurities and for removing the impurities in a single step comprises passing said unpreheated and non-hydrogenated feed stock in a vaporizing-reaction zone containing a hydrogenation catalyst, passing into said zone a hydrogen-containing stream at a temperature between 250 and 700 C., whereby said feed stock is completely vaporized and said impurities immediately react at a temperature between 180 and 400 C. and are converted into non-polymerizable products in the same zone and removing the effluent gas from said vaporizing reaction zone. The effluent may be transferred in the vapour state to a hydro-upgrading zone. A preferred feedstock is a crude light oil from carbonization of coal. Catalysts used may include nickel molybdate, cobalt molybdate, nickel tungstate, oxides or sulphides of nickel, tungsten or molybdenum, barium oxide promoted copper chromite or platinum, supported on alumina. The further hydro-upgrading may comprise hydrodesulphurization, hydrodenitrogenation, hydrocracking, hydrofining or hydrodealkylation.
Patent GB-1252419-A (GB)
IPC: H02M7/757
Filed: 1967-12-13
Abstract: 1,252,419. Static converter control systems. ENGLISH ELECTRIC CO. Ltd. 13 Dec., 1968 [13 Dec., 1967], No. 56683/67. Heading H2F. A control circuit for a converter comprising two (or more) bridge rectifier networks (Fig. 2, not shown) in series (or in parallel) sequentially controls the bridges so that both are rectifying or both inverting, or one rectifying and the other inverting, whereby the reactive KVA demand in the converter may be substantially reduced and wherein a minimal reactive current may flow at zero output volts with one bridge fully rectifying and the other fully inverting, compared with a single bridge for rectification and inversion. To ensure a smooth transition during a change in the overall control from one to the other bridge when one is fully rectifying and the other fully inverting, in the region of zero output from the converter, a linear relationship is established by the control circuit, between its input signal and the output voltage of the converter. Control circuit (Fig. 3).-Operational amplifiers A1, A2, which together have a parallelogram transfer characteristic, are fed with a common input signal voltage V and their outputs VB<SP>1</SP> and VB<SP>11</SP>, after inversion by unity gain amplifiers A3, A4, are applied to respective firing circuits VB<SP>1</SP>, VB<SP>11</SP> of the converter bridges. The upper limit on the output of amplifier A1 is constrained by a diode D 1 to a positive voltage level VL corresponding to the peak value of the timing sine waves of the respective firing circuit. Diodes D2, D3 are biased by a lower voltage V<SP>1</SP> pre-set by RH1, to limit the outputs from Al, A2 and thereby the firing angles a during inversion. As shown, Fig. 4, the upper limit +V L  is thus depressed by an amount V<SP>1</SP> so that the inversion limit is indicated by the full horizontal line. It is stated that this would cause " kinking " of the composite characteristic and in order to correct this the VB<SP>1</SP> characteristic is laterally shifted by an amount v so that the resultant composite converter characteristic (chain dotted) will be linear throughout the range and passes through the origin. The lateral shift is effected by applying the voltage V<SP>1</SP> via ¢ gain amplifiers A5, A6 to modify the bias voltage -vb on amplifier A1. Thus by adjustment of the control voltage V, the converter output is caused to vary linearly from rectification to inversion. With V at a negative limit both bridges operate at full rectification (α=0 degrees ) and with V at its positive limit both operate at full inversion (α=165 degrees).
Patent GB-1252900-A (GB)
IPC: B68C1/00
Filed: 1968-12-17
Abstract: 1,252,900. Saddle racks. D. LYCETT &  SONS Ltd. Oct. 17, 1969 [Dec.17, 1968], No.60050/68. Heading A4B. A saddle rack a mounting portion 11 for securing to a wall, a saddle supporting portion formed from rod like members bent to conform to the undersurface of a saddle, the saddle supporting portion being centilevered from the mounting portion, and a strut 22 removably fitted and extending obliquely between the supporting and mounting portions. The arrangement is such that with the strut 22 removed racks may be stacked for transport. The lower end of the strut 22 is hooked, as at 23, and carries a boss 26 which is received in a socket 27 in the mounting portion 11. The upper end of the strut 22 is forked, as at 24, to engage the supporting portion of the junction of two of its members 18, 19.
Patent GB-1265837-A (GB)
IPC: C07C69/18
Filed: 1969-10-17
Abstract: 1,265,837. Oxidation catalysts. B.P. CHEMICALS Ltd. 10 Sept., 1970 [17 Oct., 1969], No. 51095/69. Heading B1E. [Also in Division C2]  Catalyst compositions comprising a cobalt compound and an acetate salt supported on a carrier of low surface area are used in the oxidation of allyl acetate to glycerol di and/or triacetate. The cobalt compound may be cobaltous acetate or cobaltous bromide and in the latter case acetate salts are supplied as alkali metal acetate e.g. potassium acetate. Chromic oxide may optionally be present and suitable supports are heat treated alumina or diatomaceous earth.
Patent GB-1266342-A (GB)
IPC: G01N29/07
Filed: 1968-03-07
Abstract: 1,266,342. Ultrasonic inspection devices. BRITISH RAILWAYS BOARD. 5 June, 1969 [7 March, 1968], No. 11292/68. Heading H4D. In a pulse-echo ultrasonic flaw-detecting system using three transducers positioned rectilinearly a predetermined distance apart, at least one transducer has its beam axis at an acute angle to the line on which the transducers lie, a pair of transducers act as transmitters and one acts as a receiver or vice versa, and electronic or mechanical means enable two output signals derived from the use of said pair of transducers as transmitters or receivers and resulting from ultrasonic energy being transmitted into a test piece and reflected from a flaw therein to be made coincident on a common time-base.  In the Fig. 1 embodiment, e.g. for testing railway track, clock pulse generator 1 periodically triggers pulsers 2, 3 for energizing probes B, C as transmitters. Probe A receives echoes of the two pulses reflected from flaw 10. The echoes are displayed as blips 8, 9 on a cathoderay tube. With the probes stationary, calibrated delay 4 is adjusted to delay the energization of probe B such that blips 8 and 9 coincide. The flaw position can then be deduced by triangulation. The roles of the probes as transmitters or receivers can be interchanged, with the delay 4 being inserted between a receiving probe and the cathode-ray tube. In the Fig. 2 system probes A, B, C are mechanically linked for movement together over the surface of rail 7, probe A being a transmitter and angle probes B, C being receivers. When path lengths a and b are equal the two echo blips will coincide and add in amplitude, and the flaw position can again be found by triangulation. An additional pair of angle probes may be added to the Fig. 1 or Fig. 2 system for inspecting regions at different depths in the rail, or one of the transducers in probes B and C may be combined with the transducer in probe A in a transmit/ receive probe.
Patent GB-1266864-A (GB)
IPC: C08G69/36
Filed: 1968-05-29
Abstract: 1,266,864. Copolyamides. BP CHEMICALS (U.K.) Ltd. 13 May, 1969 [29 May, 1968], No. 25612/68. Heading C3R. A polyamide has units derived from (a) iso- or iso- and tere-phthalic acids, (b) hexamethylene and isopherone diamines and (c) 6-aminohexanoic acid, (c) providing up to 50 mol. per cent of the total units and isopherone diamine providing 5 to 50 mol. per cent of the total diamine components. Up to 20 mol. per cent of other units may be present, e.g. those derived from adipic, trimethyl adipic, sebacic or dodecanedioic acid; dodecamethylene, 2,2,4- or 2,4,4-trimethyl hexamethylene, or m- or pxylylene diamine; 12-aminododecanoic acid, or laurolactam. Monobasic acids or amines may be present as molecular weight regulators and ammonium or a tri-hydrocarbyl phosphite as a colour stabilizer. Various processes for making the polymer are described including continuous and 2-stage processes wherein (a), (b) and (c) are all precondensed in the presence of 20 to 150% water or wherein (a) or (b) is precondensed with (c) and the product condensed with the remaining reactant. In examples, polymers of inherent viscosity 0.952 to 1.639 and softening- point 127.6 to 165‹ C. are obtained. The products are transparent and amorphous and suitable for extrusion; compression, injection or blow moulding; vacuum, cold or soft forming; coatings; rigid foams; and extruded or cold drawn monofilaments or fibres. Reference is made to Specification 1,228,761. Reference has been directed by the Comptroller to Specifications 976,007, 977,868, 1,096,908 and 1,100,972.
Patent GB-1290035-A (GB)
IPC: E04H12/18
Filed: 1970-11-24
Abstract: 1290035 Erecting masts B KLOSTERMARK 24 Nov 1970 [27 Nov 1969] 55880/70 Heading B8B A device for stabilizing during erection, the top section 3 of a telescopic mast having three sections 1, 2, 3 comprises three wires 12 extending from a common fixed point 5 on the bottom mast section 1, looped around a pulley 14 subjected to the force of a weight 13 on a spring, over pulley 15 and 16 on the bottom and intermediate mast section, and then extending separately to separate pulleys 17 at the top of the mast, from which the wires 12 extend down to equi-angularly spaced anchor pins 18 in the ground. The weight 13 hangs freely during raising and lowering to tension the wires 12, and is secured by a wire 19 to a cleat 20 on the bottom section 1 when the mast is fully extended or when the mast is to stay in partially extended position. The telescopic movement of the mast is effected by winding on to a drum 4<SP>1</SP>, a cable 4 passing over a pulley 8 on the bottom section 1, under pulleys 6, 7 on the intermediate section 2 and fixed to the point 5, whereby the section 2 is raised. Wires 9 extending from ground anchors 11, over pulleys 10 at the top of the intermediate section 2, and fixed to the base of the top section 3, raise the latter as the intermediate section 2 is raised.
Patent GB-1290839-A (GB)
IPC: G06F7/52
Filed: 1970-05-05
Abstract: 1290839 Weighing scale and price calculator OMRON TATEISI ELECTRONICS CO 5 May 1970 [15 May 1969 (2)] 21501/70 Heading G4A The invention relates to a calculating system for an automatic weighing scale, the system being capable of calculating a price before the scale reaches a rest position. A pulse generator 1 feeds a binary counter 2 having outputs C1 to C4 feeding inverters N and diodes feeding lines J1<SP>1</SP> to J9<SP>1</SP> which are coupled via switches RS 1  to RS 3  and diodes to lines Lk, Ll, Lm to which pulses from generator 1 are coupled so that the number of pulses appearing on lines Lk-Lm depends on the line J1<SP>1</SP> to J9<SP>1</SP> to which the switch is coupled, from one pulse for J1<SP>1</SP> to 9 pulses for J9<SP>1</SP>. The counter 2 feeds a counter 5 via a differentiator 4, the counter 5 being arranged via a diode matrix to successively enable lines h, i, j each for two periods of counter 2 to pass on lines m, l k respectively two sets of the pulses Lk to Lm. Counter 9 fed by counter 5 via a differentiator 8 is coupled to a diode matrix causing successive enabling of lines t0 to t9 feeding matrices G1, G2, G3 connected to binary to decimal converters M1, M2, M3 receiving binary signals from the weighing machine. The converters supply a signal on one line to the columns of each matrix and when corresponding row t0 to t9 is enabled signals are supplied on lines W1, W2, W3. A counter 13, fed by a differentiator from counter 9 produces a reset signal S10, produces signals n, o, p successively enabling signals W1, W2, W3 respectively and feeding a diode matrix coupling signals k, l, m to counters 32 to 36. Signals W1 to W3 set a flip-flop 15 preventing n, o, p signals from reaching the matrix 18. In operation a carry signal S3 sets flip-flop 15 and signal n is produced, AND gate 17 is enabled and the series of pulses representing the digits set by switch RS1 to RS3 and representing price per unit weight are passed via matrix 18 to counters 32, 33, 34. For each signal t0 to t9 two sets of the pulses representing the values are divided by flip-flop B1 so that each digit is counted. When the W1 signal is produced flip-flop 15 is set preventing any further pulses being counted and the counters contain the price times the least significant digit of the weight. The same procedure occurs for the other weight digits. A signal Q from the counter causes the value obtained to be retained until counter 13 is reset and signals S10 and S4 are produced. The even numbered lines from decoder M1 carry a train of 0's and 1's which vary at a rate depending on the amplitude swing of the weighing scales. When the time between consecutive ones is greater than a predetermined time a signal g=0 is produced which prevents flip-flop 21 from being reset and prevents further calculation.
Patent GB-1295157-A (GB)
IPC: G02B5/08
Filed: 1970-09-21
Abstract: 1295157 Rear-view mirrors INITIAL PLASTICS Ltd 22 July 1971 [21 Sept 1970] 44909/70 Heading B7J [Also in Division G2] A rear-view mirror comprises a sheet of metal, or metallized plastics, foil 9, and a support plate 2 with a surrounding raised rim 4 integrally moulded from thermoplastics material, the foil being held under tension and attached by bonding or adhesive 6 to the rim to form a sealed chamber between the foil and the plate. The foil is preferably held in convex form by a superatmospheric pressure within the chamber.
Patent GB-1302294-A (GB)
IPC: G03F1/92
Filed: 1970-01-30
Abstract: 1302294 Photo-sensitive materials and transfer processes KODAK Ltd 1 Jan 1971 [30 Jan 1970] 4492/70 Heading G2C A transfer process using a photo-sensitive material comprising a transparent support carrying a first transparent layer of a resin whose softening point is raised on exposure to visible or ultra-violet light and a second layer of the resin containing a dye or pigment opaque to the exposing light, consists of pressing an inked image on to the second layer exposing to ultraviolet, and pressing the second layer into contact with a recepter sheet whilst heating to transfer the unexposed and inked areas of this layer to produce a positive image on the recepter sheet and leave a negative image on the support. Either image may be used as a master to expose presensitised lithographic plates. Preferred resins are those disclosed in Specifications 1214462 and 1197182 and the specified dye is Graphtol Blue.
Patent GB-1304345-A (GB)
IPC: C22B1/08
Filed: 1969-02-06
Abstract: 1304345 Ore extraction H B BAETZ 5 Feb 1970 [6 Feb 1969] 6494/69 Headings C1A and C1N A method for extracting metals in the form of anhydrous chlorides, particularly for the preparation of FeCl 3  and TiCl 4  from the waste "red mud" from bauxite treatment, comprises a step in which the starting material is treated, possibly in a fluidized bed, with a gaseous mixture of SO 2  and Cl 2  above the vaporization temperature of the chloride(s) produced and the chloride(s) are isolated from the gaseous products, SO 2  and Cl 2  being recycled. The yield may be improved by re-chlorinating the residue with a mixture of sulphur and Cl 2  as described in 1,180,912. The preferred temperature for both steps is 350-450 C., at which Al and Si are not extracted. The FeCl 3  and TiCl 4  may be burned to form the metal oxides and regenerate chlorine; SO 2  may be recovered by roasting the solid residue and recycled, sufficient sulphur being used in the second step to compensate for any loss of SO 2 . Alternatively Al 2 (SO 4 ) 3  may be extracted from the residue with water.