baber/WOPTO huggingface dataset:
Patent GB-1204868-A (GB)
Title: Electro-magnetic reed relay having low noise characteristics
IPC: H01H51/06
Filed: 1967-12-08
Abstract: 1,204,868. Electromagnetic relays. THERMOSEN Inc. 8 Dec., 1967 [8 Dec., 1966], No. 56045/67. Heading H1N. To prevent noise in a reed relay the movable reed contact 60 extends parallel to core 36, is made of non-magnetic material, and carries a U-shaped armature 76 one limb 79 of which extends into the air gap between a magnetic pole piece 38 and one end of an arcuate magnetic shield plate 28. A magnetic washer on the right hand end of core 36 engages the magnetic plate 28. The arcuate magnetic plate 28 is located on ledges formed in housing side walls and a saddle formed in the housing base and supports the core and winding assembly 32, 36 which is itself located by means of the engagement in slots in the side walls of ears of a member 39 interposed on the core between the pole piece 38 and winding 32. Two changeover contact sets, e.g. 60, 66, 72 are mounted in a compartment of the housing sealed by pouring epoxy resin over a cover member 82, along the edges of the magnetic plate 28 and over the exterior of the base of the housing. The compartment may be exhausted or filled with inert gas through a tube 90. An earth pin 52 is secured to magnetic plate 28. The contacts are made of a gold diffused, silver magnesium nickel, alloy. The planes of the moving reeds are inclined to the sides of the housing. A threesided snap on cover 14 completes the relay housing.
Patent GB-1408589-A (GB)
Title: Process for improving stability of lubricating oils
IPC: C10G49/04
Filed: 1972-12-05
Abstract: 1408589 Lubricating oils GULF RESEARCH & DEVELOPMENT CO 5 Dec 1972 [14 Dec 1971 27 Sept 1972] 56092/72 Heading C5E Lubricating oils are produced by a two stage process in which a lubricating oil fraction is catalytically hydrotreated at 316-482‹ C. and a hydrogen partial pressure of 140-700 kg./cm.<SP>2</SP> and then hydrogenated over a catalyst comprising a Group VI and a Group VIII metal, oxide or sulphide at up to 399‹ C., a hydrogen partial pressure of 140-350 kg./cm.<SP>2</SP>, a LHSV of 0À1 to 10, a hydrogen feed rate of 53À4- 178 SCM per 100 litres of the hydrotreated oil, and a hydrogen consumption of 0À089-0À445 SCM per 100 litres of the hydrotreated oil for each 1 % by volume reduction in aromatic content of the hydrotreated oil; the hydrogenation being carried out to effect at least a 60% reduction in aromatics content and to maintain a yield of at least 90% by volume boiling in the same range as the hydrotreated oil. The lubricating oil fraction treated is one which has not been subjected to a solvent extraction or dewaxing process and can be a heavy distillate fraction, a deasphalted residual fraction or a blend of these. The hydrotreating catalyst can be a sulphided nickel and tungsten catalyst containing fluorine and supported on alumina and the hydrogenation catalyst can be a sulphided nickel and tungsten catalyst supported on alumina. The hydrotreated oil can be solvent dewaxed and fractionated prior to the hydrogenation.
Patent GB-1207314-A (GB)
Title: Improvements in or relating to colour filtration
Inventor: DEUTSCH DAVID LEONARD
IPC: G02B5/22
Filed: 1966-12-15
Abstract: 1,207,314. Optical filters. D.L. DEUTSCH, C.S. DONNER and N. ROEG. Dec.8, 1967 [Dec.15, 1966], No.56230/66. Heading G2J. The windows of a hall are formed as filters to render daylight passing therethrough compatible with interior lighting used in colour photography by spraying therein a liquid from an aerosol container. A carrier liquid such as a varnish or plastics material may be mixed with a propellant and a dye suitable to change daylight to a colour temperatures of 3, 200 Kelvin.
Patent GB-1281396-A (GB)
Title: Improvements in or relating to door assemblies
Inventor: PENDLEBURY LEONARD MALCOLM
IPC: E06B1/56
Filed: 1969-11-18
Abstract: 1281396 Sliding door assemblies ENDON SHEET METAL Ltd 19 April 1971 [18 Nov 1969] 56279/69 Heading E1J In a sliding door assembly in which the sliding door 1 is mounted in a frame 2 consisting of a housing or casing and a door opening closed by the door in its closing position in the casing, there is provided adjustable spacer means, (15, 16, 17, 18) at the top of the frame for firmly locating the assembly in position. As shown, the spacer means comprises one or more screw threaded rods 15 each engaged in a tapped plate 18 attached to the top girder 3 of the frame, and rotatable by a welded-on nut 16, to bring a horizontal plate 17 carried on the end of the rod 15 into contact with the top of the door aperture in a wall or with the ceiling or a girder mounted thereon. The top and bottom frame members 3 and 7 are preferably formed from H-section girders, the end of the casing adjacent the door being formed by two spaced channel members 6 with a removable metal strengthener 8 between the girders 3 and 7 at each side of the casing. A guide and rack (not shown), is provided fixed to plates 19 secured to girder 3 and a guide 9 in the bottom of the casing. In the closed position the door engages in a recess in the door jamb. A removable or hinged chip board panel 10 is attached to each side of the frame and has a cutout 12 to receive handles attached to the door. A buffer 14 limits the opening movement of the door. The outside door jamb may be pivoted about a horizontal axis to compensate for alignment out of vertical.
Patent GB-1130100-A (GB)
Title: A seed drill
IPC: A01C7/20
Filed: 1966-12-19
Abstract: 1,130,100. Seed sowing machines. AMAZONEN WERKE H. DREYER. 19 Dec., 1966 [3 March, 1966], No. 56673/66. Heading A1D. A seed tube for a seed sowing machine is formed of sections 4, 5, 6, 7 which are telescopically slidable into one another and inlet and outlet sockets 2, 3 are rotatably attached to the sections 4 and 7 respectively and are formed at an angle to the sections of the seed tube. The socket 3 is arranged to be clamped to a share and the socket 2 is attached to the seed hopper.
Patent GB-1454994-A (GB)
Title: Liquid container
IPC: G05D9/02
Filed: 1972-12-11
Abstract: 1454994 Liquid level control KODAK Ltd 10 Dec 1973 [11 Dec 1972] 57080/72 Heading G1H [Also in Division G2] In a processing apparatus, such as for use in a machine in which a quantity of solution lost during the carrying out of the process, is replaced, the main volume of liquid is contained in a processing tank 8, closed by a lid 31, and the arrangement is such that a vent tube 7, having its upper end in an air space above liquid 2 in a closed container 1, has its lower end 19 normally immersed in the liquid 9 in the tank 8 so that when the lower end 19 of the tube 7 is uncovered the liquid 2, from tank 1, passes through a tube 3 to a tank 4 and the liquid on reaching a level 12 is syphoned by a pipe 6 into the tank 8 until the end 19 of the tube 7 is again  covered to stop the action. In a further embodiment, Fig. 3, a heater coil 46" and a thermistor 45", in circuit with a valve, opens the valve when the coil is uncovered to allow liquid to enter the tank 8" until the heater and coil 46"is again covered to stop the action.
Patent GB-1117550-A (GB)
Title: Pressure relief valve
IPC: F16K17/04
Filed: 1966-12-29
Abstract: 1,117,550. Fluid pressure control valves etc. GEWERKSCHAFT EISENHUTTE WESTFALIA. 29 Dec., 1966 [20 Jan., 1966], No. 58145/66. Heading F2V. In a fluid pressure relief valve, a thrust body 11 is mounted on a hemispherical head portion 10 of a piston 4, a spring 13 tending to maintain head 10 in contact with a screw cap 3. The piston, mounted within a bore 31 which carries a sealing ring 5 and is conically widened as at 18, has an axial passage 6 one end of which is flush with the outermost end of the piston, and the other end terminates in a plurality of radial passages 7 which have divergent ends 8 and lead to the external periphery of the piston. Fluid pressure applied to the piston in the direction of arrow A raises the piston so that pressure is relieved via passages 6 and 7, the inner space of sleeve 1 and an outlet 9, the relief of pressure being gradual due to the conical enlargements 8 and 18. The spring loading applied to the piston may be varied by member 2. The valve may be modified to include an indicator, this being done by fixing the guide member 19 to the thrust body 11 and allowing it to extend freely through the cap 2.
Patent GB-581916-A (GB)
Abstract: 581,916. Ignition systems. BRITISH THOMSON-HOUSTON CO., Ltd. March 8, 1944, No. 4337. Convention date, March 12, 1943. [Class 7 (iv)] An ignition system comprises a distribution circuit containing a spark plug 18, a capacitance 15 and an inductance formed by a transformer comprising a primary winding 16 and secondary winding 17 connected across the plug terminals, and a distributor which inductively connects a source 10 of high frequency current to the distribution circuit and includes means for varying the inductance of the distribution circuit for periodically providing a resonant circuit with the spark plug to produce a spark thereat. The distributor has transformers equal in number to the number of spark plugs each transformer having a primary winding 12 and secondary winding 1'4 connected to its respective distribution circuit. The primaries may be connected either is series, as shown, or in parallel. The distributor has a rotating arm 19 formed of magnetic material which periodically closes the magnetic circuit of each distributor transformer and subsequently inserts a magnetic shunt formed by a leg 20 on the transformer core.
Patent GB-1129720-A (GB)
Title: The profiling of workpieces by rolling
IPC: B21H1/12
Filed: 1966-12-29
Abstract: 1,129,720. Rolling. ROTARY PROFILES (JERSEY) Ltd. 29 Dec., 1966 [3 Jan., 1966], No. 58196/66. Heading B3M. An annular or cylindrical workpiece 30 is profiled by means of rollers 14 spaced round the workpiece, the rollers being urged radially towards the workpiece in response to relative axial movement between the rollers and a frustoconical wedge-member. Where the workpiece is profiled on its inner surface, Fig. 2, the wedge member 34 causes the rollers 14 to squeeze the workpiece 30 against a rigid cup 10 which rotates relative to the member 34. A pair of oppositely movable members 34 may be provided in order to cancel out axial forces on the rollers. For external profiling, Fig. 1, the cup 10 is moved axially to force the rollers towards the workpiece supported on a plug 16. The plug, or in the case of internal profiling, the cup, may be provided with gear teeth, for example, in order to simultaneously profile the inner and outer surfaces of a workpiece. The rollers are conveniently held in a cage which prevents them moving other than radially.
Patent GB-1170940-A (GB)
Title: Contact Heat Exchange Units for Cooling Towers.
Inventor: RICHTER STEFFEN
IPC: F28F25/08
Filed: 1966-12-30
Abstract: 1,170,940. Cooling towers. INDUSTRIEPROJEKTIERUNG LEIPZIG VEB. 30 Dec., 1966, No. 58465/66. Heading F4K. In a cooling tower, the support structure for each layer of trickle plates 4 comprises uprights 1, main bearers 2, girders 3 fixed to the uprights and one or more intermediate girders 3a fixed to the main bearers. The opposite faces of each plate 4 are provided with spacers 5. Each section of plates 4 may be prefabricated.
Patent GB-1394709-A (GB)
Title: Pulping apparatus
Filed: 1972-12-19
Abstract: 1394709 Waste disposal apparatus HOBART MFG CO 19 Dec 1972 58644/72 Heading B2A Waste disposal apparatus comprises a pulping tank 10 Fig. 1 carrying at the bottom a perforate sizing ring 13, an impeller plate 20 at the bottom of the tank having cutting elemepts 40 which may be removable and replaceable in its upper surface which is arranged lower than the sizing ring. The sizing ring carries downwardly extending cutters and the impeller plate also carries cooperating cutters which together form a cutting zone. The impeller plate also carries blocks 41 bearing teeth 40 which cooperate with plates 42 carried by the bottom wall 12 of the tank to effect a scissors-cut. Discharge is facilitated by pump vanes 44 under the impeller plate. A band 54 is secured to the bottom wall 12 of the tank to alter the shape of the vortex and prevent passage of material across the centre of the impeller plate. In a second embodiment cutters 100 Fig. 5 are brazed to screws 96 which are screwed into tapped holes of an impeller plate portion 91. The impeller plate may comprise a base plate portion 30 secured to a supporting plate 31, and sector shaped plates 33 secured to the portion 30.
Patent GB-1188219-A (GB)
Title: Phenol-Formaldehyde Resin Solutions
Inventor: HOVD S
IPC: C08J3/02
Filed: 1968-12-11
Abstract: 1,188,219. Fire proof laminate. NORSK SPRAENGSTOFINDUSTRI A/S. 11 Dec., 1968 [13 Dec., 1967], No. 58911/68. Heading B5N. [Also in Division C3] Kraft paper is rendered fireproof by impregnating with a solution of phenol-formaldehyde resin in an aqueous solution of a C 1-4  alkanol of at least 37À5% concentration including 1-10% of an alkyl phosphate and 2-10% of ammonium bromide. In the example formaldehyde and phenol are dissolved in aqueous ethanol, a mixture of ammonium bromide and aqueous ammonium methyl phosphate is added and the final composition is used to impregnate kraft paper which is laminated.
Patent GB-1368777-A (GB)
Title: Production of amino-acid precursors
IPC: C07C233/45
Filed: 1971-12-21
Abstract: 1368777 Isocyanocarboxylic acid esters; N- formyl amino acids; metallized esters BADISCHE ANILIN- & SODA-FABRIK AG 21 Dec 1971 [23 Dec 1970] 59285/71 Headings C2C and C2J Isocyanocarboxylic acid esters, some of which are novel, of the Formula II or III wherein R<SP>1</SP> is a hydrogen atom or an organic radical attached via a carbon atom; R<SP>2</SP> is an alkyl, cycloalkyl or substituted alkyl radical; R<SP>3</SP> is an unsubstituted or substituted alkyl radical, and R<SP>4</SP> and R<SP>5</SP> are unsubstituted or substituted alkyl radicals or together they form a 2- to 6-membered chain; are obtained by reacting α-metallized isocyanocarboxylic acid esters of the Formula I wherein M is a lithium, sodium, potassium, magnesium, calcium or thallium atom, with alkylating agents, and, if desired, reacting compounds of Formula II wherein R<SP>1</SP> is a hydrogen atom, after metallization with alkylating agents to produce compounds of Formula III. The isocyanocarboxylic acid esters may be hydrolysed to the corresponding N-formylamino carboxylic acids.  The compounds of Formula I may be produced by metallization of the corresponding isocyanocarboxylic acid esters, the production of the ethyl ester of potassium isocyanoacetic acid being illustrated. The compounds of Formula I may be formed in situ and then reacted directly with the alkylating agents.
Patent GB-1300289-A (GB)
Title: Nickel recovery from nickel-magnesium fines
Inventor: PARGETER JOHN KENNETH
IPC: C21C1/10
Filed: 1970-12-16
Abstract: 1300289 Recovery of Ni from Ni-Mg fines INTERNATIONAL NICKEL LTD 16 Dec 1970 [31 Dec 1969] 59773/70 Heading C7D Ni is recovered from Ni-Mg alloy fines up to 0À65 cm. size and containing up to 50% Si by mixing and fusing the fines with iron oxide, alkali metal nitrate and a flux for MgO. A Ni-Si-Fe alloy is formed with a MgO containing slag. The Ni-Mg alloy fines preferably contain 10-25% Mg, up to 50% Si and up to 12% Fe with balance Ni. The preferred flux is Si O 2  optionally with Ca F 2  and the iron oxide is FeO, Fe 2 O 3 , or Fe 3 O 4 . Up to 50% of the iron oxide addition can be replaced or an equivalent oxygen content basis by NiO. The weight ratio of iron oxide and alkali-metal nitrate to the Mg content of the alloy should be >1 and preferably 1À25:1 for the oxide and 1À4:1 for the nitrate. The molar ratio MgO:SiO 2  + FeO in the slag preferably does not exceed 1À3:1.
Patent GB-1247896-A (GB)
Title: A method of binding, by covalent bonds, organic compounds to polymers
IPC: C12N11/06
Filed: 1968-12-19
Abstract: 1,247,896. Binding organic amines to polymers. PHARMACIA A.B. 19 Dec., 1968 [20 Dec., 1967], No. 60502/68. Headings C3A, C3H and C3U. [Also in Division C2] In a method of binding, by covalent bonds, organic compounds containing one or more primary or secondary amino groups, to polymers containing one or more hydroxyl groups and/or primary or secondary amino groups, the polymer is reacted with a compound containing one or more cyanate groups to form a reactive derivative and this derivative is reacted with the organic compound. Organic compounds that may be used are proteins, polypeptides, peptides, and amino acids and derivatives thereof such as enzymes, antibodies, protein and/or peptide hormones, antigenic proteins, allergens or haptens. Polysaccharides containing an amino group may also be used. Polymers that may be used are dextran, cellulose, starch, dextrin and agar agar, copolymers of dextran with epichlorohydrin or derivatives of these compounds such as hydroxyethyl cellulose, and 2 - hydroxy - 3 - (4 - aminophenoxy)propylsubstituted copolymers of dextran with epichlorohydrin. The polymer may also be polyaminostyrene.
Patent GB-1377954-A (GB)
Title: Fork-lift load handling trucks
IPC: B60P1/02
Filed: 1970-12-23
Abstract: 1377954 Masked lift trucks BRITISH RAILWAYS BOARD E SALMONS and K S MOORE [trading as MECHANISATION PRODUCTS] 23 March 1972 [23 Dec 1970] 61109/70 Heading B8H The fork 9 is provided with retractable wheels 7, 8 and is connected to the lifting carriage 1 by means of a lazy-tongs reach mechanism 4, an interlocking arrangement being provided whereby the lifting carriage cannot be raised if the reach mechanism is not fully retracted. As shown, arms 2 secured to the carriage 1 pivotally support the reach mechanism 4 which, at its outer end, pivotally supports brackets 31 secured to the fork assembly. The fork assembly, which is effectively in the form of a pallet truck, consists of a plate 10 secured to the brackets 31 and formed with horizontally elongated slots 13 receiving rollers 12 mounted on a plate 11 interconnecting the fork tines, whereby the fork may be adjusted laterally by a ram 21. The wheels 7, 8 are mounted on pivoted arms 14, 15 which are interconnected by links 16. An hydraulic ram 17 for raising and lowering the wheels 7, 8 is pivoted between a bracket 18 on the plate 10 and links 20 pivoted to the arms 14. On lowering the wheels 7, 8, the plate 10 is raised, lifting hooks 22, 23 clear of the carriage 1 so that the fork assembly can be moved forwardly by the reach mechanism 4, when locking bolts 26 are withdrawn from apertures in a lug on the fork assembly. Withdrawal of the bolts 26 is effected by a ram 30 and actuates an hydraulic lock on the lift truck to prevent the operation of the transmission, lift and tilt means.
Patent GB-1326560-A (GB)
Title: Signal transition-responsive circuits
IPC: H04L25/02
Filed: 1970-12-29
Abstract: 1326560 Pulse circuits TELETYPE CORP 29 Dec 1970 [29 Dec 1969] 61504/70 Heading H3T  In a signal transition responsive circuit providing a discrete output signal (51, 52, Fig. 2, not shown) in response to each alternate positive going and negative going transition in the level of an input signal 26 the circuit includes first means 28, 30, 32 for deriving from the input signal an intermediate signal in which each transition in one of the directions is delayed for a first period with respect to a corresponding transition in the input signal, second means 38, 40, 42 for deriving from the input signal an intermediate signal in which each transition in the other of the directions is delayed for a second period with respect to the corresponding transition in the input signal, and means 16 arranged to provide the output signal in response to the intermediate signals differing during the first and second periods. The input signal 26 may be the mark space signal from a telegraph line. When input 26 is positive (+V, Fig. 2, not shown ) capacitors 30, 40 charge, diodes 32, 42 are conductive, as is transistor 12, transistor 14 is off and the emitter voltage of transistor 16 is more positive than its base so that transistor 16 is off and output 24 is positive (+V). When the input 26 goes to 0 (at t 1 ) capacitor 30 discharges via diode 36, transistor 12 turns off and transistor 14 turns on so as to make the emitter of transistor 16 at ground potential. Diode 42 is reverse biased and the positive voltage stored on capacitor 40 biases transistor 16 on so as to give a 0 output at 24 indicating the input signal transistion. Capacitor 40 now discharges via 38, 44 and the transistor 16 becomes non-conducting after a delay time (#t 1 ) determined by this discharge rate so that the output at 24 again goes positive (+V). When the input signal 26 again goes positive (+V) the diode 42 is forward biased and as transistor 14 is still on the bias applied to the emitter and base of transistor 16 make transistor 16 conductive and output 24 is again 0. Capacitor 30 charges via resistor 28 until after a delay time (#t 2 ) the breakdown voltage of the diode 32 is reached when the positive voltage is applied to bias transistor 12 on and transistor 14 off so that transistor 16 is biased off and the output 24 changes to + V.
Patent GB-1340210-A (GB)
Title: Automatic apparatus for packaging powder material with uniform  bag weight and with dustfree operation
IPC: B65B1/18
Filed: 1970-12-30
Abstract: 1340210 Weighing apparatus NIPPON JIDO FUKUROZUMEKI MFG CO Ltd 30 Dec 1970 [30 Dec 1969] 61788/70 Heading G1W [Also in Division B8] In apparatus for filling bags with powder to a predetermined weight (see Division B8), a filling nozzle 64 is connected through a linkage 114-116- 118-120 to one end of a pivotal scale beam 122 the other end of which carries a rod 128 supporting a weight 126 which is insufficient to balance the filled bag and having a collar 130 adapted to engage an auxiliary weight 132 which, with the weight 126, balances the filled bag. In operation, the right hand end of the beam 122 rises as the bag is filled so that a plate 134 is raised to activate a photo detector 136 which causes a main feed to the bag to be cut off, the bag then receiving only a dribble flow. As the beam rises further, the collar 130 engages the auxiliary weight 132 and a second photo detector 140 is activated to cut off the dribble flow. Reference has been directed by the Comptroller to Specification 1228870.
Patent GB-2026613-A (GB)
Title: Heat engines
IPC: F03D9/00
Filed: 1978-07-26
Abstract: Heated gas, e.g. air, is introduced into a venturi or converging/diverging nozzle, in which the heated gas is cooled in a low pressure region, e.g. a cyclone or a loop 15, by injecting fluid, e.g. water, into the gas stream, and in which the resulting mixture passes through the divergent part of the venturi or nozzle to operate a turbine or the like. The gas may be heated in a solar heater, or be derived from a waste heat source. <IMAGE>
Patent GB-2002452-A (GB)
Title: Rupture disks
IPC: F16K17/16
Filed: 1978-08-09
Abstract: A rupture disk 16 comprising a disk of sheet material, such as metal, which may or may not have a central domed concave-convex portion 20 and may be of the normal or of the reverse rupture type, has 3 or more scores 26 providing lines of weakness formed on a surface of the disk, each score including a main portion 28 radiating from the centre of the disk, and having at its radially outer end a pair of diverging additional score portions 42 and 44. <IMAGE>
Patent GB-2004692-A (GB)
Title: Charge transfer device
IPC: H01L29/10
Filed: 1978-09-07
Abstract: A charge transfer device comprises a doped semiconductor substrate (1), an input structure (11, G1, G2) for generating a packet of electrical charge in an active region of the substrate, an electrode structure (E11 to E33) for controlling the transfer of the charge packet and a plurality of tapping outputs (C1, T1 to C3, T3) for detecting the charge packets during transfer. To facilitate tapping, the device is provided with dividing structures (41, 45) arranged along the length of the substrate (1) so that a sample portion of the charge packet may be transferred to each corresponding one of the tapping outputs (C1, T1 to C3, T3). Each dividing structure may be in the form of a channel stop, or may include an addressable electrode (not shown). <IMAGE>