baber/WOPTO huggingface dataset:
Patent GB-1137573-A (GB)
Title: Light module and combination thereof with push button operator and switch
IPC: H01H13/50
Filed: 1966-10-26
Abstract: 1,137,573. Retractive switches; indicators for switches. SQUARE D CO. 26 Oct., 1966 [8 Nov., 1965], No. 48011/66. Heading H1N. [Also in Division H2] A light module for a switch comprises front and rear ends to which an operating button 5 and a switch 3 are respectively intended to be attached, the module having a light socket 26 at its front end, and a passage 22 passing through the module and containing a pin 23a intended for engagement by the button to operate the switch. As shown, there are two pins 23a in two passages 22 and two stacks of switches 3. The module is attached to a base 2 by bolts 18 having internally-threaded heads 20 receiving switch-mounting bolts. The module may contain resistors or a transformer in circuit with the lamp.
Patent GB-1072933-A (GB)
Title: Process for preparing an active oxygen-containing aluminium oxide
IPC: C01F7/02
Filed: 1963-12-05
Abstract: Alumina which has been precipitated in the presence of boric acid is heated to 800-1000 DEG  C., cooled, and treated with aqueous H2O2. The material after heating is said to have formula 9Al2O3.ZB2O3.  In the example alumina was precipitated by treating (a) an aluminium nitrate + formic acid solution, and (b) a boric acid + ammonia solution, with CO2, then mixing (a) and (b), followed by drying and calcining.  The alumina was then covered with a 30% H2O2 solution, excess water was evaporated at 22 DEG  C. over 24 hours, and the product was dried at 35 DEG  C.
Patent GB-1057829-A (GB)
Title: Flame retardant composition and process
IPC: C09K21/06
Filed: 1964-11-26
Abstract: A flame-proofing composition for impregnating paper comprises an aqueous polyvinyl chloride or fluoride latex; antimony oxide; a resin precondensate derived from tetrakis (hydroxyorgano) phosphonium halide, urea and formaldehyde; and optionally isopropanol. The hydroxyorgano radical may be hydroxy methyl (when halide is bromide); or hydroxychloromethyl, a -hydroxypropyl, a -hydroxyallyl, a -hydroxybenzyl, a -hydroxy-p-chlorobenzyl, a -hydroxymethylcyclohexyl, a  - hydroxymethyl-4 - chlorocyclohexyl, a - hydroxypropionyl, a  - hydroxybutanyl, or a -hydroxy - 4 - chlorobutanyl (when halide is chloride). Polyvinyl chloride may be in the form of a copolymer with vinyl acetate or vinylidene chloride. The composition may also comprise citric acid (curing catalyst), polyvinyl alcohol or hydroxy methyl or ethyl cellulose (protective colloid), oxyethylated alkyl phenol (wetting agent), and a silicone or wax (water repellent).  The impregnated paper may be dried and cured in an oven at 200-400 DEG  F. for 1-10 minutes.ALSO:A flame-proofing composition for impregnating paper comprises an aqueous polyvinyl chloride or fluoride latex; antimony oxide; a resin precondensate derived from tetrakis (hydroxyorgano) phophonium halide, urea and formaldehyde; and optionally isopropanol.  The hydroxyorgano radical may be hydroxy methyl (when halide is bromide); or hydroxychloromethyl, a -hydroxypropyl, a -hydroxyallyl, a -hydroxybenzyl, a -hydroxy-p-chlorobenzyl, a -hydroxymethylcyclohexyl, a -hydroxymethyl-4-chlorocyclohexyl, a -hydroxypropionyl, a -hydroxybutanyl, or a -hydroxy-4-chlorobutanyl (when halide is chloride).  Polyvinyl chloride may be in the form of a copolymer with vinyl acetate or vinylidene chloride.  The composition may also comprise citric acid (curing catalyst), polyvinyl alcohol or hydroxy methyl or ethyl cellulose (protective colloid), oxyethylated alkyl phenol (wetting agent), and a silicone or wax (water repellent).  The impregnated paper may be dried and cured in an oven at 200-400 DEG F. for 1-10 mins.
Patent GB-1056656-A (GB)
Title: Controls for earthmoving scrapers connected in tandem
IPC: E02F9/20
Filed: 1965-11-12
Abstract: 1,056,656. Controlling vehicles. CATERPILLAR TRACTOR CO. Nov. 12. 1965 [Dec. 2, 1964], No. 48235/65. Heading B7H. The controls for two or more earth-moving machines connectible for operation in tandem, comprise independent power and braking means on each machine, auxiliary control circuits extending between the machines and controls on one machine for actuating the power and braking means selectively on the other machines, the arrangement allowing each machine to operate independently on breaking of its tandem connection. In Fig. 2, pedal 20 controls the front engine of the leading machine and pedal 21 controls the rear engine of the leading machine through air valve 22 and air ram 23 when the machine operates alone and in addition, when two machines are in tendem, controls the front engine of the second machine through air ram 24 and the rear engine through shuttle valve 25 and ram 23<SP>1</SP>. The pedals 20<SP>1</SP>, 21<SP>1</SP> control the engines of the second machine when it is alone in a similar manner to pedals 20, 21, which are operable separately or simultaneously. The brake cylinders 30, 31 and 30<SP>1</SP>, 31<SP>1</SP> (Fig. 3) of the two machines are controlled by pedals 28, and 28<SP>1</SP> through air valves 29, 29<SP>1</SP> when the machines operate separately but when they operate in tandem the rear brake cylinders 30<SP>1</SP>, 31<SP>1</SP> are actuated by pedal 33 through valve 35 on the front machine which is supplied with compressed air from the rear machine to ensure braking on one machine at least if the air supply fails on the other. Depression of pedal 28 applies all the brakes. All the air valves are of the modulating type with a spring-centred spool subject to the operator's force on one side and the outlet air pressure on the other. Fig. 4 (not shown), shows an arrangement of retarders wherein two manual controls on the leading machine operate the retarders on the front and rear machines respectively.
Patent GB-1171286-A (GB)
Title: An Extrusion Filter
IPC: B30B9/16
Filed: 1966-10-27
Abstract: 1,171,286. Extrusion press filter. USINE DE WECKER S.A.R.L. 27 Oct., 1966 [9 April, 1966], No. 48236/66. Heading BID. [Also in Divisions B3 and F2] In an extrusion press filter, comprising two oppositely threaded. contra-rotating worms 1. (2) in a common perforated metal filter tube 3 (Fig.10, not shown), axially movable cones 7 obstruct the solids discharge end 4 and are automatically adjusted to compensate for pressure variations in the outlet chamber 6, where the worm shafts 8 are not threaded. In Fig. 1, both cones 7 are moved by a common hydraulic piston-cylinder 10, 11 supplied by a pump 12. The leftward end of cylinder 11 is connected to an accumulator 16 (insert) which comprises two connected pistons 20, 22 and an air cushion 18. In use, the air cushion pressure, supplied by pump 23 and regulator 24 is set, valve 25 closed and thereafter a proportionate rightward force is maintained on cones 7, any variation in pressure in chamber 6 being largely eliminated by resultant movement of cones 7 to restore balance of forces. In Figs. 3, 4 (not shown), the whole hydraulic-pneumatic system is replaced by a pair of spring pillars, whereby a series of springs (27) urge each cone 7 rightwards, the preset pressure being varied by screwing one part of a spring casing over the other. Figs. 5 to 10 (not shown) relate to forming the filter tube 3 from circular sectioned tube by successive stretching and compressing operations. The holes in tube 3 may widen outwards, if punched in sheet material before forming into a tube, or each hole may be cylindrical or in two cylindrical parts (43, 44). As well as holes in tube 3, the non-threaded parts of shafts 8 may be perforate and hollow to drain filtrate to container 31. Diverging wall 32 around cones 7 creates an outlet of uniform or divergent cross-sectional area. The machine is used to press oil from palm fruits. The axial pitch of the threads may decrease towards the discharge end.
Patent GB-1142514-A (GB)
Title: Improvements relating to the stabilisation of electrical power supply units
Inventor: PEDDER DONALD AUSTIN GRANT
IPC: G05F1/44
Filed: 1966-10-28
Abstract: 1,142,514. Automatic control of current and voltage. INDUSTRIAL INSTRUMENTS Ltd. Oct. 24, 1967 [Oct. 28, 1966], No. 48519/66. Heading G3R. In a power supply unit, thyristors in the primary circuit of a transformer forming part of an inverter and thyristors in a phase-controlled rectifier which is connected to the secondary circuit of the transformer and from which is derived a D.C. output receive their firing pulses from a common oscillator, and a control circuit responsive to output variations provides an adjustable delay in the firing of the rectifier thyristors relative to the firing of the primary circuit thyristors so that the output is stabilized at a desired level. As shown, an A.C. input is rectified and chopped by one pair of the thyristors X1, Y1 or X2, Y2 &c. connected in the primary circuit of a transformer T1 having its secondary circuit connected over thyristors A, B to provide a D. C. output. The relative phase of firing of A, B and X, Y is determined by a control circuit which receives inputs representative of output voltage and output current and which is arranged to operate so that "constant voltage" control is superseded by "constant current" control when the output current reaches a pre-set maximum. A suitable control circuit arrangement is described with reference to Fig. 2 (not shown). A logic circuit M, Figs.3 & 4 (not shown), provides outputs to select an appropriate pair of primary thyristors X, Y in dependence upon fluctuations in the input voltage.
Patent GB-1167506-A (GB)
Title: Liquid Moderated Nuclear Reactors
Inventor: WRAY DUDLEY
IPC: G21C7/26
Filed: 1966-10-28
Abstract: 1,167,506. Controlling reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 16 Oct., 1967 [28 Oct., 1966], No. 48548/66. Heading G6C. A liquid moderated reactor has the moderator mass divided into sections and means for differentially pressurizing the free surfaces of the moderator within each of the sections so as to effect transfer of moderator between the sections, the means being proportionally responsive to differential power output of the sections. In one embodiment, a cylindrical moderator containment vessel is divided by internal walls 20 into three sections 21, 22, 23 containing heavy water moderator and interconnected for moderator flow. Each section is connected (i) to a source of the under pressure via pipework 24 and associated control valves 25, 26, 27, and (ii) to vent via pipework 28 and associated control valves 29, 30, 31. In operation, signals from neutron flux detection apparatus 32, 33, 34 (such as ion chambers) in each of the sections are fed to an adder unit 35 to provide a reference signal. The output from the adder unit 35 is connected to each of three comparator amplifier and discriminator units 36, 37, 38 which are connected also to the flux detection apparatus 32, 33, 34. By this means power in the sections above or below the average of that in the vessel is sensed. Outputs from the comparator amplifier and discriminator units of each section feed to the associated control valves. Assuming an excess of reactivity in section 21 and a deficit in section 22 then the output signals from the units 36, 38 are arranged to open the valves 25, 30, respectively, so that more He is introduced into section 21 and He is released from section 22 to depress the level of the moderator in section 21 and raise the level in section 22. The invention also finds application in a construction of reactor in which the moderator mass is contained in a plurality of vessels which are interconnected for moderator flow.
Patent GB-1081047-A (GB)
Title: Improvements in and relating to methods and apparatuses for the regulation of a compressor assembly
IPC: F04B49/02
Filed: 1965-11-19
Abstract: 1,081,047. Fluid-pressure servomotor systems. HOERBIGER VENTILWERKE A. G. Nov. 19, 1965 [Nov. 24, 1964], No.49367/65. Heading G3P. [Also in Division F2] In a compressed air system the compressor is unloaded in stages in response to the. pressure difference across an adjustable throttle in the delivery line to maintain the upstream pressure of the throttle slightly higher than the downstream pressure, the latter being the desired operating pressure of the apparatus supplied by the compressor. As shown, a double-acting compressor 1 has delivery valves 4, 5, suction valves 2, 3 with unloading cylinders 17, 18 and clearance spaces controlled by units 19, 20. The delivery line 7 to consuming apparatus 13 includes a feed tank 8, a discharge tank 11, a manually controlled throttle 9 and a further throttle 10 operated in response to downstream pressure by a transmitter 14 and pilot valve 15. The pressure difference across the throttles is applied via lines 32, 33 to a piston valve 16 having a supply port 21 connected by line 27 to the delivery line, ports 22-25 connected respectively to units, 19, 17, 20, 18, and an exhaust port 26. In operation, when the compressor is first started the piston (40) of valve 16 Fig. 3 (not shown) is urged to the left by spring (48) to connect ports 22-25 to exhaust, the compressor thus delivers its maximum output to apparatus 13. When the pressure in the system reaches a predetermined value, transmitter 14 initiates closure of throttle 10, and when the pressure upstream of the latter reaches a predetermined value piston (40) is moved to the right to connect ports 21, 22, thereby actuating unit 19 to partially unload one end of the compressor. Further increase of the upstream pressure causes movement of piston (40) to progressively connect port 21 with ports 23-25, thereby causing further unloading of the compressor. The unloading may be in stages of 25% of the maximum compressor delivery, each stage corresponding to the engagement of a groove in piston (40) with a detent (41). In modifications, tanks 8, 11 and throttle 9 are omitted; spring (48) may also be omitted if the left-hand end of piston (40) is of a larger effective area than the right-hand end. The piston (40) may alternatively be actuated by a single doubleacting piston or diaphragm. In Fig. 2 (not shown), a similar compressor supplies two consumers (13', 13") via lines (12', 12") having throttles (10', 10") controlled by transmitters (14', 14"), check valves (34, and 35) being provided to transmit the higher of the two downstream pressures to valve (16) so that the latter operates to maintain an upstream pressure that is slightly higher than the highest of the two downstream pressures. A vent valve (36), the downstream side of which can lead to the compressor section, permits ventilation of valve 16 in the event of decreasing consumer pressures.
Patent GB-1204440-A (GB)
Title: A binding machine
IPC: B65B27/06
Filed: 1968-10-17
Abstract: 1,204,440. Binding machines. BOTALAM. 17 Oct., 1968 [29 Nov., 1967], No. 49378/68. Heading B8C. In a binding machine of the kind comprising two articulated shells 21, 22 having on the internal faces thereof a passageway 20 for a binding wire, a rotary wire-twisting head 19 provided with slots 40 for gripping the two crossed ends of the wire, a device for feeding and drawing the wire, a clamp for gripping the free end of the wire, and a shearing unit for cutting the other end of the wire, the shells are provided with nose-shaped extensions 55, 56 which are adapted to cover the longitudinal opening of one of the slots of the twisting head when the head is stationary and the shells are in closed position so as to co-operate with the entrance and the exit of respective passageways to form two closed guide passages for the binding wire. As shown, the wire is drawn through ducts 2, 4 after the shells have been closed about a coil of wire or a fagot of rods by means of jacks 26, 27 and clamped by a jaw 10 within a groove 5 in a rotatable and reversible drum 10 which upon rotation moves the wire into a duct 11, past a shearing unit comprising a movable part 12 and a stationary part 13, through a slot 40 of the twisting head 19 and into the passageway 20 and then out of the passageway into the second slot 40 of the head 19 to be clamped by a jack 34 against a boss on the shell 21; the wire is also clamped within the duct 11 by a jack 65, and the drum is rotated in the reverse direction to tension the wire. Subsequently, a jack 44 initiates by a cam 41 closure of the jaws 36, 37 of the head 19 to clamp the crossed ends of the wire in the slots 40 when the end retained by the jack 34 is freed and the part 12 of the shearing unit under the action of a jack 15 cuts the wire. The shells are now opened and the head 19 is rotated by a jack 47 to twist together the ends of the wire and an arm 57, lifted by a jack 60, causes a fork 58 thereon to fold back the face ends of the wire. The apparatus may be semi or fully automatic in operation, or hand-operated.
Patent GB-995217-A (GB)
Title: Improvements in apparatus for controlling the supply of fuel and air for combustion in a pulsating combustion system
IPC: F23C15/00
Filed: 1963-12-16
Abstract: 995,217. Pulsating type combustion chambers. JUNKERS & CO. G.m.b.H. Dec. 16, 1963 [Dec. 24, 1962], No. 49505/63. Heading F1L. [Also in Division F2] A pulsating type combustion chamber has a fuel and air inlet device comprising a housing 10 surrounding a disc 12 having concentric rings of holes 14, 15, 16. A disc 19 and concentric ring 20 have rings of holes 24, 25, 26 aligned with holes 14, 15, 16 in disc 12. A flexible closure ring 27 and similar rings 28, 29 mounted on an annular partition 31 co-operate with the holes to form non-return valves. A second partition 30 is mounted in the annular gap 21 between disc 19 and ring 20 so as to promote mixing within the gap of air flowing through holes 15 and gaseous fuel flowing through holes 14 from chest 18. Combustion air also flows through holes 16 and annular gap 22. A bolt 33 retains a spring bridge 32 which can be adjusted to alter the axial position of ring 20 and thus the stroke of flexible rings 28, 29. In a modification disc 19 and ring 20 are replaced by a single disc with equivalent holes.
Patent GB-1138205-A (GB)
Title: Polyureas and polyurea-polyurethane polymers and their preparation
IPC: C08L75/04
Filed: 1965-11-22
Abstract: 1,138,205. Polyureas and polyurea-polyurethanes. MERCK & CO. Inc. 22 Nov., 1965 [24 Nov., 1964], No. 49520/65. Heading C3R. [Also in Divisions B2 and C5] A reaction product which at 25 C. will tolerate at least an equal volume of mineral spirits is prepared by reacting a diisocyanate of the formula wherein X is hydrogen or a carboalkoxy group containing at least 4 carbon atoms in the alkyl residue, and when X is carboalkoxy, R is an alkyl radical of at least 4 carbon atoms and when X is hydrogen, R is an alkyl radical of at least 8 carbon atoms; n is 2 or 3; with a compound which is (1) a diamine of the formula R 2 -NH-G-NH 2  where R 2  is an alkyl or a straight chain ethylenically unsaturated hydrocarbon radical of 6 to 20 carbon atoms; G is (CH 2 ) m  and m is at least 2 and the sum of carbon atoms in R 2  and G is 14 to 28 or (2) a mixture of (1) and a polyol containing at least three times as many carbon atoms as hydroxy groups, said mineral spirits having a boiling range of 161-197 C. and Kauri-Butanol value of 39. The diisocyanates are the phosgenation products of the relevant esters of ornithine, lysine, 2,5-diamino adipic acid and 2,6-diamino pimelic acid, that exemplified being the octyl ester of lysine diisocyanate. Suitable polyols are hydroxy terminated polyesters which may be derived from " Dimer Acids " by reaction with glycols, polybutylene glycol, long chain glyceryl esters such as glyceryl monostearate and castor oil and suitable diamines are N- substituted trimethylene diamines, the substituents being the hydrocarbon moiety of coconut, soya, oleic and tallow fatty acids. Copolymers may be produced by reacting an NCO group containing product derived from an excess of the above diisocyanates and a polyol with an amino group containing product which has been prepared from excess of the above diamines and one of the above diisocyanates.
Patent GB-1363424-A (GB)
Title: Electric switch
IPC: H01H23/14
Filed: 1971-10-20
Abstract: 1363424 Electric switches BRITISH INSULATED CALLENDER'S CABLES Ltd 20 Oct 1971 [20 Oct 1970] 49803/70 Heading H1N An electric switch comprises a dolly 3 pivotally mounted in a housing and co-operating with a moving contact member which co-operates in at least one of two positions with fixed contacts, the dolly 3 carrying a separately formed rocker 7 for effecting pivotal movement of the dolly, which rocker is mounted in the housing to pivot about an axis parallel to the pivotal axis of the dolly. As shown, the housing contains two switches each with a dolly 3 which is mounted in inverted V-shaped bearings formed in a pair of pedestals 5. Concave bearing surfaces 6, 6<SP>1</SP> are mounted alongside the pedestals 5 and a pair of convex bearing surfaces 10 of each rocker 7 are mounted on surfaces 6, 6<SP>1</SP>. Each dolly has an upstanding spigot 4 which fits in a tubular stud 9 of a rocker 7. Instead of two rockers 7 a single double size rocker with a pair of studs 9 fitted to the spigots 4 of the dollies 3 may provide conjoint actuation of the switches.
Patent GB-1130344-A (GB)
Title: Improvements in expendable mold and method for sealing joints in fluid mains
Inventor: CARPMAEL MAURICE HERBERT
IPC: F16L13/10
Filed: 1965-11-24
Abstract: 1,130,344. Sealing pipe joints. WEST CHESTER CHEMICAL CO. 24 Nov., 1965, No. 49896/65. Headings F2G and F2P. [Also in Division B4] In a method of sealing a spigot and socket pipe joint located at the bottom of an excavation, a flexible expendable shroud or mould 50 is circumferentially wrapped with overlapping edges around the joint, which has been previously chemically or abrasively cleaned, such as by sand-, grit, wheat- or refractory-blasting or wire-brushing, from a position remote from the joint, Figs. 8-16 (not shown), first and second portions 51 and 53 of the shroud are clamped about the socket and spigot respectively by flexible steel straps 80 and 81, and a sealant is injected through a tube 65, Figs. 1 and 6 (not shown), in an intermediate shroud portion 52 into an annular cavity 90 defined between the shroud and the joint. As shown, the shroud is used to seal leakage through a jute and lead caulked joint in pipe line below the surface by an operator at the surface; The three shroud portions may be formed integrally or, as shown, by three connected sections and may be of rubberized fabric, foamed rubber linings 57 being provided on the first and second shroud portions. The shroud is first lowered and manipulated about the excavated joint, Figs. 8-11 (not shown), and retained by a coil spring 70 in position. Flexible steel bands are then strapped around the shroud to clamp it permanently in position, Figs. 13-15 (not shown). Sealant is then injected from a pump 118 through a connecting conduit 103, Fig. 16 (not shown), until a pressure gauge 123 or other means indicates that the cavity is filled. The connecting conduit is disconnected, tied to prevent leakage, and dropped into the excavated hole. The sealed joint is then reburied. A small plastic flap 62, Figs. 6 and 7 (not shown), enables air to escape from the intermediate shroud portion on injection of the sealant.
Patent GB-1191247-A (GB)
Title: Incandescent Lamp
IPC: H01K1/18
Filed: 1968-10-24
Abstract: 1,191,247. Quartz-halogen lamp. SYLVANIA ELECTRIC PRODUCTS Inc. 24 Oct., 1968 [31 Oct., 1967], No. 50570/68. Heading H1F. A lamp has a quartz envelope 1 with two lead-ins 4 and 5 sealed in the pinch 2 of the envelope and passing through a quartz bridge 16. A coiled-coil filament 12 of tungsten is held under tension by locating the coils 10 and 14 in the respective end of the connector 6 and the lead-in 5. The filament is additionally supported by a tungsten wire 15. The coils 10 and 14 are crimped on to their mountings. Connector 6 is made of refractory metal and its upper end crimped to lead-in 4 and located in the tip-off 3.