baber/WOPTO huggingface dataset:
Patent GB-1036705-A (GB)
Title: Improvements in control of a.c. machines
IPC: H02P1/26
Filed: 1963-10-02
Abstract: 1,036,705. Control of A.C. motors. BRITISH AIRCRAFT CORPORATION (OPERATING) Ltd. Oct. 2, 1963 [Aug. 12, 1963], No. 38833/63. Heading H2J. During reverse-current braking operation of an A.C. motor, a train of signals having slip frequency is applied on an R.C. circuit so that the capacitor discharges to a given level when the frequency is not greater than a set value, the A.C. supply being removed when the capacitor discharges to said level. A sinusoidal signal of slip frequency is fed to a square wave generator (comprising diode 6 and transistor VT3) the output of which is applied to a circuit including resistors R1, R4, R5, and capacitor C1. The resulting waveform is supplied to a switchtransistor VT4 which applies a signal across a second circuit (having a long time constant and comprising capacitors C2a, C2b and resistor R2) when the amplitude of the waveform falls below a level set by Zener diodes D4, D5. The voltage across the second R.C. circuit is applied to the base of transistor VT5, so that, when the said voltage falls below a threshold value provided by potential divider R7, R8, capacitor C3 is charged. When transistor VT4 is again rendered conductive, the voltage across the second R.C. circuit rises above the threshold value and the capacitor C3 discharges through resistor R3 whereby transistors VT6, VT7, operate to energize relay 5 and disconnect the motor. The detector does not operate when the slip frequency is increasing, but when the frequency is decreasing as the motor approaches the standstill condition. In another arrangement, for starting the motor, the relay operates to reduce the rotor resistance, and to modify the time constant of the first R.C. circuit so that further reduction of the slip frequency will cause re-operation of the relay. A rotary switch is used to connect different resistors successively in series with resistors R4, R5, the switching operation being dependent upon the detected slip frequency. A wiper of a second switch-bank energizes relays to short-circuit the rotor resistance successively.
Patent GB-1158904-A (GB)
Title: Improvements in or relating to Refining Processes
Inventor: MAYCOCK ALISTER
IPC: C07C51/43
Filed: 1965-09-11
Abstract: 1,158,904. Fractional melting. CHEMICAL ENG. WILTONS Ltd. 22 Aug., 1966 [11 Sept., 1965], No. 38897/65. Heading B1G. In a crystallization process followed by fractional melting supercooling is prevented by local intense thermoelectric cooling, a vessel a contains heat exchangers b and c supplied with brine by a pump d through a heater e and cooler f. The cold junctions of a thermoelectric device - m are located in the vessel and the device is supplied with current continuously. The vessel a is filled with substance to be purified from a reservoir j  and the substance is wholly crystallized by use of the heat exchangers b, c and f. The lower part of the vessel contents is melted by use of the heat exchangers b and e and run into a reservoir i. The upper part of the contents is then slowly heated by use of the heat exchangers c and e and the resulting fractions run into reservoirs k and l. Recirculation and cascade techniques may be employed'. Preferred operating conditions are disclosed.
Patent GB-879455-A (GB)
Title: Improvements relating to automobile wheel syspension systems
IPC: B60G15/14
Filed: 1956-12-21
Abstract: 879,455. Hydropneumatic spring suspensions. SAMPIETRO, A. C. Dec. 16, 1957 [Dec. 21, 1956], No. 39065/56. Classes 108(2) and 108(3). In a road vehicle suspension system a wheel 10, Fig. 1, is mounted on a frame 16 by a hydro-pneumatic spring unit 12. A piston rod 14 is resiliently connected to the frame by rubber blocks 15 and a cylinder 11 is connected to a socket 17 which carries a stub axle 34. A swing axle 18 is connected to the socket 17 and as the wheels are turned to steer the vehicle the cylinder 11 rotates on the piston 13. The static height of the vehicle may be adjusted by a valve 24 which controls the quantity of oil in the spring units 12 by connecting the units to a high pressure tank 27 in one position, or a low pressure tank in another position. A third position of the valve 24 isolates each of units 12 so that they act independently. In a second embodiment the swing axles have sockets which enclose ball joints on the lower ends of the hydropneumatic cylinders. Fig. 5 shows an actual construction of telescopic spring unit. A member 47 slides in a cylinder 46. A disc 70, having metering orifices 71, closes the end of the member 47. In operation chambers 72, 77 are full of oil and a chamber 76 contains air, the latter being supplied through a tube 74. Under load, oil is forced from the chamber 72 through damping orifices 71 into the chamber 77 to lift a piston 75 and compress the air in the chamber 76. Static height is adjusted by changing the quantity of air in the unit. In a modified form of the unit the tube 74 extends down through the piston 75 to the lower oil chamber 72. The method of operation is similar but static height adjustments are made by changing the quantity of oil in the unit through tube 74, the amount of air remaining constant. Specification 879,453 is referred to.
Patent GB-1006981-A (GB)
Title: Improvements in or relating to catches for doors and like hinged or sliding panels
Inventor: JAMES JOHN MARTIN
IPC: E05C19/16
Filed: 1963-10-08
Abstract: 1,006,981. Magnetic fastenings. HARRISON (BIRMINGHAM) Ltd. Aug. 21, 1964 [Oct. 8, 1963], No. 39541/63. Heading E2A. A door catch of the kind which includes a magnetic element and a keeper element each adapted for attachment either to the door or to the door jamb and so arranged that when secured one to each of these parts the magnetic element and the keeper element can come into contact with one another and thus secure the door releasably in the desired position is characterised in that the magnetic element includes a permanent magnet 14 and a pair of ferromagnetic pole pieces 16 in contact with the magnet, the magnet and pole pieces being disposed inside a casing 12 and adapted for limited pivotal movement with respect to the casing about an axis, which is parallel to the plane containing the keeper-engaging faces of the pole pieces, the arrangement being such that on engagement with, or the approach of, the keeper element the pivotal movement of the magnet and pole pieces can take place so as to ensure good gripping contact between the keeper element and both pole pieces. The pole pieces 16 are secured to the magnet 14 by a nylon sheath 18 which is a tight sliding fit over the magnet and pole pieces. The sheath 18 has two lugs 20 which seat in recesses 22 in the casing to provide the pivotal movement. Each pole piece 16 has a pair of projections 24 which engage with the sheath to prevent removal of the pole pieces. The strength of the magnet used may be varied by removing the casing and sheath and replacing the magnet with a stronger or weaker one.
Patent GB-1087799-A (GB)
Title: Water jet propulsion apparatus
IPC: B63H11/00
Filed: 1964-12-30
Abstract: 1,087,799. Marine Jet-propulsion apparatus. TAMCO Ltd. Dec. 30, 1964 [Feb. 14, 1964], No. 39838/66. Divided out of 1,087,797. Heading B7V. The subject-matter of this Specification is substantially the same as that described in the parent Specification, but the claims mainly concern jet-propulsion apparatus comprising water intake means constituted by ducting, which includes a plurality of separate passages.
Patent GB-1422673-A (GB)
Title: Elastomeric vibration isolation pad
IPC: F16F1/44
Filed: 1973-08-22
Abstract: 1422673 Supporting railway track GENERAL TIRE & RUBBER CO 22 Aug 1973 [11 Sept 1972] 39886/73 Heading E1G [Also in Division F2] A concrete support bed 33 for railway tracks 35 is mounted via vibration isolation pads 10 on a tunnel or bridge structure 30. Each pad 10 comprises a base plate 13, a cup-like member 12, and an elastomeric member 15, 16 secured between them, and comprising a main body portion 15 and an annular portion 16 spaced from but integral with the main body portion 15 and providing lateral stiffness, without significantly increasing vertical stiffness. The portion 16 is joined to the portion 15 by three ribs (17, Fig. 2 not shown). In the embodiment of Figs. 3 and 4 (not shown) the ribs are replaced by an annular connecting portion. The ratio of vertical stiffness to lateral stiffness is less than 8. Graphs are given of compressive load v. vertical deflection, and of sheer load v. lateral deflection, for the pads of Figs. 1 and 3, and for a pad with no lateral stiffening portion 16. The pad is rubber or urethane with a Shore A hardness of 40-55.
Patent GB-943462-A (GB)
Title: Improvements in apparatus for washing glass
IPC: B08B11/04
Filed: 1962-10-23
Abstract: 943,462. Washing flat sheets of glass. FORD MOTOR CO. Ltd. Oct. 23, 1962 [Dec. 18, 1961], No. 40035/62. Heading A4F. In washing apparatus for vertical flat sheets of glass, pairs of vertically extending feed rollers 31, 32 and at least one pair of vertical rotary brushes 56 positioned between two adjacent pairs of feed rollers are contained in an enclosed housing so that the nips of the pairs of rollers lie in the same vertical plane, the rollers 32 and brushes 56 on one side of said plane being secured to a door, mounted on the housing for outward movement. The rollers 32 are biased by springs (not shown) against the rollers 31 which are driven by a motor which also drives the brushes 56. Sheets of glass are fed from a conveyer belt (not shown) through the slot 26 in the housing and are sprayed with liquid while being cleaned by the brushes before being ejected through the slot 27 on to another conveyer belt.
Patent GB-1469027-A (GB)
Title: Battery hand lamp
IPC: F21V23/06
Filed: 1974-09-16
Abstract: 1469027 Battery lighting units P MAURER 16 Sept 1974 [17 Sept 1973] 40196/74 Heading F4R A battery hand lamp comprises an electrical supply unit 3 which is detachably sealed to a lamp unit 1, with the electrical connectors extending between the lamp and supply units in the form of co-operating concentric rings 27 and slide contacts 29 which permit electrical connection of the two units in any relative angular position about a single common axis. As shown, the slide contacts 29 are spring contacts extending from the lower socket 31 of the lamp unit in which may be mounted a fluorescent tube 23 or other light source, and the cooperating rings 27 are concentric conductors disposed on one side of a mounting plate 25 which is secured to the battery housing 9 and which supports electronics 12 which provides the appropriate electrical supply to the lamp 23. The lamp unit 1 has an outer protection tube 35 which has a reduced diameter end 41 sealed by an 0-ring 43 in a cylindrical socket formed in the supply unit 3, the units being releasably held together by friction. The lamp unit may be provided with an aluminium sheet reflector, Figs. 13-15 (not shown), which may be apertured, and light emitted in different directions from the unit may be differently coloured, e.g. by using filters. The bottom of the supply unit 3 has releasably sealable covers permitting replacement of the batteries 17. A switch for the hand lamp, Figs. 10-12 (not shown), may include a movable magnetic element outside the housing which influences the contacts sealed inside the housing. The housing portion 11 of the supply unit 3 enclosing the electronics 12 may be filled with a plastics foam to seal the components. Hollow spaces may be so built into the lamp that it will float in water, the lamp housing may also be provided with a plastics strap or a magnetic strip for mounting the hand lamp.
Patent GB-1474028-A (GB)
Title: Manufacture of toothed clutches
IPC: F16D23/10
Filed: 1973-08-28
Abstract: 1474028 Grinding SSS PATENTS Ltd 2 Aug 1974 [28 Aug 1973] 40420/73 Heading B3B [Also in Division F2] A method of manufacturing a synchro-self shifting clutch of the type having a pawl and ratchet mechanism 11, 13 which initiates helical movement of an intermediate member 5 along helical splines 4 of a clutch hub 3 to initiate precise interengagement between clutch teeth 8, 2 on the intermediate member 5 and a clutch drum 1 comprises grinding the working surfaces of the clutch teeth 8, or grinding a datum diameter 34 for use in subsequent grinding of the working surfaces of the teeth 8, and/ or balancing the intermediate member and clutch hub 3 whilst torque is present between the intermediate member 5 and hub 3. During the grinding or balancing process torque is maintained between the intermediate member 5 and hub 3 by an apparatus comprising a hub 16 having helical splines 20 of the same hand as the splines 4 of the clutch hub 3 and engaging splines 28 on a sleeve 27 which is connected by a resilient coupling 26 to a sleeve 21. In use the hub 16 and sleeve 21 are connected by bolts 32 to the clutch hub 3 and intermediate member 5 respectively. Thereafter a nut 31 is screwed onto the end of the hub 16 to move the sleeve 27 helically relative to the hub 16 and thus apply a torque between the clutch hub 3 and intermediate member 5.
Patent GB-1379219-A (GB)
Title: Thermoelectric microgenerator
IPC: H01L35/08
Filed: 1973-08-28
Abstract: 1379219 Thermoelectric generators COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 28 Aug 1973  [13 Sept 1972] 40535/73 Heading H1K A thermoelectric microgenerator comprises a, plurality of series-connected thermocouple junctions J, J<SP>1</SP>, Fig. 1, between thin layer elements P, N deposited on a thin electrically insulating and poor heat-conducting support 2, the elements P, N being arranged in rows connected together to form a continuous meandering conductor. A heat sink 4 has low parallel walls 8 located adjacent even junctions J of the thermocouples, while a similar heat source 3 on the opposite side of the support 2 has low parallel walls 6 located adjacent odd junctions J<SP>1</SP>. Although as shown the heat source 3 is separated from the junctions J<SP>1</SP> by the support 2, the positions of the source 3 and sink 4 may be reversed. The low walls of the source 3 and/or sink 4 may be secured to the support 2 and junctions J respectively by insulating glue, but in a modification the walls 6 of the source 3 are welded to a metal layer on the support 2. The source 3 and sink 4 may be held so close together that the support 2 becomes corrugated, and the adjacent layers may also be curved rather than planar as shown. The thermocouple rows and the low walls of the heat source and sink may be arranged in a linear orthogonal pattern, or the walls may be concentric circles crossed by radial rows of thermocouples. Fig. 8 shows a microgenerator for use with a heart stimulator. Its heat source includes a plutonium battery 23 at 100 C., the heat sinks of two coaxial generators 20 of the last-mentioned type comprising parts of an outer casing 24 at body temperature, 40 C. The casing 24 is filled with thermal insulation. Ceramic balls 30 sit in recesses 29 to mutually locate the heat source and sink. The thermoelements may be of bismuth telluride.
Patent GB-1329351-A (GB)
Title: Instrument for measuring the solar energy absorbed by a surface
IPC: G01J5/12
Filed: 1971-08-31
Abstract: 1329351 Thermoelectric devices COMMISSARIAT A L'ENERGIE ATOMIQUE 31 Aug 1971 [7 Sept 1970] 40556/71 Heading H1K Solar energy absorbed by a surface such as the ground is measured by means of an instrument having two opposed major radiation absorbing faces for absorbing direct solar radiation and solar radiation reflected from the ground respectively, the heat absorbed by each of the two faces being measured by thermocouples, and both surfaces being maintained close to ambient temperature by the provision of a central fluidcooled thermally conductive disc 14. In the embodiment the disc 14 is made of Cu and is water-cooled via a peripheral tube 18. The radiation-absorbing layers 11, 12 both comprise blackened silvered Cu sectors, each of which sectors has attached thereto two Fe-constantan thermocouple junctions 26. Cu leads 27 connect the couples to a voltmeter, and couples on opposite faces of the instrument are interconnected through channels 29 in the disc 14. The absorbing layers 11, 12 are separated from the disc 14 by layers 15, 16 of a material which conducts heat sufficiently well to allow the layers 11, 12 to approach ambient temperature due to the water-cooling of the disc 14. Thermally conductive guard rings 17 mounted on the layers 15, 16 around the absorbing layers 11, 12 prevent lateral heat exchange. Transparent protective hemispheres 13 may cover both absorbing faces.
Patent GB-866394-A (GB)
Title: An optically active quinolizine and a process for the production thereof
IPC: C07D455/03
Filed: 1959-11-30
Abstract: The invention comprises dextro-rotatory (+)-2,3,10,11-tetramethoxy- 5,6,13,13a-tetrahydro-8-dibenzo-(a,g) -quinolizine and its acid addition salts, and the preparation thereof by resolution of the racemate with an optionally active acid or by condensing (+)-tetrahydropapaverine hydrochloride with formaldehyde.
Patent GB-1156257-A (GB)
Title: New Organosilicon Compounds, their Preparation and their Use
IPC: C07F7/18
Filed: 1967-09-06
Abstract: 1,156,257. Organosilicon compounds. RHONE-POULENC S.A. 6 Sept., 1967 [8 Sept., 1966], No. 40798/67. Headings C3S and C3T. [Also in Division C5] Organosilicon compounds containing the radical where R<SP>1</SP>, R<SP>11</SP> and R<SP>111</SP> each represent hydrogen atoms or inert organic radicals and each R 1  is a saturated or aromatic hydrocarbon radical or an alkoxy, cycloalkoxy, aryloxy or aralkoxy group, may be hydrolysed or alcoholysed to form #-hydroxyalkyl silicon compounds. The compounds of Formula I are prepared by reacting a compound containing a silicon-hydrogen bond with a vinyloxysilane in the presence of a catalyst. The compound containing Si-H may be a mono- or poly-silane, polysilylalkane, polysiloxane or cyclopolysiloxane. Suitable catalysts are organic peroxides, ultra-violet light, nickel compounds and, preferably, platinum compounds. The #- siloxyalkyl silicon compound may be isolated or directly converted to the hydroxyalkyl compound. Where the original compound containing Si-H bonds also contain hydrolysable groups, the product will contain siloxane units. The hydrolysis may also take place in the presence of other hydrolysable silanes. The #-hydroxyalkyl compounds may be used as lubricants or in coating compositions or for the production of polycondensates by reaction with polyacids or polyisocyanates. The siloxyalkyl compounds of Formula 1 may also be used in impregnating compositions. Specification 1,060,910 is referred to.
Patent GB-881512-A (GB)
Title: Process of producing cyclohexylamine
Filed: 1959-12-01
Abstract: Cyclohexylamine is produced by reacting aniline with hydrogen under pressure in the presence of a rhodium or rhodium oxide catalyst and at a temperature between 25 DEG C. and 200 DEG C.  The catalyst is deposited on an inert carrier, such as alumina.  The hydrogenation may be carried out at low-pressure, e.g. 15 to 60 psig, or at high-pressure, e.g. 200 to 10,000 psig, the time required for the complete reduction of the aniline being considerably shorter in the high-pressure reaction.  There are six examples which illustrate both low and high-pressure conditions. The yields of cyclohexylamine are about 97%, accompanied by about 3% of dicyclohexylamine. Specification 836,951 is referred to.
Patent GB-1150408-A (GB)
Title: Stilbyl-Naphthotriazoles and Their Use as Optical Brightening Agents for Textiles
IPC: D06P1/00
Filed: 1967-09-07
Abstract: 1,150,408. Stilloyl-naphtho-triazoles. J. R. GEIGY A.G. 7 Sept., 1967 [8 Sept., 1966], No. 40977/67. Heading C2C. [Also in Division D1] Novel compounds of general Formula II in which Hal represents F, Cl or Br and one of Y 1 , Y 2  and Y 3  is -SO 3 H and the others are H are prepared by coupling the diazo salt of a compound with a compound in which one of Q 1  and Q 2  is -NH 2  and the other is H, followed by oxidation of the azo compound so formed.
Patent GB-1286557-A (GB)
Title: Method of preventing differential slackness across drawn tow during transit
IPC: D01D10/04
Filed: 1970-08-27
Abstract: 1286557 Controlling filament paths TEIJIN Ltd 27 Aug 1970 [28 Aug 1969 (2)] 41374/70 Heading B5B [Also in Division D1] The slackness of sections across the width of a drawn ribbon-like tow of continuous synthetic multifilaments is removed, during the movement of the tow towards a mechanical crimper by heating any part of the tow having a lower tension per unit length than the other parts until it regains a tension sufficient to remove the slackness. The temperature of the heating means is above the heat-shrinkage initiating temperature (as herein defined) of the filaments but below the softening point. Thus, in the embodiment disclosed in Fig. 1, the tow 1 after being stretched between roller sets 2, 3, 4 and 6, 7, 8 comes, in transit to the stuffer-box 20, under the influence of heaters 22, 23 and 24. In the embodiment disclosed in Fig. 2, wherein the tow is separated into three sub-tows, the heating means 22, 23, 24 are located between the drawing step and the separation. Preferred heating means are a spray of hot water or a jet of a hot vapour such as steam. The method is applicable to filaments of several polymeric materials but particularly to polyesters such as polyethylene terephthalate which may be copolymerized with up to 15% of other monomer units.
Patent GB-1487345-A (GB)
Title: Ptc thermistor composition and method of making the same
IPC: H01C7/02
Filed: 1974-09-24
Abstract: 1487345 Thermistor composition MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 24 Sept 1974 [24 Sept 1973] 41489/74 Heading ClJ [Also in Division H1] A positive temperature coefficient thermistor composition consists of a sintered mixture comprising (a) barium oxide, barium strontium oxide or barium lead oxide, (b) 0À90-1À05 mole, per mole of oxide (a), of titanium dioxide of titanium stannic dioxide, (c) 0À0005-0À002 mole, per mole of oxide (a), of a pre-earth oxide, Nb 2 O 5 , Ta 2 O 5 , Bi 2 O 3  or Sb 2 O 3  and (d) 0À0005- 0À10 mole, per mole of oxide (a), of hafnium dioxide. Optional ingredients of the composition are 1 Î 10<SP>-4</SP> to 1À5 Î 10<SP>-3</SP> mole, per mole of oxide (a), of manganese dioxide and/or 0À006- 0À05 mole, per mole of oxide (a), of SiO 2 .
Patent GB-1450182-A (GB)
Title: Gauging means for measuring properties of sheet materials
IPC: G01B13/06
Filed: 1973-09-05
Abstract: 1450182 Air gauges INDUSTRIAL NUCLEONICS CORP 5 Sept 1973 [5 Sept 1972] 41840/73 Heading G1M Sheet material 4 to be gauged by an air gauge 1 is held against the upper surface of a support 2 by suction created by filtered compressed air supplied to a nozzle 13 positioned as shown relative to Venturi cones 15. Specification 1450181 is referred to.