baber/WOPTO huggingface dataset:
Patent GB-911745-A (GB)
Title: New substituted phenols and phenolic ethers and a process for their preparation
IPC: C07C65/28
Filed: 1959-12-03
Abstract: The invention comprises compounds of formula <FORM:0911745/IV (b)/1> wherein R is a straight-chain, aliphatic hydrocarbon radical of 15 carbon atoms having at least two and generally two or three ethylenic linkages therein, all of said linkages being conconjugated; R1 is hydrogen or an alkyl, aryl, aralkyl or alkaryl radical, or hydroxy derivatives thereof, or derivatives of any of the foregoing radicals containing ethylenic unsaturation and having from 1 to 22 carbon atoms; and the group Z is absent or is the radical R1-O- or -COOM wherein M is a Group I or II metal or R1.  They are prepared by maintaining a mixture of a compound of the above formula but wherein R is a C15 aliphatic radical having two or more unconjugated ethylenic linkages, an alkali and a solvent at between 30 DEG  and 225 DEG C.  Specified starting materials include derivatives of cardanol, cashew nut-shell liquid either in its natural state or decarboxylated and alkyl ethers thereof.  In an example a commercial ethyl ether of cashew nut shell liquid was heated in a nitrogen atmosphere in an ethylene glycol monoethyl ether solution of sodium hydroxide, the mixture extracted with pentane and distilled to give a residue containing a mixture of compounds wherein R1 = C2H5, Z = H or C2H5O- in the 5-position and R is a C15 side chain containing 2 or 3 conjugated ethylenic linkages; (2) the compound wherein Z = H, R = C2H5 and R is an isomerised -(CH2)7-CH = CH-CH2-CH=CH-CH2-CH=CH2 group is similarly prepared.
Patent GB-1115198-A (GB)
Title: Rotary-piston internal combustion engines
IPC: F02B53/00
Filed: 1965-09-28
Abstract: 1,115,198. Rotary-piston I. C. engines. B.P. FOXLEY-CONOLLY. Sept. 28, 1965 [Sept.28, 1964], No.41097/65. Heading F1F. A rotary-piston I. C. engine of the hinged or rocking-abutment type comprises a pair of pistons or rotors 27, 28, Fig.1, mounted on a rotatable power-output shaft 23 and lodged in a stationary casing 10, which includes a partition 16 situated between the pistons. Hinged abutments, or socalled cam-followers, 49, Fig. 2, engage with the peripheral surface of each piston to define with a cam surface 36 or (36a), Fig. 4 (not shown), thereon and the casing a pair of working spaces 57, 58, the abutments being situated in two inlet openings 13 on one side of the partition 16 and two outlet openings 14 on the other side thereof. Apertures are formed in the abutments to prevent obstruction of said openings. A sealing strip or blade (53), Figs. 5 and 6 (not shown), is attached to the free end 52 of each abutment; and lever arms (55) attached to the abutments are connected to one another at each end of the casing 11 by tension springs (56), Fig. 3 (not shown). Balancing of each piston is effected by a plurality of axial bores 37 or (37a). In operation, fuel-air mixture is drawn into the working space 57 associated with the piston 27 through one or other of the openings 13 while fuel-air mixture filling the adjacent working space 58 is compressed and forced through a plurality of passages 42 into one or other of a pair of combustion chambers 39 on the exterior of the casing 11. When the passages 42 are closed by the piston 27, the fuel-air mixture in the combustion chamber is ignited by a spark-plug lodged in a bore 41, the products of combustion being ejected through passages 43 to effect rotation of the piston 28 before they are expelled through one or other of the outlet openings 14. The pistons are arranged so that they are substantially in anti-phase with one another. The shaft 23 is supported by bearing bushes 24 in end walls or plates 17 of the casing 11 and further bearing bushes 22 in the partition 16. Each piston may comprise more than one cam surface, or corresponding number of combustion chambers and abutments being provided in the casing. The engine may include a plurality of pairs of pistons.
Patent GB-868405-A (GB)
Title: Fractionation of cyclodiene monomer vapors
Inventor: HILLARD GEORGE OLIVER
IPC: C07C7/00
Filed: 1959-12-04
Abstract: Cyclopentadiene and methyl cyclopentadiene are recovered separately from a vapour mixture obtained by cracking a dimer concentrate and containing them together with C7-C9 impurities by separating C5 and C6 vapours from said impurities in a prefactionating zone, passing the vapours to a monomer fractionating zone where C5 monomer is taken overhead, C6 monomer is removed as an intermediate fraction below the vapour inlet and separating redimerised material as bottoms, recracking a substantial part of the bottoms to obtain C5 and C6 vapours which are reintroduced into the monomer fractionating zone above the C6 removal point.  The C7-C9 impurities may be removed as an intermediate cut in the prefractionating zone and bottoms are recycled to the dimer cracking operation.  Monomer fractionation may be in one or two columns, in the latter case C5 being removed overhead from the first and bottoms passed to the second where C6 is removed overhead and redimerised material obtained as bottoms. This is preferably cracked in the vapour phase at 350-550 DEG F. and 1 atmosphere or less for 0,1-1 second.  Part of the recracked product may be recycled to the prefractionating zone to prevent build up of high boiling material while the remainder is passed to the monomer fractionating zone with the monomer vapours.
Patent GB-1104824-A (GB)
Title: Chain length for mining conveyors
IPC: B65G19/20
Filed: 1965-09-29
Abstract: 1,104,824. Chains. GEWERKSCHAFT EISENHUTTE WESTFALIA. 29 Sept., 1965 [31 Oct., 1964], No. 41329/65. Heading F2Q. In a chain strand for a mining chain conveyer, chain locks 1 are of reinforced cross-section in comparison with normal links 3, and the pitch dimension of links 2 adjacent the chain locks 1 is increased by an amount "x" equal to half the difference between the diameter of the normal chain links 3, " d," and that of the chain locks 1, "d 1 ". The pitch dimension of a link 4 joining the two chain locks 1 is increased by 2x, the difference between "d 1 " and " d."
Patent GB-1082859-A (GB)
Title: Polytetrafluoroethylene fibrous powders and process for producing the same
IPC: C08J3/12
Filed: 1964-10-09
Abstract: Polytetrafluoroethylene fibrous powders having an average fibre length of 100 to 5000 microns, an average shape factor of not less than 10 and an anisotropic expansion factor of 1.30 to 7.00 are prepared by grinding polytetrafluoroethylene powders of specific surface area of at least 3 m.2/g. at 30 DEG  C. by the action of a shearing force.  The polytetrafluoroethylene may be obtained by coagulating dispersions prepared by emulsion polymerization, by vapour phase radiation polymerization, or by suspension polymerization.  Minor proportions of compounds CF2=CFRf or CF2=CFORf, where Rf is a perfluoroalkyl radical of 1 to 8 carbon atoms, may be copolymerized with the tetrafluoroethylene. The fibrous powders may be made into paper, e.g. for filter papers.ALSO:Papers may be made from fibrous polytetraethylene powders having an average fibre length of 100 to 5000 microns, an average shape factor of not less than 10 and an anisotropic expansion factor of 1.30 to 7.00. The papers may be used as filter papers for use with strong acids and alkalis.  In Example 2 papers are prepared spreading dispersions of the fibrous polytetrafluoroethylene powders in carbon tetrachloride on 60 mesh metallic sieves, drying and heating to 345 DEG C. for 30 minutes.
Patent GB-1026234-A (GB)
Title: Fluid pressure power braking system
IPC: B60T13/14
Filed: 1963-10-21
Abstract: 1,026,234. Fluid pressure brakes. D.B.A. S.A. Oct. 21, 1963 [Oct. 25, 1962], No. 41526/63 Headings F2E and F2F. A fluid pressure power braking system comprises a brake actuator having an element 66<SP>1</SP> movable in response to fluid pressure for applying a brake, a control valve 26<SP>1</SP> having a housing in which are movable means 48 for controlling fluid flow to and from the actuator, a brake control member 56 under the control of an operator and a lever 52 pivotally mounted on the movable means 48 and operatively connected on the one hand to the control member 56 and on the other hand by an hydraulic linkage to the movable element 66<SP>1</SP> of the brake actuator. As shown, front and rear brake actuators 36, 36<SP>1</SP> are communicated with pressure accumulators 14, 14<SP>1</SP> supplied by a pump 16 through check valves 22, 22<SP>1</SP> by a pair of control valves 26, 26<SP>1</SP> having inlet and exhaust valves 38, 37, upon actuation of the pedal 56 to operate the brakes. The valves 26, 26<SP>1</SP> are actuated by the pedal 56 through the lever 52, the sleeve 48 of which is connected by means of a spring 50 to a rod 46 and a bar 44. The end of the lever 52 is connected to the piston of a master cylinder 60 in fluid communication with a piston cylinder device 64 connected to the movable member 66<SP>1</SP> of one of the rear brake actuators. In a modification the control valves 26, 26<SP>1</SP> may proportionate the braking pressures in the front and rear braking circuit to the load on the front and rear wheel of the vehicle. The system may be hydraulic or pneumatic.
Patent GB-1393659-A (GB)
Title: Hydrogenation process
IPC: B01J27/10
Filed: 1973-09-04
Abstract: 1393659 Hydrogenation of heterocyclic compounds DIAMOND SHAMROCK CORP 4 Sept 1973 [5 Sept 1972] 41535/73 Heading C2C [Also in Division C5] Unsaturated heterocyclic compounds are converted to corresponding saturated compounds by hydrogenating in the presence of a catalyst comprising a mixture of a water-soluble unreduced ruthenium salt and alumina. Suitable unsaturated starting materials are, e.g. pyridine, 2,5-dialkylpyrroles and 2,5-dialkyl-1-pyrrolines. Examples describe the hydrogenation of (a) 2,5- dimethyl pyrrole to 2,5-dimethyl pyrrolidine; (b) 2,5-dimethyl-1-pyrroline to give 2,5-dimethyl pyrrolidine; and (c) pyridine to piperidine.
Patent GB-1414063-A (GB)
Title: Compositions comprising ionic copolymers and slip/block additives
IPC: C08K5/17
Filed: 1973-09-04
Abstract: 1414063 Ionic copolymer compositions E I DU PONT DE NEMOURS & CO 4 Sept 1973 [6 Sept 1972] 41565/73 Heading C3P Compositions comprise (a) an ionic copolymer containing at least 50 mole per cent of C 2-10  α- olefin units, 0À2 to 25 mole per cent of C 3-8  unsaturated mono- or di-carboxylic acid units and optionally units of a further unsaturated comonomer, form 10 to 90% of the carboxylic acid groups being neutralized with metal ions of valence 1 to 3 when the acid is monocarboxylic and of valence 1 when the acid is dicarboxylic; and (b) 0À05 to 2À0 weight per cent of N,N<SP>1</SP>- dierucyl adipamide or N,N<SP>1</SP> - dierucyl sebacamide. The compositions may also contain inorganic antiblock agents, e.g. silica, and other conventional additives, and may be blow extruded to form films with good slip/block properties. Examples describe the blow extrusion of films from compositions comprising (1, 3 and 5) sodium neutralized ethylene/methacrylic acid copolymer and dierucyl adipamide, (2) zinc neutralized ethylene/methacrylic acid copolymer and dierucyl adipamide, and (4) sodium neutralized ethylene/methacrylic acid copolymer, silica and dierucyl adipamide or dierucyl sebacamide.
Patent GB-1304766-A (GB)
IPC: F16L33/22
Filed: 1970-08-28
Abstract: 1304766 Hose end fittings FREDERICK DUFFIELD PTY Ltd 28 Aug 1970 [2 Sept 1969] 41623/70 Heading F2G A hose end fitting comprises a spigot 16, segmental elements 12 adapted to be forced radially inwardly to clamp the hose wall to the spigot, and collars 13, 14 adapted to be fitted around the elements whilst the clamping force is being exerted so as to retain the elements in clamping position after cessation of the force. There may be four segments 12 and these may be interconnected by pliable material (not shown) or affixed around a sleeve of compressible material (not shown). To maintain the segments in a desired configuration, circlips 32 may be positioned in annular grooves or adjacent edges of adjacent segments may be provided with interengaging formations. The collars 13, 14 may be screwed on to threaded ends of the segments or the collars and segments may be formed with interengaging annular grooves. Each collar may be formed with an inwardly facing shoulder for engaging a complementary recess formed in the segments. Collar 13 may include an inwardly directed flange for engageing the spigot 16.
Patent GB-1535540-A (GB)
Title: Circuit for preventing the formation of a luminous spot on the screen of a television receiver upon switch-off
IPC: H04N3/20
Filed: 1976-10-07
Abstract: 1535540 Cathode ray tube circuits INDESIT INDUSTRIA ELETTRODOMESTICI ITALIANA SpA 7 Oct 1976 [9 Oct 1975] 41647/76 Heading H4T A TV receiver circuit for preventing formation of a luminous spot on the screen on switching off comprises a unidirectional conduction device 3 (e.g. s/c diode) between the power supply line and the video amplifier stage to prevent discharge of the cathode immediately on switching off and a capacitor 6 of a value such as to conserve charge to maintain the tube cut off, for at least a time sufficient to allow the accelerator anode of the tube to discharge upon switching off. Also included are brightness control potentiometer 2, load resistor 4, and transistor 5. Transistor 5 base is biased from the supply section through terminal 13 and also receives the video signal. Circuit parameters are disclosed and operational features discussed. The c.r.t. accelerating anode of the c.r.t. 9 may have a 9 pF capacitance which causes undeflected electrons from the hot cathode to impede on the phosphor screen after the supply is switched off.
Patent GB-1450097-A (GB)
Title: Humidifier method and apparatus for printing
IPC: F24H1/00
Filed: 1973-09-06
Abstract: 1450097 Humidifiers RESPIRATORY CARE INC 6 Sept 1973 41995/73 Heading A5T A humidifier comprises a container having a cover 29 provided with an inlet 34 and an outlet 32 for a gas. a heater 56 mounted under the container and including heating elements and a temperature sensor, a gas dispersion plate 52 mounted in the container nearer its bottom than its top to define a chamber 55, and a tube 50 integral with the plate 52 for conveying gas from the inlet 34 to the chamber 55. A tube 36 defining the inlet 34 telescopes within the tube 50 and includes a oneway flap valve 43. The heater housing is packed with insulation 59 which is anchored by buttons 60, and is frictionally received under the wall 44 defining the container. In an alternative embodiment a container (106), Fig. 8, (not shown) has cooling fins (126) and a water reservoir (114) with tubes (108, 110) for maintaining the water level in the container (106) constant. In another embodiment a container (112), Fig. 9, (not shown) has cooling fins (116a) and a pressure relief valve (138). An inlet tube (166), Fig. 10, (not shown) is integrally formed with a dispersion plate (172) which has a plurality of 3/64 inch diameter holes in concentric and radial lines, and strengthening ribs (174). The plate (174) supports water which is separated from the water in the chamber (188) below the plate (172) by an air gap (194). The components of the humidifiers may be made from a thermoplastics material which is stable up to at least 100‹F.
Patent GB-932897-A (GB)
Title: Polypropylene compositions
IPC: C08K5/098
Filed: 1961-11-24
Abstract: A dyeable composition comprises 80 to 95% of crystalline polypropylene and 20 to 5% of a soap, e.g. a salt of lauric, myristic, palmitic, stearic, oleic, ricinoleic or linoleic acid and Al, Cr, Cu, Ni, Co, Fe, Cd, Mn or Zn.  Silica or alumina also may be present.  The examples illustrate the spinning and drawing of fibres of such compositions, which are then dyed with disperse or basic dyes.  The fibres may be made into tufted loop pile carpets. Specification 905,895 is referred to.
Patent GB-1113883-A (GB)
Title: Improvements in or relating to electric waveform analysing apparatus
Inventor: RUSSELL ALEXANDER
IPC: H03K5/1532
Filed: 1964-10-15
Abstract: 1,113,883. Semi-conductor switching circuits. NATIONAL RESEARCH DEVELOPMENT CORPORATION. 7 Dec., 1965 [15 Oct., 1964; 12 Feb., 1965], Nos. 42149/64 and 6236/65. Heading H3T. [Also in Division G4] A signal analysing circuit gives a count of the total number of signal peaks, and a count of the number of such peaks which have occurred in each of a number of amplitude ranges. The circuit comprises a chain of tunnel diodes having different peak and valley values, which are successively switched from one state to the other, as the signal level varies. In one embodiment. Fig. 4, the rising flank of a waveform to be analysed sequentially switches tunnel diode chain Do to produce a train of output pulses at the collector of PNP transistor T1, the first pulse of the train switching bi -stable circuit TC to its SET state. The falling flank of a waveform sequentially resets the diode chain DS to produce a negative pulse train at the collector of NPN transistor T2. These pulses are inverted to produce a positive pulse train, the first pulse of which resets the bi-stable circuit, the output from which is fed to a counter. Instead of the bi-stable circuit being switched by the first of each train of pulses, counters (BC1, BC2), Fig. 5 (not shown), may be included in its set and reset circuits, so that switching occurs only after a predetermined number of pulses. In another embodiment, Fig. 7, the input signal to be analysed is applied directly to a first tunnel diode chain EF1, and via an inverter INV to a second chain EF2. As the input signal at 10, 11 rises the tunnel diodes in EF1 sequentially switch their state to produce a staircase output, which is differentiated to produce a pulse train the first of which sets a bistable circuit TC2. As the input signal falls a similar train of pulses is produced from EF2 the first of which resets the bi-stable circuit TC2, so that this circuit changes its state each time the signal passes through a peak. The " count pulse " output from TC2 is fed to a counter CT. The pulses from EF1 are also fed on line 40, Fig. 9, to a ring counter RGC having the same number of stages as there are tunnel diodes in the chain of EF1. Each time a peak occurs a " count pulse " signal is fed on line 41 to AND gates GA . . . GE, and an output is produced by the one of these gates receiving an input from counter RGC. to actuate an associated counter CA ... CE. The counter actuated thus corresponds to the amplitude range in which the peak occurs. The two chains EF1, EF2 are crosscoupled, so that the pulse train from one resets the other, gates 20, 21 being provided to inhibit false operation of the bi-stable circuit during reset. Circuit details of this embodiment are described with reference to Fig. 8 (not shown).
Patent GB-1222279-A (GB)
Title: Circuitry for sequentially energizing a plurality of loads
IPC: H02M1/06
Filed: 1968-09-05
Abstract: 1,222,279. Control systems for sequentially energizing loads. TOKAI RIKA DENKI SEISAKUSHO K.K. 5 Sept., 1968 [19 Sept., 1967], No. 42295/68. Heading H2H. [Also in Divisions G4-G6] A control system for sequentially energizing a plurality of electrical loads, such as lamps, relays or solenoids, and simultaneously deenergizing all the loads at a predetermined time after the last load has been energized comprises the circuit shown in the Figure, in which loads L1 . . . Ln (in this case lamps) are series-connected with respective silicon controlled rectifiers SCRI-1 ... SCRI-n across an A.C. supply and are interconnected with variable resistors, diodes and capacitors providing firing circuits to sequentially energize the rectifiers SCRI-2 ... SCRI-n at predetermined times after energization of the rectifier SCRI-1 by a control circuit II. This is effected by application of the A.C. potential to the circuit II, each stage of the load circuit I being given a time constant having a period longer than that of the A.C. supply. When the rectifier SCRI-n becomes conductive, gate current is applied to rectifier SCRII whose energization cuts off the gate current to rectifier SCRI-1 and so de-energizes the load circuit I. When the current through rectifier SCRII decreases below its holding value, this rectifier cuts off to allow subsequent energization of the rectifier SCRI-1 and repetition of the cycle previously described. The load circuit I may alternatively be controlled by a circuit III including a photoconductive element P, the arrangement being such that the rectifier SCRI-1 is energized when the intensity of illumination incident on the element P decreases below a predetermined value. A diode D III-2 in the circuit III ensures that the rectifier SCRI-1 is cut off when rectifier SCRII is energized, so that the above-described cycle of lamp operation continues for so long as the illumination intensity is below the predetermined value. The detailed functioning of the various circuit components is described.
Patent GB-949416-A (GB)
Title: Combination washing and drying machine
IPC: D06F39/08
Filed: 1961-11-28
Abstract: 949,416. Washing machines. GENERAL ELECTRIC CO. Nov. 28,1961 [Dec.14, 1960], No. 42417/61. Heading D1A. [Also in Division F4] In an automatically-controlled washing and drying machine, having a rotary drum 22 with a non-vertical axis, clothes which stick to a portion of the drum wall during spin-drying are partially unstuck by liquid introduced (e.g. through an outlet 58) with the drum 22 stationary, the other clothes being loosened by these clothes during a subsequent tumbling period. A second spin period may then be provided, followed by hot-air drying (using a blower 53 and heating element 51) at tumbling speed. During the second spin period, the clothes which were wetted (and unstuck) by the introduced liquid may stick to the wall again but they will be knocked loose during the second tumbling period by those clothes which they themselves knocked loose during the first tumbling period and which substantially do not stick to the wall during the second spin period. The drum 22, which is foraminous,the drum motor 34, &c., are rigidly secured on a platform 10 suspended from the top of the external frame by four coil springs 13, and supported from beneath by four cylinder and piston damping structures 18 each of which is connected to platform 10 and the external frame by universal joints 19,21. Different liquid inlets may be used for washing and partial unsticking.
Patent GB-1508669-A (GB)
Title: Methanoanthracene derivative and a process for the preparation thereof
IPC: C07C47/453
Filed: 1975-12-11
Abstract: 1508669 9 - Formyl - 9,10,dihydro - 9,10- methanoanthracene SUMITOMO CHEMICAL CO Ltd 11 Dec 1975 [13 Dec 1974] 42689/77 Divided out of 1508668 Heading C2C The novel title compound of Formula I is prepared by arrangement of a compound of Formula II which is also prepared from 9-isocyanato-12- acetoxy - 9,10 dihydro - 9, 10 - ethanoanthracene obtained on starting material.
Patent GB-1474306-A (GB)
Title: Method of forming a seam in a body outer panel of a vehicle
IPC: B62D25/04
Filed: 1975-10-20
Abstract: 1474306 Motor vehicle bodies TOYOTA JIDOSHA KOGYO KK 20 Oct 1975 [11 April 1975 43016/75 Heading B7B [Also in Division B3] In a seam formed in a body outer panel at a vehicle and comprising panel plates 2, 3 on opposite sides of the seam, the plates 2, 3 have respective end portions outwardly and inwardly offset and contacting the outside and inside surfaces of the main portions of the plates 3, 2, the plate 3 end portion is initially spot welded to the plate 2 at 3, a plate piece 10 overlying the inside surface of the main portion of the plate 3 is spot welded thereto at 11, and said plate piece 10, a transient portion of the plate 3, between the offset and main portions, and the plate 2 end portion are overlappingly spot welded together at 16. A bulged portion (17), formed at the spot welds 16 and consisting substantially of the displaced portion of the plate 2, is removed by grinding. To avoid depression of the outer surface, either the outer electrode effecting the spot welds 16 is provided with a large contact surface or, as shown, a bar 15 is interposed.