baber/WOPTO huggingface dataset:
Patent GB-1116912-A (GB)
Title: Improvements in or relating to selective calling systems
Inventor: BROWN THOMAS THEODORE
IPC: H04W24/06
Filed: 1965-10-21
Abstract: 1,116,912. Testing radio calling equipment. MARCONI CO. Ltd. 26 July, 1966 [21 Oct., 1965], No. 44558/65. Heading H4L. In a selective calling arrangement of the type in which a plurality of resonant devices at a receiver are selectively responsive to predetermined frequencies within a predetermined range of frequencies, a warning being given when all the devices have responded, testing means are provided at the receiver for applying to the devices oscillations which are swept over said frequency range and for actuating the warning means when all devices have responded. Calling system.-As shown, when a receiver R receives the appropriate calling tone combination for the receiver, e.g. one pair of tones transmitted for 1 second followed after a pause of “ second by a second pair of tones, resonant reeds A5, A6 vibrate, followed by reeds A7, A8, causing charges to be built up in associated integrating circuits A9 to A12. These integrating circuits are connected via normally non-conducting transistors A13 to A16 and an inverter I to a normally conductive transistor C1 After a predetermined interval the voltage across the integrating circuits is sufficient to cut off transistor C1 and a relay C2 operates an alarm, e.g. a flashing light C3. This remains actuated until a switch C4 is operated. Testing.-Operation of ganged switches S1, S2 applies a frequency-swept signal to reed energizing coils A1 to A4, this signal being generated by a unijunction transistor relaxation oscillator D1 which is frequency modulated by a second relaxation oscillator D5, D8 via a transistor D4 acting as a variable impedance in the charging circuit of capacitor D2. However, there is insufficient build-up of voltage for the circuit to operate as for calling and the following additional circuitry is required. Transistors A13 to A16 are rendered conductive and trigger corresponding silicon controlled rectifiers B1 to B4. Diodes B5 to B8 are associated with corresponding S.C.R.'s and form a coincidence circuit so that when the S.C.R.'s are all condutive the transistor C1 is cut off and the alarm operated as before.
Patent GB-1487933-A (GB)
Title: Superconductive electric cable and cooling apparatus therefor
IPC: H01B12/16
Filed: 1974-10-15
Abstract: 1487933 Cooling cables SIEMENS AG 15 Oct 1974 [24 Oct 1973] 44677/74 Heading H2C [Also in Division H1] At either end of an electric cable having inner 2 and outer 3 superconductors is a terminal portion with inner 7 and outer 8 normal conductors connected to the respective superconductors, the cable being provided with a first cooling passage through the inner superconductor, a second cooling passage around the outer superconductor and further, separate cooling passages for the inner and outer normal conductors. The first cooling passage may also pass through the inner normal conductors. The first and second cooling passages are supplied with the coolant, e.g. liquid or cold gaseous He or H from a first refrigeration unit 12, and the further cooling passages, which are preferably in the form of a bath so that vaporization of the coolant provides a temperature transition, are supplied from a second refrigeration unit 33. Since the inner conductors will be at high potential, voltage transition elements 29, 30, 35, 40 are provided in the respective cooling paths, the paths being indicated by broken lines. Valves 16, 36, 38, 39 are controlled by temperature sensors, e.g. 45, 46 to maintain the temperatures of the inner and outer conductors constant. The signals from the sensor 45 have to pass via transducers 49 to overcome the potential drop. The coolant return line 25 may be situated about a radiation shield (not shown).
Patent GB-931700-A (GB)
Title: Capacitors comprising ceramic dielectric bodies
IPC: H01G4/12
Filed: 1960-12-30
Abstract: In a capacitor comprising a solid dielectric body and electrodes, the dielectric body is produced by firing in an oxidizing atmosphere a mixture of barium titanate containing 0,3% to 1,0% TiO2 in excess of the theorectical amount and not more than 1% of cerium oxide, and the dielectric body has a dielectric constant, at 25 DEG C. and a frequency of 1 megacycle per second, of at least 1900, preferably from 1900 to 2500, and a deviation in dielectric constant between 15 DEG C. and 85 DEG C. from the value at 25 DEG C. of less than 4,5%, preferably less than 2%. According to an example, a mixture of 99,25 parts of finely divided barium titanate (Ba TiO3) containing 0,46% TiO2 in excess of the theoretical amount and 0,75 parts of powdered cerium oxide (CeO2) was wet-milled, dried at 120 DEG C. and then screened.  The screened product was pressed to a disc in a mould at 10,000 pounds per square inch pressure.  The disc was fired in an oxidizing atmosphere containing water vapour at a temperature of about 255 DEG F. for two hours.  After the disc had cooled, silver electrodes were form on its flat faces by applying silver paste and refiring the disc for 30 minutes at 1500 DEG F.  In further examples dielectric bodies containing 0,8, 0,9, 0,95 and 1,0% cerium oxide were produced.  The electrical properties of the bodies are graphically depicted in Figs. 1 to 3 (not shown).  The capacitors may be employed in band-pass filter circuits used to separate the individual channels in mult-channel telephony, in fixed tuned intermediate frequency amplifier circuits of the type used in superheterodyne radio receivers and in resistance-capacitance frequency determining circuits.
Patent GB-1355998-A (GB)
Title: Builders for detergent compositions
IPC: C08B37/00
Filed: 1971-09-28
Abstract: 1355998 Polysaccharide ester salts UNILEVER Ltd 28 Sept 1971 [30 Sept 1970] 45161/71 Headings C3U and C3F [Also in Division C5] In a detergent composition comprising at least one conventional detergent active agent. there is included in amounts of up to 90% of total weight a polysaccharide detergency builder which is a polysaccharide ester salt having the general formula wherein A is -COOM or -CH 2 OR ; R is hydrogen or a carboxylate ester moiety of the formula M is an alkali metal, ammonium or substituted ammonium (specified) cation; X is orthophenylene, -CH 2 -O-CH 2 -, a linear or branched chain alkylene or alkenylene group of 2-3 carbon atoms, or an addition compound thereof when X is an alkylene group; and n is an integer of from 100 to 5000. Polysaccharides: starches, exemplified by corn, potato, rice, arrowroot, tapioca, wheat and sago starches, cellulose, glycogen, dextrans, di- and trisaccharides such as sucrose, maltose, lactose, cellulose and raffinose, oligo saccharides, polyuronic acids such as pectin and alginic acid, and natural gums such as arabic and acacia. Modified polysaccharides such as hydrolysed starch can also be used. Anhydrides: maleic, succinic, phthalic, glutaric, adipic, citraconic, itaconic and diglycolic anhydrides. One preferred class of compounds is the bisulphite addition product of a polysaccharide ester salt derived from starch, cellulose or sucrose and maleic anhydride having a D.S. value of at least 0À5. The detergent active agents may be anionic, non- ionic, zwitterionic and amphoteric compounds (specified). The other ingredients of the detergent composition including, if desired, other detergency builders, and its physical form are conventional. The examples disclose detergent compositions containing specified detergent active agents, sodium silicate as an anticorrosive agent and the following polysaccharide ester salts: sodium corn starch maleate, phthalate or succinate, disodium corn starch sulphosuccinate, sodium tapioca starch succinate, sodium cellulose succinate and sodium sucrose succinate.
Patent GB-946916-A (GB)
Title: Liquid phase ammoxidation process
IPC: C07C255/49
Filed: 1962-11-29
Abstract: Aromatic nitriles are obtained by treating a methyl-substituted aromatic hydrocarbon with ammonia and molecular oxygen at 115-260 DEG C. in the liquid phase in the presence of a manganese bromide catalyst, the proportion of ammonia being 0.1-2 mols. per mol of oxygen.  Specified aromatic hydrocarbons which may be treated are toluene, the xylenes, hemimellitene, pseudocumene, mesitylene, prehnitene, durene, isodurene, pentamethylbenzene, ethyltoluenes, cymenes and t-butyl-toluenes, and reference is made also to the treatment of methyl derivatives of naphthalene, biphenyl, terphenyl and phenanthracene.  The catalyst may be taken as such or formed in situ, e.g. from a manganese carboxylate and ammonium bromide or from metallic manganese or manganese oxide and hydrobromic acid. Diminution of the activity of the catalyst may be prevented or counteracted by addition of ammonium bromide to the reaction mixture, optionally in small portions at intervals. The reaction may be effected in the presence or absence of a solvent. Benzonitrile is the preferred solvent, but others are specified also.  Examples are given in which (1) toluene yields benzonitrile, (2) m-xylene yields m-tolunitrile and isophthalonitrile, with some m-cyanobenzamide and ammonium m-cyanobenzoate; the yield of isophthalonitrile may be raised by vaporizing the product in the presence of ammonia and passing it at about 400 DEG C. over activated alumina; (3) m-tolunitrile yields isophthalonitrile, with some m-cyanobenzamide and ammonium m-cyanobenzoate; (4) o-xylene yields o-tolunitrile and phthalimide.
Patent GB-1357272-A (GB)
Title: Clutch pressure plate assembly
IPC: F16D13/71
Filed: 1972-10-02
Abstract: 1357272 Friction clutches DAIKIN SEISAKUSHO KK 2 Oct 1972 [1 Oct 1971] 45323/72 Heading F2C In a friction clutch wherein a diaphragm spring 2 is fulcummed between split rings 6, 7 encircling studs 5 riveted to a clutch cover 4, the ring 6 between the diaphragm spring 2 and clutch cover 4 engages a groove 4b in the cover. The groove 4b has a discontinuity (4e) which prevents rotation of the ring 6 relative to the cover 4. Rotation of the other ring 7 is prevented by axially extending projections 7a on the end of the ring engaging with recesses 2c in the diaphragm spring.
Patent GB-1224088-A (GB)
Title: Improved automatic release drive carriage for power and free conveyor system
Inventor: BIRKHEAD FRANK G
IPC: B61B10/02
Filed: 1969-09-15
Abstract: 1,224,088. Power and free conveyers. HEWITT-ROBINS Inc. 15 Sept., 1969 [16 Sept., 1968], No. 45345/69. Heading B7L. A power and free conveyer comprises side-byside tubular tracks 10, 12, the track 10 having therewithin a power-driven conveyer chain 20 and the track 12 therewithin wheeled carriages 36 supporting depending carriers 34, the said carriers being propelled by drive carriages 28 depending from chain 20 which consist of an elongate frame 44 mounting a drive dog 54 with drive arms 54a, 54b, 54c, one of the arms being always in a position to engage a projecting rod 42 of a carrier 34, with another arm engaging a spring-loaded pivotable arm 62 which prevents the dog rotating under normal drive conditions, but which is rotated against the spring 64 when the carrier 34 is stopped at a station by the dog to disengage the drive cam from the rod 42. Hold-back members 70 prevent the carriers 34 over-running the carriages 28 on a downward sloping track section. On upward sloping track sections a locking plate 74 is rotated about a vertical axis so that a projection 74a thereof is positioned to prevent the arm 62 from being pivoted against the action of spring 64 by the weight of carrier 34 and thereby prevent an accidental uncoupling. At the end of the upward section the plate 74 is rotated back into its rest position. The plate 74 is moved by rods 84 clamped to the track 10.
Patent GB-1121855-A (GB)
Title: Improvements in or relating to power transmission devices
Inventor: MIRACKI ZDISLAV STANSILAV
IPC: F16D3/10
Filed: 1964-11-09
Abstract: 1,121,855. Shaft couplings. SIMMS MOTOR UNITS Ltd. 3 Nov., 1965 [9 Nov., 1964], No. 45553/64. Heading F2U. Driving and driven shafts 13, 14 are circumferentially adjustably connected by a hollow transmission shaft 19 having helically splined engagement of opposite hand therewith. Play in the spline connections is taken up by a prestressed torsion bar 24 having toothed engagement with rings 27, 29 which engage the helical splines of the driving and driven shafts. The torsion bar 24 together with its rings and the transmission shaft 19 are urged leftwards by a spring 32 and are adjusted to the right, to determine the angular adjustment of the shafts 13, 14, by a piston 35 subject to input speed responsive hydraulic pressure. The shaft 14 may drive a fuel injection pump, the arrangement providing automatic advance of the fuel injection timing in dependence upon the engine speed.
Patent GB-920568-A (GB)
Title: Improvements in or relating to devices for drawing or painting particularly on non-planar surfaces
IPC: B28B11/00
Filed: 1961-12-20
Abstract: In a device for drawing or painting on nonplanar surfaces such as the surfaces of vases and pots, mutually parallel colour-carriers are detachably mounted on helical springs which are mounted on pins in a handle.  The pins may be displaceably mounted on a guide rod attached to the handle so that their relative spacing may be varied.  A wedge between adjacent springs may be used to vary the spacing whilst in use.  The colour-carriers may be pencils, crayons or brushes and may be screwed into the ends of the springs.
Patent GB-1280892-A (GB)
Title: Method of evaporating heat sensitive liquids
Inventor: ANTONELLI PETER
IPC: A23G3/32
Filed: 1969-09-17
Abstract: 1280892 Toffee TULLAMORE SA 21 Aug 1970 [17 Sept 1969] 45741/69 Heading A2B [Also in Division B1] Toffee is produced by pumping a mixture of sucrose, glucose, non-fat milk solids, fat, salt and water, at a temperature of about 180‹F., into a nest of fifty-five horizontal tubes surrounded by a jacket supplied with heating-steam at 100 psi. The tubes have a diameter of 3/16 of an inch and a length of 3 feet. The mixture foams and flows through each tube in less than 1 second, the exit temperature being about 260‹F. The tubes may be made of glass, stainless steel or copper. The tubes may be provided with direct electrical heating.
Patent GB-1090363-A (GB)
Title: Powerful sound impulse generator methods and apparatus
IPC: G01V1/137
Filed: 1964-11-10
Abstract: 1,090,363. Generating seismic impulses. BOLT ASSOCIATES Inc. Nov. 10, 1964 [Nov. 12, 1963], No. 45839/64. Heading H4D. A seismic sound source 70 (Fig. 2) comprises cylindrical means 94 in which high-pressure (2000 p.s.i.) air, introduced under the control of an electromagnetically operated valve 63 via a port 90, is confined by a closure member 100 comprising two rigidly connected pistons 98, 99 the area of 99 being greater than that of 98 so that member 100 is retained in the position shown until the firing instant at which the introduction of pressure air at the upper surface of piston 99 via valve 61 and port 92 overcomes the retaining force with the result that member 100 accelerates rapidly in a downward direction over a distance E after which, with continued downward movement, piston 98 " uncovers " vent means 96 through which the high-pressure air escapes to create the seismic sound. Pressure air is then introduced via valve 62 and a guide member 87 into the space 140 to return member 100 to its initial position. The three valves are controlled by cam-operated switches 58, 59, 60 the switch 58 being also arranged to provide a reference mark on a recorder in a shipborne under-water seismic surveying system as described with reference to Fig. 1 (not shown). The construction of the sound source 70 is described in detail with reference to Figs. 5 to 8 (not shown). In a modification of the arrangement of Fig. 2 the cam-controlled valve 62 is omitted and pressure air for returning member 100 to its initial positions is continuously supplied via a pressure-regulating valve 145 (Fig. 3, not shown). In a further arrangement the piston closure member is returned to its initial position by pressure air continuously admitted to an additional chamber 148 (Figs. 4, 9 and 10, not shown) such air also charging the cylinder 94 via the bore 153 and firing of the device to release the charge in 94 via vents 96 is then effected by admitting pressure air to the upper surface of piston 99 via valve 61. The operating pressure in the latter arrangement may be increased by the addition of an oil fuel injection and ignition means in either cylinder 94 or 148 (Figs. 12 and 13, not shown). The effective volume of the cylinder 94 may be varied by auxiliary piston means (Figs. 14 and 15, not shown) and by appropriate proportioning of the effective areas of the two pistons the embodiments of Figs. 4, 9, 10 and 13 to 16 may be made self-firing. In the embodiments of Figs. 2, 3, 5 and 14 the cylinder 94 may be filled with pressure air via an opening 270 (Fig. 16, not shown) in the member 100 thus enabling the fill port and its associated valve to be omitted.
Patent GB-1039126-A (GB)
Title: Improvements in joints between structural members
Inventor: BROADBENT BEAUMONT HOLIDAY
IPC: E04B1/21
Filed: 1963-11-21
Abstract: 1,039,126. Structural joints. JOHN LAING RESEARCH & DEVELOPMENT Ltd. Jan. 11, 1965 [Nov. 21, 1963], No. 45964/63. Heading E1V. A joint between structural members 11, 10 comprises a co-acting male formation 16, 17 and female formation 12, 13 on the respective members, load-bearing metal register plates 15, 14 adjacent the male and female formations on the respective members, and grout or quick setting jointing compound which may comprise synthetic resin adhesives, which initially is introduced into the female formation and some of which is displaced on introduction of the male formation to spread between at least some of the coacting surfaces of the joint. The position of the members transversely of the plane of the joint may be adjusted by shims introduced between the plates 14, 15, Figs. 1, 3, 4 and 5 (not shown) or by mounting the plate 14 on a screwed thimble 21 which may be rotated to adjust the position of the plate 14 in said transverse direction. The projecting dowel 17, which forms part of the male formation may be formed by projecting reinforcement of a reinforced concrete member, and the recess 13 of the female member may be a sleeve carried by reinforcement. The plates 14, 15 may be welded to reinforcement. The invention described relates to connections between two superimposed columns or a column and beam. When the connection between two superimposed columns is at floor level, the jointing compound may be displaced into the gap between the columns and floor slab, Figs. 4 and 5 (not shown).
Patent GB-1535578-A (GB)
Title: Thread or litter picker material
IPC: A46D1/00
Filed: 1976-11-09
Abstract: 1535578 Vacuum cleaner nozzles H WESSEL 9 Nov 1976 [11 Nov 1975] 46535/76 Heading A4F [Also in Division B2] A material for use in combination with vacuum cleaner nozzles for picking up foreign matter comprises a carrier material flocked with polyamide fibres, e.g. nylon 66 fibres, 2À0-2À7 mm long at a density of 200-300 gm/sq metre and the fibre thickness being 30-50 Tex. The flocking may be applied obliquely to the carrier material.
Patent GB-1501260-A (GB)
Title: Cutter bar harvesting platform
IPC: A01D41/14
Filed: 1975-11-12
Abstract: 1501260 Cutter bar harvesting platform DEERE & CO 12 Nov 1975 [13 Nov 1974] 46742/75-Heading A1F A harvesting platform 22 for a mobile harvester comprises a frame 24 having sides 30, a feed table 34 spanning the sides and a cutter bar 80 supported forwardly of the table 34 by a plurality of mounting devices 49 which are rockably mounted beneath the feed table, adjustment means 58 being provided that operate between the table and each mounting device to set the angle that each mounting device makes relative to the frame and hence to adjust the angle that the cutter makes relative to the ground. The feed table 34 has a rigid rear portion 36 and a rigid forward portion 38 interconnected by a flexible portion 40. Each mounting device 49 comprises a channel shaped support 50. a channel shaped arm 62 carrying the cutter bar 80 and slidable within the support 50 and, thirdly, a skid 66. The support 50 is rigidly attached to the front table portion 38 and has pins 52 projecting from opposite sides into slots 54 provided in gusset plate 48 rigid with the rear table portion 36. The rear end of the support 50 carries a bracket 56 having a bolt 58 which also passes through a threaded hole in a rod 60 which is rigid with and passes through the gusset plates 48. Rotation of the bolt 58, due to the flexibility of the table portion 40; causes the "tilt angle" of each mounting member and hence the cutter bar to be adjusted. Five spaced bolt holes 70 in each support 50 and three bolt holes 72 and 73 in each arm 62 and skid 66, respectively, allow the position of the arm relative to the feed table to be adjusted to cope with different crop conditions. A sealing plate 84 bridges the gap between the cutter bar and feed table. The cutting knife 86 is reciprocated by a wobbletype drive mounted at one end of the cutter bar and driven by a tensioned belt drive 96. Specification 1501259 is referred to
Patent GB-1271800-A (GB)
Title: Ignition switches
Inventor: THORNLEY DEREK
IPC: H01H19/58
Filed: 1968-10-04
Abstract: 1,271,800. Mechanical switches; retractive switches; cam-operated switches JOSEPH LUCAS (INDUSTRIES) Ltd. 24 Sept., 1969 [4 Oct., 1968], No. 47190/68. Heading H1N. An ignition switch, for use in combination with key operated steering column locks for road vehicles, comprises a casing 11 including a base 13, fixed contacts 29, 31, 32, 33 and 34, Fig. 3 (not shown), on base 13, a rotor 14, a movable contact plate 21 rotatable with rotor 14, and movable contacts 22, 23, 24, 25, Fig. 3 (not shown), on contact plate 21, the movable contacts being engageable with certain of the fixed contacts in predetermined angular positions of rotor 14 to complete electrical circuits between certain of the fixed contacts. The movable contact plate 21 is urged towards base 13 so that the movable contacts engage base 13, and co-operating camming means 26, 27, 30 are provided on contact plate 21 and base 13 which are operable in certain angular positions of rotor 14 to move at least part of contact plate 21 away from base 13 to prevent completion of electrical circuits between certain of the fixed contacts which, in the absence of the camming means, would be completed by contact plate 21. As shown, movable contact plate 21 is made flexible by split 28. Part of plate 21 is moved away from base 13 either by tilting or by flexure. A diagrammatic representation of the positions of the initial contacts is given in Fig. 3 (not shown). Detent means (not shown) are provided between rotor 14 and casing 11 to define the rotor positions. In the first position (Fig. 3a) the steermg column is locked and only the hazard warning light circuit is completed. In the second position (Fig. 3b) the hazard warning circuit is broken and the accessories circuit is completed while the steering column is unlocked. In the third position (Fig. 3c) all the electric circuits controlled by the switch are broken with the steering column unlocked. In the fourth position (Fig. 3d) the steering column is unlocked and the ignition and accessory circuits are completed. In the fifth position (Fig. 3e) the ignition and starter motor circuits are completed and the steering column is unlocked. The detent means does not retain the rotor in its fifth position and on release the rotor is spring urged back to ist forth position. The switch includes a latch (not shown) which when the switch has been moved from its fourth to its fifth position and then back again prevents the switch being moved again to its fifth position without first being returned to its third position. When the switch is to be used in a vehicle equipped with an alternator, base 13 carries further fixed contacts 35, 36, Fig. 3 (not shown), in the alternator field winding circuit which are bridged by piece 37 in the fourth position of the switch.