baber/WOPTO huggingface dataset:
Patent GB-1011630-A (GB)
Title: Improvements in or relating to devices for dressing v-shaped grinding wheels
IPC: B24B53/053
Filed: 1964-10-28
Abstract: 1,011,630. Grinding. POVAZSKE STROJABNE, NARODNI PODNIK. Oct. 28, 1964 [Nov. 11, 1963], No. 43943/64. Heading B3D. A device for dressing V-shaped grinding wheels 1 used for the working of glass products comprises two dressing rollers 4 which are adapted to be located one on each side of the cutting edge 2 of the grinding wheel and are carried by displaceable supports 10 movable along guides 13 arranged to form the same angle as the generatrices of the conical surfaces, the supports being connected by rods 14 with the arms 15 of a three-armed lever, the third arm of which is linked with the connecting rod 18 of a crank mechanism 19. The device is mounted on a base plate 5 having cut-outs 6 for the supports 10 which slide along the rods 13, the latter being adjustably mounted on the base plate by screw-and-nut mechanisms in arcuate slots 7 in the base plate. Each support adjustably clamps a rod 12 carrying the holder 11 of a dressing roller and is connected by a rod 14 to an arm 15 of the lever 16. As the lever is rocked by the crank mechanism 19 and rod 18, the supports 10 are moved along the guides for the rollers to dress the conical surfaces of the grinding wheel.
Patent GB-972715-A (GB)
Title: Improvements in rotary feeders for bulk material
Inventor: ALLEN ROBERT WILLIAM
IPC: B65G53/46
Filed: 1961-12-11
Abstract: 972,715. Pneumatic conveyers. HENRY SIMON Ltd. Nov. 26, 1962 [Dec. 11, 1961], No. 44176/61. Heading B8A. In a rotary feeder for bulk material in which radial vanes e, Fig. 1, carry spring-pressed sealing blades h, the range of radially outward movement of the blades h is limited by adjustable stop means to reduce the frictional wear on the casing. The vanes e, Fig. 3, are recessed to carry the blades h which are adjustably retained in position by cheese-headed studs g and urged radially outwardly by coil springs i mounted on the studs g. The outer edges of the blades h may be chamfered and may have undercut leading edges f which operate to strip adherent material from the housing.
Patent GB-1326783-A (GB)
Title: Coated fertilisers
IPC: C05G3/20
Filed: 1970-09-16
Abstract: 1326783 Coated urea RUHRCHEMIE AG 16 Sept 1970 [22 Sept 1969 18 April 1970] 44237/70 Heading C2C [Also in Division C1] Urea is coated with a protective layer of polyethylene having a molecular weight of 500 to 10,000, or of a mixture which comprises at least 70% by weight of the polyethylene, the remainder of the mixture consisting of one or more aliphatic primary amines having 6 to 24 carbon atoms in the molecule and/or one or more aliphatic secondary amines having 12 to 48 in the molecule and/or one or more aliphatic tertiary amines having 12 to 60 carbon atoms in the molecule and/or one or more copolymers of propylene oxide and ethylene oxide having molecular weights between 1800 and 10,000 and containing from 10 to 80% by weight ethylene oxide units, the protective layer being in direct contact with the fertilizer and the weight of the protective layer being from 0À02% to 0À5% of the weight. The polyethylene may have a melting point in the range 50-120 C. Primary amines which may be employed include stearylamine, cetylamine, mono-isotridecylamine and mono-isononylamine. Secondary amines which may be employed include n-propyl-isononylamine and di-isotridecylamine. Tertiary amines which may be employed include dimethylisotridecylamine.
Patent GB-929659-A (GB)
Title: Process and apparatus for hydrocarbon reforming
IPC: C01B3/38
Filed: 1960-12-23
Abstract: Hydrogen is produced by partial combustion and catalytic steam reforming of hydrocarbons in a multizone conversion process which comprises passing a mixture of steam and vaporous hydrocarbons through a succession of at least two conversion zones, each of said conversion zones including a gas mixing zone and a catalytic reforming zone containing a bed of reforming catalyst, introducing oxygen into each of said gas mixing zones, mixing reactants introduced into each of said gas mixing zones, injecting mixed reactants of each gas mixing zone into the corresponding catalytic reforming zone at a rapid rate to preclude any partial combustion outside of the bed of reforming catalyst, and maintaining each of said catalytic reforming zones at a maximum temperature between 2,000 DEG F. and 2,800 DEG F. and a minimum temperature between 1,100 DEG F. and 2,000 DEG F. by controlling the amount of oxygen introduced into each of said gas mixing zones and the volume of reforming catalyst in each of said beds of reforming catalyst.  The reactants are preferably preheated to a temperature between 600 DEG F. and 1,400 DEG F. before passage through the succession of conversion zones, and the conditions in the first zone are preferably such that after the first conversion the hydrocarbon concentration is less than 15% methane equivalent.  The bed of reforming catalyst in at least the first of the succession of conversion zones may comprise at least two reforming catalysts having differing reforming activity and being arranged so as to be contacted by the reactants in order of increasing reforming activity.  Reforming catalysts exemplified are nickel and cobalt and their oxides, chromia and molybdenum oxide, and the volume of reforming catalyst in the second bed is preferably about twice that in the first bed.  In a modification of the process an oxygennitrogen mixture is introduced to each of the gas mixing zones so that the final product is ammonia synthesis gas instead of hydrogen alone.
Patent GB-1124369-A (GB)
Title: Method of and apparatus for cleaning a pool
IPC: E04H4/16
Filed: 1966-10-06
Abstract: 1,124,369. Apparatus for cleaning swimming pools. SWIMQUIP Inc. 6 Oct., 1966 [22 Oct., 1965], No. 44759/66. Heading A4N. Interior wall and floor surfaces of swimming pools containing liquid are cleaned by successively and intermittently maintaining individual ones of a plurality of jet streams of liquid in different fixed angular directions from a position at said wall or floor surface, to move the dirt and keep it in suspension in the pool liquid, and filtering the liquid in the pool to remove the dirt from the pool. A first jet stream of liquid may be maintained in a fixed direction for a period of time from a position adjacent the surface and directed along the surface and a second jet stream may successively be maintained for a period of time from said position in a fixed direction angularly different from the direction of the first stream. In this manner, a jet stream projector may be made to emit jet streams successively and intermittently in a plurality of fixed directions. Alternatively, a plurality of jet stream can be maintained for a period of time in fixed directions from different positions at a wall or floor surface of a pool and said jet streams may be operated successively and intermittently so that at least one of the jet streams is maintained on while another is maintained off. One of the devices producing jet streams is conveniently situated immediately above a drain which contains conduit means for drawing liquid out of the pool. The liquid in the pool is also conveniently circulated by means of liquid emitted into the pool at a wall thereof in a direction laterally along said wall, so that some of the circulating liquid may be skimmed off at the liquid surface, thus removing dirt from the pool.
Patent GB-1213834-A (GB)
Title: System for automatic transmission and reception of repetitive programs
IPC: H04B5/00
Filed: 1968-09-20
Abstract: 1,213,834. Radio signalling. NEWSRAD Inc. 20 Sept., 1968 [28 Sept., 1967], No. 44793/68. Heading H4L. A repetitive programme intended for passengers on an aircraft, to be heard as they approach a stopping place, is broadcast on a super-audio frequency sub-carrier (e.g. 41 or 67 kc./s.) by a suitable local F.M. normal broadcasting station. The repetitive programme may be recorded on an endless magnetic tape and may comprise a start tone (e.g. 77 c/s.) for 2 seconds, introductory chimes for 3 seconds, news bulletins and other programme material, concluding chimes for 3 seconds, and a stop tone (e.g. 67 c/s.) for 2 seconds (Fig. 3, not shown). An F.M. tuner 58, Fig. 4, is controlled by a channel selector 66 in a remote unit 68, and its subcarrier output is amplified and demodulated in a unit 76. The audio output is fed through an amplifier 82, an H.P. filter 152, an adjustable attenuator 156, a normally open contact of a relay RLY-4, and a power amplifier 166 to loudspeakers 170, 170A &c. The H.P. filter 152 cuts off signals below about 100 c/s., including the control signals. The audio output of the unit 76 is also fed through a normally open contact of a relay RLY-1 to the parallelled inputs of two amplifiers 98, 100 which are tuned respectively to the start and stop tones. The unit 76 also provides an output at sub carrier frequency, which is fed through an amplifier 174, and a rectifier 178 to the coil of a relay RLY-2. When the aircraft is near the transmitting station the relay RLY-2 is operated and an " in-range " indicator 192 is energized through one of its contacts, whilst a circuit is prepared for the operation of the relay RLY-1 through the other of its contacts. When a start switch 282 is subsequently depressed, the relay RLY-1 is operated, and is held by the closure of one of its contacts. A " start " indicator 200 is energized through a second contact, and the audio output of the unit 76 is connected to the amplifiers 98, 180 through a third contact. When the start tone is received, output from the amplifier 98 operates a sharply tuned filter 104, comprising a reed 108, so that input is applied to an amplifier 112. Output from the amplifier 112 is rectified and causes momentary operation of a relay RLY-4, which is held by the closure of one if its contacts, another contact completing the circuit for operation of the loudspeakers, so that the programme material is heard. Other contacts of the relay RLY-4 respectively complete a circuit for the energization of an " operate " indicator 270, and prepare a circuit for the operation of a relay RLY-3. When the stop tone is received the relay RLY-3 is momentarily operated by output from the amplifier 100 fed through a tuned filter 126, an amplifier 136, and a rectifier 140. The opening of two normally closed contacts of the relay RLY-3 respectively restores the relays RLY-1 and RLY-4, and the power amplifier 166 is disconnected.
Patent GB-1255516-A (GB)
Title: Preparation of c10-c11 polymethylbenzenes
IPC: C07C2/86
Filed: 1969-09-17
Abstract: 1,255,516. C 10 -C 11  polymethylbenzenes. SUN OIL CO. 17 Sept., 1969 [20 Sept., 1968; 30 Dec., 1968; 20 Aug., 1969], No. 45777/69. Heading C5E. A process for preparing tetramethylbenzenes from a polymethyl benzene feed having an average of 8-9À5 carbon atoms comprises:- (a) contacting the feed at 200-325‹F. with CH 3 Cl and with an AlCl 3  catalyst in amount 0À2-3 mole per cent of the feed to give mainly tetramethylbenzenes with substantial proportions of C 11 -C 12  polymethylbenzenes; (b) discontinuing the contact with CH 3 Cl but continuing the contact with the catalyst at 200- 325‹ F. until a substantial decrease in C 11 -C 12  product has occurred and (c) recovering tetramethylbenzene in higher yield than would be obtainable from step (a) above. When pentamethylbenzenes are the required product step (a) is continued longer to give a polymethylbenzene having 10-10À7 carbon atoms and step (b) decreases the C 12  content and increases the C 11  : C 12  ratio. Examples describe the production of durene, isodurene and prehnitene, isodurene being recycled to step (a). The catalyst may be a pre-formed liquid complex of AlCl 3 , HCl and polymethylbenzene
Patent GB-974542-A (GB)
Title: Liquefaction of gases
Inventor: SEDDON WILLIAM LESLIE
IPC: F25J1/02
Filed: 1962-12-04
Abstract: 974,542. Liquefaction of gases.. PETROCARBON DEVELOPMENTS Ltd. Dec. 4, 1962, No. 45789/62. Addition to 912,478. Heading F4P. The method of cooling a compressed gas stream to below 70‹ K. in a plurality of inclined heat exchangers in series traversed by a separate stream of the gas after expansion in a turbine as claimed in the parent Specification, is modified in that helium is used as the coolant gas. Hydrogen is liquefied by passing it at 10 atmospheres pressure through an ammoniacooled exchanger 53, a nitrogen-cooled exchanger 53, a nitrogen-cooled exchanger 54 where its. temperature is reduced to 70‹ K. and further cooling is effected in exchangers 55, 56, 57 in series and wet hydrogen at 22‹ K. is expanded at a valve 58 into a container 59; each of the exchangers 55, 56, 57 being cooled by a countercurrent flow of helium cooled by expansion at an associated turbine 55b, 56b, 57b at a pressure of 7 atmospheres. The helium circuits are fed in parallel from a common discharge line of a turbine 61 and exhaust into a second common line passing through an exchanger 60 serving to precool helium entering turbine 22. Also feed helium to turbines 56b, 57b is cooled in exchangers 56a, 57a traversed by helium leaving the warm ends of exchangers 56, 57. In a modification wherein helium is liquefied the expanded helium-cooled exchangers 43-47, Fig. 1 (not shown), are additionally cooled by return flow of unliquefied helium leaving the expansion valve 49.
Patent GB-1280382-A (GB)
Title: Hydraulic axial piston machines
IPC: F04B1/24
Filed: 1970-09-30
Abstract: 1280382 Fluid bearings CONSTANTIN RAUCH 30 Sept 1970 [17 Oct 1969] 46611/70 Heading F2A [Also in Division F1] In an axial piston pump (see Division F1), a rotating drive flange 20 is supported against bearing surface 27 on member 13 by a fluid bearing formed by recesses 18 supplied with liquid under pressure from the pump working chambers, the sloping walls of the chambers subtending acute angles with surface 27 to provide hydrodynamic action.
Patent GB-1040319-A (GB)
Title: Windshield wiper arm
IPC: B60S1/34
Filed: 1963-11-26
Abstract: 1,040,319. Windscreen wipers. ANDERSON CO. Nov. 26, 1963 [Feb. 4, 1963], No. 46626/63. Heading A4F. In a windscreen wiper which comprises an arm 14 pivotally connected to a head 20, an elongated torsion bar 26, the outer end 28 of which is fixed in position in the flattened end 14<SP>1</SP> of the arm 14 and the inner end 34 of which is bent substantially at right angles to bear against the head 20, biases the arm 14 against a windscreen when the head 20 is mounted on a wiper drive shaft. The bias against the windscreen is produced by preloading the torsion bar 26 by twisting the inner end 34 counter-clockwise as viewed in Fig. 5 before assembly of the arm 14 and the head 20. The end portion 34 is held in position bearing against the head 20 by a spherical bearing 36 which is contained in seats 40 located at the rear of head 20. In another embodiment, Fig. 7 (not shown), the arm is pivoted in a bifurcated head and the portion 134 bears on a roller 136 mounted in a cylindrical recess in the head. In a further embodiment, Fig. 10 (not shown), two torsion bars are provided, the portions 234<SP>1</SP> and 234<SP>11</SP> bearing on opposite sides of the head. A worm and wheel arrangement, Fig. 18 (not shown), may be provided at the outer end of the torsion bar to allow the torque on the torsion bar to be varied. In the embodiment of Fig. 10 means are provided whereby the parking position of the wiper arm may be adjusted over a small range.
Patent GB-1498817-A (GB)
Title: Electrodes for electrolytic processes
IPC: C25B11/04
Filed: 1974-10-29
Abstract: 1498817 Oxide coated electrolysis electrodes MARSTON EXCELSIOR Ltd 20 Oct 1975 [29 Oct 1974 14 Feb 1975] 46710/74 and 6393/75 Heading C7B An electrode is prepared by anodically coating a substrate surface of Ta, Ti, Hf, Nb, Zr, an alloy thereof, Pb or Ni with at least two layers of TiO 2  from a bath containing Ti ions (e.g. from Ti 2  (SO 4/3 ) at least the first layer being heated at 100-800‹C before further coating, and then applying at least one conductive layer of Pt group metal and/or oxide. This last layer may also include a valve metal oxide and is applied from a solution of thermally decomposable compound(s) followed by heating. Additional layers include; a primer of fibrous or angular Zr oxide which may include a Pt metal (oxide); a Pt metal (oxide) applied to the substrate and/or between successive TiO 2  layers; layer(s) applied at any stage of finely divided oxide of Ti, Zr, Nb, Si or a mixed oxide e.g. a garnet or spinel; and a final coat of Ta oxide applied thermochemically. The finely divided oxide may be applied in an acrylic polymer carrier which is subsequently fired off. The substrate may include wire, mesh or plate forms, and is degreased and etched in oxalic or sulphuric acid before coating. Recoating of the active layer may be effected without affecting the TiO 2  layers, any calcareous deposits being removed in HNO 3 .
Patent GB-1254626-A (GB)
Title: New 19-hydroxy-3-aza-a-homo-steroids and a process for their manufacture
IPC: C07J75/00
Filed: 1969-09-23
Abstract: 1,254,626. 3 - Aza - A - homo - steroids. CIBA-GEIGY A.G. 23 Sept., 1969 [27 Sept., 1968 (2)], No. 46832/69. Headings C2C and C2U.  Novel 3-aza-A-homo-steroids of the formula where a double bond may be present in the 4a, 5- or 5,6-position (in which case the 5-H will be absent), B 1  is H or C 1-5  alkanoyl, OR 2  is a free, esterified or etherified hydroxy group, and R 3  is a free or ketalized oxo group or a (#-positioned free, esterified or etherified hydroxy group together with H or with a C 1-6  aliphatic hydrocarbon radical, or an α-positioned hydrogen atom or free, esterified or etherified hydroxyl group together with an acetyl or hydroxy: acetyl group, or an α-positioned hydrogen atom together with a 1<SP>1</SP>,5<SP>1</SP>-dimethylhexyl group, are prepared by reacting steroids of the formula (where a #<SP>4</SP>- or #<SP>5</SP>-double bond may be present, one of R<SP>1</SP> and R<SP>11</SP> is oxo and the other is H 2  and R 2  and R 3  are as defined above but R 3  does not contain a free oxo group) with NH 2 OH or a salt thereof, the resulting oxime is subjected to Beckmann rearrangement and the free oxo group and, if desired,. a double bond (if present) is or are reduced. In the products an esterified or etherified OH group or a ketalized oxo group may be hydrolysed, a free OH group may be esterified, etherified or oxidized, an oxo group may be reduced and the aza group may be acylated. In the Beckmann rearrangement products, unwanted 2-aza and 4-aza products are removed by chromatography after acylation. 2 - Oxo - 17 - ethylenedioxy - 19 - triphenylmethoxy-#5-10α-androstene is prepared from 2- oxo - 17# - acetoxy - #<SP>5</SP>- 10α -androstene via the corresponding 2α - ol, 2α,19 - oxido - 17# - acet-. oxy - 19 - oxo - #<SP>5</SP> - 10α - androstene, the corresponding free 17#-ol, the corresponding 17-one, the ethylene ketal of the last-named, 2α,19-dihydroxy - 17 - ethylenedioxy - #<SP>5</SP> - 10α - androstene and the 19-triphenylmethyl ether of this compound. 2 - Oxo - 17 - ethylenedioxy - 19 - triphenylmethoxy-5α.,10α-androstane is prepared from 2α- hydroxy - 17# - acetoxy - #<SP>5</SP> - 10α - androstene via 2α - hydroxy 17# - acetoxy - 5α,10α - androstane, 2α,19 - oxido - 17#- acetoxy - 19 - oxo- 5α,10α-androstane, the corresponding 17#-ol, 17- one and 17-ethylene ketal, 2α,19-dihydroxy-17-  ethylenedioxy-5α,10α.-androstane and the 19-triphenylmethyl ether of the last-named. The new 3-aza-A-homo-steroids act strongly on the central nervous system in a manner similar to that of the salamander alkaloids and also have a strong local anaesthetic activity. They may be made up into pharmaceutical and veterinary compositions with suitable carriers.
Patent GB-1097109-A (GB)
Title: Pharmaceutical compositions for inhibiting the growth of neoplasia and the use thereof
IPC: C07D519/04
Filed: 1965-11-05
Abstract: Pharmaceutical compositions for inhibiting the growth of neoplasia contain at least one alkaloid selected from conodurine, conoduramine and voacorine and/or at least one non-toxic salt thereof.  Dosage units for oral administration may contain 10 to 90% by weight of active ingredients combined with solid pulverulent carriers and lubricants to form tablets or dragee cores.  Aqueous, optionally buffered, isotonic solutions of salts and aqueous dispersions of the bases are used for parenteral administration.  The active substances may also be combined with a neutral fatty basis to form suppositories or contained in gelatin capsules.  Salts specified are those formed with the following acids:-hydrochloric, hydrobromic, sulphuric, phosphoric, methane sulphonic, ethane disulphonic, b -hydroxyethane sulphonic, camphor sulphonic, acetic, lactic, succinic, tartaric, citric, benzoic, salicylic, embonic, phenylacetic and mandelic acids.
Patent GB-1096571-A (GB)
Title: Process and apparatus for welding plastic materials
IPC: B29C65/00
Filed: 1964-11-19
Abstract: 1,096,571. Thermoplastic containers. V. FLAX. Nov. 19, 1964 [Nov. 21, 1963; Feb. 28, 1964; May 8, 1964; Oct. 22, 1964], No. 47150/64. Heading B8D. [Also in Division B5] Two parts of thermoplastic material are welded together by pressing the parts together and holding one of the parts stationary whilst the other is rapidly rotated until sufficient frictional heat has been generated to produce local fusion of the thermoplastic material and then discontinuing the rotation of the second part, whilst maintaining the pressure between the parts so that the parts become welded together. In one embodiment, Fig. 1, to join a cap or neck 7 to a tube 8, the cap 7 is placed on a double-frusto-conical head 5 of a rotary mandrel 1 coupled to a driving member (not shown) and is centred by a boss 6 forming an extension of the head 5. The tube 8 is threaded on to a fixed tubular sleeve 2 surrounding the mandrel 1 to contact a fixed but adjustable abutment 19. A pressure member (not shown), e.g. an hydraulic jack, is set into motion to bring a socket 3, preferably made of nylon, closer to the fitment comprising the mandrel 1 and the sleeve 2 so that a lip 17 is formed on the tube 8 and is pressed against the cap 7. The mandrel 1 is then rotated so that the cap 7 is rotated and friction is set up between the external periphery of the cap 7 and the lip 17. As shown, grooves 10 are provided in the bearing surface 9 of the head 5 to facilitate gripping the cap 7. The sleeve 2 is formed with a collar 12 and is shaped to leave a continuous passage 14 between the head 5 and the sleeve 2 to enable any particles torn away during welding to be discharged to a chimney 15. The socket 3, which is fixed against rotation, has an annular channel 22 so that a bead is formed at the junction between the lip 17 and the collar of the cap 7 and has a metal ring 23 around the neck thereof. In one embodiment of the cap 7, Fig. 2 (not shown), projecting ribs 24 are formed on the internal face of the collar 7.1 thereof. The ribs 24 may be continuous or discontinuous. The ring 23 projects into an annular channel 26 of triangular cross-section provided around the threaded neck of the cap 7. In a second embodiment of the cap 7, Figs. 3 and 4 (both not shown), a projecting annular shoulder 31 is formed on the face 25 of the cap and the ribs 24 either terminate on each side of the shoulder or are extended on to the shoulder.