baber/WOPTO huggingface dataset:
Patent GB-1441313-A (GB)
Title: Screen units used for dewatering and classifying the contents of a liquid slurry
IPC: B01D29/00
Filed: 1973-10-16
Abstract: 1441313 Screening apparatus BAUER BROS CO 16 Oct 1973 [18 Oct 1972] 48089/73 Headings B1D and B2H  An apparatus for separating solids and/or liquids from slurries comprises a screen unit 29 pivotally mounted on a support frame 10, the screen unit being of trough-like form having a flow surface including portions 36, 37, 38 inclined at different angles to the horizontal and being pivotable between a rest position defined by stop means on the support wherein it provides a flow surface inclined to the horizontal and a screen cleaning or removing position whereupon the lower face of the screen is exposed. The screen may comprise a plurality of parallel, spaced, waved bars arranged in three mutually inclined sections 36, 37, 38 (each inclined about 5‹ to the next) and bordered by upstanding sides 30. Cross-bar 55 acts as a handle for the pivoting. The screen unit around pivots 46 mounted at its lower end and engaging in slots in the lower ends of the side panels 26 of the support. The pivots are received in holders 48 adjustable in the longitudinal direction of the screen. The support frame has a feed trough 20 from which the slurry is fed over an overflow lip 23 and an apron 24 to the screen. A chamber 26 is provided for the collection of filtrate. Sealing members 56, 57, 58 are fitted over the sides and end of the screen when in the filtering position. The apparatus is of use for the treatment of slurries containing sticky solid material, e.g. from meat packing, tanning or sewage treatment.
Patent GB-1141932-A (GB)
Title: Solenoid construction
Inventor: FLENTGE ROBERT WILLIAM
IPC: H01F7/16
Filed: 1966-10-28
Abstract: 1,141,932. Electromagnets. A. F. DORMEYER [trading as DORMEYER INDUSTRIES]. 28 Oct., 1966, No. 48513/66. Heading H1P. The plunger 13 of an electromagnet is slidable in a tube 10 of non-magnetic material one end of which is secured at 20 to a plug 11 formed with an integral radial flange 18 and the other end of which is received in a bore in a face plate 12 having a radial flange 23. The tube is flared at 22 to retain the face plate. The coil 14 is wound on the tube 10 between the flanges and is insulated therefrom by tape 24 and washers 25. When the coil is de-energized the plunger is withdrawn by a spring 39 acting between the face plate 12 and a collar 42 held on the end of the plunger by a retaining ring 43. A non-magnetic spring cover 45, which also acts as a plunger stop, is screwed to the face plate. The electromagnet is clamped to a mounting plate 30 by a nut 33 on the plug 11, and this plug also carries a cover 15 of magnetic material. In a modification (Fig. 5, not shown) the collar 42 is replaced by an integral flange (43A) on the end of the plunger. An alternative embodiment is described (Figs. 6-11, not shown) in which the plunger is withdrawn when the coil is energized and is extended by an external spring.
Patent GB-1179101-A (GB)
Title: Improvements in or relating to Domestic Shower Installations and Components thereof.
Inventor: MALTWOOD BRIAN EDWARD
IPC: E03C1/04
Filed: 1965-11-16
Abstract: 1,179,101. Shower installation. BARKING BRASSWARE CO. Ltd. 15 Feb., 1967 [16 Nov., 1965], No. 48607/65. Heading A4N. A domestic shower installation incorporates a pump in the water supply to the shower fitting to increase to a required value the pressure of the hot or cold water deliveries, or both, and means for bringing the pump into operation when a predetermined water delivery rate is reached. The pump may be operated by an electric motor which is controlled by a switch responsive to the pressure or flow of water. The pump 6 is operated by an electric motor (8) (Figs. 1 and 2, not shown) controlled by a switch having a float 12, enclosing a magnet 13, which rests in a restricted part of the pipe 14 adjoining a mixing chamber 3 which is supplied with hot and cold water by taps 16 and 17 such that the float is displaced by the initial flow of water, and reed switch 7 outside the water supply path. The switch may control a relay which in turn controls the motor or, preferably, a thermal delay relay is used to operate the relay controlling the motor.
Patent GB-1483484-A (GB)
Title: Linear thermoplastic polyesters and process for their manufacture
IPC: C08G63/80
Filed: 1974-11-12
Abstract: 1483484 Heterocyclic nitrogen containing polyesters CIBA-GEIGY AG 12 Nov 1974 [13 Nov 1973] 48837/74 Heading C3R A thermoplastic polyester is derived from an aromatic dicarboxylio acid containing 1 or 2 carboxy amide groups or 1 or 2 imide groups condensed to an aromatic radical or at least two carbocyclic groups with 4 to 6 members and a diol comprising a bis(hydroxyalkyl) compound containing 2 to 6 N,N-heterocyclic rings or 1 benzimidazolone ring. The polyesters may contain glass fibres or antimony trioxide. The examples describe the preparation of various polyesters, e.g. those derived from (a) p-(4- carboxybenzoyl)amino benzoic acid or N-trimellitic acid imide-p-benzoic acid ethyl ester, dimethyl terephthalate, ethylene glycol and 1,1 - methylene - bis - [3 - (2<SP>1</SP> - hydroxyethyl)- 5,5-dimethyl hydantoin] and (b) 4,4<SP>1</SP>-diphenylsulphone-dicarboxylic acid, dimethyl terephthalate, ethylene glycol and 1,3-di-(2-hydroxy ethyl)-tetrachloro-benzimidazolone.
Patent GB-1106442-A (GB)
Title: Spout construction
IPC: B22D35/04
Filed: 1966-11-01
Abstract: 1,106,442. Tundishes. F. W. PIERSON, and F. W. PIERSON Jun. 1 Nov., 1966 [5 Nov., 1965], No. 48944/66. Heading F4B. A spout 10 for pouring molten metal from a tundish comprises a tubular body portion 24 with a thickened end portion 26, and a plurality of lugs 30 extending downwardly from the upper portion 28 of the thickened end portion 26, so that with the bottoms of said lugs being coplanar and resting on the lining wall 16, the spout can be suspended with the tube portion 24 extending through the aperture 22. Before the top of the tubular portion 26 is cemented to the lining 18, the spout 10 can be rotated so that the lugs 30 can eject trapped dirt particles through the aperture 22. A copper tube through which coolant circulates may be coiled round the tundish walls.
Patent GB-1036239-A (GB)
Title: A process for introducing secondary amino-alkyl groups into cross-linked aromatic vinyl polymers
Inventor: CORTE HERBERT
IPC: B01J41/14
Filed: 1964-12-02
Abstract: Secondary amino-alkyl groups are introduced into cross-linked aromatic vinyl polymers by reacting the polymers, in the presence of a swelling agent and a Friedel-Crafts catalyst, with N-haloalkyl-N-alkyl- (or N-aralkyl-)acylamides to form the corresponding acylamido-alkyl derivatives and splitting off the acyl groups by hydrolysis.  The polymer may be a copolymer of styrene and divinylbenzene; of styrene, ethyl styrene and divinyl benzene; or of vinyl toluene, ethyl styrene and divinylbenzene. The acylamides may be of formula <FORM:1036239/C3/1> where X is a halogen atom, e.g. Cl, R3 is a divalent alkylene radical, e.g. -CH2-, R2 is an aliphatic or araliphatic radical and R1 is an acyl radical; and may be N-methyl-N-chloromethyl acetamide.  The swelling agent may be ethylene chloride and the Friedel-Crafts catalyst may be aluminium, stannic or zinc chlorides. The acyl groups may be hydrolysed using hydrochloric acid.  The polymers may be used in the OH form as anion exchangers.
Patent GB-1143255-A (GB)
Title: Vapour polishing
IPC: H01L21/306
Filed: 1966-11-02
Abstract: 1,143,255. Vapour polishing of IIIB-VB compounds. INTERNATIONAL BUSINESS MACHINES CORP. 2 Nov., 1966 [17 Nov., 1965], No. 49045/66. Heading C1A. The surface of a substrate of a III B -V B  compound is polished by exposing it at elevated temperatures to a flowing gas stream containing a hydrogen halide and the Group V B  element at a partial pressure sufficient to prevent dissociation of the compound. The substrate is then suitable for epitaxial deposition without removal from the site. The compound may be an arsenide, antimonide, or phosphide of Ga or In. Preferably GaAs is exposed to an atmosphere of H 2 +HI+As at a p.p. of 15-300 Torr, at a temperature from 1000‹ C. to the m.pt. of GaAs, e.g. 1100-1200‹ C. HI may be supplied from a tank, or generated by passing H 2  over heated I 2  and through a heated Pt bed. The mixture of HI and H 2  is then passed over a heated source of solid As. Alternatively, a decomposable compound of the Group V B  element may be used, e.g. AsH 3 , SbH 3 , or PH 3 . The substrate may previously have been mechanically or chemically polished. Its surface may be oriented in the (111), (211), (100) or (110) plane.
Patent GB-1021795-A (GB)
Title: Presses
Inventor: BEARD JACK HERBERT
IPC: B21J9/12
Filed: 1963-12-12
Abstract: 1,021,795. Forging presses; shearing. DAVY & UNITED ENGINEERING CO. Ltd. Dec. 8, 1964 [Dec. 12, 1963], No. 49110/63. Headings B3H and B3W. A forging press has a tool carrier 12 movable through the press centre, one of the tools being a knife 40, Fig. 2 (not shown). This is used for cutting a billet into two parts and is transported in a vertical slot 30 in a sheath member 29 on the tool carrier. The upper tool bolster 24 has slots 34 for receiving inward projections 36 on the knife body 38 when the latter is slid over the bolster. The press has a fixed lower bolster 10 and a movable frame 18, 20, 22 operated by an hydraulic ram 26. The press may be controlled as described in Specification 968,550.
Patent GB-1019446-A (GB)
Title: Improvements in or relating to rings
IPC: A44C9/00
Filed: 1964-12-04
Abstract: 1,019,446. Finger rings. K. KELLER and I. KELLER [trading as KELLER & CO. DIAMANTSCHLEIFEREI]. Dec. 4, 1964 [Dec. 5, 1963], No. 49409/64. Heading A3H. A finger ring has thickened portions forming shoulders 5 and 6 which maintain the ring in position on the finger without rotation thereon.
Patent GB-1091606-A (GB)
Title: Process for working up ores which contain tungsten
IPC: C22B34/36
Filed: 1964-12-04
Abstract: In producing alkali metal tungstate by alkali decomposition of tungsten containing ores while passing a direct current, the cathode is of nickel while the anode consists of stainless steel balls (5-40mm diameter) which also serve to crush the ore.ALSO:A process for the working of tungsten-containing ores by means of wet alkali decomposition of the ores and the processing in several stages of the alkali metal tungstate thus obtained is characterized in that an oxidation process, e.g. with hydrogen peroxide, is carried out before the said decomposition and in that the decomposition is effected while passing a direct electric current.  The decomposition may be effected while constantly grinding in a rotary kiln containing stainless steel of 5-40 mm. diameter which may act as anode.  The tungstate, e.g. of sodium, formed may be precipitated by addition of calcium nitrate and the calcium tungstate may be centrifuged and dried and then treated with conc. HCl (e.g. 7-9 N) in the presence of a metal catalyst, e.g. platinum, gold, tantalum, tungsten or metals which dissolve with evolution of hydrogen, e.g. zinc.  The tungstic acid is separated and dissolved in water by addition of gaseous ammonia to pH 12.  The solution is evaporated, centrifuged and washed with, say, alcohol or other hygroscopic liquid agents.  The ammonium paratungstate may be treated to form pure tungsten.
Patent GB-1466899-A (GB)
Title: Frequency synthesizer
IPC: H03L7/197
Filed: 1974-11-19
Abstract: 1466899 Frequency synthesizers DANA CORP 19 Nov 1974 [19 Nov 1973] 50134/74 Heading H3A A frequency synthesizer for producing an output frequency which is predetermined Nth multiple of a fraction of the reference frequency fr comprises an AFC loop including a controlled oscillator 15, a programmable divider 16, a frequency comparator 13 and a controller 14, a selector 17 including a counter 18 for setting the division ratio of divider 16 and a fixed divider 21 for dividing the oscillator 15 output to obtain a signal at the desired frequency fo = (N/K)fr. The output frequency can be incrementally varied by adjusting the value of N. The divider 16 has a binary input to which the output state of a counter 18 in BCD format may be applied for determining N. The counter 18 is made to count periodically up or down by the output of a ramp oscillator 19 applied via a manually controllable gate 20. In the AFC loop, an oscillator 15 is periodically keyed by circuit 14 so long as a frequency difference is detected at 13.
Patent GB-1436598-A (GB)
Title: Herbicidal triazines
IPC: C07D251/30
Filed: 1973-10-29
Abstract: 1436598 s-Triazine derivatives E I DU PONT DE NEMOURS & CO 29 Oct 1973 [30 Oct 1972] 50141/73 Addition to 1408601 Heading C2C Novel salts have the Formula I wherein R 1  is alkyl of 1 to 8 carbon atoms, cycloalkyl of 3 to 8 carbon atoms, cycloalkylalkyl of 4 to 7 carbon atoms, alkenyl of 3 or 4 carbon atoms, alkynyl of 3 or 4 carbon atoms, benzyl or where Y is hydrogen, halogen, alkyl of 1 to 4 carbon atoms, nitro, alkoxy of 1 to 4 carbon atoms, alkylthio of 1 to 4 carbon atoms, cyano or trifluoromethyl, and Z is hydrogen, halogen, methyl, ethyl, nitro, alkoxy of 1 to 4 carbon atoms, or alkylthio of 1 to 4 carbon atoms; and Q is hydrogen, halogen or methyl; R 2  is a cation of the formula where R 5 , R 6  and R 7  can be the same or different and each is hydrogen, alkyl of 1 to 4 carbon atoms, or hydroxyalkyl of 2 to 4 carbon atoms; and R 8  is hydrogen, alkyl of 1 to 12 carbon atoms, or benzyl; or when R 7  and R 8  are H, R 5  and R 6  can together form a ring containing the group -(CH 2 ) 2 -O-(CH 2 ) 2 - or -(CH 2 ) n - attached to the nitrogen atom where n is 4-6; R 3  is SR 4  or OR4 where R 4  is alkyl of 1 to 6 carbon atoms, cycloalkyl of 3 to 6 carbon atoms, alkenyl of 3 or 4 carbon atoms, alkynyl of 3 or 4 carbon atoms, or benzyl, and X 1  and X 2  are the same or different and each is oxygen or sulphur. The herbicidal salts are obtained from the corresponding triazines wherein R 2  is hydrogen by reaction with an amine of formula NR 5 R 6 R 7  or NR 5 R 6 R 8  or with an ammonium hydroxide of formula NR 5 R 6 R 7 R 8  OH. Examples describe the preparation of compounds of Formula I wherein X 1  and X 2  are oxygen atoms; R 1  is i-C 3 H 7 , p-chlorophenyl or 2 - methyl - 4 - chlorophenyl; R 3  is -OCH 3 , -OC 2 H 5 , or -S-CH 3  and R 2  is NH 4 <SP>+</SP>, CH 3 NH 3 <SP>+</SP>, C 2 H 5 NH 3 <SP>+</SP>, C 3 H 7 NH 3 <SP>+</SP>, C 4 H 9 NH 3 <SP>+</SP> HOCH 2 NH 3 <SP>+</SP>, C 6 H 5 CH 2 NH 3 <SP>+</SP>, (CH 3 ) 2 NH 2 <SP>+</SP>, (C 2 H 5 ) 2 NH 2 <SP>+</SP>, (C 4 H 9 ) 2 NH 2 +, (CH 3 ) 3 NH<SP>+</SP>, (C 2 H 5 ) 3 NH<SP>+</SP>, (HOCH 2 CH 2 ) 3 NH<SP>+</SP>, (C 2 H 5 ) 4 N<SP>+</SP>, (CH 3 ) 4 N<SP>+</SP>, C 12 H 25 N(CH 3 ) 3 <SP>+</SP>, C 6 H 5 CH 2 N(CH 3 ) 3 <SP>+</SP>, pyrrolidinium, piperidinium, morpholinium or hexahydroazepinium.
Patent GB-1171635-A (GB)
Title: Improvements in and relating to Sprinklers
Inventor: CRISP DAVID JOHN
IPC: B05B3/06
Filed: 1966-11-09
Abstract: 1,171,635. Rotary sprinklers. D. J. CRISP. 16 Jan., 1968 [9 Nov., 1966], No. 50265/66. Heading B2F. [Also in Division A1] A sprinkler, for lawns and fields, of the kind in which rotating jets are produced by the pressure of liquid comprises a rotatable head 6 having tubular arms 7 for conveying the liquid under pressure to sprinkler orifices 9 therein for rotating the head and having a hit and miss valve device whereby during rotation of the head the inner inlet ends of the tubular arms 7 come successively into and out of engagement with supply ports 5 in a bearing I for the rotatable head, the porting and the cooperation therewith of the said inlet ends being such that the maximum port pressure will be in the direction of lines intersecting the axis of the sprinkler at right angles to one another in order that an approximately square area shall be wetted and that at least one of the said inlet ends will be at least partially open to supply at any stationary position of the arms to enable rotation to be initiated. As shown in the Figure, the sprinkler preferably has four supply ports at 90‹ to one another and three tubular arms at 120‹ to one another Further smaller ports 13 may be included in the bearing member 1 and further smaller sprinkler orifices 10, 11 may be included. The rotatable member may include a further orifice adapted to produce a fan-like transverse jet to promote watering of the inner region of the area covered. Means for rendering the hit and miss valve inoperative so that an approximately circular area is covered may also be included.
Patent GB-1419763-A (GB)
Title: Gas burner blocks
IPC: F23D14/16
Filed: 1972-01-14
Abstract: 1419763 Burners FOSECO INTERNATIONAL Ltd 3 Jan 1973 [14 Jan 1972] 50718/74 Divided out of 1419762 Heading F4T A gas burner block comprises a block of porous ceramic material having a face 3 which is impermeable, a gas manifold for supplying gas to the body of the block, and a plurality of tubes 6 leading from an impermeable face 3 to the opposite face, the tubes having impermeable walls. In use gas is fed into the block to emerge at the face opposite the face 3 where it mingles with air coming through the tubes 6. The block is produced by the method described and claimed in Specification 1,419,762.
Patent GB-1010747-A (GB)
Title: Process for the production of shaped articles
Inventor: RUBENS LOUIS CHARLES
IPC: C08F259/04
Filed: 1963-05-16
Abstract: A polymerizable dispersion comprises a solid, finely divided polymer of vinyl chloride dispersed in a liquid medium comprising a major proportion of a monochlorostyrene.  The dispersion is shaped, to produce shaped articles, before the vinyl chloride particles have been substantially swelled or dissolved by the monomer, and subsequently subjected to polymerization conditions.  The vinyl chloride polymer may be the homopolymer or a copolymer of a major proportion of vinyl chloride with a minor proportion of another monoethylenically unsaturated monomer, a number of such comonomers being listed.  Polymerization may be induced by free radical catalysts, high energy radiation, or thermally.  The usual additives such as plasticizers, pigments, stabilizers, and fillers, including glass fibres, may be incorporated in the dispersion.  In an example polyvinyl chloride is dispersed in o-chlorostyrene containing a small amount of dicumyl peroxide, spread in a thin sheet between two platens and heat cured.
Patent GB-1093818-A (GB)
Title: Improvements in or relating to winking light direction indicator systems for automobiles and the like
IPC: B60Q1/38
Filed: 1964-12-14
Abstract: 1,093,818. Road traffic signals on vehicles. K. S. GOPALAN, K. G. RAMANATHAN and K. G. MOHANDAS. Dec. 14, 1964 [Dec. 26, 1963], No. 50769/64, Heading G4Q. Operation of a turn indicator switch 4 by day causes the side lights I or r on the appropriate side to flash in addition to the signal lamps L or R; at night the side lights light continuously, and signals are given by lamps L or R. In Fig, 2 the output of the flasher unit 2 may be connected by the switch 4 to either L or R which is in series with a relay coil 5 or 6. As the lamps flash the relay coil causes an armature 7 or 9 to open and close thereby flashing the lamps I or r. By night the lamps I or r are energized via switch 11 and are in series with coils m1 and m2 which operate armatures n1 and n2 to shortcircuit coils 5 and 6. Associated signal and side lights may comprise different filaments in the same lamp. Modified circuits, Figs. 3-5 (not shown), avoid the use of coils m1 and m2.
Patent GB-1280729-A (GB)
Title: Process of recovering ammonium sulphate from an aqueous solution containing ammonium sulphate and methionine
IPC: C01C1/24
Filed: 1969-10-17
Abstract: 1280729 Recovering ammonium sulphate STAMICARBON NV 17 Oct 1969 [19 Oct 1968] 51193/69 Heading C1A [Also in Division C2] Ammonium sulphate is recovered from an aqueous solution of ammonium sulphate and methionine by the addition of a water soluble monohydric alcohol to the solution so as to precipitate the ammonium sulphate, and after removing the ammonium sulphate, distilling the mother liquor so as to recover the alcohol in at least 70% concentration. The alcohol may be methanol, ethanol or isopropanol; a mixture of alcohols may be used. The temperature may be 20-75 C. and the pressure is suitably atmospheric pressure. The recovered alcohol may be used for further precipitation of ammonium sulphate from more starting material.
Patent GB-1471251-A (GB)
Title: High voltage capacitors
IPC: H01G2/14
Filed: 1974-11-04
Abstract: 1471251 Capacitors BICC Ltd 4 Nov 1974 [5 Nov 1973] 51295/73 Heading H1M A high voltage capacitor assembly comprises a plurality of series-connected wound capacitor elements formed from metallized plastics material, each element or group of such elements having associated therewith means for short-circuiting the element or group in response to over-voltage or excessive temperature. The capacitors, may be disposed in stacked plastics trays 2 (Fig. 2, not shown), and the protective device may comprise spring member 4 providing the series connection, arms 6, 7 of adjacent members 4 being biased together but prevented from electrical contact by intervening fusible insulating material, e.g. polythene sleeves 8, the thickness of which is sufficient to withstand the working voltage of the individual element or group, but such that breakdown occurs at excessively high voltages.
Patent GB-1145757-A (GB)
Title: A method for running-in engines
IPC: C10M125/00
Filed: 1966-11-16
Abstract: 1,145,757. Running-in engines. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 16 Nov., 1966 [18 Nov., 1965], No. 51298/66. Heading C5F. Engines having separate cylinder and crankshaft lubrication are run-in in an accelerated manner by lubricating the cylinders with a liquid comprising at least one lubricant and at least one compound of one or more of the metals aluminium, chromium, iron, cobalt, and manganese, said compound being one which under the conditions prevailing in the combustion chamber of the running engine is converted into an abrasive material. Extensive lists of potential abrasives are given which include carboxylates, hydroxy carboxylates, alkoxides, naphthenates, sulphonates, alkyl salicylates, acetylacetonates, chlorides, bromides, iodides, nitrates, sulphates, bisulphates, phosphates, carbonates, aluminates, chromates, dichromates, carbonyls, complex cyanides, manganates and permanganates, and double salts, e.g. alums. The running-in liquid may be an emulsion of an aqueous solution of the potential abrasive in a lubricating oil. Mineral lubricating oil is specified. Glycerol mono-oleate may be employed as the emulsifying agent.
Patent GB-1099638-A (GB)
Title: Improvements in or relating to easels
IPC: A47B97/08
Filed: 1965-12-06
Abstract: 1,099,638. Easels. F. T. MYERSON (SPA WORKS) Ltd. and G. R. SUTHERWOOD. Nov. 16, 1966 [Dec. 6, 1965], No. 51691/65. Heading A4H. An artist's easel comprises a support 11 pivoted to a base 10, two arms 12, 13 pivoted together and to the base and to the support 11 and a bolt 20 slidable in the arm 12 and adapted to engage notches 19 in the end of the other arm 13 to hold the support 11 in a selected angular position. The bolt 20 is a U-shaped strip 27 extending through apertures in a U-shaped bracket 25 welded to the end of the arm 12 and a pin 23 is secured between the legs of the strip 27 and passes through slots 24 in the arm 12. A spring (30) acts between a fixed bolt 31 on the arm 12 and the pin 23 to urge the latter into engagement with the notches 19. The support 11 comprises a V-sectioned strip 35 and an L-sectioned strip (36) welded to a channel section strip 34 to provide a slideway for two plates 39, 40 carrying transverse members 43, 44 each having two channels 47, 48 for two artists' canvasses. The two sliding plates 39, 40 can be clamped to the support by screws 42. The support can be pivoted to lie flat against the base 10 and can be held in this folded condition by the bolt 20 engaging one of the notches 19.