baber/WOPTO huggingface dataset:
Patent GB-1140205-A (GB)
Title: Process for the purification of aliphatic dinitriles
Inventor: FOLEY FRANCIS
Filed: 1965-07-26
Abstract: 1,140,205. Purification of dinitriles. IMPERIAL CHEMICAL INDUSTRIES Ltd. 27 June, 1966 [26 July, 1965; 18 March, 1966] Nos. 31777/65 and 11990/66. Heading C2C. Aliphatic dinitriles are purified by contacting a solution of them in a non-polar or feebly polar organic liquid with expanded urea to form a complex of urea with at least one aliphatic nitrile and regenerating urea from the said complex by contacting it with a non-polar or feebly polar organic liquid under conditions whereby said complex is decomposed into its constituents. The reaction may be effected (a) such that the dinitrile being purified forms a complex with the urea, or (b) such that the impurities complex with the urea leaving the dinitrile to pass on in the solvent from which it may be extracted, or (c) in a two-stage process in which impurities are complexed with a first batch of urea and the dinitrile solution then passes on to be contacted with a second batch of urea which complexes with the dinitrile. The urea complexing step is suitably effected at 15-20‹ C. and the complex decomposition step is suitably effected at 40-80‹ C., specified solvents being toluene, benzene, xylenes, petroleum spirits, carbon tetrachloride. chloroform, chlorobenzene or chlorotoluenes. The expanded urea may be formed by passing a non-polar or feebly polar organic liquid at elevated temperature through a complex of urea with an aliphatic dinitrile, such complex having been previously formed in a polar solvent, and it may be mixed with an inert supporting material. The examples relate to the purification of adiponitrile.
Patent GB-689317-A (GB)
Title: Improvements relating to looms for weaving
IPC: D03D45/20
Filed: 1949-12-12
Abstract: 689,317. Automatic bobbin-changing looms; weft cutting. FROMEL, O. Dec. 11, 1950 [Dec. 12, 19491, No. 31805/49. Class 142(iii) When a weft-feeler indicates that weft replenishment is necessary, a transfer shaft is turned, a bunter raised for engagement with the slay, and weft cutters at the selvedge and near the shuttle eye are opened. The transfer shaft 10 is turned by the engagement of a notched member with the weft hammer when a new bobbin is required, and a lever 11 thereon moves a part 12. A member 18 on the part 12 carries a roller 19 and is also moved and allows a bunter 21, pivoted on a lever 22, to be lowered into the path of an abutment on the slay. When the bunter is moved by the slay, the lever 22 pivots and the transferrer 28 thereon pushes the lowermost -bobbin into the shuttle, the exhausted bobbin being pushed out of the bottom of the shuttle. Displacement of the part 12 also causes a rod 24 thereon to turn a lever 16 carrying a weft cutter 30, a rod 32 pivoted at 34 to a fixed part of the loom opening the jaws. The jaws cut the weft as the lever 16 returns to its initial position. The shaft 10 also carries a lever 36, Fig. 10, which, when the shaft turns, moves a member 37 carrying a rod 40. The rod 40 displaces a bar 42 covering the shuttle-eye weft cutter. A step 45 on the movable blade 43 engages a stop 47 and holds the blades open until the slay, during its forward movement, strikes an extension 46 and closes the blades and returns the cutter to its initial position. This cutter holds the cut end. The transfer hammer is in two parts and can yield if it meets an obstruction. The magazine can also yield, and has a spring to retain the lowermost bobbin.
Patent GB-1095730-A (GB)
Title: A method of and a device for purifying waste gases
IPC: C22B21/06
Filed: 1966-07-15
Abstract: 1,095,730. Disposal of corrosive waste gases; absorption of hydrogen chloride and chlorine; purification of aluminium. KREBS & CO. Ltd. July 15, 1966 [July 16, 1965], No. 31825/66. Headings BIB and B1L. In a method of removing hydrogen from molten aluminium by passing chlorine gas through pipe 12 into the melt 2 in a crucible, the waste gas, comprising aluminium chloride, hydrogen chloride and, possibly, chlorine, is safely disposed of by conducting the gas through a heated pipe 16 into a downpipe 19 where the gas is contacted with a downflowing film of liquid which condenses and absonbs the aluminium chloride, and absorbs some of the hydrogen chloride. The condenser liquid, e.g. water or an aqueous slightly alkaline solution, is supplied to distributor cup 21 through pressure-line 22. The cylindrical wall 25 joined to the end of pipe 16 dips in the liquid in cup 22 whereby a liquid seal is formed between pipe 16 and the top of pipe 19. By this means the melt-crucible and pipe 16 may be tilted without breaking the connection with downpipe 19. The liquid reaching the foot of pipe 19 collects in reservoir 26. The residual gas flows up packed column 27 where it is washed by a countercurrent flow of liquid, supplied from line 22 through valve 30, in order to remove hydrogen chloride and entrained solid particles from the gas. The gas leaving the top of column 27 is drawn into jet suction device 31 which is operated by propellant liquid supplied from line 22 through valve 32. Chlorine is absorbed from the gas into the liquid in jet device 32, which discharges the residual gas and the liquid into reservoir 34. The residual gas is partly recycled to the jet device through lines 37 and 38, and the remainder is discharged to the atmosphere. Some of the liquid in reservoir 34 is discharged through siphon 35, and some of it is pumped back to line 22 through non- return valve 42.
Patent GB-364719-A (GB)
Title: Improvements in or relating to variable speed gears
IPC: F16H1/08
Filed: 1930-10-24
Abstract: 364,719. Toothed gearing. ROVER CO., Ltd. and SEARLE, F., Meteor Works, Coventry. Oct. 24, 1930, No. 31944. [Class 80 (i).] In double helical gearing the teeth are inclined at an angle of from 32-40‹, the teeth of one series being staggered relatively to those of the other. Reference has been directed by the Comptroller to Specification 334,668, [Class 80 (i), Gearing, Belt, &c.].
Patent GB-466117-A (GB)
Title: Improvements in or relating to moulding machines for glassware or other articles made from molten material which sets on cooling
Filed: 1935-11-20
Abstract: 466,117. Making glass bottles. PEARSON, T. F. Nov. 20, 1935, No. 32102. [Class 56] In a machine foi forming bottles, jars, or other glassware, a pair of opposed mould halves or carrier sections 10, 11 are connected to levers 16, 17 pivoted at 18, 19 and pivotally connected at 22, 23 to links 24, 25 pivoted to a cross-head 28, such that displacement of the crosshead moves the mould sections 10, 11 slidably and rectilinearly along a support 12. The arrangement is such that the cross-head and links 24, 25 are locked in line, the cross-head and the axes of the links lying in a common plane, when the mould is closed with the levers 16, 17 at an acute angle to the links, but when the mould is opened, the links 24, 25 form obtuse angles both with the crosshead and with the levers 16, 17. Lugs 13, 14 on the sections 10, 11 have a pin-and-slot, lost-motion connection with the levers 16, 17. The lengths of the links 24, 25 are adjustable. The cross-head 28 is connected by a rod 29 to a roller 30 engaged by resilient means with a cam so that the cross-head is displaced in a direction at right angles to that wherein the sections 10, 11 move.
Patent GB-654170-A (GB)
Title: Improvements in telecommunication systems
IPC: H04Q3/00
Filed: 1947-12-05
Abstract: 654,170. Automatic exchange systems. STANDARD TELEPHONES & CABLES, Ltd. Dec. 5, 1947, No. 32116. Convention date, July 24, 1942. [Class 40 (iv)] In a telephone system providing alternative routeing facilities, both the exchange digits (or a translation) and the numerical digits of a subscriber's designation are transferred from register to register in succeeding exchanges as far as the penultimate exchange which transfers to the final exchange only the numerical digits. Translation of the exchange digits is necessary when the call is for a satellite. As each exchange is taken into the connection a taking- over signal from the register in the preceding exchange determines whether the call is to be routed to a local selector or to a register and a further exchange. As shown, the system may comprise three exchanges C1, C2, C3. When a subscriber A1 at C1 makes a local call, selection is made by a preselector P1 and group selectors S1, S11, S12. When A1 calls A2 in exchange C2, the selector S1 seizes a register E1 which records the number dialled and steers the call to the exchange C2 through selectors Z11, Z12. Direct route. If a direct route is seized by Z11 the cell is extended to a preselector P21. A taking over signal from E1 causes P21 to hunt for a free group selector S21 whereupon the call is completed over selectors S21, S22 by digits transmitted from the register E1.  Indirect route. If the call is routed from C1 to C3 the preselector P31 responds to the taking over signal by hunting for a free register E3 which controls the extension of the call from C3 to C2 as described for a direct call. The two taking over signals may differ in duration. Calls to be extended through an exchange may be identified by a signal of eleven impulses transmitted by the register in the preceding exchange.
Patent GB-144570-A (GB)
Title: Improvements in and relating to self driving air engines
IPC: F03G7/10
Filed: 1919-12-23
Abstract: 144,570. Ricketts, S. J. Dec. 23, 1919. No Patent granted (Sealing fee not paid). Self-d r i v i n g plants.-A reservoir of air a is connected to an engine c and the exhaust from the engine is led back tc the reservoir through a pump e on the engine-shaft. An air-pump g and driver j are connected to the reservoir.
Patent GB-485864-A (GB)
Title: Improvements in or relating to apparatus for cutting fabric
IPC: D06H7/24
Filed: 1936-11-25
Abstract: 485,864. Cutting fabric into pieces. GUYLER, A. F., and BOALER, W. H. Nov. 25, 1936, No. 32288. [Class 31 (i)] Fabric 3 is cut transversely into pieces having non-parallel edges by a pair of co-operating cutters 16, 17 positioned alternately in two positions at an angle to each other. A gripper member 27 is carried by the cutter 17 and a co-operating spring- pressed gripper member 33 is supported in a frame 18 to hold the fabric stationary during cutting ; a hopper 37 receives accumulated fabric. The cutters are carried by the frame 18 which after each cutting operation is rocked about a pin 19 by mechanism including an adjustable crank pin 24 and a connecting rod 25. The cutter 16 is fixed to the frame 18 while the cutter 17 is connected thereto by parallel links so that when it is moved laterally by a pin engaging a slot 39 in a reciprocating plate 38 it is swung towards the fixed cutter 16 ; a device comprising an eccentric 50 turned by a rack 54 and pinion 52 and a free-wheel device is provided to compensate for the rocking of the frame 18. Tubular fabric is fed from a roll 4 over a spreader 13 carrying fixed blades 15 which slit it into two webs and thence between feed rolls 8, 9 to the cutters 16, 17.
Patent GB-910968-A (GB)
Title: Improvements in and relating to variable pitch mixed-flow pumps
Inventor: DERIAZ PAUL
IPC: F04D15/00
Filed: 1959-09-23
Abstract: 910,968. Centrifugal pumps. ENGLISH ELECTRIC CO. Ltd. Sept. 21, 1960 [Sept. 23, 1959], No. 32343/59. Class 110 (1). In a variable-pitch mixed-flow pump having main runner vanes 2 pivotally mounted in the runner 3 with their axes converging at a common point on the pump axis, a booster stage of runner vanes 22 is arranged upstream of the main runner vanes 2. The vanes 22 raise the local pressure at the leading edges of the main vanes 2 sufficiently to prevent cavitation without requiring deep submergence of the pump and may be fixed or, as shown, may be of adjustable pitch. As shown, the adjustment may be effected by the same rotatable control shaft 15 that effects adjustment of the pitch of the main vanes 2. Alter. natively, a separate control shaft inside the shaft 15 may be used. An arm 10 keyed to the trunnion of each main vane 2 is slotted to engage a slider block 11 carried by a pivot 12. The pivots 12 are carried by a ring 18 attached to the shaft 15, the axes of the pivots 12 converging at the same point as the axes of the main vanes 2. A similar arrangement is used for the adjustment of the vanes 22. The pump may handle liquid sodium, which may act as a lubricant for the trunnions of the adjustable vanes. Reference has been directed by the Comptroller to Specification 752,068.
Patent GB-1159646-A (GB)
Title: N-(2-Alkenyl)-Azabicyclo-Octanes and Nonanes
IPC: C07D295/03
Filed: 1967-07-13
Abstract: 1,159,646. Therapeutic and moth proofing agents. UPJOHN CO. 13 July, 1967 [28 July, 1966], No. 32355/67. Headings A5B and A5E [Also in Division C2] Compounds effective as mothproofing agents are the fluosilicic acid salts of compounds of the formula where n is 0 or 1 and R is a C 3-5  2-alkenyl group. Therapeutic compositions effective as diuretics, pseudocholinesterase inhibiting agents, bactericides, cholesterol lowering agents, coccidiostats and anorexic agents comprise compounds of the above formula where n and R are as defined above or their acid addition salts with inorganic or organic acids in combination with pharmaceutical carriers, excipients, solvents or vehicles for administration as tablets, powders, capsules or as solutions or suspensions for oral or parenteral administration.
Patent GB-537379-A (GB)
Title: Improvements in thermic syphons for locomotive type fireboxes
IPC: F22B13/14
Filed: 1939-12-18
Abstract: 537,379. Water chambers in steam boiler fireboxes. BARKER, G G. (Locomotive Firebox Co.). Dec. 18, 1939, No. 32412. [Class 123 (ii)] In a locomotive firebox having longitudinal flat water chambers 31 opening into the'top and bottom water spaces, to ensure a rigid firebox crown sheet 12, each chamber has two elongated outlet openings 35; 36 separated by a part 42 of the crown sheet which is stayed to the top 16 of the shell.
Patent GB-603272-A (GB)
Title: Improvements in yokes for animals
IPC: A01K1/062
Filed: 1945-11-30
Abstract: 603.272. Animal stalls; yokes. SMITH. M. B., HANCOCK, A., and AGRICULTURAL SUPPLIES (CAMBRIDGE), Ltd. Nov. 30, 1945, No. 32421. [Class 20(i)] Yokes for animals, e.g. to tether cows to cowstalls, comprise two parts pivoted together, one part having a catch comprising a pair of arms spring urged apart and the other part having a jaw converging to a latching surface so that when the yoke is to be closed the arms of the catch enter the jaw and are closed together until reaching the latching surface, whereupon the spring snaps the arms apart into locking engagement with the latching surface. The yoke part 2 pivoted at 3 to the other yoke part 1 has a catch comprising a pair of arms 9, Fig. 4, pivoted at the head of the yoke part 2 and urged apart by a spring 16. The arms have latch end 12 and lugs 15 for manual actuation. On closing the yoke, the latch ends 12 are received in a bell mouth 18, Fig. 4, on a hatching device secured to the yoke part 1. At the inner end of the bell mouth 18, the arms 9 of the catch are sprung outwardly to force the latch ends into slots 19 in the latching device, thereby locking the two yoke parts together. The width of the yoke is adjustable by couplings 22.
Patent GB-492937-A (GB)
Title: Improvements in or relating to refrigerating evaporators, particularly for cooling air
IPC: F25B39/02
Filed: 1937-11-25
Abstract: 492,937. Refrigerating. TAUER, E. Nov. 25, 1937, No. 32503. [Class 29] An evaporator particularly adapted for cooling air comprises a pair of bellows chambers separated by a plate 19, the condensed refrigerant being admitted to the chambers alternately through valves 4, 6 and the pressure of expansion serving to move piston members 30, carried by the plate 19, to discharge the vapour back to a compressor and condenser through end conduits 39a. The bellows chambers consist of coned discs 20, Fig. 5, secured together with inner and outer heat exchange fins 22 in channel rings 21. These rings are fluted at the side faces to allow passage of vapour past them inside the chamber when the chamber is collapsed and to allow moisture condensed from the air on the outside surfaces to flow out. In the position of parts shown in Fig. 1, refrigerant supplied through pipe 2 flows through open valve 6 to ports 14 in a base-plate 16 and enters the lower chamber. As the plate 19 is raised by the vapour pressure, the vapour from the upper chamber flows through port 31<1> and passage 31 in the lower piston and past valve 32 in the piston head to the end of the cylinder 26, from which it is discharged through a valve 38 at the reverse stroke of the piston. A tappet rod 33 releases valve 6 and opens valve 4 as the plate 19 rises, and the weight of parts is balanced by a counterweight 56.
Patent GB-512381-A (GB)
Title: Improvements in or relating to the heels of footwear
IPC: A43B21/433
Filed: 1938-11-09
Abstract: 512,381. Heel protectors. NIEDWOROK, P. Nov. 9, 1938, No. 32578. Convention date, June 20. [A Specification was laid open to inspection under Sect. 91 of the Acts, May 10, 1939.] [Class 17 (iii)] A heel top lift a has a recess b open towards the back in which is secured in a reversible renewable manner by adhesive, a tip d whose thickness is equal to the depth of the recess b. Before fitting the tip d into position, the contacting faces of the tip and recess are coated with adhesive which is allowed to become practically dry. Interengaging projections and recesses k, i maintain the tip and recess in correct relative positions. When it is desired to remove the tip, it may be prised from the recess by a knife.
Patent GB-1437213-A (GB)
Title: Ski-ing practice structures
IPC: A63B69/18
Filed: 1973-07-09
Abstract: 1437213 Ski-ing practice structure SORBO LEISURE SURFACES Ltd 8 July 1974 [9 July 1973] 32661/73 Heading A6D A ski-ing practice structure comprises a support frame assembly 4 carrying a ski-ing surface 5; the assembly being slidably located at the upper end in channels 2 by means of pins 3 (which may incorporate rollers) so that the assembly together with ski-ing surface may be moved between a storing position in which the ski-ing surface is parallel to the channels and a position for use such as that shown. Rollers 6 fixed to the lower edge of the assembly contact the ground, and support pins 8 may be engaged in any of the vertically spaced holes 7 in the channels to provide for variation in the inclination setting.
Patent GB-218482-A (GB)
Title: Improvements in domestic washing machines
IPC: D06F37/10
Filed: 1923-08-22
Abstract: 218,482. Entwisle & Kenyon, Ltd., and Redfearn, J. P. Aug. 22, 1923. Washing-machines with enclosed rotary receptacles.-The lid B of the rotary drum A is beaded and wired along its side b<1> so that the beading may take into a recess a<3>, the edge of which is also beaded and wired at a<1> and is of complementary form, arranged along one edge of the aperture in the drum in order to form a loose hinge. The opposite edges a<2>, b<2> of the aperture and lid are also beaded and wired, and the lid is fastened by toggle fastenings each comprising a bracket e<1> fixed to the lid and carrying pivotally a spring link e<2> to the free end of which is pivoted an arm e<4> with a tongue e<3> adapted to take in a groove e formed in a bracket E<2> fixed to the drum. When the arm e<4> is turned into the position shown the edges a<2>, b<2> are forced together and the lid is held firmly against flanges d on the end-plates of the drum.
Patent GB-1378407-A (GB)
Title: Method of producing a tertiary phosphate
IPC: B01J27/18
Filed: 1972-07-13
Abstract: 1378407 Group II tertiary phosphate; calcium phosphate VSESOJUZNY NAUCHNOISSLEDOVATELSKY INSTITUT NEFTEKHIMICHESKIKH PROTSESSOV "VNIINEFTEKHIM" 13 July 1972 32723/72 Heading C1A [Also in Division C5] A tertiary phosphate of a Group II metal is prepared by reacting an aqueous solution of a Group II metal salt (e.g. calcium chloride solution), and an aqueous solution of a phosphoric acid salt (e.g. sodium ammonium phosphate), at a temperature not greater than 25‹ C. in the presence of ammonia in an amount exceeding by 20 to 50% the molar amount of ammonia which would react with the molar amount phosphate ions present in the tertiary phosphate. The so formed phosphate may be filtered, washed, granulated and dried at a temperature from 18‹ to 22‹ C. and used as a catalyst to split 4,4-dimethyl-I,3-dionone into isoprene.
Patent GB-281487-A (GB)
Title: Improvements relating to brake mechanism for rolling stock
IPC: B61H1/00
Filed: 1926-12-28
Abstract: 281,487. Electro-Mechanical Brake Co., Ltd., Williamson, J. H., Catlin, L. A., and Cadbury, G. N. Dec. 28, 1926. Blocks and shoes; force-transmitting mechanism.-To avoid the jarning noise or vibration of the brake shoes of railway &c. vehicles set up when the shoes are applied and caused by play in the pivots of the links by which the shoes are suspended the force which brings the shoes into action is arranged to set up a force which resists this vibration. The beam a which carries the shoes b is suspended from the underframe e by links d. A lever g pivoted to the beam coaxially with the lower end of the links is connected by a link i to the upper pivot of the links or co-axially therewith. The pull-rod h is connected to the lever g and thus when the shoes are applied thereby opposing forces are set up at the opposite ends of the suspension links by the toggle action of the lever and the link i which resists movements of the shoes due to play in the pivots of the links. Specification 5150/88, [Class 108, Road vehicles], is referred to.
Patent GB-150981-A (GB)
Title: Improvements in universal joints
IPC: F16D3/205
Filed: 1919-12-31
Abstract: 150,981. Russell, J. M. Sept. 6, 1919, [Convention date]. Channels and reservoirs in universal joints.- In order to facilitate the lubrication of universal joints of the type having a ball and spherical casing, tapered pivot pins 21 engage similar sockets 26 in the ball 10, and have flattened heads 23 engaging slots 24 in the casing 12, 13. Lifting of the pins occurring during drive allows grease contained in spaces 15, 15<1> in the casing and in recesses 29 in the ball to pass to the bottoms of the pivot sockets, which are suitably grooved. The shaft 11 may slide on splines within the ball 10, lubricating holes connecting the splines with the bottoms of the pivot sockets.
Patent GB-649813-A (GB)
Title: Improvements in or relating to seeders for use with tractors
Inventor: ELLIS EDWARD DARWENT
IPC: A01C7/20
Filed: 1948-12-20
Abstract: 649,813. Seed sowers. HUMBERSIDE AGRICULTURAL PRODUCTS CO., Ltd. Dec. 20, 1948, No. 32858. [Class 6(i)] Relates to seeders of the kind in which a hopper 5 fitted with agitator and metering devices is mounted on a beam 1, the latter being supported by wheels 3, 4, and carrying a tool 8 for opening the ground to receive the seeds and tools 9 for covering the seeds. According to the invention a tow bar 10 is pivoted to the beam at a point intermediate its end and is connected with a resilient device 16 in such manner that the seeder may rock about its point of attachment to the tow bar and is urged into contact with the ground. In the construction shown the beam 1 is composed of two similar members one on either side of the hopper and each carries a tow bar 10. Each tow bar is pivoted to a part 21 of the chassis or of a tool bar on the towing vehicle, and each has a sleeve 12 for slidably receiving rods 14 for the springs 16. The rods 14 are pivoted at 24 to the part 20 of the chassis or tool bar. Several such assemblies may be towed side by side behind a vehicle, and in such a case the shut-off valves for the several hoppers may be operated simultaneously by a transverse bar fitting into the slotted ends of links 28 which are connected to their respective valves by links 29, 30, and levers 31.