baber/WOPTO huggingface dataset:
Patent GB-1420542-A (GB)
Title: Method of recovery of hydrochloric acid in gaseous form
IPC: C01B7/01
Filed: 1974-04-01
Abstract: 1420542 Gaseous hydrogen chloride COMMISSARIAT A L'ENERGIE ATOMIQUE 1 April 1974 [24 April 1973] 14296/74 Heading C1A A method of recovery of gaseous hydrogen chloride from an organic solvent S 1  loaded with hydrochloric acid in dilute aqueous solution comprises partially dehydrating said loaded organic solvent in an extractor E 1  by countercurrent contact with an aqueous solution having a high concentration of chloride ions, and then distilling the organic solution. The loaded organic solvent may itself be derived from dilute aqueous hydrochloric acid by countercurrent contact between the acid and the solvent S 1  in an extractor E 2 , or from impure gaseous hydrogen chloride by countercurrent contact in an extractor of the solvent S 1  and a salting-out solution which has previously absorbed in a liquid/gas unit the hydrogen chloride contained in the impure gas. The concentrated solution of chlorides, after passing through the extractor E 1 , may be contacted countercurrently with solvent S 1  in an extractor E 3  to remove hydrochloric acid, and may then be reconcentrated and recirculated to extractor E 1 .
Patent GB-1501664-A (GB)
Title: Pump for fluids and semi-fluids containing fibres
IPC: F04D7/04
Filed: 1975-04-08
Abstract: 1501664 Centrifugal pumps ITT INDUSTRIES Inc 8 April 1975 [16 April 1974] 14321/75 Heading F1C [Also in Division B2] A pump for fluids and semi-fluids which may contain fibres comprises an impeller having at least one vane 2 having a portion 3 extending through the inlet 5. The inlet 5 has three projections 10 (or recesses 11), Fig. 4, (not shown) providing cutting edges co-operating with the vane 2 which is S-shaped as shown. Scrapers 8, which may be radial or, as shown, swept backwards, prevent fibres from getting wound around the pump shaft 1. The impeller may be provided with a detachable cutting edge (13), Fig. 6 (not shown).
Patent GB-593186-A (GB)
Title: Automatic electronic control systems for the regulation of variables
IPC: H02P9/04
Filed: 1944-07-27
Abstract: 593,186. Automatic control systems. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. July 27, 1944, No. 14337. Convention date, July 17, 1943. [Class 38 (iv)] Speed; fluid level; power.-In a system for automatically regulating a quantity in electrical plant, an A.C. voltage representing the regulated quantity is applied in phase to the grid circuits of two valves, a D.C. antihunt voltage is applied in opposite polarity to the said grid circuits, and the anodes of the valves are supplied with A.C. in phase opposition, the difference between the mean values of the anode currents being utilised for regulation. In an automatic speedregulating system for a water turbine, a tachometer alternator 1, driven by the turbine and giving a frequency proportional to turbine speed, supplies the anode circuits of valves 5 and 6 through a transformer 7, having a primary winding 8 and secondary windings 9 and 10, so that the valves conduct during alternate half-cycles. Alternator 1 also supplies a condenser 14 in series with a circuit 2, which is resonant at a frequency corresponding to the desired turbine speed, the voltage across condenser 14 being injected into the grid circuits of the valves so that the two grid potentials are in phase. At the desired turbine speed the voltage across condenser 14 is in quadrature with the anode voltages and the resultant excitation of a coil 11, halves of which are in each of the anode circuits and which controls the turbine speed regulator, is zero. Deviation from the desired speed causes a phase shift of the voltage across condenser 14 and a resultant excitation of coil 11, corresponding in magnitude and sense to the deviation, to correct the deviation. A potentiometer 17, the slider of which is coupled to the turbine speed regulator, produces, from a constant voltage D.C. source, a voltage, corresponding in magnitude and sense to regulator displacement, which is injected into the grid circuits of the valves to prevent hunting. Network 15, 16 introduces a control component proportional to the rate of change of regulator displacement. In modifications, the A.C. voltage applied to the grid circuits of the valves is dependent on water level or power in a single or polyphase electric circuit for automatic regulation of those quantities.
Patent GB-752947-A (GB)
Title: Electric circuit breaker with hydraulic motor controlled by a hydraulically biased valve
IPC: H01H33/34
Filed: 1954-05-17
Abstract: 752,947. Automatic circuit-breaker; actuation of switches. ALLIS-CHALMERS MANUFACTURING CO. May 17, 1954 [May 26, 1953], No. 14437/54. Class 38(5) [Also in Group XXIX] A circuit-breaker is closed by a piston actuated by liquid stored under pressure in a pneumo-hydraulic accumulator and released under control of an electromagnetically-actuated valve having land surfaces separated by grooves which are so shaped that liquid exhausted from beyond the piston assists the operation movement of the valve. In the circuit-breaker shown, movement of a trip lever 47 or energizing of coil 45 causes a latch 41 to move clear of a roller 28 whereby, under the action of opening spring 17, toggle links 24, 26 collapse upwards and a roller 31 at the knee of toggle links 26, 27 slips off a retaining prop 33 and comes to rest on a ram 32, the toggle 24, 26 being reset and relatched by 41 in the process. To reclose, the ram 32 is hydraulically raised and lifts the roller 31 against a resilient stop 36, the prop 33 then slipping under the roller 31 to retain it. The ram 32 forms part of a piston 8 the upper and lower faces of which communicate by pipes 97, 79, respectively, with a valve chamber having supply and exhaust pipes 82, 86, respectively. The movable element of the valve has lands 67...70 co-operating with transverse ports 72, 73, and can be actuated either manually or by an electromagnet 95 against spring-action 98. The spaces between the outer pairs of lands are shaped so that liquid emerging from the exhaust side of piston 8 into the valve casing sets up a pressure on the movable valve element to assist the motion means in rapidly moving it to its actuated position. To close, 'the element is moved to the left and admits liquid from pipe 82 to pipe 79, liquid above the piston 8 exhausting via pipe 97 into chamber 80 and acting on the land 68 to assist the leftwards movement of the element. When the breaker is fully closed, a limit switch de-energizes the electromagnet 95 and spring 98 restores the element to its right-hand position. Liquid is now supplied via 82 and 97 above the piston 8 to lower it, the liquid beneath it being exhausted via 79 and chamber 81, arid assisting the spring' 98 in moving the element. In both cases the exhaust liquid is returned via pipe 86 to a reservoir 60 whence it. is pumped by a motor pump 62 or hand pump 61 (which may be used for jacking up the piston 8) into a pneumohydraulic accumulator 50. The latter comprises a high-pressure shell 51 normally filled by a synthetic rubber bag 53 charged via valve 52 with dry nitrogen to two-thirds the desired operating pressure. The bag is held inside the shell by a valve 56, but when liquid (such as oil) is pumped into the shell, the bag is compressed to the normal operating pressure. The inlet chamber 83 may, alternatively, be adapted to accelerate the movement of the movable valve element.
Patent GB-1065622-A (GB)
Title: Reflector assembly
Inventor: MARTIN GRAHAM ROY
IPC: E01F9/07
Filed: 1965-04-06
Abstract: 1,065,622. Reflector studs. SAMUEL PLATT Ltd. Feb. 22, 1966 [April 6, 1965], No. 14503/65. Heading E1G. 'In a road marking reflector stud having a resilient mounting member 12 secured within a rigid housing 10, a reflector carrier 18, having reflectors 19 at each end, is retained within a bore 17 in the mounting 12 by projection and recess means 20, 21. The mounting 12 is retained in the housing 10 by projections engaging holes 15 in the mounting and a slot in the mounting allows wiping of the reflectors 19 by sides 14 on depression of the stud top.
Patent GB-1302095-A (GB)
IPC: B21J7/16
Filed: 1970-03-25
Abstract: 1302095 Forging MASCHINENFABRIK SACK GmbH 25 March 1970 [5 April 1969] 14552/70 Heading B3H A multi-die forging machine has each die 1-4 driven by a working cylinder 11-14 connected to its own pump 57-60 whose piston 61-64 is mechanically coupled to the other pump pistons for synchronous reciprocation, the return stroke of the pistons being effected by a constant hydraulic pressure. The pump pistons are connected to a crosshead 65 driven by a crank 67. The dies 1-4 are pivoted about axes parallel to the direction of movement of the workpiece 5. The return stroke of the working pistons 15-18 is effected by piston-cylinder units 43-46 connected to a pressure storage vessel 50. The piston-rods 39-42 of the return stroke units are pivoted to the dies which are also connected to electric position transmitters 31-34. The signals from these transmitters are applied to positioning motors 27-30 for screw adjustable stops 19-22 for the working pistons. The motors can be individually operated to alter the end of the stroke and hence the workpiece crosssection. Near the end of the return stroke the hydraulic lines 53-56 from the pumps to the working cylinders are drained to a tank 52 through lines 81-84 with valves 76-79 controlled by cams 72-75 on the crank-shaft 71. The lines 53-56 are refilled by a low-pressure pump 85. The replacement of working fluid removes heat from the working cylinders and compensates for any leakage.  In a similar embodiment, Fig. 2 (not shown), the pump pistons (61)-(64) are connected in pairs to a pair of crossheads (65) each driven by a crank and connected by a shaft (103). Alternatively each pump piston may be driven by its own crank and the cranks are connected mechanically together. To prevent overloading of the machine each line (53)-(56) contains an hydraulic accumulator (108)-(111) in which fluid can be temporarily stored. The fluid circuitry also includes a recycling device controlled by a normally closed magnetic valve (118). The recycling device provides recycling of fluid when the machine is inoperative to replace hot working fluid. The machine may have an auxiliary flushing pump. Reference has been directed by the Comptroller to Specification 1,164,657.
Patent GB-369789-A (GB)
Title: Improvements in apparatus and means for applying and removing covers of jars, bottles, and the like
IPC: B65D45/32
Filed: 1931-05-18
Abstract: 369,789. Applying jam-covers. BOVY, J., 27, Place Pairay, Seraing, Belgium. May 18, 1931, No. 14599. Convention date, May 17, 1930. Addition to 357,935. [Class 125 (ii).] A device for applying and removing covers from jars, bottles, &c. comprises a flexible rubber disc 2 having a central aperture 5 which is forced over the neck of the jar &c., and a metal core 1 near the periphery of the disc. The core 1 may be circular or rectangular in cross section.
Patent GB-983214-A (GB)
Title: Water-dispersed coating compositions
IPC: C09B3/00
Filed: 1962-04-17
Abstract: A water dispersed coating composition comprises a mixture of (1) a water-soluble neutralized adduct of 4-14% by weight of an a ,b -ethylenically unsaturated dicarboxylic acid and/or anhydride with 86-96% of a drying or semi-drying oil, and (2) a latex of a copolymer of 25-66 mol. per cent conjugated diolefin and 34-75% styrene or derivative thereof, or a water-soluble aminoplast, or a water-soluble epoxy resin.  The adduct is sufficiently neutralized e.g. with ammonia, an amine, or a quaternary ammonium hydroxide to form a clear solution in water at a pH of 7.5 without the use of organic solvents. It is also capable of forming a water-insensitive film when baked at 350 DEG  F. for 30 minutes.  A small amount of an amino-alkyl-alkanediol, e.g. 2 - methyl - 2 - amino - 1,3 - propanediol; 2 - ethyl - 2 - amino - 1,3 - propanediol, or 2 - methyl-2-amino-1,4-butanediol may be added to the neutralized adduct. Suitable latices for ingredient (2) of the compositions contain copolymers of:-styrene and butadiene; styrene and isoprene; 4-chlorostyrene and butadiene; 4-chlorostyrene and isoprene; 2- or 3-chlorostyrene and butadiene; a methyl styrene and butadiene; styrene, butadiene and methyl or ethyl acrylate.  In the example compositions were prepared containing one of three adducts prepared from linseed oil with differing amounts of maleic anhydride; butadiene - styrene latex; TiO2; lamp black; talc; barytes; strontium chromate; suspending agent (Ben-A-Gel); anti-foaming agent; manganese naphthenate; pine oil; wetting agent (Tamol 731); ammonia; and water. The compositions were coated on phosphatized metal and baked.
Patent GB-558177-A (GB)
Title: Improvements in document-holding clips for wallets and document files
IPC: B42F13/14
Filed: 1942-10-22
Abstract: 558,177. Loose-leaf binders. CASSIN, P. Oct. 22, 1942, No. 14835. [Class 146 (i)] In a loose-leaf binder of the kind in which the papers are retained on filing-posts b by a U-shaped clamping-rod d, which is pivoted to a baseplate a and is held in either closed or open position by the action of cams and blade-springs, the ends of the clamping-rod d are bent inwards to serve as pivots and are formed with cranked portions d<SP>2</SP>, against which the blade-springs e bear. The pivot portions of the rod turn in bearing-lugs c bent out of the baseplate. The springs are secured to the baseplate by the reduced shanks of the filing-posts e, and are of curved form to allow the posts to be located near the ends of the baseplate.
Patent GB-151681-A (GB)
Title: Improvements in advertising devices for use upon railways
IPC: G09F21/04
Filed: 1919-06-12
Abstract: 151,681. Drury, C. W. June 12, 1919. Reel and endless-web apparatus; rotary prism and like apparatus; moving and changing apparatus.-Relates to advertising devices for use upon railways whereby a kinematograph effect of moving pictures is seen by passengers. An endless band 1, Figs. 2 and 3, bearing the pictures moves over rollers 2 and is glimpsed a picture at a time through openings 5 in an endless obturator band 4 moving in the opposite direction over rollers 6 geared to the rollers 2. Motion is imparted to the bands 1, 4 by the passage of the train 3, which carries a contact plate 16 engaging rubber-edged wheels 12 journaled in resiliently held blocks 14 and coupled to the rollers 2. The speed of the band 1 relative to the train depends on the size of the rollers 2 relative to the wheels 12. The bands 1, 4 may alternatively be driven by an independent motor. In a modification, a series of short endless bands 20, Fig. 5, each mounted on two rollers 21 and bearing only two pictures is employed, the pictures moving at the same rate as the train and no obturating band being employed. The bands 20 are moved by studs on the top or on the footboard of the train engaging claws &c. 26 on a belt 24 moving over pulleys 23 connected to the rollers 21. The claws 26 are prevented from sagging by a support 43 arranged under the whole length of the belt 24. Alternatively, a pulley actuated by the footboard may be employed. In another modification, shown in Fig. 13, pictures are mounted on two, three, or four sided bodies 31 rotated by the passing train. In other forms, a board 31 carrying the picture is pivoted, as in Fig. 15, or moves in guides, so as to be turned by an arm 40, a spring- or weight-actuated cord 39 returning the board 31 back to its initial position after each stud 25 has passed.
Patent GB-724356-A (GB)
Title: Improvements in reflecting belts
IPC: G08B5/00
Filed: 1953-05-29
Abstract: 724,356. Road traffic signs. THROWER, A. H. June 30, 1953 [May 29, 1953], No. 14960/53. Drawings to Specification. Class 3 (2). [Also in Group VII] A safety device for pedestrians, cyclists and others comprises a waist belt to which is fitted a number of chromium plated polished metallic domes in any geometrical pattern. These domes reflect light from the head lamps of an overtaking vehicle to the driver.
Patent GB-504506-A (GB)
Title: Improvements in or relating to electrically heated pipes for conveyance of liquids
IPC: H05B6/02
Filed: 1938-05-19
Abstract: 504,506. Electrically - heated pipes ; joints. HEJDUK, F., and NEUMANN, J. May 19, 1938, No. 14962. Convention date, May 19, 1937. [Classes 99 (i) and 99(ii)] [Also in Group XI] An electrically-heated pipe for viscous liquids is bifurcated, each branch having an insulated joint 9<1>, the secondary windring of a transformer 8 being connected to each branch adjacent the joint. The pipe connection at 2 is preferably insulated. In a modification one branch only has a joint, the tramsformer leads being connected on each side of it. The joint comprises an insulating disc 9 and resilient gaskets 11 clamped between the flanges 10 by bolts 12. Each bolt has an insulating sleeve 13, and the bolt head and nut bear on a metal washer 14 and insulating washer 15.
Patent GB-1028013-A (GB)
Title: Improvements in or relating to current converter arrangements
IPC: H02M7/17
Filed: 1963-04-16
Abstract: 1,028,013. Automatic control of current and voltage. SIEMENS-SCHUCKERTWERKE A.G. April 16,1963 [April 14,1962] No. 14968/63. Heading G3R. [Also in Division H2] A rectifying arrangement for supplying a number of loads 2,8 from an A.C. source R.S.T. comprises a plurality of bridge circuits fed from a secondary winding 15 of a supply transformer, one half of each rectifier bridge being common to all the rectifier bridges and comprising uncontrolled rectifiers 14 which provide a common D.C. terminal for all the loads, and the other half of each bridge circuit 6,12, comprising controllable rectifier 7 (semi-conductors rectifiers or mercury arc tubes) providing individual D.C. terminals for the loads. A control device 20 provides phaseshiftable control pulses for the rectifiers 7. Automatic regulation is provided by a regulator 21 which is respondent to the load current as measured by a Hall device 4 and to the load voltage as measured by a potentiometer 3. Protection against a short circuit or overload in the D.C. or A.C. sides is effected by blocking device 23 which blocks the grid pulses from the device 20. The blocking device 23 is responsive to the A.C. current as detected by a circuit 30, 31, 32, and also to the individual rectifier currents as detected by a circuit 34, 35, 36. The arrangement may be such that only the least important loads are disconnected.
Patent GB-1526641-A (GB)
Title: Torque converter fluid control system for power transmission system
IPC: F16H41/30
Filed: 1977-04-12
Abstract: 1526641 Hydrodynamic torque converters; friction clutches NISSAN MOTOR CO Ltd 12 April 1977 [12 April 1976] 14996/77 Headings F2C and F2W In order to reduce the liquid pressure on a seal 46 adjacent a bearing 16 which supports a torque converter driven shaft 14 and is lubricated by liquid from the torque converter return passage 32A, a restriction 44 is provided bebetween the passage 32A and the bearing 16 and a lubricant return duct 50 is provided between the restriction 44 and bearing 16. An input driven pump 28 supplies liquid to the torque converter 10 at a pressure determined by a regulating valve 30 and a predetermined pressure is maintained in the return line 32A by a valve 34. Return flow passes through a cooler 36. In Fig. 2 (not shown) the driven shaft 14 is fast with a driving flywheel of a diaphragm spring clutch and the pump 28 is positioned between the torque converter 10 and bearing 16.
Patent GB-241520-A (GB)
Title: An improved universal joint
IPC: F16H35/02
Filed: 1925-06-09
Abstract: 241,520. Reisner, E. Oct. 17, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Universal joints for conveying power from or to rotary-piston engines or pumps. A shaft 9 is held at a fixed inclination to concentric shafts 1, 4 connected to two pistons, and is coupled to them by Hooke's or other universal joints having their corresponding elements at right-angles. The shaft 1 is shown connected by a fork 7 and pivotal ring 13 to a fork 11 on the shaft 9, and the shaft 4 by a fork 8 and pivotal ring 14 to a fork 12 perpendicular to the fork 11. As applied to a rotary-piston steam engine, the shafts 1, 4 are subjected to equal and opposite torques, while, if the shaft 9 drives, the universal joints act to produce cyclic velocity variations in the shafts 1, 4 for actuating a rotary-piston pump.
Patent GB-942721-A (GB)
Title: Automatic conveyor mechanism
IPC: B23Q7/10
Filed: 1962-04-18
Abstract: 942,721. Feeding metal rods to milling machines. CINCINNATI MILLING MACHINE CO. April 18, 1962 [Oct. 2, 1961], No. 15031/62. Headings B8A and B8S. The rods 10 are fed from the zig-zag shaped magazine 16 to a rotary milling table 12 by means of reciprocating carriage 18. Carriage 18 is provided with a plurality of slots 52 and progresses rightwards in Fig. 3 along way 24 and beneath magazine 16 so that the rods 10 fall one by one into the slots 52. Carriage 18 thus loaded then positions itself in front of table 12 at which position fluid cylinder 58 operates to cause pins 50 of a ram 48 to pass through the slots 52 and push the respective rods on to the table 12. Pins 50 are spring biased. Table 18 which has meanwhile been supporting the remaining stack of rods in magazine 16 then moves to the left in Fig. 3 and is then ready for a return movement to the right to collect a further batch of rods from magazine 16 to feed them to table 12. The movement of carriage 18 is effected by fluid cylinder 32 and is controlled by limit switches 44 and 46.
Patent GB-540851-A (GB)
Title: Improvements in or relating to building structures or walls
IPC: E04B2/14
Filed: 1940-10-08
Abstract: 540,851. Buildings. HEWITT, C., and HEWITT, A. Oct. 8, 1940, No. 15035. [Class 20 (iv)] Concrete building blocks are each formed with two cavities and are arranged in rows one above the other so that keys 5 of metal, wood, concrete, or burnt clay may be inserted diagonally to engage the cavities of two superposed blocks. Superposed keys 5, 6 rest in contact, and a series of shorter keys 7 are placed at the bottom to support the keys above in correct position. In a modification, the central partition 4 may be of double thickness so that the cavities register accurately. Floors, roofs or walls may be formed of these blocks. An arch may be formed by the insertion of wedges between blocks or by tapering sides of the blocks.
Patent GB-203029-A (GB)
Title: Improvements in centrifugal gun
IPC: F41B3/04
Filed: 1922-05-29
Abstract: 203,029. Dehn, F. B., (Centrifugal Gun Corporation). May 29, 1922. Machine guns; sights.-The rotating disc 29 of a centrifugal machine gun is provided with a spiral rib 49 to the inner end of which the ball projectiles are fed, a ball being released at each revolution of the disc and impelled by the rib towards a tangential discharge opening 84 in the casing surrounding the disc. In the form shown, the disc together with its electric driving motor 15 is mounted in a frame 14 which can be elevated about trunnions 13 by a worm-gear 18. The disc rotates in a casing formed by an annular ring 32 and cover plates 30, 31, which casing is provided with a handle 37 whereby it can be trained relatively to the frame 14 so as to vary the position of the discharge opening 84. The position of the discharge opening may also be varied by providing alternative bolt holes 86 in the ring 32 for the cover bolts 87. To assist the aim, a bar 38, Fig. 4, carrying open sights 39, 40 is pivoted at 41 to the casing and adjusted by a scale 46 and pointer 45. The balls are fed to the spiral rib from a hopper 58 through a tube 56 having a spring finger 60 for retarding the balls. A plug 62 enables the supply of balls to be entirely cut off. The balls are conveyed down a fixed helical groove 80 by a grooved projection 82 on the rotating disc, the enlargement 81 of the groove permitting of the release of a ball to the rib 49. The disc may carry two ribs 49, Fig. 5, with hardened steel faces 50, the second rib being brought into position for use when the first is worn.